TW201532811A - In-mold transfer foil, method for manufacturing same, decorative molded article, and method for manufacturing same - Google Patents
In-mold transfer foil, method for manufacturing same, decorative molded article, and method for manufacturing same Download PDFInfo
- Publication number
- TW201532811A TW201532811A TW103135447A TW103135447A TW201532811A TW 201532811 A TW201532811 A TW 201532811A TW 103135447 A TW103135447 A TW 103135447A TW 103135447 A TW103135447 A TW 103135447A TW 201532811 A TW201532811 A TW 201532811A
- Authority
- TW
- Taiwan
- Prior art keywords
- layer
- transfer foil
- mold transfer
- ultraviolet
- base film
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 100
- 239000011888 foil Substances 0.000 title claims abstract description 98
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000010410 layer Substances 0.000 claims abstract description 317
- 229920005989 resin Polymers 0.000 claims abstract description 97
- 239000011347 resin Substances 0.000 claims abstract description 97
- 239000012790 adhesive layer Substances 0.000 claims abstract description 35
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 13
- 238000001746 injection moulding Methods 0.000 claims description 48
- -1 isocyanate compound Chemical class 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 8
- 239000012948 isocyanate Substances 0.000 claims description 8
- 125000000524 functional group Chemical group 0.000 claims description 6
- 238000004132 cross linking Methods 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 40
- 239000000463 material Substances 0.000 description 35
- 238000007646 gravure printing Methods 0.000 description 21
- 238000000465 moulding Methods 0.000 description 21
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 18
- 238000007650 screen-printing Methods 0.000 description 16
- 239000004925 Acrylic resin Substances 0.000 description 11
- 229920000178 Acrylic resin Polymers 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 10
- 239000006096 absorbing agent Substances 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 9
- 238000001723 curing Methods 0.000 description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical group C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 7
- 229920001187 thermosetting polymer Polymers 0.000 description 7
- 239000004640 Melamine resin Substances 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 6
- 150000004706 metal oxides Chemical class 0.000 description 6
- 239000000049 pigment Substances 0.000 description 6
- 229920001225 polyester resin Polymers 0.000 description 6
- 239000004645 polyester resin Substances 0.000 description 6
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical group CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 5
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 5
- 239000012964 benzotriazole Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005034 decoration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- 238000001465 metallisation Methods 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 4
- 229920001651 Cyanoacrylate Polymers 0.000 description 3
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 206010057040 Temperature intolerance Diseases 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 3
- 239000012965 benzophenone Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000012461 cellulose resin Substances 0.000 description 3
- 229910000420 cerium oxide Inorganic materials 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008543 heat sensitivity Effects 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
- 229920006122 polyamide resin Polymers 0.000 description 3
- 239000011112 polyethylene naphthalate Substances 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 3
- 229960001860 salicylate Drugs 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 229920007019 PC/ABS Polymers 0.000 description 2
- XVEUJTIZHZIHJM-UHFFFAOYSA-N a828782 Chemical compound CCOC(N)=O.CCOC(N)=O XVEUJTIZHZIHJM-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 150000007974 melamines Chemical class 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical compound C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- QCTJRYGLPAFRMS-UHFFFAOYSA-N prop-2-enoic acid;1,3,5-triazine-2,4,6-triamine Chemical compound OC(=O)C=C.NC1=NC(N)=NC(N)=N1 QCTJRYGLPAFRMS-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14827—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using a transfer foil detachable from the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/75—Printability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Decoration By Transfer Pictures (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Description
本發明係關於模內轉印箔及其製造方法、以及加飾成形品及其製造方法，更詳細而言係關於適合工業製品之加飾的模內轉印箔及其製造方法、以及加飾成形品及其製造方法。 The present invention relates to an in-mold transfer foil, a method for producing the same, and a decorative molded article and a method for producing the same, and more particularly to an in-mold transfer foil suitable for decoration of an industrial product, a method for producing the same, and a decorative article Molded article and its method of manufacture.
使用模內轉印箔的成形品係用於日常用品和生活用品等之機器本體、食品和各種物品之容器類、電子機器和事務用品等外殼類等。 The molded article using the in-mold transfer foil is used for a machine body such as daily necessities and daily necessities, a container for foods and various articles, an outer casing such as an electronic device and a business article, and the like.
所謂模內轉印箔係在作為基材之基膜上形成例如離型層、印刷層、接著層之塑膠加飾成形用的轉印箔。又，模內射出成形係將模內轉印箔供給於一對射出成形用模具之間，將已加熱加壓之成形樹脂填充於藉由該射出成形用模具所形成的模腔(cavity)後，將基膜及離型層剝離，並將印刷層轉印於成形樹脂來進行裝飾的成形方法。再者，上述印刷層通常亦稱為加飾印刷層。 The in-mold transfer foil is a transfer foil for forming a plastic decorative molding such as a release layer, a printing layer, and an adhesive layer on a base film as a substrate. Moreover, the in-mold injection molding system supplies the in-mold transfer foil between a pair of injection molding dies, and fills the molded resin heated and pressed into the cavity formed by the injection molding die. A method of forming a base film and a release layer, and transferring the printed layer to a molding resin to perform decoration. Furthermore, the above printed layers are also commonly referred to as decorative printed layers.
作為用於獲得表面強度高之成形品的模內轉印箔，有一種物，其在離型層上形成由紫外線硬化性樹脂所構成的硬塗層，再於其上形成印刷層、接著層等。當該模內轉印箔時，若於加飾成形前照射紫外線來硬化 硬塗層，則會損害成形性。因此，宜為在加飾成形後對成形品的表面照射紫外線並使硬塗層硬化。 As an in-mold transfer foil for obtaining a molded article having a high surface strength, there is a material in which a hard coat layer composed of an ultraviolet curable resin is formed on a release layer, and a printed layer and an adhesive layer are formed thereon. Wait. When the in-mold transfer foil, it is hardened by irradiating ultraviolet rays before the molding is formed. A hard coat layer impairs formability. Therefore, it is preferable to irradiate the surface of the molded article with ultraviolet rays and to harden the hard coat layer after the molding is formed.
由於以往的模內轉印箔的印刷層係僅將文字或花樣等平面地印刷於基膜上的結構，所以有成形品表面缺乏立體感的問題。作為成形品表面具有立體感的方法之一，則有在成形時構成模腔之一對射出成形用模具的內側之基膜所對接之側，預先設置凹凸花紋。 Since the printed layer of the conventional in-mold transfer foil is a structure in which only characters or patterns are printed on the base film in a plane, there is a problem that the surface of the molded article lacks a three-dimensional feeling. One of the methods of having a three-dimensional effect on the surface of the molded article is a side in which one of the cavities is formed to be in contact with the base film on the inner side of the injection molding die at the time of molding, and an uneven pattern is provided in advance.
但是，該等凹凸形成方法係1個射出成形用模具僅能對應1個凹凸花紋，對應多種的凹凸花紋則需要準備多個射出成形用模具。因此上述凹凸形成方法產生成本變高的問題。又，由於隨模內轉印箔的供給位置來確定凹凸花紋的位置，所以上述凹凸形成方法不易對應模內轉印箔的花樣和凹凸花紋。 However, in the unevenness forming method, one injection molding die can correspond to only one embossing pattern, and it is necessary to prepare a plurality of injection molding dies corresponding to a plurality of embossing patterns. Therefore, the above-described unevenness forming method has a problem that the cost becomes high. Further, since the position of the uneven pattern is determined in accordance with the supply position of the in-mold transfer foil, the above-described uneven pattern forming method is less likely to correspond to the pattern of the in-mold transfer foil and the uneven pattern.
因此，作為成形品表面形成凹凸的方法，提案有一種方法，其在基膜之一面具備離型層、印刷層、用於將該印刷層接著於成形品表面的接著層，同時在上述基膜之另一面設置藉由印刷形成之凹凸形成層(參照例如專利文獻1)。又亦提案有一種模內轉印箔，其藉由熱硬化性樹脂形成該凹凸形成層，並且具有包含紫外線硬化性樹脂之硬塗層作為轉印層(參照例如專利文獻2)。 Therefore, as a method of forming irregularities on the surface of a molded article, there is proposed a method in which a release layer, a printed layer, and an adhesive layer for adhering the printed layer to the surface of the molded article are provided on one surface of the base film while the base film is On the other surface, a concavo-convex formation layer formed by printing is provided (see, for example, Patent Document 1). Further, there has been proposed an in-mold transfer foil which is formed of a thermosetting resin and has a hard coat layer containing an ultraviolet curable resin as a transfer layer (see, for example, Patent Document 2).
專利文獻1 日本特開平1-120398號公報 Patent Document 1 Japanese Patent Laid-Open No. Hei 1-120398
專利文獻2 日本特開2012-183808號公報 Patent Document 2 Japanese Patent Laid-Open Publication No. 2012-183808
順帶一提，由於預期工業製品係經過長時間使用或在嚴酷環境下使用，所以作為使用於工業製品之加飾的模內轉印箔需要高的轉印後成形品的表面強度。因此，宜為將在離型層上形成硬塗層並再於其上形成印刷層、接著層等而成的模內轉印箔用於工業製品的加飾。 Incidentally, since industrial products are expected to be used for a long period of time or in a severe environment, the in-mold transfer foil used for the decoration of industrial products requires high surface strength of the molded article after transfer. Therefore, it is preferable to use an in-mold transfer foil which is formed by forming a hard coat layer on the release layer and forming a printed layer, an adhesive layer or the like thereon for the decoration of an industrial product.
但是，模內轉印箔所使用的硬塗層大多由紫外線硬化性樹脂所形成。因此在基膜之與離型層相反的面上設置凹凸形成層時，若使用紫外線硬化性樹脂作為形成該凹凸形成層的樹脂，則為了將凹凸形成層硬化而變得必須在加飾成形前對模內轉印箔照射紫外線。此時，由於由紫外線硬化性樹脂所構成的硬塗層本身亦硬化，所以會產生損害模內轉印箔之成形性且容易發生龜裂等的不良品的問題。 However, the hard coat layer used for the in-mold transfer foil is often formed of an ultraviolet curable resin. Therefore, when an unevenness-forming layer is provided on the surface of the base film opposite to the release layer, if an ultraviolet curable resin is used as the resin forming the unevenness-forming layer, it is necessary to cure the uneven-formed layer before the decorative molding. The in-mold transfer foil is irradiated with ultraviolet rays. In this case, since the hard coat layer itself composed of the ultraviolet curable resin is also cured, there is a problem that the moldability of the in-mold transfer foil is impaired and a defective product such as cracks is likely to occur.
又，如專利文獻2所述，當凹凸形成層使用熱硬化性樹脂時，由於硬化時因熱所致之凹凸形狀的變形和硬化費時數小時至數日，而有硬化時因熱及長時間而使形狀變形的問題。又，熱硬化性樹脂相較於紫外線硬化性樹脂，則較少能夠在無溶劑中使用，大多以溶劑稀釋來使用。因此，當使用熱硬化性樹脂時，則有厚塗困難而缺乏立體感的問題。 Further, as described in Patent Document 2, when a thermosetting resin is used as the unevenness forming layer, deformation and hardening of the uneven shape due to heat during curing takes several hours to several days, and heat and time are hardened. And the problem of deforming the shape. Further, the thermosetting resin is less likely to be used in the absence of a solvent than the ultraviolet curable resin, and is often used by dilution with a solvent. Therefore, when a thermosetting resin is used, there is a problem that thick coating is difficult and a three-dimensional feeling is lacking.
另一方面，雖然亦有對於已預先設置凹凸形成層的基膜，依序形成離型層、硬塗層、印刷層、接著層等的方法，但是由於該方法因凹凸形成層的凹凸而產生皺摺和印刷不良，所以實質上難以製造模內轉印箔。 On the other hand, there is a method of sequentially forming a release film, a hard coat layer, a print layer, an adhesive layer, and the like on a base film in which a concavo-convex formation layer is provided in advance, but this method is caused by irregularities of the unevenness-forming layer. Since wrinkles and printing are poor, it is substantially difficult to manufacture an in-mold transfer foil.
本發明係基於該等狀況作出，其課題為：提供一種能夠提供在成形品表面形成凹凸並且具有高表面強度之成形品的模內轉印箔及其製造方法、以及一種加飾成形品及其製造方法。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-mold transfer foil capable of providing a molded article having irregularities on a surface of a molded article and having high surface strength, a method for producing the same, and a decorative molded article and Production method.
本發明係為了達成上述課題而採取如以下的手段。 In order to achieve the above object, the present invention adopts the following means.
本發明之一態樣係一種模內轉印箔，其係在基膜之一面依序具備離型層、包含紫外線硬化性樹脂之硬塗層、與接著層，並在前述基膜之另一面具備凹凸形成層之模內轉印箔，其特徵為：前述凹凸形成層包含紫外線硬化性樹脂，且於前述硬塗層與前述凹凸形成層之間具備紫外線遮蔽層。 One aspect of the present invention is an in-mold transfer foil which is provided with a release layer, a hard coat layer containing an ultraviolet curable resin, and an adhesive layer on one side of the base film, and on the other side of the base film. In the in-mold transfer foil having the unevenness forming layer, the unevenness forming layer includes an ultraviolet curable resin, and an ultraviolet shielding layer is provided between the hard coat layer and the uneven layer forming layer.
又，本發明之一態樣係一種模內轉印箔，其特徵為：前述基膜為前述紫外線遮蔽層。 Further, an aspect of the invention is an in-mold transfer foil, characterized in that the base film is the ultraviolet shielding layer.
又，本發明之一態樣係一種模內轉印箔，其特徵為：在前述基膜與前述凹凸形成層之間具備前述紫外線遮蔽層。 Moreover, an aspect of the invention is an in-mold transfer foil characterized in that the ultraviolet shielding layer is provided between the base film and the unevenness forming layer.
又，本發明之一態樣係一種模內轉印箔，其特徵為：在前述基膜與前述離型層之間具備前述紫外線遮蔽層。 Further, an aspect of the invention is an in-mold transfer foil characterized in that the ultraviolet shielding layer is provided between the base film and the release layer.
又，本發明之一態樣係一種模內轉印箔，其特徵為：前述紫外線遮蔽層為具有羥基及紫外線吸收性官能基的丙烯酸聚合物和異氰酸酯化合物所形成的硬化物。 Further, an aspect of the present invention is an in-mold transfer foil characterized in that the ultraviolet shielding layer is a cured product of an acrylic polymer having an hydroxyl group and an ultraviolet absorbing functional group and an isocyanate compound.
又，本發明之一態樣係一種模內轉印箔，其特徵為：在前述硬塗層與前述接著層之間進一步具備具有既定花樣圖案的印刷層。 Further, an aspect of the invention is an in-mold transfer foil characterized in that a printed layer having a predetermined pattern is further provided between the hard coat layer and the adhesive layer.
又，本發明之一態樣係一種內轉印箔之製造方法，其係用於製造前述模內轉印箔的製造方法，其特徵為：從前述基膜之形成前述凹凸形成層之面側進行用於交聯硬化前述凹凸形成層的紫外線照射。 Moreover, an aspect of the present invention is a method for producing an internal transfer foil, which is a method for producing the in-mold transfer foil, characterized in that the surface of the uneven layer is formed from the base film. Ultraviolet irradiation for crosslinking and curing the unevenness-forming layer is performed.
又，本發明之一態樣係一種加飾成形品，其特徵為：使用前述模內轉印箔並以模內射出成形法所製造。 Further, an aspect of the present invention is a decorative molded article which is produced by using the in-mold transfer foil and by an in-mold injection molding method.
又，本發明之一態樣係一種加飾成形品之製造方法，其特徵為：使用前述模內轉印箔，並對以模內射出成形法所製造的加飾成形品的表面照射紫外線，而將前述硬塗層完全硬化。 Moreover, an aspect of the present invention provides a method of producing a decorative molded article, characterized in that the surface of the decorative molded article produced by the in-mold injection molding method is irradiated with ultraviolet rays by using the in-mold transfer foil. The aforementioned hard coat layer is completely hardened.
根據關於本發明之一態樣的模內轉印箔，由於形成由紫外線硬化性樹脂所構成之凹凸形成層時所照射的紫外線係以紫外線遮蔽層而遮蔽，所以並未進行硬塗層的交聯硬化。從而，能夠保持良好的成形性(例如耐龜裂性等)，同時在轉印時能夠根據構成凹凸形成層之樹脂的厚度，於成形品的表面形成依照該凹凸圖案的凹凸形狀。 According to the in-mold transfer foil of one aspect of the present invention, since the ultraviolet ray irradiated when the uneven layer forming layer composed of the ultraviolet curable resin is formed is shielded by the ultraviolet shielding layer, the hard coat layer is not applied. Joint hardening. Therefore, it is possible to maintain good moldability (for example, crack resistance), and to form a concavo-convex shape according to the uneven pattern on the surface of the molded article at the time of transfer depending on the thickness of the resin constituting the unevenness forming layer.
又，根據關於本發明之一態樣的模內轉印箔，由於未在射出成形用模具的表面賦予凹凸形狀，而能夠於成形品表面形成凹凸形狀，所以不需要製作具有各種凹凸圖案的模具而較經濟。 Moreover, according to the in-mold transfer foil of the aspect of the present invention, since the uneven shape is not provided on the surface of the injection molding die, the uneven shape can be formed on the surface of the molded article, so that it is not necessary to produce a mold having various concave-convex patterns. It is more economical.
再者，由於能夠在已設置由紫外線硬化性樹脂所構成之凹凸形成層的基膜的反面上設置未交聯硬化作為轉印層之包含紫外線硬化性樹脂之硬塗層，所以具有良好的成形性。再者，藉由轉印後對成形品表面照射紫外線，而能夠製造賦予高表面強度並且立體感良好的成形品。 In addition, since a hard coat layer containing an ultraviolet curable resin which is not cross-linked and hardened as a transfer layer is provided on the reverse surface of the base film on which the uneven layer forming layer composed of the ultraviolet curable resin is provided, it has good molding. Sex. Further, by irradiating the surface of the molded article with ultraviolet rays after the transfer, it is possible to manufacture a molded article which imparts high surface strength and has a good three-dimensional effect.
1‧‧‧凹凸形成層 1‧‧‧ uneven layer
2‧‧‧具有紫外線遮蔽性的基膜 2‧‧‧base film with UV shielding
3‧‧‧離型層 3‧‧‧ release layer
4‧‧‧硬塗層 4‧‧‧hard coating
5‧‧‧印刷層 5‧‧‧Printing layer
6‧‧‧接著層 6‧‧‧Next layer
7‧‧‧成形樹脂 7‧‧‧Forming resin
8‧‧‧射出成形用模具 8‧‧‧ Injection molding die
9‧‧‧基膜 9‧‧‧base film
10‧‧‧紫外線遮蔽層 10‧‧‧UV shielding layer
11‧‧‧紫外線遮蔽層 11‧‧‧UV shielding layer
第1圖係關於本發明之第一實施形態之模內轉印箔的截面模式圖。 Fig. 1 is a schematic cross-sectional view showing an in-mold transfer foil according to a first embodiment of the present invention.
第2圖係關於本發明之第二實施形態之模內轉印箔的截面模式圖。 Fig. 2 is a schematic cross-sectional view showing an in-mold transfer foil according to a second embodiment of the present invention.
第3圖係關於本發明之第三實施形態之模內轉印箔的截面模式圖。 Fig. 3 is a schematic cross-sectional view showing an in-mold transfer foil according to a third embodiment of the present invention.
第4圖係顯示從關於本發明之第一實施形態之模內轉印箔的接著層側，將成形樹脂射出至射出成形用模具模腔內時之樣子的截面模式圖。 Fig. 4 is a cross-sectional schematic view showing a state in which the molding resin is injected into the cavity of the injection molding die from the adhesive layer side of the in-mold transfer foil of the first embodiment of the present invention.
第5圖係使用關於本發明之第一實施形態之模內轉印箔所成形之表面上具有凹凸的加飾成形品的截面模式圖。 Fig. 5 is a cross-sectional schematic view showing a decorative molded article having irregularities on the surface formed by the in-mold transfer foil of the first embodiment of the present invention.
[用以實施發明之形態]首先，簡單說明使用模內轉印箔的模內射出成形法，隨後利用圖式依序詳細說明關於本發明之第一實施形態至第三實施形態之模內轉印箔。 [Formation for Carrying Out the Invention] First, an in-mold injection molding method using an in-mold transfer foil will be briefly described, and then the in-mold conversion of the first to third embodiments of the present invention will be described in detail using the drawings in order. Printed foil.
所謂模內射出成形法，係至少具有4個步驟的射出成形法：(1)準備模內轉印箔的步驟、(2)將模內轉印箔插入至射出成形用模具內的步驟、(3)藉由將樹脂進行射出成形於射出成形用模具並使其密著，而於所射出之樹脂表面轉印模內轉印箔的轉印層的步驟、和(4)將所射出之樹脂冷卻後，打開射出成形用模具，並將基膜及離型層剝離而取出成形品的步驟。再者，本發明中，紫外線和UV表示相同意思。 The in-mold injection molding method is an injection molding method having at least four steps: (1) a step of preparing an in-mold transfer foil, and (2) a step of inserting an in-mold transfer foil into a mold for injection molding, ( 3) a step of transferring a resin into an injection molding die and adhering it, and transferring a transfer layer of the in-mold transfer foil to the surface of the resin to be ejected, and (4) discharging the resin After cooling, the injection molding die is opened, and the base film and the release layer are peeled off to take out the molded article. Further, in the present invention, ultraviolet rays and UV mean the same meaning.
以下，參照圖式並說明關於本發明之第一實施形態之模內轉印箔的全體結構。 Hereinafter, the overall structure of the in-mold transfer foil according to the first embodiment of the present invention will be described with reference to the drawings.
第1圖所示之關於第一實施形態的模內轉印箔，係構成為具備具有紫外線遮蔽性能的基膜2，在基膜2之一面依序具備離型層3、包含紫外線硬化性樹脂之硬塗層4、和接著層6，並且在基膜2之另一面具備包含紫外線硬化性樹脂之凹凸形成層1。再者，在硬塗層4和接著層6之間亦可形成有固定(anchor)層和由有色印墨所形成的加飾層、金屬蒸鍍層等，第1圖例示有形成有印刷層5的情況。以下詳細說明上述各層。 The in-mold transfer foil of the first embodiment shown in Fig. 1 is provided with a base film 2 having ultraviolet shielding performance, and a release layer 3 is provided on one surface of the base film 2, and an ultraviolet curable resin is contained. The hard coat layer 4 and the adhesive layer 6 are provided on the other surface of the base film 2, and the unevenness-forming layer 1 containing an ultraviolet curable resin is provided. Further, an anchor layer and a decorative layer formed of a colored ink, a metal deposition layer, and the like may be formed between the hard coat layer 4 and the adhesive layer 6, and FIG. 1 illustrates that the printed layer 5 is formed. Case. The above layers will be described in detail below.
作為具有紫外線遮蔽性能的基膜2，只要具有紫外線遮蔽性能且在製造及成形步驟中具備所需要的耐熱性、機械強度、耐溶劑性等，則能夠根據用途而適用各種材料。例如，基膜2係能夠藉由具有紫外線遮蔽 性能的材料和各種聚合物混合或合成而成的材料所製作。其中，所謂紫外線遮蔽性能，意指藉由將光波長為200nm以上380nm以下之範圍內的光吸收或反射，而使紫外線的穿透遮蔽或減少之性能。 The base film 2 having ultraviolet shielding performance can be applied to various materials depending on the application as long as it has ultraviolet shielding performance and has required heat resistance, mechanical strength, solvent resistance, and the like in the production and molding steps. For example, the base film 2 can be shielded by ultraviolet rays. The material of the performance is made of a material mixed or synthesized from various polymers. Here, the ultraviolet shielding performance means a property of shielding or reducing the penetration of ultraviolet rays by absorbing or reflecting light having a wavelength of light of 200 nm or more and 380 nm or less.
作為紫外線遮蔽性能的指標，宜為i射線(波長365nm)的穿透率小於10%。因為在藉由紫外線硬化性樹脂形成凹凸時，有需要對於凹凸形成層1照射在500mJ/cm2以上1000mJ/cm2以下範圍內之光量的紫外線，此時，若對於所形成的硬塗層4在射出成形前照射大約100mJ/cm2以上的紫外線，則因交聯反應的進行而跟不上射出成形時的延伸，因而硬塗層4產生龜裂。 As an indicator of the ultraviolet shielding performance, the transmittance of the i-ray (wavelength 365 nm) is preferably less than 10%. When the unevenness is formed by the ultraviolet curable resin, it is necessary to irradiate the unevenness forming layer 1 with ultraviolet light having a light amount of 500 mJ/cm 2 or more and 1000 mJ/cm 2 or less. In this case, if the hard coat layer 4 is formed. When the ultraviolet ray of about 100 mJ/cm 2 or more is irradiated before the injection molding, the elongation at the time of injection molding cannot be prevented by the progress of the crosslinking reaction, and the hard coat layer 4 is cracked.
作為具有紫外線遮蔽性能的材料，能夠使用例如，以鋁為代表之金屬填料和氧化鈦、氧化鋅、氧化銫等的金屬氧化物、苯并三唑系紫外線吸收劑、二苯甲酮系紫外線吸收劑、氰基丙烯酸酯系紫外線吸收劑、水楊酸酯系紫外線吸收劑、草醯替苯胺(oxanilide)系紫外線吸收劑等的有機系紫外線吸收劑、碳黑等的有色顏料。其中，當需要凹凸形成層1的凹凸圖案和印刷層5位置對準時，適宜使用在可見光區域具有透明性的金屬氧化物和有機系紫外線吸收劑、或已共鍵結該等紫外線吸收劑的樹脂。 As a material having ultraviolet shielding properties, for example, a metal filler typified by aluminum and a metal oxide such as titanium oxide, zinc oxide or cerium oxide, a benzotriazole ultraviolet absorbing agent, and a benzophenone ultraviolet absorbing agent can be used. An organic ultraviolet absorber such as a cyanoacrylate ultraviolet ray absorbing agent, a salicylate ultraviolet absorbing agent, an oxanilide ultraviolet ray absorbing agent, or a colored pigment such as carbon black. Wherein, when the concave-convex pattern of the unevenness-forming layer 1 and the printed layer 5 are required to be aligned, it is preferable to use a metal oxide having transparency in the visible light region and an organic ultraviolet absorber, or a resin which has been bonded to the ultraviolet absorber. .
作為形成基膜2的材料，能夠列舉例如，聚酯系樹脂、聚醯胺系樹脂、聚烯烴系樹脂、乙烯基系樹脂、丙烯酸系樹脂、纖維素系樹脂等，惟，從耐熱性和機械強度的觀點來看，較佳使用例如，聚對苯二甲酸乙二酯、 聚萘二甲酸乙二酯等的聚酯系樹脂。其中特別從成本面來看亦以使用聚對苯二甲酸乙二酯為特佳。 Examples of the material for forming the base film 2 include a polyester resin, a polyamide resin, a polyolefin resin, a vinyl resin, an acrylic resin, a cellulose resin, and the like, but heat resistance and mechanical properties. From the viewpoint of strength, it is preferred to use, for example, polyethylene terephthalate, A polyester resin such as polyethylene naphthalate. Among them, polyethylene terephthalate is particularly preferred from the viewpoint of cost.
作為離型層3的材料，只要是具備所需要之離型性的樹脂，則無特別限制。關於第一實施形態的內模轉印箔，較佳使用例如經烯烴修飾之丙烯酸三聚氰胺樹脂、丙烯酸胺基甲酸酯樹脂。又，作為離型層3的形成方法，能夠使用例如熟知的印刷法、塗布法。 The material of the release layer 3 is not particularly limited as long as it is a resin having a desired release property. As the inner mold transfer foil of the first embodiment, for example, an olefin-modified melamine resin or an urethane urethane resin is preferably used. Further, as a method of forming the release layer 3, for example, a well-known printing method or coating method can be used.
硬塗層4係在轉印後將基膜2剝離時成為成形品的最表面層之層。作為硬塗層4的材料，能夠使用以紫外線硬化的紫外線硬化性樹脂，能夠列舉例如至少含有丙烯醯基或甲基丙烯醯基的樹脂等。只要為該等紫外線硬化性的硬塗層4，則能夠藉由紫外線照射而使成形品表面立即硬化，能夠提升成形品的生產效率。又，根據關於第一實施形態的模內轉印箔，由於硬塗層4在未硬化的狀態下成形，並於成形後經過完全硬化的步驟，所以能夠兼顧成形性提升和表面物性提升。又，作為硬塗層4的形成方法，能夠使用例如熟知的印刷法、塗布法。 The hard coat layer 4 is a layer which becomes the outermost layer of the molded article when the base film 2 is peeled off after the transfer. As the material of the hard coat layer 4, an ultraviolet curable resin which is cured by ultraviolet rays can be used, and examples thereof include a resin containing at least an acrylonitrile group or a methacrylonitrile group. When the ultraviolet curable hard coat layer 4 is used, the surface of the molded article can be immediately cured by ultraviolet irradiation, and the production efficiency of the molded article can be improved. Moreover, according to the in-mold transfer foil of the first embodiment, since the hard coat layer 4 is molded in an unhardened state and is completely cured after the molding, it is possible to achieve both improvement in formability and improvement in surface physical properties. Further, as a method of forming the hard coat layer 4, for example, a well-known printing method or coating method can be used.
作為印刷層5的材料，能夠使用例如含有適當顏色的顏料或染料作為著色劑的著色印墨。又，作為印刷層5的形成方法，能夠使用例如平版印刷法、凹版印刷法、網版印刷法、噴墨法等熟知的印刷法。其中， 特別從能夠多色印刷和層次展現而且適合大量生產的觀點來看，較佳為使用凹版印刷法進行印刷。又，為了提升與硬塗層4的密著性，亦可在印刷層5和硬塗層4之間設置固定層(未圖示)。作為固定層的形成方法，能夠使用例如凹版印刷法、網版印刷法等的印刷法，但是從膜厚、生產性的觀點來看，宜為使用凹版印刷法進行印刷。 As the material of the printing layer 5, for example, a colored ink containing a pigment or a dye of a suitable color as a coloring agent can be used. Further, as a method of forming the printed layer 5, a well-known printing method such as a lithography method, a gravure printing method, a screen printing method, or an inkjet method can be used. among them, In particular, from the viewpoint of being capable of multicolor printing and hierarchical display and being suitable for mass production, it is preferred to perform printing using a gravure printing method. Further, in order to improve the adhesion to the hard coat layer 4, a fixing layer (not shown) may be provided between the printed layer 5 and the hard coat layer 4. As a method of forming the fixed layer, a printing method such as a gravure printing method or a screen printing method can be used. However, from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method.
接著層6係將上述各層接著於成形品的表面者。作為接著層6的材料，能夠適當地使用適於成形樹脂7的感熱性或感壓性的樹脂。作為接著層6的形成方法，能夠使用例如凹版印刷法、網版印刷法等的印刷法，但是從膜厚、生產性的觀點來看，宜為使用凹版印刷法進行印刷。再者，在印刷層5相對於成形品具有充分接著性而具備作為接著層的效果之情況下，亦可不設置接著層6。 Next, the layer 6 is formed by adhering the above layers to the surface of the molded article. As the material of the adhesive layer 6, a resin suitable for the heat sensitivity or pressure resistance of the molding resin 7 can be suitably used. As a method of forming the adhesive layer 6, a printing method such as a gravure printing method or a screen printing method can be used. However, from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method. Further, when the printed layer 5 has sufficient adhesion to the molded article and has an effect as an adhesive layer, the adhesive layer 6 may not be provided.
在基膜2之與形成離型層3之面相反側之面上所設置之凹凸形成層1，係含有紫外線硬化性樹脂者，能夠藉由各種形成方法而形成。凹凸形成層1係能夠藉由例如所謂以UV厚塗印墨的網版印刷法、UV噴墨法；或者藉由以離型性凹凸膜和基膜夾住液狀紫外線硬化性樹脂，並從離型性凹凸膜側照射UV來硬化該液狀紫外線硬化性樹脂，然後將離型性凹凸膜剝離而於基膜2上設置凹凸形成層1的方法的形成方法而形成。 The unevenness-forming layer 1 provided on the surface of the base film 2 opposite to the surface on which the release layer 3 is formed is formed of an ultraviolet curable resin, and can be formed by various formation methods. The unevenness-forming layer 1 can be formed by, for example, a screen printing method in which a so-called ink is applied with a thick UV, a UV inkjet method, or a liquid ultraviolet curable resin is sandwiched between a release-type uneven film and a base film, and The release-type uneven film side is formed by a method of forming a method in which the liquid-like ultraviolet curable resin is cured by UV, and the release-type uneven film is peeled off to provide the unevenness-forming layer 1 on the base film 2.
又，作為凹凸形成層1的材料係能夠使用與硬塗層4相同的紫外線硬化性樹脂，亦能夠使用例如至少含有丙烯醯基或甲基丙烯醯基的樹脂等。 In addition, as the material of the unevenness forming layer 1, the same ultraviolet curable resin as the hard coat layer 4 can be used, and for example, a resin containing at least an acrylonitrile group or a methacrylonitrile group can be used.
根據該等使用紫外線硬化性樹脂的凹凸形成方法，與當使用熱硬化性樹脂時比較則凹凸形狀的再現性變良好，又能夠縮短製造時間。 According to the unevenness forming method using the ultraviolet curable resin, the reproducibility of the uneven shape is improved as compared with when the thermosetting resin is used, and the manufacturing time can be shortened.
以下，參照圖式並且說明關於第二實施形態之模內轉印箔的全體結構。 Hereinafter, the overall structure of the in-mold transfer foil of the second embodiment will be described with reference to the drawings.
第2圖所示之關於第二實施形態的模內轉印箔，係構成為具備基膜9，在基膜9之一面依序具備離型層3、包含紫外線硬化性樹脂的硬塗層4、和接著層6，並且在基膜9之另一面具備紫外線遮蔽層10、和由紫外線硬化性樹脂所構成的凹凸形成層1。再者，在硬塗層4和接著層6之間亦可形成固定層、以有色印墨所形成的加飾層、金屬蒸鍍層等，第2圖係例示有形成有印刷層5的情況。以下詳細說明上述各層。 The in-mold transfer foil of the second embodiment shown in Fig. 2 is provided with a base film 9, and a release layer 3 and a hard coat layer 4 containing an ultraviolet curable resin are provided on one surface of the base film 9 in this order. And the adhesion layer 6 and the other surface of the base film 9 are provided with the ultraviolet shielding layer 10 and the unevenness formation layer 1 which consists of ultraviolet-curable resin. Further, a fixing layer, a decorative layer formed of a colored ink, a metal deposition layer, and the like may be formed between the hard coat layer 4 and the adhesive layer 6, and FIG. 2 illustrates a case where the printed layer 5 is formed. The above layers will be described in detail below.
作為基膜9，只要在製造及成形步驟中具有所需要的耐熱性、機械強度、耐溶劑性等，則能夠根據用途而使用各種材料。作為形成基膜9的材料，能夠舉例聚酯系樹脂、聚醯胺系樹脂、聚烯烴系樹脂、乙烯基系樹脂、丙烯酸系樹脂、纖維素系樹脂等，但是從耐熱性、機械強度的觀點來看，以使用例如聚對苯二甲酸乙二酯、聚萘二甲酸乙二酯等的聚酯系樹脂為佳。其中特別從成本面來看，亦以使用聚對苯二甲酸乙二酯為特佳。 As the base film 9, as long as it has required heat resistance, mechanical strength, solvent resistance, and the like in the production and molding steps, various materials can be used depending on the application. Examples of the material for forming the base film 9 include a polyester resin, a polyamide resin, a polyolefin resin, a vinyl resin, an acrylic resin, a cellulose resin, and the like, but from the viewpoint of heat resistance and mechanical strength. It is preferable to use a polyester resin such as polyethylene terephthalate or polyethylene naphthalate. Among them, polyethylene terephthalate is particularly preferred from the viewpoint of cost.
作為離型層3的材料，只要為具備所需要之離型性的樹脂，則無特別限制。關於第二實施形態之模內轉印箔，係以使用例如經烯烴修飾的丙烯酸三聚氰胺樹脂、丙烯酸胺基甲酸酯樹脂為佳。又，作為離型層3的形成方法，能夠使用例如熟知的印刷法、塗布法。 The material of the release layer 3 is not particularly limited as long as it is a resin having a desired release property. The in-mold transfer foil of the second embodiment is preferably an acrylic acid melamine resin or an urethane urethane resin modified with an olefin. Further, as a method of forming the release layer 3, for example, a well-known printing method or coating method can be used.
硬塗層4係在轉印後將基膜9剝離時，成為成形品的最表面層之層。作為硬塗層4的材料係能夠使用以紫外線硬化的紫外線硬化性樹脂，能夠舉例至少含有丙烯醯基或甲基丙烯醯基的樹脂等。只要為該等紫外線硬化性的硬塗層4，能夠藉由紫外線照射而使成形品表面立即硬化，能夠提升成形品的生產效率。又，根據關於第二實施形態的模內轉印箔，由於硬塗層4在未硬化的狀態下成形並在成形後經過完全硬化的步驟，所以能夠兼顧成形性提升和表面物性提升。又，作為硬塗層4的形成方法，能夠使用例如熟知的印刷法、塗布法。 The hard coat layer 4 is a layer of the outermost layer of the molded article when the base film 9 is peeled off after the transfer. As the material of the hard coat layer 4, an ultraviolet curable resin which is cured by ultraviolet rays can be used, and a resin containing at least an acrylonitrile group or a methacrylonitrile group can be exemplified. When the ultraviolet curable hard coat layer 4 is used, the surface of the molded article can be immediately cured by ultraviolet irradiation, and the production efficiency of the molded article can be improved. Moreover, according to the in-mold transfer foil of the second embodiment, since the hard coat layer 4 is formed in an unhardened state and is completely cured after molding, it is possible to achieve both improvement in formability and improvement in surface physical properties. Further, as a method of forming the hard coat layer 4, for example, a well-known printing method or coating method can be used.
作為印刷層5的材料，能夠使用例如含有適當顏色的顏料或染料作為著色劑的著色印墨。又，作為印刷層5的形成方法，能夠使用例如平版印刷法、凹版印刷法、網版印刷法、噴墨法等熟知的印刷法。其中，特別從能夠多色印刷和層次展現並且適合大量生產的觀點來看，較佳為使用凹版印刷法進行印刷。又，為了提升與硬塗層4的密著性，亦可於印刷層5和硬塗層4之 間設置固定層(未圖示)。作為固定層的形成方法，能夠使用例如凹版印刷法、網版印刷法等的印刷法，但是從膜厚和生產性的觀點來看，宜為使用凹版印刷法進行印刷。 As the material of the printing layer 5, for example, a colored ink containing a pigment or a dye of a suitable color as a coloring agent can be used. Further, as a method of forming the printed layer 5, a well-known printing method such as a lithography method, a gravure printing method, a screen printing method, or an inkjet method can be used. Among them, in particular, from the viewpoint of being capable of multicolor printing and hierarchical display and being suitable for mass production, printing by gravure printing is preferred. Moreover, in order to improve the adhesion to the hard coat layer 4, it is also possible to apply the printed layer 5 and the hard coat layer 4. A fixed layer (not shown) is provided. As a method of forming the anchor layer, a printing method such as a gravure printing method or a screen printing method can be used, but from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method.
接著層6係將上述各層接著於成形品的表面者。作為接著層6的材料。能夠適宜地使用適於成形樹脂7的感熱性或感壓性的樹脂。作為接著層6的形成方法，能夠使用例如凹版印刷法、網版印刷法等的印刷法，但是從膜厚和生產性的觀點來看，宜為使用凹版印刷法進行印刷。再者，在印刷層5相對於成形品具有足夠接著性而具有作為接著層的效果之情況下，亦可不設置接著層6。 Next, the layer 6 is formed by adhering the above layers to the surface of the molded article. As the material of the adhesive layer 6. A resin suitable for the heat sensitivity or pressure resistance of the molding resin 7 can be suitably used. As a method of forming the adhesive layer 6, a printing method such as a gravure printing method or a screen printing method can be used, but from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method. Further, in the case where the printed layer 5 has sufficient adhesion to the molded article and has an effect as an adhesive layer, the adhesive layer 6 may not be provided.
作為在基膜9之與形成離型層3之面的反側面上所設置之的紫外線遮蔽層10，係具有與基膜9及凹凸形成層1之密著性的材料，能夠使用具有能夠藉由將光波長為200nm以上380nm以下之範圍內的光吸收或反射而遮蔽或減少紫外線穿透之性能的材料。 The ultraviolet shielding layer 10 provided on the reverse side surface of the base film 9 and the surface on which the release layer 3 is formed is a material having adhesion to the base film 9 and the unevenness forming layer 1, and can be used. A material that shields or reduces the performance of ultraviolet light transmission by absorbing or reflecting light having a wavelength of light of 200 nm or more and 380 nm or less.
作為該等具有紫外線遮蔽性能的材料，能夠使用例如以鋁為代表的金屬填料和氧化鈦、氧化鋅、氧化銫等的金屬氧化物、苯并三唑系紫外線吸收劑、二苯甲酮系紫外線吸收劑、氰基丙烯酸酯系紫外線吸收劑、水楊酸酯系紫外線吸收劑、草醯替苯胺系紫外線吸收劑等的有機系紫外線吸收劑、碳黑等的有色顏料。其中，當需要 將凹凸形成層1的凹凸圖案和印刷層5位置對準時，適宜使用在可見光區域具有透明性的金屬氧化物、有機系紫外線吸收劑、或已共鍵結該等紫外線吸收劑的樹脂。 As such a material having ultraviolet shielding properties, for example, a metal filler typified by aluminum, a metal oxide such as titanium oxide, zinc oxide or cerium oxide, a benzotriazole ultraviolet absorbing agent, or a benzophenone ultraviolet ray can be used. An organic ultraviolet absorber such as an absorbent, a cyanoacrylate ultraviolet absorber, a salicylate ultraviolet absorber, a oxalicone-based ultraviolet absorber, or a colored pigment such as carbon black. Which, when needed When the uneven pattern of the uneven layer 1 and the printed layer 5 are aligned, a metal oxide having transparency in the visible light region, an organic ultraviolet absorber, or a resin in which the ultraviolet absorbers are bonded together is preferably used.
但是，紫外線吸收劑通常大多為低分子之情形，所以擔心遷移至凹凸形成層1。若造成紫外線吸收劑的遷移，則凹凸形成時的UV硬化變得不足，會引起例如凹凸形成層1的密著不良和沾黏結塊(blocking)、因射出成形時的熱所導致的凹凸形狀變形。 However, since the ultraviolet absorber is usually in a low molecular form, it is feared that it migrates to the uneven layer 1 . When the migration of the ultraviolet absorber is caused, the UV curing at the time of the formation of the unevenness is insufficient, and the adhesion of the unevenness-forming layer 1 and the blocking and the deformation of the uneven shape due to the heat during the injection molding are caused. .
因此，作為使用於紫外線遮蔽層10的樹脂，以在分子內具有紫外線吸收性官能基之聚合物(紫外線吸收性聚合物)的使用為佳。具體而言，能夠使用苯并三唑型丙烯酸系紫外線吸收聚合物等。再者，從和基膜9及凹凸形成層1之密著性的觀點來看，作為紫外線遮蔽層10的材料，以具有羥基及紫外線吸收性官能基的丙烯酸聚合物與異氰酸酯化合物所形成的硬化物為佳。 Therefore, as the resin used for the ultraviolet shielding layer 10, a polymer (ultraviolet absorbing polymer) having an ultraviolet absorbing functional group in a molecule is preferably used. Specifically, a benzotriazole type acrylic ultraviolet absorbing polymer or the like can be used. Further, from the viewpoint of adhesion to the base film 9 and the uneven layer 1 , the material of the ultraviolet shielding layer 10 is hardened by an acrylic polymer having a hydroxyl group and an ultraviolet absorbing functional group and an isocyanate compound. Things are better.
因而紫外線遮蔽層10的材料為雙液硬化系丙烯酸樹脂，不僅耐射出成形時的熱變形，並且因和凹凸形成層1之親和性高而提高密著性。再者，異氰酸酯化合物由於即使在基膜9的表面亦會進行反應而形成共價鍵，故亦能夠確保和基膜9的密著性。 Therefore, the material of the ultraviolet shielding layer 10 is a two-liquid curing acrylic resin, which not only resists thermal deformation during injection molding, but also has high affinity with the unevenness forming layer 1 to improve adhesion. Further, since the isocyanate compound forms a covalent bond even upon reaction on the surface of the base film 9, the adhesion to the base film 9 can be ensured.
其中，所謂異氰酸酯化合物係指例如甲苯二異氰酸酯(TDI)、二苯基甲烷二異氰酸酯(MDI)、苯二甲基二異氰酸酯(XDI)、六亞甲基二異氰酸酯(HDI)、異佛酮二異氰酸酯(IPDI)及該等的預聚物。 Here, the isocyanate compound means, for example, toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), benzodimethyl diisocyanate (XDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate. (IPDI) and such prepolymers.
作為紫外線遮蔽性能的指標，宜為i射線(波長365nm)的穿透率小於10%。因為在藉由紫外線硬化性樹脂形成凹凸時，有需要對於凹凸形成層1照射在500mJ/cm2以上1000mJ/cm2以下範圍內之光量的紫外線，此時若對於所形成的硬塗層4在射出成形前照射大約100mJ/cm2以上的紫外線，則因交聯反應的進行而跟不上射出成形時的延伸，因而硬塗層4產生龜裂。 As an indicator of the ultraviolet shielding performance, the transmittance of the i-ray (wavelength 365 nm) is preferably less than 10%. When the unevenness is formed by the ultraviolet curable resin, it is necessary to irradiate the unevenness forming layer 1 with ultraviolet light having a light amount of 500 mJ/cm 2 or more and 1000 mJ/cm 2 or less, in which case, for the formed hard coat layer 4 When the ultraviolet ray of about 100 mJ/cm 2 or more is irradiated before the injection molding, the elongation of the injection molding does not follow the elongation at the time of injection molding, and the hard coat layer 4 is cracked.
凹凸形成層1係包含紫外線硬化性樹脂者，能夠藉由各種形成方法來形成。凹凸形成層1係能夠藉由例如以UV厚塗印墨的網版印刷法和UV噴墨法；或者以離型性凹凸膜與基膜9夾住液狀紫外線硬化性樹脂並從離型性凹凸膜側照射UV來硬化該液狀紫外線硬化性樹脂，然後藉由剝離離型性凹凸膜來設置凹凸形成層1於基膜9的方法的形成方法來形成。 The unevenness forming layer 1 includes an ultraviolet curable resin, and can be formed by various forming methods. The unevenness-forming layer 1 can be obtained by, for example, a screen printing method and a UV inkjet method in which ink is applied with a thick UV coating; or a liquid ultraviolet curable resin is sandwiched between the release-type uneven film and the base film 9 and from the release property. The surface of the uneven film is irradiated with UV to cure the liquid ultraviolet curable resin, and then formed by a method of forming the uneven film forming layer 1 on the base film 9 by peeling off the release uneven film.
又，作為凹凸形成層1的材料，能夠使用與硬塗層4相同的紫外線硬化性樹脂，並能夠使用例如至少含有丙烯醯基或甲基丙烯醯基的樹脂等。 In addition, as the material of the uneven layer forming layer 1, the same ultraviolet curable resin as the hard coat layer 4 can be used, and for example, a resin containing at least an acrylonitrile group or a methacrylium group can be used.
根據該等使用紫外線硬化性樹脂的凹凸形成方法，與使用熱硬化性樹脂時比較則凹凸形狀的再現性良好，又能夠縮短製造時間。 According to the unevenness forming method using the ultraviolet curable resin, the reproducibility of the uneven shape is improved as compared with the case of using the thermosetting resin, and the manufacturing time can be shortened.
以下，參照圖式並且說明關於第三實施形態之模內轉印箔的全體結構。 Hereinafter, the overall structure of the in-mold transfer foil according to the third embodiment will be described with reference to the drawings.
第3圖所示之關於第三實施形態的模內轉印箔，係構成為具備基膜9，在基膜9之一面依序具備紫外線遮蔽層11、離型層3、包含紫外線硬化性樹脂的硬塗層4、與接著層6，並且在基膜9之另一面具備由紫外線硬化性樹脂所構成的凹凸形成層1。再者，亦可在硬塗層4和接著層6之間形成有固定層、藉由有色印墨所形成的加飾層、金屬蒸鍍層等，第3圖係例示有形成有印刷層5的情況。以下詳細說明上述各層。 The in-mold transfer foil of the third embodiment shown in Fig. 3 is provided with a base film 9, and the ultraviolet shielding layer 11 and the release layer 3 are provided on one surface of the base film 9 in order, and the ultraviolet curable resin is contained. The hard coat layer 4 and the adhesive layer 6 are provided on the other surface of the base film 9 with the unevenness forming layer 1 composed of an ultraviolet curable resin. Further, a fixing layer, a decorative layer formed by a colored ink, a metal deposition layer, and the like may be formed between the hard coat layer 4 and the adhesive layer 6, and FIG. 3 illustrates that the printed layer 5 is formed. Happening. The above layers will be described in detail below.
作為基膜9，只要在製造及成形步驟中具有所需要的耐熱性、機械強度、耐溶劑性等，則能夠根據用途來適用各種材料。作為形成基膜9的材料，能夠舉例聚酯系樹脂、聚醯胺系樹脂、聚烯烴系樹脂、乙烯基系樹脂、丙烯酸系樹脂、纖維素系樹脂等，但是從耐熱性和機械強度的觀點來看，以使用聚對苯二甲酸乙二酯、聚萘二甲酸乙二酯等的聚酯系樹脂為佳。其中特別從成本面來看，亦以使用聚對苯二甲酸乙二酯為特佳。 The base film 9 can be applied to various materials depending on the application as long as it has required heat resistance, mechanical strength, solvent resistance, and the like in the production and molding steps. Examples of the material for forming the base film 9 include a polyester resin, a polyamide resin, a polyolefin resin, a vinyl resin, an acrylic resin, a cellulose resin, and the like, but from the viewpoint of heat resistance and mechanical strength. It is preferable to use a polyester resin such as polyethylene terephthalate or polyethylene naphthalate. Among them, polyethylene terephthalate is particularly preferred from the viewpoint of cost.
作為紫外線遮蔽層11，其係具有與基膜9及離型層3之密著性的材料，能夠使用具有能夠藉由將光波長為200nm以上380nm以下之範圍內的光吸收或反射而遮蔽或減少紫外線穿透之性能的材料。 The ultraviolet shielding layer 11 is a material having adhesion to the base film 9 and the release layer 3, and can be shielded by being able to absorb or reflect light having a wavelength of 200 nm or more and 380 nm or less. A material that reduces the performance of UV penetration.
作為該等具有紫外線遮蔽能的材料，能夠使用例如以鋁為代表的金屬填料和氧化鈦、氧化鋅、氧化銫等的金屬氧化物、苯并三唑系紫外線吸收劑、二苯甲酮系紫 外線吸收劑、氰基丙烯酸酯系紫外線吸收劑、水楊酸酯系紫外線吸收劑、草醯替苯胺系紫外線吸收劑等的有機系紫外線吸收劑、碳黑等的有色顏料。其中，當需要將凹凸形成層1的凹凸圖案和印刷層5位置對準時，適宜使用在可見光區域具有透明性的金屬氧化物和有機系紫外線吸收劑、或已共鍵結該等紫外線吸收劑的樹脂。 As such a material having ultraviolet shielding energy, for example, a metal filler typified by aluminum, a metal oxide such as titanium oxide, zinc oxide or cerium oxide, a benzotriazole ultraviolet absorbing agent, or a benzophenone violet can be used. An organic ultraviolet absorber such as an external absorbent, a cyanoacrylate ultraviolet absorber, a salicylate ultraviolet absorber, a oxalic acid-based ultraviolet absorber, or a colored pigment such as carbon black. When it is necessary to align the concave-convex pattern of the unevenness-forming layer 1 with the printed layer 5, it is preferable to use a metal oxide having a transparency in the visible light region and an organic ultraviolet absorber, or a UV-absorbing agent that has been bonded to the ultraviolet absorber. Resin.
但是，紫外線吸收劑通常大多為低分子之情形，於模內轉印箔的製造步驟中紫外線吸收劑會遷移至其它層而可能造成缺陷。例如若遷移至硬塗層4則造成硬化不佳。又，因為遷移到接著層6而在表面滲出，則可能產生與成形樹脂的密著不佳。又，由於在射出成形時的樹脂溫度範圍(200℃~300℃)會成為液狀，所以有可能會導致在閘口附近的印花圖案流失(washout)。 However, the ultraviolet absorber is usually mostly in the case of a low molecular weight, and the ultraviolet absorber may migrate to other layers in the manufacturing step of the in-mold transfer foil to cause defects. For example, if it migrates to the hard coat layer 4, it causes poor hardening. Further, since it migrates to the surface of the adhesive layer 6 and bleeds out on the surface, adhesion to the molding resin may be poor. Further, since the resin temperature range (200 ° C to 300 ° C) at the time of injection molding is liquid, there is a possibility that the print pattern near the gate is washed out.
因此作為使用於紫外線遮蔽層11的樹脂，以在分子內具有紫外線吸收性官能基之聚合物(紫外線吸收性聚合物)的使用為佳。具體而言，能夠使用苯并三唑型丙烯酸系紫外線吸收聚合物等。再者，從與基膜9及離型層3之密著性的觀點來看，作為紫外線遮蔽層11的材料，以具有羥基及紫外線吸收性官能基的丙烯酸聚合物和異氰酸酯化合物所形成的硬化物為佳。 Therefore, as the resin used for the ultraviolet shielding layer 11, a polymer (ultraviolet absorbing polymer) having an ultraviolet absorbing functional group in a molecule is preferably used. Specifically, a benzotriazole type acrylic ultraviolet absorbing polymer or the like can be used. Further, from the viewpoint of adhesion to the base film 9 and the release layer 3, the material of the ultraviolet shielding layer 11 is hardened by an acrylic polymer having an hydroxyl group and an ultraviolet absorbing functional group and an isocyanate compound. Things are better.
因而紫外線遮蔽層11的材料為雙液硬化系丙烯酸樹脂，不僅射出成形時耐熱變形，並且因與離型層3(丙烯酸系樹脂)的親和性高而提高密著性。再者，異氰酸酯化合物由於與基膜9的表面及離型層3所包含的羥基反應而形成共價鍵，亦能夠確保和各層的密著性。 Therefore, the material of the ultraviolet shielding layer 11 is a two-liquid curing acrylic resin, which not only thermally deforms during injection molding, but also has high affinity with the release layer 3 (acrylic resin) to improve adhesion. Further, the isocyanate compound forms a covalent bond by reacting with the surface of the base film 9 and the hydroxyl group contained in the release layer 3, and the adhesion to each layer can be ensured.
其中所謂異氰酸酯化合物，係指例如甲苯二異氰酸酯(TDI)、二苯基甲烷二異氰酸酯(MDI)、苯二甲基二異氰酸酯(XDI)、六亞甲基二異氰酸酯(HDI)、異佛酮二異氰酸酯(IPDI)及該等的預聚物。 The term "isocyanate compound" as used herein means, for example, toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), benzodimethyl diisocyanate (XDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate. (IPDI) and such prepolymers.
作為紫外線遮蔽性能的指標，宜為i射線(波長365nm)的穿透率小於10%。因為在藉由紫外線硬化性樹脂形成凹凸時，有需要對於凹凸形成層1照射在500mJ/cm2以上1000mJ/cm2以下範圍內之累積光量的紫外線，此時若對於所形成的硬塗層4在射出成形前照射大約100mJ/cm2以上的紫外線，則因交聯反應的進行而跟不上射出成形時的延伸，因而硬塗層4產生龜裂。 As an indicator of the ultraviolet shielding performance, the transmittance of the i-ray (wavelength 365 nm) is preferably less than 10%. When the unevenness is formed by the ultraviolet curable resin, it is necessary to irradiate the unevenness forming layer 1 with ultraviolet light having a cumulative amount of light in a range of 500 mJ/cm 2 or more and 1000 mJ/cm 2 or less, in which case, for the formed hard coat layer 4 When the ultraviolet ray of about 100 mJ/cm 2 or more is irradiated before the injection molding, the elongation at the time of injection molding cannot be prevented by the progress of the crosslinking reaction, and the hard coat layer 4 is cracked.
作為離型層3的材料，只要為具備所需要之離型性的樹脂，則無特別限制。關於第三實施形態的模內轉印箔，係以使用例如經烯烴修飾之丙烯酸三聚氰胺樹脂和丙烯酸胺基甲酸酯樹脂為佳。又作為離型層3的形成方法，能夠使用例如熟知的印刷法、塗布法。 The material of the release layer 3 is not particularly limited as long as it is a resin having a desired release property. Regarding the in-mold transfer foil of the third embodiment, it is preferred to use, for example, an olefin-modified melamine resin and an urethane acrylate resin. Further, as a method of forming the release layer 3, for example, a well-known printing method or coating method can be used.
硬塗層4係在轉印後將基膜2剝離時，成為成形品的最表面層之層。作為硬塗層4的材料係能夠使用以紫外線硬化的紫外線硬化性樹脂，能夠舉例至少含有丙烯醯基或甲基丙烯醯基的樹脂等。只要為該等紫外線硬化性的硬塗層4，則能夠藉由紫外線照射而使成形品表面立即硬化，並能夠提升成形品的生產效率。又根據關於第三實施形態的模內轉印箔，由於硬塗層4在未 硬化的狀態下成形而於成形後經過完全硬化的步驟，所以能夠兼顧成形性提升和表面物性提升。又作為硬塗層4的形成方法，能夠使用例如熟知的印刷法、塗布法。 The hard coat layer 4 is a layer of the outermost layer of the molded article when the base film 2 is peeled off after the transfer. As the material of the hard coat layer 4, an ultraviolet curable resin which is cured by ultraviolet rays can be used, and a resin containing at least an acrylonitrile group or a methacrylonitrile group can be exemplified. When the ultraviolet curable hard coat layer 4 is used, the surface of the molded article can be immediately cured by ultraviolet irradiation, and the production efficiency of the molded article can be improved. According to the in-mold transfer foil of the third embodiment, since the hard coat layer 4 is not Since it is formed in a hardened state and is completely cured after molding, it is possible to achieve both improvement in formability and improvement in surface physical properties. Further, as a method of forming the hard coat layer 4, for example, a well-known printing method or coating method can be used.
作為印刷層5的材料，能夠使用例如含有適當顏色的顏料或染料作為著色劑的著色印墨。又，作為印刷層5的形成方法，能夠使用例如平版印刷法、凹版印刷法、網版印刷法、噴墨法等熟知的印刷法。其中特別從能夠多色印刷和層次展現而且適合大量生產的觀點來看，較佳為使用凹版印刷法進形行印刷。又，為了提升與硬塗層4的密著性，亦可在印刷層5和硬塗層4之間設置固定層(未圖示)。作為固定層的形成方法，能夠使用例如凹版印刷法、網版印刷法等的印刷法，但是從膜厚和生產性的觀點來看，宜為使用凹版印刷法進行印刷。 As the material of the printing layer 5, for example, a colored ink containing a pigment or a dye of a suitable color as a coloring agent can be used. Further, as a method of forming the printed layer 5, a well-known printing method such as a lithography method, a gravure printing method, a screen printing method, or an inkjet method can be used. Among them, in particular, from the viewpoint of being capable of multicolor printing and hierarchical display and being suitable for mass production, it is preferable to carry out printing using gravure printing. Further, in order to improve the adhesion to the hard coat layer 4, a fixing layer (not shown) may be provided between the printed layer 5 and the hard coat layer 4. As a method of forming the anchor layer, a printing method such as a gravure printing method or a screen printing method can be used, but from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method.
接著層6係將上述各層接著於成形品的表面者。作為接著層6的材料，能夠適當地使用適於成形樹脂7的感熱性或感壓性的樹脂。作為接著層6的形成方法，能夠使用凹版印刷法、網版印刷法等的印刷法，但是從膜厚和生產性的觀點來看，宜為使用凹版印刷法進行印刷。再者，當印刷層5相對於成形品具有充分接著性而具有作為接著層的效果時，亦可不設置接著層6。 Next, the layer 6 is formed by adhering the above layers to the surface of the molded article. As the material of the adhesive layer 6, a resin suitable for the heat sensitivity or pressure resistance of the molding resin 7 can be suitably used. As a method of forming the adhesive layer 6, a printing method such as a gravure printing method or a screen printing method can be used. However, from the viewpoint of film thickness and productivity, it is preferable to perform printing using a gravure printing method. Further, when the printed layer 5 has sufficient adhesion to the molded article and has an effect as an adhesive layer, the adhesive layer 6 may not be provided.
在基膜9之與形成離型層3之面相反側之面上所設置之凹凸形成層1，係含有紫外線硬化性樹脂者，能夠藉由各種形成方法來形成。凹凸形成層1係能夠藉由例如所謂以UV厚塗印墨的網版印刷法和UV噴墨法；或者藉由以離型性凹凸膜和基膜夾住液狀紫外線硬化性樹脂，並從離型性凹凸膜側照射UV來硬化該液狀紫外線硬化性樹脂，然後將離型性凹凸膜剝離而於基膜9上設置凹凸形成層1的方法的形成方法來形成。 The unevenness-forming layer 1 provided on the surface of the base film 9 opposite to the surface on which the release layer 3 is formed is an ultraviolet curable resin, and can be formed by various formation methods. The unevenness-forming layer 1 can be formed by, for example, a screen printing method and a UV inkjet method in which a so-called ink is thickly coated with UV; or by sandwiching a liquid ultraviolet curable resin with a release-type uneven film and a base film, and The release-type uneven film side is formed by a method of forming a method of curing the liquid ultraviolet curable resin by UV, and then peeling off the release-type uneven film and providing the unevenness-forming layer 1 on the base film 9.
又，作為凹凸形成層1的材料係能夠使用與硬塗層4相同的紫外線硬化性樹脂，亦能夠使用例如至少含有丙烯醯基或甲基丙烯醯基的樹脂等。 In addition, as the material of the unevenness forming layer 1, the same ultraviolet curable resin as the hard coat layer 4 can be used, and for example, a resin containing at least an acrylonitrile group or a methacrylonitrile group can be used.
根據該等使用紫外線硬化性樹脂的凹凸形成方法，與當使用熱硬化性樹脂時比較則凹凸形狀的再現性變良好，又能夠縮短製造時間。 According to the unevenness forming method using the ultraviolet curable resin, the reproducibility of the uneven shape is improved as compared with when the thermosetting resin is used, and the manufacturing time can be shortened.
關於第一至第三的各實施形態的模內轉印箔，係藉由從基膜2、9之形成凹凸形成層1之面側進行用於交聯硬化凹凸形成層1的紫外線照射所製造。其中各關於實施形態之模內轉印箔的製造方法，若為從基膜2、9之形成凹凸形成層1之面側實施上述紫外線照射則無所謂實施的順序。換言之，亦可在將上述各層全部積層後，從基膜2、9之形成凹凸形成層1之面側進行用於交聯硬化凹凸形成層1的紫外線照射來製造各關於實施形態的模內轉印箔。或者亦可在從基膜2、9之形成凹凸 形成層1之面側進行用於交聯硬化凹凸形成層1的紫外線照射後，積層離型層3、硬塗層4、印刷層5、接著層6來製造各關於實施形態的模內轉印箔。 The in-mold transfer foil of each of the first to third embodiments is manufactured by ultraviolet irradiation for crosslinking and curing the unevenness-forming layer 1 from the surface side of the base film 2 and 9 on which the unevenness-forming layer 1 is formed. . In the method for producing the in-mold transfer foil of the embodiment, the ultraviolet irradiation is performed on the surface side of the base film 2 and 9 on which the uneven layer 1 is formed. In other words, after all the layers are laminated, the ultraviolet irradiation of the crosslinked-hardened uneven layer 1 can be performed from the surface side of the base film 2, 9 on which the uneven layer 1 is formed, and the in-mold rotation of each embodiment can be produced. Printed foil. Or it may be formed in the base film 2, 9 After the ultraviolet irradiation of the crosslinked hardened uneven layer 1 is performed on the surface side of the layer 1, the release layer 3, the hard coat layer 4, the printed layer 5, and the adhesive layer 6 are laminated to manufacture each of the in-mold transfer of the embodiment. Foil.
如上述積層各層來製備關於第一至第三之各實施形態的模內轉印箔。能夠藉由使用該等模內轉印箔來進行模內射出成形，製造表面具有凹凸形狀的成形品。 The in-mold transfer foils of the respective first to third embodiments were prepared as described above. In-mold injection molding can be carried out by using these in-mold transfer foils, and a molded article having a concave-convex shape on its surface can be produced.
再者，在第一至第三的各實施形態中，雖然顯示有在硬塗層4和接著層6之間具有既定花樣圖案的印刷層5的情況，但除了印刷層5之外，亦可有例如鋁、錫、銦、鉻等的金屬蒸鍍層和氧化鈦、硫化鋅等的透明反射層、多層反射膜、或藉由熱壓壓花等所設置的全像圖(hologram)等的壓花(emboss)層。 Further, in each of the first to third embodiments, the printed layer 5 having a predetermined pattern between the hard coat layer 4 and the adhesive layer 6 is displayed, but in addition to the printed layer 5, There are, for example, a metal deposition layer of aluminum, tin, indium, or chromium, and a transparent reflection layer of titanium oxide or zinc sulfide, a multilayer reflection film, or a hologram provided by hot pressing or the like. Flower (emboss) layer.
以下，參照第4圖及第5圖並詳細說明使用模內轉印箔之模內射出成形的步驟。再者，其中舉例說明關於第一實施形態的模內轉印箔。 Hereinafter, the step of in-mold injection molding using an in-mold transfer foil will be described in detail with reference to FIGS. 4 and 5. Further, an in-mold transfer foil according to the first embodiment will be exemplified.
模內射出成形係以首先將模內轉印箔插入至射出成形用模具8內，藉由從模內轉印箔之印刷層5側將成形樹脂7射出成形於射出成形用模具8的模腔內，而在成形樹脂7的表面轉印模內轉印箔。隨後，將所射出之成形樹脂7冷卻後，打開射出成形用模具8並將模內轉印箔的基膜2及離型層3剝離而取出成形品之熟知的順序進行。 In the in-mold injection molding system, the in-mold transfer foil is first inserted into the injection molding die 8, and the molding resin 7 is injected and molded into the cavity of the injection molding die 8 from the printing layer 5 side of the in-mold transfer foil. Inside, the in-mold transfer foil is transferred onto the surface of the molding resin 7. Then, after the injection molding resin 7 is cooled, the injection molding die 8 is opened, and the base film 2 and the release layer 3 of the in-mold transfer foil are peeled off, and the molded article is taken out in a well-known manner.
在將成形樹脂7射出於射出成形用模具8的模腔內時，藉由施加壓力於已插入射出成形用模具8內 的模內轉印箔，在基膜2及轉印層(例如離型層3、硬塗層4、印刷層5、接著層6)產生對應於已設置於該模內轉印箔之凹凸形成層1的形狀的變形(參照第4圖)。該結果為，在打開射出成形用模具8並取出成形品時，成為在成形品的加飾層(例如印刷層5)側的表面，賦予對應凹凸形成層1之圖案的凹凸形狀(參照第5圖)。從而製造賦予凹凸形狀的成形品。 When the molding resin 7 is injected into the cavity of the injection molding die 8, the pressure is applied to the inserted injection molding die 8 by applying pressure. The in-mold transfer foil is formed on the base film 2 and the transfer layer (for example, the release layer 3, the hard coat layer 4, the printed layer 5, and the subsequent layer 6) corresponding to the unevenness formed on the transfer foil of the mold. The shape of the layer 1 is deformed (see Fig. 4). As a result, when the injection molding die 8 is opened and the molded article is taken out, the surface of the decorative layer (for example, the printing layer 5) on the molded article is provided with a concavo-convex shape corresponding to the pattern of the unevenness forming layer 1 (see the fifth Figure). Thus, a molded article imparting a concave-convex shape is produced.
最後，對該成形品表面照射紫外線，將硬塗層4完全硬化。 Finally, the surface of the molded article is irradiated with ultraviolet rays to completely harden the hard coat layer 4.
經過以上步驟，製造上述使用各關於實施形態之模內轉印箔的加飾成形品。 Through the above steps, the above-mentioned decorative molded article using the in-mold transfer foil of each embodiment is manufactured.
以下，雖然根據實施例來詳細說明本發明，但是本發明並非僅由以下實施例所限制者。 Hereinafter, the present invention will be described in detail based on the examples, but the present invention is not limited by the following examples.
使用具有紫外線吸收性之聚對苯二甲酸乙二酯樹脂膜(帝人杜邦薄膜製HB)作為具有紫外線遮蔽性能的基膜，於該基膜上形成三聚氰胺樹脂系離型層、紫外線硬化性的丙烯酸樹脂系硬塗層。然後使用胺基甲酸酯系印墨作為印刷層、丙烯酸系樹脂作為接著層，以凹版印刷法來形成各層。 A polyethylene terephthalate resin film (HB made by Teijin DuPont Film) having ultraviolet absorbing property is used as a base film having ultraviolet shielding properties, and a melamine resin release layer and ultraviolet curable acrylic acid are formed on the base film. Resin is a hard coat. Then, each layer was formed by a gravure printing method using a urethane-based ink as a printing layer and an acrylic resin as an adhesive layer.
隨後在基膜之與離型層形成面的反側面上，使用帝國印墨製紫外線硬化性樹脂(UVFIX網版印墨)作為凹凸形成層，藉由網版印刷法來形成凹凸。然後，從形成凹凸形成層之面側照射紫外線(高壓水銀燈 累積光量 800mJ/cm2)，並使凹凸形成層交聯硬化，而獲得實施例1的模內轉印箔。 Then, on the reverse side surface of the base film and the release layer forming surface, an ultraviolet ink curable resin (UVFIX screen printing ink) made of Imperial ink was used as the unevenness forming layer, and irregularities were formed by a screen printing method. Then, ultraviolet rays were irradiated from the surface side on which the unevenness-forming layer was formed (high-pressure mercury lamp accumulated light amount: 800 mJ/cm 2 ), and the unevenness-forming layer was cross-linked and hardened to obtain the in-mold transfer foil of Example 1.
將該模內轉印箔插入射出成形用模具內並進行合模，而將PC(聚碳酸酯)/ABS(丙烯腈‧丁二烯‧苯乙烯)樹脂進行射出成形。然後，冷卻後，將射出成形用模具打開，並將模內轉印箔的基膜和離型層一起從成形品剝離。然後，使用高壓水銀燈，對成形品表面照射累積光量為1000mJ/cm2的紫外線，而將硬塗層交聯硬化。因而獲得在成形品表面形成凹凸並且具有高表面強度之實施例1的成形品。 This in-mold transfer foil was inserted into an injection molding die and clamped, and PC (polycarbonate) / ABS (acrylonitrile ‧ butadiene styrene) resin was injection-molded. Then, after cooling, the injection molding die was opened, and the base film of the in-mold transfer foil and the release layer were peeled off together from the molded article. Then, the surface of the molded article was irradiated with ultraviolet rays having a cumulative light amount of 1000 mJ/cm 2 using a high-pressure mercury lamp, and the hard coat layer was cross-linked and hardened. Thus, the molded article of Example 1 in which irregularities were formed on the surface of the molded article and had high surface strength was obtained.
使用聚對苯二甲酸乙二酯樹脂膜作為基膜，與實施例1同樣地，於基膜上形成離型層、硬塗層、印刷層、接著層。 Using a polyethylene terephthalate resin film as a base film, a release layer, a hard coat layer, a print layer, and an adhesive layer were formed on the base film in the same manner as in Example 1.
隨後，在基膜之與離型層形成面的反側面，使用雙液硬化型紫外線吸收聚合物(新中村化學製VANARESIN UVA-55MHB)作為紫外線遮蔽層、日本聚胺基甲酸酯製CORONATE L作為硬化劑來形成紫外線遮蔽層。 Subsequently, a two-liquid hardening type ultraviolet absorbing polymer (VANARESIN UVA-55MHB manufactured by Shin-Nakamura Chemical Co., Ltd.) was used as the ultraviolet shielding layer and CORONATE L made of Japanese polyurethane on the reverse side of the surface of the base film and the release layer. An ultraviolet shielding layer is formed as a hardener.
隨後，在該紫外線遮蔽層上使用帝國印墨製紫外線硬化性樹脂(UVFIX網版印墨)作為凹凸形成層，並以網版印刷法形成凹凸。然後，從已形成凹凸形成層之面側照射紫外線(高壓水銀燈 累積光量800mJ/cm2)來交聯硬化凹凸形成層，而獲得實施例2的模內轉印箔。 Subsequently, an ultraviolet curable resin (UVFIX screen printing ink) made of Imperial ink was used as the unevenness forming layer on the ultraviolet shielding layer, and irregularities were formed by a screen printing method. Then, ultraviolet rays (high-pressure mercury lamp cumulative light amount: 800 mJ/cm 2 ) were irradiated from the surface side on which the unevenness-forming layer was formed to cross-link the hardened unevenness-forming layer, and the in-mold transfer foil of Example 2 was obtained.
將該模內轉印箔插入射出成形用模具內並進行合模，而將PC/ABS樹脂進行射出成形。然後，冷卻 後，將射出成形用模具打開，並將模內轉印箔的基膜與離型層一起從成形品剝離。然後，使用高壓水銀燈，對成形品表面照射累積光量為1000mJ/cm2的紫外線，而將硬塗層交聯硬化。因而獲得在成形品表面形成凹凸並且具有高表面強度之實施例2的成形品。 This in-mold transfer foil was inserted into an injection molding die and clamped, and the PC/ABS resin was injection-molded. Then, after cooling, the injection molding die was opened, and the base film of the in-mold transfer foil was peeled off from the molded article together with the release layer. Then, the surface of the molded article was irradiated with ultraviolet rays having a cumulative light amount of 1000 mJ/cm 2 using a high-pressure mercury lamp, and the hard coat layer was cross-linked and hardened. Thus, the molded article of Example 2 in which irregularities were formed on the surface of the molded article and had high surface strength was obtained.
使用聚對苯二甲酸乙二酯樹脂膜作為基膜，於該基膜上形成紫外線遮蔽層、三聚氰胺樹脂系離型層、紫外線硬化性的丙烯酸樹脂系硬塗層。其中使用雙液硬化型紫外線吸收聚合物(新中村化學製VANARESIN UVA-55MHB)作為紫外線遮蔽層、日本聚胺基甲酸酯製CORONATEL作為硬化劑。針對離型層、硬塗層係與實施例1同樣地形成。又，然後，與實施例1同樣地以凹版印刷法形成印刷層、接著層。 A polyethylene terephthalate resin film is used as a base film, and an ultraviolet shielding layer, a melamine resin release layer, and an ultraviolet curable acrylic resin hard coat layer are formed on the base film. Among them, a two-liquid curing type ultraviolet absorbing polymer (VANARESIN UVA-55MHB manufactured by Nakamura Kogyo Co., Ltd.) was used as a curing agent for the ultraviolet shielding layer and CORONATEL made of Japanese polyurethane. The release layer and the hard coat layer were formed in the same manner as in Example 1. Further, a printing layer and an adhesive layer were formed by a gravure printing method in the same manner as in Example 1.
隨後，在基膜之與離型層形成面的相反側，使用UV噴墨法而形成凹凸來作為凹凸形成層。再者，所使用的UV噴墨裝置的紫外線光源為LED，從已形成凹凸形成層之面側照射紫外線來交聯硬化凹凸形成層。從而獲得實施例3的模內轉印箔。 Subsequently, on the side opposite to the surface on which the base film was formed and the release layer, irregularities were formed as a concavo-convex formation layer by a UV inkjet method. In addition, the ultraviolet light source of the UV inkjet apparatus to be used is an LED, and the surface of the surface on which the uneven layer is formed is irradiated with ultraviolet rays to crosslink the hardened uneven layer. Thus, the in-mold transfer foil of Example 3 was obtained.
將該模內轉印箔插入射出成形用模具內並進行合模，而將PC/ABS樹脂進行射出成形。然後，冷卻後，將射出成形用模具打開，並將模內轉印箔的基膜和離型層一起從成形品剝離。然後使用高壓水銀燈，對成形品表面照射積算光量為1000mJ/cm2的紫外線，而將硬塗層交聯硬化。因而獲得在成形品表面形成凹凸並且具有高表面強度之實施例3的成形品。 This in-mold transfer foil was inserted into an injection molding die and clamped, and the PC/ABS resin was injection-molded. Then, after cooling, the injection molding die was opened, and the base film of the in-mold transfer foil and the release layer were peeled off together from the molded article. Then, the surface of the molded article was irradiated with ultraviolet rays having a total amount of light of 1000 mJ/cm 2 using a high-pressure mercury lamp, and the hard coat layer was cross-linked and hardened. Thus, the molded article of Example 3 in which irregularities were formed on the surface of the molded article and had high surface strength was obtained.
使用聚對苯二甲酸乙二酯樹脂膜(東麗製50T60)作為基膜，於基膜上形成三聚氰胺樹脂系離型層、紫外線硬化性的丙烯酸樹脂系硬塗層。然後，使用胺基甲酸酯系印墨作為印刷層、丙烯酸系樹脂作為接著層，並以凹版印刷法形成各層。 A polyethylene terephthalate resin film (50T60 manufactured by Toray Industries, Inc.) was used as a base film, and a melamine resin release layer and an ultraviolet curable acrylic resin-based hard coat layer were formed on the base film. Then, a urethane-based ink was used as a printing layer, and an acrylic resin was used as an adhesive layer, and each layer was formed by a gravure printing method.
隨後，在基膜之與離型層形成面相反側上，與實施例1同樣地形成凹凸形成層，獲得比較例1的模內轉印箔。 Subsequently, on the side opposite to the surface on which the release film was formed, the unevenness-forming layer was formed in the same manner as in Example 1, and the in-mold transfer foil of Comparative Example 1 was obtained.
使用該模內轉印箔，與實施例1至3同樣地進行射出成形及對成形品之紫外線的照射，獲得比較例1的成形品。 Using the in-mold transfer foil, injection molding and irradiation of ultraviolet rays of the molded article were carried out in the same manner as in Examples 1 to 3 to obtain a molded article of Comparative Example 1.
觀察比較例1之成形品的外觀時，大多產生實施例1至3之成形品所未觀察到之成形品角落處的龜裂。又，比較例1之成形品的末端處有部分不能轉印的地方，與實施例1至3的成形品比較，凹凸的轉印性亦不佳。 When the appearance of the molded article of Comparative Example 1 was observed, cracks at the corners of the molded article which were not observed in the molded articles of Examples 1 to 3 were often produced. Further, in the molded article of Comparative Example 1, a portion where the portion was not transferable was obtained, and the transfer property of the unevenness was also inferior to those of the molded articles of Examples 1 to 3.
其中，雖然參照同時說明有限數量的實施形態，但權利範圍係不受該等限制，根據上述所揭示之各實施形態的改變係受本領域技術人員所熟知。 While the invention has been described with reference to a limited number of embodiments, the scope of the invention is not limited thereto, and modifications according to the various embodiments disclosed above are well known to those skilled in the art.
關於本發明之模內轉印箔係能夠使用於家電製品、住宅設備、辦公設備、汽車零件等所利用的面板部件等的表面保護和其加飾。 The in-mold transfer foil of the present invention can be used for surface protection and decoration of panel members used in home electric appliances, house equipment, office equipment, automobile parts, and the like.
1‧‧‧凹凸形成層 1‧‧‧ uneven layer
2‧‧‧具有紫外線遮蔽性的基膜 2‧‧‧base film with UV shielding
3‧‧‧離型層 3‧‧‧ release layer
4‧‧‧硬塗層 4‧‧‧hard coating
5‧‧‧印刷層 5‧‧‧Printing layer
6‧‧‧接著層 6‧‧‧Next layer
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| JP6906981B2 (en) * | 2017-03-01 | 2021-07-21 | 大日本印刷株式会社 | Manufacturing method of transfer sheet for three-dimensional molding and decorative resin molded product |
| PL241822B1 (en) * | 2018-03-02 | 2022-12-12 | Klanad Spolka Z Ograniczona Odpowiedzialnoscia | Decorated convex film and method for producing it |
| JP6927451B2 (en) * | 2019-03-29 | 2021-09-01 | 大日本印刷株式会社 | Manufacturing method of transfer sheet and decorative molded product |
| EP4223480A4 (en) * | 2020-09-29 | 2024-10-23 | Dainippon Printing Co Ltd | Transfer sheet and method for producing resin molded article using same |
| CN113635689B (en) * | 2021-07-19 | 2023-03-21 | 江西水晶光电有限公司 | UV transfer printing process for Fresnel lens textures |
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| JPH01120398A (en) * | 1987-11-04 | 1989-05-12 | Navitas Co Ltd | Transfer film for co-molding transfer printing |
| JPH09327843A (en) * | 1996-06-07 | 1997-12-22 | Nissha Printing Co Ltd | Production of molded product having uneven surface |
| JP4508491B2 (en) * | 2001-09-07 | 2010-07-21 | 大日本印刷株式会社 | Transfer sheet and manufacturing method thereof |
| JP2006305898A (en) * | 2005-04-28 | 2006-11-09 | Yoshida Industry Co Ltd | Method for producing resin molding and resin molding |
| JP2011011378A (en) * | 2009-06-30 | 2011-01-20 | Nissha Printing Co Ltd | Transfer sheet, method of manufacturing transfer sheet, and transfer article |
| JP2012035483A (en) * | 2010-08-05 | 2012-02-23 | Chiyoda Gravure Corp | Transfer material for decoration molding |
| JP5891590B2 (en) * | 2011-03-08 | 2016-03-23 | 凸版印刷株式会社 | Method for producing transfer foil for in-mold, and method for producing molded product |
| JP5885469B2 (en) * | 2011-11-10 | 2016-03-15 | 日本写真印刷株式会社 | Method for producing decorative molded product by transfer sheet and vacuum pressure bonding method |
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| JP2015077713A (en) | 2015-04-23 |
| WO2015056433A1 (en) | 2015-04-23 |
| JP6206074B2 (en) | 2017-10-04 |
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