KR101222067B1 - Decoration sheet for insert molding having three dimensional pattern and method of manufacturing the same - Google Patents

Decoration sheet for insert molding having three dimensional pattern and method of manufacturing the same Download PDF

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KR101222067B1
KR101222067B1 KR1020080084256A KR20080084256A KR101222067B1 KR 101222067 B1 KR101222067 B1 KR 101222067B1 KR 1020080084256 A KR1020080084256 A KR 1020080084256A KR 20080084256 A KR20080084256 A KR 20080084256A KR 101222067 B1 KR101222067 B1 KR 101222067B1
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dimensional
decorative
layer
sheet
insert molding
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KR1020080084256A
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Korean (ko)
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KR20100025639A (en
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김형곤
김진우
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(주)엘지하우시스
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered 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
    • B32B3/26Layered 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
    • B32B3/30Layered 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 formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/24All layers being polymeric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered 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
    • B32B27/08Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered 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
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties

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Abstract

본 발명은 입체장식효과를 가지는 인서트 성형용 장식시트 및 그 제조방법에 관한 것으로, 열경화성 고분자수지 조성물로 이루어진 투명수지층; 고분자 수지 조성물로서, 그 상면에 입체형상이 형성되어 있으며, 상기 입체형상의 계면은 상기의 투명수지층의 하면과 공유되는 입체장식층; 및 상기 입체장식층의 하면에 열합판되어 형성된 기재시트를 포함하며, 본 발명에 의하면 투명수지층과 입체장식층이 입체형상의 계면을 공유함으로써 성형공정에서 시트의 성형성을 유지하면서, 사출공정에서 입체장식효과를 유지하는 인서트 성형용 장식효과를 제조할 수 있다. The present invention relates to a decorative sheet for insert molding having a three-dimensional decorative effect and a method for manufacturing the same, a transparent resin layer made of a thermosetting polymer resin composition; A polymer resin composition, wherein a three-dimensional shape is formed on an upper surface thereof, and the three-dimensional interface includes: a three-dimensional decorative layer shared with the lower surface of the transparent resin layer; And a base sheet formed by thermally plywood formed on the lower surface of the three-dimensional decorative layer. According to the present invention, the transparent resin layer and the three-dimensional decorative layer share a three-dimensional interface, thereby maintaining the formability of the sheet in the molding process, It is possible to produce a decorative effect for insert molding to maintain a three-dimensional decorative effect.

장식시트, 입체장식, 성형, 투명수지층 Decorative sheet, three-dimensional decoration, molding, transparent resin layer

Description

입체장식효과를 가지는 인서트 성형용 장식시트 및 그 제조방법{DECORATION SHEET FOR INSERT MOLDING HAVING THREE DIMENSIONAL PATTERN AND METHOD OF MANUFACTURING THE SAME}Decorative sheet for insert molding having a three-dimensional decorative effect and a manufacturing method therefor {DECORATION SHEET FOR INSERT MOLDING HAVING THREE DIMENSIONAL PATTERN AND METHOD OF MANUFACTURING THE SAME}

본 발명은 입체장식효과를 가지는 인서트 성형용 장식시트와 그 제조방법에 관한 것으로, 보다 상세하게는 그림, 문자, 숫자, 무늬 등의 다양한 장식효과를 가진 시트로서 통상적으로 제조된 시트를 원하는 모양으로 성형한 후, 이것을 사출기 금형 안에 넣고 뒷면에 용융된 수지를 사출, 고화시킴으로써 원하는 장식효과를 가진 부품으로 제조한 장식시트에 관한 것이다.The present invention relates to a decorative sheet for insert molding having a three-dimensional decorative effect and a method for manufacturing the same, and more particularly, to a sheet having a variety of decorative effects such as pictures, letters, numbers, patterns, etc. After molding, the present invention relates to a decorative sheet made of a component having a desired decorative effect by inserting it into an injection molding machine mold and injecting and solidifying the melted resin on the back side.

인서트 성형용 장식시트를 이용한 부품의 장식효과는 사출물에 도장을 하거나 점착시트를 붙임으로써 만들어내는 장식부품에 비하여, 시트 위에 장식효과를 구현하기 때문에 구현할 수 있는 장식효과가 다양하고, 장식효과를 나타낸 후 성형하기 때문에 형상의 제약이 적으며, 휘발성 유기용매의 발생이 거의 없을 뿐만 아니라 장식층이 투명수지층에 의해 보호되므로 손상이 적다는 장점을 가진다. 이 때 문에 인서트 성형용 장식시트는 자동차의 내·외장재, 가전제품의 케이스 등에 자주 사용되고 있다.The decorative effect of the part using the decorative sheet for insert molding has a variety of decorative effects that can be realized because the decorative effect is realized on the sheet, compared to the decorative parts produced by painting or pasting an adhesive sheet. Due to the post-molding, the shape is less restricted, and there is little generation of volatile organic solvents, and since the decorative layer is protected by the transparent resin layer, the damage is less. For this reason, decorative molding sheets for insert molding are frequently used for interior and exterior materials of automobiles and cases of home appliances.

그러나 인서트 성형용 장식시트는 입체감을 가지는 장식효과를 나타내기가 어렵다는 문제를 가지고 있다. 이것은 성형과 사출이라는 상충되는 두 공정에 의해 나타나는 문제로서 인서트 성형용 시트의 입체장식효과가 성형과정에서는 적당한 형상으로 변형이 가능해야 하며, 사출과정에서는 열과 압력에 의해 장식효과가 변형되지 않아야 한다는 조건을 충족시키기 어렵기 때문이다. 즉, 성형성을 높이기 위해 입체장식이 변형되기 쉽도록 한 경우에는 사출에 의해 입체감을 잃어버리게 되는 문제를 가지게 되며, 사출에 의해 입체형상이 변형되지 않도록 하는 경우에는 입체형상이 성형과정에서 깨지게 되거나 시트의 성형성이 저해되기 때문에, 두 공정을 모두 만족시키는 입체장식효과를 구현하는 것은 기존의 인서트 성형용 시트가 해결하여야 하는 과제로 인식되어 왔다.However, the insert molding decorative sheet has a problem that it is difficult to exhibit a decorative effect having a three-dimensional effect. This is a problem caused by two conflicting processes of molding and injection. The three-dimensional decorative effect of the insert molding sheet must be deformable to a suitable shape during the molding process, and the decorative effect should not be deformed by heat and pressure during the injection process. Because it is difficult to meet. That is, when the three-dimensional decoration is easy to deform in order to increase the formability, there is a problem that the three-dimensional feeling is lost by the injection, and when the three-dimensional shape is not deformed by the injection, the three-dimensional shape is broken during the molding process. Since the moldability of the sheet is impaired, implementing a three-dimensional decorative effect that satisfies both processes has been recognized as a problem to be solved by the conventional insert molding sheet.

본 발명은 상기과 같은 문제점을 해결하기 위하여 안출된 것으로, 입체장식층과 투명수지층이 입체형상을 갖는 계면을 공유함으로써, 장식시트의 성형성을 유지하는 동시에, 사출공정에서 입체장식층이 유지되는 인서트 성형용 장식시트를 제공하는 것을 그 목적으로 한다.The present invention has been made to solve the above problems, the three-dimensional decorative layer and the transparent resin layer by sharing an interface having a three-dimensional shape, while maintaining the moldability of the decorative sheet, the three-dimensional decorative layer is maintained in the injection process It is an object to provide a decorative sheet for insert molding.

본 발명은 상기의 목적을 달성하기 위한 것으로, 열경화성 고분자수지 조성물로 이루어진 투명수지층; 고분자 수지 조성물로서, 그 상면에 입체형상이 형성되어 있으며, 상기 입체형상의 계면은 상기의 투명수지층의 하면과 공유되는 입체장식층; 및 상기 입체장식층의 하면에 열합판되어 형성된 기재시트를 포함한 인서트 성형용 장식시트를 제공한다.The present invention is to achieve the above object, a transparent resin layer made of a thermosetting polymer resin composition; A polymer resin composition, wherein a three-dimensional shape is formed on an upper surface thereof, and the three-dimensional interface includes: a three-dimensional decorative layer shared with the lower surface of the transparent resin layer; And it provides a decorative sheet for insert molding including a base sheet formed by thermally laminated on the lower surface of the three-dimensional decorative layer.

또한, 상기 입체장식층과 기재시트 사이에 접착층을 더 포함하는 것을 특징으로 한다.In addition, it characterized in that it further comprises an adhesive layer between the three-dimensional decorative layer and the base sheet.

또한, 상기 입체장식층의 하면에 형성된 제 2 장식층을 더 포함하는 것을 특징으로 한다.In addition, it characterized in that it further comprises a second decorative layer formed on the lower surface of the three-dimensional decorative layer.

또한, 상기 투명수지층은 열경화성 수지 조성물로서, 아크릴수지 100 중량부, 이소시아네이트 경화제 1 ~ 10 중량부 및 용제 100 ~ 200중량부로 이루어진 것을 특징으로 한다.In addition, the transparent resin layer is a thermosetting resin composition, characterized in that consisting of 100 parts by weight of acrylic resin, 1 to 10 parts by weight of isocyanate curing agent and 100 to 200 parts by weight of a solvent.

또한, 상기 입체장식층은 폴리염화비닐(PVC) 또는 ABS(Acrilonitrile-Butadiene-Styrene) 시트인 것을 특징으로 한다.In addition, the three-dimensional decorative layer is characterized in that the polyvinyl chloride (PVC) or ABS (Acrilonitrile-Butadiene-Styrene) sheet.

또한, 상기 기재시트는 ABS, PC, PVC, PC/ABS, 또는 올레핀계 수지 중에서 선택되는 하나인 것을 특징으로 한다.In addition, the base sheet is characterized in that one selected from ABS, PC, PVC, PC / ABS, or an olefin resin.

또한, 상기 접착층은 폴리에스테르 수지, 용제 및 이소시아네이트로 이루어졌으며, 상기 용제는 톨루엔, 에틸아세테이트, 메틸에틸케톤 또는 이들의 혼합물인 것을 특징으로 한다.In addition, the adhesive layer is made of a polyester resin, a solvent and an isocyanate, the solvent is characterized in that toluene, ethyl acetate, methyl ethyl ketone or a mixture thereof.

또한, 본 발명은 입체장식효과를 가지는 인서트 성형용 장식시트의 제조방법에 있어서, (a) 열가소성 시트를 입체형상을 가지는 금속롤 및 고무롤 사이로 통과시켜 입체형상을 부여하여 입체장식층을 형성하는 단계; (b) 상기 입체장식층의 입체면에 아크릴계 수지 조성물을 코팅하여 투명수지층을 형성하는 단계; 및 (c) 상기 입체장식층의 입체면이 형성된 면과 반대측 면에 기재시트를 위치시켜 열합판 시킴으로써 장식시트를 제조하는 단계를 포함하는 것을 특징으로 하는 인서트 성형용 장식시트를 제조하는 방법을 제공한다.In addition, the present invention is a method of manufacturing a decorative sheet for insert molding having a three-dimensional decorative effect, (a) passing the thermoplastic sheet between the metal roll and rubber roll having a three-dimensional shape to give a three-dimensional shape to form a three-dimensional decorative layer ; (b) forming a transparent resin layer by coating an acrylic resin composition on a three-dimensional surface of the three-dimensional decorative layer; And (c) manufacturing a decorative sheet by placing a base sheet on a surface opposite to a surface on which a three-dimensional surface of the three-dimensional decorative layer is formed and thermally plywood to prepare a decorative sheet for insert molding. do.

또한, 상기 (c) 단계 이전에 입체장식층의 입체면이 형성된 면과 반대측 면에 인쇄, 금속증착, 또는 스퍼터링의 공법으로 제 2 장식층을 코팅하는 단계를 더 포함하는 것을 특징으로 한다.In addition, before the step (c) is characterized in that it further comprises the step of coating the second decorative layer by the printing, metal deposition, or sputtering method on the surface opposite to the surface on which the three-dimensional surface of the three-dimensional decoration layer is formed.

또한, 상기 (c) 단계 이전에 접착층을 형성하는 단계를 더 포함하는 것을 특징으로 한다.In addition, before the step (c) is characterized in that it further comprises the step of forming an adhesive layer.

본 발명에 의하면 투명수지층과 입체장식층이 입체형상의 계면을 공유함으로써, 성형공정에서 시트의 성형성을 유지하고 또한 사출공정에서 입체장식효과를 유지하는 입체장식효과를 가지는 인서트 성형용 장식시트를 제공할 수 있다. According to the present invention, since the transparent resin layer and the three-dimensional decorative layer share a three-dimensional interface, the decorative sheet for insert molding having a three-dimensional decorative effect of maintaining the formability of the sheet in the molding process and maintaining the three-dimensional decorative effect in the injection process Can provide.

도 1 및 도 2는 본 발명의 실시예들에 따른 입체장식효과를 가지는 인서트 성형용 장식시트를 개략적으로 도시한 단면도들이다.1 and 2 are cross-sectional views schematically showing a decorative sheet for insert molding having a three-dimensional decorative effect according to embodiments of the present invention.

본 발명에 의한 입체장식효과를 가지는 장식시트는 시트의 표면에 존재하는 투명수지층(10)과 상기 투명수지층과 입체형상의 계면을 공유하는 입체장식층(20)과, 상기 입체장식층(20)의 하면에 위치하며 열가소성수지로 이루어진 기재시트(30)로 구성된다.Decorative sheet having a three-dimensional decorative effect according to the present invention is a transparent resin layer (10) present on the surface of the sheet and the three-dimensional decorative layer 20 and the three-dimensional decorative layer (20) sharing a three-dimensional interface with the transparent resin layer Located on the lower surface of the) is composed of a base sheet 30 made of a thermoplastic resin.

또한 본 발명에 의한 장식시트는 선택적으로 상기 입체장식층의 장식효과를 보완하여 주는 제2 장식층(40)과 상기 기재층과 입체장식층 혹은 제2장식층 사이에 접착력을 향상시키는 역할을 하는 접착층(50)으로 이루어질 수 있다.In addition, the decorative sheet according to the present invention selectively serves to improve the adhesive force between the second decorative layer 40 and the base layer and the three-dimensional decorative layer or the second decorative layer to complement the decorative effect of the three-dimensional decorative layer. It may be made of an adhesive layer 50.

상기 투명수지층(10)은 장식시트의 표면층으로서, 장식시트의 사용과정에서 외부환경으로부터 시트의 장식효과를 보호해주는 역할을 할 뿐 아니라, 사출공정에서 장식층의 입체형상을 보호하여 준다. 본 발명에서 상기 투명수지층(10)은 입체장식층(20)과 입체형상의 계면을 공유함으로써, 사출공정에서 입체형상이 금형에 의해 무너지는 것을 방지하고 장식시트의 입체형상을 보호하게 되는데, 이는 사출공정에서 시트가 열과 압력을 받게 되더라도 투명수지층이 입체형상의 계면을 보호하여 입체형상이 유지되기 때문이다.The transparent resin layer 10 is a surface layer of the decorative sheet, and serves to protect the decorative effect of the sheet from the external environment in the process of using the decorative sheet, and also protects the three-dimensional shape of the decorative layer in the injection process. In the present invention, the transparent resin layer 10 by sharing the three-dimensional interface with the three-dimensional decorative layer 20, to prevent the three-dimensional shape collapsed by the mold in the injection process and to protect the three-dimensional shape of the decorative sheet, which This is because the transparent resin layer protects the three-dimensional interface even when the sheet is subjected to heat and pressure in the injection process, thereby maintaining the three-dimensional shape.

상기 투명수지층(10)은 외부환경으로부터 장식층을 보호하기 위하여 열경화성 수지조성물로 만들어지며, 본 발명에서 상기 투명수지층은 폴리메틸메타크릴레이트 혹은 폴리에틸메타크릴레이트 혹은 그 혼합물로 구성되는 아크릴계 수지와 이소시아네이트계 경화제 그리고 용제로 이루어 진다. The transparent resin layer 10 is made of a thermosetting resin composition in order to protect the decorative layer from the external environment, in the present invention, the transparent resin layer is an acrylic system composed of polymethyl methacrylate or polyethyl methacrylate or a mixture thereof. It consists of a resin, an isocyanate-based curing agent and a solvent.

이소시아네이트계 경화제의 함량은 아크릴계 수지 100중량부에 1~10 중량부가 바람직하며, 더욱 바람직하게는 3~6중량부가 포함된다. 만약 경화제가 10중량부를 초과하는 경우 경화시간이 짧아 배합된 수지조성물의 사용 가능한 시간이 짧아질 수 있고, 1중량부 미만일 경우 장식층을 보호하기 위한 충분한 표면물성을 가지기 어렵다. The content of the isocyanate-based curing agent is preferably 1 to 10 parts by weight, more preferably 3 to 6 parts by weight of 100 parts by weight of the acrylic resin. If the curing agent exceeds 10 parts by weight, the curing time may be short, so that the usable time of the blended resin composition may be shortened. If the curing agent is less than 1 part by weight, it is difficult to have sufficient surface properties for protecting the decorative layer.

투명수지층(10)에 사용되는 용제로는 톨루엔, 에틸아세테이트, 메틸에틸케톤 혹은 이들의 혼합물이 사용될 수 있으며, 코팅의 설비와 조건에 따라 그 조성을 다양하게 변형시킬 수 있다. 본 발명에서 사용되는 용제의 함량은 아크릴계 수지 100중량부에 용제 100 ~ 200 중량부가 바람직하다. 만약 200 중량부를 초과하는 경우 고형분이 작아 충분한 두께를 코팅하기가 쉽지 않고, 100중량부 미만일 경우 점도가 높아 코팅성이 저해되므로 바람직하지 못하다.Toluene, ethyl acetate, methyl ethyl ketone or a mixture thereof may be used as the solvent used for the transparent resin layer 10, and its composition may be variously modified according to the equipment and conditions of the coating. As for the content of the solvent used by this invention, 100-200 weight part of solvents are preferable for 100 weight part of acrylic resin. If it exceeds 200 parts by weight of the solid content is not easy to coat a sufficient thickness, less than 100 parts by weight is not preferable because the coating property is inhibited due to the high viscosity.

본 발명의 입체장식층(20)은 투명수지층(10)과 입체형상의 계면을 공유하는 고유한 장식효과를 가지는 층이다. 상기 입체장식층(20)이 가지는 입체형상은 반복적인 패턴 혹은 그림, 문자, 무늬 등이 될 수 있다. 본 발명에서 상기 입체장식층(20)은 열가소성 시트로 이루어지며 성형과정에서 열에 의한 기재시트의 변형에 따라 쉽게 성형될 수 있으며, 사출공정에서 입체형상의 계면을 공유하고 있는 투명수지층(10)에 의해 입체형상을 보호받게 된다. 이러한 입체장식층으로는 PVC, ABS 시트등이 사용될 수 있으며 이들 시트를 입체형상을 가지는 고온의 롤에 통과시켜 입체장식효과를 형성하게 된다.The three-dimensional decorative layer 20 of the present invention is a layer having a unique decorative effect sharing a three-dimensional interface with the transparent resin layer (10). The three-dimensional shape of the three-dimensional decorative layer 20 may be a repetitive pattern or a picture, letters, patterns. In the present invention, the three-dimensional decorative layer 20 is made of a thermoplastic sheet and can be easily molded according to the deformation of the base sheet by heat in the molding process, in the transparent resin layer 10 sharing a three-dimensional interface in the injection process The three-dimensional shape is protected by this. PVC, ABS sheets, etc. may be used as the three-dimensional decorative layer, and these sheets are passed through a hot roll having a three-dimensional shape to form a three-dimensional decorative effect.

본 발명의 기재시트(30)는 인서트 성형용 시트의 기계적 물성에 크게 관여한다. 기재시트는 상기 투명수지층(10)과 입체장식층(20)이 성형 공정에 의해 원하는 모양으로 변형되도록 하는 층으로서, 우수한 성형성을 가져야 한다. 또한 상기 기재시트(30)는 사출공정에서 사출, 고화되는 수지로서, 만들어지는 부품에 투명수지층(10)과 입체장식층(20)이 고착되어 본연의 장식효과를 구현하도록 기여하며, 성형 및 사출공정에서 사출되는 용융수지의 열과 압력으로부터 상기 투명수지층(10)과 입체장식층(20)을 보호하여 주는 역할을 한다. 본 발명에서 기재시트(30)는 ABS, PC, PVC, PC/ABS, 올레핀계 수지 등이 적합하다.Base sheet 30 of the present invention is largely involved in the mechanical properties of the sheet for insert molding. The base sheet is a layer for deforming the transparent resin layer 10 and the three-dimensional decorative layer 20 to a desired shape by the molding process, it should have excellent moldability. In addition, the base sheet 30 is a resin that is injected and solidified in the injection process, and the transparent resin layer 10 and the three-dimensional decorative layer 20 are fixed to the parts to be made, thereby contributing to realizing the original decorative effect, forming and It serves to protect the transparent resin layer 10 and the three-dimensional decorative layer 20 from the heat and pressure of the molten resin injected in the injection process. In the present invention, the base sheet 30 is suitable for ABS, PC, PVC, PC / ABS, olefin resin, and the like.

본 발명의 제2장식층(40)은 본 발명에 의한 인서트 성형용 장식시트의 장식효과를 더욱 돋보이게 만들기 위해 추가적으로 구성되는 층으로서, 보다 사실감 있 는 장식효과를 제공하거나, 미적인 효과를 보완하는 역할을 한다. 예를 들면 상기 제2장식층(40)은 금속 재질감을 부여하는데 효과적이며 이러한 금속효과는 투명한 입체장식층(20) 뒤에 인쇄, 금속증착 혹은 스퍼터링과 같은 공법을 통해 제2장식층(40)을 형성함으로써 나타낼 수 있다. 이러한 금속재질효과 이외에도 상기 제2 장식층(40)에 정보전달을 위한 문자, 그림 혹은 나무, 천연석 등의 느낌을 주도록 인쇄를 함으로써 입체장식층(20)만으로 구현하기 어려운 다양한 미적효과를 제공할 수 있다. The second decorative layer 40 of the present invention is a layer additionally configured to further enhance the decorative effect of the decorative sheet for insert molding according to the present invention, to provide a more realistic decorative effect, or to complement the aesthetic effect Do it. For example, the second decorative layer 40 is effective to impart a metallic texture, and this metal effect is applied to the second decorative layer 40 through a method such as printing, metal deposition, or sputtering behind the transparent three-dimensional decorative layer 20. By forming. In addition to the metal material effect, the second decorative layer 40 may provide various aesthetic effects that are difficult to realize only by the three-dimensional decorative layer 20 by printing to give a feeling such as letters, pictures or wood, natural stone for information transmission. have.

본 발명의 접착층(50)은 상기 입체장식층(20) 혹은 제2 장식층(40)과 기재시트(30) 사이의 접착력을 높이기 위해 선택적으로 부여되는 층으로서, 상기 입체장식층(20) 혹은 제2 장식층(40)이 기재시트(30)와의 접착력이 낮은 경우 접착제 등을 통해 접착력을 강화하여 기재시트(30)에 장식층이 견고하게 위치하도록 한다. 특히 상기 제2장식층(40)이 금속재질로 이루어지는 경우 폴리에스테르 수지 조성물로 이루어진 접착제를 코팅하여 기재시트와 장식층 사이의 접착력을 높일 수 있다. 이때의 폴리에스테르 수지 조성물은 고형분 40~50%로 용제는 톨루엔, 에틸아세테이트, 메틸에틸케톤 혹은 이들의 혼합물로 구성되며 이소시아네이트계 경화제 0.2 ~ 1.0 중량부가 사용될 수 있다.Adhesive layer 50 of the present invention is a layer that is selectively provided to increase the adhesive force between the three-dimensional decorative layer 20 or the second decorative layer 40 and the base sheet 30, the three-dimensional decorative layer 20 or When the second decorative layer 40 has low adhesive strength with the base sheet 30, the adhesive layer is strengthened by an adhesive or the like so that the decorative layer is firmly positioned on the base sheet 30. In particular, when the second decorative layer 40 is made of a metal material, it is possible to increase the adhesion between the base sheet and the decorative layer by coating an adhesive made of a polyester resin composition. In this case, the polyester resin composition has a solid content of 40 to 50%, and the solvent is composed of toluene, ethyl acetate, methyl ethyl ketone, or a mixture thereof, and 0.2 to 1.0 parts by weight of an isocyanate curing agent.

본 발명은 또한 상기 입체장식효과를 가지는 인서트 성형용 장식시트의 제조방법을 제공한다. 본 발명에 따른 인서트 성형용 장식시트는 입체장식층(20)에 엠 보싱 공정을 통하여 입체형상을 부여한 후 투명수지층(10)을 코팅하고, 이를 기재시트(30)에 합판함으로써 제조된다. The present invention also provides a method for producing a decorative sheet for insert molding having the three-dimensional decorative effect. The decorative sheet for insert molding according to the present invention is manufactured by applying a three-dimensional shape to the three-dimensional decorative layer 20 through an embossing process, coating the transparent resin layer 10, and plywood the substrate sheet 30.

우선 두께가 30~200 미크론의 투명 혹은 유색의 열가소성 시트를 입체형상을 가지는 고온의 금속롤과 평탄한 고무롤 사이로 통과시키는 엠보싱 공정을 통하여 원하는 입체형상을 부여하여 입체장식층을 제조한다. 상기와 같이 제조된 입체장식층의 입체면에 콤마코팅이나 롤코팅 방식 등을 이용하여 아크릴계 수지로 구성된 수지 조성물을 코팅하여 투명수지층(10)을 형성한다. 투명수지층(10)이 형성된 입체장식층(20)의 입체장식이 형성된 면의 반대면에 기재시트(30)를 위치하도록 하고, 이를 함께 120 ~ 180℃의 롤 사이로 통과시킴으로써, 최종적으로 인서트 성형용 장식시트를 제조한다.First, a three-dimensional decorative layer is prepared by imparting a desired three-dimensional shape through an embossing process of passing a transparent or colored thermoplastic sheet having a thickness of 30 to 200 microns between a high-temperature metal roll having a three-dimensional shape and a flat rubber roll. The transparent resin layer 10 is formed by coating a resin composition composed of an acrylic resin using a comma coating or a roll coating method on the three-dimensional surface of the three-dimensional decorative layer prepared as described above. The base sheet 30 is positioned on the opposite side of the surface of the three-dimensional decoration layer 20 on which the transparent resin layer 10 is formed, and passed together between the rolls of 120 to 180 ° C., thereby finally insert molding. Prepare a decorative sheet for the.

이렇게 제조된 장식시트는 상기 입체장식층(20)에 부여된 입체형상이 투명수지층(10)과 입체장식층(20)의 계면으로 작용함과 동시에 장식시트의 입체장식효과를 구현하게 된다. The decorative sheet thus prepared serves to interface with the transparent resin layer 10 and the three-dimensional decorative layer 20 while the three-dimensional shape applied to the three-dimensional decorative layer 20 to realize the three-dimensional decorative effect of the decorative sheet.

이하 본 발명에 따른 실시예를 통하여 본 발명을 더욱 상세히 설명하지만, 본 발명의 범위는 제시한 실시예에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail through examples according to the present invention, but the scope of the present invention is not limited to the examples presented.

실시예Example

실시예Example 1  One

두께 200 미크론의 PVC시트를 입체형상을 가지는 150℃의 금속롤과 고무롤 사이를 통과함으로써 입체장식층을 형성한다. 그 위에 아크릴 수지 100중량부와 이소시아네이트 경화제 3중량부, MEK와 Toluene 각 100 중량부로 제조된 수지 조성물을 콤마코팅 방식으로 약 30 미크론 두께로 코팅한다. 이것을 300 미크론 두께의 ABS시트와 160℃ 온도의 롤 사이로 통과시킴으로써 합판하여 인서트 성형용 장식시트를 제조한다.The three-dimensional decorative layer is formed by passing a 200-micron-thick PVC sheet between a metal roll and a rubber roll having a three-dimensional shape at 150 ° C. The resin composition prepared from 100 parts by weight of acrylic resin, 3 parts by weight of isocyanate curing agent, and 100 parts by weight of MEK and Toluene each is coated to a thickness of about 30 microns by a comma coating method. It is laminated by passing it between a 300 micron thick ABS sheet and a 160 ° C. roll to produce a decorative sheet for insert molding.

실시예Example 2 2

두께 100미크론의 투명한 PVC 시트를 150℃의 롤 사이로 통과시킴으로써 입체형상을 부여하여 입체장식층을 형성한 뒤 반대면에 알루미늄 증착을 실시하여 금속층을 형성한다. 그 위에 아크릴 수지 100중량부와 이소시아네이트 경화제 3중량부, MEK와 Toluene 각 100 중량부로 제조된 수지 조성물을 콤마코팅 방식으로 약 30 미크론 두께로 코팅한다. 이것을 400미크론 두께의 ABS시트와 160℃ 온도의 롤 사이로 통과시킴으로써 합판함으로써 인서트 성형용 장식시트를 제조한다.The transparent PVC sheet having a thickness of 100 microns is passed between the rolls at 150 ° C. to give a three-dimensional shape to form a three-dimensional decorative layer, and then aluminum is deposited on the opposite side to form a metal layer. The resin composition prepared from 100 parts by weight of acrylic resin, 3 parts by weight of isocyanate curing agent, and 100 parts by weight of MEK and Toluene each is coated to a thickness of about 30 microns by a comma coating method. The decorative sheet for insert molding is manufactured by plywood by passing it between a 400 micron thick ABS sheet and a 160 degreeC roll.

도 1은 본 발명의 실시예에 따른 입체장식효과를 가지는 인서트 성형용 장식시트를 개략적으로 도시한 단면도.1 is a cross-sectional view schematically showing a decorative sheet for insert molding having a three-dimensional decorative effect according to an embodiment of the present invention.

도 2는 본 발명의 다른 실시예에 따른 입체장식효과를 가지는 인서트 성형용 장식시트를 개략적으로 도시한 단면도.Figure 2 is a cross-sectional view schematically showing a decorative sheet for insert molding having a three-dimensional decorative effect according to another embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10: 투명수지층 20: 입체장식층10: transparent resin layer 20: three-dimensional decorative layer

30: 기재시트 40: 제 2 장식층30: base sheet 40: second decorative layer

50: 접착층50: adhesive layer

Claims (10)

열경화성 고분자수지 조성물로 이루어진 투명수지층; 고분자 수지 조성물로서, 그 상면에 입체형상이 형성되어 있으며, 상기 입체형상의 계면은 상기의 투명수지층의 하면과 공유되는 입체장식층; 및 상기 입체장식층의 하면에 열합판되어 형성된 기재시트를 포함한 인서트 성형용 장식시트로서, Transparent resin layer made of a thermosetting polymer resin composition; A polymer resin composition, wherein a three-dimensional shape is formed on an upper surface thereof, and the three-dimensional interface includes: a three-dimensional decorative layer shared with the lower surface of the transparent resin layer; And As a decorative sheet for insert molding comprising a base sheet formed by thermally laminated on the lower surface of the three-dimensional decorative layer, 상기 입체장식층과 기재시트 사이에 접착층을 포함하며,An adhesive layer is provided between the three-dimensional decorative layer and the base sheet, 상기 접착층은 폴리에스테르 수지, 용제 및 이소시아네이트로 이루어졌으며, 상기 용제는 톨루엔, 에틸아세테이트, 메틸에틸케톤 또는 이들의 혼합물인 것을 특징으로 하는 인서트 성형용 장식시트.The adhesive layer is made of a polyester resin, a solvent and an isocyanate, and the solvent is toluene, ethyl acetate, methyl ethyl ketone or a mixture sheet for insert molding, characterized in that a mixture thereof. 삭제delete 제 1 항에 있어서, 상기 입체장식층의 하면에 형성된 제 2 장식층을 더 포함하는 것을 특징으로 하는 인서트 성형용 장식시트.The decorative sheet for insert molding according to claim 1, further comprising a second decorative layer formed on a lower surface of the three-dimensional decorative layer. 제 1 항에 있어서, 상기 투명수지층은 열경화성 수지 조성물로써, 아크릴수지 100 중량부, 이소시아네이트 경화제 1 ~ 10 중량부 및 용제 100 ~ 200 중량부로 이루어진 것을 특징으로 하는 인서트 성형용 장식시트According to claim 1, wherein the transparent resin layer is a thermosetting resin composition, the decorative sheet for insert molding, characterized in that consisting of 100 parts by weight of acrylic resin, 1 to 10 parts by weight of isocyanate curing agent and 100 to 200 parts by weight of solvent. 제 1 항에 있어서, 상기 입체장식층은 폴리비닐알콜(PVC) 또는 ABS(Acrilonitrile-Butadiene-Styrene) 시트인 것을 특징으로 하는 인서트 성형용 장식시트.The decorative sheet for insert molding according to claim 1, wherein the three-dimensional decorative layer is polyvinyl alcohol (PVC) or ABS (Acrilonitrile-Butadiene-Styrene) sheet. 제 1 항에 있어서, 상기 기재시트는 ABS, PC, PVC, PC/ABS, 또는 올레핀계 수지 중에서 선택되는 하나인 것을 특징으로 하는 인서트 성형용 장식시트.The decorative sheet for insert molding according to claim 1, wherein the base sheet is one selected from ABS, PC, PVC, PC / ABS, or an olefin resin. 삭제delete 입체장식효과를 가지는 인서트 성형용 장식시트의 제조방법에 있어서,In the manufacturing method of the decorative sheet for insert molding having a three-dimensional decorative effect, (a) 열가소성 시트를 입체형상을 가지는 금속롤 및 고무롤 사이로 통과시켜 입체형상을 부여하여 입체장식층을 형성하는 단계;(a) passing the thermoplastic sheet between the metal roll and the rubber roll having a three-dimensional shape to give a three-dimensional shape to form a three-dimensional decorative layer; (b) 상기 입체장식층의 입체면에 아크릴계 수지 조성물을 코팅하여 투명수지 층을 형성하는 단계; 및(b) forming a transparent resin layer by coating an acrylic resin composition on a three-dimensional surface of the three-dimensional decorative layer; And (c) 상기 입체장식층의 입체면이 형성된 면과 반대측 면에 기재시트를 위치시켜 열합판 시킴으로써 장식시트를 제조하는 단계(c) preparing a decorative sheet by placing a base sheet on a surface opposite to a surface on which a three-dimensional surface of the three-dimensional decorative layer is formed and thermally plywood; 를 포함하는 것을 특징으로 하는 인서트 성형용 장식시트를 제조하는 방법.Method of manufacturing a decorative sheet for insert molding comprising a. 제 8 항에 있어서, 상기 (c) 단계 이전에 입체장식층의 입체면이 형성된 면과 반대측 면에 인쇄, 금속증착, 또는 스퍼터링의 공법으로 제 2 장식층을 코팅하는 단계를 더 포함하는 것을 특징으로 하는 인서트 성형용 장식시트를 제조하는 방법.The method of claim 8, further comprising the step of coating the second decorative layer by printing, metal deposition, or sputtering on the surface opposite to the surface on which the three-dimensional surface of the three-dimensional decoration layer is formed before step (c). Method of manufacturing a decorative sheet for insert molding. 제 8 항에 있어서, 상기 (c) 단계 이전에 접착층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 인서트 성형용 장식시트를 제조하는 방법.The method of claim 8, further comprising the step of forming an adhesive layer before the step (c).
KR1020080084256A 2008-08-28 2008-08-28 Decoration sheet for insert molding having three dimensional pattern and method of manufacturing the same KR101222067B1 (en)

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KR880017675U (en) * 1987-03-16 1988-10-26 주식회사럭키 Three-dimensional pattern synthetic resin sheet
JPH033032B2 (en) * 1986-07-04 1991-01-17 Kenjiro Mitsuoke
JPH06218760A (en) * 1993-01-25 1994-08-09 Yazaki Corp Insert molded product of/surface-treated member and production thereof
JP2001030286A (en) 1999-07-16 2001-02-06 Nippon Plast Co Ltd Insert molding and its manufacture

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Publication number Priority date Publication date Assignee Title
JPH033032B2 (en) * 1986-07-04 1991-01-17 Kenjiro Mitsuoke
KR880017675U (en) * 1987-03-16 1988-10-26 주식회사럭키 Three-dimensional pattern synthetic resin sheet
JPH06218760A (en) * 1993-01-25 1994-08-09 Yazaki Corp Insert molded product of/surface-treated member and production thereof
JP2001030286A (en) 1999-07-16 2001-02-06 Nippon Plast Co Ltd Insert molding and its manufacture

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