JPS5835579A - Manufacture of reflection type hologram - Google Patents

Manufacture of reflection type hologram

Info

Publication number
JPS5835579A
JPS5835579A JP13498881A JP13498881A JPS5835579A JP S5835579 A JPS5835579 A JP S5835579A JP 13498881 A JP13498881 A JP 13498881A JP 13498881 A JP13498881 A JP 13498881A JP S5835579 A JPS5835579 A JP S5835579A
Authority
JP
Japan
Prior art keywords
resin
layer
hologram
curable resin
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13498881A
Other languages
Japanese (ja)
Inventor
Yoshio Nagashima
長嶋 良夫
Toshiji Fujita
藤田 利治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP13498881A priority Critical patent/JPS5835579A/en
Publication of JPS5835579A publication Critical patent/JPS5835579A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02Details of features involved during the holographic process; Replication of holograms without interference recording
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024Hologram nature or properties
    • G03H1/0244Surface relief holograms
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00Laminate comprising a hologram layer
    • G03H2250/36Conform enhancement layer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00Laminate comprising a hologram layer
    • G03H2250/37Enclosing the photosensitive material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)

Abstract

PURPOSE:To enable observation from both sides, by sandwiching a UV hardenable resin between a reflection type hologram and a protective sheet, hardening it with UV rays, and protecting the metallic thin film of a light reflection layer. CONSTITUTION:A reflection type hologram 1 provided with no protective layer consists of a base layer 2 having a pattern on one side, and a light reflection layer 3 of a metallic thin film, and a UV hardenable resin 5 is placed between the layer 3 and the protective sheet 4 on an opposite plate 11 of UV transmitting glass. Polyvinyl chloride and polyacrylic resin good in adhesion to the resin 5 and small in UV absorption are used for the sheet 4. The resin 5 consists essentially of a prepolymer having a radically polymerizable unsatd. group and an ethylenically unsatd. monomer. The hologram 1 and the sheet 4 are pressed to enlarge the resin 5 on the upper surface of the sheet 4, and it is hardened with UV rays, and separated from the plate 11.

Description

【発明の詳細な説明】 本発明はホログラムの製造方法に関し、さらに詳しくは
光反射層を有する反射型ホログラムの製造方法に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a hologram, and more particularly to a method for manufacturing a reflection hologram having a light reflective layer.

ホログラムは通常銀塩感材上に作られるが、ホログラム
パターンを凹凸で形成しても得られる、すなわち、フォ
トレジストを塗布した乾板にホログラム像を露光した後
、現像して乾板上に凹凸像を得る。しかるのち、この像
を形成している凹凸面上に銅を蒸着して導電性を付与す
る。続いてこの銅面な負極としてニッケルメッキを施f
0取扱いに耐え得る厚さまでニッケル層を電着した後に
これを感光剤面より剥離し、次いで導電性を与えるため
に蒸着した銅を溶解して取り除き、ニッケルの面を露呈
させ、成形用の型が得られる。銅を除去した型の表面に
は前述の露光・現像により得られた凹凸面が凹凸逆にな
って複製されている。
Holograms are usually made on silver salt sensitive materials, but they can also be obtained by forming a hologram pattern with unevenness.In other words, a hologram image is exposed to light on a dry plate coated with photoresist, and then developed to form an uneven image on the dry plate. obtain. Thereafter, copper is deposited on the uneven surface forming the image to impart conductivity. Next, nickel plating was applied to this copper surface as a negative electrode.
After electrodepositing a nickel layer to a thickness that can withstand handling, this is peeled off from the photosensitive material surface, and then the vapor-deposited copper to provide conductivity is melted and removed to expose the nickel surface, which is then molded into a mold. is obtained. On the surface of the mold from which the copper has been removed, the uneven surface obtained by the above-described exposure and development is duplicated with the unevenness reversed.

この面もホログラム像を形成することはもちろんである
Of course, this surface also forms a hologram image.

このようにして得られた型のパターンを例えば熱可塑性
合成樹脂或は熱硬化性合成樹脂等の合成樹脂に転写成型
することにより透過型のホログラムを得ることができる
A transmission type hologram can be obtained by transfer-molding the mold pattern thus obtained onto a synthetic resin such as a thermoplastic synthetic resin or a thermosetting synthetic resin.

このような透過光にて鑑賞する透過型ホログラムのパタ
ーン面に真空蒸着、スパッタリング等の方法によって金
属薄膜を形成すれば、この金属薄膜が光反射層となって
反射型ホログラムが得られることになる。
If a thin metal film is formed by vacuum deposition, sputtering, or other methods on the patterned surface of a transmission hologram that is viewed using transmitted light, this thin metal film will become a light-reflecting layer and a reflection hologram will be obtained. .

従来の反射型ホログラムはこの金属薄膜が露出しており
、従ってスクラッチキズに弱く、一旦キズをつけてしま
うと商品としての効果はゼロに等しくなってしまうため
、その取扱いに多大の注意を要するものである。このよ
うなキズを防止するためパターン面である金属薄膜上に
保護層を設けることによりその取扱いのむずかしさは一
挙に解消するのである。
Conventional reflective holograms have exposed metal thin films, and are therefore susceptible to scratches, and once they are scratched, their effectiveness as a product is reduced to zero, so they must be handled with great care. It is. In order to prevent such scratches, by providing a protective layer on the metal thin film, which is the pattern surface, the difficulty of handling it can be solved at once.

本発明はこのような視点に基づいてなさjたもので、光
反射層である金属薄膜を良好に保護するとともに両面か
らの鑑賞を可能とする反射型ホログラムの製造方法を提
供するものである。
The present invention was made based on this viewpoint, and provides a method for manufacturing a reflection hologram that can protect the metal thin film that is the light reflection layer well and enable viewing from both sides.

以下に本発明を図面の実施例に基づき詳細に説明する。The present invention will be explained in detail below based on embodiments of the drawings.

第1図は本発明方法の模式的説明図であり、第2図は本
発明方法により製造されたホログラムの断面を表す説明
図である。
FIG. 1 is a schematic explanatory diagram of the method of the present invention, and FIG. 2 is an explanatory diagram showing a cross section of a hologram manufactured by the method of the present invention.

第1図に於いて、(1)は保護層が設けらtていない従
来の反射型ホログラムであり、これは片面罠パターンが
形成されてなる基層(2)及びこの基層(2)のパター
ン形成面に設けられた金属薄膜よりなる光反射層(3)
とから構成されている。
In FIG. 1, (1) is a conventional reflection hologram that is not provided with a protective layer. Light reflecting layer (3) made of a thin metal film provided on the surface
It is composed of.

このような反射型ホログラム(1)の光反射層(3)と
紫外線透過ガラス等よりなる対振(111上の保護材シ
ー ) (4)との間に紫外線硬化型樹脂(5)を置く
An ultraviolet curable resin (5) is placed between the light reflection layer (3) of such a reflection hologram (1) and the anti-oscillator (protective material sheet on 111) (4) made of ultraviolet transmitting glass or the like.

この保護材シートは硬化される紫外線硬化型樹脂との接
着が良く、かつ紫外線吸収の少ない材質例えば塩化ビニ
ル樹脂、アクリル樹脂等が適しており、更に加えて硬化
した樹脂層とほぼ等しい屈折率をもっているものである
ことが好ましい。なお、保護材シートについては、紫外
線を透過させることが前提となるが、着色してあっても
差支えない。この場合、特殊な効果を求めることもでき
る。
This protective material sheet is suitably made of a material that has good adhesion to the UV-curable resin to be cured and has low UV absorption, such as vinyl chloride resin or acrylic resin, and also has a refractive index almost equal to that of the cured resin layer. It is preferable that the Note that the protective material sheet is required to transmit ultraviolet rays, but it may be colored. In this case, it is also possible to obtain special effects.

次に紫外線硬化型樹脂について説明すると、その構成は
、ラジカル重合性の不飽和基を有するプレポリマーとエ
チレン性の不飽和基をもつモノマーを主成分とし、それ
に若干の重合開始剤と助剤を加えた構成で250〜38
0nmの領域、特に360nrr)付近の紫外光を照射
することによりモノマーが線状ポリマー間を架橋して三
次元の網目構造を形成するものである。このようなプレ
ポリマーとしては、例えばエポキシアクリレート、ウレ
タンアクリレート等があり、モノマーの例としては、n
−ブチルアクリレート、n−ブチルメタアクリレート等
がある。
Next, we will explain about ultraviolet curable resin. Its composition is mainly composed of a prepolymer having a radically polymerizable unsaturated group and a monomer having an ethylenically unsaturated group, and some polymerization initiators and auxiliaries. 250-38 with added configuration
By irradiating ultraviolet light in the 0 nm region, especially around 360 nrr), the monomer crosslinks the linear polymers to form a three-dimensional network structure. Examples of such prepolymers include epoxy acrylate, urethane acrylate, etc., and examples of monomers include n
-butyl acrylate, n-butyl methacrylate, etc.

この様な紫外線硬化型樹脂を第1図に示す様に配置し、
反射型ホログラム(1)を下降又は対振αυ及び保護材
シート(4)を上昇させつつ、反射型ホログラム(1)
と保護材シート(4)の間に紫外線硬化型樹脂(5)を
はさみつける形で押圧する。流動性の高い紫外線硬化型
樹脂(5)は保護材シート上面に拡がってうずく延ばさ
れると同時に、上側の反射型ホログラム(1)ツバター
ン面(5)に満たされてい(。
Arrange such ultraviolet curable resin as shown in Figure 1,
While lowering the reflective hologram (1) or raising the anti-vibration αυ and protective material sheet (4), the reflective hologram (1)
The ultraviolet curable resin (5) is sandwiched and pressed between the protective material sheet (4) and the protective material sheet (4). The highly fluid ultraviolet curable resin (5) spreads and undulates on the upper surface of the protective material sheet, and at the same time fills the brim-turning surface (5) of the upper reflective hologram (1).

紫外線硬化型樹脂が十分に薄く拡がった時点で、対振(
111の下側に配設した超高圧水銀灯等の紫外線ランプ
αのより紫外光を照射する。紫外線硬化型樹脂層の厚み
は1〜71μmとし、好ましくは25μm以下である。
When the ultraviolet curable resin has spread sufficiently thinly, the anti-oscillation (
Ultraviolet light is irradiated from an ultraviolet lamp α such as an ultra-high-pressure mercury lamp arranged below 111. The thickness of the ultraviolet curable resin layer is 1 to 71 μm, preferably 25 μm or less.

これは単に樹脂の節約だけでなく、より本質的には成形
後の変形を避けるためであり、又、紫外光の照射時間、
言い換えれば樹脂層の硬化時間が長くならないようにす
る為でもある。紫外光の照射は2KWの超高圧水銀灯で
照射距離25cmの場合、2〜5秒で良く、より強力な
紫外光であれば1秒又はそれ以下にすることも可能であ
る。
This is not only to save resin, but also to avoid deformation after molding, and also to reduce the irradiation time of ultraviolet light.
In other words, this is to prevent the curing time of the resin layer from becoming too long. Irradiation of ultraviolet light can be done for 2 to 5 seconds using a 2KW ultra-high pressure mercury lamp at an irradiation distance of 25 cm, and can be irradiated for 1 second or less if the ultraviolet light is more powerful.

紫外線硬化型樹脂が完全に硬化した時点で対置aIl上
から取り出すことにより第2図に示されるような金属薄
膜よりなる光反射層(3)を中心に、その両側に基層(
2)、紫外−硬化型樹脂層(5)及び保護材シート層(
4)が配された反射型ホログラムを得ることができる。
When the ultraviolet curable resin is completely cured, it is taken out from the opposite aIl, and a base layer (
2), UV-curable resin layer (5) and protective sheet layer (
4) can be obtained.

このように光反射層(3)の両面に樹脂層が配されるこ
とにより光反射層(3)を良好に保護でき、また表裏ど
ちら側からでも鑑賞可能となる。
By disposing the resin layer on both sides of the light-reflecting layer (3) in this manner, the light-reflecting layer (3) can be well protected and can be viewed from either the front or the back.

以上に述べたように、本発明によれば露出している金属
薄膜(光反射層)面に紫外線硬化型樹脂を配し、紫外線
を照射するだけでの極めて短時間で金属薄膜を被覆した
反射型ホログラムを得ることができ、また保護材シート
を用いたことにより比較的高価な紫外線硬化型樹脂を必
要最小限におさえることができ、コスト的にも十分見合
うものである。さらに紫外線硬化型樹脂は1101当り
1000〜6000本という様な極微細な金属薄膜面に
もよくなじみ、成型ムラが生じることはなく、従って鑑
賞時にパターンの乱れ等の不備が生じることもない。
As described above, according to the present invention, an ultraviolet curable resin is placed on the exposed metal thin film (light reflective layer) surface, and the metal thin film can be coated and reflected in an extremely short time by simply irradiating ultraviolet rays. It is possible to obtain a type hologram, and by using a protective sheet, the use of relatively expensive ultraviolet curable resin can be kept to the minimum necessary, and it is well worth the cost. Furthermore, the ultraviolet curable resin is well adapted to the surface of an extremely fine metal thin film with 1,000 to 6,000 lines per 1,101 parts, and does not cause uneven molding, so that defects such as pattern disturbances do not occur during viewing.

なお、上記実施例では保画材シートは硬化した紫外線硬
化型樹脂と密着の良いものを選んだが、硬化した紫外線
硬化型樹脂から容易に剥離するような材質、例えばポリ
エステル、ポリプロピレン。
In the above embodiments, the image retention material sheet was selected to have good adhesion to the cured ultraviolet curable resin, but it should also be made of a material that easily peels off from the cured ultraviolet curable resin, such as polyester or polypropylene.

等を使用した場合には、硬化後これを剥離することによ
り紫外線硬化型樹脂単体からなる保護層とすることも可
能である。
When a UV-curable resin is used, it is possible to obtain a protective layer made of a single UV-curable resin by peeling it off after curing.

なお、本方法により保護層を設ける際の基材配置構成は
前述の構成と全く逆にしてもよいことはもちろんである
。この場合、紫外線照射は上側からとなる。
It goes without saying that the arrangement of the base materials when providing the protective layer by this method may be completely reversed from the above-mentioned arrangement. In this case, the ultraviolet rays are irradiated from above.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示すものであり、第1図は本
発明方法の模式的説明図、第2図は本発明方法により得
られた反射型ホログラムの断面を示す説明図である。 (1)・・・反射型ホログラム (2)・・・基層 (
3)・・・光反射層 (4)・・・保護材シート(5)
・・・紫外線硬化型樹脂(111・・・対語 鰺・・・
紫外光源特許出願人 凸版印刷株式会社
The drawings show one embodiment of the present invention, and FIG. 1 is a schematic explanatory diagram of the method of the present invention, and FIG. 2 is an explanatory diagram showing a cross section of a reflection hologram obtained by the method of the present invention. (1)...Reflection hologram (2)...Base layer (
3)...Light reflective layer (4)...Protective material sheet (5)
...Ultraviolet curable resin (111...Antonym for mackerel...
Ultraviolet light source patent applicant Toppan Printing Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 凹凸パターンを有する光反射層が露出する反射型ホログ
ラムと保護材シートの間に紫外線硬化型樹脂を置き、前
記反射型ホログラムの光反射層を保護材シートに対面せ
しめて前記反射型ホログラムと基材シートとを近接せし
め、紫外線硬化型樹脂をはさみつけつつ両面から押圧し
、光反射層と保護材シートの間に紫外線硬化型樹脂が十
分に拡がった時点で保護材シートを通して紫外線を照射
して紫外線硬化型樹脂を硬化せしめてなる反射型ホログ
ラムの製造方法。
An ultraviolet curable resin is placed between a reflective hologram in which a light reflective layer having a concavo-convex pattern is exposed and a protective sheet, and the light reflective layer of the reflective hologram is made to face the protective sheet so that the reflective hologram and the base material Place the sheets close together and press them from both sides while sandwiching the UV curable resin. When the UV curable resin has sufficiently spread between the light reflective layer and the protective sheet, irradiate the UV rays through the protective sheet to remove the UV curable resin. A method for manufacturing a reflection hologram by curing a curable resin.
JP13498881A 1981-08-28 1981-08-28 Manufacture of reflection type hologram Pending JPS5835579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13498881A JPS5835579A (en) 1981-08-28 1981-08-28 Manufacture of reflection type hologram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13498881A JPS5835579A (en) 1981-08-28 1981-08-28 Manufacture of reflection type hologram

Publications (1)

Publication Number Publication Date
JPS5835579A true JPS5835579A (en) 1983-03-02

Family

ID=15141299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13498881A Pending JPS5835579A (en) 1981-08-28 1981-08-28 Manufacture of reflection type hologram

Country Status (1)

Country Link
JP (1) JPS5835579A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0145481A2 (en) * 1983-12-12 1985-06-19 E.I. Du Pont De Nemours And Company Improved holographic image transfer process
JPS6171195A (en) * 1984-09-13 1986-04-12 Nippon Steel Corp Manufacture of heat treated steel tube
US4758296A (en) * 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
US4906315A (en) * 1983-06-20 1990-03-06 Mcgrew Stephen P Surface relief holograms and holographic hot-stamping foils, and method of fabricating same
JPH03111949U (en) * 1990-03-02 1991-11-15
WO1994018609A1 (en) * 1991-09-30 1994-08-18 Matthiesen, Gerda Process, printing material and device for reproducing holographic fine structures and other diffraction grids on print products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040050A (en) * 1973-07-19 1975-04-12
JPS5122403A (en) * 1974-08-17 1976-02-23 Teac Corp
JPS5436566A (en) * 1977-08-25 1979-03-17 Matsushita Electric Ind Co Ltd Method of making tipptype conductive element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040050A (en) * 1973-07-19 1975-04-12
JPS5122403A (en) * 1974-08-17 1976-02-23 Teac Corp
JPS5436566A (en) * 1977-08-25 1979-03-17 Matsushita Electric Ind Co Ltd Method of making tipptype conductive element

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758296A (en) * 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
US4906315A (en) * 1983-06-20 1990-03-06 Mcgrew Stephen P Surface relief holograms and holographic hot-stamping foils, and method of fabricating same
US5948199A (en) * 1983-06-20 1999-09-07 Mcgrew; Stephen Paul Surface relief holograms and holographic hot-stamping foils, and method of fabricating same
EP0145481A2 (en) * 1983-12-12 1985-06-19 E.I. Du Pont De Nemours And Company Improved holographic image transfer process
JPS6171195A (en) * 1984-09-13 1986-04-12 Nippon Steel Corp Manufacture of heat treated steel tube
JPH03111949U (en) * 1990-03-02 1991-11-15
WO1994018609A1 (en) * 1991-09-30 1994-08-18 Matthiesen, Gerda Process, printing material and device for reproducing holographic fine structures and other diffraction grids on print products

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