JPH07261647A - Formation of emboss hologram and article with emboss hologram - Google Patents

Abstract

PURPOSE:To stick an emboss hologram to various articles at low cost by forming a resin layer on a base material, pressing the emboss surface of a emboss hologram film to the resin layer to transfer the emboss surface and stripping the emboss hologram film after curing or hardening the resin layer in this state. CONSTITUTION:An printing ink is, for example, prepared by mixing benzophenone with bifunctional urethane acrylate. Next, for example, the ink is printed on the surface part of a dial plate 1 to form an ink layer. After a solvent in the ink layer is evaporated, the emboss surface of a transparent rainbow emboss hologram film is pressed to the surface of the ink layer, the ink layer is irradiated with ultraviolet ray and the resin is hardened. Next, the film is peeled, a watch member is adhered to the dial plate 1 and the dial plate for watch having the emboss hologram transferred to the ink layer part is obtained. The dial plate 1 for watch is clearly changed with the color of the ink layer part 2 of the emboss hologram by viewing from different angles and has high decorativeness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a resin embossed hologram on a base material such as cloth, plastic film, paper, metal, glass, plastic molded article, adhesive sheet, etc., and an article with an embossed hologram. , Watch face and other watch parts, stickers,
The present invention relates to a method of forming an embossed hologram such as an image hologram or a rainbow hologram on a clothing article or a nameplate as a decoration, and an article provided with the embossed hologram formed by such a method.

[0002]

2. Description of the Related Art Recently, an embossed hologram in which interference fringes corresponding to phase information of light rays are recorded on the film surface by unevenness,
Publishing, packaging, premium, POP relationship,
It is used in a wide range of fields such as forgery prevention. For example, the rainbow embossed hologram film changes into various beautiful colors such as rainbow depending on the viewing angle, and is widely used for the purpose of decorating various articles.

[0003]

When attaching an embossed hologram film to various articles, it is attached with an adhesive or a sticker in the form of an adhesive. Such an embossed hologram film is expensive, and also costs in the process of attaching it to various articles. In addition, it is complicated to insert a plurality of embossed hologram patterns in one article or decoration pattern.

An object of the present invention is to provide a method for forming an embossed hologram which can attach the embossed hologram to various articles at low cost. According to the method of the present invention, it is possible to relatively easily insert a plurality of embossed hologram patterns in one article or decoration pattern.

[0005]

According to the present invention, at least a part of a base material such as cloth, plastic film, paper, metal, glass, plastic molded article, adhesive sheet, surface-treated article by plating or painting, etc. A resin layer is formed by printing such as screen printing or painting, and the embossed surface of the embossed hologram film is pressed against the surface of the resin layer to transfer the embossed hologram to the surface of the resin layer, and the resin layer is cured in that state. A method for forming an embossed hologram on a base material is provided, wherein the embossed hologram film is peeled off after being solidified. As the embossed hologram film, solvent resistance,
Polyethylene terephthalate resin is preferable because of its physical properties such as chemical resistance and heat resistance.

Further, according to the present invention, an article with an embossed hologram such as a timepiece dial having an embossed hologram formed by the method for forming an embossed hologram as described above and other timepiece parts, stickers, clothing, nameplates, etc. Will be provided.

The present invention will be described in detail below.

First, an actinic radiation curable resin is used as a resin, a transparent actinic ray is used as the embossed hologram film, and the resin layer is irradiated with the activated ray through the embossed hologram film. The resin is cured by curing the resin layer or, if the base material is transparent to the activation line, irradiating the resin layer with the activation line through the transparent base material regardless of the transparency of the embossed hologram film. An embossed hologram can be formed by curing the layer.

That is, the actinic radiation curable resin is applied to at least a part of the base material by printing or painting, and the embossed surface of the embossed hologram film is pressed against the surface of the formed actinic radiation curable resin layer. In this state, the resin layer is irradiated with activation rays through the embossed hologram film to cure the resin, and then the embossed hologram film is peeled off to form a cured embossed hologram resin layer on the base material. For example, when the base material is transparent to the activation rays such as a watch cover glass, instead of irradiating the activation rays to the activation ray-curable resin layer through the embossed hologram film, the activation rays are not exposed to the activation rays. It goes without saying that the actinic radiation curable resin layer may be irradiated with light through the transparent base material. It is also possible to irradiate the actinic radiation curable resin layer with actinic radiation from both sides.

As the actinic radiation curable resin, an ultraviolet curable resin, a far infrared curable resin, a microwave curable resin,
Examples thereof include electron beam curable resins, and among them, ultraviolet curable resins are preferable for the reason that the curing device is compact and the productivity is good. For example, urethane acrylate-based, epoxy acrylate-based, other various acrylate-based resins, epoxy vinyl ether-based resins and the like can be used. For example, by changing the catalyst system in such resins, various activation lines as described above can be used. It is possible to use an actinic radiation curable resin that is cured by irradiation with.

Further, a room temperature curable resin or a thermosetting resin is applied to at least a part of the base material by printing or painting, and the embossed surface of the embossed hologram film is pressed against the surface of the formed resin layer. By curing each of the resins at room temperature or heat and then peeling off the embossed hologram film, a cured embossed hologram resin layer can be formed on the base material.

As the room temperature curable resin, it is possible to use a two-pack type urethane resin, epoxy resin, and other various resins used as ink or paint. As the thermosetting resin, an epoxy resin, an acrylated alkyd polyol resin, and various resins used as inks and paints can be used.

Further, hot melt resin is applied to at least a part of the base material, and the embossed surface of the embossed hologram film is pressed and heated on the surface of the formed resin layer, and then the resin layer is cooled and solidified, Next, by peeling off the embossed hologram film, a solidified embossed hologram resin layer can be formed on the base material.

The hot-melt resin mainly contains various thermoplastic resins such as polyvinyl acetate-based resin, ethylene-vinyl acetate-based resin, ethylene-vinyl acetate-acrylate-based resin and nylon-based resin, and in some cases, wax. Things can also be used.

The resins as described above may contain a plasticizer, a reactive monomer, a pigment, a dye, and various other additives. In the case of reactive monomers, this also makes the viscosity of the resin suitable for coating.

The base material includes a picture or a pattern including elements such as letters, abbreviations, marks, and object images. At least a part of the base material is coated with the resin as described above, and embossed according to the procedure described above. A hologram may be formed. The above-mentioned pattern or pattern is usually provided on the base material by printing. However, for example, when the base material is a cloth, it may be provided by dyeing or printing. In this case, the resin is applied so as to cover a part of the pattern or pattern, and an embossed hologram is formed on that part,
The decorative effect can be further improved. In the present specification, the “object image” is a concept including a human image, an animal image, a plant image, a landscape image, and the like, and the “design or pattern” is a character, an abbreviation, a mark, an object image, or the like. The overall pattern concept includes the above.

The resin can be applied by various coating methods such as spray coating and various printing methods such as offset printing, letterpress printing and screen printing. It is preferable to print and apply the resin on a partial or substantially entire surface of the base material by a screen printing method. According to the screen printing method, the thickness of the resin layer can be made relatively large and uniform. When printed partially, the embossed hologram is formed only in that part, and the pattern of the embossed hologram or the pattern of the pattern can be provided on the base material.
In addition, in the case of a small base material such as the dial of a wristwatch,
The resin may be applied by dropping. When using a solvent when applying the resin, the embossed hologram film is pressed after evaporating the solvent, but when the base material is a cloth, it is possible to evaporate the solvent from the back surface, so in a state where the resin contains the solvent. The embossed hologram film may be pressed.

When the resin is applied to the base material according to screen printing or other printing method, the resin may be colorless, but the resin is colored, and a pattern or a pattern is provided on the base material by monocolor printing or multicolor printing. May be. Resin coloring is
It can be performed using pigments and dyes of various colors including black, white, metallic color, fluorescent color and the like. The portion of this pattern or pattern is used as an embossed hologram resin layer.

Further, a resin layer is partially formed on the base material, the embossed surface of the embossed hologram film is pressed against the surface of the resin layer, the embossed hologram is transferred to the surface of the resin layer, and in that state, the resin is removed. After hardening or solidifying
An operation procedure consisting of a series of steps of peeling off the embossed hologram film is repeated a plurality of times, and the hologram layer of the embossed hologram on the resin layer forming portion and the surface of each resin layer formed in each operation procedure is made different. You can also In this case, it is preferable to partially form the resin layer by a screen printing method for ease of operation. In the case of this embodiment, the embossed hologram film used in each operation procedure is usually different, but the same embossed hologram film may be pressed against the resin layer at different angles. In the case of this aspect, a plurality of different embossed hologram patterns can be provided on one base material, and decorativeness can be improved.

The embossed hologram transferred / formed on the surface of the resin layer as described above can be made into an aggregate shape composed of a plurality of portions having different directions of the uneven interference fringes as shown in FIG. . FIG. 1 shows the direction of the uneven interference fringes of the embossed hologram of each block in the direction of hatching for some blocks as a representative.
Such an embossed hologram can be obtained by a method in which the above-described operation procedure is repeated a plurality of times, and even if one embossed hologram film already has such an aggregated embossed hologram, one operation can be easily performed. Can be obtained by the procedure. In such an embossed hologram, the colors of the blocks look different from each other when viewed from a certain angle, which is highly decorative.

Further, the embossed hologram transferred / formed on the surface of the resin layer has a pattern consisting of a picture or a pattern including two or more elements such as letters, abbreviations, marks and object images, and each element is used as a unit. The embossed hologram may have uneven interference fringes in at least two directions in which the directions of uneven interference fringes are different. For example, in the case of an embossed hologram pattern composed of characters and an object image, if the directions of the uneven interference fringes of the characters and the object image are different, the colors of the characters and the object image will appear different from each other when viewed from a certain angle. Becomes higher.

After peeling off the embossed hologram film, at least on the embossed hologram resin layer,
A transparent resin layer having a color different from that of the resin layer, including a refractive index and / or a colorless color, may be applied by printing or painting. For example,
When the embossed hologram resin layer is colored black or blue, and a colorless transparent resin (which preferably has a refractive index different from that of the embossed hologram resin layer) is applied onto the embossed hologram resin layer, the embossed hologram resin layer has a brilliance. Will be calm. Alternatively, a metal such as aluminum may be vapor-deposited on the embossed hologram resin layer (preferably masked and vapor-deposited only on the embossed hologram resin layer), and then a transparent resin may be applied. In these cases, it is preferable to make the (colorless) transparent resin layer a smooth and flat surface by lapping.

As the base material, cloth, plastic film, paper, metal, glass, plastic molded product, adhesive sheet, surface-treated product by plating or painting, etc. can be used according to the purpose of use of the present invention. Wood, ceramics, etc. can also be used. For example, in the case of various timepiece parts such as a timepiece dial, it is preferable to use a base material on which a mirror surface, a basis weight, a concavo-convex pattern and the like are formed and which has been subjected to surface treatment such as plating and painting.

The embossed hologram article according to the present invention includes various timepiece parts, stickers, apparel such as T-shirts, and nameplates.
Examples include various products such as various cards, glass products such as cups, ceramics, various plastic molded products, and toys.

The timepiece parts to which the present invention is applicable include
Examples thereof include dials, cases, cover glasses, wristbands, exterior parts such as bezels, and functional parts such as a main plate, weight hub, day board and date board.

[0026]

According to the present invention, an embossed hologram film (which may be a commercially available one) can be repeatedly used to attach the embossed hologram to the base material, and various articles with the embossed hologram can be provided at low cost. it can. According to the method of the present invention, for example, a resin is partially applied on the base material by printing, and a plurality of embossed hologram patterns are formed in one base material by a method of sequentially repeating the above embossed hologram forming operation procedure. Can be entered relatively easily.

[0027]

EXAMPLES In order to more specifically describe the present invention, examples will be described below, but these examples do not limit the scope of the present invention.

Example 1 Benzophenone 4 was added to 100 parts by weight of a bifunctional urethane acrylate (M-1600, manufactured by Toagosei Chemical Industry Co., Ltd.).
Mix parts by weight, add an appropriate amount of solvent to an appropriate viscosity,
A clear screen printing ink was prepared.

The above ink is screen-printed partially on the surface of a dial face base material (dial face substrate) for a watch on which a mirror surface, a basis weight, a concavo-convex pattern, etc. are formed and which has been subjected to surface treatment such as plating and painting. And printed with an ink layer. After evaporation of the solvent of the ink layer, the embossed surface of a commercially available transparent rainbow embossed hologram film was pressed against the surface of the ink layer, and the ink layer was irradiated with ultraviolet rays through the transparent embossed hologram film to cure the ink layer resin. The embossed hologram film is peeled off, and a time character member is adhered to the timepiece dial base material (the time character may be printed) to obtain a timepiece dial having the embossed hologram transferred to the ink layer portion. It was FIG. 2 is a plan view of the timepiece dial 1 thus obtained.
In FIG. 2, reference numeral 2 denotes an ink layer portion of the transfer embossed hologram, and 12 rectangles drawn inside along the outer periphery of the dial 1 are hour-shaped members.

When the viewing angle was changed, this timepiece dial had a vivid color change in the ink layer portion 2 of the embossed hologram, and was highly decorative.

Example 2 Trimethylolpropane PO (propylene oxide) modified triacrylate (manufactured by Toagosei Kagaku Kogyo Co., Ltd.) was mixed with an effective amount of acetophenone, and an appropriate amount of solvent was added,
A transparent screen printing ink having an appropriate viscosity was prepared.

The above ink is screen-printed on a part of the surface of a timepiece dial base material (dial board) on which a mirror surface, a basis weight, a concavo-convex pattern and the like are formed and which has been subjected to surface treatment such as plating and painting. To print the first ink layer. After the solvent of the first ink layer is evaporated, the embossed surface of a commercially available transparent rainbow embossed hologram film is pressed against the surface of the first ink layer, and the ultraviolet ray is applied to the first ink layer through the transparent embossed hologram film to form an ink layer. The resin was cured and the embossed hologram film was peeled off.

Next, the above ink was printed by screen printing on a portion of the surface of the timepiece dial base material different from the above first ink layer to form a second ink layer. The embossed surface of another commercially available transparent rainbow embossed hologram film having a hologram pattern different from that of the embossed hologram film is pressed against the surface of the second ink layer, and ultraviolet rays are passed through the transparent embossed hologram film to the second ink layer. And the ink layer resin was cured. The embossed hologram film is peeled off, and an hour-character member is adhered to the surface of the timepiece dial base material (the hour-character may be printed) to form the first ink layer and the second ink layer.
A timepiece dial having different patterns of transferred embossed holograms on the ink layer was obtained. FIG. 3 is a plan view of the timepiece dial 1 thus obtained.
In FIG. 3, 2 is the first of the transfer embossed hologram
An ink layer portion is shown, 3 is a second ink layer portion of the transfer embossed hologram, and twelve rectangles drawn inside along the outer circumference of the dial 1 are hour-shaped members.

In this watch dial, when the viewing angle is changed, the colors of the first ink layer portion 2 and the second ink layer portion 3 of the embossed hologram change vividly, and the hologram patterns and colors of both portions are different. Since it looks like, it was highly decorative.

Example 3 A red pigment was added to a polyurethane resin for dry lamination (Polybond AY-651A / C, manufactured by Sanyo Kasei Co., Ltd.) to prepare a screen printing ink. This ink was used to print characters on a part of the chest of a T-shirt. The ink layer was made thicker (about 20 μm) so that the unevenness of the cloth would not appear as much as possible on the surface of the ink layer.

The embossed surface of a commercially available transparent rainbow embossed hologram film is pressed against the surface of the ink layer,
The ink layer resin was left standing to cure at room temperature. When the embossed hologram film was peeled off, a T-shirt having a character-shaped embossed hologram on a part of the chest was obtained.

This T-shirt had a high decorativeness because the color of the embossed hologram portion changed vividly when the viewing angle was changed.

Example 4 A polyethylene terephthalate film was used as a base material, which was obtained by multi-color printing of characters and human images on a pressure-sensitive adhesive sheet with a separator vapor-deposited on aluminum.

A thermosetting acrylated alkyd polyol (HV-7) was formed only on the letters on the base material.
No. 0 (manufactured by Soken Chemical Industry Co., Ltd.) was mixed with an appropriate amount of a solvent to prepare a screen ink, which was screen printed to form an ink layer. After the solvent of the ink layer was evaporated, the embossed surface of the commercially available transparent rainbow embossed hologram film was pressed against the surface of the ink layer and heated to thermally cure the ink layer resin. When the embossed hologram film was peeled off, a sticker having an embossed hologram only in the character portion was obtained.

This sticker changes the viewing angle
The color of the letter part, which is an embossed hologram, changed vividly and was highly decorative.

Example 5 A screen ink was prepared by adding an appropriate amount of a solvent to an ethylene-vinyl acetate-acrylic resin (EVA-9020, manufactured by Hitachi Chemical Polymer Co., Ltd.) which is a hot melt resin.

Using this ink, an ink layer was formed on a pressure-sensitive adhesive sheet of paper with a separator by screen printing. The ink layer was made thicker (about 20 μm) so that the unevenness of the paper surface did not appear as much as possible on the surface of the ink layer.
After solvent evaporation of the formed ink layer, the embossed surface of a commercial rainbow embossed hologram film is pressed against the surface of the ink layer, heated to melt the ink layer resin, and then cooled to cool the embossed hologram surface of the ink layer. Transferred to. When the embossed hologram film was peeled off, an adhesive sheet having an embossed hologram on the entire surface was obtained. This embossed hologram pressure-sensitive adhesive sheet was cut into a mark to prepare a sticker.

This sticker changes the viewing angle
The color of the embossed hologram changed vividly and was highly decorative.

In the above examples, the screen printing method was used for the simplicity of the experiment, but the present invention can be carried out by using various printing methods such as offset printing and letterpress printing, and various coating methods such as spray painting. Needless to say. Moreover, although the base material, the embossed hologram film, and the like are limited, it is needless to say that the various materials mentioned above can be used.

[0045]

INDUSTRIAL APPLICABILITY According to the present invention, an embossed hologram film (which may be a commercially available one) can be repeatedly used to attach an embossed hologram to a base material, and various articles with an embossed hologram can be provided at low cost. And mass production is possible. According to the method of the present invention, for example, a resin is partially applied on the base material by a printing method such as screen printing, and the embossed hologram forming operation procedure described above is sequentially repeated to form a single base material. It is also possible to insert a plurality of embossed hologram patterns relatively easily.

[Brief description of drawings]

FIG. 1 is a plan view of an example of an embossed hologram that is in the form of an aggregate composed of a plurality of portions in which the directions of uneven interference fringes formed according to an embodiment of the present invention are different.

FIG. 2 is a plan view of an example of a timepiece dial on which an embossed hologram is formed according to an embodiment of the present invention, and 12 rectangles drawn inside along the outer periphery of the dial are hour-shaped members. .

FIG. 3 is a plan view of an example of a timepiece dial on which an embossed hologram is formed according to an embodiment of the present invention, and twelve rectangles drawn inside along the outer circumference of the dial are hour-character members. .

[Explanation of symbols]

 1 Clock face plate 2 Ink layer portion of transfer embossed hologram 3 Ink layer portion of transfer embossed hologram

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Watanabe 2 6663 Funatsu, Kawaguchiko-cho, Minamitsuru-gun, Yamanashi Prefecture Kawaguchiko Precision Co., Ltd. (72) Inventor Yukio Takamizawa 2-44-12 Hagoromocho, Tachikawa-shi Company Cosmotech

Claims (10)

[Claims] 1. A cloth, a plastic film, a paper, a metal,
A resin layer is formed by printing or coating such as screen printing on at least a part of a base material such as glass, a plastic molded product, an adhesive sheet, or a surface-treated product by plating or coating, and the embossed surface of the embossed hologram film is the resin layer. A method for forming an embossed hologram on a base material, characterized in that the embossed hologram is transferred to the surface of the resin layer by pressing the surface of the resin layer, and the resin layer is cured or solidified in that state, and then the embossed hologram film is peeled off. . 2. The resin layer is made of an ultraviolet curable resin, the embossed hologram film is transparent to ultraviolet light, and the resin layer is cured by irradiating the resin layer with ultraviolet light through the transparent embossed hologram film. The embossed hologram forming method according to claim 1, wherein 3. The base material comprises letters, abbreviations, marks,
The embossed hologram forming method according to claim 1 or 2, wherein the resin layer is formed on at least a part of the base material including a pattern or a pattern including elements such as an object image. 4. A resin layer is partially formed on the base material, and the embossed surface of the embossed hologram film is pressed against the surface of the resin layer to transfer the embossed hologram to the surface of the resin layer. After the resin layer is cured or solidified, the operating procedure consisting of a series of steps of peeling the embossed hologram film is repeated a plurality of times, and the resin layer forming portion in each operating procedure is different and formed respectively. The embossed hologram forming method according to any one of claims 1 to 3, wherein the hologram pattern of the embossed hologram on the surface of each resin layer is different. 5. The embossed hologram transferred / formed on the surface of the resin layer is in the form of an aggregate composed of a plurality of portions having different directions of uneven interference fringes. The method for forming an embossed hologram according to any one. 6. The embossed hologram transferred / formed on the surface of the resin layer has a pattern composed of a picture or a pattern including two or more elements such as letters, abbreviations, marks, and object images, and each element is The embossed hologram forming method according to any one of claims 1 to 5, wherein the unit has at least two directions of uneven interference fringes having different directions of uneven interference fringes of the embossed hologram. 7. The base material for a timepiece dial and other timepiece parts, on which a mirror surface, a basis weight, a concavo-convex pattern, etc. are formed and which has been subjected to a surface treatment such as plating and painting. The embossed hologram forming method according to claim 1, wherein the embossed hologram is formed. 8. An article with an embossed hologram formed by the method for forming an embossed hologram according to any one of claims 1 to 7. 9. The article with an embossed hologram according to claim 8, which is in the form of a timepiece dial or other parts for a timepiece. 10. An article with an embossed hologram according to claim 8, which is in the form of a sticker, clothing or nameplate.