JPH04308797A - Partially irregular image indication matter and method for forming partially irregular image - Google Patents

Abstract

PURPOSE:To form a good-design image having an irregular part and a smooth transferred or colored image part on the surface of a sheet, an article, or the like. CONSTITUTION:An original 4 is overlapped on an image forming material 10 obtained by laminating an uncured photo-setting resin layer and a light- transmitting film on a substrate of a recessed and projected form. This is exposed to light, whereby the exposed part of the photo-setting resin layer is cured. Thereafter, the substrate is released. After the release of the substrate, the unexposed part of the photo-setting resin layer is smoothed. Therefore, a color is transferred or produced on the smoothed unexposed part, and the unexposed part is exposed to light all over to be cured. In this manner, the transferred or colored image formed on the smooth part has a sharpness, and a good design is exhibited as a whole. In addition, such an image can be formed by dry processing.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a partially uneven image display object having a partially uneven image on the same surface which is composed of an uneven portion and a smoothed transfer or colored image, and a partially uneven image display object having such a partially uneven image. Concerning the method of forming.

0002

[Prior art and problems to be solved by the invention] Conventionally,
Films that have been given unevenness by embossing, sandblasting, etc. are then given a desired pattern using various methods.
It is used in various fields such as decorative films. However, if an image is placed directly on an uneven surface, the image will follow the unevenness, and the texture will be significantly inferior to that when the image is placed on a smooth surface.

For example, in order to form a metal vapor deposition image on an uneven surface, conventional techniques for forming a metal vapor deposition image such as etching method and peeling development method (Japanese Patent Publication No. 56-13305, Japanese Patent Publication No. 56-20533) etc.), it is necessary to deposit metal directly on the uneven screen, but in this case, the metal vapor deposition also becomes uneven and loses its metallic luster. Furthermore, in the peel development method, the metal vapor deposited layer cannot be peeled off uniformly, and even after peeling, it remains partially on the uneven surface. Furthermore, a method of providing a metal vapor deposition layer on a solvent-soluble subbing layer (Japanese Unexamined Patent Publication No. 1983-
76833), it is possible to obtain a flat and glossy metal vapor deposited layer by providing an undercoat layer in the case of extremely shallow irregularities, but when the irregularities become deep, it is difficult to fill in the irregularities with the undercoat layer. As a result, the metal vapor deposited layer is also flat and not shiny, making it impossible to obtain sufficient design.

[0004] The same is true when a colored image is placed on an uneven surface by screen printing or the like; if the unevenness of an embossed film becomes deep, the colored image itself becomes uneven, and the texture of the colored image is significantly inferior. turn into. The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a highly designed image display having a smooth transferred or colored image portion on an uneven surface. A further object of the present invention is to provide a method of forming a partially uneven image having an uneven part and a smooth transferred or colored image part on the same surface by a dry process.

[0005]

[Means for Solving the Problems] The partially uneven image display object of the present invention which achieves the above object has a part whose one side is composed of an uneven part and a smoothed transfer image part or a colored image part. The partially uneven image forming method of the present invention has a partially uneven image forming material that is formed by sequentially laminating a photocurable resin layer and a light-transmitting member on a base material having an uneven shape. After exposing the original to light by overlaying the original on the photocurable resin layer and curing only the exposed portion of the photocurable resin layer into an uneven shape corresponding to the base material, the base material is peeled off, and a transfer layer is further applied to the photocurable resin layer. After overlapping the transfer layer of the transfer member, the entire surface is exposed to light through a light-transmitting member and the transfer member is peeled off, so that the transfer layer smoothed by the transfer layer is applied to the portion other than the uneven portion. A partially uneven image having a colored image is formed. Further, in the partially uneven image forming method of the present invention, an original is superimposed on a light-transmitting member of a partially uneven image-forming material, which is formed by sequentially laminating a photocurable resin layer and a light-transmitting member on a base material having an uneven shape, and then exposed to light. After curing only the exposed parts of the photocurable resin layer into an uneven shape corresponding to the base material, the base material is peeled off, and colored powder is further toned on the photocurable resin layer and fixed to the unexposed parts. After removing the excess colored powder, if necessary, the entire surface is exposed through a light-transmitting member to form a partial uneven image having a colored image smoothed by the colored powder in areas other than the uneven areas. It is something that forms.

The present invention will be explained in detail below with reference to the drawings. In the partially uneven image display object of the present invention, as shown in FIG.
and the smoothed transferred image portion or colored image portion 31b
The part on which the partial uneven image is formed is made of a photocurable resin, and the uneven part 31a has an uneven shape formed by a partially uneven image forming material which will be described in detail later. The transfer image portion or the colored image portion 31b is colored with a transfer member or colored powder, and is a smoothed portion. The article 3 may be a sheet-like article as shown in the figure, or it may be a sheet-like article made of a photocurable resin adhered to the surface of another article.

Next, as shown in FIG. 2, the partially uneven image forming material 10 used in the partially uneven image forming method of the present invention includes a base material 11 having an uneven shape on at least one surface, and a photocurable resin layer 12. It has a structure in which a light transmitting member 13 and a light transmitting member 13 are sequentially laminated. The base material 11 is provided with irregularities by sandblasting or the like, at least in the portion where the photocurable resin layer 12 is laminated, and has appropriate mold releasability. The material does not particularly matter, but examples include polyvinyl chloride film, polyethylene terephthalate film,
Examples include acetate film and glass plates. In some cases, it is also possible to impart mold releasability using a mold release agent or the like.

The photocurable resin layer 12 generally contains a photopolymerizable compound, that is, a polymer, oligomer, or monomer having a radically polymerizable double bond, and a photopolymerization initiator and a sensitizer. Contains a non-reactive organic polymer binder, a thermal polymerization inhibitor, and other additives as necessary. Particularly preferred photopolymerizable compounds for the purpose of the present invention include methacrylic acid, methacrylic acid esters such as methyl methacrylate, butyl methacrylate, and 2-hydroxyethyl methacrylate, styrene, N-vinylpyrrolidone, acrylonitrile, tetraethylene glycol diacrylate, and polyethylene glycol. diacrylate, 1,6
- Low molecular weight photopolymerizable compounds such as hexanediol diacrylate, neopentyl glycol diacrylate, trimethylolpropane triacrylate, and pentaerythritol triacrylate, or high molecular weight compounds such as urethane acrylate, epoxy acrylate, polyester acrylate, and unsaturated polyester. It is a photopolymerizable compound, and one or more of these can be used.

As photopolymerization initiators, benzophenone,
Benzophenone type such as 3,3-dimethyl-4-methoxybenzophenone, benzoin type such as benzoin isopropyl ether, benzyl dimethyl ketal, thioxanthone type such as 2-chlorothioxanthone, 2,4-diethylthioxanthone, 2-hydroxy -2-methyl-1-
One or more conventionally known photopolymerization initiators such as acetophenone such as phenylpropan-1-one and 1-hydroxycyclohexylphenylketone can be used.

The organic polymer binder is a non-reactive polymer that is thermoplastic and has excellent compatibility with photopolymerizable compounds, such as polyvinyl chloride, polymethacrylic acid, polyvinyl ether, and polymethacrylic acid ester. , polyamide, urethane resin, epoxy resin, etc. can be used. As the thermal polymerization inhibitor, hydroquinone, P-methoxyphenol, etc. can be used.

Furthermore, dyes and pigments can be added as additives to the extent that they do not inhibit photocuring. A film or a sheet is used as the light-transmitting member 13 depending on the purpose, and examples thereof include polyethylene terephthalate, acetate, polyvinyl chloride, glass, and the like. Further, if necessary, adhesion-facilitating treatment such as corona treatment can be applied.

Here, the interfacial adhesive force between the base material 11 and the photocurable resin layer 12 is independent of whether the photocurable resin layer 12 is cured or uncured.
It is necessary that the internal cohesive force of the photocurable resin layer 12 and the interfacial adhesive force between the photocurable resin layer 12 and the light-transmitting member 13 be smaller. On the other hand, as the transfer member used in the present invention, a metal vapor-deposited sheet in which a metal vapor-deposited layer of aluminum, copper, etc. is provided on a predetermined base material, or a coloring material coated sheet in which a colored resin layer is provided can be used. Further, as the colored powder for toning the unexposed photocurable resin layer 12, pigments, carbon black, PPC toner, etc. can be used.

A method of forming a partially uneven image in the above configuration will be explained below. First, as shown in FIG. 3, a document 4 on which a predetermined light-opaque positive or negative pattern, characters 4a, etc. are formed is brought into close contact with the light-transmitting member 13 side of the partially uneven image forming material 10. This document 4 is exposed to light. As a result, the photocurable resin in the exposed portion 12a is cured in a manner corresponding to the uneven shape of the base material 11, while the unexposed portion 12b remains fluid and sticky. Therefore, after peeling off the base material 11 as shown in FIG. 4, the photocurable resin layer 12 and the metal vapor deposited layer 51 of the metal vapor deposited sheet 5 are laminated as shown in FIG. 13 to harden the unexposed portion 12b, and then peel off the metal vapor deposited sheet 5 to obtain a smooth metallic luster image 52 on the portion that was the unexposed portion 12b (
Figure 6). Note that by using a coloring material coated sheet 6 instead of the metal vapor deposited sheet 5, a colored image 62 is formed on the unexposed portion 12b.
You can also get Furthermore, by using different transfer members for different parts, it is possible to improve the design, such as obtaining a multicolored image.

In addition, if the light-transmitting member 13 is thick like a sheet or a plate and resolution becomes a problem during exposure, a light-transmitting material may be used for the base material 11 and the light may be exposed from the base material 11. After fixing the colorant, front exposure may be performed using the light-transmitting member 13. When using colored powder, after partially curing the photocurable resin and peeling off the base material 11 as shown in FIG. 4, an unexposed portion 12b that remains fluid and sticky
The colored powder 7 is toned and fixed (FIG. 7). Thereafter, excess colored powder that has not been fixed is removed, and if necessary, the entire surface is further exposed to light through the light-transmitting member 13, thereby forming a partially uneven image having a smoothed colored image 61.

The partially uneven image display object having the partially uneven image thus obtained can be used as it is for decoration, or the sheet-like object can be attached to other articles to enhance the design of the article. can do.

[0016]

[Examples] The present invention will be explained below with reference to Examples. Example 1 A photocurable resin solution having the following composition was prepared. Polyester (Toyobo Byron 200)
60g Tetraethylene glycol diacrylate
30g benzophenone

2.6g 4,4'-diethylaminobenzophenone
0.4g methyl ethyl ketone

86.4g Toluol

86.4g EC this solution
After coating with a wire bar on the treated 75 μm polyester film 13, it was dried in an oven at 100° C. for 90 seconds.
A photocurable resin layer 12 of about 10 μm was obtained.

On top of this, the processed surface of the sandblasted polyester film 11 was aligned with the photocurable resin layer 12 and laminated using a heat laminator at 50° C. and 3 m/min to form a partially uneven image forming material as shown in FIG. Got 10. The original 4 was placed on top of this as shown in Figure 3, exposed for 25 seconds from a 2kW high-pressure mercury lamp 1 m away, and then the sandblasted polyester film 1 was peeled off.
A partially matte film 20 in which the exposed portion became matte was obtained.

Next, an aluminum vapor-deposited film 5 in which a thin aluminum film of 100 nm in thickness is provided on one side of a polyester film with a thickness of 100 μm by vacuum vapor deposition is applied, and an aluminum vapor-deposited surface 51 is formed on the photocurable resin layer 12 of the partially matte film 20. In addition, using a heat laminator at 50℃,
Lamination was carried out at 3 m/min. Furthermore, the polyester film 13 (light-transmitting film) of the partial matte film 20
After exposure for 25 seconds from a 2 kW high-pressure mercury lamp 1 m away (FIG. 5), the aluminum vapor-deposited film 5 was peeled off, leaving a partial matte film 30 on which a glossy aluminum image 52 was formed other than the matte portion as shown in FIG. Obtained.

This partially matte film 30 had an extremely high design quality, which could not be obtained by conventional methods, as it had a partially metallic glossy image on the matte surface. Example 2 A photocurable resin solution was prepared in the same manner as in Example 1, and this was
It was coated on a C-treated polyester film 13 of 75 μm and dried to obtain a photocurable resin layer 12 of about 10 μm. Furthermore, a polyvinyl chloride film 11 embossed in a matte finish was laminated thereon at 50° C. at 3 m/min to obtain a partially uneven image forming material 10 as shown in FIG.

[0020] The original 4 is placed in close contact with this as shown in FIG.
After exposure for 25 seconds from a 2kW high-pressure mercury lamp 1m away,
The polyvinyl chloride film 11 was peeled off to obtain a partially matte film 20 in which the exposed portion had a matte finish (FIG. 4). Next, an aluminum vapor-deposited film 5 in which a thin aluminum film with a thickness of 100 nm is provided on one side of a polyester film with a thickness of 100 μm by vacuum vapor deposition is placed, and the aluminum-deposited surface is aligned with the photocurable resin layer 12 of the partially matte film 20, and a heat laminator is applied. Lamination was carried out at 50° C. and 3 m/min. Furthermore, through the polyester film 13 (light-transmitting film) of the partial matte film 20,
After exposure for 25 seconds from a 2kW high-pressure mercury lamp 1m away (
5), the aluminum vapor-deposited film 5 was peeled off to obtain a partial matte film 30 in which a glossy aluminum image 52 was formed in areas other than the matte area as shown in FIG.

[0021] By this method, it was possible to obtain a film with an extremely high design quality, which could not be obtained by conventional methods, and which had a metallic luster image with an arbitrary pattern on a satin finish. Example 3 A colored resin solution having the following composition was prepared. Methacrylic acid/methacrylic acid ester copolymer
4g (copolymer consisting of 30 mol% methyl methacrylate, 40 mol% 2-hydroxyethyl methacrylate, 27 mol% methacrylonitrile, and 3 mol% methacrylic acid) Carbon black (Mitsubishi Kasei MA-100)
2g distilled water

80g ammonia water (28%)
1g silicone surfactant (DS-XB manufactured by Dow Corning)
-2725) 1g This colored resin solution was applied to a 100 μm polyester film using a wire bar, and dried with warm air at 100°C for 2 minutes to obtain a colorant coated sheet with a colored resin layer of 1.5 μm thick. I got 6.

After obtaining a partially matte film 20 with a matte exposed area in the same manner as in Example 1, the colored resin layer 61 of the coloring material coated sheet 6 is aligned with the photocurable resin layer of this partially matte film 20. In this manner, lamination was performed using a heat laminator at 50° C. and at a speed of 3 m/min. Furthermore, a 2 kW high-pressure mercury lamp placed 1 m away through a light-transmitting film was
After exposing the entire surface to light for 5 seconds, the coloring material coated sheet was peeled off to obtain a partially matte film 30 in which a colored image was formed on areas other than the matte areas. The partially matte film obtained in this manner had a sharper image and was superior in design than a conventional matte film in which a colored image was provided by a printing method. Example 4 After obtaining a partially matte film 20 in which the exposed portion became matte in the same manner as in Example 1, carbon black (Mitsubishi Kasei MA-100) was toned over the entire surface, and the unexposed portion was coated with carbon black (MA-100 manufactured by Mitsubishi Kasei). After fixation, excess carbon black was removed using a dust collector to obtain a partially matte film in which the areas other than the matte area were smooth and black. The partially matte film thus obtained had a sharp image and excellent design, similar to the matte film of Example 3.

[0023]

[Effects of the Invention] As is clear from the above examples, according to the present invention, smooth metal images and colored images can be formed in areas other than those with uneven shapes in the dry process, and the unevenness of the areas obtained thereby The image has a design that was not previously available and is excellent as a decorative sheet.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a partially uneven image display object according to the present invention.

[Fig. 2] A cross-sectional view of the partially uneven image forming material according to the present invention.

[
FIG. 3 is a diagram illustrating the partially uneven image forming method according to the present invention

FIG. 4 is a diagram illustrating the partially uneven image forming method according to the present invention.

FIG. 5 is a diagram illustrating the partially uneven image forming method according to the present invention.

FIG. 6 is a diagram illustrating the partially uneven image forming method according to the present invention.

FIG. 7 is a diagram illustrating the partially uneven image forming method according to the present invention.

[Explanation of symbols]

10... Partially uneven image forming material 11...
- Base material 12... Photo-curable resin layer 13... Light-transmissive member 3... Partially uneven image display object 4... Documents 5, 6- ...Transfer member 7...Colored powder

Claims (3)

[Claims] 1. A partially uneven image display object, characterized in that the same surface has a partially uneven image composed of an uneven part and a smoothed transfer image part or a colored image part. 2. A partially uneven image forming material comprising a base material having an uneven shape and a photocurable resin layer and a light transmissive member sequentially laminated thereon. After curing only the exposed portion of the photocurable resin layer into an uneven shape corresponding to the base material, the base material is peeled off, and the transfer layer of the transfer member has a transfer layer on the photocurable resin layer. After overlapping, the entire surface is exposed through the light-transmitting member and the transfer member is peeled off, thereby forming a portion having a smooth transfer image by the transfer layer in a portion other than the portion having the uneven shape. A partially uneven image forming method characterized by forming an uneven image. 3. A partially textured image forming material comprising a base material having an uneven shape, a photocurable resin layer and a light transmissive member sequentially laminated, and an original is placed on the light transmissive member and exposed to light, After curing only the exposed portion of the photocurable resin layer into an uneven shape corresponding to the base material, peeling off the base material, and further toning colored powder to the photocurable resin layer and fixing it to the unexposed portion, After removing excess colored powder, if necessary, the entire surface is exposed through the light-transmitting member to form a partial unevenness having a colored image smoothed by the colored powder in a portion other than the portion having the uneven shape. A partially uneven image forming method characterized by forming an image.