JP2749229B2 - Production method of copy image - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a copied image.

[0002]

2. Description of the Related Art Conventionally, screen printing is generally performed as a method of applying a pattern to a base material such as a tile plate, a slate plate, and a plastic plate.

[0003] However, this method requires labor for color matching, especially when performing multi-color printing, and takes time since printing is performed for each color. The drawback is that this effort and the time it takes to perform multiple screen printings is increased.

[0004] Further, using a color copying machine, a copy image layer is copied to a copy resin layer, and then this is thermally transferred to an object to be transferred. A method of creating a pattern on the transcript is conceivable.

However, this method requires a lot of time to remove the copying resin layer from the copied image layer, and the peeling of the copied image layer is not sufficient because the peeling is insufficient. However, there were drawbacks such as inferiority.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to solve the above-mentioned problems, and as a result, in particular, the present invention has been made of a resin mainly composed of a saponified polyvinyl acetate. It has been found that all of the above problems can be solved by using a copying resin layer and using a specific transfer stripping solution, and the present invention has been completed.

That is, the present invention provides a release sheet having (a) a release layer, a copying resin layer containing a saponified polyvinyl acetate as a main component, and a copying image layer on the surface of the substrate. (B) Then, the release layer is peeled off from the copying resin layer to obtain a transferred product composed of the base material, the copied image layer and the copying resin layer. )
A transfer resin layer of the obtained transfer product was prepared by transferring a copying resin layer containing an aqueous alcohol-based solvent and water, and the mixing ratio of the two components was 90 to 60% by weight of the aqueous alcohol-based solvent and 10 to 40% by weight of water. The present invention relates to a method for producing a copied image, which is characterized in that it is removed with a stripping liquid.

The present invention will be described with reference to the drawings. 1 is a cross-sectional view of a release sheet, FIG. 2 is a cross-sectional view of a transfer product after a transfer image layer of a release sheet is overlaid on a substrate, and then a release layer is removed. FIG. 3 is a resin layer for copying. FIG. 4 is a cross-sectional view of a transfer product in which a transfer resin layer is peeled from the transfer product obtained in FIG. 3.

As the release sheet, a sheet in which a copy image layer 3 is formed on the surface of the copy resin layer 1 by copying a copy sheet having a copy resin layer 1 and a release layer 2 with a copying machine can be used. The copying resin layer is formed of a resin containing a saponified polyvinyl acetate as a main component, and may contain additives, pigments, and the like, if necessary. Further, a release layer such as dimethylpolysiloxane may be provided between the copying resin layer 1 and the release layer 2 if necessary. The copying machine is not particularly limited, and a conventional single color or multicolor (color) copying machine can be used, but an electrophotographic type in which toner particles are electrostatically fixed is preferable. In copying, the copied image layer 3 is transferred to the base material 4 in the next step and reversed, so that the original drawing is copied on the back side.

A substrate 4 to be transferred using the release sheet
Is a material which does not cause deterioration or deformation due to heat, for example, pottery (tile, slate, etc.), wood, glass, metal, plastic, and a plate, a sheet, a shape material, etc. composed of a combination thereof can be used. In addition, the base material 4 may be provided with a primer layer and / or an intermediate coating layer. These layers can improve the adhesion between the base material 4 and the copy image layer 3 and, by coloring these layers, change the color behind the image so that the image floats or blurs. To obtain images with different feelings.

The transfer is carried out by overlapping and pressing the surfaces of the copy image layer 3 of the release sheet and the substrate 4. The pressurization is usually performed in a heated state. Heating is generally about 80-250 ° C, preferably about 150-1.
A range of about 20 to 50 seconds at 70 ° C is good. If necessary, the surface on which the base material 4 has been transferred while it is still warm can be pressed with a cloth or the like to make the copied image layer 3 more evenly adhered.

After the transfer, the release layer 2 is separated from the copying resin layer 1. Further, the copying resin layer 1 is separated from the transfer image layer 3 after cooling. The peeling is performed using a transfer peeling solution. The transfer stripping solution contains a hydroalcoholic solvent and water, and the mixing ratio thereof is 90 to 60% by weight, preferably 90 to 70% by weight, water 10 to 40% by weight, based on the total weight of the two components. Preferably it is in the range of 10 to 30% by weight. As the aqueous alcohol solvent, methyl alcohol, ethyl alcohol, propyl alcohol and the like are particularly preferable. Further, when a combination of ethyl alcohol and isopropyl alcohol at a ratio of 60/40 to 40/60 (weight ratio) is used, the image can be peeled off in a short time and the transferred image layer is not deteriorated, so that an image having a good finish can be obtained. There is an advantage that it can be. The transfer stripper can be applied to the surface of the copying resin layer 1 by using a coating means such as a spray or a brush, or by using gauze or the like. The resin layer for copying 1 can be sufficiently peeled off within about one minute after the application.

A clear paint can be applied to the copy image thus obtained, if necessary.

The copied image obtained by the method of the present invention may be, for example, a building material (wall material, ceiling material, floor material, etc.), an art object, a decorative item,
It can be used as a display product or as a part of those constituting them.

[0015]

【Example】

Example For a copy sheet (transfer paper copress 4H “Trade name, Osaka Taiyo Bussan”) using a pattern as an original figure and a color laser copier pixel 500 (trade name, Canon Inc., toner method) as a color copying machine The resin sheet (a sheet having a saponified polyvinyl acetate), a dimethylpolysiloxane layer and a release layer) was reversely copied to form a release sheet having a copied image.

As a base material, an unglazed tile (20 cm square) plate manufactured by Fujimi Tile Co., Ltd. was used as a primer. As a primer, Rethane PG-60 white enamel (trade name, Kansai Paint Co., Ltd.)
Co., Ltd., a urethane-based paint) was applied to a dry film thickness of 60 μm and dried at 60 ° C. for 30 minutes to prepare.

The copy image layer of the release sheet and the primer layer of the substrate are overlapped so as to be in uniform contact with each other.
Crimping was performed for 0 seconds. Next, after cooling to room temperature, the release layer was peeled off, and then the transfer stripper (ethyl alcohol / isopropyl alcohol / water = 40/40/20 “weight ratio”) soaked in gauze was used as a resin for copying. It was applied to the entire surface of the layer. Within 10 seconds after the application, the copying resin layer was peeled off from the copying image layer. As a result, the peeling was easy, and the appearance of the copied image after peeling was good.

Comparative Example The procedure was the same as in the example, except that ethyl alcohol / isopropyl alcohol / water = 45/10/45 (weight ratio) was used as the transfer stripping solution. As a result, after coating, the time until peeling can be performed is 3 minutes to
5 minutes and a long time. In the case of one minute after application, the copy image layer was partially peeled off from the primer layer and the appearance of the copy image was inferior.

[0019]

The method of the present invention exerts remarkable effects such as excellent workability of peeling the resin layer for copying and excellent finished appearance of the obtained copied image.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a release sheet.

FIG. 2 is a schematic cross-sectional view of a product obtained by transferring a release sheet to a substrate.

FIG. 3 is a schematic cross-sectional view of a transfer product in which a transfer release liquid is impregnated in a copying resin layer.

FIG. 4 is a schematic sectional view of a transferred material after a copying resin layer is peeled off.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 copying resin layer 1 ′ copying resin layer containing transfer release liquid 2 release layer 3 copied image layer 4 substrate

Claims (1)

(57) [Claims] 1. A release sheet having (a) a release layer, a copying resin layer containing a saponified polyvinyl acetate as a main component, and a copy image layer on the surface of the base material. (B) Then, the release layer is peeled off from the copying resin layer to obtain a transcript composed of the base material, the copying image layer and the copying resin layer, and (c) is obtained. The copied resin layer of the transferred product contains an aqueous alcoholic solvent and water, and the mixing ratio of the two components is 90%.
A method for producing a copied image, wherein the transfer image is removed with a transfer stripping solution in a range of from 60 to 60% by weight and water in a range of from 10 to 40% by weight.