JPH0348870B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a film for a simple copy master plate used for copying and the like.

Copy master plates such as negative film are usually made using a camera, but this requires expensive equipment, complicated operations, and a lot of time, and is not easy to make.

The present invention is a transferable film in which a transparent base material is provided with a colored resin layer via a release layer, an adhesive layer that becomes adhesive under pressure or heat, and a primer layer is formed on the base film. Prepare a primer film, overlap the primer film so that the primer layer is in contact with the adhesive layer, display desired characters, designs, etc. on the surface while applying pressure, and adhere to the primer film at that part. Then, by peeling off this primer film, the colored resin layer of the adhered portion is transferred to the primer film, and the colored resin layer is removed from the transferable film to reveal characters, etc. A copy master plate can be obtained very easily and inexpensively without requiring any labor, and the master plate can be used to easily make copies of well-finished characters, designs, etc.
The primer film to which the designs have been transferred can be used to preserve the original characters and designs, and can also be used as a copying master plate to make copies.

To explain an example below, for example, one side of the base material 1 is formed with a mold release layer 2 treated with a mold release agent, etc., and a color vehicle such as a synthetic resin containing a pigment or other coloring agent is formed on the mold release layer. A transferable film 5 is formed by providing the colored resin layer 3 and the adhesive layer 4 on the colored resin layer. An aluminum or other metal vapor-deposited layer may be provided on the upper surface of the colored resin layer, if necessary.

The substrate 1 may be a transparent or translucent material, such as polyethylene, polypropylene, polyester, polyamide, soft or hard vinyl chloride resin, acrylic resin, polystyrene, cellulose plastic such as cellophane acetate cellulose, and others.

The mold release agent forming the mold release layer 2 includes silicone resin, fluorine resin, paraffin, waxes, acrylic, grease, cellulose derivatives, and others, and can be appropriately selected depending on the base material and adhesive using a known method. A predetermined release layer can be formed by coating or the like on the desired surface of the base material. When the base material 1 has a predetermined mold release property, the above-mentioned mold release layer may not be provided.

The synthetic resin forming the colored resin layer 3 includes polyamide, polyester, low molecular polyethylene,
Acrylic resin, vinyl resin, epoxy resin,
Polyurethane resin, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, nitrified cotton,
Nitrile rubber, styrene rubber, butadiene rubber,
Acrylic rubber, natural rubber, chlorinated polypropylene, chlorinated polyethylene, methyl methacrylate graft polymer, phenolic resin, coumaron indene resin, etc. are used as a color vehicle, which is a mixture of one or more of these, and pigments and other substances. A desired colored resin layer can be formed by applying a composition containing a colorant onto the release layer by a conventional method.

The adhesive constituting the adhesive layer 4 includes cyclized rubber resin, acrylic resin, vinyl chloride-vinyl acetate copolymer, polyamide resin, polyacrylic acid ester resin, polyvinyl butyral resin, cellulose derivative, and others. There are heat sensitive adhesives which can be formed by applying a suitable solvent solution or the like onto the colored resin layer. Pressure sensitive adhesives may also be used. The above-mentioned colored resin layer can be made into a single-layer adhesive colored resin layer 3a by appropriately changing the type of resin constituting it, the ratio of the resin and other compounded materials, etc., and also serving as an adhesive layer. Figure 2).

The primer film 8 to be superimposed on the adhesive layer of the migration film 5 is, for example, one of the base films 6 such as a synthetic resin film such as polyethylene, polypropylene, polyester, or polyamide, cellophane, paper, synthetic paper, laminated paper, or the like. Primer treatment 7 has been applied to the surface. The primers used include synthetic resins that form the colored resin layer of the migration film and synthetic resins that form the adhesive layer. In addition, a desired primer treatment layer is formed by coating or the like on the surface of the film using a conventional method.

When using this, overlap the primer layer of the primer film so that it is in contact with the adhesive layer of the migration film, and apply a slightly hard object such as a ballpoint pen, pencil, or iron pen to the surface of the migration film or the surface of the primer film. When writing desired letters, figures, models, etc. using a writing utensil, etc., while applying slight pressure, the adhesive layer will break down due to the pressure applied to the adhesive layer and frictional heat. Adhesive properties are developed and the film adheres to the overlapped primer film in those areas, but does not adhere to areas where no pressure is applied. This primer film has a primer layer provided on one side of the base film, and since this primer layer is in contact with the adhesive layer as described above, it can more effectively express the adhesive properties of the adhesive. The primer film and the migration film can be bonded more reliably in that area.

When you remove the primer film after writing the desired characters, etc., the primer film is not adhered to the migration film in the areas where no characters were written, so the primer film can be peeled off as it is, but the characters, etc. are removed. The primer film cannot be peeled off as it is because it is glued at the written part, but a release layer is formed between the migration film base material and the colored resin layer, so it can be removed from this part of the release layer. It peels off easily and cleanly, and the adhesive layer and colored resin layer in that area are reliably transferred to the plummer film side.

As a result, in the transferable film, the colored resin layer is removed in the shape of written characters, etc., and the part becomes transparent, so that a copy master (negative film) can be easily and reliably obtained.

In addition, the adhesive layer formed on the transferable film as described above exhibits adhesive properties under heat or pressure, so it is not adhesive under normal conditions and is easy to handle and store. be. Even if a typewriter, a letterpress printing machine, a letterpress stamp, etc. are used instead of the above-mentioned writing utensils, and instead of adding directly to the surface of either the transferable film or the primer film layered as described above, By overlaying a ready-made printed matter on the surface and tracing pictures, letters, patterns, etc. on the printed matter under pressure, a copying original plate similar to the above can be obtained corresponding to the printed matter.

As described above, the present invention has a simple structure, and it is possible to easily obtain an original plate for copying in which the image areas corresponding to desired characters, designs, etc. are removed, and to make copies using various copying machines using this original plate. Clear and well-finished,
The primer film to which the printed lines such as letters and designs have been transferred can be used as a manuscript for storage, or
Copies can also be obtained by using it as a master plate for copying. In this case, if a transparent or translucent or white colored film is used as the base film for the primer film, the transition image area can be made even clearer.

Example 1 A solution containing 1 part of wax (MP80 to 150°C) in 50 parts of toluene (the same applies below by weight) and 50 parts of cyclohexane was applied to one side of a polyester film base material 1 with a thickness of about 12 μm to a thickness of about 12 μm. A release layer 2 of 0.2μ is formed, and on top of that, 10 parts of acrylic resin, 7 parts of coumaron indene resin, 20 parts of carbon black, and titanium white.
A uniform mixture of 80 parts of toluene, 15 parts of toluene, and 68 parts of ethyl acetate was applied to form a colored resin layer 3 having a thickness of about 5 μm. Next, an adhesive solution prepared by dissolving 10 parts of vinyl acetate resin and 7 parts of coumaron indene resin in a mixed solvent consisting of 15 parts of toluene and 68 parts of ethyl acetate was applied onto this to form an adhesive layer 4 with a thickness of about 3 μm. A transfer film 5 was obtained. A primer solution prepared by dissolving 10 parts of ethylene-vinyl acetate copolymer, 10 parts of chlorinated polypropylene, and 10 parts of phenolic resin in 35 parts of toluene and 35 parts of cyclohexane was also applied to one side of a polypropylene base film 6 with a thickness of about 30μ. was applied to obtain the required primer film 8. The resulting migration film 5 and primer film 8 were placed one on top of the other with the adhesive layer of the former facing the primer layer 7 of the latter, and desired characters, designs, etc. were strongly written on the surface of the polypropylene film of the primer film with a ballpoint pen. After, polymer film 8
When the film is peeled off, the lines corresponding to the letters and designs written on the surface of the film will transfer to the primer layer of the primer film, and the transferable film will have no missing lines corresponding to the letters and designs. The transferred layer remains, and the required original plate for copying is obtained.
This original plate is transparent with white areas in the above-mentioned image areas, and is opaque and colored black in areas other than the above-mentioned image areas, so it can be used with various types of transparency copying machines to obtain copies, and Xerox (product name) Copies were easily obtained by applying to various reflective copying machines using other electrophotographic methods. In addition, instead of adding directly to the surface of either the transferable film or the primer film that has been superimposed as described above, a ready-made printed matter is superimposed on the surface, and the pictures, letters, patterns, etc. of the printed matter are applied under pressure. By tracing, it is also possible to obtain a copying original plate similar to the one described above corresponding to a printed matter.

Example 2 A mold release layer 2 similar to that in Example 1 was provided on one side of a polyester film 1 with a thickness of about 12μ, and on the mold release layer, 10 parts of acrylic resin, 10 parts of phenol resin, 10 parts of carbon black, A uniform mixture obtained by adding 15 parts of titanium white to 30 parts of toluene and 30 parts of ethyl acetate is applied to form an adhesive layer 3a which also serves as a colored resin layer with a thickness of approximately 7μ, and a transferable film 5 is applied. Obtained. On the other hand, on one side of a polyester base film 6 with a thickness of about 25 μm, 12 parts of polyester resin and 8 parts of phenol resin were mixed with an equal amount of toluene and trichlene.
Primer film 8 was obtained by applying 80 parts of the solution. The resulting migration film 5 and primer film 8 were overlapped in the same manner as in Example 1 to obtain a similar excellent original plate.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, FIG. 1 is a sectional view, A is a migration film, B is a primer film, FIG. 2 is a sectional view of a migration film showing a modified example, and FIG. 3 is a film for copy masters. FIG. 3 is a cross-sectional view showing a state in which a film is formed. 1 is a base material, 2 is a release layer, 3 is a colored resin layer, 4 is an adhesive layer, 5 is a migration film, 6 is a base film, 7 is a primer layer, and 8 is a primer film.

Claims (1)

[Claims] 1. Having a transparent or translucent base material, providing a release layer on one side of the base material and a colored resin layer thereon, and applying heat or pressure on the colored resin layer. a migratory film forming an adhesive layer that exhibits adhesive properties, and a primer that is stacked facing the adhesive layer of the migratory film during use and contributes to the development of adhesive properties of the adhesive layer. A film for simple copying plates comprising a primer film having a layer formed on one side of a base film. 2. The film for a simple copy master according to claim 1, wherein the colored resin layer and the adhesive layer of the migration film are a single adhesive colored resin layer.