JPH05294098A - Transcription sheet and transcription method - Google Patents

Abstract

PURPOSE:To provide a transcription sheet and a transcription method in which sophisticated patterns with a cubic effect are produced simply on the surface of an optional material. CONSTITUTION:On the surface of a base sheet 1, a transcription sheet is palced which is prepared by laminating pattern printing layers 2, 2' comprising ink containing a thermal diffusion type dye and a thermoplastic resin layer 3 in this order. The surface of a material is overlaid with the transcription sheet, and heat is applied from the back of the base sheet 1 for the transcription.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer sheet and a transfer method, and more particularly, to a transfer sheet which has an excellent depth and three-dimensional effect on a surface of an arbitrary article and can easily provide a deep pattern. It relates to a transfer method.

[0002]

2. Description of the Related Art Conventionally, there is a transfer method as a method for easily applying a pattern to the surface of various articles. With this transfer method,
Providing a pattern printing layer on the surface of the base sheet having releasability,
A transfer sheet having a pressure-sensitive adhesive layer or an adhesive layer (heat sealing agent layer) provided on the pattern printing layer is used, and this is superposed on the surface of the article to be given the pattern, and pressure or pressure is applied from the back surface of the substrate sheet. After applying heat and pressure, the base sheet is peeled off and a desired pattern is applied to the surface of the article.

[0003]

The above-mentioned transfer method has the great advantage that painting can be performed by an extremely simple operation regardless of the type and place of the article, but the painted pattern is Similar to general printing, there is a problem that it is visually flat and lacks depth such as depth and stereoscopic effect. As a method of solving such a problem, various methods such as a method of forming a pattern transfer layer of a transfer sheet into a multi-layered structure to make a pattern floating in the transfer layer are known,
In these methods, a large number of printing and coating steps are required for producing the transfer sheet, and there is a problem that the transfer sheet and the painted product become expensive. Therefore, an object of the present invention is to provide a transfer sheet and a transfer method capable of easily imparting a depth pattern, a stereoscopic effect, and a deep pattern to the surface of an arbitrary article.

[0004]

The above object can be achieved by the present invention described below. That is, the present invention is a transfer sheet characterized in that one side of a base sheet is formed by laminating a pattern printing layer made of ink containing a heat diffusible dye and a thermoplastic resin layer in this order. And the transfer sheet is superposed on the surface of the article, and heated and pressed from the back surface of the substrate sheet.

[0005]

The transfer sheet formed by laminating a pattern printing layer made of an ink containing a heat diffusible dye and a thermoplastic resin layer on one surface of a substrate sheet in this order is overlaid on the surface of the article. By heating and pressing from the back of the material sheet,
The heat-diffusible dye is diffused and transferred in the depth direction of the thermoplastic resin layer, and therefore, a depth pattern or a three-dimensional effect and a deep pattern can be easily provided on the surface of an arbitrary article.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the following preferred embodiments. One example of the basic constitution of the transfer sheet of the present invention is, as schematically shown in FIG. 1a, a pattern print 2 made of an ink containing a heat diffusible dye and a thermoplastic resin on one surface of a base sheet 1. The layer 3 and the layer 3 are laminated in this order. Such a transfer sheet is superposed on the surface of any article 10 as schematically shown in FIG. 1b, and appropriate heat and pressure are applied from the back surface of the base material sheet 1 to apply the thermoplastic resin layer 3 to the surface of the article 10. After adhering, the base sheet 1 is peeled off, and the heat diffusible dye forming the pattern print 2 is diffused into the resin layer 3 by the above heating. In this case, by making the resin layer 3 transparent, the dye pattern 2 ′ made of the dye diffused in the resin layer 3
Is a deep pattern with excellent depth and three-dimensionality. still,
The resin layer 3 may be colored as long as the dye pattern 2'is transparent enough to be visible.

The example of FIG. 2 schematically shows another embodiment, and in the example of FIG. 2a, another decorative layer 4, such as a solid printing layer or a metal vapor deposition layer, is previously formed on the surface of the thermoplastic resin layer 3. 2 shows a structure in which another pattern printing layer or the like is formed and an adhesive layer 5 is provided on the surface thereof, and by transferring in the same manner as in FIG. 1, the decorative layer 4 is transferred to the dye pattern. It becomes the background of 2 ′, and a more excellent dye pattern is applied to the surface of the article 10. The example of FIG. 3 schematically shows another embodiment, and in the example of FIG. 3a, the release layer 6 and the decorative layer 4 are provided between the base sheet 1 and the dye pattern 2 in the order shown.
Is provided, and by transferring to the surface of the article 10 as in the case of FIG. 1, a dye pattern 2 ′ having the release layer 6 and the decorative layer 4 on the surface is provided. In this case, it is preferable that at least a part of the peeling layer 6 and the decorative layer 4 be transparent. After transfer, the peeling layer 6 on the outermost surface of the transfer layer functions as a protective layer for the entire pattern and can impart various excellent physical properties such as scratch resistance, chemical resistance, and abrasion resistance. The decorative layer 4 can be matched with the dye pattern 2'to provide more excellent decorative properties. The decorative layer 4 may be provided both between the base sheet and the pattern printing layer and on the surface of the thermoplastic resin layer, or these decorative layers may be provided in multiple layers by overprinting or the like.

Substrate sheet 1 used in the transfer sheet of the present invention
As for the above, the same base sheet 1 as that used in the conventional transfer sheet can be used as it is, and other materials can also be used and are not particularly limited. Specific examples of the preferable substrate sheet 1 include thin paper such as glassine paper, condenser paper, paraffin paper, polyester, polypropylene, cellophane, polycarbonate, cellulose acetate, polyethylene, polyvinyl chloride, and the like.
Examples thereof include plastics such as polystyrene, nylon, polyimide, polyvinylidene chloride, and ionomer, or the base sheet 1 in which these are combined with the preceding paper. The thickness of the base sheet 1 can be appropriately changed depending on the material so that the strength, heat resistance and the like are appropriate, but the thickness is preferably 3 to 100 μm.

Prior to the formation of the dye pattern 2, it is also preferable to form a release layer 6 on the surface of the base sheet 1. The release layer 6 is formed of a release agent such as water-soluble resin, hydrophilic resin, waxes, silicone wax, silicone resin, fluororesin, acrylic resin or the like. The forming method may be any forming method such as, for example, a gravure printing method, a screen printing method, a reverse roll coating method using a gravure plate, and a thickness of about 0.5 to 10 μm is sufficient.
If a matte pattern is desired after transfer, the release layer 6
It is also possible to make the transferred pattern matt on the surface by incorporating various matting particles to the extent that the transparency is not impaired or by using the substrate sheet 1 that has been matt-treated. The decorative layer 4 formed on the surface of the release layer 6 may be a layer that does not completely hide the dye pattern after transfer, such as general printing and a partial metal vapor deposition layer, but the article 10 is transparent, When the dye pattern 2'is observed from the side of the article 10, it may be opaque.

As the heat diffusible dye for forming the dye pattern 2 on the substrate sheet 1 or on the surface of the release layer 6 or the decorative layer 4, any conventionally known heat diffusible dye can be used. Preferred dyes are sublimable (heat transfer) dyes,
For example, as magenta dyes, MS Red G, Macrolex Red
Violet R, Ceres Red7B, Samaron Red HBSL, Resolin
Red F3BS and the like, and as the yellow dye,
Holon Brilliant Yellow 6GL, PTY-52, Macrolex Yellow 6G, etc. are mentioned, and as cyan dyes,
Kayaset Blue 714, Waxolin Blue AP-FW, Holon Brilliant Blue SR, MS Blue 100 and the like can be mentioned.

When these dyes are made into an ink, the dyes may be dissolved or dispersed in a suitable organic solvent in which a suitable binder is dissolved to obtain a gravure type ink. Preferred binder resins include, for example, Cellulose resins such as ethyl cellulose, hydroxyethyl cellulose, ethyl hydroxy cellulose, hydroxypropyl cellulose, methyl cellulose, cellulose acetate, cellulose acetate butyrate, polyvinyl resins such as polyvinyl alcohol, polyvinyl acetate, polyvinyl butyral, polyvinyl acetal, polyvinyl pyrrolidone, and polyacrylamide. , Polyester, and the like. The pattern printing with the ink is, for example, a gravure printing method, an offset gravure printing method, a lithographic printing method, an electrostatic printing method,
Any conventionally known printing method such as an ink jet printing method may be used, and the type of pattern formed is not limited at all.

The thermoplastic resin layer 3 formed on the surface of the dye pattern 2 receives the dye diffused from the dye pattern 2 during transfer by heat into the layer and maintains the formed dye pattern 2 '. Examples of these thermoplastic resins include polyolefin resins such as polypropylene, vinyl chloride-vinyl acetate copolymers, halogenated polymers such as polyvinyl chloride and polyvinylidene chloride, polyvinyl acetate, and polyacryl. Vinyl polymers such as esters, polyester resins such as polyethylene terephthalate and polybutylene terephthalate, polystyrene resins, polyamide resins, copolymer resins of olefins such as ethylene and propylene with other vinyl monomers, ionomers, cellulose diacetate, etc. Cellulosic resin, polycarbonate, etc. Are particularly preferred are vinyl resins and polyester resins. As the thermoplastic resin, those having Tg in the range of 40 to 150 ° C. are preferable, and when Tg is too low, the diffusibility of the dye is good, but the image bleeds with time and various durability is insufficient. On the other hand, if the Tg is too high, the diffusibility of the dye is insufficient and it is not easy to achieve the object of the present invention. The thermoplastic resin layer 3 formed as described above may have any thickness, but it is generally 5 to 50 μm thick, and if it is too thin, the three-dimensional effect and depth feeling are insufficient, while the thickness is If it is too much, foil breakage will be insufficient during transfer.

Further, on the surface of the thermoplastic resin layer 3,
As shown in FIG. 2, the decorative layer 4 and the adhesive layer 5 which become the background of the dye pattern 2'after transfer can be provided. The decorative layer 4 in this case is the same as the decorative layer 4, but it is not necessary that at least a part of the decorative layer 4 is transparent.
The surface of 0 may be completely hidden. Further, when the article itself is transparent and the dye pattern 2'is observed from the article 10 side, at least a part thereof needs to be transparent. As the adhesive layer 5, a conventionally known heat-sensitive adhesive can be used as it is, and examples thereof include polyamide resin, acrylic resin, vinyl chloride resin, ethylene / vinyl acetate copolymer resin, vinyl chloride / vinyl acetate copolymer resin, polyester resin and the like. As described above, by coating and drying a solution or emulsion of a resin having good adhesiveness when heated, it is preferably formed to a thickness of about 0.1 to 10 μm.

Further, the transfer method of the present invention is characterized by using the transfer sheet of the present invention, and the article 10 as a transfer material to be used is, for example, a metal product, a wood product, a paper product, a synthetic product. There is no limitation on the resin molded product. or,
As the transfer method, any heating and pressurizing means capable of heating to a temperature at which the thermoplastic resin layer 3 or the adhesive layer 5 is activated, such as a hot stamper for transfer foil and a heat roll, may be used. The heating and pressurizing conditions vary depending on the materials used and cannot be determined unconditionally, but generally 10 to 80 ° C. to 250 ° C.
The pressure is about 0 Kg / m ² and the time is about 1 to 10 ³ seconds.

[0015]

EXAMPLES Next, the present invention will be described more specifically with reference to Examples and Comparative Examples. In the text, “part” or “%” is based on weight unless otherwise specified. Example 1 On the surface of a polyester film (X45, manufactured by Toray), a release layer ink manufactured by Showa Ink Co., Ltd. was used as a solid content of 2 g / m ^2.
Was applied by the gravure printing method and dried to form a release layer. Next, a color image was formed on the surface of the release layer by a gravure printing method using a dye ink having the following composition. Yellow dye ink composition : Disperse dye (Macrolex Yellow 6G) 4.0 parts Methyl ethyl ketone / toluene (weight ratio 1/1) 80.0 parts Dioxane 10.0 parts Disperse dye (Kayaset Blue 714, manufactured by Nippon Kayaku) 4. 0 part Magenta dye ink composition : Disperse dye (CI Disperse Red 60) 4.0 parts Ethyl hydroxycellulose (manufactured by Hercules) 5.0 parts Methyl ethyl ketone / toluene (weight ratio 1/1) 80.0 parts Dioxane 10. 0 part Cyan dye ink composition : Disperse dye (Kayaset Blue 714, manufactured by Nippon Kayaku) 4.0 parts Ethyl hydroxycellulose (manufactured by Hercules) 5.0 parts Methyl ethyl ketone / toluene (weight ratio 1/1) 80.0 parts Dioxane 10.0 parts

[0016] and then applied at a rate to become dry 5.0 g / m ² and 3 g / m ² by a thermoplastic resin layer coating solution and sequential bar coater adhesive layer coating solution having the following composition, After temporary drying with a dryer, it was dried in an oven at 100 ° C. for 30 minutes to form a thermoplastic resin layer and an adhesive layer to obtain a transfer sheet of the present invention. Coating solution composition for thermoplastic resin layer; vinyl chloride / vinyl acetate copolymer (VAGH, manufactured by Union Carbide Co.) 100 parts Methyl ethyl ketone / toluene (weight ratio 1/1) 400 parts Coating solution composition for adhesive layer; poly Methyl methacrylate resin (BR-106, manufactured by Mitsubishi Rayon) 100 parts Methyl ethyl ketone / toluene (weight ratio 1/1) 300 parts Example 2 The transfer sheet obtained in Example 1 was overlaid on the surface of an ABS resin molded product, and 200 After the transfer, the substrate sheet was peeled off by a heat press transfer method at 5 ° C. for 5 minutes. In the obtained pattern, the dye was deeply diffused in the thermoplastic resin layer, and it was a beautiful pattern with depth and excellent depth and stereoscopic effect.

[0017]

[Effects] According to the present invention as described above, a transfer in which a pattern printing layer made of an ink containing a heat diffusible dye and a thermoplastic resin layer are laminated in this order on one surface of a base sheet. By stacking the sheet on the surface of the article and applying heat and pressure from the back surface of the substrate sheet, the heat-diffusible dye is diffused and transferred in the depth direction of the thermoplastic resin layer, and therefore, the depth of the article on the surface of any article Also, it is possible to easily add a three-dimensional and deep pattern.

[Brief description of drawings]

FIG. 1 is a diagram schematically illustrating a cross section of a transfer sheet and a transfer method according to the present invention.

FIG. 2 is a diagram schematically illustrating a cross section of a transfer sheet and a transfer method of the present invention.

FIG. 3 is a diagram schematically illustrating a cross section of a transfer sheet and a transfer method of the present invention.

[Explanation of symbols]

 1: Base material sheet 2, 2 ': Dye pattern 3: Thermoplastic resin layer 4: Decorative layer 5: Adhesive layer 6: Release layer 10: Article (transferred material)

Claims (5)

[Claims] 1. A transfer sheet comprising a base sheet and a pattern printing layer made of an ink containing a heat diffusing dye and a thermoplastic resin layer, which are laminated in this order on one surface of the base sheet. 2. The transfer sheet according to claim 1, wherein a release layer and / or a decorative layer is provided between the base sheet and the pattern printing layer. 3. The transfer sheet according to claim 1, wherein a decorative layer is provided on the surface of the thermoplastic resin layer. 4. The transfer sheet according to claim 1, wherein an adhesive layer is provided on the outermost surface. 5. A transfer method, wherein the transfer sheet according to any one of claims 1 to 4 is placed on the surface of an article and heated and pressed from the back surface of the substrate sheet.