Thermal transfer sheet

A technology of thermal transfer printing and sheet materials, applied in printing, printing devices, copying/marking methods, etc., can solve the problems of complex manufacturing process, low productivity, increased production cost, etc., and achieve low bleeding, high sensitivity, The effect of excellent blocking resistance

Inactive Publication Date: 2013-04-03
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above reasons, when a curing agent is used to form the dye-receiving layer described in International Publication No. WO2006 / 057192, the manufacturing process is complicated and large specialized manufacturing equipment is required
Therefore, productivity is low, which leads to increased production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] 2.1 Preparation of AS resin

[0023] 2.2 Synthesis of acrylic resin

[0024] 2.3 Preparation of mixed solution

[0025] 2.4 Coating and drying of mixed solution

[0026] [1. Composition of thermal transfer receiving sheet]

[0027] [1.1 Overall structure]

[0028] First, refer to figure 1 The general structure of the thermal transfer receiving sheet according to the preferred embodiment of the present invention is described. figure 1 It is a schematic cross-sectional view which shows the structure of the thermal transfer receiving sheet of the preferable embodiment of this invention.

[0029] like figure 1 As shown, the thermal transfer receiving sheet 100 according to the present embodiment includes a base sheet 110 and a dye receiving layer 120 formed on the base sheet 110 .

[0030] In general, the dye-receiving layer is formed using a polymer resin as a main component. In order to improve heat resistance, curing agents such as polyisocyanates may be added to...

Embodiment 1

[0079] Based on the ratios listed in Table 1 below, AS-61 (a copolymer of styrene monomer and acrylonitrile monomer in a mixing ratio of 24:76) commercially available from Nippon Steel Chemical Co., Ltd. was used as the AS resin, A PEMA / HEMA copolymer was used as the acrylic resin. Then, AS resin and acrylic resin are mixed. Subsequently, the mixture was diluted with a mixed solvent of 2-butanone and toluene (mixing ratio of 1:1) so that the solid content of the mixture was 20% by mass, and then the thus obtained mixed solution for forming a dye-receiving layer was The mixed solution was applied to a synthetic paper of 150 μm (“YUPO FPG-150” commercially available from Oji Yuka) in an amount that could reach a thickness of 3 μm after drying, and dried at 120° C. for 1 minute to remove the solvent, thereby producing Examples 1 of the thermal transfer accepting sheets.

Embodiment 2 to 6 and comparative example 1 to 5

[0081] The thermal transfer receiving sheets of Examples 2 to 12 and Comparative Examples 1 to 5 were produced in the same manner as described in Example 1, except that the content of AS resin, the content of acrylic resin, the ratio of PEMA to HEMA The mixing ratio, the kind of the monomer of the acrylic resin, and the content of the polyester polyol were changed as listed in Table 1.

[0082] [Printing method using thermal transfer receiving sheet]

[0083] Using a thermal transfer printer (UP-DR200 printer commercially available from Sony Corporation) and an ink ribbon ( UPC-204 (commercially available from Sony Corporation) was printed on the thermal transfer receiving sheets of Examples 1 to 12 and Comparative Examples 1 to 6 manufactured as described above.

[0084] [Evaluation method of thermal transfer receiving sheet]

[0085] After printing, each thermal transfer receiving sheet was evaluated for sensitivity, light fastness, bleeding properties maintained at high t...

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Abstract

There is provided a thermal transfer sheet including a base sheet, and a dye receiving layer formed on the base sheet and containing a mixture of copolymer A including styrene and acrylonitrile as monomers and a copolymer B including 2-phenoxyethyl methacrylate and 2-hydroxyethyl methacrylate as monomers.

Description

technical field [0001] The present invention relates to a thermal transfer receiving sheet on which dye is thermally transferred. Background technique [0002] Thermal transfer methods utilizing sublimation dyes include transferring multiple color dots onto a thermal transfer receiving material by heating in a very short time, and reproducing a full-color image with a wide variety of color dots. In such a thermal transfer method, an image and a charter are formed by closely adhering a dye layer of a thermally transferring sheet on a thermally transfer receiving sheet, and according to an image signal by means such as The heating device of the heating head heats the thermal transfer sheet from the reverse side of the dye layer, and transfers the dye contained in the dye layer onto the thermal transfer receiving sheet. In this case, as the thermal transfer-receiving sheet, a sheet having a dye-receiving layer on the surface of a sheet-like base sheet that receives dye from th...

Claims

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Application Information

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IPC IPC(8): B41M5/385
CPCB41M2205/02B41M5/52B41M2205/32B41M5/5272B41M5/5254
Inventor 川上照季
Owner SONY CORP
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