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Thermal transfer ink, thermal transfer sheet and method of thermal transfer recording therewith

A technology of thermal transfer printing and ink, which is applied in the direction of copying/marking methods, inks, chemical instruments and methods, etc. It can solve the problems of large molecular light absorption coefficient and no safety problems, and achieve good light fastness and good light fastness.

Inactive Publication Date: 2007-01-31
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 4) Molecular absorption coefficient is large
[0011] 8) No security issues

Method used

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  • Thermal transfer ink, thermal transfer sheet and method of thermal transfer recording therewith
  • Thermal transfer ink, thermal transfer sheet and method of thermal transfer recording therewith
  • Thermal transfer ink, thermal transfer sheet and method of thermal transfer recording therewith

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] A mixture of the following compositions was treated with an ultrasonic cleaner for 30 minutes to prepare Ink (Y) and Ink (C).

[0099] [Composition (parts by weight) of ink (Y)]

[0100] No.1-1 dye: 3.0

[0101] No.2-1 Dye: 3.0

[0102] Phenoxy resin ("PKHJ", manufactured by Union Carbide Corporation): 10 Tetrahydrofuran: 90

[0103] [Composition (parts by weight) of ink (C)]

[0104] Cyan dye (structural formula (III)): 8.0

[0105] Phenoxy resin ("PKHJ", manufactured by Union Carbide Corporation): 10 Tetrahydrofuran: 90

[0106]

[0107] The resulting ink (Y) and ink (C) were applied to a polyethylene terephthalate film (6 μm thick) using a wire-wound bar coater, and dried (approximately 1 μm dry film thickness) to form a color material layer. An acrylic resin containing 10 parts by weight (trade name: BR-80, produced by Mitsubishi Rayon Co., Ltd.), 1 part by weight of amino-modified silicone oil (trade name: KF393, produced by Shin-Etsu Chemical Co. And the...

Embodiment 2～3

[0114]Ink preparation, thermal transfer sheet preparation, transfer recording, and lightfastness testing were performed in the same manner as in Example 1, except that the dyes shown in Table 3 were used as the yellow dyes. The results are shown in Table 4.

Embodiment 4

[0137] Using an ink prepared by the following method instead of the ink used in Example 1, preparation of a transfer sheet, transfer recording and evaluation were performed in the same manner as in Example 1, whereby recording with uniform color density was obtained. And it was confirmed that the recorded matter thus obtained had good light resistance.

[0138] [Composition of ink (parts by weight)]

[0139] No.1-1 dye: 3.0

[0140] No.2-1 Dye: 3.0

[0141] AS resin (product name: Denka AS-S, produced by Denka Kagaku Kogyo Co., Ltd.): 10

[0142] Toluene: 70

[0143] Cyclohexanone: 10

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PUM

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Abstract

A thermal transfer sheet and yellow ink for use in thermal transfer, with which highly dense clear yellow color can be exhibited with low energy, with which a thermal transfer record excelling in color tone and light fastness can be obtained, and with which a highly dense preferable green tone can be exhibited when mixed with cyan, and to provide a thermal transfer sheet. There is provided a dye composition characterized by containing a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton. There is further provided a thermal transfer ink characterized by containing a dye having an arylidene pyrazolone skeleton, a dye having a bispyrazolone methine skeleton and a medium. There is still further provided a thermal transfer sheet comprising a base material and, superimposed thereon, a color material layer containing a dye having an arylidene pyrazolone skeleton and a dye having a bispyrazolone methine skeleton.

Description

technical field [0001] The present invention relates to a thermal transfer ink for thermal transfer recording (especially dye transfer type thermal transfer recording), a thermal transfer recording sheet and a thermal transfer recording method using the thermal transfer recording sheet. Background technique [0002] Dye transfer type thermal transfer recording is a recording method in which a thermal transfer sheet having a colorant layer contained on a base film is superimposed on an image receiving sheet having a dye receiving layer on the surface. The thermally transferable dye is formed; the thermal transfer sheet is heated, so that the dye in the thermal transfer sheet is transferred to the image-receiving sheet, thereby realizing recording. This recording method is used for full-color image recording in video printers and the like because it enables gradation expression by controlling the transfer amount of the dye by the amount of heating energy. [0003] In such dye...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B23/00C09D11/00B41M5/385
CPCB41M5/3854C09B23/04C09B67/0033B41M5/3858C09B67/0034C09D11/037B41M5/385
Inventor 石田美织
Owner MITSUBISHI CHEM CORP
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