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Thermal transfer recording medium

一种记录介质、热敏转印的技术，应用在温度记录法、印刷、打印装置等方向，能够解决染料析出、增加染料、不能得到充分的印刷浓度等问题，达到不易染料的析出、转印灵敏度高、保存稳定性良好的效果

Active Publication Date: 2019-12-06
TOPPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the printing speed of thermal transfer is increased, there will be a problem that sufficient printing density cannot be obtained in conventional thermal transfer recording media.
Therefore, in order to improve the transfer sensitivity, attempts were made to increase the ratio of dye / resin (Dye / Binder) in the dye layer to increase the printing density or the transfer sensitivity during printing, but increasing the dye not only leads to an increase in cost, but also causes dye leaching. , Dirty version (ground pollution れ) and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062]

[0063] As the substrate 10 , a polyethylene terephthalate film with a thickness of 4.5 μm was used, and the heat-resistant slippery layer 40 was laminated on one surface to prepare the substrate 10 with the heat-resistant slippery layer 40 . In detail, the coating amount after drying is 1.0 g / m by the gravure coating method 2 A coating solution for a heat-resistant slippery layer having the following composition was coated on one surface of the substrate 10 and dried at 100° C. for 1 minute. Thereafter, aging was carried out for one week in an environment of 40° C., whereby the substrate 10 with the heat-resistant sliding layer 40 was obtained.

[0064]

[0065]

[0066]

[0067] Add 854 parts of dimethyl terephthalate, 355 parts of isophthalic acid-5-sodium sulfonate, 186 parts of ethylene glycol, and 742 parts of diol and 1 part of zinc acetate as a reaction catalyst.

[0068] Next, these materials were heated from 130° C. to 170° C. over 2 hours, and aft...

Embodiment 2

[0075] The thermal transfer recording of Example 2 was obtained in the same manner as in Example 1, except that the dye layer 30 was formed using the dye layer coating solution-2 of the following composition instead of the dye layer coating solution-1. medium.

[0076]

[0077]

Embodiment 3

[0079] The thermal transfer recording of Example 3 was obtained in the same manner as in Example 1, except that the dye layer 30 was formed using the dye layer coating solution-3 of the following composition instead of the dye layer coating solution-1. medium.

[0080]

[0081]

[0082]

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PUM

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Abstract

Provided is a thermal transfer recording medium that is resistant to the occurrence of dye precipitation and scumming (good storage stability) and has a high dye transfer sensitivity. The thermal transfer recording medium (1) according to an embodiment of the present invention has a heat-resistant slip layer (40) laminated on one side of a substrate (10) and an undercoat layer (20) and a dye layer(30) laminated in the indicated sequence on the other side. The dye layer (30) contains compounds I, II, and III as a cyan dye and also contains, as binder, a polyvinyl acetal resin, a phenoxy resin,and a graft copolymer in which the main chain comprises polycarbonate and the side chain comprises a vinyl polymer.

Description

technical field [0001] The present invention relates to thermosensitive transfer recording media. Background technique [0002] In general, a thermal transfer recording medium is called a thermal ink ribbon, and is used, for example, as an ink ribbon of a thermal transfer type printer. Examples of conventional thermal transfer recording media include those described in Patent Documents 1 and 2. Patent Document 1 and Patent Document 2 describe thermal transfer in which a thermal transfer layer is provided on one surface of a substrate and a heat-resistant slippery layer (back coat layer) is provided on the other surface of the substrate. recording medium. Here, the thermal transfer layer has a layer (dye layer) containing ink, and the ink is sublimated (sublimation transfer method) or melted (melt transfer method) by the heat generated at the thermal head of the printer, thereby Transfer to the side of the object to be transferred. [0003] For thermal transfer recording ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/385B41M5/395B41M5/44
CPCB41M5/395B41M5/44B41M2205/02B41M2205/06B41M2205/28B41M2205/30B41M5/39B41M5/3852B41M5/3858B41M2205/36B41M2205/38B41M5/385
Inventor 福永悟大
Owner TOPPAN INC