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Thermosensitive recording material and laminate

A heat-sensitive recording material and technology for heat-sensitive recording, applied in the direction of copying/marking methods, printing, printing devices, etc., to achieve the effects of good preservation, good contrast, and good color sensitivity

Pending Publication Date: 2020-04-10
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the application of heating food, since the heat-sensitive recording material to be printed is exposed to high temperature conditions, there is a problem that the color develops to a white part, resulting in the problem that barcodes and the like cannot be read

Method used

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  • Thermosensitive recording material and laminate
  • Thermosensitive recording material and laminate
  • Thermosensitive recording material and laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1～1-3 and comparative example 1-1～1-5

[0138] The following Examples 1-1 to 1-3 and Comparative Examples 1-1 to 1-5 were performed in order to confirm the difference in the effect by the compounding quantity of compound (1) and compound (2).

Embodiment 1-1

[0140] The respective liquids were mixed in the following ratios to prepare a coating liquid for a thermosensitive recording layer.

[0141] Liquid A: 18.87 parts

[0142] Liquid B: 0.02 parts

[0143] Liquid C: 10.00 parts

[0144] Liquid D: 18.89 parts

[0145] Liquid E: 29.75 parts

[0146] Liquid F: 9.95 parts

[0147] Liquid G: 32.64 parts

[0148] Next, when the dry weight of the thermosensitive recording layer becomes 6g / m 2 In the above method, the coating solution of the above-mentioned composition for the thermosensitive recording layer is coated on the paper provided with a bottom layer on one side of high-quality paper as a support, and dried by a blower dryer to form a thermosensitive recording layer. Apply 1kgf / cm to it with a super calender 2 The pressure was smoothed to obtain a thermosensitive recording material (laminated body).

Embodiment 1-2

[0150] Except having changed A liquid into 18.80 parts, and B liquid into 0.09 parts, it carried out similarly to Example 1-1, and manufactured the thermosensitive recording material (laminated body).

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Abstract

The purpose of the present invention is to provide a thermosensitive recording material and a laminate which have excellent color development sensitivity, low color development of white parts even athigh temperatures, excellent storability of printed parts, and excellent contrast between the white parts and the printed parts. In this thermosensitive recording material comprising a thermosensitiverecording layer on a support body, the thermosensitive recording layer contains a specific diphenyl sulfone compound and an analogous compound thereof in a specific ratio. Further, in this laminate comprising a thermosensitive recording layer on a support body, the thermosensitive recording layer contains a specific diphenyl sulfone compound and an analogous compound thereof in a specific ratio.

Description

technical field [0001] The present invention relates to a thermosensitive recording material and a laminate having good color sensitivity, little color development of white parts even at high temperatures, good storage stability of printed parts, and excellent contrast between white parts and printed parts. Background technique [0002] In general, thermosensitive recording materials having a thermosensitive recording layer mainly composed of a color developer that reacts with a leuco dye (hereinafter sometimes referred to as "dye") to develop color when heated are used in paper, film, card, etc. has been widely used in practical applications. When recording on this thermal recording material, a thermal printer or the like having a built-in thermal head is used. Compared with other recording methods that have been practically used in the past, this thermal recording method has the following characteristics: (a) there is no noise during recording, (b) no development and fixi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/333B41M5/337
CPCB41M5/333B41M5/337B41M5/3336B41M5/3333B41M2205/04B41M5/323B41M5/3375
Inventor 稻田圭一郎
Owner MITSUBISHI CHEM CORP
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