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Thermal recording material and process for producing same

A heat-sensitive recording material and technology for heat-sensitive recording, which are applied in the directions of temperature recording method, copying/marking method, printing, etc., can solve the problem that the invention cannot fully meet the requirements, etc.

Active Publication Date: 2012-11-14
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these inventions adequately satisfies the requirement

Method used

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  • Thermal recording material and process for producing same
  • Thermal recording material and process for producing same
  • Thermal recording material and process for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Preparation of coating solution for intermediate layer

[0065] 50 parts of calcined kaolin (manufactured by BASF: trade name Ansilex), 100 parts of organic hollow pigment particle dispersion (manufactured by Rolm & Haus: trade name HP91) with a solid content concentration of 27.5%, and 50% benzene A composition prepared by mixing 40 parts of ethylene / butadiene latex, 50 parts of a 10% aqueous solution of oxidized starch, and 100 parts of water was mixed and stirred to prepare a coating solution for an intermediate layer.

[0066] (2) Preparation of Coating Liquid for Thermosensitive Recording Layer 1

[0067] The following mixed liquids of (A), (B) and (C) were respectively pulverized with a Dyno-Mill (sand mill manufactured by WAB Co., Ltd.) to a volume average particle diameter of 1 μm or less to obtain respective dispersion liquids.

[0068] (A) Dye precursor dispersion

[0069] 3-dibutylamino-6-methyl-7-anilinofluorane 30 parts

[0070] 2.5% sulfone-modified...

Embodiment 2

[0088] (4) In the preparation of the coating solution for protective layer in Example 1, except that 0.25 parts of sodium glyoxylate was used instead of 0.25 parts of calcium glyoxylate, the same operations as in Example 1 were carried out to produce a thermosensitive recording material.

Embodiment 3

[0090] (4) In the preparation of the coating solution for the protective layer in Example 1, except for using 10% acetoacetyl-modified polyvinyl alcohol [manufactured by Nippon Synthetic Chemical Industry Co., Ltd.: trade name Z-410 (average degree of polymerization is about 2300, Saponification degree 97.5 ~ 98.5%)] 50 parts of aqueous solution instead of 10% acetoacetyl modified polyvinyl alcohol (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.: trade name Z-200) except 50 parts of aqueous solution, others carry out the same operation with embodiment 1 , to manufacture thermosensitive recording materials.

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Abstract

Disclosed is a thermal recording material which comprises a support and, formed thereon in the following order, a thermal recording layer that is thermally colored and a protective layer, wherein the protective layer comprises an acetoacetylated polyvinyl alcohol that has been crosslinked with a glyoxylic acid salt and with an epichlorohydrin resin.

Description

technical field [0001] The present invention relates to a heat-sensitive recording material having a heat-sensitive recording layer and a protective layer which develop thermochromism sequentially on a support, in particular, to a heat-sensitive recording material having excellent anti-adhesive properties and good offset printing suitability and its method of manufacture. Background technique [0002] Thermosensitive recording materials are generally products that are provided with a thermosensitive recording layer on a support, and the thermosensitive recording layer contains a power-supplying, usually colorless or light-colored dye precursor, and an electro-absorbing compound (electron -accepting compound) as the main component, after being heated by a thermal head, hot pen, laser, etc., the donating compound as a dye precursor reacts instantaneously with the absorbing compound as a chromogen to record an image. The heat-sensitive recording material as mentioned above can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/28B41M5/30B41M5/42
CPCB41M2205/04B41M5/426B41M2205/40B41M5/44
Inventor 松本真一郎
Owner MITSUBISHI PAPER MILLS LTD