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High-stability thermosensitive paper and preparation method thereof

A heat-sensitive paper and high-performance technology, applied in the field of papermaking, can solve problems such as fading, prone to reverse reactions, and affecting the use effect, and achieve the effects of improving stability, ensuring water resistance, and high water preservation rate

Inactive Publication Date: 2017-01-25
GOLD HUASHENG PAPER SUZHOU IND PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermal paper is more and more widely used in logistics labels, metering labels, lottery tickets, train tickets, etc. Thermal paper is prone to reverse reaction when it meets water after printing and color development, causing it to fade and affect the use effect

Method used

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  • High-stability thermosensitive paper and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A heat-sensitive paper with high stability, including a base paper layer, a pre-coat layer and a color-developing layer.

[0033] The composition of the pre-coat is: 50 parts of filler, 10 parts of adhesive; the coating amount of pre-coat is controlled at 11g / m 2 .

[0034] The chromophoric layer was prepared as follows:

[0035] Preparation of color developer dispersion: 35 parts of 2,4 diphenylsulfone phenol, 3 parts of polyvinyl alcohol, mixed and dispersed to form a dispersion with a concentration of 35%, and ground in a wet grinder until the particle size is 1 μm;

[0036] Preparation of sensitizer dispersion: 35 parts of 1,2 diphenoxyethane, 3 parts of polyvinyl alcohol, mixed and dispersed to form a dispersion with a concentration of 35%, and ground in a wet grinder until the particle size is 0.8 μm;

[0037] Preparation of dye dispersion: 35 parts of 2-(2-4-xylanilino)-3-methyl-6-diethylaminofluorane, 3 parts of polyvinyl alcohol, mixed and dispersed into a di...

Embodiment 2

[0043] A heat-sensitive paper with high stability, including a base paper layer, a pre-coat layer and a color-developing layer.

[0044] The composition of the pre-coating is: 100 parts of filler, 25 parts of adhesive; the amount of pre-coating is controlled at 11g / m 2 .

[0045] The chromophoric layer was prepared as follows:

[0046] Preparation of color developer dispersion: 35 parts of 4,4'-sulfonyl bis[2-(2-propenyl)]phenol, 5 parts of polyvinyl alcohol, mixed and dispersed to form a dispersion with a concentration of 35%, in a wet grinder Grinding to a particle size of 1 μm;

[0047] Preparation of sensitizer dispersion: 35 parts of diphenyl sulfone, 5 parts of polyvinyl alcohol, mixed and dispersed to form a dispersion with a concentration of 35%, and ground in a wet grinder until the particle size is 0.8 μm;

[0048] Preparation of dye dispersion: 35 parts of 2-(2-4-xylanilino)-3-methyl-6-diethylaminofluorane, 5 parts of polyvinyl alcohol, mixed and dispersed into a...

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Abstract

The invention discloses high-stability thermosensitive paper which comprises a raw paper layer as well as a precoating layer and a color development layer sequentially coating the raw paper layer. In the invention, a stabilizer is added into the color development layer to improve the stability of a color development group so as to guarantee the water resistance of the thermosensitive paper; and after being soaked in water for 8 hours, the thermosensitive paper still has relatively high light density, and the preserving rate of an image in water is high.

Description

technical field [0001] The invention belongs to the field of papermaking, and in particular relates to a heat-sensitive paper with high stability. Background technique [0002] The use of heat-sensitive paper is mainly through the heat provided by the print head, so that the chromogen in the chromogenic layer provides protons to react with the leuco dye to produce the required patterns and characters. Thermal paper is more and more widely used in logistics labels, metering labels, lottery tickets, train tickets, etc. After printing and coloring, thermal paper is prone to reverse reaction when it meets water, causing it to fade and affect the use effect. People have higher and higher demands on the water resistance of thermal paper, and high stability of thermal paper is required. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention discloses a heat-sensitive paper with high stability, which has strong water res...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H21/14D21H19/82D21H19/64D21H19/54D21H19/58D21H19/60D21H19/46
CPCD21H27/00D21H19/46D21H19/54D21H19/58D21H19/60D21H19/64D21H19/822D21H21/14
Inventor 李建陈汉彬李娟
Owner GOLD HUASHENG PAPER SUZHOU IND PARK
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