High-water-resistance thermal paper and preparation method thereof

A technology of thermal paper and performance, applied in the field of papermaking, can solve the problems affecting the use of paper, and achieve the effect of excellent water resistance and high preservation rate

Active Publication Date: 2017-03-22
GOLD EAST PAPER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In use, heat-sensitive paper mainly uses the energy provided by the print head to make the color developer in the heat-sensitive layer provide protons to react with the dye to produce the required patterns and characte

Method used

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  • High-water-resistance thermal paper and preparation method thereof

Examples

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Example Embodiment

[0043] Example 1

[0044] A thermal paper with high water resistance, including a base paper layer, a primer layer, a thermal layer, and a protective layer;

[0045] The base coat is: 100 parts of filler, 15 parts of adhesive, 50 parts of plastic pigment;

[0046] Heat-sensitive layer: 100 parts of filler, 150 parts of color developer dispersion, 100 parts of sensitizer dispersion, 25 parts of new adhesive, 50 parts of crosslinking agent, 20 parts of lubricant, 30 parts of dye dispersion;

[0047] Protective layer: 100 parts of filler, 100 parts of adhesive, 30 parts of cross-linking agent.

[0048] The new adhesive in the heat-sensitive layer is modified polyvinyl alcohol.

[0049] The grinding conditions for the color developer dispersion of the thermal layer are: 40 parts of color developer and 3 parts of polyvinyl alcohol, mixed to prepare a color developer dispersion with a concentration of 40% to 50%, and grind to 0.3 to 0.3 in a wet grinder. 1.5 microns;

[0050] The grinding cond...

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Abstract

The invention discloses a piece of high-water-resistance thermal paper, which comprises a base paper layer, an undercoat layer, a heat sensitive layer and a protective layer. A novel adhesive is used in the heat sensitive layer, and reacts with a cross-linking agent, so that the heat sensitive layer generates a water-impermeable dense coating, and the colored thermal paper still has relatively high color development density and high preservation rate after being soaked in water for 8 hours.

Description

technical field [0001] The invention belongs to the field of papermaking, and in particular relates to a heat-sensitive paper with high water resistance and a preparation method thereof. Background technique [0002] Thermal paper was industrialized by NCR Corporation of the United States in the 1970s. The consumption of thermal paper in the world is increasing at a rate of 20-25% per year, and the application field is constantly expanding, except for some commercial and household thermal fax machines. In addition, more thermal paper is also widely used in word processors, printing records of medical testing and industrial testing, printing of cash automatic payment machines and portable terminal printers, receipt records of highways, taxis, etc., and the rapidly developing Thermal labels and tickets. High-grade thermal paper is mainly used for thermal labels (food packaging, logistics label paper), train tickets, movie tickets, lottery tickets, plane boarding passes, etc. ...

Claims

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Application Information

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IPC IPC(8): D21H19/82D21H19/60D21H19/46D21H19/64D21H19/44D21H27/30D21H23/66D21H27/00D21H21/14
CPCD21H19/44D21H19/46D21H19/60D21H19/64D21H19/82D21H21/14D21H23/66D21H27/00D21H27/30
Inventor 钱威威陈汉彬李娟
Owner GOLD EAST PAPER JIANGSU
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