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Anti-counterfeiting heat-sensitive paper and method for producing same

A thermal paper, base paper layer technology, applied in papermaking, paper coatings, textiles and papermaking, etc., can solve the problems of increased process and increased energy consumption, and achieve the effect of excellent color development performance

Inactive Publication Date: 2016-12-07
GUANGDONG SONGYANG RECYCLE RESOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with ordinary thermal paper with only base coat and top coat, the three-proof paper coating process must be coated on the base paper at least three times, which not only increases the process, but also increases energy consumption.

Method used

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  • Anti-counterfeiting heat-sensitive paper and method for producing same

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Embodiment 1

[0023] An anti-counterfeiting thermal paper, comprising a base paper layer, a precoat layer coated on the base paper layer, and a top coat layer and a protective layer formed on the surface of the precoat layer;

[0024] The precoat layer contains fillers, adhesives and color developers, wherein the mass ratio of fillers, adhesives and color developers is 100:5-35:1-15, and the fillers are light calcium carbonate, silicon dioxide, calcined At least one of kaolin, flaky clay and hollow plastic pigment; the adhesive is at least one of styrene-butadiene latex, styrene acrylic resin, starch, polyvinyl alcohol and acrylic resin; the color developer is bisphenol A and 4 , at least one of 4′-dihydroxydiphenylsulfone,

[0025] The composition of the top coat is: 10-40 parts of filler, 10-25 parts of adhesive, 15-45 parts of developer solution, 15-40 parts of sensitizer solution, 5-25 parts of leuco dye solution, 5-15 parts of lubricant; 10-40 parts of oxidizing agent, 10-40 parts of ...

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Abstract

The invention discloses anti-counterfeiting heat-sensitive paper which comprises body paper layers, pre-coated layers, surface coated layers and protective layers. The pre-coated layers are coated on the body paper layers, and the surface coated layers and the protective layers are formed on the surfaces of the pre-coated layers; the pre-coated layers contain fillers, adhesive and color developing agents, a mass ratio of the fillers to the adhesive to the color developing agents is 100:5-35:1-15, and the fillers are at least one type of light calcium carbonate, silicon dioxide, calcined kaolin, flake argil and hollow plastic pigment; the adhesive is at least one type of styrene-butadiene latex, styrene acrylic resin, starch, polyvinyl alcohol and acrylic resin; the color developing agents are at least one type of bisphenol A and 4, 4'-dihydroxy diphenyl sulfone.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to an anti-counterfeiting thermal paper and a production method thereof. Background technique [0002] In recent years, three-proof thermal paper with high protective performance has been widely used in label purposes. Among them, it can include two categories: food labels and food labels, and generally requires at least water-resistant, oil-resistant, and plasticizer-resistant storage properties. The highly protective three-proof thermal paper is also used in the lottery field that requires high storage performance. [0003] Generally, three-proof thermal paper contains three coatings: base coat (or pre-coat, heat insulation layer), top coat (or heat-sensitive layer, color-developing layer), protective layer (or top coat) ). Among them, the base coat provides thermal insulation performance, the top coat provides color development performance, and the protective layer provide...

Claims

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Application Information

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IPC IPC(8): D21H19/82D21H19/64D21H19/58D21H19/54D21H19/60D21H19/46
CPCD21H19/82D21H19/46D21H19/54D21H19/58D21H19/60D21H19/64
Inventor 蔡建涛
Owner GUANGDONG SONGYANG RECYCLE RESOURCES
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