Paint of carbonless copy paper

A carbonless copy paper and coating technology, applied in the field of paper making, can solve the problems of easy white spots or fisheye paper, serious warping of copy paper, insufficient coating dispersibility, etc., achieve shortened preparation time, good printing adaptability, and less foam Effect

Active Publication Date: 2015-05-13
湖北金民纤维材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing coatings take a long time to prepare, usually 6-7 hours, and the prepared coatings have insufficient dispersibility, white spots or fish-eye paper are easy to appear after coating, and the warping of carbon paper is serious

Method used

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  • Paint of carbonless copy paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A coating for carbonless copy paper, its composition and proportion are:

[0023] First prepare glue and white material. The glue is prepared from 10.78g of tapioca starch, 0.86g of CMC, and 88.36g of water. The white material is made of 61.68g of washed paste kaolin, 9.85g of light calcium carbonate, 0.99g of dispersant, and 27.1g of water. , Prepared from 0.49g of alkali.

[0024] Then use the above glue and white material to prepare CB material and CF material:

[0025] The CB material is made of 22 g of glue, 6.75 g of wheat starch, 20 g of microcapsules, 0.375 g of styrene-butadiene latex and 50.875 g of water;

[0026] The CF material is made of 23g of glue, 33.6g of white material, 0.25g of dispersant, 7.25g of color developer, 1.8g of styrene-butadiene latex, 0.4g of lubricant, and 33.7g of water;

[0027] The obtained CB material and CF material are coatings for producing carbonless copy paper.

Embodiment 2

[0029] A coating for carbonless copy paper, its composition and proportion are:

[0030] First, prepare glue and white material. The glue is prepared from 10 g of tapioca starch, 0.5 g of CMC, and 85 g of water. The white material is made of 60 g of water-washed paste-like kaolin, 9 g of light calcium carbonate, 0.99 g of dispersant, 27.5 g of water, and 0.6 g of alkali. g prepared.

[0031] Then use the above glue and white material to prepare CB material and CF material:

[0032] The CB material is made of 22.5 g of glue, 6 g of wheat starch, 20 g of microcapsules, 0.3 g of styrene-butadiene latex and 50 g of water;

[0033] The CF material is made of 23.5g of glue, 33g of white material, 0.2g of dispersant, 7g of color developer, 1.5g of styrene-butadiene latex, 0.45g of lubricant, and 33g of water;

[0034] The obtained CB material and CF material are coatings for producing carbonless copy paper.

Embodiment 3

[0036] Firstly, glue and white material are prepared. The glue is prepared from 12 g of tapioca starch, 1 g of CMC, and 90 g of water. The white material is made of 62 g of washed paste kaolin, 10 g of light calcium carbonate, 0.99 g of dispersant, 28 g of water, and 1.0 g of alkali Prepared.

[0037] Then use the above glue and white material to prepare CB material and CF material:

[0038] The CB material is made of 23 g of glue, 7 g of wheat starch, 22 g of microcapsules, 0.5 g of styrene-butadiene latex and 52 g of water;

[0039] The CF material is made of glue 24g, white material 34g, dispersant 0.3g, developer 8g, styrene-butadiene latex 2.0g, lubricant 0.5g, water 35g;

[0040] The obtained CB material and CF material are coatings for producing carbonless copy paper.

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Abstract

The invention provides paint of carbonless copy paper. A CB material is prepared by 22-23 parts of glue, 6-7 parts of a dispersant, 20-22 parts of microcapsule, 0.3-0.5 part of a binder and 50-52 parts of water; and a CF material is prepared by 23-24 parts of glue, 33-34 parts of a white material, 0.2-0.3 part of a dispersant, 7-8 parts of a developer, 1.5-2.0 parts of a binder, 0.4-0.5 part of a lubricant and 33-35 parts of water, wherein the while material is prepared by 60-62 parts of kaolin, 9-10 parts of light calcium carbonate, 0.9-1.0 part of a dispersant, 27-28 parts of water and 0.4-1.0 part of alkali. According to the invention, preparation time is obviously shortened and production efficiency can be effectively improved; the paint has a good dispersion effect, a good rheological property, and less foam; and carbonless copy paper prepared by the paint is high in strength, good in printing adaptability, and is not likely to warp.

Description

technical field [0001] The invention belongs to the field of papermaking and relates to the preparation of carbonless copy paper, in particular to a coating used for preparing carbonless copy paper. Background technique [0002] Because carbonless copying paper can be copied directly without inserting blue paper when copying, it is convenient, clean and pollution-free, replacing carbon copying paper, and is widely used in various types of bills, coupons, computer printing, etc. [0003] Carbonless copy paper is divided into upper paper, middle paper and lower paper. During processing, apply CB paint (called CB surface) on the lower side of the upper paper and middle paper, and apply CF paint (called CF surface) on the upper side of the middle paper and lower paper. When the upper paper, the middle paper, and the lower paper are grouped in sequence and then pressed by the nib or the printing needle, the different agents in the two coatings meet and show color marks, achievin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/44D21H19/40D21H19/10
Inventor 颜洲傅庆芳
Owner 湖北金民纤维材料科技有限公司
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