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Pressure-resistant carbon-free duplicating paper and production thereof

A carbonless copy paper, pressure-resistant technology, applied in the field of papermaking processing, can solve the problems of distortion, carbonless copy paper bluish, microcapsules easily broken, etc., and achieves long storage time, clear writing on the printed surface, and good pressure resistance. Effect

Inactive Publication Date: 2009-06-17
GUANGDONG GUANHAO HIGH TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the carbonless copy paper of "cash register and tax stamps" that the microcapsules are easy to break during the roll printing process, and the carbonless copy paper is bluish and distorted, and to provide a kind of carbonless copy paper with strong compression resistance. The microcapsules are not easy to break during the process, and the pressure-resistant carbonless copy paper and its production process will not appear bluish or distorted

Method used

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  • Pressure-resistant carbon-free duplicating paper and production thereof
  • Pressure-resistant carbon-free duplicating paper and production thereof
  • Pressure-resistant carbon-free duplicating paper and production thereof

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Embodiment Construction

[0045] Such as figure 1 As shown, the pressure-resistant carbonless copy paper of the present invention is composed of triplets, the back of the base paper 1 is coated with the color-developing layer 3 as the first couplet; the front of the base paper 1 is coated with the color-developing layer 4, and the back is coated with three layers of the color-developing layer 3 The pressure-sensitive paper is used as the middle page, and the middle page can be multiple pages; the base paper 1 is coated with a color-developing layer 4 on the front side and is the last page.

[0046] Production process for preparing pressure-resistant carbonless copy paper:

[0047] 1. Preparation of coating (unit: kg / ton paper dry weight)

[0048] 1. Preparation of microcapsules: Take 40% of water, 10% of sodium acrylate sulfamate, 12% of melamine formaldehyde resin, 37% of color oil, 15% of ammonia water, and 1.0% of formic acid at normal temperature. 28m / s, the pH value is adjusted to 3.0-5.0 during...

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Abstract

The invention is about a pressure carbon-free paper and its process. The aim of the invention is to solve the paper turning blue and skew ness in the roll-up printing process. The microcapsule is treated specially in the invention. The mean particle diameters about 3 microns and the opacity are about 75%. So it can be used for the double-sided printing and the word in the printing face is clear.

Description

technical field [0001] The invention relates to the field of papermaking and processing, in particular to pressure-resistant carbonless copy paper and its production process. Background technique [0002] With the progress and development of social science and technology, the demand for carbon-free copy paper, the scope of use, and the requirements are constantly expanding and deepening, and the performance and quality requirements for carbon-free copy paper are also continuously improving. At present, many "cash register tax stamps" are printed on rolls using carbonless copy paper. The microcapsules are easy to break, making the carbonless copy paper blue or even distorted, making it impossible to copy. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings of the carbonless copy paper of "cash register and tax stamps" that the microcapsules are easy to break during the roll printing process, and the carbonless copy paper is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/32B32B29/00D21H13/46D21H13/44
Inventor 黄阳旭王际德熊杰刘志浩李臻张丽红洪忠秀
Owner GUANGDONG GUANHAO HIGH TECH
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