Method of producing copying paper

A production method and technology of copying paper, applied in paper, papermaking, paper machines, etc., can solve problems such as holes, sticking felts, paper sticking rollers, etc., and achieve the effects of preventing settlement, not being easy to settle, and reducing settlement

Inactive Publication Date: 2007-08-15
福建省晋江优兰发纸业有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of using waste paper to produce copy paper according to the above process, it was found that a large amount of adhesive substances in a semi-molten state were gradually deposited on the net, blanket, and drying cylinder, resulting in stic

Method used

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Embodiment Construction

[0009] The embodiment discloses a production method of copy paper, which sequentially includes pulp board crushing, beating or refining, pulp blending, purification, pulp screening, headbox pulp discharge, wire dehydration, press dehydration, drying, and calendering in an assembly line manner. , take-up, slitting, rewinding, packaging and other processes, the foregoing process steps and the equipment used are known and are being continuously improved. Below, only the corresponding process steps involved in the improved part of the present invention will be illustrated, specifically include:

[0010] a. During the pulverization process of the pulp board in the hydraulic pulper, 1% by weight of talcum powder is added. The mesh number of the talcum powder is between 800 and 1000. In this step, the inorganic powder does not cover the sticky matter. surface to reduce the settling of stickies in the pulp;

[0011] b. In the process of mixing pulp, in addition to adding colorants, c...

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PUM

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Abstract

The invention provides a copy paper preparation which can avoid depositing adhesive in the pulping process, wherein the invention adds anti-deposit material in present pulping process that adds talcum powder into pulping process, adds the compound of poly-sodium acrylate and acroleic acid-maleic anhydride polymer in the pulp preparation, adds cation polyacrylamide into screened pulp to avoid depositing adhesive.

Description

technical field [0001] The invention relates to a method for producing copy paper. Background technique [0002] The papermaking process is well-known, and its technological process includes: pulp sheet preparation -- pulp sheet crushing -- beating or refining -- pulp blending -- purification -- pulp screening -- pulp output from headbox -- wire dehydration -- - Pressing and dehydration--drying--calendering--rolling--rewinding--packing. The above-mentioned papermaking process is partially adjusted according to the different types and specifications of the paper to be produced. In the process of using waste paper to produce copy paper according to the above process, it was found that a large amount of adhesive substances in a semi-molten state were gradually deposited on the net, blanket, and drying cylinder, resulting in sticky net, sticky felt, sticky cylinder, and sticky rolls on the paper , holes and other unfavorable conditions, resulting in low efficiency of the dryin...

Claims

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Application Information

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IPC IPC(8): D21F11/00D21H23/16D21H21/24D21H21/38D21H17/55
Inventor 余仕发
Owner 福建省晋江优兰发纸业有限公司
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