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A preparation method of low-shrinkage secondary fiber release base paper

A secondary fiber, low shrinkage technology, applied in the field of papermaking, can solve the problem that the release base paper does not have good coating or gluing function, etc., achieve good laminating or gluing function, improve shrinkage performance, improve strength and smoothness degree of effect

Inactive Publication Date: 2018-07-31
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the release base paper produced with waste paper as the main raw material generally does not have good laminating or gluing functions, and to provide a low-shrinkage secondary fiber release paper with good laminating or gluing functions. Preparation method of type base paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation process: mixed stock tank - paper machine pulp tank - first stage slag remover - first stage pressure - headbox - paper machine wire section (clamp wire former) - paper machine press section (shoe press) - drying cylinder (pre-drying Part) - surface sizing machine - drying cylinder (post-drying) - cold cylinder - hard calender - coiling - rewinding completion - paper cutting, sorting, packaging and storage.

[0019] Process parameter description:

[0020] 1. Raw material ratio:

[0021] BKP line ratio: 40%-60% kraft chemically bleached long-fiber wood pulp + 40-60% chemically bleached thermomechanical wood pulp;

[0022] DMOW line ratio: 20%-30% 37# American waste + 20%-30% Japanese 3# waste paper + 50% national waste high-quality small and large flowers;

[0023] 2. Process parameters of the mixing tank: slurry concentration: 4.0%-5.0%;

[0024] 3. Process parameters of paper machine pulp tank: pulp concentration: 4.0%-5.0%;

[0025] 4. Process paramete...

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PUM

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Abstract

The invention discloses a preparation method of a low-shrinkage secondary fiber release raw paper. Through use of a unique raw material ratio, a slurry ratio and a paper making method, the preparation method solves the problem that a release raw paper prepared from waste papers as main raw materials has no good film spraying or glue coating functions. The preparation method can improve paper shrinkage, smoothness and strength. The produced low-shrinkage secondary fiber release raw paper has a shrinkage range of less than 3mm, front and rear surface smoothness of 40S or more, paper tensile strength MD greater than or equal to 2.8KN / M, paper tensile strength CD greater than or equal to 1.3KN / M and good film spraying or glue coating functions and is suitable for popularization application.

Description

technical field [0001] The invention relates to papermaking technology, in particular to a method for preparing low-shrinkage secondary fiber release base paper. technical background [0002] At present, in the waste paper and papermaking industry, the release base paper produced by using waste paper as the main raw material generally does not have good laminating or gluing functions, and the scope of use is relatively small. Due to immature production technology and other reasons, base paper manufacturers are unable to provide products with stable coating or glue coating effects to packaging and printing companies, resulting in low-shrinkage release base paper products demanded by packaging and printing companies mainly rely on wood pulp products or Imported products increase costs. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the release base paper produced with waste paper as the main raw material generally does n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/14D21H15/10
Inventor 刘名中刘晋嵩颜利兵林新阳
Owner DONGGUAN NINE DRAGONS PAPER IND