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Papermaking process of liquid crystal glass interleaving paper

A technology of liquid crystal glass and spacer paper, which is applied in the field of papermaking, can solve the problems of mildew, liquid crystal glass spacer paper sticking to the net, broken ends and paper use, etc., to achieve the effect of reducing sticking to the net and solving the phenomenon of mildew

Inactive Publication Date: 2017-08-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a papermaking process of liquid crystal glass spacer paper, which solves the problems of sticking to the net, sticking cylinder, broken end, etc. of the liquid crystal glass spacer paper in the process of papermaking and the use process of the paper. problems such as mildew in the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Firstly, the pulp fibers are subjected to pre-refinement treatment, and then the wet paper web strength of the liquid crystal glass spacer paper is ensured by properly adjusting the beating degree of the fibers and adding a debonding agent, and the tightness of the paper sheet caused by the increase in the beating degree of the pulp fibers is solved If it is too large, the air permeability of the paper sheet will decrease.

[0026] The papermaking process of the aforementioned liquid crystal glass spacer paper comprises the following specific steps:

[0027] 1) Pulp selection: choose early wood type softwood pulp for long fibers, and consider the requirements of liquid crystal glass spacer paper for wet paper web strength and paper air permeability, and choose to mix 70%~80% hardwood pulp;

[0028] 2) Refining: Refining the earlywood softwood pulp and hardwood pulp respectively, the beating degree of the earlywood softwood pulp is 28ºSR; the beating degree of the hardwo...

Embodiment 2

[0035] The papermaking process of the aforementioned liquid crystal glass spacer paper comprises the following specific steps:

[0036] 1) Pulp selection: choose early wood type softwood pulp for long fibers, and consider the requirements of liquid crystal glass spacer paper for wet paper web strength and paper air permeability, choose to mix 80%~90% hardwood pulp;

[0037] 2) Refining: Refining earlywood softwood pulp and hardwood pulp respectively, the beating degree of earlywood softwood pulp is 40ºSR; the beating degree of hardwood pulp is 18ºSR; The beating concentration of leaf wood pulp and hardwood pulp is 20%;

[0038] 3) Pulp blending: the percentages of early wood type softwood pulp and hardwood pulp are 10% and 90% respectively; the amount of debonding agent is 1%; wherein, the quantitative value of the liquid crystal glass spacer paper is 80g / m 2 ;

[0039] 4) Papermaking: papermaking is carried out on a fourdrinier paper machine after mixing the pulp according ...

Embodiment 3

[0044] The papermaking process of liquid crystal glass spacer paper includes the following specific steps:

[0045] 1) Pulp selection: In terms of pulp selection, bleached kraft earlywood softwood pulp is selected for long fibers, and an appropriate amount of bleached kraft broadwood is selected in consideration of the wet strength requirements of the paper web during the production of liquid crystal glass spacer paper. Leaf pulp;

[0046] 2) Refining: Refining earlywood softwood pulp and hardwood pulp respectively, the beating degree of earlywood softwood pulp is 30ºSR; the beating degree of hardwood pulp is 22ºSR; wherein, the earlywood type needlewood pulp The beating concentration of leaf wood pulp and hardwood pulp is 12%;

[0047] 3) Pulp blending: the percentages of earlywood type softwood pulp and hardwood pulp are 40% and 60% respectively; the amount of debonding agent is 0.25%; wherein, the quantification of the liquid crystal glass spacer paper is 50g / m 2 ;

[00...

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Abstract

Provided is a papermaking process of a liquid crystal glass interleaving paper. The process includes the steps of selection of sizing agents, pulp grinding, pulp allocation, papermaking, squeezing for dehydration, and drying. The pulp materials of the liquid crystal glass interleaving paper are prepared from 10%-40% of bleached softwood pulp, 60%-90% of bleached hardwood pulp, and 0-1% of debonding agent, wherein the beating degree of softwood is 24-40 osr, and the beating pulp of hardwood is 18-30 osr. By combining multiple sorts of measures, according to the papermaking process of a liquid crystal glass interleaving paper, a liquid crystal glass interleaving paper of high wet-web strength and high paper permeability is prepared; during the papermaking process of the liquid crystal glass interleaving paper, a low wet-web strength can lead to sticking webs and vats, breaking webs, and shutting down machines; however, by using the papermaking process of a liquid crystal glass interleaving paper, the frequency of sticking webs, sticking vats and breaking webs and the risk of shutting down machines are decreased, and signs of mould resulted from a low paper permeability during the process of using the product are eliminated.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a papermaking process of liquid crystal glass spacer paper. Background technique [0002] Liquid crystal glass spacer paper is used as the separation paper between various types of LCD screens. It is required that the paper has good air permeability, smooth and delicate surface, no lint and powder loss, and plays a role of protection and isolation during the transportation of flat panel displays. Due to the long-term transportation and storage of the liquid crystal glass spacer, mildew and other phenomena will occur due to changes in environmental humidity and other reasons, which will corrode the liquid crystal glass substrate and damage the expensive liquid crystal glass substrate. A common way to solve this problem is to increase the air permeability of the liquid crystal glass spacer paper, so that the air between the liquid crystal glass substrates can circul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/00D21H21/14
CPCD21H27/00D21H11/00D21H21/14
Inventor 徐永建刘芬芬李伟
Owner SHAANXI UNIV OF SCI & TECH
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