Method for manufacturing glass isolation paper

A manufacturing method and technology of release paper, which is applied in paper, papermaking, textiles and papermaking, etc., can solve the problems of cumbersome customs procedures, high price and great influence

Active Publication Date: 2017-06-27
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the glass release paper used in the high-end glass industry in China is mainly imported, which has a great impact on enterprises that need to use this product: ⑴

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] After disintegrating high-quality bleached kraft softwood pulp (pulp ash content ≤ 1.5%) in a hydropulper, it is beaten in series by three double disc mills, the beating concentration is 7.0%, and the beating degree of the bleached kraft softwood pulp after beating is for 45 o SR, enter the coniferous pulp tank after knocking, and enter the slurry flow delivery system after being stirred evenly. CPAM and 0.2% PAE wet strength agent, the slurry is diluted to 2.5%, and enters the grit ditch with magnetite to remove metal impurities in the slurry system; after the slurry is diluted by the slurry pump, it enters the first-level and third-stage slag removal After the filter and pressure screen, it is sent to the headbox for online feeding, and the online flow is adjusted. The online concentration: 0.3%, the online pH value: 4.0~5.0, and the basis weight of the paper is 50±1g / m 2 , net speed 650m / min, top net dehydration capacity 28%, headbox lip opening 9.5mm, double-sided ...

Embodiment 2

[0020] After disintegrating high-quality bleached kraft softwood pulp (pulp ash content ≤ 1.5%) in a hydropulper, it is beaten in series by three double disc mills, the beating concentration is 7.5%, and the beating degree of bleached kraft softwood pulp after beating is for 48 o SR, enter the coniferous pulp tank after knocking, and enter the slurry flow delivery system after being stirred evenly; the slurry is pumped into the fore pool in the pulp tank, and 4.0% of the dry pulp mass is added with 4.0% iron-free aluminum sulfate, 0.03% CPAM and 0.3% PAE wet strength agent, the slurry is diluted to 3.0%, and enters the grit ditch with magnetite to remove metal impurities in the slurry system; the slurry is diluted by the slurry pump and enters the first-level and third-stage slag removal After the filter and pressure screen, it is sent to the headbox for online feeding, and the online flow is adjusted. The online concentration: 0.3%, the online pH value: 4.0~5.0, and the basis...

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Abstract

The invention discloses a method for manufacturing glass isolation paper. According to the method, high-grade bleach sulfate softwood pulp is used as a raw material, and the glass isolation paper which is high in strength, stable in pH value, uniform in thickness, good in smoothness, high in cleanliness and good in softness is prepared through process steps of pulping and auxiliary material adding, wet paper page manufacturing with pulp, pressing dewatering, pre-drying, surface sizing and after-drying and the like.

Description

technical field [0001] The invention belongs to the technical field of special paper, in particular to a method for manufacturing glass release paper. Background technique [0002] Glass release paper is a special paper used to prevent the surface from being scratched or scratched by friction between glasses. This product requires paper with high strength, low basis weight, large bulk, good touch, clean paper surface, and appropriate pH value control. etc., mainly used in the high-end glass industry, such as mobile phone screen glass, plexiglass, etc. for transportation protection. At present, the glass release paper used in the high-end glass industry in China is mainly imported, which has a great impact on enterprises that need to use this product: (1) The supply cycle is long, the capital is large, and the customs procedures are cumbersome; (2) Imported paper is subject to technical blockade, The price is high and the cost is high, which affects the efficiency of the ent...

Claims

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Application Information

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IPC IPC(8): D21H27/06D21H11/04D21H17/66D21H17/37D21H21/20D21H17/28
CPCD21H11/04D21H17/28D21H17/37D21H17/66D21H21/20D21H27/06
Inventor 陈启杰李树林董徐芳周丽玲郑学铭王立强刘才志
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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