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Production method of high-performance latex paper

A latex paper and paper machine technology, applied in pulp beating/refining method, special paper, paper, etc., can solve the problems of low wear resistance, unstable size, poor liquid resistance, etc., to improve strength and wear resistance Performance, good strength and water resistance, effect of retaining fiber length

Inactive Publication Date: 2011-09-21
郭友实
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention focuses on solving the problems of low wear resistance, poor liquid resistance, and unstable size widely existing in similar products, and at the same time improves the strength of the product in all aspects to make the product more durable, thereby providing a new high-performance latex paper production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of method that adopts rotary screen multi-cylinder paper machine to produce latex paper, concrete process is as follows:

[0031] 1) Slurry preparation:

[0032] a, pulp composition--50% bleached kraft softwood pulp, 45% natural kraft softwood pulp, 5% man-made fiber;

[0033] b. Coniferous wood pulp beating--mix the above two coniferous wood pulps in proportion and put them into 10m 3 In the medium-consistency pulper, add water at room temperature and stir for 15 minutes to make pulp with a mass concentration of 10%. After the disintegration is completed, pump it into the pulp tank and dilute it with water to a thin pulp with a mass concentration of 5.0%. Next, use 4 LEC Refining the above-mentioned thin paper pulp to a beating degree of 26°SR and a wet weight of 12g with a double-disc refiner, then concentrating the milled pulp to a mass concentration of 8%, and then using two series-connected The medium consistency refiner further refines th...

Embodiment 2

[0044] Embodiment 2: a kind of method that adopts rotary screen multi-cylinder paper machine to produce latex paper, concrete process is as follows:

[0045] 1) Slurry preparation:

[0046]a, pulp composition--55% bleached kraft softwood pulp, 40% natural kraft softwood pulp, 5% man-made fiber;

[0047] b. Coniferous wood pulp beating--mix the above two coniferous wood pulps in proportion and put them into 10m 3 In the medium-consistency pulper, add water at room temperature and stir for 15 minutes to make pulp with a mass concentration of 10%. After the disintegration is completed, pump it into the pulp tank and dilute it with water to a thin pulp with a mass concentration of 5.5%. Next, use 4 LEC Refining the above-mentioned thin paper pulp to a beating degree of 28°SR and a wet weight of 13g with a double-disk refiner, then concentrating the milled pulp to a mass concentration of 10%, and then using two series-connected The medium consistency refiner further refines th...

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Abstract

The invention discloses a method for producing latex paper by using a circular-net multi-cylinder paper machine. 50 to 60 percent of bleached sulfate soft wood pulp, 35 to 45 percent of non-bleached sulfate soft wood pulp and 5 percent of manmade fiber are adopted, and the following technology is used at the same time so as to make the product better: defibrinating by using a previous-low-concentration fiberizer and a rear-middle-concentration fiberizer so that the beating degree is higher and the length of the fiber can be retained to the maximum extent, and the body paper has higher tensile strength and flexibility and is hard to break during use; besides the two different soft wood pulps, a certain amount of manmade fiber is added into the fiber raw material, so that the strength and the anti-abrasion performance of latex paper are enhanced; the body paper subjected to dipping treatment according to an optimized latex formula has higher strength and water, oil and high temperature resistance performance; a specific surface coating and back coating mode is performed on the dipped body paper, so the tensile strength, the bending resistance and the liquid resistance of the finished paper are enhanced; meanwhile, the latex paper is softer and durable, and higher in the surface strength.

Description

technical field [0001] The invention relates to the field of special paper production, in particular to a production method of high-performance latex paper. Background technique [0002] Latex paper, also known as high-quality water-resistant sandpaper base paper, is the base material of high-performance latex sandpaper. After the base material is bonded with abrasive grains with adhesive, it is used for grinding and polishing the surface of various objects. [0003] At present, the latex paper produced in China generally has problems such as poor wear resistance, water resistance, high temperature resistance, solvent resistance, and low surface smoothness and dimensional stability of the paper, which cannot meet the actual use requirements; while domestic production of high-grade sandpaper uses All latex paper is imported from developed countries. Although the quality meets the requirements, the cost is relatively high. CN101182694A discloses a kind of production method of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21D1/20D21H13/00D21H17/67D21H17/57D21H17/28D21H21/00
Inventor 郭友实
Owner 郭友实
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