A kind of manufacturing process of sandwich paper in grinding steel paper

A production process and technology of sandwich paper, which is applied in papermaking, paper, textiles and papermaking, etc., can solve the problems of low tearing degree and inability to test sandwich paper, and achieve the effects of reducing fiber length, improving binding force and enhancing plasticity

Active Publication Date: 2021-05-18
新疆源一科创有限公司
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Problems solved by technology

[0006] The present invention intends to provide a manufacturing process of sandwich paper in ground steel paper to solve the problem in the prior art that the sandwich paper produced by wood pulp has a low tear degree and cannot pass the bending snap test of ground steel paper

Method used

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  • A kind of manufacturing process of sandwich paper in grinding steel paper
  • A kind of manufacturing process of sandwich paper in grinding steel paper
  • A kind of manufacturing process of sandwich paper in grinding steel paper

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Embodiment

[0029] The embodiment is basically as attached figure 1 Shown:

[0030] Step 1, pulping: prepare wood fiber (length 2-4mm, diameter about 0.035mm), polyester ultra-short fiber (specification 1.67dtex, length 5mm, diameter about 0.035mm, also known as polyethylene terephthalate ester), binder (polyvinyl alcohol fiber with a hydrolysis temperature of 60°C) and dispersant (non-ionic polyethylene oxide); the wood fiber is pulped, and the wet weight of pulp obtained by pulping is 15-17g.

[0031] Step 2, partial beating: Divide the pulp into two parts, beating the pulp with a proportion of 60-75%, and not beating the pulp with a proportion of 25-40%; adopt the beating method of dividing the silk broom After the beating of 60-75% of the slurry is completed, the degree of beating is 20-30°SR, and the wet weight is 10-15g.

[0032] Step 3, pulping: send all the pulped and unbeaten pulp into the pulping tank, and add polyester ultra-short fiber and adhesive to the pulping tank, so th...

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Abstract

The invention relates to the technical field of steel paper, and specifically discloses a process for making sandwich paper in ground steel paper. Step 1, pulping: take wood fibers, pulp the wood fibers, and obtain pulp with a wet weight of 15- 17g; step 2, partial beating: divide the slurry into two parts, beat the slurry with a proportion of 60-75%, and not beat the slurry with a proportion of 25-40%; step 3, mix the slurry: Send all the beating and unbeaten pulp into the pulping tank, and add polyester ultra-short fiber and adhesive to the pulping tank, so that the wood fiber after beating, unbeaten wood fiber, polyester ultra-short fiber and Stir the adhesive evenly; step 4, surf the net, dehydrate and dry. This solution is used to solve the problem in the prior art that the sandwich paper produced by wood pulp has a low tear degree and cannot pass the bending snap test of the abrasive steel paper for high-strength machining.

Description

technical field [0001] The invention relates to the technical field of steel paper, in particular to a manufacturing process of sandwich paper in ground steel paper. Background technique [0002] Steel paper base paper is mainly special paper made of plant fiber by paper machine. After layer-by-layer stacking and gelation reaction, steel paper base paper can be made into steel paper. The steel paper is hard and has excellent elasticity. Wear resistance, corrosion resistance, heat resistance, mechanical strength, insulation performance and machining formability, it is very easy to apply to various machining, such as cutting, drilling, bonding, punching and grinding. [0003] The steel paper used for grinding in the prior art (hereinafter collectively referred to as grinding steel paper) is divided into a surface layer and a sandwich layer according to the structure of the grinding steel paper. The steel paper base paper of the surface layer is also called face paper, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/34D21H21/08
CPCD21B1/345D21H21/08
Inventor 胡越段爱琴贾海健
Owner 新疆源一科创有限公司
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