Production method for base paper of latex sandpaper

A production method and latex technology, applied in the field of papermaking, can solve the problems of low tensile strength, poor folding resistance, poor sandblasting adhesion, etc.

Inactive Publication Date: 2012-09-12
杭州新兴纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of imported base paper mainly has the disadvantages of poor fl...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Take 100% wood pulp (wood pulp imported from Canada, the trade name is Kamloops) and add water to prepare a slurry with a mass concentration of 3%;

[0021] 2) The slurry obtained in step 1) is crushed by a crusher and beaten by a disc refiner in turn to obtain a slurry with a mass concentration of 3.2%, a knock-down degree of 25oSR, and a wet weight of 10g;

[0022] 3) Add 0.5% latex (imported latex, trade name Styron Latex, model DPL6730) and 5% wet strength agent ( Hangzhou Weida Chemical Co., Ltd. produces and sells, the model is WD-805) for batching;

[0023] 4) After forming in the papermaking wire section, pressing and dehydrating, pre-drying in large vats, drying in two vats and calendering, drying in group vats, coiling, rewinding and cutting, the base paper is obtained;

[0024] 5) The base paper is coated on the back side by the coating machine and then the front side is coated. When coating, the amount of glue on the front side is controlled at 10 g / m2, ...

Embodiment 2

[0027] 1) Take 100% wood pulp (wood pulp imported from Canada, the trade name is Kamloops) and add water to prepare a slurry with a mass concentration of 4%;

[0028] 2) The slurry obtained in step 1) was crushed by a crusher and beaten by a disc refiner to obtain a slurry with a mass concentration of 3.6%, a knock-down degree of 29oSR, and a wet weight of 12g;

[0029] 3) Add latex (imported latex, trade name Styron Latex, model DPL6730) accounting for 2% of the mass of the slurry to the slurry obtained in step 2) and a wet strength agent accounting for 1% of the mass of the slurry ( Hangzhou Weida Chemical Co., Ltd. produces and sells, the model is WD-805) for batching;

[0030] 4) After forming in the papermaking wire section, pressing and dehydrating, pre-drying in large vats, drying in two vats and calendering, drying in group vats, coiling, rewinding and cutting, the base paper is obtained;

[0031] 5) The base paper is coated on the back side by the coating machine and...

Embodiment 3

[0034] 1) Take 100% wood pulp (wood pulp imported from Canada, the trade name is Kamloops) and add water to prepare a slurry with a mass concentration of 5%;

[0035] 2) The slurry obtained in step 1) was crushed by a crusher and beaten by a disc refiner to obtain a slurry with a mass concentration of 4.5%, a knock-down degree of 35oSR, and a wet weight of 15g;

[0036] 3) Add latex (imported latex, trade name Styron Latex, model DPL6730) accounting for 5% of the mass of the slurry to the slurry obtained in step 2) and a wet strength agent accounting for 10% of the mass of the slurry ( Hangzhou Weida Chemical Co., Ltd. produces and sells, the model is WD-805) for batching;

[0037] 4) After forming in the papermaking wire section, pressing and dehydrating, pre-drying in large vats, drying in two vats and calendering, drying in group vats, coiling, rewinding and cutting, the base paper is obtained;

[0038] 5) The base paper is coated on the back side by the coating machine an...

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Abstract

The invention discloses a production method for base paper of latex sandpaper. The production method comprises the following steps of: firstly, diluting wood pulp; secondly, sequentially crushing pulp by using a crusher and pulping by a disc mill; thirdly, mixing; fourthly, carrying out forming on a paper making mesh part, dehydration by squeezing, preliminary drying in a large vat, drying and calendaring in a second vat, drying a group of vats, winding, rewinding and splitting; and fifthly, coating, drying, winding, rewinding and splitting. The production method for the base paper of the latex sandpaper has the advantages of reasonable design, simple process steps and easiness in operation; and in addition, the base paper of the latex sandpaper, which is obtained by the production method disclosed by the invention, has the advantages of uniformity in paper surface smoothness, favorable sandblasting adhesion, folding strength and flexibility as well as tensile strength of paper of over 95N/cm.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a production method of latex sandpaper base paper. Background technique [0002] Latex sandpaper base paper is a special paper with high technical content and high added value. It is the first basic product of water sandpaper and Riken sandpaper. Latex sandpaper base paper is widely used in: polishing and surface repair of various automobile surfaces, plastics, mobile phone casings, artificial stone, glass fiber reinforced plastics, paint, and molds. It has high polishing finish, small dust, low friction temperature, long service life, and cost-effective advanced features. At present, the production of base paper for latex sandpaper is still technically blank in China, and the base paper used in China is all imported from the United States, Japan and other countries. At present, the use of imported base paper mainly has the disadvantages of poor flexibility (poo...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H11/00D21H21/20D21H19/84
Inventor 李建明
Owner 杭州新兴纸业有限公司
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