Process for preparing electrolytic capacitor paper

A technology for electrolytic capacitor paper and pulp, applied in the field of papermaking, can solve the problems of unsatisfactory lateral water absorption of electrolytic capacitor paper, and achieve the effects of uniform thickness and tightness, high purity and uniform fiber arrangement

Inactive Publication Date: 2006-06-28
ZHEJIANG KAN SPECIALITIES MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problem of unsatisfactory horizontal water absorption of electrolytic capacitor paper, the purpose of the present invention is to provide an electrolytic capacitor paper that can effectively improve the lateral water absorption performance of electrolytic capacitor paper, with high purity, uniform paper quality, uniform thickness and tightness, and uniform fiber arrangement. Preparation method of capacitor paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The pulp of the pressure-resistant layer paper of the electrolytic capacitor paper is sisal pulp, the beating degree is 40°SR, and the wet weight is 14.5g. The pulp of the absorbing layer paper is tsumata pulp, the beating degree is 23°SR, and the wet weight is 19g. The paper pulp of the absorbing layer paper is made by a fourdrinier paper machine, and the paper pulp of the pressure-resistant layer paper is made by a cylinder paper machine.

[0018] The pulp fiber of the absorbing layer is hung on the ash net of the side wave finder paper machine and transferred to the felt through the transfer roller. Pulp composite molding to form composite pulp fibers. After the composite pulp fiber is separated from the felt, it enters the drying cylinder for drying treatment. When drying, the pressure-resistant layer paper is pasted on the cylinder for drying, and the dried paper is wound on the reel to obtain the finished electrolytic capacitor paper.

[0019] After measurement, ...

Embodiment 2

[0021] The pulp of the pressure-resistant layer of the electrolytic capacitor paper is wood pulp with a beating degree of 67°SR and a wet weight of 5.6g. The pulp of the absorbing layer paper is Manila hemp pulp with a beating degree of 18°SR and a wet weight of 27g. The pulp of the absorbing layer paper is made by a fourdrinier paper machine, and the pulp of the pressure-resistant layer paper is made by a cylinder paper machine.

[0022] The pulp fibers of the absorbing layer are hung on the polyester net of the fourdrinier paper machine and transferred to the felt through the transfer roller. Composite molding of pulp to form composite pulp fibers. After the composite pulp fiber is separated from the felt, it enters the drying cylinder for drying treatment. When drying, the pressure-resistant layer paper is pasted on the cylinder for drying, and the dried paper is wound on the reel to obtain the finished electrolytic capacitor paper.

[0023] After measurement, the thicknes...

Embodiment 3

[0025] The pulp of the pressure-resistant layer paper of the electrolytic capacitor paper is wood pulp, the beating degree is 40°SR, and the wet weight is 14.5g. The absorption layer paper has a two-layer structure. The beating degree of Manila hemp pulp is 36°SR, and the wet weight is 13.6g. The beating degree of Manila hemp pulp is 18°SR, and the wet weight is 27.6g. The paper pulp of each absorbing layer is made by a fourdrinier paper machine, and the paper pulp of the pressure-resistant layer is made by a cylinder paper machine.

[0026] The pulp fibers of the absorbing layer are hung on the polyester net of the fourdrinier paper machine and transferred to the felt through the transfer roller. Composite molding of pulp to form composite pulp fibers. After the composite pulp fiber is separated from the felt, it enters the drying cylinder for drying treatment. When drying, the pressure-resistant layer paper is pasted on the cylinder for drying. Manila hemp pulp is on the ou...

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Abstract

The invention relates to a paper technology, especially for electrolytic capacitor paper manufacturing method. The method includes the following steps: absorbing layer pulping; using paper pulp to manufacture paper; pressure layer pulping; using paper pulp to manufacture paper; compositing absorbing and pressure layers; the pulping degree of the absorbing layer is 12degreeSR-50degreeSR. And it adopts side wave fourdrinier paper machine to copy paper. But the pressure layer respectively is 30degreeSR-98degreeSR and cylinder paper machine. Thus the invention resolves the problem that cross direction water uptake of electrolytic capacitor paper is not very good. And the invention has the advantages of high purity, uniform paper quality, thickness, tightness, and fiber array.

Description

technical field [0001] The invention relates to a papermaking technology, in particular to a method for preparing electrolytic capacitor paper. Background technique [0002] Electrolytic capacitor paper is used between the anode and cathode of electrolytic capacitors. It can not only prevent the two poles from contacting, but also keep the electrolyte, also known as separator paper. Electrolytic capacitor paper is different from ordinary paper. Its requirements for paper are as follows: (1) high purity; (2) uniform paper quality, uniform thickness and tightness, uniform fiber arrangement, and sufficient Necessary mechanical and electrical strength; (3) Good absorbency, able to absorb enough electrolyte; (4) Good withstand voltage performance. The current electrolytic capacitor paper is mostly single-layer paper, and the variety is single, mostly made of pure wood pulp. The paper has the following problems: (1), because it is a single-layer paper, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21F5/02D21F11/04D21F11/08D21H11/00
Inventor 陈万平王白浪
Owner ZHEJIANG KAN SPECIALITIES MATERIAL
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