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Wet strength copper clad laminate base paper and preparation process

A technology of copper clad laminate and preparation process, which is applied in the field of papermaking, can solve the problems that the base paper cannot meet the requirements, and achieve the effect of increased strength and good water resistance

Inactive Publication Date: 2010-10-20
宝鸡科达特种纸业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the subsequent process of copper-clad laminates, the existing base paper cannot meet the requirements of adding a flame retardant after passing through a water-soluble resin once.

Method used

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Examples

Experimental program
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Embodiment Construction

[0008] The base paper for wet-strength copper clad board is made of eucalyptus wood pulp and 0.18%-0.32% of the total weight of the wet-strength agent is added to the papermaking wood pulp. The wet strength agent is polyamide epidose water agent with a concentration of 12.5±1%, and the addition amount is 1.5%-2.5% of paper pulp. The preparation process of the wet-strength type bleached wood pulp copper-clad base paper is characterized in that a wet-strength agent is added to the head box of the paper machine with a metering pump.

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Abstract

The invention aims to provide wet strength copper clad laminate base paper to meet the requiremetn of a subsequent process for flame retardance. The wet strength bleached wood pulp copper clad laminate base paper is prepared by using eucalyptus wood pulp as papermaking wood pulp and adding a wet strength agent which is 0.18 to 0.32 percent of the total weight of the eucalyptus wood pulp. A preparation process of the wet strength bleached wood pulp copper clad laminate base paper is characterized in that the wet strength agent is added into a head box of a paper machine by a measuring pump. The invention has the advantage that by selection of the paper pulp and addition of the wet strength agent, the base paper has excellent water resistance and the strength is greatly improved so as to meet the requirement in the treatment process of the subsequent process.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to the manufacture of copper-clad board paper for the electronic industry. Background technique [0002] Copper-clad laminate base paper is the base material used by the electronics industry to make composite and high-grade paper-based copper-clad laminates. In the past, there was no flame retardant requirement for this kind of paper. With the continuous improvement of people's living standards and the development of the information industry, especially the aviation and aerospace industries, higher requirements are put forward for the basic material of the electronics industry, copper clad laminates, especially the flame retardancy is an important indicator. Therefore, in the subsequent process of copper clad laminates, the existing base paper cannot meet the requirements for adding a flame retardant after passing through a water-soluble resin. Contents of the invention [0...

Claims

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Application Information

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IPC IPC(8): D21H21/20D21H19/04
Inventor 侯宗科刘占发
Owner 宝鸡科达特种纸业有限责任公司
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