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Process for making light-weight high-strength common gypsum board mask paper

A production process, gypsum board technology, applied in the production process field of gypsum board face paper, can solve the problems of high quantitative and low strength of gypsum board face paper, achieve good comprehensive utilization of resources, improve slurry strength, maintain The effect of fiber length

Active Publication Date: 2010-09-01
TAISHAN GYPSUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high ration and low strength of domestic gypsum board face paper, the invention provides a production process of low weight common gypsum board face paper, and the technical scheme adopted is:

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention is described in detail below in conjunction with embodiment:

[0019] The process includes three processes of material preparation, pulping and papermaking. The specific process steps are as follows:

[0020] 1. Prepare materials

[0021] The waste paper is loosely packaged, sorted, and other wastes such as plastics and cans are sorted out. American waste newspapers and domestic waste newspapers are mixed in a weight ratio of 5:5, and are transported to the deinked pulp production line in the pulping workshop through a chain plate machine Production of deinked pulp for use on gypsum board facing paper to obtain a good appearance.

[0022] American waste containerboard and domestic old containerboard are mixed according to the weight ratio of 6:4, and are continuously transported to the OCC pulp production line in the pulping workshop for the production of OCC pulp. Among them, the imported American waste paper has high strength and is suitable for...

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Abstract

The invention discloses a process for making light-weight high-strength common gypsum board mask paper, which comprises three procedures of material preparation, pulping and paper making. By adding various assistants to domestic waste newspaper and imported American waster paper based on a certain ratio and adjusting corresponding processes, the invention rationalizes the process route, realizes the reasonable matching of long and short fibers, improves the product quality, reduces the weight of the finished paper product, improves the physical strength, saves the resources, and greatly reduces the production cost of the gypsum board. The gypsum board mask paper produced by the process has the characteristics of light weight, high strength, attractive appearance and the like, and can completely substitute the imported product.

Description

technical field [0001] The invention relates to a production process of face-protecting paper for gypsum boards. Background technique [0002] In recent years, paper-faced gypsum board, a new type of environmentally friendly building material, has become the new darling of the building decoration industry due to its advantages of environmental protection, light weight, sound insulation, and heat preservation. The annual growth rate is 30%. As an important raw material for gypsum board - gypsum board face paper, the domestic demand will increase from the current 520,000 tons to about 900,000 tons. [0003] At present, there are only a few companies producing gypsum board face paper in our country, the production volume is small, and it cannot meet the growing market demand, and the products are in the ranks of middle and low grades, and there are generally high quantitative (weight up to 210g / m2, low quantitative face paper is now 180g / m2), low strength and a series of probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00
Inventor 贾同春任绪连韩玉武杨普峰刘军忠王宝勇张义波卢保阳周明
Owner TAISHAN GYPSUM CO LTD
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