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Production process of low-ration high-strength waterproof plaster board mask paper

A production process and technology of gypsum board, applied in paper/cardboard layered products, paper, papermaking, etc., can solve the problems of low strength and high quantification of gypsum board cover paper, improve the strength of the slurry, and improve the comprehensive utilization of resources. , The effect of improving the appearance of the product

Active Publication Date: 2010-09-08
TAISHAN GYPSUM CO LTD
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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-protecting paper, the invention provides a production process of low-quantity waterproof gypsum board face-protecting paper, and the technical scheme adopted is:

Method used

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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 production process of low-ration high-strength waterproof plaster board mask paper, comprises the three steps of material preparation, pulp production and paper making. National waste newspaper, imported American wastepaper and various addictives are added according to a certain ratio and can be adjusted by corresponding processes, so that the invention has reasonable process path, realizes reasonable matching of long and short fibers, improves the quality of products, reduces the paper ratio of finished products, improves the physical strength, also saves resources, and greatly reduces the production cost of a plaster board. The plaster board mask paper produced by using the process has the characteristics of low ratio, high strength, favorable fireproof performance, attractiveness and the like and can completely replace imported products.

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): D21C5/02D21C9/00D21D1/00D21H17/67D21F11/00D21H21/16D21H27/30B32B29/00
CPCY02W30/64
Inventor 任绪连韩玉武杨普峰刘军忠赵秀云王宝勇张义波卢保阳周明
Owner TAISHAN GYPSUM CO LTD
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