Production process of high-white-degree plasterboard surface protection paper

A production process, gypsum board technology, applied in papermaking, papermaking machines, processing waste paper, etc., to achieve the effects of reducing pollution, large profits, and reducing pollution load

Active Publication Date: 2017-05-10
山西强伟纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of improving the whiteness of gypsum board face paper, the present invention provides a production process for high whiteness gypsum board face paper

Method used

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  • Production process of high-white-degree plasterboard surface protection paper

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of production technology of high-whiteness gypsum board face-protecting paper, concrete technical scheme is as follows:

[0020] (1) pulping

[0021] Pulping is divided into two production lines: deinked pulp and OCC production line. The process parameters of the deinking pulp production line are: the ratio of raw materials is 30% of 9# American waste + 20% of national newspaper + 50% of edge paper, and then they are evenly mixed and added to the drum pulper, and deinking chemicals are added: deinking agent 0.8kg / ton of waste paper, hydrogen peroxide 25kg / ton of waste paper, sodium hydroxide 20kg / ton of waste paper, sodium silicate 10kg / ton of waste paper, in the pulper, waste paper reacts with chemicals and beats to form a weight concentration of 4% thick slurry, remove heavy impurities in the slurry, such as iron nails, stones, glass, etc., through the high-concentration slag remover, beat it to the slurry storage tank, dilute it to a concentrati...

Embodiment 2

[0040] Embodiment 2, a kind of production technology of high-whiteness gypsum board face-protecting paper, concrete technical scheme is as follows:

[0041] (1) pulping

[0042] Pulping is divided into two production lines: deinked pulp and OCC production line.

[0043] The process parameters of the deinking pulp production line are as follows: the ratio of raw materials is 25% of 9# American waste + 15% of national newspaper + 60% of edge paper, and then it is added to the drum pulper after being evenly mixed, and deinking chemicals are added: deinking agent 0.7kg / ton of waste paper, hydrogen peroxide 20kg / ton of waste paper, sodium hydroxide 15kg / ton of waste paper, sodium silicate 8kg / ton of waste paper.

[0044] In the pulper, the waste paper reacts with chemicals and beats to form a thick pulp with a weight concentration of 4%. The heavy impurities in the pulp, such as iron nails, stones, glass, etc., are removed by a high-concentration slag remover, and the pulp Go to ...

Embodiment 3

[0050] Embodiment 3, a kind of production technology of high-whiteness gypsum board face-protecting paper, concrete technical scheme is as follows:

[0051] (1) pulping

[0052] Pulping is divided into two production lines: deinked pulp and OCC production line.

[0053] The process parameters of the deinking pulp production line are as follows: the ratio of raw materials is 35% of 9# American waste + 25% of national newspaper + 40% of edge paper, and then it is added to the drum pulper after being evenly mixed, and deinking chemicals are added: deinking agent 0.9kg / ton of waste paper, hydrogen peroxide 30kg / ton of waste paper, sodium hydroxide 25kg / ton of waste paper, sodium silicate 12kg / ton of waste paper, in the pulper, the waste paper reacts with chemicals and beats to form a weight concentration of 4% thick slurry, remove heavy impurities in the slurry, such as iron nails, stones, glass, etc., through the high-concentration slag remover, beat it to the slurry storage tan...

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Abstract

The invention relates to a gypsum board surface protection paper preparation technology, in particular to a production process of high-white-degree plasterboard surface protection paper. The effect of improving the white degree of the gypsum board surface protection paper is achieved. The process comprises the steps of (1) pulp preparation: two production lines including a deinked pulp production line and an OCC production line which are respectively used for producing deinked pulp and OCC are used for pulp preparation; (2) paper making: the high-white-degree plasterboard surface protection paper is formed by compounding four layers of nets; (3) forming: the four layers of pulp are sprayed onto the four-layer forming net through a pulp flowing box; vacuum squeezing, pre-baking, surface gluing, post-baking and coiling are performed; and final recoiling is performed through a recoiling machine to form a paper roll. The product obtained by the process provided by the invention can reach high white degree, and the quality of the product is improved.

Description

technical field [0001] The invention relates to a technology for preparing face-protecting paper for gypsum boards, in particular to a production process for face-protecting paper for gypsum boards with high whiteness. Background technique [0002] Paper-faced gypsum board is a new type of ceiling decoration material that is widely used at present. It has the advantages of light weight, fire prevention, shock resistance, thermal insulation, and good processing performance. It is also convenient for construction, good in disassembly and assembly, and good in decoration. The usable area of ​​the building can be increased. As the construction industry continues to grow and people demand rich decorative styles, the demand for plasterboard is also increasing. [0003] At present, there are not many manufacturers of gypsum board face paper, and the whiteness of the products is generally low, about 42%. With the continuous increase of market demand, people have higher and higher r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/14D21B1/32D21C5/02D21D5/02D21F11/00
CPCD21B1/32D21B1/325D21C5/027D21D5/02D21F11/00D21H11/14Y02W30/64
Inventor 贾子云
Owner 山西强伟纸业有限公司
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