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Preparation method for decorative base paper

A technology for decorating base paper and base paper, which is applied in the field of papermaking. It can solve the problems of capillary channel blockage, reduce the absorbency of paper sheets, and reduce the penetration between fibers, etc., and achieve the effects of improving stability, strengthening paper sheet strength, and improving liquid absorption performance.

Inactive Publication Date: 2016-08-17
宜城成雄织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many reinforcing agents have the function of sizing at the same time, so that the capillary channels are blocked, and the penetration between fibers is greatly reduced, thereby reducing the absorbency of the paper.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of base paper

[0038] 15 parts of softwood pulp and 85 parts of hardwood pulp were beaten to 38 。 SR, mixed after refining, adding 25% titanium dioxide and 1% PAM, after the stages of netting, pressing and drying, the weight of paper is 60-90g / m 2 spare base paper;

[0039] (2) Preparation of coating

[0040] 1) Add 70 parts of titanium dioxide and 30 parts of kaolin into the dispersion tank, add 15 parts of nano-calcium carbonate microcapsules, 0.2 parts of defoamer, start stirring, and add an appropriate amount of water at the same time to adjust the pH value to 7-9, then Add dispersant and stir for 5-9min;

[0041] 2) Add 15 parts of cationic starch and 15 parts of polyvinyl alcohol into the dispersion tank and continue stirring;

[0042] 3) Add 0.5 parts of microcrystalline cellulose to the dispersion tank in step 2), and add an appropriate amount of water to adjust the solid content of the paint to 50-70%, to obtain a paint for coating.

[004...

Embodiment 2

[0046] (1) Preparation of base paper

[0047] 15 parts of softwood pulp and 85 parts of hardwood pulp were beaten to 38 。 SR, mixed after refining, adding 25% titanium dioxide and 1% PAM, after the stages of netting, pressing and drying, the weight of paper is 60-90g / m 2 spare base paper;

[0048] (2) Preparation of coating

[0049] 1) Put 80 parts of titanium dioxide and 20 parts of kaolin into the dispersion tank, add 20 parts of nano-calcium carbonate microcapsules, 1 part of defoamer, start stirring, and add an appropriate amount of water at the same time to adjust the pH value to 7-9, then Add dispersant and stir for 5-9min;

[0050] 2) Add 15 parts of cationic starch and 15 parts of polyvinyl alcohol into the dispersion tank and continue stirring;

[0051] 3) Add 1 part of microcrystalline cellulose to the dispersion tank in step 2), and add an appropriate amount of water to adjust the solid content of the coating to 50-70%, to obtain a coating for coating.

[0052]...

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Abstract

The invention relates to a preparation method for decorative base paper. The preparation method comprises the following steps: base paper preparation, coating preparation and surface coating. According to the invention, in the process of coating preparation, nanometer calcium carbonate microcapsules and microcrystalline cellulose are added, so glue liquid absorption performance of paper and strength of the paper are increased, and the disadvantage of poor absorptivity in the prior art is overcome. With a technical scheme provided by the invention, extensive application prospects are obtained.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a method for preparing decorative base paper. Background technique [0002] Due to the thick profile of solid wood decorative panels, high cost, large consumption of forest resources, and difficult control of panel patterns, wood-based panels are gradually replacing solid wood decorative panels and becoming the mainstream, which makes it possible to be used as decorative base paper for wood-based panels after processing. . [0003] As one of the special papers, the decorative base paper needs to be dipped before being used for board processing. The dipping time in the dipping tank is only a few seconds. In a short time, the specified amount of glue should be applied and the glue should be absorbed evenly. This places very high demands on the liquid absorbency of the decorative base paper. In addition, the base paper must bear the weight of itself and the absorbed glue during the dipp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/64D21H19/54D21H19/60D21H19/52D21H27/20
CPCD21H19/52D21H19/54D21H19/60D21H19/64D21H27/20
Inventor 印红霞李俊吕云
Owner 宜城成雄织造有限公司
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