Preparation method of mildew-proof glass spacing paper

A glass spacer paper and anti-mildew technology, applied in the field of papermaking, can solve the problems of poor anti-mildew effect, etc., and achieve the effects of reducing the growth of mildew, strong hydrophobic effect, and improving the surface roughness of fibers

Active Publication Date: 2020-09-11
XIANHE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problem that the existing glass spacer paper has poor anti-mildew effect, and provides a method for preparing a mildew-proof glass spacer paper. Efficiency, when the antifungal agent in the paper is enclosed in the polymer that runs through the network, the degree of crosslinking is increased to prevent the antifungal agent from coming out as far as possible, and the antifungal agent is gradually released when the water content in the paper rises to avoid excessive antifungal agent Early release causes waste, high density, high strength and high surface smoothness

Method used

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  • Preparation method of mildew-proof glass spacing paper

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method for mildew-proof glass spacer paper, comprising the following steps:

[0038] (1) Preparation of base paper: after 55% bleached softwood pulp and 45% bleached hardwood pulp are chemically soaked for 3 hours, beating to 60 ° SR; get 58 parts by weight of bleached chemical pulp, 8 parts by weight of filler and 8 parts by weight After the cationic starch is mixed, it is filtered with clean water, dehydrated on the wire part, impregnated in the anti-mildew penetrating network polymer, pressed at 550kPa for 40min, and dried to obtain base paper;

[0039] The clear water filtration is to adopt circulating clear water to filter, and use a 5000 mesh precision cloth bag filter to filter;

[0040] The anti-mold penetrating network polymer is chitosan-polyvinyl alcohol-hexamethacrylate anti-mold polymer, and its preparation steps include: dissolving chitosan cellulose in 12% acetic acid solution by mass fraction, adding Add the antifungal agent sodium benzoat...

Embodiment 2

[0047] The difference from Example 1 is that a method for preparing an anti-mildew glass spacer paper comprises the following steps:

[0048] (1) Preparation of base paper: After soaking 50% bleached softwood pulp and 50% bleached hardwood pulp chemically for 3 hours, beat to 60 ° SR; get 50 parts by weight of bleached chemical pulp, 10 parts by weight of filler and 5 parts by weight After the cationic starch is mixed, it is filtered with clean water, dehydrated on the wire part, impregnated in the anti-mildew penetrating network polymer, pressed at 550kPa for 40min, and dried to obtain base paper;

[0049] The clear water filtration is to adopt circulating clear water to filter, and use a 5000 mesh precision cloth bag filter to filter;

[0050] The anti-mold penetrating network polymer is chitosan-polyvinyl alcohol-hexamethacrylate anti-mold polymer, and its preparation steps include: dissolving chitosan cellulose in 12% acetic acid solution by mass fraction, adding Add anti...

Embodiment 3

[0057] The difference from Example 1 is that a method for preparing an anti-mildew glass spacer paper comprises the following steps:

[0058] (1) Preparation of base paper: after 52% bleached softwood pulp and 48% bleached hardwood pulp are chemically soaked for 3 hours, beating to 60 ° SR; get 51 parts by weight of bleached chemical pulp, 9 parts by weight of filler and 6 parts by weight After the cationic starch is mixed, it is filtered with clean water, dehydrated on the wire part, impregnated in the anti-mildew penetrating network polymer, pressed at 550kPa for 40min, and dried to obtain base paper;

[0059] The clear water filtration is to adopt circulating clear water to filter, and use a 5000 mesh precision cloth bag filter to filter;

[0060] The anti-mold penetrating network polymer is chitosan-polyvinyl alcohol-hexamethacrylate anti-mold polymer, and its preparation steps include: dissolving chitosan cellulose in 12% acetic acid solution by mass fraction, adding Add...

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Abstract

The invention relates to the technical field of papermaking, and provides a preparation method of mildew-proof glass spacing paper in order to solve the problem that existing glass spacing paper is poor in mildew-proof effect. The method comprises the following steps: (1) preparing raw paper: chemically soaking bleached softwood pulp and bleached hardwood pulp, and pulping; mixing the bleached chemical pulp, a filler and cationic starch, filtering with clear water, dehydrating with a net part, soaking in a mildew-proof network polymer, squeezing and drying to obtain raw paper; and (2) coatinga hydrophobic layer: coating the surface of raw paper with the hydrophobic modified polymer, drying, and carrying out hot pressing to obtain a finished product. The glass spacing paper has better hydrophobicity and waterproofness; compared with the prior art, the anti-mildew agent in the paper is sealed in the network polymer, the cross-linking degree is improved, the anti-mildew agent is prevented from being separated as much as possible, the anti-mildew agent is gradually released only when the water content in the paper is increased, waste caused by premature release of the anti-mildew agent is avoided, and high density, high strength and high surface smoothness are achieved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for preparing mildew-proof glass spacer paper. Background technique [0002] Glass spacer paper is used as a separator between various types of glass. Glass spacer paper is used for the back-end packaging of glass products. It can also be used for glass and glass spacers after cutting or thinning the glass substrate, which is convenient for the production process. The protection of the glass substrate on the A-frame requires high surface strength, no dust, no impurities, and no lint or powder. It plays an important role in protection and isolation during the transportation of various types of glass, preventing glass mildew and protecting Glass to prevent friction or scratches between glass substrates. When the glass is transported and stored for a long time, the glass spacer paper will be mildewed due to factors such as changes in environmental humidity, which will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/00D21H17/06D21H17/14D21H17/25D21H17/26D21H17/29D21H17/34D21H17/36D21H17/37D21H17/65D21H17/66D21H17/67D21H17/68D21H19/10D21H21/36
CPCD21H11/00D21H17/29D21H21/36D21H17/25D21H17/14D21H17/36D21H17/37D21H19/10D21H17/675D21H17/65D21H17/06D21H17/34D21H17/26D21H17/68D21H17/66
Inventor 周晓光戴贤中毛学米董金雨王义兵于振中
Owner XIANHE CO LTD
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