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Abrasive steel paperboard and manufacturing process thereof

A production process, technology of steel cardboard, applied in the direction of paper, papermaking, special paper, etc., can solve the problems of increased brittleness of steel cardboard, affecting the steel cardboard, not enough stiffness, etc., to achieve the effect of improving toughness, reducing water absorption rate, and good water absorption

Active Publication Date: 2013-06-12
杭州特种纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moisture content affects the toughness of steel paperboard. The general moisture content of ground steel paper is 6%~10%. Due to the change of ambient humidity and temperature, the moisture content in the paper base, especially in the surface paper base, changes significantly: grinding steel paper If the moisture content is too low, the brittleness of the steel cardboard will increase and the strength will decrease, while if the moisture content is too high, the steel cardboard will become soft and not stiff enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Beating and rinsing: Mix 93.9kg of refined cotton linter fibers with 6kg of coniferous wood fibers and then perform beating treatment. The beating degree is 35°SR, the wet weight is 8g, and the beating concentration is not less than 3%. The obtained slurry is screened, purified and rinsed;

[0032] (2) Papermaking and gelatinization: The mixed pulp is made on a paper machine, and after dehydration by pressing and drying by hot pressing drying equipment, the steel paper base paper is obtained. The moisture content in the base paper is 5%, and then the obtained 6 sheets of steel paper are After the paper base paper is stacked, it is sent into the gelling tank filled with zinc chloride solution through the paper roll to be gelled to obtain raw steel cardboard;

[0033] (3) Aging and desalination: put the raw steel paperboard obtained in step (2) into the grid of the aging room for aging treatment, the aging temperature is 60°C, the time is 3h, and then the raw steel pa...

Embodiment 2

[0038] (1) Beating and rinsing: mix 94.8kg of refined cotton linter fibers with 5kg of coniferous wood fibers and then perform beating treatment. The beating degree is 36°SR, the wet weight is 7.6g, and the beating concentration is not less than 3%. The pulp obtained from beating is screened, purified and rinsed;

[0039] (2) Papermaking and gelatinization: The mixed pulp is made on a paper machine, and after dehydration by pressing and drying by hot-press drying equipment, the base paper for steel paper is obtained. The moisture content in the base paper is 6%, and then the three steel sheets obtained are After the paper base paper is stacked, it is sent into the gelling tank filled with zinc chloride solution through the paper roll to be gelled to obtain raw steel cardboard;

[0040] (3) Aging and desalination: put the raw steel cardboard obtained in step (2) into the grid of the aging room for aging treatment, the aging temperature is 70°C, the time is 2h, and then the raw ...

Embodiment 3

[0045] (1) Beating and rinsing: mix 96.8kg of refined cotton linter fibers with 3kg of coniferous wood fibers and then perform beating treatment. The beating degree is 35°SR, the wet weight is 8g, and the beating concentration is not less than 3%. The obtained slurry is screened, purified and rinsed;

[0046] (2) Papermaking and gelatinization: The mixed pulp is made on a paper machine, and after dehydration by pressing and drying by hot-press drying equipment, the base paper for steel paper is obtained. The moisture content in the base paper is 4%, and then the four steel sheets obtained are After the paper base paper is stacked, it is sent into the gelling tank filled with zinc chloride solution through the paper roll to be gelled to obtain raw steel cardboard;

[0047] (3) Aging and desalination: put the raw steel paperboard obtained in step (2) into the grid of the aging room for aging treatment, the aging temperature is 65°C, and the time is 2.5h, and then the raw steel p...

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PUM

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Abstract

The invention discloses an abrasive steel paperboard. The abrasive steel paperboard is prepared from the following materials in percentage by weight: 93.8%-96.8% of cotton fiber, 3%-6% of wood fiber and 0.1%-0.2% of styrene-acrylic emulsion. The manufacturing process of the abrasive steel paperboard comprises the following steps of: (1), pulping and rinsing; (2), making paper and gelling; (3), aging and desalinizing; (4), washing and gluing; (5), pre-drying and drying; and (6), carrying out press polishing and packaging. Relative to the pure-cotton fiber abrasive steel paperboard, the volume resistance of the abrasive steel paperboard disclosed by the invention is increased by 30%, the electric strength of the abrasive steel paperboard is increased by 12%, the longitudinal drying shrinkage and the transverse drying shrinkage are reduced by 6% and 15%, respectively; and compared with the water adsorption of the un-glued abrasive steel paperboard, the water adsorption of the abrasive steel paperboard provided by the invention is reduced by 14%.

Description

technical field [0001] The invention relates to a grinding steel cardboard and a manufacturing process thereof. Background technique [0002] Grinding steel cardboard requires higher strength, less deformation and better toughness than ordinary steel cardboard. Generally, the base paper fiber of steel paper is relatively short, and the abrasive steel paper made of it has relatively large deformation. Moisture content affects the toughness of steel paperboard. The general moisture content of ground steel paper is 6%~10%. Due to the change of environmental humidity and temperature, the moisture content in the paper base, especially the moisture content in the surface paper base, changes significantly: grinding steel paper If the moisture content is too low, the brittleness of the steel cardboard will increase and the strength will decrease, while if the moisture content is too high, the steel cardboard will become soft and not stiff enough. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H17/66
Inventor 吴安波
Owner 杭州特种纸业有限公司
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