Textured base paper dipping production technology

A production process, textured technology, applied in the direction of paper, papermaking, textiles and papermaking, etc., to achieve the effect of good softness and extensibility, high strength, and good bonding strength

Inactive Publication Date: 2015-04-08
NANTONG SITONG FORESTRY MACHINE MFG INSTALLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process does not mention the application of PVA in the production of impregnated paper base paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Wood pulp ratio: Beimu 50% + Golden Lion 50%. This ratio is used to decompose the wood pulp through the pulping equipment (hydraulic pulper). The beating degree is 40°SR, the wet weight is 6g, and the beating concentration is 3.5%. The prepared pulp is pumped into the pulping tank for pulping.

[0025] The mixing steps are specifically:

[0026] (1) Add water to polyvinyl alcohol (PVA) powder and fully swell the PVA.

[0027] The swelling temperature of the PVA powder is 30-50° C., and the particle diameter is 0.001-0.20 mm. In this step, PVA powder and water can be mixed into a solution, wherein the mass percent concentration of PVA in the solution is 0.5% to 1.0%, and the temperature of the solution is controlled at 45 to 50°C and kept stirring, and the stirring time is 0.5 to 5 hours .

[0028] (2) Add the fully swollen PVA to the slurry.

[0029] Specifically, this step can be the section of PVA in the pulp line process from the loose pulp to the head box (sludg...

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PUM

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Abstract

The invention relates to a textured base paper dipping production technology including paper making and dipping processing parts, the paper making part comprises wood pulp defibering, grinding, pulp mixing, purification, screening, forming on a net, squeezing and wrinkling, drying, coiling and cutting, the pulp mixing step is as follows: adding water into polyvinyl alcohol powder for fully wetting and swelling the polyvinyl alcohol, and adding the wetted and swollen polyvinyl alcohol into ground pulp, wherein the absolute dry mass of the added polyvinyl alcohol is 0.1% to 3% of the absolute dry mass of pulp fiber; in the drying step, at least one section of a drying cylinder is used for drying a wet paper web to obtain a paper sheet, and the temperature of the initial section of the drying cylinder is set at 58 to 60 DEG C. The PVA powder is wetted and swollen, then the wetted and swollen polyvinyl alcohol powder is added into the pulp, and the wetted and swollen PVA (polyvinyl alcohol) can effectively be self trapped in gaps of paper fiber network structures.

Description

technical field [0001] The invention relates to a production process of impregnated textured base paper. Background technique [0002] Masking paper is a high-tech decoration and spraying paper (also known as color-separation tape paper because of its special properties), which is widely used in interior decoration, spraying of household appliances and spraying of high-end luxury cars. Its color separation effect is clear and clear, and it also has arc art effect, which has brought a new technological revolution to the decoration and spraying industry, and made the industry glow with new vitality. At present, the masking paper and impregnated masking paper produced by various manufacturers still have many deficiencies, mainly reflected in the high thickness, poor flexibility and strength, and good flexibility and strength, low thickness, which cannot meet the needs of the market. Thickness requirements. [0003] The strength of general paper mainly covers the intrinsic bon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/36D21H21/20D21H21/14
Inventor 陆新明王建清李金炎朱玲
Owner NANTONG SITONG FORESTRY MACHINE MFG INSTALLATION
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