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A papermaking process of ultra-low weight tissue paper

A tissue paper, ultra-low technology, used in papermaking, papermaking, textiles and papermaking, etc., can solve the problems of loss of paper strength, waste of pulp and energy consumption, paper web breakage, etc., to reduce paper breakage downtime. The number of times, improve the operating efficiency, the effect of reducing the paper break rate

Active Publication Date: 2017-10-03
SHANDONG SUN HOUSEHOLD PAPER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the relatively low basis weight of ultra-low basis weight household paper, when it is wrinkled, the strength of the paper will lose a lot, and it is easy to cause paper breakage
The paper is generally broken from both sides, which leads to the break of the whole paper web, and a lot of pulp and energy consumption will be wasted during threading, which will reduce the operating efficiency of the paper machine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0027] To produce 11g ultra-thin facial paper, the basis weight of this paper is controlled at 10.5-11.5g, and the pulping uses 20±2% long fiber and 80±2% short fiber. The angle of the scraper is selected to be 15°, the weight of paper on both sides is increased by 0.5g in the transverse direction of the paper machine, the width is 0.5CM, the speed of the drying cylinder is 1750m / min, and the pressure of the drying cylinder is 3.5-5.5bar. Wrinkle rate ≥ 17%. Squeeze pressure 90Kn / m. Solens soft coating (solens cylinder sticking agent 9600 or 3718) is used as the coating, and the ratio of the cylinder sticking agent to the stripping agent is 4:3 by weight. In this production, the paper breakage was reduced by 20%, and the thickness of the second layer was only within 110 μm, which met the customer's ultra-thin and picky requirements.

Embodiment 2

[0029] For 12g face paper, the basis weight of the paper is controlled at 12.0±0.5, and the pulping uses 20±2% of long fibers and 80±2% of short fibers. The scraper is selected at 12°, and the paper edge on both sides of the weight is increased by 0.5g in the transverse direction of the paper machine, the width is 2CM, the speed of the drying cylinder is 1750m / min, and the pressure of the drying cylinder is 3.5-5.5bar. Wrinkle rate ≥ 17%. Squeeze pressure 90Kn / m. Buckman soft coating (Buckman sticking agent 2620) is used as the coating, and the ratio of sticking agent to stripping agent is 6:3 by weight. In this production, the paper breakage was reduced by 20%, and the thickness of the second layer was only within 125 μm, which met the customer's critical requirements.

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Abstract

The invention discloses paper making technology of ultra lightweight tissue paper.The paper making technology of ultra lightweight tissue paper comprises following steps: pulp scattering, de-slagging, pulp refining, dilution, screening, netting and forming, squeeze dehydration, drying, wrinkling and primary rolling. A drying cylinder coating is adopted for softening, adjusting and wrinkling the scraper angle. During the paper making process, the frequency of shutdown due to paper-breaking is decreased by adding measures such as increase in paper weight in a transverse direction of a paper machine so that operation efficiency of the paper machine is increased.

Description

technical field [0001] The invention relates to the technical field of papermaking technology for household paper, in particular to a papermaking technology for ultra-low weight tissue paper. Background technique [0002] Due to the relatively low basis weight of ultra-low basis weight household paper, when it is wrinkled, the strength of the paper will lose a lot, and it is easy to cause paper breakage. The paper is generally broken from both sides, resulting in the break of the entire paper web, a lot of pulp and energy consumption will be wasted during threading, and the operating efficiency of the paper machine will be reduced. Contents of the invention [0003] The object of the present invention is to provide a kind of ultra-low weight tissue papermaking process for the above-mentioned defects, including loose pulp, slag removal, pulp refining, pulp blending, dilution, screening, online forming, dehydration pressing, drying, Wrinkling, initial roll, using measures s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/00
Inventor 魏代龙亚历克斯杨晓静
Owner SHANDONG SUN HOUSEHOLD PAPER LTD
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