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Body paper of wettable tissues and production process of body paper

A production process and toilet paper technology, which is applied in the field of papermaking, can solve the problems of decreased water filtration speed in the net part, unfavorable paper strength, and reduced copying speed, etc.

Inactive Publication Date: 2016-05-11
CHONGQING LONGJING PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, long-fiber pulp must be beaten to give toilet paper sufficient strength. For some manufacturers, especially those who use waste paper as raw materials, it is not advisable to increase the beating degree to make up for or increase the strength. , because with the increase of beating degree, on the one hand, the energy consumption increases, on the other hand, the water filtration speed of the wire part decreases, the machine speed decreases, the steam consumption increases, and it is also unfavorable to the paper strength

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

[0020] A kind of wet toilet paper base paper and its production process:

[0021] a. Material selection and preparation: long-fiber wood pulp is selected from imported bleached coniferous wood pulp of Russia Wuzhen brand, short-fiber wood pulp is selected from Yunnan Yunjing brand eucalyptus pulp and Brazil Goldfish brand imported bleached eucalyptus pulp, among which Yunnan Yunjing brand eucalyptus pulp The weight ratio of wood pulp to Goldfish brand imported bleached eucalyptus pulp is 1:4. Prepare 250kg of long-fiber wood pulp, 425kg of short-fiber wood pulp, 0.4kg of caustic soda, 0.4L of beating enzyme and 3L of softener.

[0022] b. Crushing: Dilute the beating enzyme and water at a ratio of 1:7, and then divide it into two parts. The two parts of beating enzyme are mixed with long-fiber wood pulp and short-fiber wood pulp respectively, and put into two hydropulpers respectively. broken.

[0023] c. Refining: long-fiber wood pulp is crushed and desanded, then sent to a ...

Embodiment 2

[0026] A kind of wet toilet paper base paper and its production process:

[0027] a. Material selection and preparation: Long-fiber wood pulp is selected from Chilean Silver Star brand imported bleached coniferous wood pulp, and short-fiber wood pulp is selected from small-leaf acacia wood pulp. Prepare 250kg of long-fiber wood pulp, 430kg of short-fiber wood pulp, and 0.45kg of Caustic soda, 0.45L of beating enzyme and 2.8L of softener.

[0028] b. Crushing: Dilute the beating enzyme and water at a ratio of 1:7, and then divide it into two parts. The two parts of beating enzyme are mixed with long-fiber wood pulp and short-fiber wood pulp respectively, and put into two hydropulpers respectively. broken;

[0029] c. Refining: long-fiber wood pulp is crushed and desanded, then sent to a disc refiner, and then put into caustic soda and softener for refining, wherein the refining concentration is 4.5%, and the degree of knocking is 21-22°SR; Refining flow is 45m 3 / h, the resi...

Embodiment 3

[0032] A kind of wet toilet paper base paper and its production process:

[0033] a. Material selection and preparation: long-fiber wood pulp is selected from imported bleached coniferous wood pulp of Russia Wuzhen brand, and short-fiber wood pulp is selected from small-leaf hard impurities. Prepare 240kg of long-fiber wood pulp, 450kg of short-fiber wood pulp, 0.45kg of caustic soda, 0.4L of beating enzyme and 3L of softener.

[0034] b. Crushing: Dilute the beating enzyme and water at a ratio of 1:7, and then divide it into two parts. The two parts of beating enzyme are mixed with long-fiber wood pulp and short-fiber wood pulp respectively, and put into two hydropulpers respectively. broken.

[0035] c. Refining: long-fiber wood pulp is crushed and desanded, then sent to a disc refiner, and then put into caustic soda and softener for refining, wherein the refining concentration is 4.5%, and the degree of knocking is 21-22°SR; Refining flow is 45m 3 / h, the resin control a...

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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PUM

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Abstract

The invention discloses body paper of wettable tissues. The body paper is prepared from the following raw materials: 240-250 parts by weight of long fiber wood pulp, 400-450 parts by weight of short fiber wood pulp, caustic soda, pulping enzyme and a softener. A production process of the body paper comprises the following steps: a, selecting and preparing the materials; b, crushing, namely separately crushing the long fiber wood pulp and the short fiber wood pulp; c, grinding, namely degritting the crushed long fiber wood pulp, sending the wood pulp to a mill grinder, and adding the caustic soda and the softener for pulping; and d, papermaking from pulp, namely mixing the crushed short fiber wood pulp with the ground long fiber wood pulp for papremaking, thereby obtaining the finished body paper. According to the invention, long and short fibers in the raw materials are mixed for pulping in a reasonable ratio, and the short fibers are separately ground, so that the advantages of existing mixed grinding is kept while the problem of dehydration caused by overhigh beating degree is solved, the thickness of paper is increased, loss of fibers is lowered, and the tissues manufactured from the body paper are high in strength and good in softness and can be taken as wet tissues after wetted.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a base paper for wet toilet paper and a production process thereof. Background technique [0002] Appropriate long-fiber and short-fiber ratio is the premise of copying soft toilet paper. Long-fiber pulp can give toilet paper sufficient strength, while short-fiber pulp has a greater impact on hand feel, especially softness. Therefore, in order to produce high-grade toilet paper with better strength and softness, the ratio of long and short fibers must be well matched. At present, the raw materials of domestic toilet paper: long fibers mainly include imported bleached softwood pulp or domestic cotton pulp, short fibers include imported or domestic bleached hardwood pulp, and imported mixed waste paper or white paper edge and deinking waste from domestic printing plants pulp. [0003] A good beating process is the guarantee for the production of soft toilet paper....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21D1/30
CPCD21H15/10D21D1/30
Inventor 何廷龙张云李兴奎祝磊雷明勇
Owner CHONGQING LONGJING PAPER CO LTD
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