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Leatheroid manufactured by papermaking sewage and cotton fibre and method thereof

A technology of papermaking sludge and manufacturing method, which is applied in the direction of pulp beating method, papermaking, papermaking machine, etc., to achieve the effects of reducing environmental pollution, wide distribution, and simple process

Inactive Publication Date: 2010-02-17
福建省晋江优兰发纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to use papermaking sludge and cotton fiber to make paper skins, save resources, turn cotton into treasure, and reduce the pollution of waste cotton fiber to the environment

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0019] A. Cotton fibers are forcibly crushed by conventional crushing methods, and screened with a vibrating sieve to obtain short fibers with a length of 0.5 to 2.5 mm;

[0020] B. Pump the papermaking sludge from the sewage treatment tank to the slurry mixing tank, let it settle for about 1 hour, and then drain the water on the surface of the sludge to obtain flocculated and precipitated papermaking sludge; then the weight ratio is 85:15 Put the papermaking sludge and short fiber into the pulping tank in turn, and perform beating and pulping, so that the two are mixed evenly, and the beating degree is 70-80°SR. 4.0%;

[0021] C. Use a slurry pump to send the aforementioned slurry to the mesh surface of the high-level box at a spray angle of 45 degrees for copying;

[0022] D. Send the finished layer of paper to the roller through the transmission system for winding, and at the same time press between the two rollers for preliminary water removal; the thickness of the paper ...

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Abstract

The invention provides leatheroid manufactured by papermaking sewage and cotton fiber and manufacturing method thereof, relating to the papermaking technical field. The used raw materials for leatheroid of the invention are papermaking sewage and cotton fiber. The manufacturing method of the leatheroid includes that: firstly size degradation is carried out on the cotton fiber; then the cotton fiber is mixed with papermaking sewage in proportion, the papermaking sewage accounts for 80-85% by weight percent and the cotton fiber accounts for 15-20% by weight percent, and beating and sizing are carried out; paper pulp is fed into a high-order net cage by a pump for manufacturing paper with pulp; laminated paper is sent onto a roller to be wound by a transmission system; the wound leatheroid ispeeled; and the leatheroid is subject to pressure polishing and cutting after mechanical dehydration. The leatheroid manufactured by the invention can be used as the cover of various books and also can be used as paper plate raw material of a packing box.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to paper skins made from papermaking sludge and cotton fibers and a manufacturing method thereof. Background technique [0002] How to solve papermaking sludge is a technical problem that has plagued the development of papermaking enterprises for a long time. Most of the papermaking sludge is treated by landfill and incineration, which not only costs a lot, but also easily causes secondary pollution. Because papermaking sludge contains a lot of toxic substances and a large number of bacteria, it will infiltrate into groundwater after landfill, pollute water sources, and waste a lot of land. In order to save costs, some paper mills even discharge untreated papermaking sludge directly into rivers and ditches, which poses a great threat to people's daily life and agricultural production safety. Therefore, for the recycling of papermaking sludge, on the one hand, it can reduce env...

Claims

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Application Information

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IPC IPC(8): D21H11/14D21H11/12D21F13/00D21B1/04D21D1/02
Inventor 甘木林
Owner 福建省晋江优兰发纸业有限公司
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