Method for producing paper-pulp by using cotton stalk core or kendir stalk core

A kind of technology of apocynum and cotton stalks, which is applied in the direction of pulp beating/refining method, pulp dehydration, washing/replacing pulp treatment liquid, etc., which can solve the problems of great difference in plant fiber composition and only 40-47% of pulp prepared , achieve good social and ecological benefits, and improve softness

Inactive Publication Date: 2009-07-29
凌受明 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cellulose content of reed is only 41.57%, while the miscellaneous cell content is as high as 35%, and the content of polypentose is more than 25%, so the physical strength of the finished paper made from reed pulp is low
The quality of wood pulp paper is good, but due to the need to prohibit deforestation of trees to protect the ecological environment, wood paper production is limited by raw materials
On the other hand, the commonly used chemical pulping method and mechanical pulping method also have disadvantages: the disadvantage of chemical pulping i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]The invention discloses a method for producing paper pulp by using cotton stalk cores or apocynum stalk cores. The cotton stalk cores separated from skin cores are used as raw materials and produced by a biological fermentation method, which includes a fermentation softening step and a pulping step. Collect the broken cotton stalks that have been crushed, interrupted, separated, and dropped by the cotton stalk sheath core separator, and blow off dust and residual cotton stalk husks by winnowing to obtain cotton stalks with a purity rate of >93%. Place the cotton stalk core after winnowing in the softening fermentation tank, and prepare the catalytic decomposition agent with urea, composite biological enzyme and water in a ratio of 5:5:1000. The composite biological enzyme includes laccase and ligninase, which can be purchased from the market. The temperature of the compound biological enzyme water is 20° C. to 30° C., and then it is poured into a pond, and the top of the ...

Embodiment 2

[0044] The invention discloses a method for producing paper pulp by using cotton stalk cores or apocynum stalk cores. The cotton stalk cores separated from skin cores are used as raw materials and produced by a biological fermentation method, which includes a fermentation softening step and a pulping step. Collect the broken cotton stalks that have been crushed, interrupted, separated, and dropped by the cotton stalk sheath core separator, and blow off dust and residual cotton stalk husks by winnowing to obtain cotton stalks with a purity rate of >93%. Place the cotton stalk core after winnowing in the softening fermentation tank, and prepare a catalytic decomposition agent with urea, compound biological enzyme and water in a ratio of 15:15:1000. The compound biological enzyme includes laccase and ligninase, which can be purchased from the market. The temperature of the water is 20°C to 50°C, then it is poured into the pool, the top of the pool is covered with a plastic cloth a...

Embodiment 3

[0046] A method for producing pulp by adopting cotton stalk cores or apocynum stalk cores, which uses the broken apocynum stalk cores separated from the cortex as raw materials, and is produced by a biological fermentation method, which includes a fermentation softening step and a pulping step . Collect the crushed apocynum stalk cores that have been crushed, interrupted, separated, and dropped by the cotton stalk husk and core separator, and blow off dust and residual apocynum husks by winnowing to obtain a purity rate of apocynum stalks > 93%. The Apocynum stalk core after winnowing is placed in the softening fermentation tank, and urea and compound biological enzyme, water are formulated into catalytic decomposition agent according to the ratio of 5:5:1000, and compound biological enzyme includes laccase and lignin enzyme, can buy from the market Bought, the temperature of water is 20 ℃~50 ℃, pours in the pond then, and the top of the pond is covered with plastic cloth and ...

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PUM

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Abstract

The invention relates to a method for using a cotton stalk core or a bluish dogbane stalk core for the production of paper pulp. The invention uses a bio-fermentation method for the production by taking the cotton stalk core or the bluish dogbane stalk core subjected to separation of peel and core as raw materials. The production of the bio-fermentation method comprises a fermentation softening step and a pulping step. The fermentation softening step comprises: immersing the cotton stalk core or the bluish dogbane stalk core in the solution of a catalytic decomposition agent that is composite bio-enzyme comprising laccase and lignin enzyme. The invention has the beneficial effects that: the invention can directly immerse the crushed stalk cores, which are separated by a cotton stalk peel-core separating machine, in the solution of the catalytic decomposition agent to degrade lignin and soften fibers, without setting the procedures of crushing the raw materials. Cellulose and hemicellulose in the resultant product of the invention are retained to a maximum extent, pulping by employing the invention is pollution-free, the unscreened yield is 75-85%; the produced paper is not liable to brightness reversion. The invention is replaceable for wood pulp papermaking and is favorable for the protection of ecological environment.

Description

technical field [0001] The invention relates to a production method of paper pulp, in particular to a method for producing paper pulp by adopting cotton stalk core or apocynum stalk core. Background technique [0002] At present, pulp generally uses plant fibers such as wood or reed as raw materials, and adopts chemical pulping or mechanical pulping. Chemical pulping uses the reaction of chemical liquid and plant fiber raw materials at high temperature to make the intercellular layer of plant fibers Lignin is dissolved as much as possible, so that the plant fiber raw material is decomposed into pulp. Its main purpose is to remove lignin, and the higher the lignin content in the raw material, the more difficult it is to make pulp. The cellulose content of reed is only 41.57%, while the content of miscellaneous cells is as high as 35%, and the content of polypentose is more than 25%. Therefore, the physical strength of the finished paper obtained from reed pulp made from reed...

Claims

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Application Information

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IPC IPC(8): D21C3/22C12S3/08D21H11/12D21B1/12D21D1/20D21C9/06D21C9/18D21C11/00
Inventor 凌受明陈长城姜景文
Owner 凌受明
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