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Biological enzyme degumming method for cotton stalk bark fibre

A degumming method and technology of cotton stalk sheath, which is applied in the field of biological enzyme degumming of cotton stalk sheath fiber, can solve the problems of poor spinnability of cotton stalk sheath fiber, long degumming time, and large fiber damage, so as to improve textile performance and reduce emissions and treatment capacity, damage reduction effect

Inactive Publication Date: 2008-07-09
刘俊巧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, along with the increase of natural fiber consumption and the shortage of resource, the application of cotton stalk has also been carried out relevant research, as utilizes the cotton stalk that peels off to process pulp for papermaking, again as Chinese patent application CN200510034201.4 (publication number CN1699642A, published on November 23, 2005) discloses a "cotton stalk fiber and its processing method", which uses cotton stalk to manufacture textile fibers, and provides a new technical solution for the development and utilization of cotton stalk , but in the technical solution of this patent application, the degumming method still adopts the traditional acid and alkali chemical degumming, which has a long degumming time, acid and alkali degumming will cause great damage to the fiber, and the processed cotton stalk fiber has relatively low spinnability. Poor, and degummed wastewater will cause serious environmental pollution

Method used

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  • Biological enzyme degumming method for cotton stalk bark fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Skin removal: take the dry fine-staple cotton stalk, and separate the cotton stalk skin from the cotton stalk by hand, and try to avoid bringing the hard wood fiber layer in the cotton stalk.

[0015] (2) Acid enzyme solution treatment: put the cotton stalk bark into the acid enzyme solution with a temperature of 50°C and a pH of 5.0 at a bath ratio of 1:3 for 8 hours; the enzyme concentration in the acid enzyme solution is 1%, and the acidity of the enzyme solution Available oxalic acid, glacial acetic acid or sulfuric acid are regulated, and the biological enzyme that enzyme liquid is used is acid pectinase and cellulase, and the weight ratio of acid pectinase and cellulase is 2: 1; Both pectinase and cellulase are commercially available from Ningxia Fengda Gloria Biological Products Co., Ltd.

[0016] (3) Alkaline enzyme solution treatment: put the cotton stalk skin treated by acid enzyme solution into the alkaline enzyme solution with a temperature of 55°C and p...

Embodiment 2

[0019] (1) Skin removal: take the dry coarse cotton stalk, and separate the cotton stalk skin from the cotton stalk by hand, and try to avoid bringing the hard wood fiber layer in the cotton stalk.

[0020] (2) Acidic enzyme solution treatment: put the cotton stalk bark into the acidic enzyme solution with a temperature of 50° C. and a pH of 5.0 at a bath ratio of 1:4 for 2 hours; the enzyme concentration in the acidic enzyme solution is 1.5%, and the acidity of the enzyme solution It can be regulated by oxalic acid, glacial acetic acid or sulfuric acid, and the biological enzymes used in the enzyme solution are acid pectinase and cellulase, and the weight ratio of acid pectinase and cellulase is 2:1.

[0021] (3) Alkaline enzyme solution treatment: put the cotton stalk bark treated with acid enzyme solution into the alkaline enzyme solution with a temperature of 55°C and pH 9.0 at a bath ratio of 1:3 for 2 hours. The degumming can be completed when the enzyme concentration is...

Embodiment 3

[0024] (1) Skin removal: take the dry long-staple cotton stalk, and separate the cotton stalk skin from the cotton stalk by hand, and try to avoid bringing the hard wood fiber layer in the cotton stalk.

[0025] (2) Acidic enzyme solution treatment: put the cotton bark into the acidic enzyme solution with a temperature of 50°C and a pH of 5.0 at a bath ratio of 1:5 for 4 hours; the enzyme concentration in the acidic enzyme solution is 1%, and the acidity of the enzyme solution It can be regulated by oxalic acid, glacial acetic acid or sulfuric acid, and the biological enzymes used in the enzyme solution are acid pectinase and cellulase, and the weight ratio of acid pectinase and cellulase is 2:1.

[0026] (3) Alkaline enzyme solution treatment: put the cotton stalk skin treated by acid enzyme solution into the alkaline enzyme solution with a temperature of 55°C and pH 9.0 at a bath ratio of 1:5 for 1 hour. The degumming can be completed when the enzyme concentration is 0.5%. ...

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Abstract

The invention discloses a method for bio-enzymatic degumming of cotton stalk bark fiber, which belongs to the technical field of natural plant fiber degumming. The main points of the technical proposal comprises following steps: first peeling cotton stalk bark from cotton stalks, second, putting the cotton stalk bark in acidic enzyme liquid whose PH value is 4-6.0 under the temperature of 20-60 DEG C to process for 1-8 hours, third, putting the cotton stalk bark in acidic enzyme liquid whose PH value is 7-10.0 under the temperature of 30-70 DEG C to process for 1-6 hours, and finishing degumming process. The invention adopts bio-enzymatic degumming, which can not only reduce the damage of fiber in the process of chemical degumming, the loss of the fiber reduces over 10 %, simultaneously, the invention can increase weaving performance of the fiber, and enzyme liquid can be used repeatedly, discharging and handling capacity of waste water are reduced, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to a natural plant fiber degumming technology, more specifically, it relates to a biological enzyme degumming method for cotton stalk fiber. Background technique [0002] Cotton has a large planting area in my country. Cotton fiber is also the main natural textile raw material. The application of cotton has been relatively perfect, that is, long cotton fiber is used as textile raw material, and cotton linter is the main raw material for viscose fiber production. And, along with the increase of natural fiber consumption and the shortage of resource, the application of cotton stalk has also been carried out relevant research, as utilizes the cotton stalk that peels off to process pulp for papermaking, again as Chinese patent application CN200510034201.4 (publication number CN1699642A, published on November 23, 2005) discloses a "cotton stalk fiber and its processing method", which uses cotton stalk to manufacture textile fibers, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00D06M16/00C12S3/04
Inventor 刘俊巧
Owner 刘俊巧
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