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Biological enzyme scouring and bleaching agent and scouring and bleaching method for scouring and bleaching roving

A bio-enzyme and bleaching technology, applied in the field of roving bleaching with bio-enzyme bleaching agent and supercritical carbon dioxide as the medium, can solve the problems of high pollution and high energy consumption, and achieve the effect of important theoretical significance and application value

Inactive Publication Date: 2017-05-31
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole process of the scouring and bleaching method has no pollution and zero discharge, which solves the problems of high pollution and high energy consumption in the roving scouring and bleaching process

Method used

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  • Biological enzyme scouring and bleaching agent and scouring and bleaching method for scouring and bleaching roving

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for scouring and bleaching of rovings, the method uses a biological enzyme decoction and bleaching agent as a decoction and bleaching agent, uses supercritical carbon dioxide as a medium, and adopts a supercritical carbon dioxide decoction and bleaching device for decoction and bleaching. The device is as follows: figure 1 .

[0045] Such as figure 1 The shown supercritical carbon dioxide bleaching device, including CO 2 Storage tanks, bleaching tanks, co-solvent tanks, separation tanks, liquid transfer pumps, ultrasonic atomizers, CO 2 Booster pump, heater, magnetic circulation pump.

[0046] The connection relationship and the working principle when using the device to boil and bleach are: CO 2 in CO 2 In the storage tank, the flax roving is placed in the bleaching kettle, and the biological enzyme bleaching agent is placed in the co-solvent tank. During the blanching process, the refrigeration system is first turned on, and the liquid CO 2 in CO 2 The...

Embodiment 2

[0054] A method for bleaching and bleaching roving by using a supercritical carbon dioxide bioenzyme bleaching agent, adopting such as figure 1 The shown supercritical carbon dioxide decoction bleaching device, the method comprises the steps:

[0055] (1) Preparation of biological enzyme bleaching agent: the biological enzyme solution of Cellulomonas, Trichoderma reesei, Bacillus cereus, Pseudomonas fluorescens and Aspergillus niger ASP-12 obtained by the above method according to the volume ratio of 1 : 1:2:2:3 mix, stir evenly, set aside;

[0056] (2) 10kg flax roving bobbins are put into the bleaching kettle, and the biological enzyme bleaching agent is put into the co-solvent tank;

[0057] (3) Turn on the refrigeration system, liquid CO 2 from CO 2 The outflow from the storage tank flows into the ultrasonic atomizer; open the co-solvent tank, under the action of the liquid delivery pump, the biological enzyme bleaching agent enters the ultrasonic atomizer through the c...

Embodiment 3

[0061] A method for bleaching and bleaching roving by using a supercritical carbon dioxide bioenzyme bleaching agent, adopting such as figure 1 The shown supercritical carbon dioxide decoction bleaching device, the method comprises the steps:

[0062](1) Preparation of biological enzyme bleaching agent: the biological enzyme solution of Cellulomonas, Trichoderma reesei, Bacillus cereus, Pseudomonas fluorescens and Aspergillus niger ASP-12 obtained by the above method according to the volume ratio of 1 : 3:2:1:7 mix, stir evenly, set aside;

[0063] (2) 5kg ramie roving bobbins are put into the bleaching kettle, and the biological enzyme bleaching agent is put into the co-solvent tank;

[0064] (3) Turn on the refrigeration system, liquid CO 2 from CO 2 The outflow from the storage tank flows into the ultrasonic atomizer; open the co-solvent tank, under the action of the liquid delivery pump, the biological enzyme bleaching agent enters the ultrasonic atomizer through the co...

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Abstract

The invention discloses a biological enzyme scouring and bleaching agent and a scouring and bleaching method for scouring and bleaching roving. The biological enzyme scouring and bleaching agent is a mixed solution obtained by the following steps: separately fermenting cellulomonas sp, trichodermareesei, bacillus cereus, pseudomonas and aspergillus niger (ASP-12) to obtain fermentation broth; centrifuging the fermentation broth to obtain respective biological enzyme solutions; mixing the respective biological enzyme solutions according to the volume ratio of 1:(1 to 10):(1 to 10):(1 to 10):(1 to 10). For flax roving scoured and bleached by adopting the method disclosed by the invention, the whiteness is 55 to 80 percent, the weight loss ratio is 7 to 15 percent, the residual gum content is 4 to 12 percent, the single-fiber tensile strength is 7 to 15cN / dtex, and the elongation at break is 6 to 12 percent. The scouring and bleaching method disclosed by the invention has the advantages of no pollution and zero discharge in the whole process and important theoretical significance and application value; the scouring and bleaching method accords with the development requirement of low-carbon economy and embodies a modern life concept of fashion bast fiber spinning and green bast fiber spinning.

Description

technical field [0001] The invention belongs to the technical field of textile scouring and bleaching, and relates to a biological enzyme scouring and bleaching agent for roving and a roving scouring and bleaching method using the biological enzyme scouring and bleaching agent with supercritical carbon dioxide as a medium. Background technique [0002] Hemp fiber is the earliest high-quality plant fiber used by humans, accounting for 1.5% of the total amount of natural fibers. Its chemical composition mainly includes cellulose, hemicellulose, pectin, lignin, waxy and nitrogenous substances, among which hemicellulose, lignin and pectin are difficult to remove, and the crystallinity and orientation of hemp fiber molecules are relatively high. High, it is easy to affect the elongation, elasticity, clustering, softness and crimp of the fiber, which brings a lot of inconvenience to the process of spinning and weaving hemp fiber. Therefore, the boiling, bleaching and dyeing of he...

Claims

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Application Information

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IPC IPC(8): D06B9/02D06B9/06C12P1/02C12P1/04C12R1/01C12R1/885C12R1/085C12R1/39C12R1/685
CPCC12P1/02C12P1/04D06B9/02D06B9/06Y02P70/62
Inventor 郑来久张娟郑环达高世会闫俊赵虹娟熊小庆李飞霞韩益桐吴劲松
Owner DALIAN POLYTECHNIC UNIVERSITY
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