Enzyme oxygen-bath-low-temperature bleach process for fibre pretreatment

A low temperature, fiber technology, applied in fiber treatment, biochemical fiber treatment, bleaching products, etc., can solve the problems of difficulty in factory acceptance, and achieve good desizing effect, soft hand feeling and good wettability

Active Publication Date: 2009-08-19
QINGDAO VLAND BIOTECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the pretreatment of biorefining enzymes has undergone various application tests, most factories currently only selectively apply them to individual dark-colored varieties, and there are certain limitations in application
And in the subsequent dyeing process, due to the difference between the color light and the traditional process, it is necessary to re-sample and cause the workload of the laboratory personnel, so it is difficult for the factory to accept it.

Method used

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  • Enzyme oxygen-bath-low-temperature bleach process for fibre pretreatment
  • Enzyme oxygen-bath-low-temperature bleach process for fibre pretreatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dissolve the penetrant at 2g / L in the treatment bath at 30°C, put the textiles into it, and keep the treatment bath flowing evenly. Then raise the temperature to 55°C, add 1g / L biorefining enzyme and 3g / L hydrogen peroxide into the treatment bath, adjust the pH to 9, and treat for 40 minutes; then raise the temperature to 80°C, add 3g / L low-temperature bleaching agent, Under treatment for 20 minutes, then washed with water, enter the next process.

[0020] The whiteness of the textiles treated in the above way is 81.2, which is greater than the whiteness of 79.3 in the traditional alkali refining bleaching method. Such as figure 2 shown.

Embodiment 2

[0022] Dissolve the penetrating agent at 1g / L in the treatment bath at 30°C, put the fiber into it, and keep the treatment bath to circulate evenly. Then raise the temperature to 55°C, add 1g / L biorefining enzyme and 3g / L hydrogen peroxide into the treatment bath, adjust the pH to 7, and treat for 40 minutes; then raise the temperature to 80°C, add 3g / L low-temperature bleach, at this temperature Under treatment for 20 minutes, then washed with water, enter the next process.

[0023] The whiteness of the fiber treated in the above way is 81.3, which is greater than the whiteness of 80.5 in the traditional alkali refining bleaching method. Such as figure 1 shown.

[0024] The technique of the present invention is through the productive test in the factory, and aspects such as its semi-finished product index and the uniformity of dyeing all reach or exceed the treatment effect of traditional technique, be worth popularizing vigorously.

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Abstract

The invention discloses an oxidizing, bathing and low-temperature bleaching process for fiber pretreatment enzyme, which comprises the following steps: dissolving 1 to 2 grams per liter of osmotic agent in a treatment bath at a temperature of between 20 and 30 DEG C, putting textile into the treatment bath, and keeping the treatment bath flowing evenly and circularly; heating the temperature to 55 DEG C, adding 1 gram per liter of biological refining enzyme and 3 grams per liter of hydrogen peroxide into the treatment bath, adjusting the pH to be 7 to 9, and processing the treatment bath for 40 minutes; and heating the temperature to 80 DEG C, adding 3 grams per liter of low-temperature bleaching agent, treating the treatment bath at the temperature, then water washing, and entering the following processes. The process achieves low-temperature refining and low-temperature bleaching, and reaches the aim of low-temperature, environment-friendly, energy-saving and efficient preliminary treatment.

Description

technical field [0001] The invention relates to a fiber pretreatment process, in particular to an enzyme-oxygen one-bath-low-temperature bleaching pretreatment process, which belongs to the technical field of textiles. Background technique [0002] At present, the textile industry mostly adopts traditional chemical degumming and printing and dyeing processes, relying on strong acid and strong alkali to treat cotton and linen. The strong chemical action destroys the fiber structure of textiles while removing fiber symbiosis, and damages the fiber strength. Poor spinnability and low production rate. On the other hand, the chemical process consumes a large amount of chemical raw materials and energy such as acid and alkali, and the effluent has high alkalinity, deep color, high BOD, and particularly high COD, which has caused serious environmental pollution. [0003] With the continuous enhancement of people's awareness of environmental protection, green textiles and environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00C12S11/00D06M11/50D06L3/00D06L4/00D06L4/13
Inventor 黄炳亮刘鲁民陈刚周英俊陈亮珍郝荣耀宋爱国
Owner QINGDAO VLAND BIOTECH GRP
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