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Desizing, enzyme-washing and bleaching integrated one-bath process

A fermented washing and process technology, applied in the field of textile and garment washing, can solve the problems of unstable treatment quality, pollution of the working environment and natural environment, corrosion damage to equipment, etc., to achieve excellent bleaching finishing effect, improve grade and added value, reduce CO2 The effect of emissions

Inactive Publication Date: 2017-12-01
JIANGSU NEW REBA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: indigo dye is not resistant to chlorine bleaching, and it is relatively difficult to control in the washing process, and it is difficult to obtain the same bleaching degree in repeated operations; chlorine water is not only harmful in itself, polluting the working environment and natural environment, but also may generate in the bleaching process Chlorinated organics
Its disadvantages are: oxygen bleaching has high requirements on equipment, and the equipment needs to be made of stainless steel, which will cause great damage to the equipment. The price of hydrogen peroxide is higher than that of chlorine water, so the cost is higher
Its disadvantages are: Potassium permanganate has certain harm to the human body, and it requires high accuracy of conditions during the washing process, so it is relatively difficult to control
The existing rinsing process for denim garments not only causes a large loss of fabric strength and is not suitable for elastic fiber denim, but also causes unstable processing quality and corrosion and damage to equipment; at the same time, its process control requirements are high, the process is long, and water consumption is large. Clothes need to consume 4-6 tons of tap water from desizing to washing after rinsing; medium-high temperature operation is also required, and about 1 ton of rinsing solution needs to be steam-heated to 50°C-70°C, not only the energy consumption of steam is high , and the production efficiency is low. It takes 120-170 minutes to complete the processing of a machine of clothing materials, and the waste water discharge is high, polluting the environment, and the follow-up sewage treatment costs are high.
[0005] With people's emphasis on environmental protection, energy saving and emission reduction, these rinse agents and their processes have more and more limitations in the application process

Method used

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  • Desizing, enzyme-washing and bleaching integrated one-bath process
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  • Desizing, enzyme-washing and bleaching integrated one-bath process

Examples

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Effect test

Embodiment 1

[0046] A one-bath process for desizing, fermenting, washing and bleaching, the specific process steps of the process are:

[0047] (1) Add 800 liters of water and 100 kg of denim clothing to the industrial washing machine, turn on the steam heating, and raise the temperature to 50°C;

[0048] (2) Turn off the steam;

[0049] (3) Add 2% o.w.f desizing, yeast and washing two-in-one enzyme powder, and treat for 30 minutes;

[0050] The raw materials contained in the desizing, fermentation and washing two-in-one enzyme powder and the parts by weight of each raw material are: compound enzyme (a mixture of desizing enzyme and neutral cellulase, the mass ratio of the two is 1:1) 16 56 parts, anti-dyeing powder (C16-C18 fatty alcohol polyoxyethylene ether, active matter content greater than or equal to 99.9%, the pH value of its 5% aqueous solution is 7.5, and the flash point is greater than 100 ° C), 56 parts, anhydrous sodium tripolyphosphate 26 parts, 40 parts of adipic acid, 6 p...

Embodiment 2

[0068] A one-bath process of desizing, fermentation, washing and bleaching, the specific process steps of the desizing, fermentation, washing and bleaching one-bath process are:

[0069] (1) Add 600 liters of water and 60 kg of denim clothing to the industrial washing machine, turn on the steam heating, and raise the temperature to 60°C;

[0070] (2) Turn off the steam;

[0071] (3) Add 0.8% o.w.f desizing enzyme washing two-in-one enzyme powder, and treat for 50 minutes;

[0072] The raw materials contained in the desizing, fermentation and washing two-in-one enzyme powder and the parts by weight of each raw material are: compound enzyme (a mixture of desizing enzyme and neutral cellulase, the mass ratio of the two is 1:6) 6 20 parts, anti-dyeing powder (C16-C18 fatty alcohol polyoxyethylene ether, active matter content greater than or equal to 99.9%, the pH value of its 5% aqueous solution is 6.5, and the flash point is greater than 100 ° C), 20 parts, anhydrous sodium trip...

Embodiment 3

[0090] A one-bath process of desizing, fermentation, washing and bleaching, the specific process steps of the desizing, fermentation, washing and bleaching one-bath process are:

[0091] (1) Add 700 liters of water and 80 kg of denim clothing to the industrial washing machine, turn on the steam heating, and raise the temperature to 55°C;

[0092] (2) Turn off the steam;

[0093] (3) Add 1.4% o.w.f desizing enzyme washing two-in-one enzyme powder and treat for 40 minutes;

[0094] The raw materials contained in the desizing, fermentation and washing two-in-one enzyme powder and the parts by weight of each raw material are: compound enzyme (a mixture of desizing enzyme and neutral cellulase, the mass ratio of the two is 1:3.5)11 38 parts, anti-dyeing powder (C16-C18 fatty alcohol polyoxyethylene ether, active substance content greater than or equal to 99.9%, pH value of its 5% aqueous solution is 7, flash point greater than 100 ° C), 38 parts, anhydrous sodium tripolyphosphate ...

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Abstract

The invention discloses a desizing, enzyme-washing and bleaching integrated one-bath process which includes the steps of (1), adding water and denim garments in an industrial washing machine and starting steam-heating; (2), stopping the steam-heating; (3), adding in desizing and enzyme-washing two-in-one enzyme powder for processing; (4), adding in blenching enzymes for processing; (5), discharging working fluid in the industrial washing machine; (6), adding in water to wash denim garments in the industrial washing machine; (7), discharging bath foam in the industrial washing machine, and (8) dewatering and drying the denim garments to obtain the desized, enzyme-washed and bleached denim garments. By the desizing, enzyme-washing and bleaching integrated one-bath process, denim garments are processed with excellent and unique washing effect, while energy saving and environmental protection are achieved during processing. The desizing, enzyme-washing and bleaching integrated one-bath process is a good choice for washing of denim garments.

Description

technical field [0001] The invention relates to the technical field of washing of textiles and garments, in particular to a process method for desizing, fermenting and bleaching denim fabrics by using desizing, fermentation and washing two-in-one enzyme powder and biological bleaching enzyme. Background technique [0002] Rinsing is an important washing method in the washing of denim clothing. Its purpose is to make the fabric have a white or bright appearance and a soft feel. [0003] Rinsing can be divided into chlorine bleaching and oxygen bleaching. Chlorine bleaching uses the oxidation of chlorine water (sodium hypochlorite) to destroy the dye structure, so as to achieve the purpose of cleaning or fading. The fading effect of chlorine bleaching is rough, and it is mostly used for rinsing indigo denim. Its advantages are: bleaching is not only effective, fast, but also cheap. Its disadvantages are: indigo dye is not resistant to chlorine bleaching, and it is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L1/14D06L4/40D06M16/00D06M11/72D06M13/192D06M11/155D06M15/11D06M101/06
CPCD06L1/14D06L4/40D06M11/155D06M11/72D06M13/192D06M15/11D06M16/003D06M2101/06D06M2200/50
Inventor 储平
Owner JIANGSU NEW REBA TECH CO LTD
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