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A kind of biological fading method of vulcanized black waste cloth

A sulfur black, biological technology, applied in the field of textile printing and dyeing, can solve the problems of long fading time, high cost, air pollution, etc., to avoid soil acidification or alkalization, improve treatment efficiency, and speed up the effect of reaction speed

Active Publication Date: 2021-10-26
ZHUHAI BAICO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Common vulcanized black waste fabrics include vulcanized black waste yarn and waste cloth, etc. The traditional fading method of vulcanized black waste yarn / waste cloth is mainly to use sodium chlorite to oxidize for fading. This fading method will produce chlorine gas, which will not only Polluted air will also cause acidification pollution to the surrounding water body and soil, and will also cause certain harm to the health of operators
When using the traditional fading method to fade vulcanized black waste yarn / cloth, the required fading time is longer, which is more than twice the fading time of waste yarn / cloth dyed with other dyes, which seriously affects the production efficiency
In addition, the cost of fading vulcanized black waste yarn / cloth using traditional fading methods is high, requiring more than twice the cost of fading waste yarn / cloth dyed with other dyes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A biofading method for vulcanized black waste cloth, comprising the following steps:

[0029] 1) Add 8kg of water, 15g of esterase, 250g of 32wt% hydrogen peroxide and 15g of potassium hydroxide successively into a stainless steel container with a diameter of 30cm and a capacity of 20kg of water, and stir and mix evenly;

[0030] 2) Put 2kg of vulcanized black waste yarn into a stainless steel container, immerse the liquid in the stainless steel container into the vulcanized black waste yarn, and place it for reaction for 40 minutes;

[0031] 3) cleaning the vulcanized black waste yarn with clear water until there is no floating color and size;

[0032] 4) Put the cleaned vulcanized black waste yarn into another stainless steel container, inject 5kg of 32wt% hydrogen peroxide, and soak for 60min to fade the vulcanized black waste cloth.

Embodiment 2

[0034] A biofading method for vulcanized black waste cloth, comprising the following steps:

[0035] 1) Add 2500kg of water, 5kg of esterase, and 150kg of 50wt% calcium peroxide successively in a stainless steel container with a diameter of 1.8m and a capacity of 3000kg of water, and stir and mix evenly;

[0036] 2) Put 500kg of vulcanized black waste cloth into a stainless steel container, immerse the liquid in the stainless steel container in the vulcanized black waste cloth, and place it for reaction for 60 minutes;

[0037] 3) Wash the vulcanized black waste cloth with clear water until there is no floating color and slurry;

[0038] 4) Inject 200 kg of 35 wt % hydrogen peroxide into the cleaned sulfurized black waste cloth and soak for 3 hours to fade the sulfurized black waste cloth.

Embodiment 3

[0040] A biofading method for vulcanized black waste cloth, comprising the following steps:

[0041] 1) Add 3000kg of water, 10kg of esterase, 200kg of 30wt% hydrogen peroxide and 15kg of sodium hydroxide successively in a stainless steel container with a diameter of 1.8m and a capacity of 3000kg of water, and stir and mix evenly;

[0042] 2) Put 1000kg mixed sulfide black waste yarn and sulfide black waste cloth into a stainless steel container, immerse the liquid in the stainless steel container into the sulfide black waste cloth, and place it for reaction for 3 hours;

[0043] 3) Clean the vulcanized black waste cloth with clear water until there is no floating color and slurry;

[0044] 4) Inject 400 kg of 8 wt % potassium permanganate into the cleaned sulfide black waste cloth and soak for 6 hours to fade the sulfide black waste cloth.

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PUM

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Abstract

The invention discloses a bio-fading method for sulfide black waste cloth, which mainly comprises soaking the sulfide black waste cloth with a mixed solution of esterase, peroxide and soluble hydroxide, reacting for 40-180 minutes, and then cleaning the sulfide black waste cloth, Then use the strong oxide solution to soak the cleaned sulfide black waste cloth to fade the sulfide black waste cloth. The biological fading method of the present invention does not use environmentally harmful reagents, does not produce sulfur-containing and chlorine-containing waste gases and acids, and can avoid these waste gases and acids from causing damage to the operator's body and polluting the external environment; the esterase used has Specificity, it only reacts to the thioester bond in the dye, and will not affect other factors; the esterase used is biodegradable, after the reaction, it can be absorbed and utilized by other organisms in nature; soluble hydrogen The oxide and the acid produced in the reaction process are neutralized to generate heat, which greatly accelerates the reaction speed and improves the treatment efficiency.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a bio-fading method for vulcanized black waste cloth. Background technique [0002] Common vulcanized black waste fabrics include vulcanized black waste yarn and waste cloth, etc. The traditional fading method of vulcanized black waste yarn / waste cloth is mainly to use sodium chlorite to oxidize for fading. This fading method will produce chlorine gas, which will not only Air pollution will also cause acidification pollution to the surrounding water body and soil, and will also cause certain harm to the health of operators. When using the traditional fading method to fade vulcanized black waste yarn / waste cloth, the required fading time is longer, which is more than twice the time of fading waste yarn / waste cloth dyed with other dyes, which seriously affects the production efficiency. In addition, the cost of fading vulcanized black waste yarn / waste cloth usi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06L4/13D06L4/12
CPCD06L4/12D06L4/13
Inventor 周泰立邝志敏
Owner ZHUHAI BAICO BIOTECH