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Medium-dark color polyester fabric dyeing method

A polyester fabric and dyeing method technology, which is applied in the dyeing field of medium and dark polyester fabrics, can solve the problems of production efficiency and production cost limitation, increased sewage treatment pressure, long process cycle, etc., so as to reduce production cost and sewage treatment cost. , the effect of improving production efficiency

Active Publication Date: 2015-08-12
PACIFIC (PANYU) TEXTILES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional disperse dyeing post-dyeing cleaning processes include reduction cleaning, high-temperature soaping, etc. The process cycle is long, energy consumption is high, production efficiency and production costs are limited, and the additives used also increase the pressure of subsequent sewage treatment

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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  • Medium-dark color polyester fabric dyeing method
  • Medium-dark color polyester fabric dyeing method
  • Medium-dark color polyester fabric dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Polyester fabric: pure polyester 50D / 144F, knitted double-sided fabric, width 160cm, weight 95g / m 2 .

[0028] Disperse dye formula:

[0029] Disperse Red S-5BL / %(owf): 1.0

[0030] Disperse blue HGL / %(owf): 0.8

[0031] Disperse black ECO / %(owf): 6.6

[0032] After degreasing and pre-setting, the polyester fabric falls into the dyeing vat (AK-DSL dyeing vat in Taiwan). The pressure in the dyeing vat is 4bar. Add water to soak the polyester fabric, raise the temperature to 40°C, dilute and mix the disperse dyes in the auxiliary vat evenly Finally, add disperse dyes into the dye vat, use 1:1 acetic acid and sodium acetate buffer to adjust the pH of the dye solution to 4.2, control the bath ratio to 1:12, then heat up to 80°C at 2°C / min for dyeing, and then dye with 1 The rate of ℃ / min is raised to 130 ℃ for dyeing and heat preservation; the plate heat exchanger is used for cleaning. The temperature of the residual liquid is reduced from 110°C to 95°C at a rate of 1....

Embodiment 2

[0051] Polyester fabric: pure polyester 50D / 144F, knitted double-sided fabric, width 160cm, weight 95g / m 2 .

[0052] Disperse dye formula:

[0053] Disperse Yellow SFN / %(owf): 0.82

[0054] Disperse Red SFN / %(owf): 0.35

[0055] Disperse blue SFN / %(owf): 1.18

[0056] Disperse black SFN / %(owf): 6.5

[0057] After degreasing and presetting, the polyester fabric falls into the dyeing vat (AK-DSL dyeing vat in Taiwan). The pressure in the dyeing vat is 3bar. Add water to soak the polyester fabric and raise the temperature to 40°C. Dilute and mix the disperse dyes in the auxiliary vat evenly. Finally, add disperse dyes into the dye vat, use 1:1 acetic acid and sodium acetate buffer solution to adjust the pH of the dye solution to 4.1, control the bath ratio to 1:8, then heat up to 80°C at 2°C / min for dyeing, and then dye at 1 The rate of ℃ / min is raised to 130 ℃ for dyeing and heat preservation; the plate heat exchanger is used for cleaning. The temperature of the residual ...

Embodiment 3

[0062] Polyester fabric: pure polyester 50D / 144F, knitted double-sided fabric, width 160cm, weight 95g / m 2 .

[0063] Disperse dye formula:

[0064] Disperse Red S-5BL / %(owf): 0.9

[0065] Disperse blue HGL / % (owf): 6.1

[0066] Disperse black ECO / %(owf): 2.3

[0067] After degreasing and presetting, the polyester fabric falls into the dye vat (Taiwan Yaji AK-DSL dye vat), the pressure in the dye vat is 5bar, the polyester fabric is soaked with water, the temperature is raised to 40°C, and the disperse dye in the auxiliary vat is diluted and mixed evenly Finally, add disperse dyes into the dye vat, use 1:1 acetic acid and sodium acetate buffer to adjust the pH of the dye solution to 4.3, control the bath ratio to 1:15, then heat up to 80°C at 2°C / min for dyeing, and then dye with 1 The rate of ℃ / min is raised to 130 ℃ for dyeing and heat preservation; the plate heat exchanger is used for cleaning. The temperature of the residual liquid is reduced from 110°C to 95°C at a r...

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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Abstract

The present invention discloses a medium-dark color polyester fabric dyeing method, which comprises a washing step, wherein clear water is injected into a dyeing jar under a pressure of 3-5 bar to wash a polyester fabric, and the clear water temperature is 10-15 DEG C lower than the temperature of the residual liquid in the dyeing jar. According to the present invention, the non-reducing washing is performed under the high pressure condition, the clear water is injected into the dyeing jar when the clear water temperature is controlled to 10-15 DEG C lower than the temperature of the residual liquid, the polyester fabric can be washed when the temperature of the residual liquid in the dyeing jar is reducing, the concentrations of the dye in the redisual liquid and other auxiliary agents in the dyeing jar are continuously reduced, the rapid temperature decreasing caused by the too low temperature of the injected water can not be generated, and the polyester fabric wrinkling caused by rapid cooling and shrinkage can be avoided; and with the medium-dark color polyester fabric produced by the method of the present invention, the stability and the color fastness which the traditional reducing washing can achieve can be achieved, the use of caustic soda and sodium hydrosulfite is avoided, and environmental protection advantages of production cost reducing and sewage treatment cost reducing are provided.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a method for dyeing medium-dark polyester fabrics. Background technique [0002] Dyeing and finishing is a high-energy-consuming production method. With the continuous improvement of environmental protection awareness, the country has continuously strengthened the requirements for textile printing and dyeing processing. Under the condition of ensuring dyeing quality, how to reduce energy consumption and reduce pollution is the common concern of all textile printing and dyeing enterprises. important question. Traditional disperse dyeing post-dyeing cleaning processes include reduction cleaning, high-temperature soaping, etc. The process cycle is long, energy consumption is high, production efficiency and production costs are limited, and the additives used also increase the pressure of subsequent sewage treatment. [0003] The traditional reduction cleaning process is usually ...

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 Applications(China)
IPC IPC(8): D06P1/16D06P3/54D06L1/12D06B23/20
Inventor 张贵张烨王思捷皮建兵李成炳阳段梅陈臻黄至薪辛洪贵
Owner PACIFIC (PANYU) TEXTILES LTD
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