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Dyeing process for elastic polyester-polyurethane fabric

A technology of fabric dyeing and processing method, applied in the direction of dyeing method, textile and papermaking, textile material processing, etc., can solve the problem of reducing color fastness, polyester component dye uptake rate and improvement rate are not well reflected, dispersed Dyes can't dye polyester well, so as to improve the color fastness of each item and improve the color fastness of each item

Inactive Publication Date: 2007-10-03
毛中水
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the fabric containing spandex elastic fiber has high elasticity and excellent rebound performance, it is soft to the touch, comfortable to wear, and can show the beauty of body shape, so it has been used more and more, and the production of polyester / spandex composite fiber Technology is to shift from conventional products to high value-added products. The polyester-spandex elastic fabric market has great potential for development. However, due to the existence of spandex, in order to avoid damage to the performance of spandex, high-temperature dyeing of polyester is limited, while low-temperature dyeing often makes Disperse dyes cannot penetrate polyester very well, and the dye uptake rate and lifting rate of polyester components have not been well reflected. At the same time, due to the structural characteristics of spandex, disperse dyes are easy to dye spandex and desorb, so it reduces The color fastness of this type of product is guaranteed, so in order to improve the overall quality of this type of product, it is necessary to find a processing method for this type of product

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

[0018] The polyester-spandex elastic fabric dyeing processing method includes a dyeing process and a reduction cleaning process. The dyeing process materials used in this embodiment are: low-temperature disperse dyes, the consumption is 0.1% of the fabric weight, and the ammonium acetate of 2g / L adjusts the pH value to 4 , 0.1g / L dispersing leveling agent is used as dyeing aid, the liquor ratio is 50:1, and the temperature is 100°C; the reduction cleaning process uses: 3g / L sodium dithionite, 0.1g / L sodium hydroxide, 0.1g / L soaping agent is used as a cleaning aid, and the polyester-spandex elastic fabric dyeing process is completed under the condition of a bath ratio of 5:1.

Embodiment 2

[0020] The polyester-spandex elastic fabric dyeing and processing method includes a dyeing process and a reduction cleaning process. The dyeing process materials used in this embodiment are: the amount of medium-temperature disperse dyes is 3% of the fabric weight, and the ammonium acetate of 1g / L adjusts the pH value to 4.5. 2g / L chelating dispersant is used as a dyeing aid, the liquor ratio is 15:1, and the temperature is 115°C; the reduction cleaning process uses: 2g / L sodium dithionite, 2g / L sodium hydroxide, 1g / L The acid-base hydrosulfite is used as a cleaning aid, and the polyester-spandex elastic fabric dyeing process is completed under the condition of a liquor ratio of 15:1.

Embodiment 3

[0022] The polyester-spandex elastic fabric dyeing processing method includes a dyeing process and a reduction cleaning process. The dyeing process materials used in this embodiment are: the amount of medium-temperature disperse dyes is 5% of the fabric weight, and the ammonium acetate of 0.1g / L adjusts the pH value. 2g / L disperse leveling agent is used as a dyeing aid, the liquor ratio is 5:1, and the temperature is 130°C; the reduction cleaning process uses: 0.1g / L sodium dithionite, 3g / L sodium hydroxide, 3g / L The degreasing spirit is used as a cleaning aid, and the polyester-spandex elastic fabric dyeing process is completed under the condition of a liquor ratio of 50:1.

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 dyeing process for elastic polyester-polyurethane fabric includes one dyeing step and one reducing and cleaning step. The dyeing step using disperse dye, ammonium acetate and dyeing assistant is performed in certain bath ratio and at certain temperature. The reducing and cleaning step using sodium hydrosulfite, sodium hydroxide and cleaning assistant is performed in certain bath ratio. The dyeing process can dye polyester component well at low temperature dyeing condition, and has well dyeing on polyurethane component and high color fastness.

Description

technical field [0001] The invention relates to a dyeing and processing method of polyester-spandex elastic fabric. Background technique [0002] Because the fabric containing spandex elastic fiber has high elasticity and excellent rebound performance, it is soft to the touch, comfortable to wear, and can show the beauty of body shape, so it has been used more and more, and the production of polyester / spandex composite fiber Technology is to shift from conventional products to high value-added products. The polyester-spandex elastic fabric market has great potential for development. However, due to the existence of spandex, in order to avoid damage to the performance of spandex, high-temperature dyeing of polyester is limited, while low-temperature dyeing often makes Disperse dyes cannot penetrate polyester very well, and the dye uptake rate and lifting rate of polyester components have not been well reflected. At the same time, due to the structural characteristics of spand...

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): D06P1/16D06P3/85D06P1/44D06M11/54D06B1/00
Inventor 毛中水
Owner 毛中水
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