A kind of disperse dye polyester dyeing method using siloxane as medium

A technology of disperse dyes and dyeing methods, applied in the field of textile ecological dyeing and finishing, can solve the problems of difficult wastewater treatment, large water consumption, and high equipment dependence, and achieve the effect of reducing dependence and requirements

Active Publication Date: 2021-08-20
HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In short, the existing disperse dyeing methods have defects such as large water consumption, difficult wastewater treatment, high dependence on equipment, or other ecological problems. After years of research, the above problems have not been fundamentally solved. / Anhydrous dyeing method is an important breakthrough

Method used

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  • A kind of disperse dye polyester dyeing method using siloxane as medium
  • A kind of disperse dye polyester dyeing method using siloxane as medium
  • A kind of disperse dye polyester dyeing method using siloxane as medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 30g of disperse red dye and 200g of siloxane medium to prepare a dye solution for later use. Get 6kg of polyester fiber and put it into siloxane medium, liquor ratio 1:4.5, add dyeing solution and 500g ethyl acetate, keep 7 o C / min heating up to 80 o C, keep 2 o C / min heating up to 140 o C, keep warm for 60min, quickly cool down and remove the liquid, then add siloxane medium, with 7 o C / min heating up 80 o C to keep warm for 10 minutes, wash twice in total, and finally deliquify and dry to obtain the finished dyed product.

[0024]

Embodiment 2

[0026] Take 10g of disperse orange dye and 200g of siloxane medium to prepare a dye solution for later use. Take 1.5kg of polyester fiber and put it into siloxane medium, bath ratio 1:5, add dye solution and 50% ethanol, keep 5 o C / min heating up to 80 o C, keep 3 o C / min heating up to 140 o C, keep warm for 50min, quickly cool down and remove the liquid, then add siloxane medium, with 8 o C / min heating up to 90 o C to keep warm for 10 minutes, wash twice in total, and finally deliquify and dry to obtain the finished dyed product.

[0027]

Embodiment 3

[0029] Take 0.1g of disperse blue dye and 1g of siloxane medium to prepare a dye solution for later use. Take 10g of polyester fiber and put it into siloxane medium, the bath ratio is 1:10, add dyeing solution, keep 7 o C / min heating up to 80 o C insulation for 30min, the insulation process is divided into four equal parts, the first three parts are three times to add dye solution, the last part is to add 1g acetic acid, keep 2 o C / min heating up to 140 o C, keep warm for 60min, quickly cool down and remove the liquid, then add siloxane medium, with 7 o C / min heating up 80 o C to keep warm for 10 minutes, wash twice in total, and finally deliquify and dry to obtain the finished dyed product.

[0030]

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Abstract

The invention discloses a method for dyeing polyester with disperse dyes using siloxane as a medium, and belongs to the technical field of textile dyeing and finishing. The dyeing method includes the following steps: (1) adding the dyed object, prepared dye solution and dyeing accelerator into the dyeing medium for dyeing; (2) deliquoring after dyeing, washing with siloxane medium, and drying to obtain the finished dyed product. Compared with the patent CN103074781A, this method does not need pretreatment for general dyed objects, and only needs to add a small amount of non-toxic dyeing accelerator when dyeing, which realizes the dyeing of polyester textiles under normal pressure or micro pressure conditions, thereby reducing the need for equipment. Dependencies and requirements (high temperature and pressure). Subsequent washing abandons the water washing method and uses siloxane medium to achieve zero discharge of sewage, and can effectively improve the uniformity and color fastness of disperse dyeing; and the siloxane medium obtained by dyeing, washing, and drying can be recycled. Using it, the ecological dyeing of disperse dyes is really realized.

Description

technical field [0001] The invention relates to a new polyester dyeing method with disperse dyes, especially polyester without any pretreatment, and during dyeing and washing in silicone medium, without using a large amount of water, dispersant and carrier, reducing the degree of pollution and realizing Zero discharge of sewage belongs to the technical field of textile ecological dyeing and finishing. Background technique [0002] Disperse dyeing is mainly for polyester and other synthetic fibers. The conventional dyeing of polyester fibers by disperse dyes at home and abroad is still water bath dyeing under the action of auxiliary agents, and the dyes are evenly dispersed in aqueous solution with the help of dispersants. In the actual dyeing process, a large amount of dispersant or carrier needs to be added. The carrier is toxic and will cause great harm to the environment and the human body. The solubilizing effect of the dispersant will cause more dyes to remain in the dy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/92D06P3/54
CPCD06P1/928D06P3/54
Inventor 王际平程文青裴刘军
Owner HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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