A kind of multi-functional finishing agent for dyeing polyester fiber materials with resistance to reduction and cleaning in the same bath and its preparation method

A polyester fiber, multi-functional technology, applied in fiber treatment, fiber type, textiles and papermaking, etc., can solve the problems of poor dyeing reproducibility, complicated dyeing process, insufficient refining, etc., to reduce dyeing cost and simplify dyeing process , the effect that the quality is easier to control

Active Publication Date: 2016-02-24
DUPLUS CHEM OF ZHANGJIAGANG CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the dyeing of polyester is usually carried out under weak acidic conditions with disperse dyes, while the desizing and refining of polyester woven fabrics before dyeing, alkali reduction, and soaping and reduction cleaning after dyeing are all carried out under alkaline conditions. Insufficient refining of uneven pulp, or insufficient washing after alkali reduction, can easily cause uneven dyeing when dyeing in an acidic bath
The fluctuation of the pH value of the dyeing bath will affect the change of shade, because the dyeing reproducibility is poor. In addition, when dyeing in an acidic bath, uncleaned pulp, oil, wax and polyester oligomers are often precipitated. Contaminate the inner wall of the toner, causing the fabric to be scratched, so the whole dyeing process is complicated and difficult to control

Method used

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  • A kind of multi-functional finishing agent for dyeing polyester fiber materials with resistance to reduction and cleaning in the same bath and its preparation method
  • A kind of multi-functional finishing agent for dyeing polyester fiber materials with resistance to reduction and cleaning in the same bath and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Weigh 1000 grams of polyethylene glycol (molecular weight 1000), 180 grams of ethylene glycol, 200 grams of dimethyl phthalate, 120 grams of adipic acid, 70 grams of diethyl oxalate, polytetramethylene ether 800 grams of diol (PTMG molecular weight 1000), 3 grams of zinc acetate;

[0019] 2) Put the above materials into the reaction kettle, raise the temperature to 140°C and keep it for 190 minutes, continue to raise the temperature to 220°C and keep it for 70 minutes, then carry out the polymerization reaction at a vacuum degree of -0.08MPa and a temperature of 230°C to generate a number average molecular weight of 5000~ 6000 block copolymer of polyester polyether, after cooling down to 190 ℃, discharge; after cooling, the product is ready.

Embodiment 2

[0021] l) Weigh 1000 grams of polyethylene glycol (molecular weight 800), 200 grams of ethylene glycol, 180 grams of dimethyl phthalate, 120 grams of sebacic acid, 80 g of dimethyl oxalate, polytetramethylene ether two Alcohol (PTMG molecular weight 400) 800, 3 grams of zinc acetate;

[0022] 2) Put the above materials into the reaction kettle, raise the temperature to 150°C and keep it for 160 minutes, continue to raise the temperature to 210°C and keep it for 60 minutes, then carry out the polymerization reaction at a vacuum degree of -0.08MPa and a temperature of 240°C to generate a number average molecular weight of 8000~ 9000 block copolymer of polyester polyether, after cooling down to 200 ℃, discharge; after cooling, the product is ready.

Embodiment 3

[0024] l) Weigh 900 grams of polyethylene glycol (molecular weight 4000), 180 grams of ethylene glycol, 180 grams of dimethyl phthalate, 120 grams of fumaric acid, 80 g of diethyl oxalate, polytetramethylene ether two Alcohol (PTMG molecular weight 2000) 800, 3 grams of zinc acetate;

[0025] 2) Put the above materials into the reaction kettle, raise the temperature to 180°C and keep it for 180 minutes, continue to raise the temperature to 210°C and keep it for 60 minutes, then carry out the polymerization reaction at a vacuum degree of -0.09MPa and a temperature of 280°C to generate a number average molecular weight of 14000~ 15000 block copolymer of polyester polyether, after cooling down to 200 ℃, discharge; after cooling, the product is ready.

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Abstract

The invention relates to a dye-bath reduction clearing resistant multifunctional finishing agent for a polyester fiber material and a preparation method thereof. The raw material comprises the following raw materials in parts by weight: 50-150 parts of polyethylene glycol, 14-41 parts of ethylene glycol, 15-27 parts of dimethyl phthalate, 10-15 parts of organic dibasic acid, 5-10 parts of oxalic ester, 15-100 parts of polytetramethylene ether glycol and 0.2-1 part of acetic acid metal salt as a catalyst. The polyester fiber material modified by the finishing agent has good fluffy and soft feeling, an antistatic property, a smooth hydrophilic property and the like, the finishing agent is excellent in high-temperature dyeing bath performance and reduction cleaning resistance, not only is the dyeing process simplified and the technological process shortened, but also the overall flow is reasonable, the quality of the dyed product is easy to control, the consumption of manpower, water and electricity, steam and chemicals is significantly reduced, the dyeing cost is greatly lowered, and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to a dyed same-bath reduction cleaning multifunctional finishing agent for polyester fiber materials and a preparation method thereof. Background technique [0002] As we all know, the dyeing of polyester is usually carried out under weak acidic conditions with disperse dyes, while the desizing and refining of polyester woven fabrics before dyeing, alkali reduction, and soaping and reduction cleaning after dyeing are all carried out under alkaline conditions. Insufficient refining of uneven pulp, or insufficient water washing after alkali reduction, can easily cause uneven dyeing when dyeing in an acidic bath. The fluctuation of the pH value of the dyeing bath will affect the change of shade, because the dyeing reproducibility is poor. In addition, when dyeing in an acidic bath, uncleaned pulp, oil, wax and polyester oligomers are often precipitated. Contaminate the inner wall of the toner and cause scratches to the fabric, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/53D06M13/224D06M13/192D06M13/203D06M13/148D06M101/32
Inventor 陈金辉王宇飞吴宇文陈秋坤叶挺倪忠方玉琦吴玉春
Owner DUPLUS CHEM OF ZHANGJIAGANG CITY
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