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Preparation method and application off dyeing promoter

A dyeing accelerator and reaction technology are applied in the field of preparation of polyepichlorohydrin amide dyeing accelerators to achieve the effects of shortened dyeing process flow, reduced residual amount and strong practicability

Active Publication Date: 2013-10-02
HIGH FASHION CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the silk dyeing process, a large amount of dyeing accelerator (yuanming powder) is used to promote the dyeing of the fiber, which causes a burden on wastewater treatment

Method used

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  • Preparation method and application off dyeing promoter
  • Preparation method and application off dyeing promoter
  • Preparation method and application off dyeing promoter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The method for preparing dyeing accelerator DL-71

[0044] Connect a constant pressure funnel, a nitrogen inlet, a thermometer, and a stirring device to the four-necked flask, and pass nitrogen to remove the air in the device; place the entire device in an ice-water bath at 0-5°C, and add 80ml of CCl in sequence 4 , 11.35gBF 3 O(C 2 h 5 ) 2 and 3.72gEG. Add 92.52g ECH into the constant pressure funnel, control the dropping rate to 1 drop / 2.5 seconds, and control the temperature at 32°C for 8 hours after the dropping is completed. Purify with 85:15 acetone-ethanol mixture after the reaction, and then add 10% EDTANa after purification 4 The low-molecular oligomers in the product were removed by an aqueous alcohol solution, and finally unreacted monomers and solvents were removed on a rotary evaporator at 60°C to obtain polyepichlorohydrin.

[0045] Weigh the polyepichlorohydrin and dimethylamine aqueous solution synthesized in the first step according to the mass ra...

Embodiment 2

[0047] Preparation method of dyeing accelerator DL-71

[0048] Connect the four-neck flask to a constant pressure funnel, a nitrogen inlet, a thermometer, and a stirring device, and pass nitrogen to remove the air in the device. Place the whole device in an ice-water bath at 0-5°C, and add 75ml of CCl in sequence 4 , 9.93gBF 3 O(C 2 h 5 ) 2 and 3.1gEG. Add 92.52g of ECH to the constant pressure funnel, control the dropping rate of 1 drop / 2 seconds, control the temperature at 30°C for 8 hours after the dropping is completed; after the reaction is completed, use 85:15 acetone-ethanol mixture to purify, and then add 10% EDTANa 4 The low-molecular oligomers in the product were removed by an aqueous alcohol solution, and finally unreacted monomers and solvents were removed on a rotary evaporator at 62°C to obtain polyepichlorohydrin.

[0049] Weigh the polyepichlorohydrin and dimethylamine aqueous solution synthesized in the first step according to the mass ratio of 1:3, pla...

Embodiment 3

[0051] Preparation method of dyeing accelerator DL-71

[0052] Connect the four-neck flask to a constant pressure funnel, a nitrogen inlet, a thermometer, and a stirring device, and pass nitrogen to remove the air in the device. Place the whole device in an ice-water bath at 0-5°C, and add 85ml of CCl in sequence 4 , 12.77gBF 3 O(C 2 h 5 ) 2 and 4.43g EG; add 92.52g ECH into the constant pressure funnel, control the dropping rate to 1 drop / 3 seconds, and control the temperature at 30°C for 10 hours after the dropping is completed. After the completion of the reaction, the acetone-ethanol mixture of 85:15 was purified, and after purification, it was purified by adding 12% EDTANa 4 The low-molecular oligomers in the product were removed by an aqueous alcohol solution, and finally unreacted monomers and solvents were removed on a rotary evaporator at 62°C to obtain polyepichlorohydrin.

[0053] Weigh the polyepichlorohydrin and dimethylamine aqueous solution synthesized in ...

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Abstract

The invention relates to a preparation method and application of a dyeing promoter. The invention aims to provide a method for preparing a promoter, which can carry out cation modification on natural fibers like cotton and silk, and provides a technology for modification of natural fibers by employing the above mentioned dyeing promoter. A technical scheme is as below: a preparation method of a polypichlorohydrin amide dyeing promoter is carried out according to the following steps: 1) synthesis of polypichlorohydrin; and 2) synthesis of the polypichlorohydrin amide dyeing promoter. The method for modification of natural fibers by employing the polypichlorohydrin amide dyeing promoter is carried out according to the following steps: preparing a modification liquid according to the scheme, and placing the modification liquid in a constant temperature water-bath pan for oscillation; and adding a natural cellulose fabric into the modification liquid, and taking out and washing the fabric; or preparing a modification liquid according to the scheme, and placing the modification liquid in a constant temperature water-bath pan for oscillation; and adding a natural silk fabric into the modification liquid, and taking out and washing the fabric.

Description

technical field [0001] The invention relates to a dyeing auxiliary, in particular to a preparation method and application of a polyepichlorohydrin amide dyeing accelerator. Background technique [0002] In recent years, as people's awareness of environmental protection continues to strengthen, natural fiber textiles are increasingly favored by consumers. Silk fiber has the reputation of "fiber queen" and has unparalleled unique properties: light and smooth, soft and comfortable, good moisture absorption, air permeability, unique soft and bright luster, and has a health care effect on the human body; therefore, silk products are very popular among people. . As a natural cellulose fiber, cotton fiber has good hygroscopicity, dyeability, wear resistance, and good air permeability. Clothes made of it are comfortable to wear and not easy to pilling, such as denim clothing, which has always been a popular element in the clothing industry. , with its breathable, hygroscopic and c...

Claims

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Application Information

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IPC IPC(8): C08G65/333C08G65/28D06P1/607D06P1/44D06P3/66
Inventor 余志成吴岚王奇兵王晓芳翁艳芳
Owner HIGH FASHION CHINA CO LTD
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