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Active cationic modifier and preparation method thereof and method for modifying silk fiber

A technology of active cationic and silk fibers, applied in dyeing, textiles and papermaking, etc., can solve the problems of inability to dye dark colors, unemployment of workers, shutdown of production, etc., and achieve high soaping fastness, high grafting fastness, improved Sexually efficient effect

Active Publication Date: 2018-01-12
JIANGSU SPCC SILK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many printing and dyeing enterprises have stopped production due to environmental problems, causing social problems such as unemployment of workers
[0003] At present, cationic modifiers also have certain applications in the printing and dyeing industry, but ordinary cationic modifiers have poor modification effects, unsatisfactory dye uptake rate, and poor dyeing effect in dark colors, and basically cannot be used for dyeing dark colors. Therefore, it is of great theoretical and practical significance to develop cationic modifiers with higher modification efficiency, improve the dye uptake rate of dyes, and improve the soaping fastness of dyed fibers and fabrics.

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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  • Active cationic modifier and preparation method thereof and method for modifying silk fiber
  • Active cationic modifier and preparation method thereof and method for modifying silk fiber
  • Active cationic modifier and preparation method thereof and method for modifying silk fiber

Examples

Experimental program
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Effect test

example 1

[0029] Add 450ml of water, 15ml of ethylenediamine, and 67ml of formaldehyde solution with a mass concentration of 40% to a 1000ml round bottom flask, place it in a constant temperature water bath at 60°C, and stir it mechanically for 30 minutes; after cooling to 35°C, add 123ml of Aqueous solution of dimethylamine with a concentration of 33% was reacted for 1h; then the temperature was raised to 40°C, 106ml of epichlorohydrin was added, and reacted for 1.5h. Ethylenediaminetetramethylenetetra(N,Ndimethyl)hexa(2,3 epoxypropyl) ammonium chloride (XS) modifier.

[0030] The prepared XS modifier was formulated into an aqueous solution with a mass concentration of 5%, and the degummed silk fiber was immersed in the XS aqueous solution at room temperature, with a bath ratio of 1:10, soaked for 10 minutes, and then the silk fiber was taken out and rolled in a rolling mill. Press, the rolling pressure is 0.3MPa, and the liquid carrying rate is 100%. Then the silk fibers were put int...

example 2

[0033] Add 300ml of water, 10ml of ethylenediamine, and 45ml of formaldehyde solution with a mass concentration of 40% to a 1000ml round bottom flask, place it in a constant temperature water bath at 40°C, and stir it mechanically for 30min; after cooling to 35°C, add 82ml of Aqueous solution of dimethylamine with a concentration of 33% was reacted for 1h; then the temperature was raised to 40°C, 70ml of epichlorohydrin was added, and reacted for 1.5h. Ethylenediaminetetramethylenetetra(N,Ndimethyl)hexa(2,3 epoxypropyl) ammonium chloride (XS) modifier.

[0034] The prepared XS modifier was formulated into an aqueous solution with a mass concentration of 10%, and the degummed silk fiber was immersed in the XS aqueous solution at room temperature, with a bath ratio of 1:10, soaked for 10 minutes, and then the silk fiber was taken out and rolled in a padding machine. Press, the rolling pressure is 0.3MPa, and the liquid carrying rate is 100%. Then put the silk fibers into an ove...

example 3

[0037] Add 360ml of water, 12ml of ethylenediamine, and 54ml of formaldehyde solution with a mass concentration of 40% to a 1000ml round bottom flask, place it in a constant temperature water bath at 50°C, and stir it mechanically for 30min; after cooling to 35°C, add 98ml of Aqueous solution of dimethylamine with a concentration of 33% was reacted for 1 hour; then the temperature was raised to 40°C, 85ml of epichlorohydrin was added, and the reaction was carried out for 1.5 hours. epoxypropyl) ammonium chloride (XS) modifier.

[0038] The prepared XS modifier was formulated into an aqueous solution with a mass concentration of 15%, and the degummed silk fiber was immersed in the XS aqueous solution at room temperature, with a bath ratio of 1:10, soaked for 10 minutes, and then the silk fiber was taken out and rolled in a rolling mill. Press, the rolling pressure is 0.3MPa, and the liquid carrying rate is 100%. Then the silk fibers were put into an oven and baked at 120° C. f...

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Abstract

The invention discloses a preparation method of an active cationic modifier. The preparation method sequentially comprises the following steps of sequentially adding water, ethylenediamine and a formaldehyde water solution into a reaction container, and reacting for at least 30min in water bath at the temperature of 35 to 60 DEG C; cooling the water bath temperature and maintaining to be 35 DEG C,adding a dimethylamine water solution, and reacting for 1h; increasing the water bath temperature to 40 DEG C, adding epichlorohydrin, maintaining the temperature to be 40 DEG C, and reacting for 1.5h, so as to obtain the modifier XS. The modifier XS contains a plurality of active epoxy groups, so that even if a certain amount of epoxy groups is hydrolyzed in the grafting reaction, the cationic modifier is firmly grafted to the silk fiber when one epoxy group and the silk fiber generate the chemical reaction; furthermore, the modifying efficiency of the cationic modifier is high.

Description

technical field [0001] The invention relates to the technical field of textile engineering, in particular to an active cationic modifier and a method for modifying silk fibers. Background technique [0002] Silk fiber is known as the "fiber queen". Because of its good luster, drape and outstanding health care functions, it is deeply loved by consumers and widely used in the field of clothing. Silk fibers are generally dyed with acid dyes and reactive dyes. The soaping fastness of silk fiber dyed with acid dyes is very poor; while the soaping fastness of silk fibers dyed with reactive dyes is good, but a large amount of salt will be used during dyeing, and the dye uptake rate is low. If the rate is low, a large amount of wastewater with high chroma and high salt concentration will be produced. The environmental processing load is very large, and the environmental pollution is serious. Today, as the world pays more and more attention to environmental pollution, printing and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/06D06P3/10D06P1/66D06P1/44D06P5/22
Inventor 陈松张光先单延霞
Owner JIANGSU SPCC SILK
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