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A kind of method utilizing monochlorotriazine arylamine sulfonic acid to modify sodium alginate

A technology of monochloro-s-triazine arylamine sulfonic acid and triazine arylamine sulfonic acid, which is applied in the field of printing and dyeing auxiliaries and achieves the effects of good reproducibility, mild reaction conditions and clear outlines

Active Publication Date: 2017-08-15
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on this kind of chemical modification of sodium alginate has not been reported yet.

Method used

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  • A kind of method utilizing monochlorotriazine arylamine sulfonic acid to modify sodium alginate
  • A kind of method utilizing monochlorotriazine arylamine sulfonic acid to modify sodium alginate
  • A kind of method utilizing monochlorotriazine arylamine sulfonic acid to modify sodium alginate

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Experimental program
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Effect test

Embodiment 1

[0025] (1) In a three-neck flask equipped with 0.1mol cyanuric chloride, add crushed ice and acetone in turn, and stir and beat for 30 minutes. Dissolve 0.098mol p-aminobenzenesulfonic acid in an aqueous solution of sodium carbonate, and add it dropwise into a three-necked flask. During the whole reaction process, the pH is controlled at 6-7, the temperature is 0-5° C., the reaction is carried out for 3-5 hours, and the end point is detected by thin-layer chromatography to obtain dichloro-s-triazine-p-aminobenzenesulfonic acid. Subsequently, 0.098 mol of sodium p-aminobenzenesulfonate solution was added, the pH was controlled to 6-7, the temperature was 30-50° C., the reaction was carried out for 3-5 hours, and the end point was detected by thin-layer chromatography. After the reaction, vacuum filter the reaction solution, take the filtrate for acid analysis, then vacuum filter, take the filter cake, and vacuum dry for 24 hours to obtain monochloro-s-triazine p-aminobenzenesul...

Embodiment 2

[0036] (1) In a three-neck flask equipped with 0.1mol cyanuric chloride, add crushed ice and acetone in turn, and stir and beat for 30 minutes. Dissolve 0.098mol m-aminobenzenesulfonic acid in an aqueous solution of sodium carbonate, and add it dropwise into a three-necked flask. During the entire reaction process, the pH is controlled at 6-7, the temperature is 0-5° C., the reaction is carried out for 3-5 hours, and the end point is detected by thin-layer chromatography to obtain dichloro-s-triazine sulfanilic acid. Subsequently, 0.098 mol of sodium m-aminobenzenesulfonate solution was added, the pH was controlled to 6-7, the temperature was 30-50° C., the reaction was carried out for 3-5 hours, and the end point was detected by thin-layer chromatography. After the reaction, vacuum filter the reaction solution, take the filtrate for acid analysis, then vacuum filter, take the filter cake, and vacuum dry for 24 hours to obtain monochloro-s-triazine sulfanilic acid, which is gr...

Embodiment 3

[0047] (1) In a three-neck flask equipped with 0.1mol cyanuric chloride, add crushed ice and acetone in turn, and stir and beat for 30 minutes. Dissolve 0.098mol p-aminobenzenesulfonic acid in aqueous sodium carbonate solution, and add it dropwise into a three-necked flask. During the whole reaction process, the pH is controlled at 6-7, the temperature is 0-5° C., the reaction is carried out for 3-5 hours, and the end point is detected by thin-layer chromatography to obtain dichloro-s-triazine-p-aminobenzenesulfonic acid. Subsequently, 0.098 mol of sodium p-aminobenzenesulfonate solution was added, the pH was controlled to 6-7, the temperature was 30-50° C., the reaction was carried out for 3-5 hours, and the end point was detected by thin-layer chromatography. After the reaction, vacuum filter the reaction solution, take the filtrate for acid analysis, then vacuum filter, take the filter cake, and vacuum dry for 24 hours to obtain monochloro-s-triazine p-aminobenzenesulfonic ...

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Abstract

The invention discloses a method for modifying sodium alginate by utilizing monochlorotriazine arylamine sulfoacid. The method comprises the following steps: conducting first step reaction on cyanuric chloride and arylamine sulfoacid at 0-5 DEG C, then supplementally adding arylamine sulfoacid, and conducting second step reaction at 30-50 DEG C to generate monochlorotriazine arylamine sulfoacid; mixing monochlorotriazine arylamine sulfoacid and a sodium carbonate water solution, then adding the mixture into a sodium alginate water solution for modification, adjusting the pH of the reacting liquid to be 10-11 and the temperature to be 80-100 DEG C, and conducting stirring treatment for 30-90 min so as to obtain the sodium alginate water solution modified by monochlorotriazine arylamine sulfoacid; performing after-treatment to obtain sodium alginate modified by monochlorotriazine arylamine sulfoacid through. According to the method, monochlorotriazine arylamine sulfoacid is adopted for chemical modification on a sodium alginate pasty material, C2 and C3 site hydroxyls are blocked, the chemical bonding reaction of sodium alginate and active groups of active dye is shielded, and the surface color yield of printed cloth is improved.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing auxiliaries, in particular to a method for modifying sodium alginate with monochloro-s-triazine arylamine sulfonic acid. Background technique [0002] Printing paste is an important part of color paste, which affects the surface shade, color uniformity, pattern outline definition and hand feeling of printed fabrics, so it has always been the focus of general attention of printing workers. In order to promote the uptake of dye molecules on fabrics, the molecular structure of the paste cannot contain groups that have a strong affinity or reaction with dyes. [0003] Sodium alginate is the preferred paste for printing cellulose and protein-based textiles with reactive dyes, which is related to its unique molecular structure. It is connected by 1,4-poly-β-D-mannuronic acid (M unit) and α-L-guluronic acid (G unit) through 1,4-glycosidic bonds, and consists of different GG, GM Or a random ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/04D06P1/48
Inventor 王莉莉杨雷沈一峰王先成
Owner ZHEJIANG SCI-TECH UNIV