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Modified peach gum paste for silk fabric acid dye printing and its preparation method and application

A technology of acid dyes and peach gum, which is applied in dyeing, textiles and papermaking, etc., can solve the problems of inability to disperse chemical additives evenly, limit the application of peach gum, and prevent peach gum from forming a paste, and achieve color fastness to soaping High grade, high color fastness to dry rubbing, not easy to paste

Active Publication Date: 2022-05-24
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Peach gum is a potential material for paste. However, peach gum is not easy to form a paste, and it cannot disperse chemical additives evenly in the colloid system. Its viscosity changes greatly when it is diluted. Due to these unfavorable factors, it is limited In order to prevent the application of peach gum in the field of printing paste, it is necessary to break through these unfavorable factors technically

Method used

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  • Modified peach gum paste for silk fabric acid dye printing and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of the modified peach gum paste printed with acid dyes on silk fabrics, the concrete method comprises the following steps:

[0026] (1) take by weighing 10g peach gum, be dissolved in the reactor that is housed with 150mL 3wt% NaOH aqueous solution, stir and dissolve at normal temperature; take by weighing 0.4g chloroacetic acid and add in the reactor, react at 65 ℃; add after the reaction finishes Distilled water, cooled, and adjusted the pH value to 7.5 with 5wt% hydrochloric acid to obtain a reaction solution of carboxymethyl peach gum.

[0027] (2) 1 g of sodium sulfite, 3 mL of 4wt% H 2 SO 4 React with 150 mL of the carboxymethyl peach gum reaction solution obtained in step (1), the reaction temperature is: 65° C., and the reaction time is: 7 hours. After the reaction, adjust the pH value to 7.5 with 25wt% NaOH aqueous solution to obtain modified solution.

[0028] (3) 1 g of epichlorohydrin was reacted with 150 mL of the modified solution...

Embodiment 2

[0031] The preparation method of the modified peach gum paste printed with acid dyes on silk fabrics, the concrete method comprises the following steps:

[0032] (1) take by weighing 8g peach gum, be dissolved in the reactor that is housed with 100mL 2wt% NaOH aqueous solution, stir and dissolve at normal temperature; take by weighing 0.24g chloroacetic acid and add in the reactor, react at 60 ℃; add after the reaction finishes Distilled water, cooled, and adjusted the pH value to 7 with 4wt% hydrochloric acid to obtain a carboxymethyl peach gum reaction solution.

[0033] (2) 1 g of sodium sulfite, 2 mL of 3wt% H 2 SO 4 React with 100 mL of the carboxymethyl peach gum reaction solution obtained in step (1), the reaction temperature is: 60 ° C, the reaction time is: 6 hours, after the reaction is completed, adjust the pH value to 7 with 20wt% NaOH aqueous solution to obtain modified solution.

[0034](3) react 1 g of epichlorohydrin with 100 mL of the modified solution obta...

Embodiment 3

[0037] The preparation method of the modified peach gum paste printed with acid dyes on silk fabrics, the concrete method comprises the following steps:

[0038] (1) take by weighing 12g peach gum, be dissolved in the reactor that is housed with 200mL 4wt% NaOH aqueous solution, stir and dissolve at normal temperature; take by weighing 0.6g chloroacetic acid and add it in the reactor, and react at 70 ℃; add after the reaction finishes Distilled water, cooled, and adjusted the pH value to 8 with 6wt% hydrochloric acid to obtain a carboxymethyl peach gum reaction solution.

[0039] (2) 1 g of sodium sulfite, 4 mL of 5wt% H 2 SO 4 React with 200 mL of the carboxymethyl peach gum reaction solution obtained in step (1), the reaction temperature is: 70 ° C, the reaction time is: 8 hours, after the reaction is completed, adjust the pH value to 8 with 30wt% NaOH aqueous solution to obtain modified solution.

[0040] (3) 1g of epichlorohydrin was reacted with 200mL of the modified s...

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Abstract

The invention relates to a modified peach gum paste for acid dye printing of silk fabrics, a preparation method and application thereof. The paste in the present invention is prepared from peach gum through carboxymethyl modification, sulfonation modification and crosslinking modification. The peach gum paste prepared by the invention is used for acid dye printing of silk fabrics, and the prepared printed fabric has the characteristics of depaste rate higher than 90%, good softness, high contour definition, permeability higher than 86% and dry friction resistance It has the characteristics of high color fastness and soaping color fastness, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of paste, and particularly relates to a modified peach gum paste for acid dye printing of silk fabrics and a preparation method and application thereof. Background technique [0002] Printing paste refers to a polymer compound that thickens in the color paste, which can be dispersed in water to make a thick colloidal solution with a certain concentration. In the actual printing process of textiles, the paste is the carrier that transfers the dyes and chemicals in the printing paste to the fabric, and is the main component of the printing paste. Although there are many factors affecting the printing quality, the properties of the printing paste largely determine the final printing effect of the fabric and are the key factor affecting the printing effect. [0003] For acid dye printing, for a long time, people's mastery of acid dye technology and problems in the production proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00D06P1/48D06P1/39D06P3/06
CPCC08B37/006D06P1/48D06P1/39D06P3/06
Inventor 周凡雨彭雄义刘仰硕董雄伟李强蔡亚军蔡映杰
Owner WUHAN TEXTILE UNIV
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