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Dyeing promoter and preparation thereof, and dyeing method

A dyeing accelerator, group technology, applied in the printing and dyeing field of the textile industry

Active Publication Date: 2021-04-13
NEWTECH TEXTILE TECH DEV SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is still room for improvement for the above-mentioned technical problems, and it is also necessary to further explore suitable accelerators for improving the dyeing process

Method used

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  • Dyeing promoter and preparation thereof, and dyeing method
  • Dyeing promoter and preparation thereof, and dyeing method
  • Dyeing promoter and preparation thereof, and dyeing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Dyeing of pure cotton herringbone denim fabric with reactive dyes

[0083] (1), denim fabric preparation:

[0084] Specifications: 10×10 / 72×44;

[0085] Weight: 10OZ;

[0086] Width: 58-60 inches;

[0087] Composition: 100% Cotton.

[0088] (2), the synthesis of dyeing accelerator:

[0089] Under the condition of stirring at room temperature, respectively add 1 molar mass part m-phenylhydroxymethyltrimethylammonium hydrochloride (purchased from Sigma-Aldrich, analytically pure) and 1 molar mass part hydroxypropyltrimethylammonium hydrochloride placed in the reactor Salt (purchased from Sigma-Aldrich, analytically pure) 1 molar mass part of 40% NaOH aqueous solution was added dropwise to the two trimethylammonium hydrochloride salts. After the dropwise addition was completed, the reaction was continued for 30 to 60 minutes. The NaCl generated in the reaction was filtered off, and the pH value of the solution was adjusted to 6.5-7 with hydrochloric acid, there...

Embodiment 2

[0103] Dip dyed stretch cotton denim fabric

[0104] (1), denim fabric preparation:

[0105] Specifications: 7×16 / 70D;

[0106] Width: 50-52 inches;

[0107] Weight: 11.5OZ;

[0108] Composition: 97% Cotton + 3% Elastic Spandex.

[0109] The synthetic method of denim fabric dyeing accelerator is as follows:

[0110] (2), the synthesis of dyeing accelerator:

[0111] Under stirring at room temperature, 1 mole of NaOH aqueous solution with a concentration of 40% was added dropwise to each 1 mole mass portion of p-phenylhydroxymethyltrimethylammonium hydrochloride (purchased from Sigma-Aldrich, analytically pure) placed in two reactors. parts by mass. Continue the reaction for 30 to 60 minutes after the dropwise addition is completed. The NaCl generated in the reaction was filtered off, and the pH value of the solution was adjusted to 6.5-7 with hydrochloric acid to obtain 2 parts of the same epoxy derivative.

[0112] Then, under stirring at room temperature, add d...

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Abstract

The present invention relates to a dyeing promoter comprising a double-active quaternary ammonium salt compound having an ethyl sulfone group and a monochlorotriazine group, wherein the compound has the structural formula (I) as follows: FORMULA, wherein M is H or an alkali metal ion, preferably Na or K; Y each independently represents H, a halogen or a linear or branched C1-12 alkyl group, preferably H; X each independently represents a halogen, preferably Cl or F; and R1 and R2 represent a same quaternary ammonium group or the different quaternary ammonium groups selected from: FORMULAS, wherein R3 each independently represents the linear or branched C1-12 alkyl group, preferably a methyl group, an ethyl group or a propyl group, R4 represents a linear or branched C1-12 alkylene group, preferably an ethylene group, a propylidene group or a butylidene group, and R0 represents one or more substituents selected from the group consisting of halogens or C1-8 alkyl groups optionally located on a benzene ring. In addition, the invention also relates to a method for preparing the compound, the method including a dyeing promoter composition containing the compound and a dyeing method, in particular to a method for dyeing jean grey cloth.

Description

technical field [0001] This application relates to the printing and dyeing technology of the textile industry, more specifically to a novel dyeing accelerator, its preparation method and dyeing method, especially to the dyeing method of fiber fabrics such as denim gray cloth. Background technique [0002] Fiber fabrics are widely used in the textile industry and clothing fields. In addition to the traditional and common cotton fibers, various natural fibers such as hemp, ramie, linen, silk, wool, etc. are blended with cotton, regenerated fibers such as viscose, tencel, and modal, or synthetic fibers such as polyester and nylon , acrylic, spandex, etc. have been widely used. [0003] In order to provide rich color and beauty to garments and fabrics, fabrics are dyed with dyestuffs. These dyes include, for example, various reactive dyes or indigo. Reactive dyes are anionic dyes, also known as reactive dyes, whose molecules contain chemically active groups that can react wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/66D06P1/38D06P1/22
CPCD06P1/66D06P1/38D06P1/228
Inventor 钟博文
Owner NEWTECH TEXTILE TECH DEV SHANGHAI