Unlock instant, AI-driven research and patent intelligence for your innovation.

Dyeing accelerator, its preparation and dyeing method

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

Active Publication Date: 2022-01-21
NEWTECH TEXTILE TECH DEV SHANGHAI
View PDF6 Cites 0 Cited by
  • 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

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dyeing accelerator, its preparation and dyeing method
  • Dyeing accelerator, its preparation and dyeing method
  • Dyeing accelerator, its preparation 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...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a dyeing accelerator, which comprises a dual active group quaternary ammonium salt compound having an ethylsulfone group and a halo-s-triazine group, the compound has the following structural formula (I) wherein M is H Or an alkali metal ion, preferably Na or K; Y each independently represents H, halogen or linear or branched C 1‑12 An alkyl group, preferably H; X each independently represents a halogen, preferably Cl or F; and R 1 and R 2 Each represents the same or different quaternary ammonium groups selected from: or (R 3 ) 3 N + -R 4 ‑, where R 3 independently of each other represent straight-chain or branched C 1‑12 Alkyl, preferably methyl, ethyl or propyl, R 4 Indicates straight chain or branched C 1‑12 An alkylene group, preferably ethylene, propylene or butylene, and R 0 Indicates that one or more optional members on the benzene ring are selected from halogen or C 1‑8 Alkyl substituents. In addition, the present invention also relates to a method for preparing the compound, a dyeing accelerator composition containing the compound and a dyeing method, especially for dyeing denim gray fabric.

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

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/66D06P1/38D06P1/22
CPCD06P1/66D06P1/38D06P1/228
Inventor 钟博文
Owner NEWTECH TEXTILE TECH DEV SHANGHAI