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Dyeing technology for cotton cloth

A technology, a technology of cotton cloth, applied in the field of cotton dyeing technology, can solve the problems of unsatisfactory cotton cloth, easy color falling off, low color fastness, etc., and achieve the effect of improving color fastness, improving color fastness, and improving binding ability

Inactive Publication Date: 2019-11-29
HANGZHOU XINSHENG PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after the cotton cloth is dyed, the color fastness is not high, and the color after dyeing is easy to fall off, so that the cotton cloth cannot meet people's needs.

Method used

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  • Dyeing technology for cotton cloth
  • Dyeing technology for cotton cloth
  • Dyeing technology for cotton cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] refer to figure 1, a dyeing process for cotton cloth, the following steps are carried out on the cotton grey cloth:

[0043] S1: singeing the grey cloth. The grey cloth is conveyed to the singeing machine for singeing, and the fluff and thread ends on the surface of the grey cloth are removed, so that the surface of the grey cloth is smooth and clean, and the dyeing defects caused by the existence of the fluff are prevented during dyeing.

[0044] S2: Desizing. Desizing the singed grey fabric; first rinse the grey fabric with clean water, and after rinsing, transport the grey fabric to a desizing tank containing desizing solution for immersion for 90 minutes, and control the temperature of the desizing solution at 65°C during dipping, and the temperature of the desizing solution is 65°C. Each chemical composition is calculated in parts by weight: 45 parts of biological enzymes, 20 parts of scouring agents and 2.5 parts of penetrating agent, wherein the chemical compos...

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PUM

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Abstract

The invention relates to the technical field of textile dyeing and finishing, and discloses a dyeing technology for a cotton cloth. The method for treating a cotton cloth gray fabric comprises the following steps of S1, performing singeing on the gray fabric; S2, performing resizing; S3, performing bleaching; S4, performing washing; S5, performing dyeing, wherein the gray fabric obtained after treatment in S4 is dyed, dyes adopted during dyeing are prepared from, by weight, 35-50 parts of active dyes, 7-10 parts of sodium carbonate, 3.5-5 parts of anhydrous sodium sulphate, 20-30 parts of a leveling agent, 5-8 parts of acetic acid, 11-23 parts of magnesium sodium silicate, 7-13 parts of imidazolidinyl urea, 2-5 parts of copper chloride and 80-110 parts of water; S6, performing washing; S7,performing color fixing; S8, performing dehydrating; S9, performing sizing, wherein after sizing in S9 is performed, the dyed cotton cloth is obtained. By adding magnesium sodium silicate and imidazolidinyl urea into dyes, active dyes can be promoted to continuously permeate cotton fiber, the imidazolidinyl urea can improve the combining capability of the active dyes and the cotton fiber, and finally the color fastness of the dyed cotton cloth is improved.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, more specifically, it relates to a dyeing process for cotton cloth. Background technique [0002] Pure cotton fabric is made of cotton as raw material and produced by textile technology, which has the characteristics of moisture absorption, moisturizing, heat resistance, alkali resistance, and hygiene. Cotton cloth is the general term for all kinds of cotton textiles. Cotton cloth is mostly used to make fashion, casual wear, underwear and shirts. Its advantages are easy to keep warm, soft and next to the skin, hygroscopicity, and good air permeability. [0003] In order to meet people's needs, it is usually necessary to dye cotton cloth into different colors, so that it can be used in different situations. Cotton dyeing must go through four processes: pre-treatment, dyeing, finishing, and finished product inspection. After the above-mentioned processes, the cotton can be d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/66D06P1/38D06P1/613D06P1/649D06P1/673D06P5/04D06L1/14D06L4/12D06L4/13D06L4/23
CPCD06P3/66D06P1/38D06P1/67383D06P1/6491D06P1/6135D06P1/6133D06P5/04D06L1/14D06L4/13D06L4/23D06L4/12D06P5/06
Inventor 吴绍明李国信
Owner HANGZHOU XINSHENG PRINTING & DYEING
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