Method for increasing dyeing depth of cochineal of cotton fabric

A technology of cochineal and dyeing depth, which is applied in the field of textile dyeing, can solve the problem that cochineal does not dye cotton cloth, and achieve the effects of increasing utilization value, increasing dyeing depth, improving quality and application efficiency

Active Publication Date: 2018-10-09
SHAOXING JIANG HUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: to overcome the problem that cochineal red does not stain cotton cloth in the prior art, provide a kind of modification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1:

[0024] To increase the depth of dyeing of cotton cochineal red, the specific steps are as follows:

[0025] (1) Preparation of bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride: Add 49g of 18% hydrochloric acid to a 250mL four-necked reaction flask, start stirring, and slowly remove the tetrakis with a separatory funnel. Add 29 g of methyl ethylenediamine into a four-necked reaction flask, and control the temperature below 40°C. After the addition of tetramethylethylenediamine, the reaction solution was heated to 60°C, and then 32g of epichlorohydrin was slowly added to the four-necked reaction flask, and the addition was completed after 2.5h, and the temperature was kept at 60°C for 40min. The product is cooled to below 40°C and discharged to obtain bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride.

[0026] (2) Prepare cationic modifier solution: Dissolve the bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dic...

Example Embodiment

[0031] Example 2

[0032] To increase the depth of dyeing of cotton cochineal red, the specific steps are as follows:

[0033] (1) Preparation of bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride: the same as in Example 1.

[0034] (2) Prepare cationic modifier solution: Dissolve the bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride prepared in step (1) in deionized water, fully dissolve and disperse it A cationic modifier solution with a concentration of 30 g / L was prepared.

[0035] (3) Cationic modification of cotton cloth: at room temperature, the cotton cloth is immersed in a cationic modifier solution, the liquid rate of the cotton cloth is 70% after padding, and then dried at 80°C for 8 minutes, after natural cooling, the cotton cloth is prepared Improve the semi-finished product; then, at room temperature, immerse the prepared cotton fabric in an improved semi-finished product of 8g / L sodium hydroxide solution. After dipping, the cotton...

Example Embodiment

[0039] Example 3

[0040] To increase the depth of dyeing of cotton cochineal red, the specific steps are as follows:

[0041] (1) Preparation of bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride: the same as in Example 1.

[0042] (2) Prepare cationic modifier solution: Dissolve the bis(3-chloro-2-hydroxypropyl)tetramethylethylenediammonium dichloride prepared in step (1) in deionized water, fully dissolve and disperse it A cationic modifier solution with a concentration of 20 g / L was prepared.

[0043] (3) Cationic modification of cotton cloth: at room temperature, the cotton cloth is immersed in a cationic modifier solution, the liquid rate of the cotton cloth is 90% after padding, and then dried at 80°C for 8 minutes, after natural cooling, the cotton cloth is prepared Improve the semi-finished product; then, at room temperature, immerse the prepared semi-finished cotton fabric with a 25g / L sodium hydroxide solution. After dipping, the cotton cloth has a liqui...

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PUM

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Abstract

The invention discloses a method for increasing a dyeing depth of cochineal of a cotton fabric and in particular relates to a method for modifying a cotton fabric by using a biquaternary ammonium saltcation modifier to further increase a dyeing depth of cochineal of the cotton fabric. After being modified by using the biquaternary ammonium salt cation modifier, the cotton fabric is grafted with abiquaternary ammonium salt, the modified cotton fabric is dyed with cochineal, and then the dyeing depth of the cochineal in the cotton fabric is increased. By adopting the modification method, a newway is provided for solving the problem that a cotton fabric cannot be dyed with cochineal, meanwhile a new idea is provided for dyeing cotton fabrics with natural dyes, and the method has very wideapplication prospects.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing, in particular to a method for increasing the dyeing depth of cotton cochineal. Background technique [0002] Nowadays, the printing and dyeing industry is facing many problems such as the prohibition of harmful chemical substances, environmental pollution, and low added value of products. Due to the consideration of environmental protection and sustainable development and people's pursuit of ecological textiles and green production technology, the utilization of biomass materials has re-entered people's vision. Cotton and natural dyes have advantages over synthetic fibers and synthetic dyes due to their good biodegradability, biological and environmental compatibility, and antibacterial properties. [0003] However, the dyes currently used in cotton dyeing are synthetic dyes such as reactive dyes and vat dyes. During the use of these dyes, a large amount of salt, alkali and hydrosulfite a...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/66D06P1/673D06P3/60
CPCD06P1/34D06P1/66D06P1/6735D06P3/60
Inventor 刘建平曹红梅张春花
Owner SHAOXING JIANG HUA CHEM
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