Cotton fabric non-aqueous dyeing process and reverse micelle encapsulated reactive dye liquid

A reactive dye and process technology, applied in the textile field, can solve the problems of unstable "pool" and poor dyeing effect, achieve good dyeing effect, easy and safe operation, and reduce water consumption.

Active Publication Date: 2016-03-30
THE HONG KONG POLYTECHNIC UNIV
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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 provide a kind of non-aqueous dyeing process of cotton fabric and reactive dye solution encapsulated by reverse micelles, which solves the problem of reactive dyes encapsulated by reverse micellar systems composed of ionic surfactants in the prior art. Pool" is unstable and the dyeing effect is poor

Method used

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  • Cotton fabric non-aqueous dyeing process and reverse micelle encapsulated reactive dye liquid
  • Cotton fabric non-aqueous dyeing process and reverse micelle encapsulated reactive dye liquid
  • Cotton fabric non-aqueous dyeing process and reverse micelle encapsulated reactive dye liquid

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Effect test

Embodiment 1

[0047] In this embodiment, the nonionic surfactant is polyethylene glycol-12-tridecyl ether, that is, R in the molecular formula 1 for H, R 2 for linear C 13 Alkyl, n is 12. At room temperature, pre-mix 0.105mol of n-octanol and 0.015mol of non-ionic surfactant in a beaker by stirring, the ratio is 7:1, and dissolve in 100ml of n-octane after mixing to form 100ml total The reverse micelle solution of 50ml is equally divided into the first reverse micelle solution of 50ml and the second reverse micelle solution of 50ml; a certain amount of LevafixRedCA reactive dye is dissolved in a very small amount of 4ml of water to form a concentration of 3.9789mmol / L active Dye solution, the reactive dye solution is slowly injected into the first reverse micelle solution, after injection, the solution is clarified after vigorously stirring at 600rpm for 10min, and the reactive dye solution encapsulated by reverse micelles is obtained; Immerse in the reverse micelles encapsulated reactiv...

Embodiment 2

[0055] In the present embodiment, in the molecular formula of the nonionic surfactant, R 1 for C 2 type alkyl, R 2 for linear C 12 Alkyl, n is 10. At room temperature, premix 0.105mol of n-octanol and 0.0175mol of non-ionic surfactant in a beaker by stirring, the ratio is 6:1, and dissolve in 100ml of n-octane after mixing to form 100ml of total The reverse micelle solution is divided into the first reverse micelle solution of 50ml and the second reverse micelle solution of 50ml on average; A certain amount of LevafixRedCA reactive dye is dissolved in a small amount of 2ml of water to form a concentration of reactive dye solution of 3mmol / L, The reactive dye solution is slowly injected into the first reverse micellar solution, and after injection, the solution is clarified after being vigorously stirred at 800rpm for 15 minutes to obtain the reactive dye solution encapsulated by reverse micelles; the sample of 1.25g cotton fabric is The ratio of 1:40 is immersed in the rea...

Embodiment 3

[0057] In the present embodiment, in the molecular formula of the nonionic surfactant, R 1 for C 3 type alkyl, R 2 for branch C 10 Alkyl, n is 8. At room temperature, premix 0.0525mol of n-octanol and 0.0065625mol of non-ionic surfactant in a beaker by stirring, the ratio is 8:1, and dissolve in 50ml of n-octane after mixing to form 50ml of the first One reverse micelle solution; prepare the second reverse micelle solution of 50ml by the same method as above; a certain amount of LevafixRedCA reactive dye is dissolved in a very small amount of 4ml water to form a concentration of reactive dye solution that is 5mmol / L, and the reactive dye solution Slowly inject into the first reverse micelles solution, after injection, vigorously stir at 1000rpm for 15 minutes, and then the solution is clarified to obtain a reactive dye solution encapsulated by reverse micelles; 2g of cotton fabric samples are mixed with a liquor ratio of 1:25 Submerged in the reactive dye solution encapsul...

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Abstract

The invention relates to a cotton fabric non-aqueous dyeing process and a reverse micelle encapsulated reactive dye liquid, and concretely relates to a method for carrying out non-aqueous dyeing on a cotton fabric by using the nonionic surfactant reverse micelle encapsulated reactive dye liquid. The dyeing method has the advantages of low cost, good dyeing quality, and simple and safe operation; a good dyeing effect can be reached in the dyeing process without strict process conditions, so the energy consumption is saved; the non-aqueous dyeing process of the cotton fabric by the reactive dye is basically completed at normal temperature to a medium temperature, and the reactive dye is difficult to degrade, so the reactive dye can be recovered, and the color of the dyed cotton fabric obtained after the non-aqueous dyeing process is completed difficultly fades; and use an organic solvent as a medium reduces the water in order to reduce treatment of colored wastewater, and the colored wastewater and the organic solvent can be effectively recovered, so environment pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a cotton fabric non-aqueous dyeing process and reactive dye liquid encapsulated by reverse micelles. Background technique [0002] The dyeing process of textiles is usually carried out in water-based medium, but the water-based dyeing method and subsequent washing process will produce adverse environmental pollution, such as the discharge of chemical pollutants and a large amount of colored wastewater. New concepts that avoid the use of excess water in dyeing techniques are being evaluated, and dyeing techniques that avoid the use of water as a solvent have also been studied in recent years. Among the existing dyeing techniques, reversemicelle encapsulated dyes (reversemicelleencapsulatedddyes) in organic solvents have attracted attention as an alternative dyeing process, which can be used to reduce water consumption while also contributing to uniform dyeing. However, natural fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/66D06P1/38D06P1/613D06P5/10C09B67/22C09B67/26
Inventor 简志伟王燕茗
Owner THE HONG KONG POLYTECHNIC UNIV
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