A kind of cotton fabric non-aqueous dyeing process and reactive dye solution encapsulated by reverse micelles

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

Active Publication Date: 2018-01-05
THE HONG KONG POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of cotton fabric non-aqueous dyeing process and reactive dye solution encapsulated by reverse micelles
  • A kind of cotton fabric non-aqueous dyeing process and reactive dye solution encapsulated by reverse micelles
  • A kind of cotton fabric non-aqueous dyeing process and reactive dye solution encapsulated by reverse micelles

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Experimental program
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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 Linear C 13 Alkyl, n is 12. At room temperature, 0.105 mol of n-octanol and 0.015 mol of non-ionic surfactant are pre-mixed in a beaker by stirring. The ratio is 7:1. After mixing, they are dissolved in 100ml of n-octane to form a total of 100ml. The reverse micelle solution is divided into 50ml of the first reverse micelle solution and 50ml of the second reverse micelle solution; a certain amount of Levafix Red CA reactive dye is dissolved in a very small amount of 4ml of water to form a concentration of 3.9789mmol / L Slowly inject the reactive dye solution into the first reverse micelle solution. After injecting, stir vigorously at 600 rpm for 10 minutes, and then the solution clarifies to obtain the reactive dye solution encapsulated by reverse micelles; sample 1g of cotton fabric Immerse in the reactive dye solution encapsulated by rev...

Embodiment 2

[0055] In this embodiment, in the molecular formula of the nonionic surfactant, R 1 Is C 2 Type alkyl, R 2 Linear C 12 Alkyl, n is 10. At room temperature, 0.105 mol of n-octanol and 0.0175 mol of non-ionic surfactant are pre-mixed in a beaker by stirring. The ratio is 6:1. After mixing, they are dissolved in 100 ml of n-octane to form 100 ml of total The reverse micelle solution is divided into 50ml of the first reverse micelle solution and 50ml of the second reverse micelle solution; a certain amount of Levafix Red CA reactive dye is dissolved in a small amount of 2ml of water to form a reactive dye with a concentration of 3mmol / L Solution, slowly inject the reactive dye solution into the first reverse micelle solution. After the injection, stir vigorously at 800 rpm for 15 minutes and then the solution clarifies to obtain the reactive dye solution encapsulated by reverse micelles; bath a sample of 1.25g cotton fabric The ratio of 1:40 is immersed in the reactive dye solution...

Embodiment 3

[0057] In this embodiment, in the molecular formula of the nonionic surfactant, R 1 Is C 3 Type alkyl, R 2 C for the branch 10 Alkyl, n is 8. At room temperature, premix 0.0525 mol of n-octanol and 0.0065625 mol of non-ionic surfactant in a beaker by stirring. The ratio is 8:1. After mixing, dissolve in 50ml of n-octane to form 50ml of first A reverse micelle solution; prepare 50ml of the second reverse micelle solution in the same way as above; dissolve a certain amount of Levafix Red CA reactive dye in a very small amount of 4ml of water to form a reactive dye solution with a concentration of 5mmol / L. The dye solution was slowly injected into the first reverse micelle solution. After injection, the solution was clarified after being vigorously stirred at 1000 rpm for 15 minutes to obtain the reactive dye solution encapsulated in reverse micelles; the 2g cotton fabric sample was set to a bath ratio of 1:25 The ratio is immersed in the reactive dye solution encapsulated in reve...

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Abstract

The invention relates to a non-aqueous dyeing process for cotton fabrics and a reactive dye solution encapsulated by reverse micelles, in particular to a method for non-aqueous dyeing of cotton fabrics using reactive dyes encapsulated by non-ionic surfactants and reverse micelles , the dyeing process of the present invention has low cost, good dyeing quality, easy and safe operation; good dyeing effect can be achieved without harsh process conditions in the dyeing process, and energy consumption is saved; non-aqueous dyeing of cotton fabrics with reactive dyes During the dyeing process, it is basically completed at room temperature to medium temperature. Reactive dyes are not easy to degrade, so reactive dyes can be recycled and reused, and after the final non-aqueous dyeing process is completed, the dyed cotton fabric is not easy to fade Or the phenomenon of lightening of color intensity; by using organic solvents as media, the amount of water can be reduced, thereby reducing the amount of colored wastewater to be treated, and colored wastewater and organic solvents can be effectively recycled to reduce environmental pollution.

Description

Technical field [0001] The invention relates to the technical field of textiles, in particular to a cotton fabric non-aqueous dyeing process and a reactive dye solution encapsulated by reverse micelles. Background technique [0002] The dyeing process of textiles is usually carried out in an aqueous medium, but the water-based dyeing method and subsequent washing process will produce undesirable environmental pollution, such as the discharge of chemical pollutants and a large amount of colored wastewater. The new concept of avoiding the use of excessive water in dyeing technology is under evaluation, and dyeing technology that avoids the use of water as a solvent is also under study in recent years. Among the existing dyeing techniques, reverse micelle encapsulated dyes in organic solvents have attracted attention as an alternative dyeing process, which can be used to reduce the amount of water and also contribute to uniform dyeing. However, The process of dyeing natural fibers ...

Claims

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Application Information

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Patent Type & Authority Patents(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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