CN103103751A - Method for resisting bacteria, preventing crease and finishing silk fabric in biological enzymatic way - Google Patents

Abstract

The invention discloses a method for resisting bacteria, preventing crease and finishing a silk fabric in a biological enzymatic way. The method comprises the following technological steps: 1) preprocessing a degummed real-silk fabric in a silk fabric selective expansion way for 1 to 2 hours by taking ethylene diamine tetraacetic acid, urea and penetrant, and then fully cleaning; 2) by taking tyrosinase and the penetrant, dipping the processed sample in the tyrosinase solution for 3 to 26 hours, wherein the temperature is controlled to 25 to 45 DEG C, the pH (Potential Of Hydrogen) is controlled to 6.5 to 8.2; 3) adding chitosan and the penetrant in the mixed solution, and processing for 3 to 26 hours, wherein the temperature is controlled to 25 to 45 DEG C, and the pH is controlled to 6.5 to 8.2; 4) adding trichloroacetic acid to the mixed solution to inactivate the protease in the enzyme solution; and 5) fully washing the fabric subjected to enzyme deactivation through hot water and cold water, and then drying at low temperature. By adopting the method, the real-silk fabric is higher in bacteria resistance, higher in crease recovery performance and higher in dyeing performance, solves the technical problems of the conventional chemical method that the energy consumption is high and the fibers are easily damaged during finishing, and improves the quality of real-silk products.

Description

A kind of biological enzyme Anti-bacterial and Crease method of silk fabrics

Technical field

The present invention relates to the method for sorting of silk fabrics, be specifically related to a kind of biological enzyme Anti-bacterial and Crease method of silk fabrics.

Background technology

At present, silk fabrics chemical antibacterial finishing agent commonly used comprises Inorganic Copper (silver) ionic species and organic quaternary ammonium salt class etc., crease proofing agent has acid amides-formaldehydes and polybasic carboxylic acid class etc., and the technique of employing bakes mainly with padding finishing liquid and high temperature the method that combines and carries out.These finishing agents are when giving silk fabrics certain antibiotic and wrinkle-proof effect, also the part exist be combined with silk fiber insecure, easily discharge from fiber surface and migrate to body skin surface, or have that to bake middle fiber strength impaired, arrange the drawbacks such as discharging of waste liquid contaminated environment.Shitosan and derivative thereof are the products after the chitin deacetylase base, and as the natural finishing agent of alkaline glycosaminoglycan class, shitosan not only has broad spectrum antibacterial, can also be combined with silk fiber simultaneously, improve the wrinkle resistance of silk fabrics.Use at present shitosan and carry out the silk fabrics arrangement take chemical method as main, namely bake at high temperature by means of chemical cross-linking agents such as polybasic carboxylic acid classes and under condition, it is combined with silk fiber, exist the common some shortcomings part of above-mentioned chemical finishing in processing.

Summary of the invention

The object of the present invention is to provide a kind of biological enzyme Anti-bacterial and Crease method of silk fabrics, make real silk fabric have higher antibiotic property and crease recovery, dyeability also gets a promotion, solve the traditional chemical method arrange in the technical problem of high, the fiber easy damaged of energy consumption, improved the true silk products quality.

For achieving the above object, the invention provides a kind of biological enzyme Anti-bacterial and Crease method of silk fabrics, comprise following processing step:

1) get disodium ethylene diamine tetraacetate 0.5-1.5g/L, urea 0.5-1.5g/L, bleeding agent 10-20g/L carries out the selective swelling pretreatment of silk fabrics to the rear real silk fabric that comes unstuck, and temperature is controlled at 20-50 ℃, processes fully washing 1-2 hour;

2) get tyrosinase 5-90U/g, bleeding agent 10-20g/L, with the sample impregnation process in tyrosinase solution after processing, temperature is controlled at 25-45 ℃, and pH is controlled at 6.5-8.2, and bath raio 1: 5-80 processed 3-26 hour;

3) add shitosan 0.3-5.2g/L in mixed liquor, bleeding agent 10-20g/L, temperature is controlled at 25-45 ℃, and pH is controlled at 6.5-8.2, processes 3-26 hour;

4) add the 0.3-5.2mol/L trichloroacetic acid to make protease inactivation in enzyme liquid in mixed solution;

5) go out after enzyme fabric respectively with hot water and cold water fully wash, low temperature drying then.

Advantage of the present invention and beneficial effect are: a kind of biological enzyme Anti-bacterial and Crease method that silk fabrics is provided, make real silk fabric have higher antibiotic property and crease recovery, dyeability also gets a promotion, solve the traditional chemical method arrange in the technical problem of high, the fiber easy damaged of energy consumption, improved the true silk products quality.

The specific embodiment

Below in conjunction with specific embodiment, the invention will be further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.

Embodiment 1

A kind of biological enzyme Anti-bacterial and Crease method of silk fabrics comprises following processing step:

1) get disodium ethylene diamine tetraacetate 0.9g/L, urea 0.9g/L, bleeding agent 15g/L carries out the selective swelling pretreatment of silk fabrics to the rear real silk fabric that comes unstuck, and temperature is controlled at 30 ℃, processes fully washing 1.5 hours;

2) get tyrosinase 60U/g, bleeding agent 15g/L, with the sample impregnation process in tyrosinase solution after processing, temperature is controlled at 30 ℃, and pH is controlled at 7.2, and bath raio 1: 50 was processed 16 hours;

3) add shitosan 2.4g/L in mixed liquor, bleeding agent 15g/L, temperature is controlled at 30 ℃, and pH is controlled at 7.2, processes 16 hours;

4) add the 2.4mol/L trichloroacetic acid to make protease inactivation in enzyme liquid in mixed solution;

5) go out after enzyme fabric respectively with hot water and cold water fully wash, low temperature drying then.

Embodiment 2

A kind of biological enzyme Anti-bacterial and Crease method of silk fabrics comprises following processing step:

1) get disodium ethylene diamine tetraacetate 0.5g/L, urea 0.5g/L, bleeding agent 10g/L carries out the selective swelling pretreatment of silk fabrics to the rear real silk fabric that comes unstuck, and temperature is controlled at 20 ℃, processes fully washing 1 hour;

2) get tyrosinase 5U/g, bleeding agent 10g/L, with the sample impregnation process in tyrosinase solution after processing, temperature is controlled at 25 ℃, and pH is controlled at 6.5, and bath raio 1: 5 was processed 3 hours;

3) add shitosan 0.3g/L in mixed liquor, bleeding agent 10g/L, temperature is controlled at 25 ℃, and pH is controlled at 6.5, processes 3 hours;

4) add the 0.3mol/L trichloroacetic acid to make protease inactivation in enzyme liquid in mixed solution;

5) go out after enzyme fabric respectively with hot water and cold water fully wash, low temperature drying then.

Embodiment 3

A kind of biological enzyme Anti-bacterial and Crease method of silk fabrics comprises following processing step:

1) get disodium ethylene diamine tetraacetate 1.5g/L, urea 1.5g/L, bleeding agent 20g/L carries out the selective swelling pretreatment of silk fabrics to the rear real silk fabric that comes unstuck, and temperature is controlled at 50 ℃, processes fully washing 2 hours;

2) get tyrosinase 90U/g, bleeding agent 20g/L, with the sample impregnation process in tyrosinase solution after processing, temperature is controlled at 45 ℃, and pH is controlled at 8.2, and bath raio 1: 80 was processed 26 hours;

3) add shitosan 5.2g/L in mixed liquor, bleeding agent 20g/L, temperature is controlled at 45 ℃, and pH is controlled at 8.2, processes 26 hours;

4) add the 5.2mol/L trichloroacetic acid to make protease inactivation in enzyme liquid in mixed solution;

5) go out after enzyme fabric respectively with hot water and cold water fully wash, low temperature drying then.

 

The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (1)

1. the biological enzyme Anti-bacterial and Crease method of a silk fabrics, is characterized in that, comprises following processing step:

1) get disodium ethylene diamine tetraacetate 0.5-1.5g/L, urea 0.5-1.5g/L, bleeding agent 10-20g/L carries out the selective swelling pretreatment of silk fabrics to the rear real silk fabric that comes unstuck, and temperature is controlled at 20-50 ℃, processes fully washing 1-2 hour;

2) get tyrosinase 5-90U/g, bleeding agent 10-20g/L, with the sample impregnation process in tyrosinase solution after processing, temperature is controlled at 25-45 ℃, and pH is controlled at 6.5-8.2, and bath raio 1: 5-80 processed 3-26 hour;

3) add shitosan 0.3-5.2g/L in mixed liquor, bleeding agent 10-20g/L, temperature is controlled at 25-45 ℃, and pH is controlled at 6.5-8.2, processes 3-26 hour;

4) add the 0.3-5.2mol/L trichloroacetic acid to make protease inactivation in enzyme liquid in mixed solution;

5) go out after enzyme fabric respectively with hot water and cold water fully wash, low temperature drying then.