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Surface modification method for wool

A surface modification and surfactant technology, applied in the field of wool modification, can solve the problems of limited wool modification, no wool modification, insufficient wool keratin effect, etc., and achieve the effect of no AOX emission and residue.

Inactive Publication Date: 2014-04-09
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the current protease modification method of wool, the effect of protease on wool keratin is not strong enough. Chlorination or other oxidation treatments are required before protease treatment, so that protease can exert its digestion effect on wool scale layer keratin; ultraviolet rays Irradiation Siroflash technology is a continuous irradiation directly using UVC lamps, which has a very limited modification effect on wool and can only slightly improve the dyeing performance of wool
[0004] At present, there is no use of nano-TiO 2 The technology or related patents for the modification of wool by ultraviolet irradiation photocatalysis of particles attached to wool or combined with protease treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, a method for surface modification of wool, using wool fiber (i.e. wool loose fiber) as wool to be treated, the following steps are carried out successively:

[0042] 1) Add anatase TiO to the dispersant MF aqueous solution (as a solvent) with a concentration of 1.0g / L 2 Nanoparticles, anatase TiO 2 Aqueous dispersion of nanoparticles; the anatase TiO 2 Anatase TiO in Nanoparticle Aqueous Dispersion 2 The concentration of nanoparticles was 10 g / L.

[0043] According to every 1g wool fiber corresponds to 1ml titanium ore type TiO 2 The ratio of the nanoparticle aqueous dispersion; the above-mentioned anatase TiO2 The nanoparticle aqueous dispersion is evenly sprayed on the wool fiber; the wool fiber is evenly mixed during the spraying process; thus the anatase TiO 2 The nanoparticles are evenly attached to the wool fiber surface. At this time, the amount of liquid carried by the wool fiber is about 100% (that is, the weight of the wool fiber has doubled...

Embodiment 2

[0050] Embodiment 2, a method for surface modification of wool, using wool fiber (wool loose fiber) as wool to be treated, the following steps are carried out successively:

[0051] 1) Add anatase TiO to the dispersant HT-5000 aqueous solution with a concentration of 1.5g / L 2 Nanoparticles, anatase TiO 2 Aqueous dispersion of nanoparticles, the anatase TiO 2 Anatase TiO in Nanoparticle Aqueous Dispersion 2 The concentration of nanoparticles was 8 g / L.

[0052] 30ml of anatase TiO per 1g of wool fiber 2 Ratio of aqueous dispersion of nanoparticles; pour anatase TiO in a large tank 2 Aqueous dispersion of nanoparticles, in which the wool fiber is soaked; soaking time is 30 minutes; the wool fiber is slightly evenly stirred during the soaking process; after soaking, the excess TiO is squeezed out with a paddle car 2 Nanoparticle dispersion (i.e. anatase TiO 2 nanoparticle aqueous dispersion), so that the amount of liquid carried by the wool fiber is 100% (that is, the weigh...

Embodiment 3

[0057] Embodiment 3, a method for surface modification of wool, the following steps are carried out after step 3) of embodiment 1:

[0058] Add 3% silk fibroinase (the silk fibroin enzyme Savinase 4.0T from Novozymes) to the water to obtain an aqueous solution of silk fibroin enzyme, the weight of which is about 3% by weight of the original wool fiber to be treated. 2 to 4 times the weight of the wool fiber as the product to be treated;

[0059] Put the wool fiber obtained in step 3) into the above-mentioned silk fibroin aqueous solution, adjust the pH to 8.5 with sodium carbonate, and soak at 45°C for 50 minutes;

[0060] Then carry out inactivation, specifically: adjust the pH to 4.5 with formic acid or acetic acid, and treat at 80°C for 10 minutes, so as to inactivate silk protease, and then wash with water for 2 times; The wool fiber of the treated product is 10 to 100 times, for example, 50 times; after each washing, conventional dehydration treatment is carried out. At...

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Abstract

The invention discloses a surface modification method for wool. In the surface modification method for the wool, wool bulk fibers or wool wool tops are used as wool products to be processed and the following steps are sequentially carried out: 1, the wool products to be processed are processed by adopting anatase TiO2 nano particle waterborne dispersing agent; 2, the wool products to be processed, which are obtained in the step 1, are irradiated for 1 to 25 hours by ultraviolet rays with the wavelength range of 250 to 400nm; 3, the wool products to be processed, which are obtained in the step 2, are washed for 20 to 60 minutes by aqueous solution of a surfactant, then are dehydrated and are washed for 2 to 4 times with clear water; and 4, drying the wool products to be processed, which are obtained in the step 3. After the method disclosed by the invention is adopted, a scale structure of the surface of the wool can be partly corroded and damaged or be totally stripped, so that the surface of the wool shows a smooth form.

Description

technical field [0001] The invention relates to a method for modifying wool, in particular to a method for corroding or removing scale structures on the surface of wool fibers. Background technique [0002] Wool is a high-grade textile fiber material commonly used in the manufacture of textile products such as suits, fashion and knitted sweaters. However, the surface of wool has a special structure - the scale layer, which will cause felting of wool products during use, change the size and shape of the garment, and affect the appearance and performance of the garment; at the same time, the scale layer structure Tight, which prevents the dye from penetrating and diffusing into the fiber during the dyeing process, affecting the dyeing and printing performance of wool, etc.; or, the scale layer structure makes the appearance of wool products not bright enough, not bright enough, not smooth and soft enough, etc. Therefore, in the processing of wool textiles, chlorination treat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M10/06D06M16/00D06L1/12D06M101/12
Inventor 陈维国牟水法张金莲崔志华陈海相朱磊沈建军
Owner ZHEJIANG SCI-TECH UNIV
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