Preparation method of modified anti-felting wool fiber

A wool fiber and anti-felting technology, which is applied in the field of preparation of modified anti-felting wool fiber, can solve the problems of low anti-felting performance of wool fiber, rough and not soft wool fiber surface, etc., achieve uniform passivation degree, improve Antibacterial performance, effect of improving enzymatic hydrolysis efficiency

Inactive Publication Date: 2019-01-04
合肥五凡工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing anti-felting methods are through oxidation or encapsulation of chitosan. The surface of wool fiber treated by simple oxidation method is rough and not soft, and the anti-felting performance of wool fiber treated only with chitosan is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of modified anti-felting wool fiber, the specific preparation process is as follows:

[0021] In the first step, sodium hypochlorite is dissolved in water to form a sodium hypochlorite solution with a concentration of 0.21 mol / L. At the same time, 30 g of potassium permanganate is added to 1L of sodium hypochlorite solution, and the oxidative antibacterial solution is obtained after mixing and dissolving;

[0022] In the second step, add the oxidative antibacterial solution into the stirring tank, heat it in a water bath to 40°C, then pour the wool fiber into the stirring tank, stir and react at a constant temperature for 3 hours, remove the wool fiber and pour it into clean water at 40°C for rinsing three times, then Dry in a drying room at 50°C for later use;

[0023] In the third step, add 23 g of keratinase and 51 g of alkaline protease into 1 kg of deionized water, stir and dissolve, then add a sodium bicarbonate solution with a concentration o...

Embodiment 2

[0027] A preparation method of modified anti-felting wool fiber, the specific preparation process is as follows:

[0028] In the first step, sodium hypochlorite is dissolved in water to form a sodium hypochlorite solution with a concentration of 0.23mol / L, and 35g of potassium permanganate is added to 1L of sodium hypochlorite solution at the same time, and the oxidative antibacterial solution is obtained after mixing and dissolving;

[0029] In the second step, add the oxidative antibacterial solution into the stirring tank, heat it in a water bath to 45°C, then pour the wool fiber into the stirring tank, stir and react at a constant temperature for 4 hours, remove the wool fiber and pour it into clean water at 40°C for rinsing 4 times, then Dry in a drying room at 50°C for later use;

[0030] In the third step, add 26 g of keratinase and 58 g of alkaline protease into 1 kg of deionized water, stir and dissolve, then add a sodium bicarbonate solution with a concentration of 0...

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PUM

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Abstract

The invention discloses a preparation method of modified anti-felting wool fiber. The method particularly comprises the following steps that 1, an oxidative antibacterial solution is prepared; 2, theoxidative antibacterial solution is added into a stirring tank, water bath heating is conducted to reach 40-45 DEG C, and the wool fiber is poured into the stirring tank; 3, compound enzymatic hydrolysate is prepared; 4, the wool fiber processed in step 2 is soaked in the compound enzymatic hydrolysate, and a normal temperature enzymatic hydrolysis reaction is conducted; 5, a chitosan solution isprepared and added into the stirring tank, the wool fiber prepared in step 4 is added, stirring is conducted for 5 h and then fished out, and then air-drying is conducted at normal temperature. Accordingly, the wool fiber is oxidized, protein of the wool fiber is exposed, the exposed protein is subjected to enzymolysis through protease, by means of enzymolysis, negative ions on the surface of thewool fiber are increased, chitosan is adsorbed to the surface of the wool fiber conveniently, and the texture is soft while the wool fiber anti-felting property is improved.

Description

technical field [0001] The invention belongs to the technical field and relates to a preparation method of modified anti-felting wool fiber. Background technique [0002] Wool fiber aggregates or woolen fabrics are repeatedly squeezed and rubbed in soaping solution, acidic solution or other similar aqueous solutions, the fibers are entangled and felt together, the gaps between the fibers become smaller, and gradually become tighter, and cannot be restored to the original state of dispersion. One characteristic is called felt shrinkage. Felting will affect the wearing performance of woolen fabrics, so it is of great significance to perform anti-felting finishing on woolen fabrics. [0003] The existing anti-felting method uses oxidation method or wrapping chitosan, the surface of wool fiber treated by simple oxidation method is rough and not soft, and the anti-felting performance of wool fiber treated only with chitosan is low. Contents of the invention [0004] The objec...

Claims

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Application Information

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IPC IPC(8): D06M15/03D06M13/188D06M11/76D06M16/00D06M11/50D06M11/30D06M101/12
CPCD06M11/30D06M11/50D06M11/76D06M13/188D06M15/03D06M16/00D06M16/003D06M2101/12D06M2200/45D06M2200/50
Inventor 马成玉
Owner 合肥五凡工程设计有限公司
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