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Antifelting treatment method for machine washable wool fabric

An anti-felting and wool-washing technology, applied in the field of textile fabrics, can solve the problems of strong fabric damage, failure to meet the machine washable standard, and potential threats, so as to reduce the amount of use, improve the strong damage of wool fibers, and improve the original effect of style

Inactive Publication Date: 2019-05-10
JIANGYIN XINGWU WOOL FABRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adsorbable organic halide AOX (Absorbable Organic Halogen) produced in the traditional chlorination anti-felting treatment process has the disadvantages of polluting the environment and potentially threatening human health
Protease treatment is a chlorine-free treatment method for wool that has been studied more at present. Protease can hydrolyze part of the peptide bonds in the fiber scale layer, improve the solubility of the scale layer, and thereby partially peel off the scale layer; The anti-felting finishing of wool fabrics with low concentration of protease cannot meet the machine washable standard, and the concentration is too high and it will seriously damage the strength of the fabric

Method used

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  • Antifelting treatment method for machine washable wool fabric
  • Antifelting treatment method for machine washable wool fabric

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The felting finishing method of the wool fabric of embodiment 1 comprises the steps:

[0027] S1: Configure the pretreatment solution, add the active agent 2-mercaptoethanol and subtilisin into the pretreatment pool filled with a certain quality of water, wherein the concentration of 2-mercaptoethanol is 0.5g / L, and the amount of subtilisin added is 3% of the weight of the fabric, add sodium carbonate to adjust the pH to 10, control the temperature at 50-60°C, and stir for 20 minutes to obtain the pretreatment solution;

[0028]S2: Pretreatment, put the dry wool fabric to be finished in the pretreatment solution, the bath ratio is 1:30, pretreat for 20 minutes at 50-60°C and ultrasonic conditions, heat up to 75-85°C to extinguish the fire with enzyme, put Take out the wool fabric, rinse it with distilled water, and dry it at a low temperature of 60-80°C;

[0029] S3: Prepare a silicone emulsion, add silicone to the emulsifier at room temperature and at a speed of 1500-...

Embodiment 2

[0034] The difference between embodiment 2 and embodiment 1 is that the concentration of active agent 2-mercaptoethanol is 5g / L in step S1, the protease is SAV protease, and the addition amount of SAV protease is 2% of the weight of the woolen fabric, and sodium bicarbonate is added to adjust the pH Be 8; Bath ratio is 1: 60 in the step S2; The emulsifier add-on is 7% of the woolen fabric weight in the step S3, and the organosilicon add-on is 7% of the woolen fabric weight; Add sodium bicarbonate to regulate PH in the step S4 8. Among them, the Japanese Shinko vacuum silicone oil HIVAC-F5 is added in an amount of 7% of the weight of the wool fabric.

Embodiment 3

[0036] The difference between Example 3 and Example 1 is that the protease added in step S1 is Maxacal L protease, sodium phosphate is added to adjust the pH to 9, and the amount of soft and slippery block copolymerized silicone oil K-780 for cotton in step S3 is the weight of wool fabric 5%, the emulsifier is a compound of sorbitan fatty acid ester and sorbitan monooleate polyoxyethylene ether, and the mass ratio of the two is 1:3; the ultrasonic frequency in steps S2 and S5 is 30kHz, power 100W; the concentration of water-based polyurethane in the anti-felting finishing solution is 60g / L.

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Abstract

The invention discloses an antifelting treatment method for a machine washable wool fabric. A way that protease pretreatment is combined with organic silicon modified waterborne polyurethane nonshrinktreatment is adopted, wherein the effect that a wool fabric fiber is hydrolyzed by a protease is catalyzed in a way that an activating agent is combined with ultrasonic waves in a protease pretreatment process, so that the usage amount of the protease is reduced, and meanwhile, the hydrolysis effect and uniformity of the wool fabric fiber are improved; and the wool fabric fiber is subjected to antifelting treatment by adopting an organic silicon modified waterborne polyurethane antifelting treatment solution in a nonshrink treatment process under the condition of ultrasonic waves, so that theusage amount of polyurethane is effectively reduced, the problems of wool fiber strength damage caused in the protease pretreatment process as well as poor fabric handfeel and yellowing due to antifelting treatment realized by using polyurethane alone are relieved, and both the softness and smoothness of the wool fabric subjected to antifelting treatment approach to those of an original fabric.

Description

technical field [0001] The invention relates to the field of textile fabrics, in particular to an anti-felting finishing method for machine washable wool fabrics. Background technique [0002] Wool has many excellent properties such as good elasticity, strong moisture absorption, good warmth retention, and soft luster. Wool fabrics are noble in style and superior in wearability. However, unfinished wool fabrics will shrink when they are continuously squeezed and rubbed during washing, which will cause changes in the appearance of the fabric, such as shrinkage of the fabric size, hairiness of the woolen surface, and chaotic texture. The continuous accumulation of the above changes will affect the appearance and quality of the fabric. The wearing performance limits the application fields of wool to a certain extent. [0003] Because of the presence of surface scales on the surface of wool fibers, wool has a special directional friction effect, that is, the friction coefficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M15/564D06M10/10D06M101/12
Inventor 吴栋标
Owner JIANGYIN XINGWU WOOL FABRIC TECH
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