Flame-retardant wool fabric finishing method

A flame retardant finishing and fabric technology, applied in the direction of enzyme/microbe biochemical treatment, flame retardant fiber, fiber treatment, etc., can solve the problems of easy decrease in whiteness of fiber products, unfavorable industrialization promotion, complicated treatment process, etc., and achieve whiteness The effect of small impact on speed and hand feeling, low loss, and easy operation

Active Publication Date: 2016-05-04
张家港牧羊人服饰有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Chinese invention patent CN200910025310.8 discloses a method for improving the flame retardancy of wool by biological enzymatic method. Using the catalysis of transglutaminase MTG, a class of compounds containing primary amino groups and a large amount of phosphorus are grafted onto wool to improve the flame retardancy of wool. Wool flame retardancy, the technical process includes: pretreatment, MTG-containing phosphorus-containing finishing agent treatment, washing and drying, is the closest prior art of the present invention, and the wool yarn and fabrics processed by the inventive process are resistant Th...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1

[0043] A method for flame-retardant finishing of wool fabrics, comprising the following steps:

[0044] The first step: sodium dihydrogen phosphate solution pretreatment:

[0045] Soak the woolen fabric in an aqueous solution of sodium dihydrogen phosphate with a concentration of 0.1mol / L for 50 minutes, the bath ratio is 1:20, and the soaking temperature is 20°C; pretreatment with the sodium dihydrogen phosphate solution is followed by washing and drying;

[0046] Among them, wash twice with water, and the drying temperature is 50°C;

[0047] The second step: protease pretreatment:

[0048] Soak the woolen fabric in a mixed protein enzyme water solution with a concentration of 1% for 10 minutes, the soaking temperature is 50°C, and the bath ratio is 1:20; after the protease pretreatment, it is washed and dried;

[0049] Wherein, the mixed protease is composed of ficin, pronase and bromelain mixed in a weight ratio of 1:2:1;

[0050] Wash once with water and dry at 70°C;

...

Embodiment 2

[0055] A method for flame-retardant finishing of wool fabrics, comprising the following steps:

[0056] The first step: sodium dihydrogen phosphate solution pretreatment:

[0057] Soak the woolen fabric in 0.15mol / L sodium dihydrogen phosphate aqueous solution for 70 minutes, the bath ratio is 1:20, and the soaking temperature is 25°C; after pretreatment with sodium dihydrogen phosphate solution, wash and dry;

[0058] Among them, washing 3 times, drying temperature is 60 ℃;

[0059] The second step: protease pretreatment:

[0060] Soak the woolen fabric in a 1.5% mixed protein enzyme water solution for 15 minutes, the soaking temperature is 60°C, and the bath ratio is 1:30; after the protease pretreatment, it is washed and dried;

[0061] Wherein, the mixed protease is composed of ficin, pronase and bromelain mixed in a weight ratio of 1:3:2;

[0062] Wash twice with water and dry at 75°C;

[0063] The third step: protease modification treatment:

[0064] Put the wool fa...

Embodiment 3

[0067] A method for flame-retardant finishing of wool fabrics, comprising the following steps:

[0068] The first step: sodium dihydrogen phosphate solution pretreatment:

[0069] Soak the woolen fabric in a 0.1mol / L sodium dihydrogen phosphate aqueous solution for 70 minutes, the bath ratio is 1:20, and the soaking temperature is 20°C; after pretreatment with the sodium dihydrogen phosphate solution, wash and dry;

[0070] Among them, washing 3 times with water, drying temperature is 50 ℃;

[0071] The second step: protease pretreatment:

[0072] Soak the woolen fabric in a mixed protein enzyme water solution with a concentration of 1% for 15 minutes, the soaking temperature is 50°C, and the bath ratio is 1:30; after the protease pretreatment, it is washed and dried;

[0073] Wherein, the mixed protease is composed of ficin, pronase and bromelain mixed in a weight ratio of 1:2:2;

[0074] Wash once with water and dry at 75°C;

[0075] The third step: protease modification...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a flame-retardant wool fabric finishing method. The method includes the steps of adding a monopotassium phosphate aqueous solution to preprocess a wool fabric, dispersing globular proteins slightly cross-linked between fiber cells of the wool fabric, and conducting later-period enzyme processing; conducting enzymolysis preprocessing on the wool fabric through mixed protease obtained by mixing ficus proteinase, pronase and bromelain, making mixed protease adsorbed to surfaces of wool fibers and penetrate through the whole fibers, dispersing mixed protease along the fibers, and conducting hydrolysis, so hydrolysis is continuously conducted in sebum layers of wool fibers, and it is ensured that inner layers of wool fibers are prevented from damage; modifying the wool fabric through alkaline protease. The content of disulfide bonds in the wool fibers is decreased, the content of sulfydryl groups is increased, and the flame retardance of the wool fabric is improved; meanwhile, the washable degree of the wool fabric can be improved, the influences on the whiteness and hand feeling of wool are small, and high economic benefits are achieved.

Description

Technical field: [0001] The invention relates to a method for flame-retardant finishing of wool fabrics, belonging to the field of textile biotechnology. Background technique: [0002] Wool is a keratin-like fibrous protein, containing more cysteine, cystine, methionine, etc., and is a cross-linked polypeptide with a folded molecular structure. Although wool fabric is a combustible fiber, it has high nitrogen content and is extremely hygroscopic, has a high ignition temperature, low combustion heat and low flame temperature, and thus has high flame retardancy. Due to the improvement of the functional properties of the finished wool fabric, additives are added to reduce its flame retardancy, which makes the wool fabric easy to burn and limits the safety and practicality of wool. [0003] The main component of wool is keratin, which is composed of a variety of α-amino acid residues, which can be linked into long-chain helical molecules, which contain carboxyl groups, amine gr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M16/00D06M13/292D06M101/12
CPCD06M13/292D06M16/003D06M2101/12D06M2200/30
Inventor 周继东
Owner 张家港牧羊人服饰有限公司
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