CN101565902A - Wool-fabric protease anti-felting method based on weak oxidation and cutinase pretreatment - Google Patents

Wool-fabric protease anti-felting method based on weak oxidation and cutinase pretreatment Download PDF

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CN101565902A
CN101565902A CNA2009100315528A CN200910031552A CN101565902A CN 101565902 A CN101565902 A CN 101565902A CN A2009100315528 A CNA2009100315528 A CN A2009100315528A CN 200910031552 A CN200910031552 A CN 200910031552A CN 101565902 A CN101565902 A CN 101565902A
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protease
wool
fabric
cutinase
felting
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CN101565902B (en
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王平
范雪荣
王强
崔莉
吴敬
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Jiangnan University
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Jiangnan University
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Abstract

一种基于弱氧化和角质酶预处理的羊毛织物蛋白酶防毡缩方法，属于毛纺行业中毛织物染整加工技术领域。旨在解决羊毛氯化法防毡缩环境污染严重，单一蛋白酶法处理织物润湿性差、毡缩率高的缺陷，以达到优化毛织物蛋白酶处理效果的目的。全毛坯布先在氯仿－甲醇、或四氯化碳－甲醇溶液中萃取去除游离油性杂质，再依次采用过氧化氢、角质酶预处理，提高纤维表面的亲水性，再在蛋白酶溶液中进行减量加工，实现羊毛酶减量相结合的生物加工。通过本发明，使得生物法羊毛防毡缩工艺可替代传统氯化法防毡缩的方法，不但可有效提高毛织物的减量率与防毡缩效果，促进织物润湿性的改善，而且能有效提高织物的染色深度，降低减量加工中的纤维损伤，也有利于生态环境保护。The invention discloses a wool fabric protease anti-felting method based on weak oxidation and cutinase pretreatment, which belongs to the technical field of wool fabric dyeing and finishing in the wool spinning industry. The aim is to solve the serious environmental pollution of the wool chlorination anti-felting method, and the defects of poor wettability and high felting shrinkage rate of the fabric treated by the single protease method, so as to achieve the purpose of optimizing the effect of protease treatment on wool fabrics. The whole rough cloth is first extracted in chloroform-methanol or carbon tetrachloride-methanol solution to remove free oily impurities, and then pretreated with hydrogen peroxide and cutinase to improve the hydrophilicity of the fiber surface, and then processed in protease solution Reduction processing, realizing the bioprocessing combined with wool enzyme reduction. Through the present invention, the biological wool anti-felting process can replace the traditional chlorination anti-felting method, which can not only effectively improve the weight reduction rate and anti-felting effect of wool fabrics, but also promote the improvement of fabric wettability, and can It can effectively improve the dyeing depth of the fabric, reduce the fiber damage in the reduction process, and is also conducive to the protection of the ecological environment.

Description

A kind of based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at
Technical field
A kind of based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at, belong to the applied technical field that woolen dyeing and finishing is processed in the wool industry.
Background technology
Wool has feltability, and wool fabric is subjected to external force and does the time spent and can produce felting under humid tropical condition, area is shunk, alteration of form, and fine hair is outstanding, and elasticity reduces, and feel is coarse, appearance of fabrics and take performance and had a strong impact on.Therefore, need carry out to remove scale layer to wool fabric be the decrement feld proofing of purpose.At present, the wool anti-felting finishing effect better and most widely used be chloridizing, handle as adopting hypochlorite or DCCA salt (DCCA).Fiber was easily inhaled the chlorine yellowing when chloridizing was handled wool, and fabric feeling is coarse, and is easily irregular during dyeing, and the organic chloride in the processed waste water (AOX) content is quite high, and environment is had adverse effect.
Protease anti-felting is to utilize protease the hydrolysis of the big molecule peptide bond of wool fibre to be made the generation such as scale, cell membrane complexes of wool be partly dissolved, reach part and remove the purpose of scale, having characteristics such as treatment conditions gentleness, energy savings and minimizing pollution, is a kind of felt-proofing finishing method of environmental protection.Because the wool scale top layer is made up of the lipid material of marshalling (primary structure is 20 acid and 20 acid of 18-methyl), and combine with ester bond and thioester bond, have extremely strong hydrophobicity with protein under the lipoid layer.Therefore, when wool being carried out feld proofing, generally need carry out Chemical Pretreatment, increasing the hydrophily of fiber surface, and then handle, remove wool surface scale with protease to the wool surface with protease.Though the conventional chemical preliminary treatment can increase the decrement effect of protease, but because the fiber scale layer processing uniformity is wayward, easily cause the wool fibre internal injury, wool fabric shows as after the Protease Treatment weightlessly to be increased, powerful decline and felting is effect improved limited, therefore is difficult to obtain practical application in preventing felting and shrinking of wood fabric processing.
The hydrogen peroxide conduct is than the environment-friendly type oxidant, when under low concentration mitigation condition, being applied to the wool fibre processing, can change the state of fiber surface hydrophobic layer continuous distributed, by part disulfide bond in the oxidation scale layer, also can increase the accessibility of enzyme molecule to scale keratin substrate, simultaneously be unlikely to again to cause bigger fibre damage, help the processing of wool enzyme process felt proofing.At is mainly derived from fungi and bacterium, is a kind of ester bond that can destroy cutin polymer molecule, and makes its hydrolase that is hydrolyzed to monomer and micromolecule oligomer, and the ester bond in the hydrophobicity lipoid structure of wool scale top layer is had certain catalyzing hydrolysis ability.Wool fibre is after mild oxidation, at increases the hydrolysis effect of wool fibre top layer lipoid substrate, and the fiber surface hydrophily further strengthens, and has promoted follow-up protease to the keratic hydrolysis of wool fibre scale, increase the effect of woolen felt proofing, and environmental pollution is less.
Summary of the invention
Purpose of the present invention is intended to improve the processing effect of Wool-fabric protease anti-felting.Use the present invention can improve the wettability of wool fabric, reduce the felting rate of wool fabric, it is big to solve the fibre damage of traditional chloridizing preventing felting and shrinking of wood fabric, and the technical problem that environmental pollution is serious reaches the optimization process effect, improves environment, improves the purpose of all woolen product quality.
Technical scheme of the present invention: a kind of based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at, all-wool grey fabric behind the abstraction impurity removal is adopted hydrogen peroxide, at solution-treated successively, carry out the protease post processing processing of wool fabric again;
(1) extraction preliminary treatment: wool fabric places chloroform-methanol or carbon tetrachloride-methanol solvate, reflux extraction 2-24 hour, removes the cloth cover residual impurity with ethanol or methyl alcohol and hot water wash successively again;
(2) weak oxide preliminary treatment: the impregnation process in hydrogenperoxide steam generator of the wool fabric after the extraction, handle the abundant washing of back fabric;
Weak oxide pretreating process condition: handle and bathe to containing the solution of mass concentration 30% hydrogen peroxide 1～5g/L, wetting and penetrating agent 0～20g/L, pH 7.0～9.0, and temperature 40-60 ℃, processing time 0.25～1h;
(3) at is handled: the pretreated wool fabric of weak oxide impregnation process at solution, handle the abundant washing of back fabric;
The at treatment process condition: handle the solution of bathing at mass concentration 0.5%～5.0%, wetting and penetrating agent 0～20g/L, pH 7.0～9.0,30～60 ℃ of temperature, processing time 1～6h;
(4) Protease Treatment: the wool fabric impregnation process in protein enzyme solution after at is handled;
The Protease Treatment process conditions: handle the solution of bathing to protease mass concentration 0.2%～2.0%, wetting and penetrating agent 0～20g/L, pH 7.0～9.0,30～60 ℃ of temperature, processing time 0.5～2h;
(5) enzyme that goes out: add 0.5～5.0mol/L trichloroacetic acid in the solution after Protease Treatment and make protease inactivation in the enzyme liquid, or improve enzyme liquid temp to 90 and ℃ handle certain hour;
(6) washing: fabric is fully washed with hot water and cold water respectively behind the enzyme that goes out.
Described based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at, be applicable to that the wool fabric of processing comprises all-wool gabardine, serge, valetin worsted fabric and drap-de-berry kind.
Described based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at, the biology enzyme of application is selected different types of at and protease for use.
Described based on weak oxide and the pretreated Wool-fabric protease anti-felting method of at, in at and Protease Treatment, adopt adding polyoxyethylene-type non-ionic surface active agent or anion surfactant to make wetting and penetrating agent, or do not add any wetting and penetrating agent.
Beneficial effect of the present invention: the present invention relates to based on weak oxide and the non-single protease method of the pretreated Wool-fabric protease anti-felting method of at, also be different from existing oxidation processes and protease process combined, but adopted weak oxide and at preliminary treatment combination, carry out the three-steps process that the protease decrement combines again.With only compare through the sample of oxidation pre-treatment and Protease Treatment, have characteristics preferably with the wool fabric of this law processing, under the situation that does not add any surfactant, the wetting time of wool fabric obviously shortens after the enzyme decrement, contact angle reduces.Under close reduction rate condition, the wool fibre damage is lower than hydrogen peroxide and protease group technology treatment samples, and the felting rate is lower, and dyeability is improved obviously.
The specific embodiment
Embodiment 1
Fabric variety: all-wool gabardine.
(1) extraction preliminary treatment: wool fabric places chloroform: (87: 13, v/v) in the organic solvent solution, reflux extraction was 4 hours under 55 ℃ of conditions, removes the cloth cover residual impurity with ethanol and hot water wash respectively again for methyl alcohol.
(2) weak oxide preliminary treatment: handle and bathe: the solution of 30% hydrogen peroxide 2g/L, surfactant 0g/L, 50 ℃ of temperature, pH 8.0,0.5 hour processing time.
(3) at is handled: the solution of at 5.0%owf, surfactant 0g/L, and 60 ℃ of temperature, pH 8.0,4 hours processing times.
(4) Protease Treatment: protease 2%owf, 55 ℃ of temperature, pH 8.5,1 hour processing time.
(5) go out enzyme and washing.
Sample 1: only pass through weak oxide and Protease Treatment;
Sample 2: through weak oxide, at preliminary treatment and protease three steps processing.
After above-mentioned PROCESS FOR TREATMENT, the reduction rate of sample 1 is 4.8%, and wetting time is 15min, and the felting rate is 4.6%; The reduction rate of sample 2 is 5.3%, and wetting time is 1.1min, and the felting rate is 3.0%.
Embodiment 2
Fabric variety: all woolen woman clothing.
(1) extraction preliminary treatment: wool fabric places carbon tetrachloride: (87: 13, v/v) in the organic solvent solution, reflux extraction was 4 hours under 55 ℃ of conditions, removes the cloth cover residual impurity with ethanol and hot water wash respectively again for methyl alcohol.
(2) weak oxide is handled: handle and bathe: the solution of 30% hydrogen peroxide 1g/L, surfactant 0g/L, and 50 ℃ of temperature, pH 8.0,0.5 hour processing time.
(3) at is handled: the solution of at 2.0%owf, surfactant 1g/L, and 60 ℃ of temperature, pH 8.0,4 hours processing times.
(4) Protease Treatment: protease 1%owf, 55 ℃ of temperature, pH 8.5,1 hour processing time.
(5) go out enzyme and washing.
Sample 1: bathe processing through at and protease two;
Sample 2: through weak oxide, at preliminary treatment and protease three steps processing.
After above-mentioned PROCESS FOR TREATMENT, the reduction rate of sample 1 is 4.2%, and wetting time is 5.5min, and the felting rate is 5.1%; The reduction rate of sample 2 is 4.8%, and wetting time is 2.5min, and the felting rate is 3.4%.

Claims (4)

1.一种基于弱氧化和角质酶预处理的羊毛织物蛋白酶防毡缩方法，其特征是将萃取除杂后的全毛坯布依次采用过氧化氢、角质酶溶液处理，再进行羊毛织物的蛋白酶后处理加工；1. A wool fabric protease anti-felting method based on weak oxidation and cutinase pretreatment is characterized in that the full wool cloth after extraction and removal of impurities is treated with hydrogen peroxide and cutinase solution successively, and then the protease of wool fabric is carried out Post-processing; (1)萃取预处理：羊毛织物置于氯仿-甲醇或四氯化碳-甲醇溶剂中，回流萃取2-24小时，再依次以乙醇或甲醇及热水洗除布面残留杂质；(1) Extraction pretreatment: the wool fabric is placed in chloroform-methanol or carbon tetrachloride-methanol solvent, reflux extraction for 2-24 hours, and then washed with ethanol or methanol and hot water to remove residual impurities on the cloth surface; (2)弱氧化预处理：萃取后的羊毛织物在过氧化氢溶液中浸渍处理，处理后织物充分净洗；(2) Weak oxidation pretreatment: the extracted wool fabric is dipped in hydrogen peroxide solution, and the treated fabric is fully washed; 弱氧化预处理工艺条件：处理浴为含质量浓度30％过氧化氢1～5g/L、润湿渗透剂0～20g/L的溶液，pH7.0～9.0，温度40-60℃，处理时间0.25～1h；Weak oxidation pretreatment process conditions: the treatment bath is a solution containing a mass concentration of 30% hydrogen peroxide 1-5g/L, a wetting and penetrating agent 0-20g/L, pH 7.0-9.0, temperature 40-60°C, treatment time 0.25～1h; (3)角质酶处理：弱氧化预处理后的羊毛织物在角质酶溶液中浸渍处理，处理后织物充分净洗；(3) cutinase treatment: the wool fabric after the weak oxidation pretreatment is dipped in the cutinase solution, and the treated fabric is fully washed; 角质酶处理工艺条件：处理浴为角质酶质量浓度0.5％～5.0％、润湿渗透剂0～20g/L的溶液，pH7.0～9.0，温度30～60℃，处理时间1～6h；Cutinase treatment process conditions: the treatment bath is a solution with a mass concentration of cutinase of 0.5% to 5.0%, a wetting and penetrating agent of 0 to 20 g/L, a pH of 7.0 to 9.0, a temperature of 30 to 60°C, and a treatment time of 1 to 6 hours; (4)蛋白酶处理：角质酶处理后的羊毛织物在蛋白酶溶液中浸渍处理；(4) protease treatment: the wool fabric after the cutinase treatment is dipped in the protease solution; 蛋白酶处理工艺条件：处理浴为蛋白酶质量浓度0.2％～2.0％、润湿渗透剂0～20g/L的溶液，pH7.0～9.0，温度30～60℃，处理时间0.5～2h；Protease treatment process conditions: the treatment bath is a solution with a protease mass concentration of 0.2% to 2.0%, a wetting and penetrating agent of 0 to 20 g/L, a pH of 7.0 to 9.0, a temperature of 30 to 60°C, and a treatment time of 0.5 to 2 hours; (5)灭酶：在蛋白酶处理后的溶液中加入0.5～5.0mol/L三氯乙酸使酶液中的蛋白酶失活，或提高酶液温度至90℃处理一定时间；(5) Enzyme inactivation: add 0.5-5.0 mol/L trichloroacetic acid to the protease-treated solution to inactivate the protease in the enzyme solution, or increase the temperature of the enzyme solution to 90°C for a certain period of time; (6)水洗：灭酶后织物分别以热水和冷水充分水洗。(6) Water washing: After the enzyme is eliminated, the fabric is fully washed with hot water and cold water respectively. 2.根据权利要求1所述的基于弱氧化和角质酶预处理的羊毛织物蛋白酶防毡缩方法，其特征是适用于处理的羊毛织物包括全毛华达呢、哔叽、凡立丁精纺呢绒织物及粗纺呢绒品种。2. the wool fabric protease anti-felting method based on weak oxidation and cutinase pretreatment according to claim 1, is characterized in that the wool fabric that is applicable to processing comprises all-wool gabardine, serge, varitin worsted wool fabric and Slub woolen varieties. 3.根据权利要求1所述的基于弱氧化和角质酶预处理的羊毛织物蛋白酶防毡缩方法，其特征是应用的生物酶选用不同种类的角质酶和蛋白酶。3. the wool fabric protease anti-felting method based on weak oxidation and cutinase pretreatment according to claim 1 is characterized in that the biological enzyme of application selects different kinds of cutinase and protease. 4.根据权利要求1所述的基于弱氧化和角质酶预处理的羊毛织物蛋白酶防毡缩方法，其特征是角质酶和蛋白酶处理中，采用加入聚氧乙烯型非离子表面活性剂、或阴离子表面活性剂作润湿渗透剂，或不加入任何润湿渗透剂。4. the wool fabric protease anti-felting method based on weak oxidation and cutinase pretreatment according to claim 1 is characterized in that in cutinase and protease treatment, adopts to add polyoxyethylene type nonionic surfactant or anion The surfactant is used as a wetting and penetrating agent, or no wetting and penetrating agent is added.
CN2009100315528A 2009-04-22 2009-04-22 Wool-fabric protease anti-felting method based on weak oxidation and cutinase pretreatment Expired - Fee Related CN101565902B (en)

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CN102965956A (en) * 2012-10-19 2013-03-13 江南大学 Wool worsted fabric compound enzyme padding-steaming stacking anti-felting finishing technology
CN102965960A (en) * 2012-11-21 2013-03-13 山东来利来毛纺有限公司 Shrink-proof technique of chemical fiber
CN102965955A (en) * 2012-10-19 2013-03-13 江南大学 A kind of cutinase, keratinase and protease one-bath wool anti-felting process
CN102965958A (en) * 2012-10-31 2013-03-13 江南大学 Wool product two-bath process anti-felting treatment technology based on composite bio-enzyme
CZ304860B6 (en) * 2013-06-03 2014-12-10 Technická univerzita v Liberci Method of increasing felting property of animal fibers, especially of wool or hair
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CN105544198A (en) * 2016-01-25 2016-05-04 苏州印丝特纺织数码科技有限公司 Antibacterial and anti-felting wool fabric finishing method
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CN107059414A (en) * 2017-05-25 2017-08-18 苏州凯邦生物技术有限公司 A kind of Wool fabric anti-felting biologic enzyme treatment method
CN107858835A (en) * 2017-12-08 2018-03-30 常熟市沪联印染有限公司 A kind of wool fabric dyeing pre-treating technology
CN108794614A (en) * 2018-06-21 2018-11-13 澳洋集团有限公司 The method for extracting wool keratin from waste wool
CN108589345A (en) * 2018-07-30 2018-09-28 嘉兴学院 A kind of graphene wool product and production method

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