CN101424040B - Wool fiber modification treatment method - Google Patents

Abstract

The invention relates to a method for modifying wool fiber and belongs to the technical field of textile dyeing and finishing. It adopts pre-oxidation treatment, oxidation treatment, reduction treatment, enzymatic hydrolysis treatment and softening treatment and other modification processes, which can effectively improve the quality of wool loose fiber, wool yarn, wool top, wool fancy yarn and wool fancy top. Milling property, to prepare worsted wool products, achieve anti-shrinking and "machine washable" effect, improve the dimensional stability of worsted wool products, and obtain soft and smooth handle and excellent luster at the same time. The standard washing shrinkage rate of the wool ready-made garment products produced by the method is lower than 3%.

Description

The method of wool fiber modification treatment

technical field

The present invention relates to a processing method of modified wool fibers, in particular to wool loose fibers, yarns, tops or worsted wool products with anti-felting performance, soft and smooth hand feeling and "machine washable" performance of finished garments The invention discloses a processing method of modified wool fiber, which belongs to the technical field of textile dyeing and finishing.

Background technique

Wool products, such as all kinds of wool, loose wool, tops, yarn, worsted wool products, fancy woolen fabrics, high-grade wool knitted products, wool machine washable clothing, etc., all involve the scales on the surface of wool fibers during the printing and dyeing process. The removal problem is a common problem in the printing and dyeing wool spinning industry. Wool textile products are one of the most complex natural fibers. Due to the special scale organization on the surface of wool, it is difficult to dye and chemically treat wool and has a tendency to feel. The method of removing wool scale tissue with chlorinating agent (dichloroisocyanurate salt) is the most common method to solve the felting of wool products, accounting for about 95% of domestic worsted wool processing.

For example, in the Chinese invention patent "Machine-washable silk velvet and its production process" with the notification number CN1309881C, it is disclosed that a machine is prepared by treating with dichloroisocyanurate and compound protease to remove scales on the surface of wool fiber. Ways to wash silk fleece. The Chinese invention patent with the notification number CN1176266C "Multi-step chemical treatment of sheep wool imitation Alpak fiber method" uses organochlorine DC (dichloroisocyanurate) and protein enzymes to treat wool loose fibers or tops to remove wool surface scales Or the method of cutting off the edges and corners of the scales. The advantages of the chlorination method are: chlorine can erode the scale structure, reduce the surface friction effect of wool product processing and daily washing; moderate chlorination agent processing can prevent wool damage, such as strength decline, weight loss, rough feel, and poor elasticity . But it can't achieve complete anti-felting washing effect, and can't meet the requirement of dimensional stability after machine washable. Therefore, the commercial technology of foreign high-grade worsted wool products or tops mainly adopts the chlorination-Hercosett (chlorination/resin two-step method) process. Dichloroisocyanurate chlorination technology or chlorination-Hercosett technology has been applied for more than 20 years, but this mature technology has been greatly impacted abroad in recent years. Chlorination technology is not a green process, which has a great impact on environmental pollution and contains highly toxic AOX (absorbable halogenated organic content). Chlorination technology is easy to cause great damage to wool fiber, resulting in yellowing or even discoloration, especially not suitable for the processing of high-grade woolen yarn.

At present, research technologies that replace wool chlorination technology to prepare wool shrink-proof and "machine washable" products include: oxidation technology, enzyme technology, resin technology, and two-step or three-step wool shrink-proof technology.

1. Oxidation technology: persulfuric acid and salt, hydrogen peroxide, potassium permanganate, etc. have all been tried to be applied to the anti-shrink technology of wool fabrics. Foreign countries use persulfate-silicon emulsion technology, such as Caroat-Ultratex (Ciba Corporation of the United States), Dylan Ultrasoft (PPT company), etc., but the effect of improving the various easy care of wool is far less than that of chlorination technology. The notification number is CN1136352C Chinese Invention Patent "Easy Care Performance Modification Method of Wool Fiber Products and Wool Fiber Products", using oxidation (persulfuric acid or persulfate) treatment, enzyme (Argaenzyme STL) treatment, softening treatment to Wool fibers are modified to produce soft, machine-washable wool products.

2. Enzyme technology: trypsin, papain, lipase, genetically modified protease (such as LAN L of Danish Novo Company), compound enzymes (such as transferase and modified protease), etc. have all been used in the anti-shrinking technology of wool. The Chinese invention patent "Enzyme Treatment of Wool" with the notification number CN1028781C discloses an enzyme (such as bromelain) treatment method to make wool or animal fibers have low felting or no felting and soft wool feel. Publication number is CN1748056A Chinese invention patent "the biotechnological finishing method of wool", it is reported to treat wool woven fabric or knitted fabric with protease (such as the Protex Multiplus L protease of Genencor), and the preparation shrinkage is less than 3% and does not take place pilling, Felted wool products. The Chinese invention patent "Wool Anti-felting Finishing Method" with the notification number CN1316117C reported the use of pretreatment (chitosan), enzyme treatment (neutral protease and neutral lipase) and softening treatment to prepare wool fabrics for anti-felting. Less than 3%, wool anti-felting fabric with strength loss within 5%. Chinese Invention Patent "Wool Biological Modification Treatment Method" with the notification number CN1207461C

It is reported that lipase (such as Lipolase 100T enzyme), hydrogen peroxide/catalase (TerminoxUltra 50L), protease (Nolan) and soft finishing are used to modify wool yarn, loose fiber or top to prepare soft and anti-felting "Machine Washable" products. It is difficult to reduce the modification of wool scale tissue directly by enzyme treatment; while pre-swelling or etching of wool, and then enzyme treatment will cause bacterial protease to preferentially attack the highly expandable cortex layer and uneven enzymatic hydrolysis, although it can make The washing shrinkage of wool reaches the machine washable standard, but the fiber strength is greatly damaged, and the handle is extremely rough; if the weight loss of wool is 3%, the strength drops by 25%; when the weight loss is 5%, the strength drops by as much as 50%, so the enzyme treatment process alone The application in actual production is greatly restricted.

3. Resin technology: Polymer G (PPT company) resin is used to form a covering layer on the wool surface, but this method cannot be used alone, otherwise it will affect the soft feel of wool tops, wool worsted clothing and other products. The Chinese invention patent "Polyurethane Wool Anti-felting Finishing Agent and Its Preparation Method" with the notification number CN1304461C reported the synthesis of an anionic reactive silicone compound with polyisocyanate, polyol compound and polyether modified polyorganosiloxane compound. The modified water-based polyurethane wool anti-felting finishing agent is a processing method for improving the surface state of wool through resin finishing. The advantage of this method is that it is environmentally friendly and has an excellent anti-felting effect on wool. However, this method has a great impact on the feel of wool products and is not suitable for wool products that require softness. Therefore, this technology is generally not used alone in industry. , mostly adopt wool scale and resin technology to meet the requirements of wool products for anti-felting and soft feel. The Chinese invention patent "Aqueous Composition for Anti-felting Finishing of Wool" with the notification number CN1244732C reports that polyether polyols\oligomeric polyols, etc. are used to prepare water-soluble pre-shrinkage bodies for anti-felting finishing of wool. There are also polymer wool anti-felting agents, such as protein-epoxy modified (CN87100206B "wool fabric anti-felting finishing agent and its manufacturing process"), water-soluble polyurethane (CN1233897C "worsted wool fabric and garment form lasting Stabilizing Finishing Process") to improve the anti-felting effect of wool.

4. Two-step or three-step wool shrink-proof technology: UV-protease reduction technology, glow discharge low-temperature plasma-protease technology, ammonia salt-protease technology, oxidation (reduction)-protease technology, chitosan-protease technology, Neutral lipase-protease-resin technology, etc. Some of these technological researches need to invest a large amount of equipment, and the manufacturing cost of the equipment is very high or lack of production reproducibility; some have great damage to the wool fiber, and some have high cost or poor practicability. Notification number is CN100352997C Chinese invention patent "Easy to be healthy, easy to care for, the preparation method of environment-friendly wool" has been reported to use metal treatment (the main components are copper sulfate and zinc sulfate, etc.), oxidation treatment, alkali treatment, alkali reduction, reduction treatment etc. to replace chlorine-based agents (such as sodium hypochlorite, sodium dichloroisocyanurate), and to peel off the scales on the wool surface through physical and chemical effects. Although this method avoids the high pollution of the environment caused by the traditional chlorination technology, it uses a solution of copper ions and zinc ions, which will be adsorbed on the wool fiber (such as through the formation of a coordination bond between the copper ion and the polar group on the wool) , so that the metal ions in the textiles exceed the standard. In addition, the physical action is not ideal for removing the scales of the wool top. The friction between the wool and water is limited, and the use of high-speed rotation will make the wool sliver messy, and even produce a lot of fluff on the surface of the wool sliver, which directly affects the surface finish of wool products.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a method that can effectively improve the shrinkage of wool fibers to prepare worsted wool products, improve the dimensional stability of worsted wool products, and simultaneously obtain softness and smoothness The handle and excellent luster of the wool fiber is modified by the treatment method.

The technical scheme adopted in the present invention is: provide a kind of method of wool fiber modification treatment, comprise the steps:

(1) Pre-oxidation treatment: In the wool intermittent dyeing machine, add oxidant sodium percarbonate and accelerator tetraacetylethylenediamine, the weight of the sodium percarbonate is 0.5-6% of the weight of the wool fiber to be processed, and the weight of the tetraacetylethylenediamine is The weight of diamine is 30-60% of the weight of sodium percarbonate, the bath ratio is 1:10-20, the wool fiber is pre-oxidized, the treatment time is 20-60 minutes, and the temperature of the pre-oxidation treatment bath is 30-80°C;

(2) Oxidation treatment: In the wool intermittent dyeing machine, add an oxidation treatment bath composed of a high-efficiency penetrant and an oxidant, and oxidize the wool fiber for 20 to 30 minutes; the high-efficiency penetrant is SP-2, and the oxidant It is a mixture of one or more of ammonium persulfate, sodium persulfate and potassium persulfate; the dosage of high-efficiency penetrating agent SP-2 is 0.5-1% of the weight of wool to be treated, and the dosage of oxidant is 2-1% of the weight of wool to be treated 10%; the treatment temperature of the oxidation treatment bath is 25-45°C;

(3) Reduction treatment: using one or more mixtures of sodium sulfite, sodium bisulfite, and sodium pyrosulfite as a reducing agent, in a wool intermittent dyeing machine, the wool fiber is reduced; the amount of the reducing agent is 2-10% of the weight of the wool to be treated; the reduction treatment temperature is 30-60°C, and the time is 20-60 minutes;

(4) Enzyme hydrolysis treatment: adopt alkaline protease treatment bath, in the wool intermittent dyeing machine, carry out enzyme hydrolysis treatment to wool fiber; In the described enzyme treatment bath, the amount of alkaline protease is 0.2～ 1.0%, use soda ash in the enzyme treatment bath to adjust the pH value of the solution to 7.5-8.2; the enzymatic hydrolysis treatment temperature is 50-55°C, and the treatment time is 20-30 minutes;

(5) Softening treatment: use amino silicone, hydroxyl silicone, epoxy modified silicone or higher fatty acid derivatives as softeners to soften wool fibers in the wool intermittent dyeing machine; the amount of softener is determined by 2.5-8% of the wool weight is treated; the softening treatment bath uses acetic acid to adjust the pH value of the treatment solution to 4.5-5; the softening treatment temperature is 30-45° C., and the treatment time is 30-50 minutes.

The wool described in the present invention is whole wool loose fiber, yarn or wool top. The said yarn is wool polyester blended yarn or wool acrylic blended yarn, and the wool fiber content in the blended yarn is not less than 40%.

Compared with the prior art, the present invention has the advantage of effectively improving the quality of wool loose fibers, wool yarns, and wool tops due to the adoption of modification processes such as pre-oxidation treatment, oxidation treatment, reduction treatment, enzymatic hydrolysis treatment, and softening treatment. , Wool fancy yarn, and the milling property of wool fancy tops to prepare worsted wool products to achieve anti-shrunk and "machine washable" effects, improve the dimensional stability of worsted wool products, and at the same time obtain softness and Smooth feel and excellent gloss. The standard washing shrinkage rate of the wool ready-made garment products produced by the method is lower than 3%.

Detailed ways

The present invention will be further described below in conjunction with embodiment:

Example 1:

For undyed wool fibers, the modification process is: wool fiber → pre-oxidation treatment → washing → oxidation treatment → washing → reduction treatment → washing → enzyme hydrolysis treatment → washing → (dyeing → washing) → softening treatment → centrifugal dehydration → drying → modified wool fiber.

Wool loose fiber: Put 100Kg of loose fiber into the intermittent wool dyeing machine, add 3Kg of sodium percarbonate and 0.9Kg of tetraacetylethylenediamine at 30-32°C, run for 30 minutes, turn on the water, and then use 30-32°C Wash with water for 10 minutes and drain the water. Then, add 0.8Kg high-efficiency penetrant SP-2 and 5Kg ammonium persulfate at 28-30°C, run for 25 minutes, drain water, wash with water at 30-32°C for 10 minutes, and drain water. Next, add 5Kg of sodium metabisulfite at 38-40°C and run for 20 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.8Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 5Kg of softener, wherein the softener is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 2:1, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 2:

Wool loose fiber: put 100Kg loose fiber into the intermittent wool dyeing machine, add 5Kg sodium percarbonate and 2.5Kg tetraacetylethylenediamine at 30-32°C, run for 30 minutes, drain water, and then use 30-32°C Wash with water for 10 minutes and drain the water. Then, at 28-30°C, add 0.5Kg of high-efficiency penetrant SP-2 and 4Kg of a mixture of ammonium persulfate and sodium persulfate with a mass ratio of 1:1, run for 30 minutes, drain water, and then use 30-32°C water Wash for 10 minutes and turn on the water. Next, add 4Kg of a mixture of sodium metabisulfite and sodium sulfite with a mass ratio of 1:1 at 38-40°C, run for 25 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.8Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 4Kg softener, wherein the softener is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 1:1, and run at 25-28°C for 40 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 3:

Wool loose fiber: After enzymatic hydrolysis treatment, wool loose fiber can be dyed with conventional acid dyes, neutral dyes or reactive dyes in intermittent loose wool dyeing machines, and finally softened, dehydrated and dried. The processing conditions relevant to the present invention are the same as in Example 1. It can be used to produce dyed wool modified loose fiber.

In the technical solution of the present invention, wool dyeing is to use acid dyes, neutral dyes, reactive dyes, cationic dyes, basic dyes, and disperse dyes to prepare dyed wool fibers, wool/acrylic fibers and wool/polyester fibers with conventional dyeing methods.

Example 4:

Wool loose fiber: After enzymatic hydrolysis treatment, wool loose fiber can be dyed with conventional acid dyes, neutral dyes or reactive dyes in intermittent loose wool dyeing machines, and finally softened, dehydrated and dried. The processing conditions relevant to the present invention are the same as in Example 2. It can be used to produce dyed wool modified loose fiber.

Example 5:

Wool yarn (60 counts): Put 100Kg of yarn into the intermittent top dyeing machine, add 2Kg of sodium percarbonate and 0.6Kg of tetraacetylethylenediamine at 30-32°C, run for 30 minutes, drain the water, and use Wash with water at 30-32°C for 10 minutes, then drain. Then, add 0.6Kg high-efficiency penetrant SP-2 and 5.5Kg mixture of ammonium persulfate and potassium persulfate with a mass ratio of 1:1 at 28-30°C, run for 25 minutes, drain water, and then use 30-32°C water Wash for 10 minutes and turn on the water. Next, add 4Kg of sodium metabisulfite at 38-40°C and run for 20 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.7Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 4Kg of softening and smoothing agent, wherein the softening and smoothing agent is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 1:1, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Embodiment 6:

Wool yarn (60 counts): After enzymatic hydrolysis treatment, the wool yarn can be dyed with conventional acid dyes, neutral dyes or reactive dyes in the intermittent top dyeing machine, and finally softened, dehydrated and dried . The processing conditions relevant to the present invention are the same as in Example 5. 60 counts of dyed wool yarns can be obtained through wool modification treatment.

Embodiment 7:

Wool yarn (32 counts): Put 100Kg of yarn into the intermittent top dyeing machine, add 3Kg of sodium percarbonate and 1.8Kg of tetraacetylethylenediamine at 30-32°C, run for 30 minutes, drain the water, and use Wash with water at 30-32°C for 10 minutes, then drain. Then, add 0.7Kg of high-efficiency penetrant SP-2 and 6Kg of a mixture of ammonium persulfate and potassium persulfate with a mass ratio of 1:2 at 28-30°C, run for 30 minutes, turn on the water, and wash with water at 30-32°C 10 minutes, turn on the water. Next, add 3Kg of sodium bisulfite at 38-40°C and run for 20 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.6Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 4.5Kg of softening and smoothing agent, wherein the softening and smoothing agent is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 2:1, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Embodiment 8:

Wool yarn (32 counts): After enzyme treatment, wool yarn can be dyed with conventional acid dyes, neutral dyes or reactive dyes in a batch top dyeing machine, and finally softened, dehydrated and dried. The processing conditions relevant to the present invention are the same as in Example 7. 32 dyed wool yarns with modified wool can be obtained.

Embodiment 9:

60/40 wool/acrylic yarn (66 counts, 60% wool content, 40% acrylic fiber content): put 100Kg wool/acrylic fiber yarn into the intermittent top dyeing machine, add 1Kg percarbonate at 30-32°C Sodium and 0.3Kg tetraacetylethylenediamine, run for 30 minutes, drain water, wash with water at 30-32°C for 10 minutes, drain water. Then, add 0.5Kg of high-efficiency penetrant SP-2 and 5Kg of ammonium persulfate at 28-30°C, run for 30 minutes, drain water, wash with water at 30-32°C for 10 minutes, and drain water. Next, add 3Kg of sodium bisulfite at 38-40°C and run for 20 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.2Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 3.0Kg of softening and smoothing agent, wherein the softening and smoothing agent is amino silicon softener, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 10:

60/40 wool/acrylic yarn (66 counts, 60% wool content, 40% acrylic fiber content): After the wool/acrylic fiber yarn is treated with enzymes, conventional acid dyes and reactive dyes can be used in intermittent top dyeing machines , cationic dyes, basic dyes, and finally softened, dehydrated and dried. The processing conditions relevant to the present invention are the same as in Example 9. 66 dyed wool/acrylic yarns with modified wool/acrylic yarn can be obtained.

Example 11:

70/30 wool/polyester yarn (66 counts, 70% wool content, 30% polyester content): put 100Kg wool/polyester yarn into the intermittent top dyeing machine, add 1.5Kg over Sodium carbonate and 0.5Kg tetraacetylethylenediamine, run for 30 minutes, drain water, then wash with water at 30-32°C for 10 minutes, drain water. Then, at 28-30°C, add 0.5Kg of high-efficiency penetrant SP-2 and 4Kg of a mixture of sodium persulfate and potassium persulfate with a mass ratio of 2:1, run for 30 minutes, drain water, and then use 30-32°C Wash with water for 10 minutes and drain. Next, add 3Kg of sodium sulfite at 38-40°C and run for 20 minutes, turn on the water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.3Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 4.0Kg of softening and smoothing agent, wherein the softening and smoothing agent is a hydroxyl silicone softener, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 12:

70/30 wool/polyester yarn (66 counts, 70% wool content, 30% polyester content): After the wool/polyester yarn is treated with enzymes, it can be used in the intermittent top dyeing machine with conventional acid dyes, neutral Dyeing with dyes, reactive dyes, disperse dyes, and finally softening, dehydration and drying. The processing conditions relevant to the present invention are the same as in Example 11. 66 dyed wool/polyester yarns with wool/polyester yarn modification treatment can be obtained.

Example 13:

For wool dyed fiber that has been dyed, the modification process is: wool dyed fiber→preoxidation treatment→water washing→oxidation treatment→water washing→reduction treatment→water washing→enzyme treatment→water washing→softening treatment→centrifugal dehydration→drying →Modified wool fiber. Among them, the pre-oxidation treatment process step is a process that can be used, and it is also a process that may not be used. It can be determined according to the requirements of dyed wool products. Other processes such as centrifugal dehydration and drying are conventional processes. Wool dyed fibers are wool fibers that have been dyed with acid dyes, neutral dyes, reactive dyes, cationic dyes, basic dyes, disperse dyes, wool/acrylic fibers and wool/polyester fibers.

Dyeing wool loose fiber: put 100Kg of dyed wool loose fiber into the intermittent wool dyeing machine, add 0.5Kg of high-efficiency penetrant SP-2 and 4.5Kg of 1:1 process at a mass ratio of 28-30°C A mixture of sodium sulfate and potassium persulfate, run for 30 minutes, drain the water, then wash with water at 30-32°C for 10 minutes, drain the water. Then, add 6Kg of sodium metabisulfite at 38-40°C and run for 20 minutes, turn on the water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.4Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 5Kg of softening and smoothing agent, wherein the softening and smoothing agent is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 1:1, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 14:

Dyeing wool loose fiber: put 100Kg of dyed wool loose fiber into the intermittent wool dyeing machine, add 1Kg sodium percarbonate and 0.5Kg tetraacetylethylenediamine at 30-32°C, run for 30 minutes, turn on the water, and then Wash with water at 30-32°C for 10 minutes and drain. Other processing conditions relevant to the present invention are the same as in Example 13.

Example 15:

Dyeing wool yarn (66 counts): put 100Kg of dyed yarn into the intermittent top dyeing machine, add 0.6Kg of high-efficiency penetrating agent SP-2 and 5.5Kg at a mass ratio of 1:1 at 28-30°C A mixture of sodium persulfate and ammonium persulfate, run for 30 minutes, turn on the water, then wash with water at 30-32°C for 10 minutes, turn on the water. Then, add 2Kg of sodium sulfite at 38-40°C and run for 20 minutes, turn on the water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.3Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 5Kg of softening and smoothing agent, wherein the softening and smoothing agent is a mixture of amino silicon softener and higher fatty acid softener with a mass ratio of 1:1, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 16:

Dyeing wool yarn (66 counts): put 100Kg of dyed yarn into the intermittent top dyeing machine, add 0.5Kg sodium percarbonate and 0.25Kg tetraacetylethylenediamine at 30-32°C, run for 30 minutes, Turn on the water, wash with water at 30-32°C for 10 minutes, and turn on the water. Other processing conditions relevant to the present invention are the same as in Example 15.

Example 17:

70/30 wool/acrylic dyed yarn (66 specifications, 70% wool content, 30% acrylic fiber content): put 100Kg wool/acrylic fiber dyed yarn into the intermittent top dyeing machine, add 0.5 Kg of high-efficiency penetrant SP-2 and 4.5Kg of a mixture of ammonium persulfate and sodium persulfate in a mass ratio of 1:1, run for 20 minutes, drain, then wash with water at 30-32°C for 10 minutes, drain. Then, at 38-40°C, add 3.5Kg of a mixture of sodium bisulfite and sodium sulfite with a mass ratio of 1:1, run for 20 minutes, drain water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.2Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 3.0Kg of softening and smoothing agent, wherein the softening and smoothing agent is amino silicon softener, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 18:

70/30 wool/acrylic dyed yarn (66 counts, 70% wool content, 30% acrylic fiber content): 100Kg wool/acrylic dyed yarn is put into intermittent top dyeing machine, 100Kg wool/acrylic dyed fiber yarn Put the thread into the intermittent top dyeing machine, add 1Kg sodium percarbonate and 0.3Kg tetraacetylethylenediamine at 30-32°C, run for 30 minutes, drain the water, wash with 30-32°C water for 10 minutes, drain the water. Other processing conditions relevant to the present invention are the same as in Example 17.

Example 19:

70/30 wool/polyester dyed yarn (100 counts, 70% wool content, 30% polyester content): put 100Kg wool/polyester dyed yarn into the intermittent top dyeing machine, add 1Kg at 28-30°C High-efficiency penetrant SP-2 and 5.5Kg of a mixture of potassium persulfate and sodium persulfate with a mass ratio of 1:1, run for 20 minutes, drain water, then wash with water at 30-32°C for 10 minutes, drain water. Next, add 3Kg of sodium sulfite at 38-40°C and run for 20 minutes, turn on the water, and wash with water at 30-32°C for 10 minutes. Continue to heat up to 52-53°C, add 0.3Kg alkaline protease and a certain amount of soda ash, use pH test paper to test the pH value of the solution to 7.8, run for 25 minutes, continue to heat up to 75°C, run for 10 minutes, turn on the water, and then use 30 Wash in -32°C water for 10 minutes. Finally, add 4.0Kg of softening and smoothing agent, wherein the softening and smoothing agent is a hydroxyl silicone softener, and run at 25-28°C for 30 minutes. Out of the cylinder, dehydrated on a centrifugal dehydrator, and dried.

Example 20:

70/30 wool/polyester dyed yarn (100 counts, 70% wool content, 30% polyester content): put 100Kg wool/polyester dyed yarn into the intermittent top dyeing machine, add 1Kg at 30-32°C Sodium percarbonate and 0.3Kg tetraacetylethylenediamine, run for 30 minutes, drain water, wash with water at 30-32°C for 10 minutes, drain water. Other processing conditions relevant to the present invention are the same as in Example 19.

Claims (3)

1. a method for wool fiber modification treatment, is characterized in that comprising the steps: (1) Pre-oxidation treatment: In the wool intermittent dyeing machine, add oxidant sodium percarbonate and accelerator tetraacetylethylenediamine, the weight of the sodium percarbonate is 0.5-6% of the weight of the wool fiber to be processed, and the weight of the tetraacetylethylenediamine is Diamine weight is 30～60% of sodium percarbonate weight, bath ratio is 1: 10～20, carries out preoxidation treatment to wool fiber, treatment time is 20～60 minutes, and preoxidation treatment bath temperature is 30～80 ℃; (2) Oxidation treatment: In the wool intermittent dyeing machine, add an oxidation treatment bath composed of a high-efficiency penetrant and an oxidant, and oxidize the wool fiber for 20 to 30 minutes; the high-efficiency penetrant is SP-2, and the oxidant It is a mixture of one or more of ammonium persulfate, sodium persulfate and potassium persulfate; the dosage of high-efficiency penetrating agent SP-2 is 0.5-1% of the weight of wool to be treated, and the dosage of oxidant is 2% of the weight of wool to be treated ～10%; the treatment temperature of the oxidation treatment bath is 25～45℃; (3) Reduction treatment: using one or more mixtures of sodium sulfite, sodium bisulfite, and sodium pyrosulfite as a reducing agent, in a wool intermittent dyeing machine, the wool fiber is reduced; the amount of the reducing agent is 2-10% of the weight of the wool to be treated; the reduction treatment temperature is 30-60°C, and the time is 20-60 minutes; (4) Enzyme hydrolysis treatment: adopt alkaline protease treatment bath, in the wool intermittent dyeing machine, carry out enzyme hydrolysis treatment to wool fiber; In the described enzyme treatment bath, the amount of alkaline protease is 0.2～ 1.0%, use soda ash in the enzyme treatment bath to adjust the pH value of the solution to 7.5-8.2; the enzymatic hydrolysis treatment temperature is 50-55°C, and the treatment time is 20-30 minutes; (5) Softening treatment: use amino silicone, hydroxyl silicone, epoxy modified silicone or higher fatty acid derivatives as softeners to soften wool fibers in the wool intermittent dyeing machine; the amount of softener is determined by 2.5-8% of the wool weight is treated; the softening treatment bath uses acetic acid to adjust the pH value of the treatment solution to 4.5-5; the softening treatment temperature is 30-45° C., and the treatment time is 30-50 minutes. 2. The method for modifying wool fiber according to claim 1, characterized in that: the wool is loose wool fiber, wool yarn or wool top. 3. the method for a kind of wool fiber modified treatment according to claim 2, is characterized in that: described wool yarn is the yarn of wool polyester blending or the yarn of wool acrylic blending, and wool fiber in the blending yarn content of not less than 40%.