CN107541928A - Ultraviolet irradiation based on keratin oligopeptides, polypeptide or keratin macromolecular is used for nursing and the felt-proofing finishing method of wool fabric - Google Patents

Abstract

The invention relates to a method for keratin oligopeptides, polypeptides or keratin macromolecules to be used for wool fabric care and anti-felting finishing through ultraviolet radiation. Extract keratin oligopeptides, polypeptides or keratin macromolecules from animal fibers by biochemical methods and react with heterologous protein cross-linking agents to prepare reactive keratin finishing solutions, which are applied on wool fabrics by spraying and dipping, and dehydrated. After drying, keratin oligopeptides, polypeptides or keratin macromolecules are used for wool fabric care and anti-felting finishing by natural drying after ultraviolet irradiation. The finishing process is simple, easy to operate, low energy consumption, less pollution, and has no obvious impact on the appearance of wool fabrics. The wool fabrics treated by this method and anti-felting not only have good dimensional stability, wrinkle recovery performance, but also Improve the breaking strength and elasticity of wool fabrics.

Description

UV irradiation based on keratin oligopeptides, polypeptides or keratin macromolecules for wool Fabric care and anti-felting finishing methods

technical field

The invention relates to the technical field of fiber treatment and finishing, in particular to a method for realizing care and anti-felting finishing of wool fabrics by using modified keratin oligopeptides, polypeptides or macromolecular finishing solutions extracted from protein fibers through ultraviolet irradiation.

Background technique

Wool fiber has many excellent properties unmatched by other fibers, such as good elasticity, good warmth retention, soft luster and rich hand feeling, and is favored by consumers. However, due to its complex fiber structure, it is prone to problems such as felting and dimensional changes and damage during daily dressing and washing.

At present, it has been reported that keratin is used in the anti-felting finishing of wool fabrics, mainly by using oxidant method, reduction method, cuproammonia solution method and other chemical preparations to obtain keratin macromolecules with poor water solubility through adsorption or cross-linking agent (pentyl). Dialdehyde, etc.) cross-linking and other methods to realize the coating of keratin on the surface of wool fiber by high-temperature baking, and finally realize the anti-felting finishing of wool fabric.

Contents of the invention

The purpose of the present invention is to provide a preparation method for extracting keratin oligopeptides, polypeptides or macromolecules by biological methods using protein fibers as raw materials, and compounding with heterologous protein cross-linking agents to configure keratin oligopeptides and polypeptide finishing solutions. At the same time, it also provides a finishing method using the above-mentioned keratin oligopeptide and polypeptide finishing solution for wool fabric care and anti-felting; the finishing process is simple, easy to operate, low energy consumption, and less pollution. The fabric has good anti-felting effect and can be used for daily care of high-grade wool fabrics.

The invention relates to the preparation of a keratin oligopeptide, polypeptide or macromolecule finishing solution and its application in wool fabric care and anti-felting finishing method. The keratin finishing solution is a keratin finishing solution with ultraviolet light reactivity formed by using protein fibers as raw materials, keratin oligopeptides, polypeptides or macromolecules prepared by biological methods and heterologous protein cross-linking agents. The keratin finishing solution is applied to the wool fabric by dipping and spraying, and after drying, the keratin oligopeptide, polypeptide or macromolecule-protein cross-linking agent-wool fiber is irradiated to form a network structure, thereby stabilizing the fabric size and obtaining good anti-felting effect.

The technical solution adopted in the present invention is: a finishing method based on keratin oligopeptides and polypeptide finishing solutions for wool fabric care and anti-felting, applying keratin oligopeptides, polypeptides or keratin macromolecular finishing solutions to wool fabrics , heating or drying and dehydration;

Irradiate the fabric with the keratin oligopeptide, polypeptide or macromolecule finishing solution in the above steps under ultraviolet light, and dry naturally to obtain the wool fabric treated with keratin oligopeptide, polypeptide or keratin macromolecule and anti-felting finish; Wherein, the irradiation wavelength is 300-400nm, and the irradiation time is 10-300 min.

The keratin oligopeptide, polypeptide or macromolecule finishing liquid is extracted from protein fibers by means of biochemical method and combined with protein cross-linking agent to prepare keratin oligopeptide, polypeptide or macromolecular finishing liquid;

The preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions as described above is characterized in that, the keratin oligopeptides, polypeptides or macromolecules use protein fibers as raw materials, such as wool, feathers, silk, etc. Fiber industry waste;

The biochemical method refers to degrading keratin with sulfite, guanidine, guanidine hydrochloride, urea, etc. in conjunction with protease, disulfide bond isomerase or amino acid in a certain buffer solution to prepare oligopeptide, polypeptide or macromolecule solution.

The keratin oligopeptide, polypeptide or macromolecule finishing solution is prepared by the reaction of keratin oligopeptide, polypeptide, macromolecule and heterologous cross-linking agent; the heterologous cross-linking agent refers to the Diazomethane (SDA, LC-SDA, SDAD, Sulfo-SDA, Sulfo-LC-SDA, or Sulfo-SDSD) or aryl azides (ABH, ANB-NOS, NHS-ASA, APDP, BASED, SANPAH, or Sulfo -SANPAH); the keratin oligopeptide, polypeptide or macromolecule and the heterologous cross-linking agent undergo a cross-linking reaction in an alkaline buffer solution with a pH of 7 to 10, and the keratin oligopeptide, polypeptide or macromolecule reacts with the heterologous cross-linking agent One terminal reactive group of the source crosslinker reacts.

As mentioned above, the keratin finishing solution is applied to the wool fabric, and it is characterized in that the keratin oligopeptide, polypeptide or macromolecular finishing solution is applied to the wool fabric by spraying, dipping, etc., and after dehydration and drying, it is irradiated to form horns. Protein-protein crosslinker-3D network between wool fibers.

A kind of method that keratin oligopeptide, polypeptide or macromolecular finishing solution is used for wool fabric care and anti-felting finishing by ultraviolet radiation, this preparation method adopts following process:

A) Biochemical extraction of keratin oligopeptides, polypeptides or macromolecules: Wash wool, feathers, silk and other fiber industrial wastes with alkali, then crush them, and immerse them in 5g/L~ In the pH7~11 buffer solution of reducing agent such as sulfite, guanidine or guanidine hydrochloride at 30g/L, stir continuously at room temperature~80℃ to pretreat the pulverized fiber for 10min~60min, then add protease or disulfide to the system Bond isomerase, etc. use enzyme-catalyzed methods to stir and degrade fibers at a constant temperature of 45-90°C for 0.5h-5h, separate by centrifugation, take the supernatant, and obtain keratin oligopeptides, polypeptides or macromolecular solutions with uniform molecular weight distribution through dialysis;

B) Biochemical extraction of keratin oligopeptides, polypeptides or macromolecules: degrease wool, feathers, silk and other fiber industrial wastes, crush them, and immerse them in urea (1-10M) according to the bath ratio of 1:5~1:50 and amino acid (0.1-1M) aqueous solution, adjust the pH to 7-11, shake at 50-100°C for 1-10 h with an oscillating water bath, separate by centrifugation, take the supernatant, and obtain a uniform molecular weight distribution by dialysis Keratin oligopeptide, polypeptide or macromolecule solution;

C) In the keratin oligopeptide, polypeptide or macromolecule solution prepared in the above step A) or B), add a protein heterologous crosslinking agent: the molar ratio of keratin oligopeptide, polypeptide and macromolecule is 100~5:1, Stir continuously at room temperature to 50°C for 0.5 to 3 hours to obtain reactive keratin oligopeptides, polypeptides or macromolecular finishing solutions;

D) Spray or dip the keratin oligopeptide, polypeptide or macromolecular finishing solution prepared in the above step A) or B) on the wool fabric to be finished, heat or spin dry for dehydration;

E) Irradiate the fabric with keratin oligopeptide, polypeptide or macromolecule finishing solution in the above step D) under 300nm~400nm wavelength ultraviolet light for 10~300min, and dry naturally to obtain keratin oligopeptide, polypeptide or macromolecule care and wool fabrics with anti-felting finish.

The principle of the present invention is to use protein fibers as raw materials, use biochemical methods to cut off the peptide bonds and disulfide bonds of protein fibers to extract keratin oligopeptides, polypeptides or macromolecules, and configure them with heterologous protein cross-linking agents to form reactive keratin Protein oligopeptides, polypeptides or macromolecular finishing solutions are applied to wool fabrics by spraying, dipping, etc., and keratin oligopeptides, polypeptides or macromolecules are formed by ultraviolet irradiation-protein cross-linking agent-wool fiber-fiber interior 3D network, so as to realize the care and anti-felting finishing of wool fabrics; the keratin macromolecules may contain high-molecular-weight keratin, and the molecular weight is between 35kDa and 70kDa, with an average of about 45kDa.

Beneficial effect:

The invention proposes a method of extracting keratin oligopeptides, polypeptides or macromolecules from protein fibers by means of biochemical methods modified by heterologous protein cross-linking agents, and preparing keratin oligopeptides, polypeptides or macromolecules into a finishing liquid;

The present invention proposes a method for the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution to be used for anti-felting finishing of wool fabrics through ultraviolet light irradiation;

The preparation method of the keratin oligopeptide, polypeptide or macromolecular finishing of the present invention is simple and the conditions are mild, and the keratin oligopeptide, polypeptide and macromolecular finishing liquid is used for wool anti-felting finishing process with simple method, easy operation, low energy consumption and low pollution. few;

The keratin oligopeptide, polypeptide or macromolecular ultraviolet radiation of the present invention is used for wool fabric finishing, not only has good dimensional stability and wrinkle recovery performance, but also improves the breaking strength and elasticity of wool fabric and improves the hand feeling.

Detailed ways

The following examples will help to understand the present invention, but do not limit the content of the present invention.

Example 1

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions with wool fibers as raw materials, used for wool fabric care and anti-felting finishing methods through ultraviolet irradiation

a. Shred or grind the wool fibers, and immerse them in a pH 7 buffer solution containing 5g/L sulfite reducing agent according to the bath ratio of 1:10, and continuously stir at 80°C to pretreat the crushed fibers for 10 minutes Finally, add 20 U/g-fiber protease or disulfide bond isomerase to the system, use the enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 60°C for 0.5h, separate by centrifugation, take the supernatant, and obtain the molecular weight distribution by dialysis Uniform keratin oligopeptide, polypeptide or macromolecule solution;

b. To the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, according to crosslinking agent: keratin oligopeptide, polypeptide, macromolecule molar ratio is 50:1, add protein heterologous crosslinking agent Sulfo-SDA, and at room temperature Under the condition of continuous stirring and reaction for 0.5h, the reactive keratin oligopeptide, polypeptide or macromolecule finishing solution is obtained;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated under 365 nm wavelength ultraviolet light for 30 minutes, and dried naturally to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and Stretchy wool fabric.

Example 2

Preparation of keratin oligopeptide, polypeptide or macromolecular finishing solution from wool fiber: UV irradiation for wool fabric care and anti-felting finishing method

a. Shred or grind the wool fibers, and immerse them in a pH 11 buffer solution containing 5M urea and 0.5M amino acid reducing agent according to the bath ratio of 1:50, vibrate and grind the fibers in water at 60°C for 5 hours, and then pass Centrifuge, take the supernatant, and obtain a keratin oligopeptide, polypeptide or macromolecule solution with uniform molecular weight distribution through dialysis;

b. Add protein heterologous cross-linking agent SDA to the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution according to the cross-linking agent: keratin oligopeptide, polypeptide molar ratio of 100:1, and continuously stir the reaction at room temperature 1h, get reactive keratin oligopeptide, polypeptide or macromolecule finishing solution;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides and polypeptide finishing solutions were irradiated with 330nm wavelength ultraviolet light for 60 minutes, and dried naturally, so as to obtain wool fabrics with good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity fabric.

Example 3

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind the wool fibers, and immerse them in a buffer solution of pH 8 containing 20g/L guanidine reducing agent according to the bath ratio of 1:30, and continuously stir the pretreated pulverized fibers at room temperature for 60 minutes, and then pour them into Add 20 U/g-fiber protease or disulfide bond isomerase to the system, use enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 60°C for 3 hours, separate by centrifugation, and take the supernatant to obtain keratin-containing oligopeptides and polypeptides or macromolecule solution;

b. To the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, add protein heterologous cross-linking agent LC-SDA according to the molar ratio of cross-linking agent: keratin oligopeptide and polypeptide is 5:1, and under the condition of 50 ℃ Continuously stir and react for 0.5h to obtain reactive keratin oligopeptide, polypeptide or macromolecule finishing solution;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated under 370nm wavelength ultraviolet light for 10 minutes, and dried naturally, so as to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity. woolen fabric.

Example 4

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind the wool fibers, and immerse them in a buffer solution of pH 9 containing 3M urea and 1M amino acid reducing agent according to the bath ratio of 1:25. After vibrating and crushing the fibers in water at 90°C for 3 hours, centrifuge Separation, take the supernatant, and obtain a keratin oligopeptide, polypeptide or macromolecular solution with uniform molecular weight distribution through dialysis;

b. Add protein heterologous cross-linking agent Sulfo-LC-SDA to the above keratin oligopeptide, polypeptide or macromolecule solution according to the molar ratio of cross-linking agent: keratin oligopeptide and polypeptide is 70:1, and heat Under the condition of continuous stirring and reaction for 3 hours, the reactive keratin oligopeptide, polypeptide or macromolecule finishing solution is obtained;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated with 300nm wavelength ultraviolet light for 300min and dried naturally to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity woolen fabric.

Example 5

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind wool fibers, and immerse them in a pH 10 buffer solution containing 20 g/L sulfite reducing agent according to the bath ratio of 1:25, and continuously stir at 45°C to pretreat the crushed fibers After 60 minutes, add 15U/g-fiber protease or disulfide bond isomerase to the system, use enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 65°C for 1 hour, separate by centrifugation, and take the supernatant to obtain keratin-containing oligosaccharides Peptide, polypeptide or macromolecule solution;

b. To the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, add protein heterologous crosslinking agent SDAD according to the crosslinking agent: keratin oligopeptide, polypeptide molar ratio of 50:1, and continuously stir at 45°C React for 2 hours to obtain reactive keratin oligopeptides, polypeptides or macromolecular finishing solutions;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated with 400nm wavelength ultraviolet light for 300min, and dried naturally, so as to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity woolen fabric.

Example 6

Preparation of keratin oligopeptide, polypeptide or macromolecular finishing solution from wool fiber: UV irradiation for wool fabric care and anti-felting finishing method

a. Shred or grind wool fibers, and immerse them in a pH 10 buffer solution containing 20 g/L sulfite reducing agent according to the bath ratio of 1:25, and continuously stir at 45°C to pretreat the crushed fibers After 60 minutes, add 15U/g-fiber protease or disulfide bond isomerase to the system, use enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 65°C for 1 hour, separate by centrifugation, take the supernatant, and obtain a uniform molecular weight distribution by dialysis Keratin oligopeptide, polypeptide or macromolecule solution;

b. In the above-mentioned keratin oligopeptide, polypeptide or macromolecular solution, according to cross-linking agent: keratin oligopeptide, polypeptide, macromolecule molar ratio is 80:1 to add protein heterologous cross-linking agent NHS-ASA, and in 45 Continuous stirring and reaction at ℃ for 2 hours to obtain reactive keratin oligopeptides, polypeptides or macromolecular finishing solutions;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated under 300nm wavelength ultraviolet light for 10 minutes, and dried naturally, so as to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity. woolen fabric.

Example 7

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind the wool fibers, and immerse them in a buffer solution of pH 8 containing 20g/L guanidine reducing agent according to the bath ratio of 1:30, and continuously stir the pretreated pulverized fibers at room temperature for 60 minutes, and then pour them into Add 20 U/g-fiber protease or disulfide bond isomerase to the system, use enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 60°C for 1 hour, separate by centrifugation, take the supernatant, and obtain keratin with uniform molecular weight distribution through dialysis Oligopeptide, polypeptide or macromolecule solution;

b. In the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, add protein heterologous crosslinking agent ANB-NOS according to the crosslinking agent: keratin oligopeptide, polypeptide or macromolecule molar ratio of 60:1, and Under the condition of continuous stirring and reaction for 1h, the reactive keratin oligopeptide, polypeptide or macromolecule finishing solution is obtained;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated with 320nm wavelength ultraviolet light for 30 minutes, and dried naturally to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity. woolen fabric.

Example 8

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind the wool fiber, and immerse it in the buffer solution of pH 8 containing 5g/L sulfite reducing agent according to the bath ratio of 1:10, and continue stirring at 80°C to pretreat the crushed fiber for 10 minutes , add 20 U/g-fiber protease or disulfide bond isomerase to the system, use the enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 60°C for 0.5h, separate by centrifugation, take the supernatant, and obtain the molecular weight distribution from dialysis Homogeneous solution of keratin oligopeptides, polypeptides or macromolecules

b. To the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, add protein heterologous crosslinking agent Sulfo-SANPAH according to the molar ratio of crosslinking agent: keratin oligopeptide, polypeptide or macromolecule at 80:1, and Under the condition of continuous stirring and reaction for 0.5h, the reactive keratin oligopeptide, polypeptide or macromolecule finishing solution is obtained;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated under 340 nm wavelength ultraviolet light for 15 minutes, and dried naturally to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and Stretchy wool fabric.

Example 9

Preparation of keratin oligopeptides, polypeptides or macromolecular finishing solutions from wool fibers: UV irradiation for sheep

Wool fabric care and anti-felting finishing method

a. Shred or grind the wool fibers, and immerse them in a buffer solution of pH 8 containing 20g/L guanidine reducing agent according to the bath ratio of 1:30, and continuously stir the pretreated pulverized fibers at room temperature for 60 minutes, and then pour them into Add 20 U/g-fiber protease or disulfide bond isomerase into the system, use enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 60°C for 3 hours, separate by centrifugation, take the supernatant, and obtain keratin with uniform molecular weight distribution through dialysis Oligopeptide, polypeptide or macromolecule solution;

b. To the above-mentioned keratin oligopeptide, polypeptide or macromolecule solution, add the protein heterologous crosslinking agent SANPAH according to the molar ratio of crosslinking agent: keratin oligopeptide, polypeptide or macromolecule at 30:1, and heat the mixture at 40°C Continuously stir and react for 1 hour to obtain reactive keratin oligopeptide, polypeptide or macromolecule finishing solution;

c. Spray or dip the above-mentioned reactive keratin oligopeptide, polypeptide or macromolecular finishing solution on the wool fabric to be finished, heat or spin dry for dehydration;

d. The above-mentioned wool fabrics treated with keratin oligopeptides, polypeptides or macromolecular finishing solutions are irradiated with 370nm wavelength ultraviolet light for 200min, and dried naturally, so as to obtain good dimensional stability, wrinkle recovery performance, high breaking strength and elasticity woolen fabric.

Claims (9)

1. The UV irradiation based on keratin oligopeptides, polypeptides or keratin macromolecules is used for the nursing and anti-felting finishing method of wool fabrics, which is characterized in that the process is: Apply keratin oligopeptides, polypeptides or keratin macromolecular finishing solutions to wool fabrics, heat or spin dry for dehydration; Irradiate the fabric with the keratin oligopeptide, polypeptide or macromolecule finishing solution in the above steps under ultraviolet light, and dry naturally to obtain the wool fabric treated with keratin oligopeptide, polypeptide or keratin macromolecule and anti-felting finish; Wherein, the irradiation wavelength is 300-400nm, and the irradiation time is 10-300 min. 2. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 1 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described keratin oligopeptide, polypeptide Or the keratin macromolecular finishing solution is extracted from protein fibers by means of biological, chemical or biochemical methods and formulated with a heterologous protein cross-linking agent to form a finishing solution. 3. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 2 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described biochemical method refers to in Degrade keratin with sulfite, guanidine, guanidine hydrochloride, urea complex protease or disulfide bond isomerase in buffer solution or degrade keratin with amino acid reduction or combine the above two methods. 4. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 2 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described heterologous cross-linking agent is Refers to compounds containing succinimide diazomethane or aryl azide. 5. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 4 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described containing succinimide weight Nitrogen as DNA, SDA, LC-SDA, SDAD, Sulfo-SDA, Sulfo-LC-SDA or Sulfo-SDSD, Arylazide as ABH, ANB-NOS, NHS-ASA, APDP, BASED, SANPAH or Sulfo -SANPAH. 6. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 2 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described keratin oligopeptide, polypeptide Or the pH of the alkaline buffer solution when the cross-linking reaction occurs between the keratin macromolecule and the heterologous cross-linking agent is 7-10. 7. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 1 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that adopting following preparation method: a, the described keratin oligopeptide, polypeptide or keratin macromolecular finishing solution is extracted with biological, chemical or biochemical methods, and the specific steps of extraction are: the protein fiber raw material after alkali washing and pulverizing is according to the bath ratio of 1: 10~1:50 Immerse in the buffer solution of pH7~11 containing 5g/L~30g/L sulfite, guanidine or guanidine hydrochloride reducing agent, and continuously stir at room temperature~80℃ to pretreat the pulverized fiber for 10min~ After 60 minutes, add protease or disulfide bond isomerase to the system and use the enzyme-catalyzed method to stir and degrade the fiber at a constant temperature of 45-90°C for 0.5h-5h. After centrifugation, the supernatant is taken, and the angle with uniform molecular weight distribution is obtained by dialysis. Protein oligopeptide, polypeptide or keratin macromolecule solution; b. The keratin oligopeptide, polypeptide or keratin macromolecular finishing solution is extracted by biological, chemical or biochemical methods, and the specific steps of extraction are: washing and pulverizing the protein fiber raw material according to the bath ratio of 1: 5~1:50 Immerse in an aqueous solution containing 1-10M urea and 0.1-1M amino acid, adjust the pH to 7-11, shake at 50-100°C for 1-10h with an oscillating water bath, separate by centrifugation, and take The supernatant is obtained by dialysis to obtain a solution of keratin oligopeptides, polypeptides or macromolecules with uniform molecular weight distribution; In the keratin oligopeptide, polypeptide or keratin macromolecule solution prepared in the above step a or b, add a protein heterologous cross-linking agent, and continuously stir and react at room temperature to 50°C for 0.5~3h to obtain a reactive Keratin oligopeptide, polypeptide or keratin macromolecule finishing fluid. 8. The UV irradiation based on keratin oligopeptides, polypeptides or keratin macromolecules according to claim 7 is used for the care and anti-felting finishing method of wool fabrics, characterized in that protein heterologous crosslinking agent: keratin The molar ratio of oligopeptides, polypeptides or keratin macromolecules is 100~5:1. 9. the ultraviolet radiation based on keratin oligopeptide, polypeptide or keratin macromolecule according to claim 7 is used for the nursing of wool fabric and anti-felting finishing method, it is characterized in that described protein fiber raw material is wool, Feather, silk.