阅读说明：本技术 一种抗菌保健纤维及其制作方法和应用 (Antibacterial health-care fiber and preparation method and application thereof ) 是由 刘慧卿 俞龙泉 王琳 于 2021-08-04 设计创作，主要内容包括：本发明属于合成纤维技术领域,具体公开一种抗菌保健纤维及其制作方法和应用,所述纤维将树脂与抗菌金属等特定组分复合后进行纺丝,提高了抗菌物质与树脂的结合力,防止了抗菌物质的流失,组分中的富氢物质还含有大量的H～(-),是抗菌金属离子的活化剂,能显著提高金属离子的杀菌活性,使纤维具有优良的抗菌性能,制成衣物后能有效避免病菌与人体接触,保护人体健康；该抗菌保健纤维在吸附少量水后,纤维中的富氢组分还能缓慢释放出氢气,氢气可以通过人体细胞直接进入人体,去除人体内的自由基,清除人体细胞内的恶性氧,修复受损的细胞,增强人体免疫力,使该抗菌保健纤维在具有较强的抗菌性能的同时,还具有一定的保健作用。(The invention belongs to the technical field of synthetic fibers, and particularly discloses an antibacterial health-care fiber, and a preparation method and application thereofLoss of the antimicrobial substance, and the hydrogen-rich substance in the composition also contains a large amount of H ‑ The fiber is an activator of antibacterial metal ions, can obviously improve the bactericidal activity of the metal ions, has excellent antibacterial performance, can effectively avoid the contact of germs and human bodies after being made into clothes, and protects the health of the human bodies; after the antibacterial health-care fiber absorbs a small amount of water, the hydrogen-rich component in the fiber can slowly release hydrogen, the hydrogen can directly enter a human body through human body cells, free radicals in the human body are removed, malignant oxygen in the human body cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the antibacterial health-care fiber has a certain health-care effect while having strong antibacterial performance.)

1. The antibacterial health-care fiber is characterized by being prepared by spinning a hydrogen-rich composite material, wherein the hydrogen-rich composite material comprises the following substances in parts by weight: 80-100 parts of antibacterial resin; 1-5 parts of hydrogen-rich substances; 0.2-2 parts of a heat stabilizer; 0.2-2 parts of antioxidant and 0.2-2 parts of dispersant; wherein the antibacterial resin is a carrier resin adsorbed with antibacterial metal.

2. The antibacterial health fiber according to claim 1, wherein the carrier resin is a polyester resin, a polyamide resin or a polypropylene resin having a porous structure.

3. The antibacterial health-care fiber as claimed in claim 2, wherein the preparation method of the antibacterial resin comprises the following steps:

adding carrier resin powder into a solution containing antibacterial metal ions, carrying out ultrasonic treatment for 30-100 min at 40-100 ℃ to obtain a dispersion, adjusting the pH of the dispersion to 8-10, filtering and drying to obtain the antibacterial resin.

4. The antibacterial health-care fiber according to claim 3, wherein the particle size of the carrier resin powder is 10 to 100 μm, and the solid-to-liquid ratio of the dispersion is 1:3 to 6.

5. The antibacterial health-care fiber according to claim 3, wherein the metal ion in the solution containing the antibacterial metal ion is Cu²⁺，Zn²⁺And Ag⁺One or more of the above (B) with a concentration of 2-3 mol/L; and/or

The pH of the dispersion is adjusted with sodium hydroxide solution, potassium hydroxide solution or a mixture of both.

6. The antibacterial health-care fiber as claimed in claim 1, wherein the hydrogen-rich substance is hydrogen-rich refined calcium, and the specific preparation method is that coral calcium is calcined in an oxygen-free hydrogen atmosphere at a temperature of 300-400 ℃ for 30-40 min to obtain refined calcium, and the hydrogen pressure is 0.5-1.0 MPa; and (3) increasing the calcination temperature to 450-650 ℃, increasing the hydrogen pressure to 1.5-2.5 Mpa, continuing calcining for 30-40 min, cooling to room temperature, and grinding to obtain the hydrogen-rich refined calcium.

7. The antibacterial health fiber according to claim 6, wherein the dispersant is polyvinylpyrrolidone, glyceryl monostearate or glyceryl tristearate.

8. A method for preparing the antibacterial health-care fiber according to any one of claims 1 to 7, which is characterized by comprising the following steps:

s1: weighing raw materials according to the weight part, adding the hydrogen-rich substance and the dispersing agent into the antibacterial resin, uniformly mixing in an anhydrous and oxygen-free environment, and granulating to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding the heat stabilizer and the antioxidant, heating to a molten state, stirring for 20-30 min, extruding, and spinning at the temperature of 250-320 ℃ and the winding speed of 1500-2000 m/min to obtain the antibacterial health-care fiber.

9. Use of the antibacterial health-care fiber of any one of claims 1 to 7 in the preparation of gloves with antibacterial health-care function.

10. Use of the antibacterial health fiber of any one of claims 1 to 7 for the preparation of clothing having antibacterial health function.

Technical Field

The invention belongs to the technical field of synthetic fibers, and particularly relates to an antibacterial health-care fiber and a manufacturing method and application thereof.

Background

In recent years, bacteria and viruses have increasingly affected people's lives: from SARS virus in 2003 to the later H1N1 influenza virus and the new coronavirus which is now abusive, the serious threat to human life and health has been brought. They all have a very wide spread route, and can enter the respiratory tract and digestive tract of human body through air, food and other carriers, and also can enter human body through skin to destroy the immune system in human body. People also pay more and more attention to the defense against viruses, and in terms of human body protection, clothes and gloves are important external guarantees for human body skin protection.

At present, a few antibacterial clothes and gloves are sold in the market, the clothes are mostly made of synthetic fibers coated with antibacterial substances, but due to the limitation of the process, the antibacterial substances are difficult to enter the fibers and are easy to desorb in the storage and use processes, so that the fibers have the problems of poor antibacterial capability, non-lasting antibacterial performance and the like, and the requirements of consumers cannot be met more and more.

Disclosure of Invention

Aiming at the technical problems of weak antibacterial ability and non-durable antibacterial property of the antibacterial fiber in the prior art, the invention provides the antibacterial health-care fiber which has strong and durable antibacterial ability, can enhance the immunity of human bodies, has a certain health-care function, and can be used for producing products such as clothes, gloves and the like with the antibacterial health-care function.

In order to achieve the purpose of the invention, the embodiment of the invention adopts the following technical scheme:

in a first aspect, an embodiment of the present invention provides an antibacterial health care fiber, which is spun from a hydrogen-rich composite material, wherein the hydrogen-rich composite material includes the following substances, by weight: 80-100 parts of antibacterial resin; 1-5 parts of hydrogen-rich substances; 0.2-2 parts of a heat stabilizer; 0.2-2 parts of antioxidant and 0.2-2 parts of dispersant, wherein the antibacterial resin is carrier resin absorbed with antibacterial metal.

The antibacterial health-care fiber provided by the invention is used for spinning after compounding the resin with specific components such as antibacterial metal and the like, so that the binding force of the antibacterial substance and the resin is improved, the loss of the antibacterial substance in the use process is prevented, and the duration time of the antibacterial performance is prolonged. The hydrogen-rich material in the component also contains a large amount of H^-The fiber is an activator of antibacterial metal ions in the antibacterial resin, can obviously improve the bactericidal activity of the metal ions, has excellent antibacterial performance, can effectively prevent germs from contacting human bodies after being made into clothes, and protects the health of the human bodies; after the antibacterial health-care fiber absorbs a small amount of water, the hydrogen-rich component in the fiber can slowly release hydrogen, the hydrogen can directly enter a human body through human body cells, free radicals in the human body are removed, malignant oxygen in the human body cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the antibacterial health-care fiber has a certain health-care effect while having strong antibacterial performance.

Preferably, the carrier resin is one of a polyester resin, a polyamide resin or a polypropylene resin having a porous structure.

The resin has certain adsorption capacity, so that metal and the resin can be better combined, the surface-to-body ratio of the resin can be improved due to the porous structure of the resin, and the adsorption quantity of the metal is ensured.

Preferably, the preparation method of the antibacterial resin comprises the following steps:

adding carrier resin powder into a solution containing antibacterial metal ions, carrying out ultrasonic treatment for 30-100 min at 40-100 ℃ to obtain a dispersion, adjusting the pH of the dispersion to 8-10, filtering and drying to obtain the antibacterial resin.

The preparation method of the antibacterial resin provided by the invention has the advantages that the carrier resin powder and the solution containing antibacterial metal ions are fully mixed in an ultrasonic treatment mode, so that the carrier resin powder and the solution are fully contacted, and the adsorption quantity of the carrier resin and the metal ions is ensured; after the pH value is adjusted, the carrier resin and the antibacterial metal ions are subjected to ion reaction, so that the adsorbed metal ions are solidified on the resin, and the binding force between the resin and the metal is further improved.

Preferably, the particle size of the carrier resin is 10-100 μm, and the solid-to-liquid ratio of the dispersion liquid is 1: 3-6.

The carrier resin with the particle size of 10-100 mu m and the solid-to-liquid ratio of 1: 3-6 can obtain more uniform dispersion liquid, facilitate the adsorption of the resin on ions and the judgment of the ion reaction end point, and avoid the influence of excessive pH regulators mixed in the antibacterial resin on the performance.

Preferably, the antibacterial metal ion in the antibacterial metal ion-containing solution is Cu²⁺，Zn²⁺And Ag⁺And (b) one or more of the above (a), wherein the overall concentration is 2-3 mol/L, and the pH of the dispersion is adjusted by using a sodium hydroxide solution, a potassium hydroxide solution or a mixture of the sodium hydroxide solution and the potassium hydroxide solution.

Preferably, the hydrogen-rich substance is hydrogen-rich refined calcium, and the preparation method comprises the following steps:

calcining coral calcium in an oxygen-free hydrogen atmosphere at the temperature of 200-400 ℃ for 30-40 min to obtain refined calcium, wherein the hydrogen pressure is 0.5-1.0 MPa; and (3) increasing the calcination temperature to 400-600 ℃, increasing the hydrogen pressure to 1.5-2.5 Mpa, continuing calcining for 30-40 min, cooling to room temperature, grinding to obtain the hydrogen-rich refined calcium, and storing the obtained refined calcium in an anhydrous and oxygen-free environment for later use.

The refined calcium is a high-quality carrier, and the porous structure of the refined calcium can enrich a large amount of H^-Meanwhile, the calcium carbonate has strong adsorption capacity, is not easy to desorb in an environment with lower oxygen concentration, has long storage time, and ensures the structure of refined calcium and the H in the refined calcium by matching with a specific preparation process^-The amount of adsorption of (3).

Preferably, the dispersant is polyvinylpyrrolidone, glyceryl monostearate or glyceryl tristearate.

The optimized dispersing agent can ensure that the hydrogen-rich substances are uniformly dispersed in the antibacterial resin, avoid agglomeration, ensure the uniformity of the sterilization performance of the fiber, and can also generate a synergistic effect with a heat stabilizer and an antioxidant to ensure that the antibacterial performance of the fiber is more durable.

In a second aspect, an embodiment of the present invention further provides a preparation method of the antibacterial health care fiber, which specifically includes the following steps:

s1: weighing raw materials according to the weight part, adding the hydrogen-rich substance and the dispersing agent into the antibacterial resin, uniformly mixing in an anhydrous and oxygen-free environment, and granulating to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding the heat stabilizer and the antioxidant, heating to a molten state, stirring for 20-30 min, and spinning at the temperature of 250-320 ℃ and the winding speed of 1500-2000 m/min to obtain the antibacterial health-care fiber.

In a third aspect, the embodiment of the present invention further provides an application of the antibacterial health care fiber in preparing gloves with antibacterial health care functions: the obtained fiber can be further woven to be made into cloth with antibacterial and health-care functions, and the cloth can be directly made into gloves or used as an interlayer material of conventional gloves.

In a fourth aspect, the embodiment of the present invention further provides an application of the antibacterial health care fiber in preparing clothing with an antibacterial health care function: the obtained fiber is further woven to prepare cloth with antibacterial and health-care functions, and the cloth can be used as an interlayer material of clothes; or the obtained fiber and natural fiber are blended to prepare composite fiber, and the obtained fiber is spun into cloth to prepare clothes with antibacterial and health-care functions.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The embodiment provides an antibacterial health-care fiber which is prepared by spinning a hydrogen-rich composite material, wherein the hydrogen-rich composite material comprises the following substances in parts by weight: 90 parts of antibacterial resin, 3 parts of a hydrogen-rich substance, 1 part of a zinc stearate heat stabilizer, 1 part of an antioxidant 1010 and 1 part of a polyvinylpyrrolidone dispersing agent, wherein the antibacterial resin is polyester resin adsorbed with antibacterial metal, and the hydrogen-rich substance is hydrogen-rich refined calcium.

The preparation method of the antibacterial resin comprises the following steps: adding polyester resin powder with the particle size of 40 mu m into a mixed solution of silver nitrate and copper nitrate with the cation concentration of 2.4mol/L, carrying out ultrasonic treatment for 50min at 65 ℃ to obtain a dispersion liquid, controlling the solid-to-liquid ratio of the dispersion liquid to be 1:4, adding a sodium hydroxide solution into the dispersion liquid to adjust the pH value of the dispersion liquid to 8-10, filtering, and drying the obtained solid to obtain the antibacterial resin.

The preparation method of the hydrogen-rich refined calcium comprises the following steps: calcining coral calcium at 340 deg.C for 35min in oxygen-free hydrogen atmosphere to obtain refined calcium, wherein hydrogen pressure is 0.8 MPa; and (3) increasing the calcining temperature to 500 ℃, increasing the hydrogen pressure to 1.8Mpa, continuing calcining for 30min, cooling to room temperature, grinding to obtain the hydrogen-rich refined calcium, and storing the obtained refined calcium in an anhydrous and oxygen-free environment for later use.

The embodiment also provides a preparation method of the antibacterial health-care fiber, which specifically comprises the following steps:

s1: weighing raw materials according to the weight part, adding the hydrogen-rich substance and the dispersing agent into the antibacterial resin, and uniformly mixing and granulating in an anhydrous and oxygen-free environment to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding the heat stabilizer and the antioxidant, heating to a molten state, stirring for 25min, extruding, and spinning at 290 ℃ at a winding speed of 1600m/min to obtain the antibacterial health-care fiber. The release amount of hydrogen in the fiber is 800-1200 ppb, the hydrogen can enter a human body through the skin, free radicals in the body are removed, malignant oxygen in cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the fiber has a certain health-care effect.

The obtained fiber is further woven into cloth with antibacterial and health-care functions, and then the gloves with antibacterial and health-care functions are manufactured.

Example 2

The embodiment provides an antibacterial health-care fiber which is prepared by spinning a hydrogen-rich composite material, wherein the hydrogen-rich composite material comprises the following substances in parts by weight: 85 parts of antibacterial resin, 5 parts of hydrogen-rich substance, 0.8 part of triphenyl phosphite heat stabilizer, 0.8 part of antioxidant 1010 and 1.2 parts of polyvinylpyrrolidone dispersing agent, wherein the antibacterial resin is polyamide resin absorbed with antibacterial metal, and the hydrogen-rich substance is hydrogen-rich refined calcium.

The preparation method of the antibacterial resin comprises the following steps: adding polyamide resin powder with the particle size of 60 mu m into a mixed solution of silver nitrate, zinc nitrate and copper nitrate with the cation concentration of 2.8mol/L, carrying out ultrasonic treatment for 70min at 70 ℃ to obtain a dispersion, controlling the solid-to-liquid ratio of the dispersion to be 1:3, adding a sodium hydroxide solution into the dispersion to adjust the pH of the dispersion to 8-10, filtering, and drying the obtained solid to obtain the antibacterial resin.

The preparation method of the hydrogen-rich refined calcium comprises the following steps: calcining coral calcium at 350 deg.C for 40min in oxygen-free hydrogen atmosphere to obtain refined calcium, wherein hydrogen pressure is 1.0 MPa; and (3) increasing the calcining temperature to 550 ℃, increasing the hydrogen pressure to 2.0Mpa, continuing calcining for 30min, cooling to room temperature, grinding to obtain the hydrogen-rich refined calcium, and storing the obtained refined calcium in an anhydrous and oxygen-free environment for later use.

The embodiment also provides a preparation method of the antibacterial health-care fiber, which specifically comprises the following steps:

s1: weighing raw materials according to the weight part, adding the hydrogen-rich substance and the dispersing agent into the antibacterial resin, and uniformly mixing and granulating in an anhydrous and oxygen-free environment to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding the heat stabilizer and the antioxidant, heating to a molten state, stirring for 30min, extruding, and spinning at the temperature of 300 ℃ at the winding speed of 1800m/min to obtain the antibacterial health-care fiber. The release amount of hydrogen in the fiber is 800-1200 ppb, the hydrogen can enter a human body through the skin, free radicals in the body are removed, malignant oxygen in cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the fiber has a certain health-care effect.

The obtained fiber is woven into cloth with antibacterial and health-care functions, and the cloth can be used as an interlayer material of a conventional glove, so that the glove has antibacterial and health-care properties.

Example 3

The embodiment provides an antibacterial health-care fiber which is prepared by spinning a hydrogen-rich composite material, wherein the hydrogen-rich composite material comprises the following substances in parts by weight: 95 parts of antibacterial resin, 4 parts of hydrogen-rich substance, 0.8 part of triphenyl phosphite heat stabilizer, 1.2 parts of antioxidant 1010 and 0.8 part of glyceryl tristearate dispersant, wherein the antibacterial resin is polypropylene resin absorbed with antibacterial metal, and the hydrogen-rich substance is hydrogen-rich refined calcium.

The preparation method of the antibacterial resin comprises the following steps: adding polypropylene resin powder with the particle size of 30 mu m into a mixed solution of silver nitrate and zinc nitrate with the cation concentration of 2.5mol/L, carrying out ultrasonic treatment for 50min at 65 ℃ to obtain a dispersion liquid, controlling the solid-to-liquid ratio of the dispersion liquid to be 1:5, adding a potassium hydroxide solution into the dispersion liquid to adjust the pH value of the dispersion liquid to 8-10, filtering, and drying the obtained solid to obtain the antibacterial resin.

The preparation method of the hydrogen-rich refined calcium comprises the following steps: calcining coral calcium at 300 deg.C for 40min in oxygen-free hydrogen atmosphere to obtain refined calcium, wherein hydrogen pressure is 1.0 MPa; and (3) increasing the calcining temperature to 650 ℃, increasing the hydrogen pressure to 2.5Mpa, continuing calcining for 40min, cooling to room temperature, grinding to obtain the hydrogen-rich refined calcium, and storing the obtained refined calcium in an anhydrous and oxygen-free environment for later use.

The embodiment also provides a preparation method of the antibacterial health-care fiber, which specifically comprises the following steps:

s1: weighing raw materials according to the weight part, adding a hydrogen-rich substance and a dispersing agent into the antibacterial resin, and uniformly mixing and granulating in an anhydrous and oxygen-free environment to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding the heat stabilizer and the antioxidant, heating to a molten state, stirring for 30min, extruding, and spinning at the temperature of 300 ℃ at the winding speed of 1700m/min to obtain the antibacterial health-care fiber. The release amount of hydrogen in the fiber is 800-1200 ppb, the hydrogen can enter a human body through the skin, free radicals in the body are removed, malignant oxygen in cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the fiber has a certain health-care effect.

The obtained fiber is woven into a cloth with antibacterial and health-care functions, and the cloth can be used as an interlayer in clothes to enable the clothes to have antibacterial and health-care functions.

Example 4

The embodiment provides an antibacterial health-care fiber which is prepared by spinning a hydrogen-rich composite material, wherein the hydrogen-rich composite material comprises the following substances in parts by weight: 90 parts of antibacterial resin, 3 parts of a hydrogen-rich substance, 0.8 part of zinc stearate heat stabilizer, 1 part of antioxidant 1098 and 1 part of polyvinylpyrrolidone dispersing agent, wherein the antibacterial resin is polyester resin adsorbed with antibacterial metal, and the hydrogen-rich substance is hydrogen-rich refined calcium.

The preparation method of the antibacterial resin comprises the following steps: adding polyester resin powder with the particle size of 80 mu m into a mixed solution of silver nitrate and copper nitrate with the cation concentration of 2.8mol/L, carrying out ultrasonic treatment for 40min at the temperature of 60 ℃ to obtain a dispersion liquid, controlling the solid-to-liquid ratio of the dispersion liquid to be 1:6, adding a sodium hydroxide solution into the dispersion liquid to adjust the pH value of the dispersion liquid to 8-10, filtering, and drying the obtained solid to obtain the antibacterial resin.

The preparation method of the hydrogen-rich refined calcium comprises the following steps: calcining coral calcium in oxygen-free hydrogen atmosphere at 300 deg.C for 30min to obtain refined calcium, wherein hydrogen pressure is 0.6 MPa; and (3) increasing the calcining temperature to 500 ℃, increasing the hydrogen pressure to 1.6Mpa, continuing calcining for 40min, cooling to room temperature, grinding to obtain the hydrogen-rich refined calcium, and storing the obtained refined calcium in an anhydrous and oxygen-free environment for later use.

The embodiment also provides a preparation method of the antibacterial health-care fiber, which specifically comprises the following steps:

s1: weighing raw materials according to the weight part, adding a hydrogen-rich substance and a dispersing agent into the antibacterial resin, and uniformly mixing and granulating in an anhydrous and oxygen-free environment to obtain the hydrogen-rich composite material master batch;

s2: and adding the hydrogen-rich composite material master batch into a single-screw extruder, adding a heat stabilizer and an antioxidant, heating to a molten state, stirring for 25min, extruding, and spinning at 260 ℃ at a winding speed of 1900m/min to obtain the antibacterial health-care fiber. The release amount of hydrogen in the fiber is 800-1200 ppb, the hydrogen can enter a human body through the skin, free radicals in the body are removed, malignant oxygen in cells is eliminated, damaged cells are repaired, the immunity of the human body is enhanced, and the fiber has a certain health-care effect.

The obtained fiber is blended with natural fiber by adopting a conventional process to obtain composite fiber, and the composite fiber is woven into cloth to prepare clothes with antibacterial and health-care functions.

Comparative example 1

The comparative example provides a fiber spun from a composite material comprising the following materials in parts by weight: the preparation processes of 90 parts of antibacterial resin, 1 part of zinc stearate heat stabilizer, 1 part of antioxidant 1010 and 1 part of polyvinylpyrrolidone dispersing agent are the same as those of example 1.

Comparative example 2

This comparative example provides a fiber having the same raw materials and preparation process as example 1, except that the dispersant used in the hydrogen rich composite was hydroxymethyl cellulose.

Detection example:

(1) 25 equal parts of samples are respectively selected from the fibers prepared in examples 1-4, comparative example 1 and comparative example 2, each sample is equally divided into 5 parts, and the inhibition rate and the antiviral performance of fibers of different groups on 5 bacteria and viruses are respectively tested by adopting GB/T20944.3-2008 oscillation method, and the result is thatAs shown in table 1:

TABLE 1

Note: indicates that P < 0.05 compared to example 1.

According to the data in table 1, the bacteriostatic rate of the fiber obtained in examples 1-4 to different bacteria and the antiviral activity rate of different viruses are both over 98.50%, which is obviously superior to that of comparative example 1, and the data obtained in comparative example 1 and example 1 have significant difference.

From the standard deviation of comparative example 2, the bacteriostatic rates of different samples to each virus and bacteria have larger deviation, which indicates that the bacteriostatic rates of the samples are greatly different, i.e. the antibacterial substance in the mask obtained in comparative example 2 is unevenly distributed.

(2) The fibers obtained in examples 1-4, comparative example 1 and comparative example 2 are washed for 20 minutes by the laundry detergent, and after the fibers are repeatedly washed for 50 times, the inhibition rate and the antiviral performance of 5 kinds of bacteria and viruses are tested again, and the results show thatAs shown in table 2.

TABLE 2

Note: indicates that P < 0.05 compared to example 1.

Comparing the data in table 2 and table 1, it can be seen that the average bacteriostatic rate change of the fibers prepared in examples 1-4 after being repeatedly cleaned for 50 times is less than 0.5%, and can also be maintained above 98%, and it can be seen that the bacteriostatic performance of the fibers provided by the invention is stable and durable, while the average bacteriostatic rate change of the fibers prepared in comparative example 2 after being subjected to antiseptic cleaning for 50 times is more than 1.5%.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.