Pure natural underpants fiber material for physically inactivating HPV (human papillomavirus) and preparation method thereof

Abstract

The invention discloses a pure natural underpants fiber material capable of physically inactivating HPV virus and a preparation method thereof, and relates to the technical field of antibacterial materials, the pure natural underpants fiber material comprises an inner core, bamboo fiber and specially-made tea polyphenol fiber are arranged on the inner core, the outer surface of the bamboo fiber is provided with nano-scale graphite phase nitrided carbon fiber, and the outer surface of the bamboo fiber is provided with nano-scale graphite phase nitrided carbon fiber. The outer side of the bamboo fiber and the outer side of the specially-made tea polyphenol fiber are coated with a graphene oxide fiber net, and nanoscale hexagonal boron nitride is attached to the outer side of the bamboo fiber and the outer side of the specially-made tea polyphenol fiber, so that the powerful physical isolation performance and the large specific surface area of the graphene oxide fiber net are utilized on the surface layer, and the nanometer hexagonal boron nitride can be sufficiently borne; the bamboo fibers attached with the nano-scale graphite-phase carbon nitride fibers on the inner layer generate enough active oxygen to destroy HPV viruses on the surface layer from the bottom, meanwhile, the viruses are inactivated by the surface layer through the physical edge of a sharp nano knife of nano hexagonal boron nitride, and the inactivation of the HPV viruses is greatly improved through the two-way effect.

Description

Technical Field

[0001] The invention relates to the technical field of antibacterial materials, in particular to a pure natural underwear fiber material for physically inactivating HPV viruses and a preparation method thereof. Background Art

[0002] HPV is the abbreviation of human papillomavirus. Currently, more than 100 types of viruses have been discovered, 80 of which are closely related to the human body. HPV infects the human body, and type 1 infects the human body and causes common warts. Symptoms of common warts are papules or nodules appearing at the site of trauma on the hands and feet. HPV type 3 can cause flat warts, which are brown flat papules on the face or back of the hands. HPV types 16 and 18 can cause genital warts, also called genital warts. HPV infection can cause a variety of symptoms. Cervical cancer is the fourth most common cancer affecting women worldwide, and HPV virus appears in almost all cervical cancer cases. It can also cause several other cancers, including vaginal, anal, and oropharyngeal cancers. Among the more than 200 types of HPV, they are divided into low-risk human papillomavirus (LR-HPV) and high-risk human papillomavirus (HR-HPV) according to their carcinogenicity. Among them, types 16 and 18 of HR-HPV infection are the most common and have stronger carcinogenicity. The infections caused by them account for 70% of cervical cancer cases.

[0003] Cervical cancer is the most common malignant tumor of the female reproductive tract. A large amount of epidemiological and molecular biological data show that more than 90% of cervical cancers in the world are caused by HPV (human papillomavirus) infection, especially the high-risk HPV16, which is the beginning of genital cancer and cervical cancer pro-cell virus and the most important pathogenic factor of cervical cancer.

[0004] According to our investigation, most women nowadays choose pure cotton underwear, but the materials of the crotch of today's pure cotton underwear are often some ordinary antibacterial fiber materials. Although these materials can resist certain bacteria, their resistance to HPV is very small, which leads to a greatly increased probability of women getting sick and cannot protect women's health well. Some materials with certain resistance to HPV viruses are harmful to the human body, especially the private parts of women. Summary of the invention

[0005] The purpose of the present invention is to provide a pure natural underwear fiber material for physically inactivating HPV virus and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a pure natural underwear fiber material for physically inactivating HPV virus, comprising an inner core, on which bamboo fiber and special tea polyphenol fiber are arranged, the outer surface of the bamboo fiber is provided with nano-scale graphite phase nitrided carbon fiber, the outer sides of the bamboo fiber and the special tea polyphenol fiber are coated with a graphene oxide fiber mesh, and nano-scale hexagonal boron nitride is respectively attached to the special tea polyphenol fiber and the graphene oxide fiber mesh.

[0007] Preferably, the bamboo fibers and the special tea polyphenol fibers are spirally twisted and connected to the inner core, and the special tea polyphenol fibers are arranged between two of the bamboo fibers.

[0008] Preferably, the graphite phase carbon nitride fiber has a diameter of 18-25 nm and is attached to the bamboo fiber by an impregnation method.

[0009] Preferably, the nano-scale hexagonal boron nitride is SP2 hybrid hexagonal boron nitride, and has a thickness of no more than 1 nm and a particle size controlled within a range of 1-30 μm.

[0010] Preferably, the exposure rate of the nano-scale hexagonal boron nitride on the surface of the graphene oxide fiber web is not less than 70%.

[0011] Preferably, the special tea polyphenol fiber contains tea tree oil liposomes.

[0012] In addition, the present invention also provides a method for preparing a pure natural underwear fiber material for physically inactivating HPV virus, including the preparation of a special tea polyphenol fiber attached with hexagonal boron nitride, characterized in that it comprises the following steps:

[0013] Step 1: raw material preparation, preparing tea polyphenol fiber, SP2 hybrid hexagonal boron nitride, 0.5%-1% tea tree oil liposome, amino modified solution and pH 7.2-7.4 phosphate buffer;

[0014] Step 2: fiber amination, cleaning the surface of the tea polyphenol fiber, drying it, and then putting it into the amino modification solution to perform amination treatment on the fiber surface, taking it out, cleaning it, and then drying it;

[0015] Step 3: Liposome combination, dissolving 0.5%-1% tea tree oil liposomes in the phosphate buffer to form a mixed solution, and then spreading the amino tea polyphenol fibers and immersing them in the mixed solution. After the reaction is completed, washing and drying are performed to form tea polyphenol fibers with tea tree oil liposomes;

[0016] Step 4: Dispersion and attachment. Add an appropriate amount of SP2 hybrid hexagonal boron nitride to isopropanol solvent, use ultrasonic dispersion to evenly disperse the SP2 hybrid hexagonal boron nitride in the isopropanol solvent to form a uniform suspension, spread the tea polyphenol fibers with tea tree oil liposomes and evenly immerse them in the above suspension, allow the SP2 hybrid hexagonal boron nitride to attach to the tea polyphenol fibers with tea tree oil liposomes, and remove them after they are fully attached, wash and dry them.

[0017] Preferably, the cleaning is performed under ultrasonic conditions for no less than three times, and deionized water is used for cleaning, and the most recent cleaning is performed with ultrapure water.

[0018] Preferably, the drying in step three is performed by air drying with nitrogen at room temperature.

[0019] Preferably, the drying in step 2 and step 4 is carried out by low-temperature drying.

[0020] In summary, the beneficial effects of the present invention are:

[0021] 1. The surface layer uses the strong physical isolation performance and large specific surface area of ​​the graphene oxide fiber mesh to fully carry nano hexagonal boron nitride, thereby physically inactivating the HPV virus, thereby efficiently killing the HPV virus and preventing its spread. The inner layer is attached with bamboo fiber and special tea polyphenol fiber with nano-scale graphite phase nitride carbon fiber. The microporous structure inside the bamboo fiber is conducive to the adsorption and removal of moisture and sweat on the skin surface, thereby reducing the environment for bacterial breeding. It works together with the nano-scale graphite phase nitride carbon fiber to effectively absorb light and produce enough active oxygen under light to destroy HPV, destroying the HPV virus on the surface from the bottom. At the same time, the surface layer uses the sharp physical edge of the nano hexagonal boron nitride nanoknife to inactivate the virus. The two-way effect greatly improves the inactivation of the HPV virus, thereby further isolating the infection.

[0022] 2. Moreover, the special tea polyphenol fiber between two adjacent bamboo fibers can further interact with the bamboo fibers. First of all, tea polyphenol fiber has a natural antibacterial effect, which can inhibit the growth of many bacteria and make the fiber have a certain antibacterial effect. This interacts with the bamboo fiber to further improve the antibacterial property of the inner fiber. The tea polyphenol fiber is rich in antioxidant ingredients, which can help resist free radicals and reduce oxidative damage, thereby greatly extending the service life of the bamboo fiber and the surface graphene oxide fiber mesh. At the same time, the nano hexagonal boron nitride attached to the surface can serve as a second line of defense to inactivate HPV virus. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of a pure natural underwear fiber material for physically inactivating HPV virus according to the present invention;

[0025] Figure 2 This is a schematic diagram of the partially unfolded structure of a pure natural underwear fiber material for physically inactivating HPV virus according to the present invention;

[0026] Figure 3 This is a schematic diagram of the partial structure of the graphene oxide fiber mesh in the underwear fiber material for pure natural physical inactivation of HPV virus of the present invention.

[0027] Figure 4 This is a schematic diagram of a physical test of an underwear fiber material that is pure natural and physically inactivates HPV viruses according to the present invention;

[0028] Figure 5 A schematic diagram of a panty crotch fabric made of a panty fiber material that is pure natural and physically inactivates HPV viruses according to the present invention;

[0029] Figure 6 A schematic diagram showing the inactivation of underwear crotch fabric made of underwear fiber material that can physically inactivate HPV virus in a pure natural manner according to the present invention;

[0030] The markings in the attached drawings are described as follows: 1. inner core; 2. bamboo fiber; 3. graphene oxide fiber mesh; 4. special tea polyphenol fiber. DETAILED DESCRIPTION

[0031] The present invention will now be further described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic way, and therefore they only show the structures related to the present invention.

[0032] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0034] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0035] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Combine the following Figure 1-3 The present invention is described in detail. An embodiment of the present invention is as follows: a pure natural underwear fiber material for physically inactivating HPV virus, comprising an inner core 1, bamboo fiber 2, special tea polyphenol fiber 4 and graphene oxide fiber net 3, wherein in terms of material selection, the inner core 1 is made of pure cotton, two strands of the bamboo fiber 2 and one strand of the special tea polyphenol fiber 4 are connected to the inner core 1 by spiral twisting, and the special tea polyphenol fiber 4 is arranged between the two bamboo fibers 2, so that a groove is formed between the special tea polyphenol fiber 4 and the bamboo fiber 2 on the surface layer, and at this time, the special graphene oxide fiber net 3 is coated on the outside of the bamboo fiber 2 and the special tea polyphenol fiber 4;

[0037] It should be noted that nano-scale graphite phase carbon nitride fibers are arranged on the outer surface of the bamboo fiber 2, and the graphite phase carbon nitride (g-C3N4) material is prepared into nano-scale graphite phase carbon nitride fibers by a sol-gel method, wherein the fiber diameter is controlled to be 18-25 nm, preferably 20 nm, so that the adhesion effect of the fiber on the surface of the bamboo fiber 2 is the best;

[0038] The nanometer-scale graphite phase carbon nitride fibers can be directly attached to the bamboo fiber 2 by electrospinning, and the bamboo fiber 2 is used as a receiving substrate, so that the nanometer-scale fibers are directly deposited on its surface. However, since this will lead to uneven distribution of the nanometer-scale fibers, we further adopt the sol-gel method, and then directly attach the nanometer-scale graphite phase carbon nitride fibers to the bamboo fiber 2 by impregnation, and assist with ultrasonic technology during the process, so that the uniformity of the distribution of the nanometer-scale fibers can be effectively ensured, thereby forming the bamboo fiber 2 attached with the nanometer-scale graphite phase carbon nitride fibers;

[0039] It should also be noted that nano-scale hexagonal boron nitride is attached to the special tea polyphenol fiber 4 and the graphene oxide fiber web 3, wherein the nano-scale hexagonal boron nitride is SP2 hybrid hexagonal boron nitride, and the thickness is not higher than 1nm, the particle size is controlled at 1-30μm, preferably 15μm, and is evenly distributed on the fiber surface of the special tea polyphenol fiber 4 and the graphene oxide fiber web 3, and the exposure rate is not less than 70%;

[0040] Among them, hexagonal boron nitride is a two-dimensional layered material of graphite. It is a crystal composed of nitrogen atoms and boron atoms, 43.6% of boron and 56.4% of nitrogen. Hexagonal boron nitride can be called white graphite because of its structure and properties similar to graphite. The SP2 hybrid hexagonal boron nitride is a white polycrystalline material with lubricating properties and a layered structure similar to graphite. The modified material is a rare SP3 hybrid wurtzite structure similar to hexagonal carbon, with a sharp physical edge of a nanoknife, catalytic and cutting action on viruses and excellent biocompatibility.

[0041] Therefore, hexagonal boron nitride nanocomposite fiber materials have a strong anti-HPV virus inactivation rate in textiles and biomedicine and will not cause secondary drug resistance during long-term use. Hexagonal boron nitride two-dimensional nanomaterials have good cell safety and tissue compatibility. This material can be used in the crotch of underwear to significantly improve its antiviral and bacterial properties, thereby effectively killing HPV viruses and preventing their spread.

[0042] Therefore, when this material is used as the bottom crotch of underwear, the graphene oxide fiber mesh 3 with nano hexagonal boron nitride on the surface is in direct contact with the human body, and the graphene oxide fiber has high flexibility, so it can be in contact with the human body to a great extent, and can adapt to the depressions between the skin to achieve comprehensive protection, and also has a certain inhibitory effect on viruses. It can be used as a physical barrier on the surface to reduce the spread of HPV. The graphene oxide fiber has a large specific surface area and good drug loading capacity, and can fully carry nano hexagonal boron nitride, especially SP2 hybrid hexagonal boron nitride attached to its surface, so as to use hexagonal boron nitride to achieve physical inactivation of HPV virus, thereby efficiently killing HPV virus and preventing its spread;

[0043] At the same time, the inner layer is attached with bamboo fiber 2 and special tea polyphenol fiber 4 with nano-scale graphite phase nitride carbon fiber. The bamboo fiber itself has antibacterial properties and can inhibit the growth of many bacteria, including common pathogens such as Staphylococcus aureus and Escherichia coli. The microporous structure inside the bamboo fiber is conducive to the adsorption and removal of moisture and sweat on the skin surface, thereby reducing the environment for bacterial growth. The nano-scale graphite phase nitride carbon fiber distributed on the surface of the bamboo fiber is a polymer with a two-dimensional layered structure and has good visible light absorption capacity. It is exposed from the mesh and can absorb light more effectively and produce enough active oxygen under light to destroy HPV, destroying the HPV virus on the surface from the bottom. At the same time, the surface layer uses the sharp physical edge of the nano hexagonal boron nitride nanoknife to inactivate the virus. The two-way effect greatly improves the inactivation of the HPV virus, thereby further isolating the infection.

[0044] Moreover, the special tea polyphenol fiber 4 between two adjacent bamboo fibers can further interact with the bamboo fibers. First, the tea polyphenol fiber has a natural antibacterial effect, which can inhibit the growth of various bacteria and make the fiber have a certain antibacterial effect. This interacts with the bamboo fiber to further improve the antibacterial property of the inner fiber. The tea polyphenol fiber contains rich antioxidant ingredients, which can help resist free radicals and reduce oxidative damage, thereby greatly extending the service life of the bamboo fiber and the graphene oxide fiber mesh on the surface. At the same time, the nano hexagonal boron nitride attached to the surface can be used as a second line of defense to inactivate HPV virus.

[0045] At the same time, the special tea polyphenol fiber 4 also contains low-concentration tea tree oil liposomes, which further improves the antibacterial property of the inner layer and can resist more viruses and bacteria.

[0046] In addition, the present invention also provides a method for preparing a pure natural underwear fiber material for physically inactivating HPV virus, comprising the following steps:

[0047] First, the special tea polyphenol fiber 4 attached with hexagonal boron nitride is prepared.

[0048] 1. Raw material preparation: preparing tea polyphenol fiber, SP2 hybrid hexagonal boron nitride, 0.5%-1% tea tree oil liposome, amino modified solution and phosphate buffer solution of pH 7.2-7.4;

[0049] Second: fiber amination. After the tea polyphenol fiber is aminated, its adhesion to the liposome can be effectively improved. After cleaning the surface of the tea polyphenol fiber, it is dried and then put into the amino-modified solution to aminate the fiber surface. Deionized water is used to wash it three times with the assistance of ultrasound. Ultrapure water is used for the fourth time to completely wash it. After thorough washing, it is dried at low temperature at 10-20°C.

[0050] Third: Liposome combination, dissolving 0.5%-1% tea tree oil liposomes in the phosphate buffer to form a mixed solution, then spreading the amino tea polyphenol fibers and immersing them in the mixed solution, after the reaction is completed, washing them twice with deionized water under the assistance of ultrasound, then washing them completely with ultrapure water, and finally drying them with nitrogen at room temperature to form tea polyphenol fibers with tea tree oil liposomes;

[0051] Fourth: Dispersion and attachment. Add an appropriate amount of SP2 hybrid hexagonal boron nitride to isopropanol solvent, use ultrasonic dispersion to evenly disperse the SP2 hybrid hexagonal boron nitride in the isopropanol solvent to form a uniform suspension, spread the tea polyphenol fibers with tea tree oil liposomes and evenly immerse them in the above suspension, let the SP2 hybrid hexagonal boron nitride adhere to the tea polyphenol fibers with tea tree oil liposomes, remove them after they are fully attached, use deionized water to wash them three times with the assistance of ultrasound, and use ultrapure water for the fourth time to completely wash them. After thorough washing, carry out low-temperature drying at 10-20°C.

[0052] Next, the preparation of the graphene oxide fiber mesh 3 attached with nano hexagonal boron nitride is the same as the fourth step above, the graphene oxide fiber mesh is spread evenly and immersed in the above suspension, the SP2 hybrid hexagonal boron nitride is attached to the tea polyphenol fiber with tea tree oil liposomes, and after sufficient attachment, it is fished out and washed three times with deionized water under the assistance of ultrasound, and the fourth time is completely washed with ultrapure water. After thorough washing, it is dried at low temperature and controlled at 10-20°C to finally form a graphene oxide fiber mesh attached with nano hexagonal boron nitride;

[0053] Secondly, an appropriate amount of nano-scale graphite phase carbon nitride fibers is added to an isopropanol solvent, and the nano-scale graphite phase carbon nitride fibers are uniformly dispersed in the isopropanol solvent by ultrasonic dispersion to form a uniform nanofiber suspension, and then the finished bamboo fiber 2 is immersed in the suspension, and the immersion time and the thickness of the surface nanomaterial are adjusted according to the needs, so as to form bamboo fibers with nano-scale graphite phase carbon nitride fibers attached thereto;

[0054] If mass production is required, the electrospinning method can be used to prepare nano-scale graphite phase carbon nitride fibers. Although the distribution of graphite phase carbon nitride is uneven, the output is high and the cost is low.

[0055] Finally, the inner core raw material, bamboo fiber raw material and special tea polyphenol fiber raw material are sent to the twisting equipment for twisting, and then the fiber raw material formed after twisting is coated with graphene oxide fiber to form a finished product. The finished fiber raw material can be used to prepare the bottom crotch of underwear, etc.

[0056] In summary, the present invention has a powerful effect on inactivating HPV virus:

[0057] The graphene oxide fiber mesh 3 with nano hexagonal boron nitride on the surface is in direct contact with the human body, and the nano hexagonal boron nitride carried physically inactivates the HPV virus, thereby efficiently killing the HPV virus and preventing its spread; the bamboo fiber and special tea polyphenol fiber attached with nano-scale graphite phase nitride carbon fiber on the inner layer, the microporous structure inside the bamboo fiber is conducive to the adsorption and removal of moisture and sweat on the skin surface, thereby reducing the environment for bacterial breeding, and the bamboo fiber and the nano-scale graphite phase nitride carbon fiber work together to effectively absorb light and produce enough active oxygen under light to destroy HPV, destroying the HPV virus on the surface from the bottom, and at the same time, the surface layer uses the sharp physical edge of the nano hexagonal boron nitride nano knife to inactivate the virus, the two-way action greatly improves the inactivation of the HPV virus, thereby further isolating the infection;

[0058] Moreover, the special tea polyphenol fiber between two adjacent bamboo fibers can further interact with the bamboo fibers. First of all, tea polyphenol fiber has a natural antibacterial effect, which can inhibit the growth of many bacteria and make the fiber have a certain antibacterial effect. This interacts with the bamboo fiber to further improve the antibacterial property of the inner fiber. The tea polyphenol fiber is rich in antioxidant ingredients, which can help resist free radicals and reduce oxidative damage, thereby greatly extending the service life of the bamboo fiber and the surface graphene oxide fiber mesh. At the same time, the nano hexagonal boron nitride attached to the surface can serve as a second line of defense to inactivate HPV virus.

[0059] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited to it. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the invention. Therefore, the protection scope of the invention should be based on the protection scope defined in the claims.

Claims

1. A pure natural physical HPV virus inactivating underwear fiber material, comprising an inner core 1, Features: The inner core 1 is provided with bamboo fiber 2 and special tea polyphenol fiber 4, the outer surface of the bamboo fiber 2 is provided with nano-scale graphite phase nitrided carbon fiber, the outer side of the bamboo fiber 2 and the special tea polyphenol fiber 4 is coated with graphene oxide fiber mesh 3, and nano-scale hexagonal boron nitride is attached to the special tea polyphenol fiber 4 and the graphene oxide fiber mesh 3 respectively.

2. The underwear fiber material for physically inactivating HPV virus according to claim 1, Features: The bamboo fibers 2 and the special tea polyphenol fibers 4 are spirally twisted and connected to the inner core 1 , and the special tea polyphenol fibers 4 are arranged between the two bamboo fibers 2 .

3. The underwear fiber material for physically inactivating HPV virus according to claim 2, Features: The graphite phase nitride carbon fiber has a diameter of 18-25 nm and is attached to the bamboo fiber 2 by an impregnation method.

4. The underwear fiber material for physically inactivating HPV virus according to claim 1, Features: The nano-scale hexagonal boron nitride is SP2 hybrid hexagonal boron nitride, and has a thickness of no more than 1 nm and a particle size controlled within a range of 1-30 μm.

5. The underwear fiber material for physically inactivating HPV virus according to claim 4, Features: The exposure rate of the nano-scale hexagonal boron nitride on the surface of the graphene oxide fiber web 3 is not less than 70%.

6. The underwear fiber material for physically inactivating HPV virus according to claim 1, Features: The special tea polyphenol fiber 4 contains tea tree oil liposomes.

7. A method for preparing a pure natural underwear fiber material for physically inactivating HPV virus, comprising preparing a special tea polyphenol fiber 4 attached with hexagonal boron nitride, Features: The following steps are involved: Step 1: raw material preparation, preparing tea polyphenol fiber, SP2 hybrid hexagonal boron nitride, 0.5%-1% tea tree oil liposome, amino modified solution and pH 7.2-7.4 phosphate buffer; Step 2: fiber amination, cleaning the surface of the tea polyphenol fiber, drying it, and then putting it into the amino modification solution to perform amination treatment on the fiber surface, taking it out, cleaning it, and then drying it; Step 3: Liposome combination, dissolving 0.5%-1% tea tree oil liposomes in the phosphate buffer to form a mixed solution, and then spreading the amino tea polyphenol fibers and immersing them in the mixed solution. After the reaction is completed, washing and drying are performed to form tea polyphenol fibers with tea tree oil liposomes; Step 4: Dispersion and attachment. Add an appropriate amount of SP2 hybrid hexagonal boron nitride to isopropanol solvent, use ultrasonic dispersion to evenly disperse the SP2 hybrid hexagonal boron nitride in the isopropanol solvent to form a uniform suspension, spread the tea polyphenol fibers with tea tree oil liposomes and evenly immerse them in the above suspension, allow the SP2 hybrid hexagonal boron nitride to attach to the tea polyphenol fibers with tea tree oil liposomes, and remove them after they are fully attached, wash and dry them.

8. The method for preparing a pure natural underwear fiber material for physically inactivating HPV virus according to claim 7, Features: The cleaning is performed under ultrasonic conditions for no less than three times, and deionized water is used for cleaning, and the most recent cleaning is performed using ultrapure water.

9. The method for preparing a pure natural underwear fiber material for physically inactivating HPV virus according to claim 7, Features: The drying in step 3 is carried out by air drying with nitrogen.

10. The method for preparing a pure natural underwear fiber material for physically inactivating HPV virus according to claim 7, Features: The drying in step 2 and step 4 is carried out by low temperature drying.

Images