Antifouling and antibacterial medical clothes fabric and preparation method thereof

Abstract

The invention relates to the technical field of medical clothes fabrics, in particular to an antifouling and antibacterial medical clothes fabric and a preparation method thereof. The invention discloses an antifouling antibacterial medical clothes fabric, which consists of two parts, namely a basic fabric and antibacterial coating liquid, wherein the antibacterial coating liquid is prepared from the following components in percentage: 1.5 to 2 percent of silver ion antibacterial ball powder, 2 to 5 percent of tea tree oil, 2 to 5 percent of rosemary extract, 2 to 5 percent of lauryl phosphate, 25 to 30 percent of polyurethane, 20 to 25 percent of acrylic resin, 1 to 2 percent of citric acid, 2 to 5 percent of ethylenediamine tetraacetic acid, 1 to 2 percent of benzophenone compound, 0.5 to 1 percent of benzoic acid, 2 to 5 percent of polyethylene glycol terephthalate and 10 to 15 percent of silicon resin; the prepared fabric can effectively inhibit breeding and spreading of pathogenic microorganisms such as bacteria and viruses, the spreading risk of the bacteria is reduced, meanwhile, adhesion of stains and liquid can be resisted, dirt accumulation of clothes can be reduced, and the clothes washing frequency and time in nursing work can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care clothing fabrics, and specifically relates to an anti-fouling and antibacterial medical care clothing fabric and a preparation method thereof. Background Art

[0002] With the progress of medical technology and the popularization of medical services, medical institutions are facing more complex infection control and hygiene management problems. During the process of dealing with infectious diseases, wound care, and surgeries, medical staff are prone to come into contact with bacteria, viruses, blood, and other body fluids, which not only threatens the lives of patients but also increases the burden on medical resources.

[0003] Existing medical care clothing uses functional fabrics such as waterproof and anti-fouling ones, but these materials lead to poor breathability, easy sweating after wearing, increased discomfort, and may cause skin problems after long-term wearing. At the same time, existing medical care clothing lacks effective antibacterial components or its antibacterial performance is not persistent. As the number of wearings and washings increases, the antibacterial effect on the surface of the medical care clothing will gradually weaken, thus unable to effectively prevent the breeding and spread of germs.

[0004] In view of the above problems, the present invention provides a solution. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-fouling and antibacterial medical care clothing fabric and a preparation method thereof, which have excellent anti-fouling and antibacterial capabilities.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: An anti-fouling and antibacterial medical care clothing fabric is composed of a base fabric and an antibacterial coating solution. The antibacterial coating solution is composed of the following percentage components: 1.5 - 2% silver ion antibacterial ball powder, 2 - 5% tea tree oil, 2 - 5% rosemary extract, 2 - 5% lauryl phosphate, 25 - 30% polyurethane, 20 - 25% acrylic resin, 1 - 2% citric acid, 2 - 5% ethylenediaminetetraacetic acid, 1 - 2%, 1 - 2% benzophenone compounds, 0.5 - 1% benzoic acid, 2 - 5% polyethylene terephthalate, and 10 - 15% silicone resin; The preparation method of the antibacterial coating solution includes the following steps: A1: Add rosemary extract to pure water, stir with a magnetic stirrer for 30 min, set the rotation speed of the magnetic stirrer at 600 - 800 rpm, and the temperature at 45 - 50°C. After stirring, add tea tree oil, lauryl phosphate, silicone resin, and ethylenediaminetetraacetic acid, set the temperature at 25 - 30°C, keep the rotation speed unchanged, and stir for another 30 min to obtain a primary antibacterial coating mixture; A2: Mix polyurethane and acrylic resin and add them to a homogenizer. Homogenize for 30 min, then transfer to a stainless-steel reactor. Add benzophenone compounds and polyethylene terephthalate to the stainless-steel reactor, and use a magnetic stirrer to stir for 15 min. Set the rotation speed of the magnetic stirrer to 600 - 800 rpm and the temperature to 55 - 60 °C. After stirring, obtain the antibacterial coating base mixture. A3: Add silver ion antibacterial balls to a crusher. Set the crushing particle size to 500 mesh and crush for 30 min. After crushing, pass through a 500-mesh sieve, collect the sieved product to obtain silver ion antibacterial ball powder. Mix the primary antibacterial coating mixture and the antibacterial coating base mixture and add them to a homogenizer. Then add the silver ion antibacterial ball powder, turn on the homogenizer and homogenize for 30 min. After homogenization, transfer to a stainless-steel reactor. Add benzoic acid to the stainless-steel reactor, use a magnetic stirrer to stir evenly, set the rotation speed of the magnetic stirrer to 1000 - 1200 rpm, and the temperature to 65 - 70 °C. Stir and mix evenly for 30 min. After stirring, turn off the rotor of the magnetic stirrer, keep the temperature unchanged, and let it stand for 1 - 1.5 h. A4: After standing, turn on the rotor of the magnetic stirrer, set the rotation speed to 600 - 800 rpm, and the temperature to 55 - 60 °C. Stir for 30 min. After stirring, let it stand for 30 - 45 min. After standing, obtain the antibacterial coating solution.

[0007] Furthermore, the base fabric is a base fabric made by mixing and pressing a polyester fiber layer, a nylon fiber layer, and a cotton fiber layer. Among them, the polyester fiber layer is the outermost fabric layer with a thickness of 0.4 mm; the nylon fiber layer is the middle fabric layer with a thickness of 0.2 mm; the cotton fiber is the innermost fabric layer with a thickness of 0.5 mm. Furthermore, the rosemary extract is a yellowish-brown fine rosemary powder with a particle size of 200 mesh and a specification of 10:1; the silver ion antibacterial balls described in step A3 are silver ion antibacterial ceramic balls with a particle size of 50 mesh; the benzophenone compound is 2-hydroxy-4-n-octyloxybenzophenone.

[0008] Furthermore, a preparation method of an anti-fouling and antibacterial medical uniform fabric includes the following steps: B1: Put the base fabric into an ultrasonic cleaner, set the ultrasonic frequency to 80 - 100 KHz, add 1.5 - 2 L of deionized water and ultrasonically clean for 20 min. After cleaning, transfer to an oven, set the oven air speed to 1.5 m / s, and the temperature to 60 °C and dry for 15 min. B2: Add the polytetrafluoroethylene coating liquid into a magnetic stirrer, set the stirring rate to 500 - 600 rpm, stir for 30 min. After stirring, pass the polytetrafluoroethylene coating liquid through a 200 - mesh filter sieve, and transfer the filtered polytetrafluoroethylene coating liquid to a pressure tank for repeated stirring for 15 - 20 min; B3: Transfer the base fabric to a spraying box, use a spray gun to spray the polytetrafluoroethylene coating liquid that has been repeatedly stirred on the surface of the base fabric. Subsequently, transfer the base fabric to a surface drying furnace, set the temperature of the surface drying furnace to 65 - 70 °C, and the surface drying time to 15 - 20 min; B4: Transfer the base fabric that has been surface - dried to a curing furnace, set the curing temperature to 70 - 75 °C, and the curing time to 5 - 10 min. After curing, take out the base fabric and place it in a room - temperature environment for natural cooling. After cooling, check whether there are bubbles and uncoated areas on the surface of the polytetrafluoroethylene coating liquid sprayed on the base fabric. Use a scraper to scrape off the antibacterial coating liquid on the surface of the base fabric in the areas with bubbles and uncoated areas. After scraping, transfer the base fabric to the spraying box and repeat steps B2 - B3 until there are no bubbles and uncoated areas on the surface of the base fabric; B5: Transfer the base fabric with no bubbles and uncoated areas on its surface to the spraying box, then turn the base fabric over and repeat steps B2 - B4; B6: Add the antibacterial coating liquid into a magnetic stirrer, set the stirring rate to 500 - 600 rpm, stir for 30 min. After stirring, pass the antibacterial coating through a 200 - mesh filter sieve, and transfer the filtered antibacterial coating liquid to a pressure tank for repeated stirring for 15 - 20 min; B7: Transfer the base fabric with no bubbles and uncoated areas on its surface to the spraying box. Use a spray gun to spray the repeatedly stirred antibacterial coating liquid on the polytetrafluoroethylene coating on the surface of the base fabric that has been cured. Subsequently, transfer the base fabric to a surface drying furnace, set the temperature of the surface drying furnace to 45 - 50 °C, and the surface drying time to 15 - 20 min; B8: After surface drying, transfer it to a curing furnace, set the curing temperature to 50 - 55 °C, and the curing time to 5 - 10 min. After curing, take it out and place it in a room - temperature environment for natural cooling. After cooling, check whether there are bubbles and uncoated areas on the surface of the antibacterial coating liquid sprayed on the base fabric. Use a scraper to scrape off the antibacterial coating liquid on the surface of the base fabric in the areas with bubbles and uncoated areas. After scraping, transfer the base fabric to the spraying box and repeat steps B7 - B8 until there are no bubbles and uncoated areas on the surface of the base fabric; B9: Transfer the base fabric with no bubbles and uncoated areas on its surface to the spraying box, then turn the base fabric over and repeat steps B6 - B8 to obtain the stain - resistant and antibacterial medical uniform fabric.

[0009] Further, the spraying thickness of the polytetrafluoroethylene coating solution in step B3 is 10-15 um; the spraying thickness of the antibacterial coating solution in step B7 is 15-20 um; In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: the fabric prepared by the present invention can effectively inhibit the growth and spread of pathogenic microorganisms such as bacteria and viruses, contribute to reducing cross-infection between medical staff and patients, especially when dealing with wounds, blood or other body fluids, can reduce the risk of bacterial transmission, and at the same time can resist the attachment of stains and liquids, can reduce the accumulation of dirt on clothes, contribute to maintaining the cleanliness and professional appearance of clothes, and reduce the frequency and time of laundry in nursing work. Specific Embodiments

[0010] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0011] The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and are carried out according to the techniques or conditions described in the literature in this field or according to the product instructions. The materials, reagents, etc. used in the following embodiments can be obtained from commercial channels unless otherwise specified. Example 1

[0012] 1: Add 50 g of rosemary extract to 500 g of pure water, stir with a magnetic stirrer for 30 min, set the rotation speed of the magnetic stirrer to 800 rpm, set the temperature to 50 °C, after stirring, add 50 g of tea tree oil, 50 g of lauryl phosphate, 150 g of silicone resin and 20 g of ethylenediaminetetraacetic acid, set the temperature to 30 °C, keep the rotation speed unchanged, and stir for another 30 min. After stirring, obtain the primary mixture of the antibacterial coating; 2: Mix 300 g of polyurethane and 250 g of acrylic resin and add them to a homogenizer, homogenize for 30 min, then transfer to a stainless steel reaction kettle. Add 10 g of benzophenone compounds and 20 g of polyethylene terephthalate to the stainless steel reaction kettle, stir with a magnetic stirrer for 15 min, set the rotation speed of the magnetic stirrer to 800 rpm, set the temperature to 60 °C, and after stirring, obtain the base mixture of the antibacterial coating; 3: Add 20 g of silver ion antibacterial balls into a crusher, set the crushing particle size to 500 mesh, crush for 30 min, after crushing, pass through a 500-mesh sieve, collect the sieved product to obtain silver ion antibacterial ball powder. Mix the primary antibacterial coating mixture and the base antibacterial coating mixture and add them into a homogenizer, then add 15 g of silver ion antibacterial ball powder, turn on the homogenizer and homogenize for 30 min. After homogenization, transfer it to a stainless steel reaction kettle, add 5 g of benzoic acid into the stainless steel reaction kettle, stir evenly with a magnetic stirrer, set the rotation speed of the magnetic stirrer to 1200 rpm, the temperature to 70 °C, stir and mix evenly for 30 min. After stirring, turn off the rotor of the magnetic stirrer, keep the temperature unchanged, and let it stand for 1.5 h; 4: After standing, turn on the rotor of the magnetic stirrer, set the rotation speed to 800 rpm, set the temperature to 60 °C, stir for 30 min, after stirring, let it stand for 45 min. After standing, obtain the antibacterial coating solution prepared in Example 1.

[0013] Table 1, Reagent parameter table for Example 1: Example Two

[0014] 1: Add 20 g of rosemary extract into 200 g of pure water, stir with a magnetic stirrer for 30 min, set the rotation speed of the magnetic stirrer to 600 rpm, set the temperature to 45 °C. After stirring, add 20 g of tea tree oil, 20 g of lauryl phosphate, 100 g of silicone resin and 20 g of ethylenediaminetetraacetic acid, set the temperature to 25 °C, keep the rotation speed unchanged, stir repeatedly for 30 min, and obtain the primary antibacterial coating mixture after stirring; 2: Mix 250 g of polyurethane and 200 g of acrylic resin and add them into a homogenizer, homogenize for 30 min, then transfer it to a stainless steel reaction kettle. Add 10 g of benzophenone compounds and 20 g of polyethylene terephthalate into the stainless steel reaction kettle, stir with a magnetic stirrer for 15 min, set the rotation speed of the magnetic stirrer to 600 rpm, set the temperature to 55 °C, and obtain the base antibacterial coating mixture after stirring; 3: Add 30 g of silver ion antibacterial balls into a crusher, set the crushing particle size to 500 mesh, crush for 30 min, after crushing, pass through a 500-mesh sieve, collect the sieved product to obtain silver ion antibacterial ball powder. Mix the primary antibacterial coating mixture and the base antibacterial coating mixture and add them into a homogenizer, then add 20 g of silver ion antibacterial balls, turn on the homogenizer and homogenize for 30 min. After homogenization, transfer it to a stainless steel reaction kettle, add 10 g of benzoic acid into the stainless steel reaction kettle, stir evenly with a magnetic stirrer, set the rotation speed of the magnetic stirrer to 1000 rpm, the temperature to 65 °C, stir and mix evenly for 30 min. After stirring, turn off the rotor of the magnetic stirrer, keep the temperature unchanged, and let it stand for 1 h; 4: After the static state is completed, turn on the rotor of the magnetic stirrer, set the rotation speed to 600 rpm, set the temperature to 55 °C, stir for 30 min, let it stand for 30 min after stirring is completed, and obtain the antibacterial coating liquid prepared in Example 2 after standing is completed.

[0015] Table 2, Reagent Parameter Table for Example 2: Example Three

[0016] 1: Put the base fabric into an ultrasonic cleaner, set the ultrasonic frequency to 100 KHz, add 2 L of deionized water and ultrasonically clean for 20 min. After cleaning is completed, transfer it to an oven, set the oven air speed to 1.5 m / s, and dry at a temperature of 60 °C for 15 min; 2: Add the polytetrafluoroethylene coating liquid to a magnetic stirrer, set the stirring rate to 600 rpm, stir for 30 min. After stirring is completed, pass the polytetrafluoroethylene coating liquid through a 200-mesh filter screen, and transfer the filtered polytetrafluoroethylene coating liquid to a pressure tank and stir for another 20 min; 3: Transfer the base fabric to a spraying box, use a spray gun to spray the repeatedly stirred polytetrafluoroethylene coating liquid on the surface of the base fabric, with a spraying thickness of 10 μm. Then transfer the base fabric to a surface drying furnace, set the surface drying furnace temperature to 70 °C, and the surface drying time to 20 min; 4: Transfer the base fabric with surface drying completed to a curing furnace, set the curing temperature to 75 °C, and the curing time to 10 min. After curing is completed, take out the base fabric and let it cool naturally in a room temperature environment. After cooling is completed, check that there are no bubbles and uncoated areas on the surface of the base fabric sprayed with the polytetrafluoroethylene coating liquid; 5: Transfer the base fabric with no bubbles and uncoated areas on its surface to a spraying box, then turn the base fabric over and repeat steps 2 - 4; 6: Add the antibacterial coating liquid prepared in Example 1 to a magnetic stirrer, set the stirring rate to 600 rpm, stir for 30 min. After stirring is completed, pass the antibacterial coating through a 200-mesh filter screen, and transfer the filtered antibacterial coating liquid to a pressure tank and stir for another 20 min; 7: Transfer the base fabric with no bubbles and uncoated areas on its surface to a spraying box, use a spray gun to spray the repeatedly stirred antibacterial coating liquid on the polytetrafluoroethylene coating cured on the surface of the base fabric, with a spraying thickness of 15 μm. Then transfer the base fabric to a surface drying furnace, set the surface drying furnace temperature to 50 °C, and the surface drying time to 20 min; 8: After the surface drying is completed, transfer it to a curing furnace, set the curing temperature at 55 °C and the curing time at 10 min. After curing is completed, take it out and let it cool naturally in a room temperature environment. After cooling is completed, check that there are no bubbles and uncoated areas on the antibacterial coating solution sprayed on the surface of the base fabric; 9: Transfer the base fabric without bubbles and uncoated areas on its surface to a spraying box, then turn the base fabric over, and repeat steps 6 - 8 to obtain the stain-resistant and antibacterial medical uniform fabric prepared in Example 3.

[0017] Table 3, Reagent Parameter Table for Example 3: Drug Name Source Model Parameters Polytetrafluoroethylene Coating Liquid Suzhou Huixuan New Materials Co., Ltd. DF-301 25kg Example Four

[0018] 1: Put the base fabric into an ultrasonic cleaner, set the ultrasonic frequency at 80 KHz, add 1.5 L of deionized water and ultrasonically clean for 20 min. After cleaning is completed, transfer it to an oven, set the oven air velocity at 1.5 m / s and the temperature at 60 °C and dry for 15 min; 2: Add the polytetrafluoroethylene coating solution to a magnetic stirrer, set the stirring rate at 500 rpm and stir for 30 min. After stirring is completed, pass the polytetrafluoroethylene coating solution through a 200-mesh filter sieve, and transfer the filtered polytetrafluoroethylene coating solution to a pressure tank and stir for another 15 min; 3: Transfer the base fabric to a spraying box, use a spray gun to spray the repeatedly stirred polytetrafluoroethylene coating solution on the surface of the base fabric, with a spraying thickness of 15 μm. Then transfer the base fabric to a surface drying furnace, set the surface drying furnace temperature at 65 °C and the surface drying time at 20 min; 4: Transfer the base fabric with surface drying completed to a curing furnace, set the curing temperature at 75 °C and the curing time at 10 min. After curing is completed, take out the base fabric and let it cool naturally in a room temperature environment. After cooling is completed, check that there are no bubbles and uncoated areas on the polytetrafluoroethylene coating solution sprayed on the surface of the base fabric; 5: Transfer the base fabric without bubbles and uncoated areas on its surface to a spraying box, then turn the base fabric over, and repeat steps 2 - 4; 6: Add the antibacterial coating solution prepared in Example 2 to a magnetic stirrer, set the stirring rate at 500 rpm and stir for 30 min. After stirring is completed, pass the antibacterial coating through a 200-mesh filter sieve, and transfer the filtered antibacterial coating solution to a pressure tank and stir for another 20 min; 7: Transfer the base fabric without air bubbles and uncoated areas on its surface to the spraying box. Use a spray gun to spray the antibacterial coating liquid that has been repeatedly stirred onto the polytetrafluoroethylene coating on the surface of the base fabric. The spraying thickness is 20 μm. Then transfer the base fabric to a surface drying furnace, set the temperature of the surface drying furnace to 50 °C, and the surface drying time to 15 min; 8: After surface drying is completed, transfer it to a curing furnace, set the curing temperature to 50 - 55 °C, and the curing time to 5 - 10 min. After curing is completed, take it out and let it cool naturally in a room temperature environment. After cooling is completed, check that there are no air bubbles and uncoated areas on the surface of the base fabric sprayed with the antibacterial coating liquid; 9: Transfer the base fabric without air bubbles and uncoated areas on its surface to the spraying box. Then turn the base fabric over, and repeat steps 6 - 8 to obtain the stain-resistant and antibacterial medical uniform fabric prepared in Example 4.

[0019] Table 4, Reagent Parameter Table for Example 4: Drug Name Source Model Parameters Polytetrafluoroethylene Coating Liquid Suzhou Huixuan New Materials Co., Ltd. DF-301 25kg Comparative Example 1: Select Example 1 of the Chinese patent with the publication number CN102978782A as Comparative Example 1.

[0020] Comparative Example 2: Select Example 1 of the Chinese patent with the publication number CN112716083A as Comparative Example 2.

[0021] Physical Property Test: According to Method A, the metal scraping method in GB / T 4744 - 2009, with a scraping head diameter of 3 mm and a pressure of 10 N, conduct a scratch resistance test on the fabrics prepared in Example 3, the fabrics prepared in Example 4, the fabrics prepared in Comparative Example 1, and the fabrics used in Comparative Example 2; according to the General Technical Requirements for Medical Protective Clothing specified in the standard GB / T 29862 - 2013, conduct a physical property test on the fabrics prepared in Example 3, the fabrics prepared in Example 4, the fabrics prepared in Comparative Example 1, and the fabrics used in Comparative Example 2. The dyeing operations of each sample are the same; the results are expressed in a 5 - level system.

[0022] Table 5, Physical Property Test Results:

[0023] Air Permeability Test: Cut the fabrics prepared in Example 3, the fabrics prepared in Example 4, the fabrics prepared in Comparative Example 1, and the fabrics used in Comparative Example 2 into 100 cm 2Small pieces. Using the Mocon Permatran-W 3 / 31 steam transmission rate tester, set the temperature at 37.8 °C and the humidity at 85% RH. One side of the container is filled with distilled water to provide a steam source. Subsequently, the small pieces cut from the fabrics prepared in Example 3, the fabrics prepared in Example 4, the fabrics prepared in Comparative Example 1, and the fabrics used in Comparative Example 2 are fixed in the tester. At the same time, check the tightness of the test environment. Start the tester to apply water vapor to one side of the sample, and simultaneously measure the amount of water vapor passing through from the other side. Calculate the amount of water vapor passing through to evaluate the air permeability performance; Table 6, Test results of air permeability performance: Group Air Permeability Evaluation of the Tester / level Example 3 2 Example 4 2 Comparative Example 1 2 Comparative Example 2 4 Anti-fouling and antibacterial performance test: Conduct anti-fouling and antibacterial performance tests on the fabrics prepared in Example 3, the fabrics prepared in Example 4, the fabrics prepared in Comparative Example 1, and the fabrics used in Comparative Example 2 in accordance with "Antibacterial Textiles - Part 3: Determination of Antibacterial Properties" specified in GB / T 20944.3-2008 and "Determination of Antifouling Properties of Textiles" specified in GB / T 23328-2009; The anti-fouling rating criteria are as follows: Grade A: Dirt is not easily attached to the surface of the fabric. Liquids (such as water or oil) hardly penetrate or spread, and the surface has a strong anti-fouling effect.

[0024] Grade B: The fabric can resist general dirt, but some liquids or dirt will spread, and the anti-fouling ability is good.

[0025] Grade C: The fabric has a poor resistance to dirt, and dirt penetration or attachment may occur.

[0026] Table 7, Test results of anti-fouling and antibacterial performance: Group Anti-fouling Property Evaluation / level Antibacterial Inhibition Rate Antibacterial Inhibition Rate after 30 Washings Example 3 A 99% 94% Example 4 A 99% 95% Comparative Example 1 A 99% 95% Comparative Example 2 B 99% 91% By analyzing Table 5, Table 6, and Table 7, it can be seen that the medical uniform fabrics prepared in Example 3 and Example 4 not only have excellent physical properties and are not easily damaged during conventional friction, but also have good air permeability. At the same time, dirt is not easily attached to the surface, liquids (such as water or oil) hardly penetrate or spread, and the surface has a strong anti-fouling effect. The antibacterial inhibition rate can reach over 94% after 30 washes.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An anti-fouling and antibacterial medical uniform fabric, characterized in that, It consists of a base fabric and an antibacterial coating solution. The antibacterial coating solution is composed of the following percentage components: 1.5 - 2% silver ion antibacterial sphere powder, 2 - 5% tea tree oil, 2 - 5% rosemary extract, 2 - 5% lauryl phosphate, 25 - 30% polyurethane, 20 - 25% acrylic resin, 1 - 2% citric acid, 2 - 5% ethylenediaminetetraacetic acid, 1 - 2% benzophenone compound, 0.5 - 1% benzoic acid, 2 - 5% polyethylene terephthalate, and 10 - 15% silicone resin; The preparation method of the antibacterial coating solution includes the following steps: A1: Add rosemary extract into pure water, stir with a magnetic stirrer for 30 min, set the rotation speed of the magnetic stirrer at 600 - 800 rpm, set the temperature at 45 - 50 °C. After stirring, add tea tree oil, lauryl phosphate, silicone resin, and ethylenediaminetetraacetic acid, set the temperature at 25 - 30 °C, keep the rotation speed unchanged, stir for another 30 min to obtain the primary antibacterial coating mixture; A2: Mix polyurethane and acrylic resin and add them into a homogenizer, homogenize for 30 min, then transfer to a stainless - steel reaction kettle. Add benzophenone compound and polyethylene terephthalate into the stainless - steel reaction kettle, stir with a magnetic stirrer for 15 min, set the rotation speed of the magnetic stirrer at 600 - 800 rpm, set the temperature at 55 - 60 °C, and stir to obtain the base antibacterial coating mixture; A3: Add silver ion antibacterial spheres into a pulverizer, set the pulverizing particle size at 500 mesh, pulverize for 30 min. After pulverizing, pass through a 500 - mesh sieve, collect the sieved product to obtain silver ion antibacterial sphere powder. Mix the primary antibacterial coating mixture and the base antibacterial coating mixture and add them into a homogenizer, then add silver ion antibacterial sphere powder, turn on the homogenizer and homogenize for 30 min. After homogenization, transfer to a stainless - steel reaction kettle. Add benzoic acid into the stainless - steel reaction kettle, stir evenly with a magnetic stirrer, set the rotation speed of the magnetic stirrer at 1000 - 1200 rpm, the temperature is 65 - 70 °C, stir and mix evenly for 30 min. After stirring, turn off the rotor of the magnetic stirrer, keep the temperature unchanged, and let it stand for 1 - 1.5 h; A4: After standing, turn on the rotor of the magnetic stirrer, set the rotation speed at 600 - 800 rpm, set the temperature at 55 - 60 °C, stir for 30 min. After stirring, let it stand for 30 - 45 min. After standing, obtain the antibacterial coating solution.

2. The anti-fouling and antibacterial medical clothing fabric according to claim 1, characterized in that, The base fabric is a base fabric formed by mixing and pressing a polyester fiber layer, a nylon fiber layer, and a cotton fiber layer. Among them, the polyester fiber layer is the outermost fabric with a thickness of 0.4 mm; the nylon fiber layer is the middle fabric with a thickness of 0.2 mm; the cotton fiber is the innermost fabric with a thickness of 0.5 mm.

3. The anti-fouling and antibacterial medical uniform fabric according to claim 1, wherein The rosemary extract is a yellow - brown fine rosemary powder with a particle size of 200 mesh and a specification of 10:

1.

4. The anti-fouling and antibacterial medical uniform fabric according to claim 1, characterized in that, The silver ion antibacterial spheres mentioned in step A3 are silver ion antibacterial ceramic spheres with a particle size of 50 mesh.

5. The anti-fouling and antibacterial medical uniform fabric according to claim 1, wherein, The benzophenone compound is 2 - hydroxy - 4 - n - octyloxybenzophenone.

6. A preparation method of an anti-fouling and antibacterial medical uniform fabric, characterized in that, Include the following steps: B1: Place the base fabric into an ultrasonic cleaner, set the ultrasonic frequency to 80 - 100 KHz, add 1.5 - 2 L of deionized water and ultrasonically clean for 20 min. After cleaning, transfer it to an oven, set the oven air velocity to 1.5 m / s, and dry at 60 °C for 15 min; B2: Add the polytetrafluoroethylene coating solution to a magnetic stirrer, set the stirring rate to 500 - 600 rpm, stir for 30 min. After stirring, pass the polytetrafluoroethylene coating solution through a 200 - mesh filter screen, and transfer the filtered polytetrafluoroethylene coating solution to a pressure tank and stir repeatedly for 15 - 20 min; B3: Transfer the base fabric to a spraying box, use a spray gun to spray the repeatedly stirred polytetrafluoroethylene coating solution on the surface of the base fabric. Subsequently, transfer the base fabric to a surface - drying furnace, set the surface - drying furnace temperature to 65 - 70 °C, and the surface - drying time to 15 - 20 min; B4: Transfer the surface - dried base fabric to a curing furnace, set the curing temperature to 70 - 75 °C, and the curing time to 5 - 10 min. After curing, take out the base fabric and let it cool naturally in a room - temperature environment. After cooling, check whether there are bubbles and uncoated areas on the surface of the polytetrafluoroethylene coating solution sprayed on the base fabric. Use a scraper to scrape off the antibacterial coating solution on the surface of the base fabric with bubbles and uncoated areas. After scraping, transfer the base fabric to a spraying box and repeat steps B2 - B3 until there are no bubbles and uncoated areas on the surface of the base fabric; B5: Transfer the base fabric with no bubbles and uncoated areas on its surface to a spraying box, then turn the base fabric over, and repeat steps B2 - B4; B6: Add the antibacterial coating solution to a magnetic stirrer, set the stirring rate to 500 - 600 rpm, stir for 30 min. After stirring, pass the antibacterial coating through a 200 - mesh filter screen, and transfer the filtered antibacterial coating solution to a pressure tank and stir repeatedly for 15 - 20 min; B7: Transfer the base fabric with no bubbles and uncoated areas on its surface to a spraying box, use a spray gun to spray the repeatedly stirred antibacterial coating solution on the polytetrafluoroethylene coating on the surface of the base fabric after curing. Subsequently, transfer the base fabric to a surface - drying furnace, set the surface - drying furnace temperature to 45 - 50 °C, and the surface - drying time to 15 - 20 min; B8: After surface - drying, transfer it to a curing furnace, set the curing temperature to 50 - 55 °C, and the curing time to 5 - 10 min. After curing, take it out and let it cool naturally in a room - temperature environment. After cooling, check whether there are bubbles and uncoated areas on the surface of the antibacterial coating solution sprayed on the base fabric. Use a scraper to scrape off the antibacterial coating solution on the surface of the base fabric with bubbles and uncoated areas. After scraping, transfer the base fabric to a spraying box and repeat steps B7 - B8 until there are no bubbles and uncoated areas on the surface of the base fabric; B9: Transfer the base fabric with no bubbles and uncoated areas on its surface to a spraying box, then turn the base fabric over, and repeat steps B6 - B8 to obtain the stain - resistant and antibacterial medical uniform fabric.

7. The preparation method of an anti-fouling and antibacterial medical uniform fabric according to claim 6, characterized in that, The spraying thickness of the polytetrafluoroethylene coating solution in step B3 is 10 - 15 μm.

8. The preparation method of an anti-fouling and antibacterial medical uniform fabric according to claim 6, characterized in that, The spraying thickness of the antibacterial coating solution in step B7 is 15 - 20 μm.

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