Magnetic healthcare fabric with antibacterial and infrared radiation properties.

Abstract

The objective of the present invention is to provide a method for manufacturing magnetic health care fabric with antibacterial and infrared radiation properties. The method for manufacturing magnetic health care fabric with antibacterial and fatigue-relieving properties includes the preparation of BFO, the preparation of nano-ZnO dispersion, the preparation of magnetic BFO@ZnO particles, and the production of magnetic fiber. The spinning process includes the blending process, carding process, drawing process, roving process, spinning process, winding process, and weaving process. The zinc ion (Zn 2+ ) serves as the main antibacterial mechanism of nano ZnO, and at the same time, coffee carbon fiber has excellent far-infrared radiation function, which acts on the skin, improves the microcirculation of the human body, and reduces fatigue after exercise. This fabric has the characteristics of antibacterial, fatigue-relieving, moisture-wicking, quick-drying and cool feeling.

Description

[Technical Field]

[0001] This invention relates to a method for manufacturing a magnetic healthcare fabric with antibacterial and infrared radiation properties. [Background technology]

[0002] As society progresses and living standards improve, low carbon emissions, environmental protection, health, and sustainability have become central to people's lives. In recent years, with advancements and applications of science and technology, people have increasingly focused on the perfect integration of science and technology with health, gradually shifting their attention to the health and recovery of the human body, and placing increasing importance on the resilience and functionality of materials to the body.

[0003] Coffee, along with cocoa and tea, is one of the world's most popular beverages. Its rich aroma and smooth, mellow taste, as well as its stimulating and fatigue-relieving effects, have made it beloved by many. According to relevant statistics, global coffee consumption reached 15.1303 billion bags between 2015 and 2016, continuing to grow at an average annual rate of 1.3%. However, for many years, roasted coffee grounds have often been treated as waste, with the majority being landfilled or incinerated. This large amount of discarded coffee grounds not only wastes resources but also contributes to environmental pollution. Coffee carbon fiber is a new type of natural fiber. Discarded coffee grounds are calcined and carbonized at a high temperature of 1000°C to produce a coffee carbon nanomasterbatch, which is then added to a nylon or polyester solution for spinning. The entire manufacturing process reduces carbon dioxide emissions by 48% compared to bamboo charcoal and 85% compared to coconut charcoal, offering the advantages of being low-carbon and environmentally friendly.

[0004] Furthermore, related research has shown that coffee charcoal has many functions, and the ultra-fine porosity structure of coffee carbon fibers gives them excellent antibacterial properties. In addition, coffee charcoal itself has both a diamond structure (SP3) and graphite (SP2), and when subjected to thermal energy, coffee carbon fibers emit far-infrared rays and can release negative ions through friction with air.

[0005] Through current research on coffee carbon fiber and textile products, a basic understanding of the properties of coffee carbon fiber, coffee yarn, and their textile products has been gained. Coffee carbon fiber products possess excellent properties such as heat retention, breathability, antibacterial properties, far-infrared radiation, and negative ions. While applied research on these properties is being conducted, development and research into the application of this multi-functional coffee carbon fiber to sports functional textile products remains underdeveloped. Therefore, by fully utilizing the abundant coffee grounds resources and favorable market conditions, seamless knit sports fabrics should be developed to enrich the functional apparel market and meet the increasingly sophisticated demands of consumers for sports consumption. [Overview of the project] [Problems that the invention aims to solve]

[0006] The objective of this invention is to ultimately obtain a fabric that possesses infrared radiation properties, antibacterial properties, and healthcare benefits, by solving problems such as low antibacterial properties of the fabric, lack of contribution to healthcare, and insufficient consideration for the environment. [Means for solving the problem]

[0007] The above technical objectives of the present invention are achieved by the following technical means.

[0008] A method for manufacturing a magnetic healthcare fabric having antibacterial and infrared radiation properties, having the following configuration: Step 1: Preparation of BFO precursor solution Prepare a samarium nitrate solution by dissolving samarium oxide in nitric acid solution. Then, take the DMF solution, add iron nitrate and bismuth nitrate (excess Bi element), and stir until the solid is completely dissolved. Next, add the samarium nitrate solution and stir uniformly, then add citric acid and stir until the solid is completely dissolved. After that, sonicate the above mixture, and finally, place the mixture in a magnetic stirrer and stir with a magnetic stirring bar. Slowly add the PVP powder and stir until the PVP is completely dissolved. Obtain a BFO precursor solution. Step 2: Preparation of nano-ZnO dispersion A certain amount of nanoZnO is weighed out using a balance and transferred to a beaker, distilled water and a certain amount of dispersant are added, and the mixture is sonicated at room temperature. Then, ethylene glycol (EG) is added to the beaker to prepare a dispersion slurry, and the sonication is continued until evaporation and dehydration occur, finally obtaining a slurry-like nanoZnO dispersion. Step 3: Magnetic BFO / ZnO composite particles Preparation A nano-ZnO dispersion is mixed with a BFO precursor solution and ultrasonically dispersed to obtain a magnetic BFO@ZnO particle solution. Step 4: Spinning Magnetic fibers are manufactured using electrospinning. Step 5: Formation Coffee carbon fiber and magnetic fiber, According to different blending ratios and tissue structures knitting This allows for obtaining textiles of different specifications.

[0009] Preferably, 0.01-0.05 mol of samarium oxide is dissolved in 20-30 ml of nitric acid solution to prepare a 1-2 mol / L samarium nitrate solution, and then 40-50 ml of DMF solution is taken and 4-8 × 10 -3 mol of iron nitrate and 4-8.4 × 10 -3mol of bismuth nitrate (with an excess of 5-10% Bi element) is added respectively, and stirred until the solid is completely dissolved; then 0.4-0.8 mL of samarium nitrate solution is added, after uniform stirring, 4-10 g of citric acid is added, and stirred until the solid is completely dissolved. Subsequently, the above mixed solution is subjected to ultrasonic treatment for about 10-20 minutes. Finally, the mixed solution is placed on a magnetic stirrer, stirred with a magnetic stir bar, 3-3.5 g of PVP powder is slowly added, and stirring is performed until PVP is completely dissolved to BFO precursor solution form

[0010] Preferably, 20-25 g of nano-ZnO is weighed with a balance and transferred into a 250-500 mL beaker, 20-30 mL of distilled water and 5-8 g of a dispersant are added, and ultrasonic treatment is performed for 30-40 minutes under room temperature conditions. Then 200-240 g of ethylene glycol (EG) is added to the beaker to prepare a dispersed slurry with a concentration of 10-15% by weight, ultrasonic treatment is continued for 60-70 minutes, followed by evaporation and dehydration, and finally a nano-ZnO dispersion in slurry form is obtained.

[0011] Preferably, the nano-ZnO dispersion is mixed with the BFO precursor solution, and subjected to ultrasonic dispersion for 30-40 minutes to obtain Magnetic BFO / ZnO composite particles a solution.

[0012] Preferably, spinning: Using the magnetic BFO / ZnO composite particle solution obtained in step 3, An electrostatic spinning method is used, with the following parameters: DC voltage 20-25 kV, distance from the needle tip to the receiving rotor 20-25 cm, electric field strength 1-1.5 kV / cm, feed rate of the syringe pump 0.5-1 mL / h, ambient temperature 25-30°C, and humidity 45-50%.

[0013] Preferably, the spinning process has the following components, (1) Blowing and scutching process Fibers are loosened into individual pieces and arranged into a sheet form by manual disintegration. Coffee carbon fibers contain no impurities, but have relatively low strength, so fibers may be damaged if opening and dust removal are performed by equipment.

[0014] (2) Carding process The combing machine's cylinder speed is 300-360 r / min, and the licker in-roller speed is 800-850 r / min. In the combing process, emphasis is placed on combing and reducing fiber damage, and the principle of combing is to increase fiber transport.

[0015] By adopting the present invention, the fineness of the coffee carbon fibers is made finer, the strength is lower, the combing gauge is appropriately expanded, the licker-in roller speed is reduced, fiber damage is reduced, the cotton drop gauge is shortened, fiber transport becomes smoother, and fibers are prevented from falling and getting tangled between the cylinder doffers and blocking the combing area.

[0016] (3) Drilling process Pre-mixed coffee charcoal strips: Dry weight 16g / 3m~17.6g / 5m, Mixing machine model FA306. Draft magnification: 8-8.5x, rear draft: 1-1.7x, speed: 200-210m / min, trumpet: 3-3.5mm, gauge: 5mm x 15mm - 7mm x 20mm The mixing speed for coffee charcoal and magnetic fiber is 200-210 m / min, the trumpet size is 3-3.5 mm, and the gauge is 5 mm x 15 mm to 7 mm x 16 mm.

[0017] (4) Rovering process The number of twists for the blended yarn should be 5 to 5.5 times / 10cm, and the FA423 model roving machine was selected. Because the bonding force between coffee carbon fibers and magnetic fibers is weak, it is important to select the twist coefficient for roving. If the twist coefficient is too high, it is likely to affect the subsequent spinning process and make yarn drafting difficult. Conversely, if the twist coefficient is too low, the roving is prone to slipping, resulting in unexpected elongation.

[0018] (5) Spinning process Select a rear draft of 1 to 1.5 times, a gauge of 1 to 3.0 mm, and a V-shaped draft.

[0019] By adopting this invention, coffee carbon fibers are prevented from becoming entangled in the rollers, draft efficiency is improved, additional non-uniformity is reduced, and the interfiber bonding force is not impaired.

[0020] (6) Thread winding The winding speed is 1000-1200 m / min.

[0021] By adopting this invention, "low tension and low speed" becomes possible. In the winding process, setting the speed low and reducing the tension suppresses yarn fuzzing and reduces the number of yarn breaks, and by using an electrocapacitive yarn rumbler, yarn defects are reduced.

[0022] Preferably, Formation The parameters are a thickness of 0.7-1.1 mm and a weight of 200-260 g / m² per square meter. 2 Whale density: 100-120 particles / 5cm, Coarse density: 110-200 particles / 5cm, Total density: 500-900 particles / cm 2 That is the case. [Brief explanation of the drawing]

[0023] [Figure 1] This is a flowchart of the manufacturing method for magnetic healthcare fabric with antibacterial and infrared radiation properties. [Modes for carrying out the invention]

[0024] (Example 1) Dissolve 0.01 mol of samarium oxide in 20 ml of nitric acid solution to prepare a 1 mol / L samarium nitrate solution. Then take 40 ml of DMF solution and add 4 × 10 -3 mol of iron nitrate and 4 × 10 -3Each mol of bismuth nitrate (5% excess Bi) was added and stirred until the solid was completely dissolved. Then 0.4 mL of samarium nitrate solution was added and stirred uniformly, and then 4 g of citric acid was added and stirred until the solid was completely dissolved. After that, the above mixed solution was sonicated for about 10 minutes. Finally, 3 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0025] 20 g of nanoZnO was weighed out using a balance and transferred to a 250 mL beaker. 20 ml of distilled water and 5 g of dispersant were added, and the mixture was sonicated for 30 minutes at room temperature. Then, 200 g of ethylene glycol (EG) was added to the beaker to prepare a 10% wt dispersion slurry. The sonication was continued for 60 minutes, followed by evaporation and dehydration to obtain a slurry-like nanoZnO dispersion.

[0026] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 minutes. Magnetic BFO / ZnO composite particles A solution was obtained.

[0027] Spinning: Electrospinning was used, with the following parameters: DC voltage 20kV, distance from needle tip to receiving rotor 20cm, electric field strength 1kV / cm, syringe pump feed rate 0.5mL / h, ambient temperature 25℃, and humidity 45%.

[0028] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 300 r / min, and the licker in-roller speed is 800 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 16g / 3m, Mixing machine model FA306. Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The mixing speed of the coffee charcoal and magnetic fiber was 200 m / min, the trumpet was 3 mm, and the gauge was 5 mm x 15 mm. (4) Roving The blended yarn will have 5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning 1-fold back draft, gauge of 1 mm and V-shaped draft are selected, (6) Winding The winding speed was 1000 m / min.

[0029] Formation Parameters: thickness 0.7 mm, gram weight per square meter 200 g / m 2 , wale density 100 / 5 cm, course density 110 / 5 cm, total density 500 / cm 2 .

[0030] (Example 2) 0.02 mol of samarium oxide is dissolved in 24 mL of nitric acid solution, prepared into a 1 mol / L samarium nitrate solution, and set aside. Then 45 mL of DMF solution is taken, and 5×10 -3 mol of iron nitrate and 5×10 -3 mol of bismuth nitrate (7% excess of Bi element) are added respectively, and the mixture is stirred until the solid is completely dissolved. Then 0.6 mL of samarium nitrate solution is added, after stirring uniformly, 6 g of citric acid is added, and the mixture is stirred until the solid is completely dissolved. Thereafter, the above mixed solution is subjected to ultrasonic treatment for about 14 minutes. Finally, 3.2 g of PVP powder is slowly added, and the mixture is stirred until PVP is completely dissolved to form a BFO solution.

[0031] 22 g of nano-ZnO is weighed with a balance, transferred into a 500 mL beaker, added with 23 mL of distilled water and 8 g of dispersant, subjected to ultrasonic treatment for 35 minutes under room temperature. Then 220 g of ethylene glycol (EG) is added into the beaker to prepare a 12%wt dispersed slurry, ultrasonic treatment is continued for 65 minutes, followed by evaporation and dehydration, and finally a slurry nano-ZnO dispersion is obtained.

[0032] The nano-ZnO dispersion is mixed with the BFO precursor solution, and subjected to ultrasonic dispersion for 34 minutes to Magnetic BFO / ZnO composite particles obtain a solution.

[0033] Spinning: Electrospinning was used, with the following parameters: DC voltage 22kV, distance from needle tip to receiving rotor 22cm, electric field strength 1.2kV / cm, syringe pump feed rate 0.6mL / h, ambient temperature 27°C, and humidity 47%.

[0034] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 320 r / min, and the licker in-roller speed is 810 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 16.5g / 3m, Mixing machine model FA306. Draft magnification: 8.3x, rear draft: 1.4x, speed: 205m / min, trumpet: 3.3mm, gauge: 5mm x 18mm The mixing speed of the coffee charcoal and magnetic fiber was 206 m / min, the trumpet was 3 mm, and the gauge was 5 mm x 15 mm. (4) Roving The blended yarn will have 5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning I selected a 1.3x rear draft, 2mm gauge, and V-shaped draft. (6) Thread winding The winding speed was 1100 m / min.

[0035] Formation Parameters: Thickness 0.8mm, weight per square meter 220g / m 2 , wale density 110 pieces / 5cm, course density 150 pieces / 5cm, total density 600 pieces / cm 2 .

[0036] (Example 3) Dissolve 0.04 mol of samarium oxide in 28 ml of nitric acid solution to prepare a 1.5 mol / L samarium nitrate solution. Then take 48 ml of DMF solution and add 7 × 10 -3 mol of iron nitrate and 7 × 10 -3Each mol of bismuth nitrate (8% excess Bi) was added and stirred until the solid was completely dissolved. Next, 0.7 mL of samarium nitrate solution was added and stirred uniformly, then 8 g of citric acid was added and stirred until the solid was completely dissolved. After that, the above mixed solution was sonicated for about 18 minutes. Finally, 3.4 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0037] 24 g of nanoZnO was weighed out and transferred to a 500 mL beaker. 28 ml of distilled water and 6 g of dispersant were added, and the mixture was sonicated at room temperature for 38 minutes. Then, 230 g of ethylene glycol (EG) was added to the beaker to prepare a 14% wt dispersion slurry. The sonication was continued for 68 minutes, followed by evaporation and dehydration to obtain a slurry-like nanoZnO dispersion.

[0038] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 38 minutes. Magnetic BFO / ZnO composite particles A solution was obtained.

[0039] Spinning: Electrospinning was used, with the following parameters: DC voltage 24kV, distance from needle tip to receiving rotor 24cm, electric field strength 1.4kV / cm, syringe pump feed rate 0.8mL / h, ambient temperature 28℃, and humidity 48%.

[0040] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 350 r / min, and the licker in-roller speed is 840 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 17g / 5m, Mixing machine model FA306. Draft magnification: 8.5x, rear draft: 1.7x, speed: 208m / min, trumpet: 3.5mm, gauge: 7mm x 20mm The mixing speed of the coffee charcoal and magnetic fiber was 208 m / min, the trumpet was 3.5 mm, and the gauge was 7 mm x 16 mm. (4) Roving The blended yarn will have 5.5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning I selected a 1.5x rear draft, 3.0mm gauge, and V-shaped draft. (6) Thread winding The winding speed was 1115 m / min.

[0041] Formation Parameters: Thickness 1mm, weight per square meter 240g / m 2 Whale density 115 particles / 5cm, course density 180 particles / 5cm, total density 800 particles / cm 2 .

[0042] (Example 4) Dissolve 0.05 mol of samarium oxide in 30 ml of nitric acid solution to prepare a 2 mol / L samarium nitrate solution. Then take 50 ml of DMF solution and add 8 × 10 -3 mol of iron nitrate and 8 × 10 -3 Each mol of bismuth nitrate (10% excess Bi) was added and stirred until the solid was completely dissolved. Next, 0.8 mL of samarium nitrate solution was added and stirred uniformly, then 4 g of citric acid was added and stirred until the solid was completely dissolved. After that, the above mixed solution was sonicated for about 20 minutes. Finally, 3.5 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0043] 25 g of nanoZnO was weighed out and transferred to a 240 mL beaker. 30 ml of distilled water and 8 g of dispersant were added, and the mixture was sonicated at room temperature for 40 minutes. Then, 240 g of ethylene glycol (EG) was added to the beaker to prepare a 15% wt dispersion slurry. The sonication was continued for 70 minutes, followed by evaporation and dehydration to obtain a slurry-like nanoZnO dispersion.

[0044] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 40 minutes. Magnetic BFO / ZnO composite particles A solution was obtained.

[0045] Spinning: Electrospinning was used, with the following parameters: DC voltage 25kV, distance from needle tip to receiving rotor 25cm, electric field strength 1.5kV / cm, syringe pump feed rate 1mL / h, ambient temperature 30℃, and humidity 50%.

[0046] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 360 r / min, and the licker in-roller speed is 850 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 17.6g / 5m, Mixing machine model FA306. Draft magnification: 8.5x, rear draft: 1.7x, speed: 210m / min, trumpet: 3.5mm, gauge: 7mm x 20mm The mixing speed of the coffee charcoal and magnetic fiber was 210 m / min, the trumpet was 3.5 mm, and the gauge was 7 mm x 16 mm. (4) Roving The blended yarn will have 5.5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning I selected a 1.5x rear draft, 3.0mm gauge, and V-shaped draft. (6) Thread winding The winding speed was 1200 m / min.

[0047] Formation Parameters: Thickness 1.1 mm, weight per square meter 260 g / m 2 , wale density 120 pieces / 5cm, course density 200 pieces / 5cm, total density 900 pieces / cm 2 .

[0048] (Comparative Example 1) Dissolve 0.01 mol of samarium oxide in 20 ml of nitric acid solution to prepare a 1 mol / L samarium nitrate solution. Then take 40 ml of DMF solution and add 4 × 10 -3 mol of iron nitrate and 4 × 10 -3Each mol of bismuth nitrate (5% excess Bi) was added and stirred until the solid was completely dissolved. Then 0.4 mL of samarium nitrate solution was added and stirred uniformly, and then 4 g of citric acid was added and stirred until the solid was completely dissolved. After that, the above mixed solution was sonicated for about 10 minutes. Finally, 3 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0049] 20 g of nanoZnO was weighed out using a balance and transferred to a 250 mL beaker. 20 ml of distilled water and 5 g of dispersant were added, and the mixture was sonicated for 30 minutes at room temperature. Then, 200 g of ethylene glycol (EG) was added to the beaker to prepare a 10% wt dispersion slurry. The sonication was continued for 60 minutes, followed by evaporation and dehydration to obtain a slurry-like nanoZnO dispersion.

[0050] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 minutes. Magnetic BFO / ZnO composite particles A solution was obtained.

[0051] Spinning: Electrospinning was used, with the following parameters: DC voltage 20kV, distance from needle tip to receiving rotor 20cm, electric field strength 1kV / cm, syringe pump feed rate 0.5mL / h, ambient temperature 25℃, and humidity 45%.

[0052] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 300 r / min, and the licker in-roller speed is 800 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 16g / 3m, Mixing machine model FA306. Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The mixing speed of the coffee charcoal and magnetic fiber was 200 m / min, the trumpet was 3 mm, and the gauge was 5 mm x 15 mm. (4) Roving The blended yarn will have 5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning Select a 1x rear draft, 1mm gauge, and V-shaped draft. (6) Thread winding The winding speed was 1000 m / min.

[0053] Formation Parameters: Thickness 0.7mm, weight per square meter 200g / m 2 , wale density 100 pieces / 5cm, coarse density 110 pieces / 5cm, total density 500 pieces / cm 2 .

[0054] (Comparative Example 2) Dissolve 0.01 mol of samarium oxide in 20 ml of nitric acid solution to prepare a 1 mol / L samarium nitrate solution. Then take 40 ml of DMF solution and add 4 × 10 -3 mol of iron nitrate and 4 × 10 -3 Each mol of bismuth nitrate (5% excess Bi) was added and stirred until the solid was completely dissolved. Then 0.4 mL of samarium nitrate solution was added and stirred uniformly, and then 4 g of citric acid was added and stirred until the solid was completely dissolved. After that, the above mixed solution was sonicated for about 10 minutes. Finally, 3 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0055] 20 g of nanoZnO was weighed out using a balance and transferred to a 250 mL beaker. 20 ml of distilled water and 5 g of dispersant were added, and the mixture was sonicated for 30 minutes at room temperature. Then, 200 g of ethylene glycol (EG) was added to the beaker to prepare a 10% wt dispersion slurry. The sonication was continued for 60 minutes, followed by evaporation and dehydration to obtain a slurry-like nanoZnO dispersion.

[0056] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 minutes. Magnetic BFO / ZnO composite particles A solution was obtained.

[0057] Spinning: Electrospinning was used, with the following parameters: DC voltage 20kV, distance from needle tip to receiving rotor 20cm, electric field strength 1kV / cm, syringe pump feed rate 0.5mL / h, ambient temperature 25℃, and humidity 45%.

[0058] Spinning process (1) Blended cotton (2) Carded cotton The combing machine's cylinder speed is 300 r / min, and the licker in-roller speed is 800 r / min. (3) Renjo Coffee charcoal pre-mixing strips: Dry weight 16g / 3m, Mixing machine model FA306. Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The mixing speed of the coffee charcoal and magnetic fiber was 200 m / min, the trumpet was 3 mm, and the gauge was 5 mm x 15 mm. (4) Roving The blended yarn will have 5 twists per 10cm, and the FA423 model roving machine will be selected. (5) Spinning Select a 1x rear draft, 1mm gauge, and V-shaped draft. (6) Thread winding The winding speed was 1000 m / min.

[0059] Formation Parameters: Thickness 0.7mm, weight per square meter 200g / m 2 , wale density 100 pieces / 5cm, coarse density 110 pieces / 5cm, total density 500 pieces / cm 2 .

[0060] <Antibacterial Testing> The test method for GB / T 20944.3-2008 "Evaluation of Antimicrobial Properties of Textile Products, Part 3: Shaking Method" was as follows: Escherichia coli and Staphylococcus aureus were selected as representatives of Gram-negative and Gram-positive bacteria, respectively. Fifteen samples were cut into multiple test pieces of approximately 5 mm x 5 mm, and 0.75 g ± 0.05 g was weighed to make one test sample. After sterilization, these were placed in three flasks containing bacterial suspensions, the mouths of the flasks were sealed, and the flasks were placed in a constant temperature shaker and shaken at 24 °C ± 1 °C and 150 r / min for 18 hours. In a safety cabinet, the bacterial suspension was serially diluted 10-fold, 1 mL was taken in a test tube and transferred to a sterilized culture dish, spread evenly, sealed with plastic wrap, and finally the culture dish was inverted and placed in a 37 °C incubator for 24 to 48 hours. Finally, the number of colonies and bacterial inhibition rate were measured.

[0061] <Infrared Radiation Characteristics Test> (1) First, prepare the sample under constant temperature and humidity conditions for 24 hours. (2) Maintain the temperature of the test room at 24±2℃ and the relative humidity at 65±3%. To avoid interference from solar far-infrared radiation during the test, close the curtains in the test room before the test and ensure only low illumination sufficient for normal reading. (3) Subjects wore loose-fitting short-sleeved or sleeveless clothing, and to ensure that the test points were in the same anatomical locations each time the test was conducted, test marks were pre-marked with a black pen 7 cm from the cubital fossa of the subject's left forearm and 7 cm from the distal radioulnar joint of the wrist. To allow subjects to adapt to the test temperature and stabilize their emotions, subjects sat quietly in the test room 30 minutes before the test, keeping their left arm still to minimize fluctuations in microcirculation due to movement. After each test, subjects were required to sit quietly for 10 minutes to recover. After the test, the flow rate ratio Fh after covering was calculated, and finally, the blood flow promotion factor after covering the sample was calculated as an index for evaluating the microcirculation promoting ability of the fabric. (4) The power to the test equipment was turned on, and the distance between the test equipment and the subject's forearm was adjusted.

[0062] <Negative Ion Characteristics Test> Referencing GB / T 30128-2013 "Measurement and Evaluation of Negative Ion Generation in Textile Products".

[0063] <Wash resistance test> The washability test criteria for magnetic fabrics were carried out according to the GB / T3921.1-1997 standard method.

[0064] [Table 1]

[0065] [Table 2]

[0066] From the table, it was found that Example 4 had the best antibacterial effect, with a bacterial inhibition rate of 99% against Escherichia coli and Staphylococcus aureus, indicating excellent antibacterial properties. The antibacterial effect of the 1+2 pseudo-rib knit fabric was the highest, followed by the 1+1 pseudo-plain knit fabric, while the antibacterial effect of the plain weave with added yarn knit fabric was inferior. The reason for this is that, compared to the 1+2 pseudo-rib knit fabric and the 1+1 pseudo-plain knit fabric, the plain weave with added yarn knit fabric was more likely to accumulate metabolic waste from the human body, providing favorable conditions for the growth and reproduction of microorganisms.

[0067] [Table 3]

[0068] As can be seen from the table, Example 4 was the most effective, and the coffee charcoal nanofibers added to the fabric possessed a blood flow promoting function, i.e., a far-infrared function. Furthermore, the higher the coffee charcoal content, the greater the blood flow promoting effect of the fabric. The order of effectiveness was 1+2 pseudo-rib knit > 1+1 pseudo-plain knit > plain weave with added yarn knit. This is because the thickness of the fabric differed depending on the three types of fabric structures, and the amount of coffee charcoal in the same area of ​​fabric differed. Therefore, the blood flow promoting effect of the 1+2 pseudo-rib knit structure was the best, followed by the 1+1 pseudo-plain knit fabric, and the promoting effect of the plain weave with added yarn knit fabric was the worst.

[0069] [Table 4]

[0070] Coffee charcoal has excellent electrical properties that emit negative ions, and the higher the coffee charcoal content, the greater the amount of negative ions generated by the fabric. It was found that the 1+2 pseudo-rib knit fabric generated the most negative ions, followed by the 1+1 pseudo-plain knit fabric, and the plain weave with added yarn knit fabric generated the fewest negative ions. This is because the 1+2 pseudo-rib knit fabric is thicker than the other two fabrics, has a fluffier texture, and has larger gaps, resulting in a larger specific surface area and thus a greater amount of negative ions generated per unit area.

[0071] [Table 5]

[0072] As can be seen from the table, Example 4 had the best washability, and the magnetic induction strength of the fabrics in the comparative examples showed a more pronounced downward trend. This is because some of the magnetic powder attached to the surface of the magnetic fabric was removed during the washing process. However, the decrease in the magnetic induction strength of the magnetic fabric as a whole was not significant, indicating that the magnetic powder was firmly bound to the fibers, there was little loss of magnetic powder particles during the washing process, and the magnetic fabric had excellent washability.

[0073] This specific embodiment is merely intended to clarify the technical content of the present invention and is not a limitation on the invention. Those skilled in the art may, after reading this specification, make non-creative modifications to this embodiment as necessary, but such modifications should be protected under patent law insofar as they fall within the scope of the claims of the present invention.

Claims

1. A method for manufacturing a magnetic healthcare fabric having antibacterial and infrared radiation properties, having the following configuration: Step 1: Preparation of BFO precursor solution Prepare a samarium nitrate solution by dissolving samarium oxide in nitric acid solution. Then, take the DMF solution, add iron nitrate and bismuth nitrate (excess Bi), and stir until the solid is completely dissolved. Next, add the samarium nitrate solution and stir uniformly, then add citric acid and stir until the solid is completely dissolved. After that, sonicate the above mixture, and finally, place the mixture in a magnetic stirrer and stir with a magnetic stirring bar. Slowly add PVP powder and stir until the PVP is completely dissolved. Step 2: Preparation of nano-ZnO dispersion A certain amount of nano-ZnO is weighed out using a balance and transferred to a beaker. Distilled water and a certain amount of dispersant are added, and the mixture is sonicated at room temperature. Then, ethylene glycol (EG) is added to the beaker to form a dispersion slurry. The sonication process is continued, followed by evaporation and dehydration to obtain a slurry-like nano-ZnO dispersion. Step 3: Preparation of magnetic BFO / ZnO composite particles A nano-ZnO dispersion is mixed with a BFO precursor solution and ultrasonically dispersed to obtain a magnetic BFO / ZnO composite particle solution. Step 4: Spinning Using the magnetic BFO / ZnO composite particle solution obtained in step 3, magnetic fibers are manufactured using electrospinning. Process 5: Formation By adding coffee charcoal to a nylon or polyester solution and spinning it, then interweaving coffee carbon fibers with magnetic fibers according to different weaving ratios and structural configurations, knitted fabrics of different specifications can be obtained. A method for manufacturing a magnetic healthcare fabric that possesses antibacterial and infrared radiation properties.

2. Dissolve 0.01–0.05 mol of samarium oxide in 20–30 ml of nitric acid solution to prepare a 1–2 mol / L samarium nitrate solution, then take 40–50 ml of DMF solution and add 4–8 × 10 －３ mol of iron nitrate and 4-8.4 x 10 －３ A method for producing a magnetic healthcare fabric having antibacterial and infrared radiation properties as described in claim 1, characterized by adding mol of bismuth nitrate (5-10% excess of element Bi) to each, stirring until the solid is completely dissolved, then adding 0.4-0.8 mL of samarium nitrate solution, stirring uniformly, then adding 4-10 g of citric acid, stirring until the solid is completely dissolved, then sonicating the above mixed solution for 10-20 minutes, and finally placing the mixed solution in a magnetic stirrer and stirring with a magnetic stirring bar, and slowly adding 3-3.5 g of PVP powder, stirring until the PVP is completely dissolved to form a BFO precursor solution.

3. A method for producing a magnetic healthcare fabric having antibacterial and infrared radiation properties as described in claim 2, characterized by weighing 20 to 25 g of nanoZnO on a balance and transferring it to a 250 to 500 mL beaker, adding 20 to 30 mL of distilled water and 5 to 8 g of dispersant, sonicating at room temperature for 30 to 40 minutes, then adding 200 to 240 g of ethylene glycol (EG) to the beaker to prepare a 10 to 15% wt dispersion slurry, continuing sonication for 60 to 70 minutes, evaporating and dehydrating to finally obtain a slurry-like nanoZnO dispersion.

4. A method for producing a magnetic healthcare fabric having antibacterial and infrared radiation properties according to claim 3, characterized by mixing a nano-ZnO dispersion with a BFO precursor solution and ultrasonically dispersing it for 30 to 40 minutes to obtain a magnetic BFO / ZnO composite particle solution.

5. A method for producing a magnetic healthcare fabric having antibacterial and infrared radiation properties as described in claim 4, characterized in that an electrospinning method is used, and the parameters are a DC voltage of 20 to 25 kV, a distance from the needle tip to the receiving rotor of 20 to 25 cm, an electric field strength of 1 to 1.5 kV / cm, a syringe pump feed rate of 0.5 to 1 mL / h, an ambient temperature of 25 to 30°C, and a humidity of 45 to 50%.

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