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

[0002] With the progress of society and the improvement of living standards, low carbon, environmental protection, health and sustainability have become the main focus of people's lives. In recent years, with the advancement and application of science and technology, people have increasingly paid attention to the perfect integration of science and technology and health, and their interest has gradually shifted to the health and recovery of the human body, and they have increasingly attached importance to the recovery and functionality of materials for the body.

[0003] Coffee, along with cocoa and tea, is one of the world's most popular beverages. Its rich aroma, smooth, and mellow flavor, along with its stimulating and fatigue-relieving properties, make it a beloved beverage. According to relevant statistics, global coffee consumption reached 15.13 billion bags between 2015 and 2016, growing at an average annual rate of 1.3%. However, for many years, roasted coffee grounds have largely been disposed of as waste, with the majority of them being landfilled or incinerated. This waste not only wastes resources but also contributes to environmental pollution. Coffee carbon fiber is a new type of natural fiber. It is made by calcining and carbonizing discarded coffee grounds at a high temperature of 1000°C to produce a coffee charcoal 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, making it a low-carbon, environmentally friendly product.

[0004] Related research has shown that coffee charcoal has many functions, and its ultrafine pore structure gives it excellent antibacterial properties. Furthermore, coffee charcoal itself has both a diamond structure (SP3) and graphite structure (SP2), and when exposed to heat energy, coffee carbon fiber emits far infrared rays and releases negative ions through friction with the air.

[0005] Through current research into coffee carbon fiber and its textile products, a basic understanding has been gained of the properties of coffee carbon fiber, coffee yarn, and its textile products, and coffee carbon fiber products have been found to have excellent heat retention, breathability, antibacterial properties, far-infrared rays, negative ions, etc. Although application research into its properties has been conducted, there is still a gap in the development and research of this multifunctional coffee carbon fiber into functional sports textile products. Therefore, it is necessary to fully utilize the abundant coffee grounds resources and favorable market conditions to develop seamless knitted sports fabrics, thereby enriching the functional apparel market and meeting people's current increasingly sophisticated demands for sports consumption. Summary of the Invention [Problem to be solved by the invention]

[0006] The purpose of the present invention is to solve the problems of low antibacterial properties of fabrics, lack of contribution to health care, and insufficient environmental considerations, and ultimately to obtain fabrics with infrared radiation properties, antibacterial properties, and health care effects. [Means for solving the problem]

[0007] The above technical object of the present invention is achieved by the following technical means.

[0008] A method for manufacturing a magnetic health care fabric with antibacterial and infrared radiation properties, comprising: Step 1: BFO preparation Samarium oxide is dissolved in nitric acid solution to prepare a samarium nitrate solution. Then, DMF solution is taken, iron nitrate and bismuth nitrate (excess Bi element) are added respectively, and the solids are stirred until completely dissolved. Next, samarium nitrate solution is added, and after uniform stirring, citric acid is added, and the solids are stirred until completely dissolved. After that, the above mixed solution is ultrasonicated. Finally, the mixed solution is placed on a magnetic stirrer, and stirred with a magnetic stirrer. PVP powder is slowly added, and the PVP is stirred until completely dissolved. Step 2: Preparation of nano-ZnO dispersion A certain amount of nano-ZnO is weighed on a balance and transferred to a beaker, distilled water and a certain amount of dispersant are added, and ultrasonic treatment is performed at room temperature. Ethylene glycol (EG) is then added to the beaker to prepare a dispersion slurry. Ultrasonic treatment is continued, and the mixture is evaporated and dehydrated to finally obtain a nano-ZnO dispersion in a slurry state. Step 3: Preparation of magnetic BFO@ZnO particles The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed to obtain a magnetic BFO@ZnO particle solution. Process 4: Spinning Produce magnetic fibers using electrospinning; Process 5: Weaving By weaving according to different interweaving ratios and weave structures, fabrics of different specifications can be obtained.

[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 to 8.4 × 10 -3Add 100 mol of bismuth nitrate (Bi excess 5-10%) and stir until the solid is completely dissolved. Then add 0.4-0.8 mL of samarium nitrate solution and stir evenly. Then add 4-10 g of citric acid and stir until the solid is completely dissolved. Then ultrasonicate the above mixture for 10-20 minutes. Finally, place the mixture on a magnetic stirrer and stir with a magnetic stir bar. Slowly add 3-3.5 g of PVP powder and stir until the PVP is completely dissolved to form a BFO solution.

[0010] Preferably, 20 to 25 g of nano-ZnO is weighed out on a balance and transferred to a 250 to 500 mL beaker, 20 to 30 ml of distilled water and 5 to 8 g of dispersant are added, and ultrasonic treatment is carried out at room temperature for 30 to 40 minutes. 200 to 240 g of ethylene glycol (EG) is then added to the beaker to prepare a 10 to 15% wt dispersion slurry, which is then ultrasonicated for 60 to 70 minutes, evaporated, and dehydrated to finally obtain a nano-ZnO dispersion in a slurry form.

[0011] Preferably, the nano-ZnO dispersion is mixed with the BFO precursor solution and ultrasonically dispersed for 30-40 minutes to obtain a magnetic BFO@ZnO particle solution.

[0012] Preferably, spinning is performed using electrospinning, with parameters of DC voltage 20-25 kV, distance from needle tip to receiving rotor 20-25 cm, electric field strength 1-1.5 kV / cm, syringe pump feed rate 0.5-1 mL / h, ambient temperature 25-30°C, and humidity 45-50%.

[0013] Preferably, the spinning process has the following configuration: (1) Mixed batting process By manually unraveling the fibers, they are separated into sheets, Although coffee carbon fiber does not contain impurities, its strength is relatively low, so the fibers may be damaged when opened and de-dusted by equipment.

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

[0015] By adopting the present invention, the fineness of coffee carbon fiber is finer and the tenacity is lower, the combing gauge is appropriately enlarged, the licker-in roller speed is reduced, the damage to the fiber is reduced, the drop gauge is shortened, the fiber transport is smooth, and the fiber is prevented from falling between the cylinder doffers and becoming tangled and blocking the combing area.

[0016] (3) Drilling process Pre-drawing of coffee charcoal: dry weight 16g / 3m~17.6g / 5m, drawing machine model FA306, Draft ratio: 8-8.5x, rear draft 1-1.7x, speed: 200-210m / min, trumpet: 3-3.5mm, gauge: 5mm x 15mm - 7mm x 20mm, The drawing speed of coffee charcoal and magnetic fiber is 200-210 m / min, the trumpet is 3-3.5 mm, and the gauge is 5 mm x 15 mm - 7 mm x 16 mm.

[0017] (4) Rovering process The twist number of the blended yarn is 5-5.5 times / 10cm, and the FA423 model roving frame is selected. Because the binding force between coffee carbon fiber and magnetic fiber is weak, it is important to select the twist coefficient of the roving. If the twist coefficient is too large, it will easily affect the subsequent spinning process, making it difficult to draft the yarn. Conversely, if the twist coefficient is too small, the roving will easily slip off, resulting in unexpected elongation.

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

[0019] By adopting the present invention, coffee carbon fibers can be prevented from getting tangled in the rollers, the draft efficiency can be improved, additional unevenness can be reduced, and the cohesive force between fibers can be maintained.

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

[0021] The adoption of this invention makes it possible to achieve "low tension and low speed." In the yarn winding process, the speed is set low and the tension is reduced, which suppresses yarn fuzzing and reduces the number of yarn breakages. Furthermore, the use of a capacitive yarn clearer reduces yarn defects.

[0022] Preferably, the weaving parameters are: thickness 0.7-1.1 mm, gram weight per square meter 200-260 g / m 2 Wale density 100-120 pieces / 5cm, Course density 110-200 pieces / 5cm, Total density 500-900 pieces / cm 2 is. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a flowchart of a method for manufacturing a magnetic health care fabric with antibacterial and infrared radiation properties. DETAILED DESCRIPTION OF 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 dilute it with 4 × 10 -3 mol iron nitrate and 4 x 10 -3 mol of bismuth nitrate (Bi element excess 5%) was added and stirred until the solid was completely dissolved, then 0.4 mL of samarium nitrate solution was added and stirred evenly, then 4 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixed solution was ultrasonicated 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 nano-ZnO was weighed out on a balance and transferred to a 250 mL beaker. 20 mL of distilled water and 5 g of dispersant were added and ultrasonically treated at room temperature for 30 minutes. 200 g of ethylene glycol (EG) was then added to the beaker to prepare a 10% wt dispersion slurry. Ultrasonic treatment was continued for 60 minutes, followed by evaporation and dehydration, to obtain a nano-ZnO slurry dispersion.

[0026] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 min to obtain a magnetic BFO@ZnO particle solution.

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

[0028] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 300 r / min, and the licker-in roller speed is 800 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 16g / 3m, drawing machine model FA306, Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The drawing speed of coffee charcoal and magnetic fiber is 200m / min, the trumpet is 3mm, and the gauge is 5mm x 15mm. (4) Rover The twist number of the blended yarn is 5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1x back draft, 1mm gauge, V-type draft, (6) Thread winding The winding speed was 1000 m / min.

[0029] Weaving parameters: thickness 0.7mm, gram weight per square meter 200g / m2 Wale density 100 pieces / 5cm, Course density 110 pieces / 5cm, Total density 500 pieces / cm 2 .

[0030] Example 2 Dissolve 0.02 mol of samarium oxide in 24 ml of nitric acid solution to prepare a 1 mol / L samarium nitrate solution. Then take 45 mL of DMF solution and dilute it with 5 × 10 -3 mol iron nitrate and 5 x 10 -3 mol of bismuth nitrate (7% Bi excess) was added and stirred until the solid was completely dissolved, then 0.6 mL of samarium nitrate solution was added and stirred evenly, then 6 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixture was ultrasonicated for about 14 minutes. Finally, 3.2 g of PVP powder was slowly added and stirred until the PVP was completely dissolved to form a BFO solution.

[0031] 22 g of nano-ZnO was weighed out on a balance and transferred to a 500 mL beaker. 23 mL of distilled water and 8 g of dispersant were added and ultrasonically treated at room temperature for 35 minutes. 220 g of ethylene glycol (EG) was then added to the beaker to prepare a 12% wt dispersion slurry. Ultrasonic treatment was continued for 65 minutes, followed by evaporation and dehydration, to obtain a nano-ZnO slurry dispersion.

[0032] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 34 min to obtain a magnetic BFO@ZnO particle solution.

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

[0034] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 320 r / min, and the licker-in roller speed is 810 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 16.5g / 3m, drawing machine model FA306, Draft magnification: 8.3x, rear draft 1.4x, speed: 205m / min, trumpet: 3.3mm, gauge: 5mm x 18mm The drawing speed of coffee charcoal and magnetic fiber is 206 m / min, the trumpet is 3 mm, and the gauge is 5 mm x 15 mm. (4) Rover The twist number of the blended yarn is 5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1.3x rear draft, 2mm gauge, V-type draft, (6) Thread winding The winding speed was 1100 m / min.

[0035] Weaving parameters: thickness 0.8mm, gram 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 dilute it with 7 x 10 -3 mol iron nitrate and 7 x 10 -3 mol of bismuth nitrate (Bi excess 8%) was added and stirred until the solid was completely dissolved, then 0.7 mL of samarium nitrate solution was added and stirred evenly, then 8 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixture was ultrasonicated 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 nano-ZnO was weighed on a balance and transferred to a 500 mL beaker, to which 28 mL of distilled water and 6 g of dispersant were added, and ultrasonically treated for 38 minutes at room temperature. 230 g of ethylene glycol (EG) was then added to the beaker to prepare a 14% wt dispersion slurry, which was then ultrasonically treated for 68 minutes, evaporated, and dehydrated to obtain a nano-ZnO slurry dispersion.

[0038] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 38 min to obtain a magnetic BFO@ZnO particle solution.

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

[0040] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 350 r / min, and the licker-in roller speed is 840 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 17g / 5m, drawing machine model FA306, Draft magnification: 8.5x, rear draft 1.7x, speed: 208m / min, trumpet: 3.5mm, gauge: 7mm x 20mm The drawing speed of coffee charcoal and magnetic fiber is 208 m / min, the trumpet is 3.5 mm, and the gauge is 7 mm x 16 mm. (4) Rover The twist number of the blended yarn is 5.5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1.5x rear draft, 3.0mm gauge, V-type draft, (6) Thread winding The winding speed was 1115 m / min.

[0041] Weaving parameters: thickness 1mm, gram weight per square meter 240g / m 2Wale density 115 pieces / 5cm, Course density 180 pieces / 5cm, Total density 800 pieces / 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 iron nitrate and 8 x 10 -3 mol of bismuth nitrate (Bi excess 10%) was added and stirred until the solid was completely dissolved, then 0.8 mL of samarium nitrate solution was added and stirred evenly, then 4 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixture was ultrasonicated 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 nano-ZnO was weighed out on a balance and transferred to a 240 mL beaker. 30 mL of distilled water and 8 g of dispersant were added and ultrasonically treated at room temperature for 40 minutes. 240 g of ethylene glycol (EG) was then added to the beaker to prepare a 15% wt dispersion slurry. Ultrasonic treatment was continued for 70 minutes, followed by evaporation and dehydration, to obtain a nano-ZnO slurry dispersion.

[0044] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 40 min to obtain a magnetic BFO@ZnO particle solution.

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

[0046] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 360 r / min, and the licker-in roller speed is 850 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 17.6g / 5m, drawing machine model FA306, Draft magnification: 8.5x, rear draft 1.7x, speed: 210m / min, trumpet: 3.5mm, gauge: 7mm x 20mm The drawing speed of coffee charcoal and magnetic fiber is 210 m / min, the trumpet is 3.5 mm, and the gauge is 7 mm x 16 mm. (4) Rover The twist number of the blended yarn is 5.5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1.5x rear draft, 3.0mm gauge, V-type draft, (6) Thread winding The winding speed was 1200 m / min.

[0047] Weaving parameters: thickness 1.1mm, gram weight per square meter 260g / 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 dilute it with 4 × 10 -3 mol iron nitrate and 4 x 10 -3 mol of bismuth nitrate (Bi element excess 5%) was added and stirred until the solid was completely dissolved, then 0.4 mL of samarium nitrate solution was added and stirred evenly, then 4 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixed solution was ultrasonicated 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 nano-ZnO was weighed out on a balance and transferred to a 250 mL beaker. 20 mL of distilled water and 5 g of dispersant were added and ultrasonically treated at room temperature for 30 minutes. 200 g of ethylene glycol (EG) was then added to the beaker to prepare a 10% wt dispersion slurry. Ultrasonic treatment was continued for 60 minutes, followed by evaporation and dehydration, to obtain a nano-ZnO slurry dispersion.

[0050] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 min to obtain a magnetic BFO@ZnO particle solution.

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

[0052] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 300 r / min, and the licker-in roller speed is 800 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 16g / 3m, drawing machine model FA306, Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The drawing speed of coffee charcoal and magnetic fiber is 200m / min, the trumpet is 3mm, and the gauge is 5mm x 15mm. (4) Rover The twist number of the blended yarn is 5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1x back draft, 1mm gauge, V-type draft, (6) Thread winding The winding speed was 1000 m / min.

[0053] Weaving parameters: thickness 0.7mm, gram weight per square meter 200g / m 2Wale density 100 pieces / 5cm, Course 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 dilute it with 4 × 10 -3 mol iron nitrate and 4 x 10 -3 mol of bismuth nitrate (Bi element excess 5%) was added and stirred until the solid was completely dissolved, then 0.4 mL of samarium nitrate solution was added and stirred evenly, then 4 g of citric acid was added and stirred until the solid was completely dissolved, and then the above mixed solution was ultrasonicated 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 nano-ZnO was weighed out on a balance and transferred to a 250 mL beaker. 20 mL of distilled water and 5 g of dispersant were added and ultrasonically treated at room temperature for 30 minutes. 200 g of ethylene glycol (EG) was then added to the beaker to prepare a 10% wt dispersion slurry. Ultrasonic treatment was continued for 60 minutes, followed by evaporation and dehydration, to obtain a nano-ZnO slurry dispersion.

[0056] The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed for 30 min to obtain a magnetic BFO@ZnO particle solution.

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

[0058] Spinning process (1) Mixed cotton (2) Carded cotton The carding machine cylinder speed is 300 r / min, and the licker-in roller speed is 800 r / min. (3) Renjo Pre-drawing of coffee charcoal: dry weight 16g / 3m, drawing machine model FA306, Draft magnification: 8x, rear draft: 1x, speed: 200m / min, trumpet: 3mm, gauge: 5mm x 15mm The drawing speed of coffee charcoal and magnetic fiber is 200m / min, the trumpet is 3mm, and the gauge is 5mm x 15mm. (4) Rover The twist number of the blended yarn is 5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning Select 1x back draft, 1mm gauge, V-type draft, (6) Thread winding The winding speed was 1000 m / min.

[0059] Weaving parameters: thickness 0.7mm, gram weight per square meter 200g / m 2 Wale density 100 pieces / 5cm, Course density 110 pieces / 5cm, Total density 500 pieces / cm 2 .

[0060] <Antibacterial test> GB / T 20944.3-2008 "Textile Product Antibacterial Evaluation, Part 3: Shaking Method" test method: Escherichia coli and Staphylococcus aureus were selected as representative gram-negative and gram-positive bacteria. 15 specimens were cut into 5mm x 5mm test pieces, each weighing 0.75g ± 0.05g. After sterilization, the specimens were placed in three flasks containing bacterial solution. The bottles were sealed and placed in a thermostatic shaker at 24°C ± 1°C and 150 rpm for 18 hours. The bacterial solution was serially diluted 10-fold in a safety cabinet. 1mL aliquots were transferred to sterile culture plates, spread evenly, and sealed with plastic wrap. The plates were then inverted and placed in a 37°C incubator for 24-48 hours. Colony counts and bacterial inhibition rates were then measured.

[0061] <Infrared radiation characteristics test> (1) First, the sample is conditioned under constant temperature and humidity conditions for 24 hours. (2) The temperature of the test room should be kept at 24±2°C and the relative humidity at 65±3%. In order to avoid the interference of the far-infrared radiation of the sun on the test, the curtains in the test room should be closed before the test, and only low illumination sufficient for normal reading should be ensured. (3) Subjects wore loose-fitting short-sleeved or sleeveless clothing. To ensure that the test point was located in the same anatomical location each time the test was performed, reducing errors due to spatial differences, test marks were made in advance with a black pen on the subject's left forearm 7 cm from the antecubital fossa and 7 cm from the distal radioulnar joint of the wrist. To allow the subject to adapt to the test temperature and stabilize their emotions, the subject was asked to sit quietly in the testing room 30 minutes before the test and not move their left arm, minimizing microcirculatory fluctuations due to exercise. After each test, the subject was required to sit quietly and recover for 10 minutes. After the test, the post-covering flow rate ratio Fh was calculated. Finally, the blood flow promotion factor after covering the sample was calculated and used as an evaluation index for the fabric's microcirculation promotion ability. (4) The test device was turned on and the distance between the test device itself and the subject's forearm was adjusted.

[0062] <Negative ion characteristic test> GB / T 30128-2013 "Measurement and evaluation of negative ion generation rate for textile products" was referenced.

[0063] <Washing durability test> The washing resistance test standard of the magnetic fabric was carried out according to the GB / T3921.1-1997 standard method.

[0064] [Table 1]

[0065] [Table 2]

[0066] From the table, it can be seen that Example 4 had the best antibacterial effect, with a bacterial inhibition rate of 99% against Escherichia coli and Staphylococcus aureus, demonstrating excellent antibacterial properties. It was also found that the 1+2 pseudo-rib knit fabric had the highest antibacterial effect, followed by the 1+1 pseudo-plain knit fabric, and the plain weave plated fabric had a poorer antibacterial effect. This is because, compared with the 1+2 pseudo-rib knit fabric and the 1+1 pseudo-plain knit fabric, the plain weave plated fabric is 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, as the coffee charcoal nanofibers added to the fabric provided blood flow promotion, i.e., far-infrared radiation. Furthermore, the higher the coffee charcoal content, the greater the blood flow promotion effect of the fabric. The order was 1+2 pseudo-rib knitting > 1+1 pseudo-plain knitting > plain weave plated knitting. This is because the three types of fabric weaves have different fabric thicknesses and different coffee charcoal content within the same fabric area. Therefore, the 1+2 pseudo-rib knitting fabric had the best blood flow promotion effect, followed by the 1+1 pseudo-plain knitting fabric, and the plain weave plated knitting fabric had the worst promotion effect.

[0069] [Table 4]

[0070] Coffee charcoal has excellent electrical properties for emitting negative ions, and the higher the coffee charcoal content, the more negative ions the fabric generated. The 1+2 pseudo-rib knit fabric generated the highest amount of negative ions, followed by the 1+1 pseudo-plain knit fabric, and the plain weave plated knit fabric generated the lowest. This is because the 1+2 pseudo-rib knit fabric is thicker and fluffier than the other two fabrics, with larger gaps, resulting in a larger specific surface area and more negative ions generated per unit area.

[0071] [Table 5]

[0072] As can be seen from the table, Example 4 had the best washing resistance, while the magnetic induction strength of the fabrics in the comparative examples showed a more obvious decrease. This is because some of the magnetic powder attached to the surface of the magnetic fabric fell off during the washing process. However, the decrease in magnetic induction strength of the magnetic fabric as a whole was not significant, indicating that the magnetic powder was firmly bonded to the fibers, with little loss of magnetic powder particles during the washing process, and the magnetic fabric had excellent washing resistance.

[0073] These specific examples are merely for clarifying the technical content of the present invention and are not intended to limit the present invention. After reading this specification, a person skilled in the art may make non-creative modifications to these examples as necessary, but such modifications should be protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A method for manufacturing a magnetic health care fabric with antibacterial and infrared radiation properties, comprising: Step 1: BFO preparation Samarium oxide is dissolved in nitric acid solution to prepare a samarium nitrate solution, and then DMF solution is taken, iron nitrate and bismuth nitrate (excess Bi) are added respectively, and the solids are stirred until completely dissolved, then samarium nitrate solution is added, and after uniform stirring, citric acid is added, and the solids are stirred until completely dissolved, and then the mixed solution is ultrasonicated, and finally the mixed solution is placed on a magnetic stirrer, and stirred with a magnetic stirrer, and PVP powder is slowly added, and the PVP is stirred until completely dissolved, Step 2: Preparation of nano ZnO dispersion A certain amount of nano-ZnO is weighed on a balance and transferred to a beaker, distilled water and a certain amount of dispersant are added, and ultrasonic treatment is performed at room temperature. Ethylene glycol (EG) is then added to the beaker to prepare a dispersion slurry. The ultrasonic treatment is continued, and the mixture is evaporated and dehydrated to finally obtain a nano-ZnO dispersion in a slurry state. Step 3: Preparation of magnetic BFO@ZnO particles The nano-ZnO dispersion was mixed with the BFO precursor solution and ultrasonically dispersed to obtain a magnetic BFO@ZnO particle solution; Step 4: Spinning Produce magnetic fibers using electrospinning; Process 5: Weaving By weaving according to different interlacing ratios and weave structures, different specifications of fabric can be obtained. A method for manufacturing a magnetic health care fabric with 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 to 8.4 × 10 －３ mol of bismuth nitrate (Bi excess 5-10%) is added to the mixture, stirring until the solid is completely dissolved; then 0.4-0.8 mL of samarium nitrate solution is added and stirred evenly; 4-10 g of citric acid is added and stirred until the solid is completely dissolved; then the mixture is ultrasonicated for 10-20 minutes; finally, the mixture is placed on a magnetic stirrer and stirred with a magnetic stirrer; 3-3.5 g of PVP powder is slowly added and stirred until the PVP is completely dissolved, thereby forming a BFO solution.

3. The method for manufacturing a magnetic health care fabric with antibacterial and infrared radiation properties according to claim 2, characterized in that 20-25 g of nano ZnO is weighed out on a balance and transferred to a 250-500 mL beaker, 20-30 ml of distilled water and 5-8 g of dispersant are added, and ultrasonicated at room temperature for 30-40 minutes, and then 200-240 g of ethylene glycol (EG) is added to the beaker to prepare a 10-15 wt% dispersion slurry, and ultrasonicated for 60-70 minutes, and then evaporated and dehydrated to finally obtain a nano ZnO dispersion slurry.

4. The method for manufacturing magnetic health care fabric with antibacterial and infrared radiation properties as claimed in claim 3, characterized in that the nano ZnO dispersion is mixed with BFO precursor solution and ultrasonically dispersed for 30-40 minutes to obtain magnetic BFO@ZnO particle solution.

5. The method for producing the magnetic health care fabric with antibacterial and infrared radiation properties according to claim 4, characterized in that spinning is performed using electrostatic spinning, with the parameters being: DC voltage 20-25 kV, distance from needle tip to receiving rotor 20-25 cm, electric field strength 1-1.5 kV / cm, syringe pump feed rate 0.5-1 mL / h, ambient temperature 25-30°C, and humidity 45-50%.

6. The spinning process has the following configuration: (1) Mixed batting process By manually unraveling the fibers, they are separated into sheets, (2) Carding process The carding machine cylinder speed is 360 r / min, and the licker-in roller speed is 850 r / min. (3) Drilling process Pre-drawing of coffee charcoal: dry weight 16g / 3m to 17.6g / 5m, drawing machine model FA306, Draft ratio: 8 to 8.5 times, rear draft: 1 to 1.7 times, speed: 200 to 210 m / min, trumpet: 3 to 3.5 mm, gauge: 5 mm x 15 mm to 7 mm x 20 mm, The drawing speed of the coffee charcoal and magnetic fiber is 200-210 m / min, the trumpet is 3-3.5 mm, and the gauge is 5 mm x 15 mm to 7 mm x 16 mm. (4) Rovering process The twist number of the blended yarn is 5-5.5 times / 10cm, and the FA423 model roving frame is selected. (5) Spinning process Select 1 to 1.5 times rear draft, gauge 1 to 3.0 mm, V-type draft, (6) Thread winding process The winding speed is 1000 to 1200 m / min. The method for manufacturing the magnetic health care fabric with antibacterial and infrared radiation properties according to claim 4.

7. Weaving parameters are thickness 0.7-1.1 mm, gram weight per square meter 200-260 g / m ２ Wale density: 100-120 pieces / 5cm, Course density: 110-200 pieces / 5cm, Total density: 500-900 pieces / cm ２ The method for manufacturing the magnetic health care fabric with antibacterial and infrared radiation properties according to claim 1, characterized in that:

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