阅读说明：本技术 一种衬衫面料及其制备方法 (Shirt fabric and preparation method thereof ) 是由 程丹彤 于 2020-12-04 设计创作，主要内容包括：本发明提供了一种衬衫面料的制备方法,取聚对苯二甲酸乙二醇酯颗粒加入反应器,加热熔融,随后降温加入聚乙烯吡咯烷酮和聚乙二醇,搅拌反应；再加入乙醇,超声搅拌；经离心分离后得多孔聚合物熔融电纺液；取三份聚合物熔融电纺液分别倒入第一微量泵、第二微量泵和第三微量泵中,同轴喷头作为喷射细流的喷丝头,经真空干燥得纳米级多孔纤维束；对纳米级多孔纤维束进行改性得抑菌负氧型聚合物纤维；对棉纤维改性得吸湿型棉纤维；以改性聚合物纤维为经纱,改性棉纤维为纬纱,经纺纱、经纱筒纱染色、织造、整理后得衬衫面料。(The invention provides a preparation method of shirt fabric, which comprises the steps of adding polyethylene glycol terephthalate particles into a reactor, heating and melting, then cooling, adding polyvinylpyrrolidone and polyethylene glycol, and stirring for reaction; adding ethanol, and ultrasonically stirring; carrying out centrifugal separation to obtain a porous polymer molten electrospinning solution; pouring three parts of polymer molten electrospinning liquid into a first micro pump, a second micro pump and a third micro pump respectively, taking a coaxial nozzle as a spinning nozzle for jetting fine flow, and performing vacuum drying to obtain a nano-scale porous fiber bundle; modifying the nano-scale porous fiber bundle to obtain bacteriostatic negative oxygen type polymer fibers; modifying the cotton fiber to obtain the moisture absorption type cotton fiber; the shirt fabric is obtained by spinning, dyeing by using a warp yarn bobbin, weaving and finishing by using the modified polymer fiber as a warp yarn and the modified cotton fiber as a weft yarn.)

1. A preparation method of shirt fabric is characterized by comprising the following steps:

s1: adding polyethylene glycol terephthalate particles into a reactor, heating and melting at the temperature of 220-250 ℃ for 20-40 min; then cooling to 150 ℃ and 170 ℃, adding polyvinylpyrrolidone accounting for 8-16% of the mass ratio of the polyethylene glycol terephthalate and 25-35% of polyethylene glycol, and stirring for reaction for 2-6 h; cooling to 40-50 deg.C, adding ethanol 20-40 wt% of polyethylene glycol terephthalate, and ultrasonic stirring for 30-60 min; centrifuging to obtain a porous polymer;

s2: heating and melting the porous polymer obtained in the step S1 to form an electrospinning solution; pouring three parts into a first micro pump, a second micro pump and a third micro pump respectively, setting a coaxial nozzle with the diameter of the first micro pump of 0.4-0.6mm, the diameter of the second micro pump of 0.8-1.2mm and the diameter of the third micro pump of 0.3-0.7mm as a spinning nozzle for jetting fine flow, controlling the spinning temperature to be 25-45 ℃, the humidity to be 40-60% RH, the extrusion speed of the first micro pump to be 0.3-1.5mL/h, the extrusion speed of the second micro pump to be 0.5-2.5mL/h, the extrusion speed of the third micro pump to be 0.2-2mL/h and the voltage to be 10-25kV, and carrying out vacuum drying to obtain a nano-scale porous fiber bundle;

s3: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, then adding the nano porous fiber bundle obtained in the step S2, stirring, ultrasonically dispersing and spinning to obtain the antibacterial negative oxygen type polymer fiber;

s4: mixing the polyacrylamide aqueous solution and cotton fibers, stirring, ultrasonically dispersing and spinning to obtain moisture-absorbing cotton fibers;

s5: using the bacteriostatic negative oxygen type polymer fiber obtained in the step S3 as warp yarn X1, using the moisture absorption type cotton fiber obtained in the step S4 as weft yarn Y1, and setting the warp density of 450-512/10 cm and the weft density of 300-340/10 cm; the shirt fabric is obtained after spinning, dyeing by using the warp yarn cone yarns, weaving and finishing.

2. The method for preparing a shirt fabric according to claim 1, wherein in step S1, the temperature is increased to 235 ℃ and the shirt fabric is heated and melted for 30 min; then, the temperature is reduced to 165 ℃; the mass ratio of the polyvinylpyrrolidone in the polyethylene glycol terephthalate is 12%; the polyethylene glycol accounts for 30 percent of the mass of the polyethylene glycol terephthalate, and the stirring reaction is carried out for 4.5 hours; the ethanol accounts for 35 percent of the mass ratio of the polyethylene glycol terephthalate, and the ultrasonic stirring is carried out for 45 min.

3. The method for preparing a shirt fabric according to claim 1, wherein in step S2, the diameter of the first micro pump is 0.5mm, the diameter of the second micro pump is 1.1mm, and the diameter of the third micro pump is 0.4 mm; the spinning temperature is 40 ℃, the humidity is 55% RH, the extrusion speed of the first micro pump is 1mL/h, the extrusion speed of the second micro pump is 1.8mL/h, the extrusion speed of the third micro pump is 1.5mL/h, and the voltage is 22 kV.

4. The method for preparing a shirt fabric according to claim 1, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 1-3%, 0.5-1% and 0.2-0.6% of the nano-porous fiber bundles in step S3, respectively; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 20-50; stirring at the speed of 3000-.

5. The method for preparing the shirt fabric according to claim 1, wherein in the step S4, the solid-to-liquid ratio of the cotton fibers to the polyacrylamide aqueous solution is 1: 10-20; magnetically stirring at 50-80 deg.C for 1-2h, ultrasonically dispersing for 20-40min, and spinning at spinning temperature of 280-320 deg.C and spinning speed of 2500-3500 m/min to obtain the moisture absorption fiber.

6. The method for preparing the shirt fabric according to claim 4 or 5, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 2.5%, 0.8% and 0.4% of the nano porous fiber bundles; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 30; stirring at the speed of 4500r/min for 2.5h, ultrasonically dispersing for 30min, spinning at 285 deg.C and at 2300 m/min; the solid-liquid ratio of the cotton fibers to the polyacrylamide aqueous solution is 1: 15; magnetically stirring at 70 deg.C for 1.5 hr, ultrasonically dispersing for 35min, controlling spinning temperature at 300 deg.C and spinning speed at 3200 m/min.

7. The method for preparing a shirt fabric according to claim 1, wherein the warp cone yarn dyeing in the step S5: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, adopting vinyl sulfone dye, wherein the dye dosage is 3.5g/L, and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

8. Shirt fabric produced according to the method for producing a shirt fabric according to claims 1 to 7.

Technical Field

The invention relates to the technical field of shirt fabric preparation, in particular to a multifunctional shirt fabric and a preparation method thereof.

Background

With the development of society, shirts are popular with consumers such as business people. In summer, the demand of consumers for shirts is very large, and various shirt products with various styles and novel styles can be developed by various clothing brands. The pure cotton shirt fabric is prepared by taking natural cotton fibers as raw materials through the working procedures of spinning, weaving, singeing, mercerizing, shaping, preshrinking and the like, and the pure cotton shirt fabric is a fierce shirt product sold in the market because the cotton fibers have the properties of softness, moisture absorption, warmth retention, air permeability and the like and simultaneously cater to the consumer concept of returning to the trueness; however, the pure cotton shirt has poor shape-keeping property, is easy to wrinkle and deform.

The polyester fiber is used as the most widely applied chemical fiber, has good fiber forming performance and mechanical performance, high strength, good light resistance, heat resistance and acid and alkali resistance, good processability and spinnability, and can be spun, blended and interwoven. The terylene fabric is washable, wear-resistant, non-ironing and anti-wrinkle, and is widely applied to the fields of clothes, home textiles, decoration, products and the like. However, the polyester fiber has the defects of poor hygroscopicity, no sweat absorption of fabrics, stuffy feeling during wearing, poor antistatic capability, easy dirt contamination and the like, so that the application and the development of the polyester fiber are greatly restricted. In order to improve the wearing comfort of the polyester fiber and the application added value of the polyester fiber, the polyester fiber is generally improved in the aspects of chemistry or physics, so that the polyester fiber is endowed with higher moisture absorption and sweat releasing performance, and the wearing comfort of the polyester fabric is improved.

At present, after finishing is mostly carried out on shirt fabric, the fabric is mainly padded in finishing liquor, and the like, but most of multifunctional shirt fabric has no radicals or bonds due to the action of related components only through drying, and has poor combination degree, so that the efficacy duration is short. For example, Chinese patent with patent publication No. CN101463556A discloses an anion knitted fabric and a production process thereof, 20-40g/L anion finishing liquid and a softening agent are padded on the fabric, the fabric is dried at 80-110 ℃, and then the fabric is tentered at high temperature of 180 ℃ for 150 plus materials to obtain the knitted fabric capable of releasing anions, but tourmaline of an anion generating body has no group and cannot form valence bond combination with fiber, tourmaline particles can be temporarily fixed on the surface of the fabric only through the pressure of an extrusion roller, and the effect of releasing anions by the fabric is not too long.

Disclosure of Invention

The invention aims to provide a method for preparing a shirt fabric, aiming at overcoming the defects in the prior art, the warp yarns of the fabric are antibacterial negative oxygen type polymer fibers, the weft yarns of the fabric are moisture absorption type surface fibers, and the prepared shirt fabric is comfortable, moisture-absorbing, breathable, negative-oxidizing, antibacterial and anti-fouling and good in draping feeling. The preparation method comprises the steps of preparing polymer particles into porous polymer fibers in the preparation process of the antibacterial negative oxygen type polymer fibers, and obtaining specific nano-scale porous fiber bundles on the basis of the porous polymer fibers, so that the fibers and the fiber bundles have rich pore structures, an ion binding space is provided for later-stage modified polymer fibers, and functional groups are more firmly bound with the polymer fiber fabric.

In order to achieve the purpose, the invention adopts the technical scheme that:

a preparation method of shirt fabric comprises the following steps:

s1: adding polyethylene glycol terephthalate particles into a reactor, heating and melting at the temperature of 220-250 ℃ for 20-40 min; then cooling to 150 ℃ and 170 ℃, adding polyvinylpyrrolidone accounting for 8-16% of the mass ratio of the polyethylene glycol terephthalate and 25-35% of polyethylene glycol, and stirring for reaction for 2-6 h; cooling to 40-50 deg.C, adding ethanol 20-40 wt% of polyethylene glycol terephthalate, and ultrasonic stirring for 30-60 min; centrifuging to obtain a porous polymer;

s2: heating and melting the porous polymer obtained in the step S1 to form an electrospinning solution; pouring three parts into a first micro pump, a second micro pump and a third micro pump respectively, setting a coaxial nozzle with the diameter of the first micro pump of 0.4-0.6mm, the diameter of the second micro pump of 0.8-1.2mm and the diameter of the third micro pump of 0.3-0.7mm as a spinning nozzle for jetting fine flow, controlling the spinning temperature to be 25-45 ℃, the humidity to be 40-60% RH, the extrusion speed of the first micro pump to be 0.3-1.5mL/h, the extrusion speed of the second micro pump to be 0.5-2.5mL/h, the extrusion speed of the third micro pump to be 0.2-2mL/h and the voltage to be 10-25kV, and carrying out vacuum drying to obtain a nano-scale porous fiber bundle;

s3: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, then adding the nano porous fiber bundle obtained in the step S2, stirring, ultrasonically dispersing and spinning to obtain the antibacterial negative oxygen type polymer fiber;

s4: mixing the polyacrylamide aqueous solution and cotton fibers, stirring, ultrasonically dispersing and spinning to obtain moisture-absorbing cotton fibers;

s5: using the bacteriostatic negative oxygen type polymer fiber obtained in the step S3 as warp yarn X1 and the moisture absorption type cotton fiber Y1 obtained in the step S4 as weft yarn, and setting the warp density of 450-512 pieces/10 cm and the weft density of 300-340 pieces/10 cm; the shirt fabric is obtained after spinning, dyeing by using the warp yarn cone yarns, weaving and finishing.

More preferably, the temperature is increased to 235 ℃ in the step S1, and the mixture is heated and melted for 30 min; then, the temperature is reduced to 165 ℃; the mass ratio of the polyvinylpyrrolidone in the polyethylene glycol terephthalate is 12%; the polyethylene glycol accounts for 30 percent of the mass of the polyethylene glycol terephthalate, and the stirring reaction is carried out for 4.5 hours; the ethanol accounts for 35 percent of the mass ratio of the polyethylene glycol terephthalate, and the ultrasonic stirring is carried out for 45 min.

More preferably, in step S2, the diameter of the first micro pump is 0.5mm, the diameter of the second micro pump is 1.1mm, and the diameter of the third micro pump is 0.4 mm; the spinning temperature is 40 ℃, the humidity is 55% RH, the extrusion speed of the first micro pump is 1mL/h, the extrusion speed of the second micro pump is 1.8mL/h, the extrusion speed of the third micro pump is 1.5mL/h, and the voltage is 22 kV.

More preferably, the ratio of the nano titanium hydroxide, the nano silver and the nano silicon dioxide in the nano-scale porous fiber bundle in the step S3 is respectively 1-3%, 0.5-1% and 0.2-0.6%; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 20-50; stirring at the speed of 3000-.

More preferably, the solid-to-liquid ratio of the cotton fiber to the polyacrylamide aqueous solution in the step S4 is 1: 10-20; magnetically stirring at 50-80 deg.C for 1-2h, ultrasonically dispersing for 20-40min, and spinning at spinning temperature of 280-320 deg.C and spinning speed of 2500-3500 m/min to obtain the moisture absorption fiber.

More preferably, the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 2.5%, 0.8% and 0.4% of the nano-scale porous fiber bundle; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 30; stirring at the speed of 4500r/min for 2.5h, ultrasonically dispersing for 30min, spinning at 285 deg.C and at 2300 m/min; the solid-liquid ratio of the cotton fibers to the polyacrylamide aqueous solution is 1: 15; magnetically stirring at 70 deg.C for 1.5 hr, ultrasonically dispersing for 35min, controlling spinning temperature at 300 deg.C and spinning speed at 3200 m/min.

More preferably, the warp package yarn is dyed in step S5: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, adopting vinyl sulfone dye, wherein the dye dosage is 3.5g/L, and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

Has the advantages that:

1. in the process of preparing the porous polymer, the polyethylene glycol terephthalate particles are selected as the main raw material, so that the polyethylene glycol terephthalate has high yield, light weight and low production cost, and has good friction resistance, heat resistance, shape retention, organic solvent resistance and weather resistance.

The melting point of the polyethylene glycol terephthalate is higher, in order to achieve the porous effect, polyvinylpyrrolidone with the same higher boiling point is selected as a pore-foaming agent, ethanol is added after the melting is finished to remove the pore-foaming agent, and the space originally occupied by the pore-foaming agent is reserved, so that the polymer has a porous structure; if a low boiling point material is used, it will volatilize during the melting process and affect the pore-forming effect. When the amount of the pore-forming agent is too much, the generated pore channel and pores are too large, and the physical properties such as strength, toughness and the like of the polymer are easily reduced; if the amount is too small, the number of generated pores is too small, and thus, more accommodation space cannot be provided for the modifying substance, and the desired modifying effect cannot be achieved. By selecting proper melting reaction temperature and polyvinylpyrrolidone dosage, the prepared polymer has the pore diameter of 20-50nm, is rich in pores, uniform in distribution and not easy to collapse, and provides a good structural basis for subsequent modification.

Polyethylene glycol is selected as a dispersing agent, and has an oxygen ether group, so that the polyethylene glycol is easy to generate an ion affinity effect with the surface of oxygen-containing polyvinylpyrrolidone particles, under the affinity effect, the polyethylene glycol is easy to adsorb on the surface of the polyvinylpyrrolidone particles to form a layer of polymer protective film, and when mass points of polyethylene glycol terephthalate particles are close to each other, electrostatic repulsion and a high polymer steric hindrance effect are added, so that the dispersing effect is better achieved. The dispersant is used in an excessive amount, which causes waste of the solvent, and the dispersant cannot achieve the dispersing effect if the dispersant is used in an insufficient amount.

2. In the process of preparing the modified polymer fiber, three parts of porous polymer electrospinning liquid are selected, a proper three-layer diameter coaxial nozzle is controlled to be used as a spinning nozzle for jetting fine flow, parameters such as spinning temperature, humidity, shell layer extrusion speed, core layer extrusion speed, voltage and the like are optimized, and the nano-scale porous polymer fiber bundle is obtained, so that the storage channel of a modified substance is further improved, and the combination degree of the modified substance and the polymer fiber is improved. On the basis, nano titanium hydroxide, nano silver and nano silicon dioxide are selected, and the nano titanium hydroxide, the nano silver and the nano silicon dioxide react with the nano porous polymer fiber bundle in the form of ultrafine particles, and the modified polymer fiber with the bacteriostatic health-care function is prepared after dispersion and spinning.

3. In order to further improve the comfort and moisture absorption performance of the shirt fabric and improve the perspiration effect, the modified cotton fiber is prepared by mixing the polyacrylamide aqueous solution and the cotton fiber, fully dispersing and controlling the technological parameters such as spinning temperature, spinning speed and the like.

4. The preparation method of the shirt fabric is characterized in that the modified antibacterial negative oxygen type polymer fibers are used as warp yarns, the modified moisture absorption type cotton fibers are used as weft yarns, and the proper proportion of the warp yarns and the weft yarns is adjusted, so that the shirt fabric has the characteristics of the polymer fibers and the cotton fibers at the same time.

Detailed Description

The present invention is further illustrated below by reference to the following examples, which are intended to be illustrative of the invention only and are not intended to be limiting.

Example 1

S1: adding polyethylene glycol terephthalate particles into a reactor, heating to 220 ℃ and melting for 20 min; then cooling to 150 ℃, adding polyvinylpyrrolidone and 25% polyethylene glycol accounting for 8% of the mass ratio of the polyethylene glycol terephthalate, and stirring for reaction for 4.5 hours; then adding ethanol accounting for 20 percent of the mass ratio of the polyethylene glycol terephthalate, and ultrasonically stirring for 30 min; centrifuging to obtain a porous polymer;

s2: heating and melting the porous polymer obtained in the step S1 to form an electrospinning solution; taking three parts, respectively pouring the three parts into a first micro pump, a second micro pump and a third micro pump, controlling a coaxial nozzle with the diameter of the first micro pump being 0.4mm, the diameter of the second micro pump being 0.8mm and the diameter of the third micro pump being 0.3mm as a spinning nozzle for jetting fine flow, wherein the spinning temperature is 25 ℃, the humidity is 40% RH, the extrusion speed of the first micro pump is 0.3mL/h, the extrusion speed of the second micro pump is 0.5mL/h, the extrusion speed of the third micro pump is 0.4mL/h and the voltage is 10kV, and obtaining the nano-scale porous polymer fiber bundle through vacuum drying;

s3: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, and then adding the emulsion into the nano-scale porous fiber bundle obtained in the step S3, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 1%, 0.5% and 0.2% of the nano-scale porous fiber bundle; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 20; stirring at the speed of 3000r/min for 2h, ultrasonically dispersing for 25min, and spinning at the spinning temperature of 270 ℃ and the spinning speed of 2000 m/min to form the antibacterial negative oxygen type polymer fiber;

s4: mixing cotton fiber and polyacrylamide aqueous solution, wherein the solid-to-liquid ratio of the cotton fiber to the polyacrylamide aqueous solution is 1: 10; magnetically stirring at 50 ℃ for 1h, ultrasonically dispersing for 20min, and spinning at the spinning temperature of 280 ℃ and the spinning speed of 2500 m/min to form the moisture absorption type cotton fiber;

s5: using the bacteriostatic negative oxygen type polymer fiber obtained in the step S3 as warp yarn X1, using the moisture absorption type cotton fiber Y1 obtained in the step S4 as weft yarn, wherein the warp density is 450 pieces/10 cm, and the weft density is 300 pieces/10 cm; then spinning, dyeing by using a warp yarn cone, weaving and finishing to obtain the shirt fabric. Wherein, warp cone yarn dyeing: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, adopting vinyl sulfone dye, wherein the dye dosage is 3.5g/L, and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

According to GB/T20944.3-2008 < evaluation of antibacterial performance of textiles part three: the oscillating method, GB/T5453-1997 determination of textile fabric air permeability, GB/T12704.1-2009 textile fabric moisture permeability test method part 1: wet absorption method, etc., the properties are as follows: the shirt fabric obtained in example 1 has a bacteriostatic rate of 97.6% for staphylococcus aureus, 97.1% for candida albicans and 96.9% for escherichia coli; air permeability of 85.3m²(s) moisture permeability of 280.4 g/(m)²H), negative ion index of 4500 pieces/cm³Static sag 45%, dynamic sag 48%, wrinkle recovery angle (warp) 220 °, wrinkle recovery angle (weft) 180 °.

Example 2

S1: adding polyethylene glycol terephthalate particles into a reactor, heating to 250 ℃ and melting for 40 min; then cooling to 170 ℃, adding polyvinylpyrrolidone and polyethylene glycol accounting for 16 percent of the mass ratio of the polyethylene glycol terephthalate, and stirring for reaction for 6 hours; then adding ethanol accounting for 40 percent of the mass ratio of the polyethylene glycol terephthalate, and ultrasonically stirring for 60 min; centrifuging to obtain a porous polymer;

s2: heating and melting the porous polymer obtained in the step S1 to form an electrospinning solution; taking three parts, respectively pouring the three parts into a first micro pump, a second micro pump and a third micro pump, controlling a coaxial nozzle with the diameter of the first micro pump being 0.6mm, the diameter of the second micro pump being 1.2mm and the diameter of the third micro pump being 0.7mm to be used as a spinning nozzle for jetting fine flow, wherein the spinning temperature is 45 ℃, the humidity is 60% RH, the extrusion speed of the first micro pump is 1.5mL/h, the extrusion speed of the second micro pump is 2.5mL/h, the extrusion speed of the third micro pump is 2mL/h, the voltage is 25kV, and obtaining the nano-scale porous polymer fiber bundle through vacuum drying;

s3: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, and then adding the emulsion into the nano-scale porous fiber bundle obtained in the step S3, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 3%, 1% and 0.6% of the nano-scale porous fiber bundle; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 50; stirring for 4 hours at the speed of 5000r/min, ultrasonically dispersing for 35 minutes, and spinning at the spinning temperature of 300 ℃ and the spinning speed of 2500 m/min to form the antibacterial negative oxygen type polymer fiber;

s4: mixing cotton fiber and polyacrylamide aqueous solution, wherein the solid-to-liquid ratio of the cotton fiber to the polyacrylamide aqueous solution is 1: 20; magnetically stirring for 2h at 80 ℃, ultrasonically dispersing for 40min, and spinning at the spinning temperature of 320 ℃ and the spinning speed of 3500 m/min to form the moisture absorption type cotton fiber;

s5: using the bacteriostatic negative oxygen type polymer fiber obtained in the step S3 as warp yarn X1, using the moisture absorption type cotton fiber Y1 obtained in the step S4 as weft yarn, wherein the warp density is 512 pieces/10 cm, and the weft density is 340 pieces/10 cm; then spinning, dyeing by using a warp yarn cone, weaving and finishing to obtain the shirt fabric. Wherein, warp cone yarn dyeing: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, using3.5g/L of ene sulfone dye and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

Through detection, the shirt fabric obtained in example 2 has the bacteriostatic rate of 98.1% of staphylococcus aureus, 97.3% of candida albicans and 96.5% of escherichia coli; air permeability of 84.7m²Permeability of 276.8 g/(m)²H), negative ion index of 4512/cm³Static sag 46%, dynamic sag 47%, crimp recovery angle (warp) 216 °, crimp recovery angle (weft) 178 °.

Example 3

S1: adding polyethylene glycol terephthalate particles into a reactor, heating to 235 ℃ and melting for 30 min; then cooling to 165 ℃, adding polyvinylpyrrolidone and 30% polyethylene glycol which account for 12% of the polyethylene glycol terephthalate by mass, and stirring for reaction for 4.5 h; then adding ethanol accounting for 35 percent of the mass ratio of the polyethylene terephthalate, and ultrasonically stirring for 45 min; centrifuging to obtain a porous polymer;

s2: heating and melting the porous polymer obtained in the step S1 to form an electrospinning solution; taking three parts, respectively pouring the three parts into a first micro pump, a second micro pump and a third micro pump, controlling a coaxial nozzle with the diameter of the first micro pump being 0.5mm, the diameter of the second micro pump being 1.1mm and the diameter of the third micro pump being 0.4mm as a spinning nozzle for jetting the thin stream, wherein the spinning temperature is 40 ℃, the humidity is 55% RH, the extrusion speed of the first micro pump is 1mL/h, the extrusion speed of the second micro pump is 1.8mL/h, the coaxial nozzle with the diameter of the third micro pump being 0.6mm is used as a spinning nozzle for jetting the thin stream, wherein the spinning temperature is 40 ℃, the humidity is 55% RH, the extrusion speed of the first micro pump is 1mL/h, the extrusion speed of the second micro pump is 1.8mL/h, the extrusion speed of the third micro pump is 1.5mL/h, and the voltage is 22kV, and obtaining the nano-scale porous polymer fiber bundle by vacuum drying;

s3: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, and then adding the emulsion into the nano-scale porous fiber bundle obtained in the step S3, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 2.5%, 0.8% and 0.4% of the nano-scale porous fiber bundle; the solid-liquid ratio of the nano-scale porous fiber bundle to the deionized water is 1: 30; stirring at the speed of 4500r/min for 2.5h, ultrasonically dispersing for 30min, and spinning at the spinning temperature of 285 ℃ and the spinning speed of 2300 m/min to form the antibacterial negative oxygen type polymer fiber;

s4: mixing cotton fiber and polyacrylamide aqueous solution, wherein the solid-to-liquid ratio of the cotton fiber to the polyacrylamide aqueous solution is 1: 15; magnetically stirring for 1.5h at 70 ℃, ultrasonically dispersing for 35min, and spinning at the spinning temperature of 300 ℃ and the spinning speed of 3200 m/min to form the moisture absorption type cotton fiber;

s5: using the bacteriostatic negative oxygen type polymer fiber obtained in the step S3 as warp yarn X1, using the moisture absorption type cotton fiber Y1 obtained in the step S4 as weft yarn, wherein the warp density is 500 pieces/10 cm, and the weft density is 320 pieces/10 cm; then spinning, dyeing by using a warp yarn cone, weaving and finishing to obtain the shirt fabric. Wherein, warp cone yarn dyeing: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, adopting vinyl sulfone dye, wherein the dye dosage is 3.5g/L, and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

Through detection, the shirt fabric obtained in example 3 has 99.7% of staphylococcus aureus inhibition rate, 99.8% of candida albicans inhibition rate and 99.3% of escherichia coli inhibition rate; air permeability of 90.4m²Permeability of 298.3 g/(m)²H), negative ion index of 4545/cm³Static sag 50%, dynamic sag 52%, crimp recovery angle (warp) 238 °, crimp recovery angle (weft) 193 °.

Comparative example 1

The difference from example 1 is that polycaprolactone is used instead of polyethylene terephthalate in step S1, and other steps and conditions are unchanged.

The performance test compared with the example 1 is as follows:

therefore, the polyethylene glycol terephthalate is used as the main raw material, compared with polycaprolactone, the performances of the polyurethane foam material in the aspects of wear resistance, crease resistance, drapability and the like are obviously improved, and the performances of bacteriostasis, ventilation, moisture absorption, negative ion index and the like are slightly improved due to different pore structures formed by different raw materials.

Comparative example 2

The difference from example 1 is that instead of polyvinylpyrrolidone in step S1, dichloromethane was used, and other steps and conditions were unchanged.

The performance test compared with the example 1 is as follows:

performance of	Comparative example 2	Example 1
			Staphylococcus aureus inhibitory rate (%)	92.1	97.6
Candida albicans inhibitory rate (%)	90.6	97.1
			Escherichia coli inhibitory rate (%)	89.7	96.9
Air permeability (m)2/s)	80.7	85.3
			Moisture permeability g/(m)2·h)	273.1	280.4
The negative ions refer to several/cm3	3000	4500
			Static degree of drapability%	42	45
Dynamic degree of drapability%	45	48
			Angle of crease recovery (warp direction) °	207	220
Crease recovery angle (weft direction) °	165	180
			Coefficient of friction	0.11	0.09

Therefore, dichloromethane is used for replacing polyvinylpyrrolidone in the step S1, and due to the fact that dichloromethane is volatilized in the melting process, the pore structure is incomplete and not abundant, the modified particle load of the subsequent steps is affected, the storage space of the modified particles is reduced, and the bacteriostasis and negative ions are greatly reduced.

Comparative example 3

The difference from example 1 is that polyethylene is used instead of polyethylene glycol in step S1, and other steps and conditions are not changed.

The performance test compared with the example 1 is as follows:

therefore, it can be seen that, in the step S1, polyethylene replaces polyethylene glycol, and no oxygen ether group is present on the surface of polyethylene, so that a protective film cannot be formed, and there are no electrostatic repulsion and no steric hindrance effect of the polymer, the dispersion effect is poor, and the dispersion is not uniform enough, so that the pore structure of the polymer is not uniformly distributed, and therefore, the overall performance of the prepared fabric is inferior to that of the product obtained in example 1.

Comparative example 4

The difference from embodiment 1 is that step S1 is different,

step S1: adding polyethylene glycol terephthalate particles into a reactor, heating to 220 ℃ and melting for 20 min; then cooling to 150 ℃, adding polyvinylpyrrolidone and polyethylene glycol accounting for 30 percent of the mass ratio of the polyethylene glycol terephthalate, and stirring for reaction for 2 hours; then adding ethanol accounting for 20 percent of the mass ratio of the polyethylene glycol terephthalate, and ultrasonically stirring for 20 min; centrifuging to obtain a porous polymer; the other steps and conditions were not changed.

The performance test compared with the example 1 is as follows:

performance of	Comparative example 4	Example 1
			Staphylococcus aureus inhibitory rate (%)	93.7	97.6
Candida albicans inhibitory rate (%)	94.1	97.1
			Escherichia coli inhibitory rate (%)	93.6	96.9
Air permeability (m)2/s)	83.0	85.3
			Moisture permeability g/(m)2·h)	267.5	280.4
The negative ions refer to several/cm3	4300	4500
			Static degree of drapability%	37	45
Dynamic degree of drapability%	36	48
			Angle of crease recovery (warp direction) °	180	220
Crease recovery angle (weft direction) °	150	180
			Coefficient of friction	0.13	0.09

Therefore, due to the increase of the consumption of the polyvinylpyrrolidone and the polyethylene glycol, the prepared pore channel is larger, the number of pores is too large, and the physical properties of the polyethylene glycol terephthalate such as wear resistance, folding resistance and the like are obviously reduced; and the modified particles are easy to agglomerate, and other performances such as bacteriostasis and the like are also indirectly influenced.

Comparative example 5

The difference from embodiment 1 lies in step S1,

step S1: adding polyethylene glycol terephthalate particles into a reactor, heating to 220 ℃ and melting for 20 min; then cooling to 150 ℃, adding polyvinylpyrrolidone and polyethylene glycol accounting for 5 percent of the mass ratio of the polyethylene glycol terephthalate, and stirring for reaction for 2 hours; then adding ethanol accounting for 20 percent of the mass ratio of the polyethylene glycol terephthalate, and ultrasonically stirring for 20 min; centrifuging to obtain a porous polymer; the other steps and conditions were not changed.

The performance test compared with the example 1 is as follows:

performance of	Comparative example 5	Example 1
			Staphylococcus aureus inhibitory rate (%)	91.0	97.6
Candida albicans inhibitory rate (%)	90.8	97.1
			Escherichia coli inhibitory rate (%)	90.1	96.9
Air permeability (m)2/s)	82.4	85.3
			Moisture permeability g/(m)2·h)	265.7	280.4
Negative ion index number/cm3	3200	4500
			Static degree of drapability%	42	45
Dynamic degree of drapability%	46	48
			Angle of crease recovery (warp direction) °	215	220
Crease recovery angle (weft direction) °	172	180
			Coefficient of friction	0.10	0.09

Therefore, due to the reduction of the consumption of the polyvinylpyrrolidone and the polyethylene glycol, the prepared particles have fewer pores, small pores, less space for subsequent modified particles, uneven dispersion and the like, and the performances of bacteriostasis, negative ions and the like are affected.

Comparative example 6

Comparative example 1 differs from example 1 in that the spinning was carried out directly using polyethylene terephthalate fibres and cotton fibres: polyethylene terephthalate fiber is used as warp yarn X1, cotton fiber Y1 is used as weft yarn, the warp density is 450 pieces/10 cm, and the weft density is 300 pieces/10 cm; then spinning, dyeing by using a warp yarn cone, weaving and finishing to obtain the shirt fabric.Wherein, warp cone yarn dyeing: comprises loosening a cylinder, filling into a cage, putting into a jar, pretreating, dyeing, post-treating, dehydrating, drying and tightening the cylinder; the pretreatment temperature is 150 ℃, the pretreatment time is 40min, and the solid-to-liquid ratio is 1:10, NaOH dosage of 2.5g/L and concentration of 30 percent H₂0₂The dosage is 4 g/L; during dyeing, the bath ratio is 1:10, adopting vinyl sulfone dye, wherein the dye dosage is 3.5g/L, and Na₂SO₄The dosage is 40g/L, Na₂CO₃The dosage is 15g/L, and the dosage of the chelating dispersant R-DL is 0.5 g/L; weaving: comprises warping, slashing, drafting and weaving; the sizing process adopts K-5000 sizing agent, the sizing rate is 11%, and the weaving machine adopts a jacquard weaving machine.

The performance test compared with the example 1 is as follows:

therefore, compared with the shirt fabric prepared from unmodified polyethylene terephthalate fibers and cotton fibers, the shirt fabric prepared from the unmodified polyethylene terephthalate fibers and cotton fibers has no antibacterial and health-care functions, and the air permeability, the hygroscopicity and the drapability of the shirt fabric are slightly reduced.

Comparative example 7

Comparative example 7 is different from example 1 in that polyethylene terephthalate fiber and cotton fiber are directly used to be modified, respectively, i.e., S1: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, and then adding polyethylene terephthalate fiber, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 1%, 0.5% and 0.2% of the polyethylene terephthalate fiber; the solid-to-liquid ratio of the polyethylene terephthalate fiber to the deionized water is 1: 20; stirring at the speed of 3000r/min for 2h, ultrasonically dispersing for 25min, and spinning at the spinning temperature of 270 ℃ and the spinning speed of 2000 m/min to form the modified polymer fiber;

s2: mixing cotton fiber and polyacrylamide aqueous solution, wherein the solid-to-liquid ratio of the cotton fiber to the polyacrylamide aqueous solution is 1: 10; magnetically stirring for 1h at 50 ℃, ultrasonically dispersing for 20min, and spinning at the spinning temperature of 280 ℃ and the spinning speed of 2500 m/min to form the moisture-absorbing profile fiber;

other steps and conditions were the same as in example 1.

The performance test compared with the example 1 is as follows:

performance of	Comparative example 7	Example 1	COMPARATIVE EXAMPLE 7 (30 washes)	Example 1 (30 washes)
					Staphylococcus aureus inhibitory rate (%)	89.0	97.6	80.1	96.8
Candida albicans inhibitory rate (%)	88.4	97.1	80.4	96.5
					Escherichia coli inhibitory rate (%)	89.1	96.9	83.4	96.1
Air permeability (m)2/s)	79.6	85.3	78.4	84.7
					Moisture permeability g/(m)2·h)	250.3	280.4	240.1	279.0
The negative ions refer to several/cm3	2500	4500	1000	4480
					Static degree of drapability%	43	45	42	44
Dynamic degree of drapability%	45	48	44	47
					Angle of crease recovery (warp direction) °	200	220	195	218
Crease recovery angle (weft direction) °	170	180	168	176
					Coefficient of friction	0.11	0.09	0.11	0.09

The porous polymer fiber prepared by the method of embodiment 1 has a porous structure, so that more functional components can penetrate into the fiber bundle, the effect is good, the combination of the functional components is more compact, and the effect is still good after 30 washing tests.

Comparative example 8

Comparative example 8 is different from example 1 in that the porous polymer fiber prepared at one time using the polyethylene terephthalate particles was subjected to functional modification, i.e., S2: adding nano titanium hydroxide, nano silver and nano silicon dioxide into deionized water to form emulsion, and then adding the emulsion into the porous polymer fiber obtained in the step S1, wherein the nano titanium hydroxide, the nano silver and the nano silicon dioxide account for 1%, 0.5% and 0.2% of the nano porous fiber bundle; the solid-to-liquid ratio of the porous polymer fibers to the deionized water is 1: 20; stirring at the speed of 3000r/min for 2h, ultrasonically dispersing for 25min, and spinning at the spinning temperature of 270 ℃ and the spinning speed of 2000 m/min to form the modified polymer fiber; other steps and conditions were the same as in example 1.

The performance test compared with the example 1 is as follows:

performance of	Comparative example 8	Example 1	COMPARATIVE EXAMPLE 8 (30 washes)	Example 1 (30 washes)
					Staphylococcus aureus inhibitory rate (%)	94.6	97.6	93.2	96.8
Candida albicans inhibitory rate (%)	94.9	97.1	93.5	96.5
					Escherichia coli inhibitory rate (%)	94.8	96.9	93.1	96.1
Air permeability (m)2/s)	83.1	85.3	80.4	84.7
					Moisture permeability g/(m)2·h)	260.8	280.4	254.8	279.0
The negative ions refer to several/cm3	4300	4500	4250	4480
					Static degree of drapability%	44	45	43	44
Dynamic degree of drapability%	46	48	45	47
					Angle of crease recovery (warp direction) °	215	220	213	218
Crease recovery angle (weft direction) °	178	180	172	176
					Coefficient of friction	0.09	0.09	0.10	0.09

The comparison shows that the nano-scale porous fiber bundle is prepared by taking three parts of porous polymer through coaxial spinning, more containing space can be provided for subsequent modified particles, the combination degree is tighter, various performances are improved, the functional substances cannot be greatly lost due to washing, and the shirt fabric has more lasting multifunctionality.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.