Novel antistatic and breathable wool worsted shirt fabric and production method thereof

Abstract

The invention relates to the field of shirt fabrics, and discloses a novel antistatic and breathable wool worsted shirt fabric and a production method of the novel antistatic and breathable wool worsted shirt fabric. Comprising the following raw materials in parts by weight: 45-55 parts of wool fibers, 5-8 parts of graphene modified polyester fibers, 1-2 parts of carbon nanotube modified wool, 8-12 parts of hemp fibers, 3-5 parts of aerogel polyamide fibers, 1-2 parts of silver zeolite composite particles, 10-15 parts of chitosan quaternary ammonium salt viscose fibers, 2-3 parts of a fluoride-free super-hydrophobic nano coating (o.w.f) and 5-10 parts of sulfobetaine modified polyamide. The graphene modified polyester fiber and the carbon nanotube modified wool are mixed, a continuous and stable conductive network is formed in the fabric by utilizing high conductivity of graphene and excellent electron transmission capability of carbon nanotubes, charge accumulation is reduced essentially, and uniform distribution of the conductive fiber is ensured by adopting a siro spinning technology.

Description

Technical Field

[0001] The present invention relates to the technical field of shirt fabrics, in particular to a novel antistatic and breathable wool worsted shirt fabric and a production method thereof. Background Art

[0002] In the textile and apparel sector, wool worsted fabrics are widely used in high-end shirts and other apparel products due to their softness, comfort, and excellent warmth retention. With increasing consumer demand for functional clothing, fabrics with multiple functions, such as antistatic, breathable, and antibacterial properties, have become a research and development hotspot. This is particularly true for business shirts, where functional fabrics not only enhance the wearing experience but also meet the needs of specific environments.

[0003] Traditionally, antistatic treatment of worsted wool shirt fabrics relies primarily on post-finishing techniques, such as coating the fabric surface with antistatic agents. While this method can reduce static electricity to a certain extent, the antistatic agents tend to fall off during washing, resulting in poor durability. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a new type of antistatic and breathable wool worsted shirt fabric and a production method thereof, which solves the problem that the antistatic treatment of traditional wool worsted shirt fabric mainly relies on post-finishing technology, resulting in poor durability.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a new antistatic and breathable wool worsted shirt fabric, comprising the following raw materials in parts by weight: 45-55 parts of wool fiber, 5-8 parts of graphene-modified polyester fiber, 1-2 parts of carbon nanotube-modified wool, 8-12 parts of hemp fiber, 3-5 parts of aerogel nylon fiber, 1-2 parts of silver zeolite composite particles, 10-15 parts of chitosan quaternary ammonium salt viscose fiber, 2-3% fluorine-free super-hydrophobic nano coating (owf), 5-10 parts of sulfonic acid betaine modified nylon, and 2-3 parts of phase change temperature regulating microcapsules.

[0006] By adopting the above technical solution, graphene-modified polyester fiber and carbon nanotube-modified wool are evenly dispersed inside the fabric, forming a stable conductive path, thereby reducing charge accumulation from the essence of the material; at the same time, the exogenous antistatic finishing uses a quaternary ammonium salt antistatic agent that can form a covalent bond with the wool fiber. After treatment, it is firmly attached to the fiber surface to avoid the antistatic agent from falling off due to washing, thereby constructing a dual antistatic system of "endogenous conductive network + exogenous long-lasting antistatic finishing", achieving a balance between the long-term antistatic performance and excellent durability of the fabric, and solving the problem that the antistatic treatment of traditional wool worsted shirt fabrics mainly relies on post-finishing technology, resulting in poor durability, so that the fabric can still maintain a good antistatic effect after multiple washings.

[0007] Preferably, the diameter of the wool fiber is ≤19 μm, and after scale enzyme treatment, the scale removal rate is 40%, the graphene content in the graphene-modified polyester fiber is 0.8-1.2%, and the carbon nanotube loading in the carbon nanotube-modified wool is 0.5-1%.

[0008] Preferably, the hemp fiber is an 18-denier fiber after degumming, and the fiber surface has a groove structure with a depth of 3-5 μm. The porosity of the aerogel nylon fiber is 92%, and the particle size of the silver zeolite composite particles is 50-80 nm. The silver ion release rate is 0.05-0.1 μg / cm 2 / h, the substitution degree of the chitosan quaternary ammonium salt viscose fiber is ≥90%.

[0009] Preferably, the fluorine-free super-hydrophobic nano-coating is prepared into a coating liquid with a solid content of 2% by silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570, the weight ratio of the silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570 is 60%:30%:10% respectively, the particle size of the silica nanoparticles is 10-20nm, and the molecular weight of the polydimethylsiloxane is 5000-10000.

[0010] Preferably, the grafting rate of the sulfonated betaine modified nylon is 8-12%, and its molecular structure is -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The melting point of the phase-change temperature-regulating microcapsules is 24-26°C.

[0011] A method for producing a novel antistatic and breathable wool worsted shirt fabric is applied to the aforementioned novel antistatic and breathable wool worsted shirt fabric, comprising the following steps:

[0012] S1. Pretreatment: Scale enzyme treatment of wool fiber, degumming and groove structure optimization of hemp fiber, preparation of graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonate betaine-modified nylon, silver zeolite composite particles, phase change temperature-regulating microcapsules, and preparation of aerogel nylon fiber;

[0013] S2. Spinning: Pretreated wool fiber, hemp fiber, graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonated betaine-modified nylon, and aerogel nylon fiber are mixed according to weight, and silver zeolite composite particles are added. The mixture is blended in a multi-bin blending machine, carded, drawn, roved, and siro-spun to produce a blended yarn.

[0014] S3, weaving: preparing grey fabric from the blended yarn through a rapier loom, and pre-treating the grey fabric to obtain treated yarn;

[0015] S4. Finishing: The treated yarn is sequentially subjected to antistatic treatment, antibacterial treatment, application of fluorine-free super-hydrophobic nano-coating, phase change temperature regulation function fixation, and soft shaping treatment to obtain the finished fabric.

[0016] Preferably, the S1 specifically includes the following steps:

[0017] Wool fiber scale enzyme treatment: The wool fiber was pre-washed in acetic acid-sodium acetate buffer at 40°C and pH = 5.5 for 10 minutes, and 2% owf composite protease was added. The wool fiber was shaken at 50°C for 30 minutes, and the scale removal rate was controlled to 40%. The wool fiber was rinsed with deionized water three times and then dried at 60°C. The bath ratio of the acetic acid-sodium acetate buffer was 1:20, and the composite protease contained 5000U / g of keratinase.

[0018] Hemp fiber degumming and groove optimization: the hemp raw hemp was chemically degummed with 5% NaOH solution, and then biologically degummed by adding 1% owf cellulase. 2 The carding machine was used for three passes to obtain 18-count fiber with a groove depth of 3-5 μm on the fiber surface. The bath ratio of the chemical degumming was 1:20, scouring was performed at 95°C for 60 minutes, the pH value of the cellulase was 6.5, the temperature of the biological degumming was 50°C, and the treatment time was 45 minutes.

[0019] Preparation of graphene-modified polyester fibers: Graphene was ultrasonically dispersed in DMF solvent, 0.5% silane coupling agent KH-550 was added, and the mixture was blended with PET chips at a ratio of 98.8:1.2. The fibers were melt-spun at 280°C to produce fibers with a graphene content of 0.8-1.2%, with a graphene monolayer ratio of ≥95%. The concentration of the DMF solvent was 1.5%.

[0020] Preparation of carbon nanotube-modified wool: Multi-walled carbon nanotubes are treated with mixed acid and then dispersed in an aqueous solution containing 0.3% PVP. The wool fibers are ultrasonically treated at 50°C for 30 minutes to increase the carbon nanotube loading to 0.5-1%. The diameter of the multi-walled carbon nanotubes is 10-20 nm, and the concentration of the aqueous solution is 0.5-1%.

[0021] Preparation of chitosan quaternary ammonium salt viscose fiber: chitosan and 3-chloro-2-hydroxypropyltrimethylammonium chloride were reacted at 60°C for 4 hours to obtain chitosan quaternary ammonium salt with a degree of substitution of ≥90%, which was then mixed into viscose stock solution at a ratio of 5% for wet spinning. The molar ratio of chitosan to 3-chloro-2-hydroxypropyltrimethylammonium chloride was 1:1.2.

[0022] Preparation of sulfobetaine-modified nylon: nylon fiber was immersed in a grafting solution containing sodium 3-chloro-2-hydroxypropyl sulfonate and reacted at 60°C for 3 hours to obtain a grafting rate of 8-12% and a molecular structure of -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The modified fiber, the concentration of the grafting solution is 5%, and the pH is 8.5;

[0023] Preparation of silver zeolite composite particles: Type A zeolite was ion exchanged with 0.1MAgNO3 solution for 48 hours and calcined at 500℃ for 2 hours to obtain particles with a diameter of 50-80nm and a silver ion release rate of 0.05-0.1μg / cm 2 / h of particles;

[0024] Preparation of phase-change temperature-regulating microcapsules: After capric acid / lauric acid are melted in a mass ratio of 1:1, they are encapsulated in a melamine-formaldehyde shell material using an in-situ polymerization method to obtain microcapsules with a melting point of 24-26°C and a particle size of 5-10 μm.

[0025] Preferably, the mixing time of the multi-bin cotton mixer in S2 is ≥15 min, the cylinder speed of the carding machine is 320-350 r / min, the doffer speed is 25-30 r / min, and the CV value of the obtained fiber strip is ≤5%, the spindle speed of the siro spinning is 12000-15000 r / min, and the twist coefficient is 350-400.

[0026] Preferably, the opening time of the rapier loom in S3 is 280°, the back beam height is 80 mm, the warp tension is 1500-2000 N, and the pretreatment includes desizing and scouring.

[0027] Preferably, the antistatic treatment in S4 is to use 1% owf dodecyldimethylbenzyl ammonium chloride solution, two dips and two rollings, pre-bake at 80°C for 10min and then bake at 120°C for 5min, the antibacterial treatment is to immerse the treated yarn after antistatic treatment in a mixture of 0.5% owf silver zeolite dispersion and 1% owf chitosan quaternary ammonium salt solution, oscillate at 40°C for 30min, and centrifuge at 2000r / min for 5min and then dry at 60°C, the application of fluorine-free super-hydrophobic nano coating is to immerse the treated yarn after antibacterial treatment in a coating tank containing fluorine-free super-hydrophobic nano coating, use a horizontal padder for two dips and two rollings, pre-bake at 80°C for 5min and then bake at 120°C for 5min Baking at 150°C for 3 minutes to form a hydrophobic structure with a contact angle of more than 130°, the rolling rate of the two dipping and two rolling is 60-70%, the phase change temperature regulation function is fixed by dispersing the phase change temperature regulation microcapsules in an aqueous solution containing 0.3% polyvinyl alcohol, and the treated yarn after applying the fluorine-free super hydrophobic nano coating is dried at 80°C after dipping and baked at 100°C for 2 minutes. The concentration of the aqueous solution is 2% owf, and the rolling rate is 70%. The soft shaping treatment is to fix the phase change temperature regulation function, use 2% owf silicone softener for dipping, and after drying at 80°C, pass through a stenter setting machine at 160°C, a speed of 15m / min, and a width of 150cm.

[0028] The present invention provides a novel antistatic and breathable wool worsted shirt fabric and a production method thereof. It has the following beneficial effects:

[0029] 1. The present invention forms a continuous and stable conductive network inside the fabric by mixing graphene-modified polyester fiber with carbon nanotube-modified wool, utilizing the high conductivity of graphene and the excellent electron transmission ability of carbon nanotubes, thereby essentially reducing charge accumulation. Siro spinning technology is used to ensure uniform distribution of the conductive fibers and avoid agglomeration and failure. At the same time, combined with exogenous antistatic finishing, a quaternary ammonium salt antistatic agent that can form a covalent bond with the amino group of the wool fiber is selected. Through a double dipping and double padding and high-temperature baking process, the antistatic agent is firmly attached to the fiber surface, thereby improving the durability of the antistatic function.

[0030] 2. The present invention utilizes the 3-5μm deep groove structure on the surface of hemp fiber and aerogel nylon fiber with a porosity of 92% to construct multi-level breathable channels, thereby improving the air permeability of the fabric and quickly discharging moisture and heat. At the same time, the phase-change temperature-regulating microcapsules achieve solid-liquid phase transition at 24-26°C, absorbing or releasing heat in real time, allowing the wearer to maintain physical comfort in different environments.

[0031] 3. The present invention adopts silver zeolite composite particles and chitosan quaternary ammonium salt viscose fiber to synergistically fight bacteria, and the silver ion release rate is controlled at 0.05-0.1μg / cm 2 / h, enhancing the antibacterial rate against Escherichia coli and Staphylococcus aureus, and avoiding the risk of excessive migration of silver ions. The fluorine-free super-hydrophobic nano-coating is composed of environmentally friendly materials such as silica nanoparticles and polydimethylsiloxane to form a hydrophobic surface, while avoiding the environmental hazards of fluorine-containing materials, in line with the concept of sustainable development.

[0032] 4. The present invention removes scales from ultrafine wool after treating it with scale enzymes to reduce itching. The sulfonated betaine-modified nylon gives the fabric soft and skin-friendly properties. Combined with a reasonable spinning and weaving process, the wool worsted fabric has a crisp texture and a delicate touch for close-fitting wear, thereby improving product quality and grade. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a flow chart of the method for producing the novel antistatic and breathable wool worsted shirt fabric proposed by the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] An embodiment of the present invention provides a novel antistatic and breathable wool worsted shirt fabric, comprising the following raw materials in parts by weight: 45-55 parts of wool fiber, 5-8 parts of graphene-modified polyester fiber, 1-2 parts of carbon nanotube-modified wool, 8-12 parts of hemp fiber, 3-5 parts of aerogel nylon fiber, 1-2 parts of silver zeolite composite particles, 10-15 parts of chitosan quaternary ammonium salt viscose fiber, 2-3% (owf) fluorine-free super-hydrophobic nano coating, 5-10 parts of sulfonate betaine-modified nylon, and 2-3 parts of phase change temperature regulating microcapsules.

[0036] Specifically, the addition of wool fibers, with their natural scale structure, imparts a soft touch and excellent skin-friendliness to the fabric. The natural gaps between the fibers create an air layer, achieving excellent warmth retention. The porous structure of wool fibers also allows for excellent moisture absorption, absorbing up to 30% of their weight in water without causing dampness. This effectively regulates the microclimate between the human body and the fabric, ensuring a consistently dry and comfortable wearing experience.

[0037] By incorporating graphene-modified polyester fibers, the excellent electrical conductivity of graphene is utilized to construct a conductive network within the fabric, reducing surface resistivity and effectively eliminating static electricity buildup, preventing dust absorption and static interference. Furthermore, graphene's high specific surface area imparts far-infrared emission to the fabric, promoting blood circulation and achieving both warmth retention and improved health.

[0038] By adding carbon nanotube-modified wool, the high strength and high modulus of carbon nanotubes are leveraged to significantly enhance the fabric's mechanical properties and improve its abrasion resistance. Furthermore, the tubular structure of the carbon nanotubes works synergistically with the pores of the wool to form efficient ventilation channels, increasing air flow and making the fabric more breathable.

[0039] The addition of hemp fiber, with its naturally porous structure and irregular cross-section, creates a natural breathable network, further enhancing breathability. Furthermore, the cannabinoids contained in hemp fiber have natural antibacterial properties, with an inhibition rate of over 90% against Staphylococcus aureus and Escherichia coli, effectively suppressing odor and providing a long-lasting, fresh wearing experience.

[0040] By incorporating aerogel nylon fiber, nano-aerogel particles are evenly loaded into the nylon matrix using a sol-gel method. The aerogel's ultra-low thermal conductivity (0.02W / m·K) imparts excellent thermal insulation to the fabric, reducing heat loss in low-temperature environments. Furthermore, the aerogel's nanoscale pore structure further enhances the fabric's breathability, achieving a balance between warmth and breathability.

[0041] By incorporating silver zeolite composite particles, evenly dispersed throughout the fibers through melt spinning technology, the sustained release of silver ions imparts lasting antimicrobial properties to the fabric, enhancing its fungal inhibition rate. Furthermore, the zeolite's porous structure absorbs odor molecules from sweat, combining with its antimicrobial properties to achieve a dual deodorizing effect, ensuring clean and hygienic wear.

[0042] By adding chitosan quaternary ammonium salt viscose fiber, which is modified by graft copolymerization, the positive charge of the quaternary ammonium salt group causes electrostatic adsorption and membrane destruction of bacteria, further improving the antibacterial rate. At the same time, the moisture absorption and moisture retention of chitosan enhances the instantaneous coolness of the fabric, combining the antibacterial and cool touch of the fabric.

[0043] The fluorine-free super-hydrophobic nano-coating is applied using a padding-and-baking process to deposit a 2-3% (owf) fluorine-free super-hydrophobic nano-coating onto the fabric surface. By creating a nano-scale rough structure and combining low-surface-energy materials, the coating achieves a water contact angle exceeding 150°, achieving highly effective water repellency. The fluorine-free formula also meets environmental requirements, enhances washability, maintains hydrophobic properties, and maintains long-lasting protection.

[0044] By adding sulfonate betaine modified nylon, sulfonate betaine is modified by chemical grafting to the nylon, and the zwitterionic structure gives the fabric excellent antistatic properties. At the same time, the hydrophilicity of betaine improves the moisture absorption and quick-drying performance of the fabric, and sweat quickly diffuses and evaporates on the surface of the fabric, keeping the body surface dry.

[0045] The addition of phase-change thermoregulating microcapsules, whose core material is octadecane-based phase-change material, absorbs or releases heat through solid-liquid phase transitions during temperature changes, controlling surface temperature fluctuations within ±2°C. The microcapsules are evenly dispersed within the fiber gaps, ensuring the durability and stability of the thermoregulating function, adapting to fluctuating ambient temperatures.

[0046] By combining the warmth and skin-friendliness of wool fibers, the conductivity of graphene and carbon nanotubes, the breathable insulation of hemp and aerogel fibers, the antibacterial and deodorizing properties of silver zeolite and chitosan, the waterproofing of a superhydrophobic coating, and the functional regulation of betaine and phase change materials, these ingredients work synergistically at the fiber structure and function level to achieve multifunctional integration, including antistatic, high breathability, waterproof and antibacterial properties, and thermal regulation. This addresses the problem of traditional worsted wool shirt fabrics, which rely primarily on post-finishing technology for antistatic treatment and suffer from poor durability.

[0047] The diameter of the wool fiber is ≤19 μm, and after being treated with scale enzyme, the scale removal rate is 40%. The graphene content in the graphene-modified polyester fiber is 0.8-1.2%, and the carbon nanotube loading amount in the carbon nanotube-modified wool is 0.5-1%.

[0048] Specifically, the use of ultrafine wool fibers with a diameter of ≤19μm increases the fiber's specific surface area, enhancing the fabric's soft touch and next-to-skin comfort. Treatment with a scale enzyme results in a 40% scale removal rate, thus balancing anti-felting performance with fiber strength. If the removal rate is too low (<30%), the fabric still faces the risk of felting; if it is too high (>50%), the fiber cortex will be damaged, resulting in a strength reduction of more than 30%. The treated wool fiber's surface is smoother, reducing interfiber friction and further reducing the chance of static electricity generation.

[0049] Adding 0.8-1.2% graphene to polyester fibers can form a continuous conductive network, which stabilizes the surface resistivity of the fabric at 10 8 -10 9 Ω / sq. If the graphene content is less than 0.8%, the conductive path is discontinuous and the antistatic effect is weakened. If it is above 1.2%, it is prone to agglomeration, resulting in a decrease in the mechanical properties of the fiber. The in-situ polymerization process evenly disperses the graphene, ensuring its layered structure is intact and maximizing its conductivity and far-infrared emission.

[0050] Modifying wool with a 0.5-1% carbon nanotube loading creates a dense conductive network on the fiber surface while avoiding the increased rigidity and stiffness that can result from excessive loading (>1%). The high aspect ratio (>100) of carbon nanotubes combined with wool fibers creates three-dimensional breathable channels, increasing air flow by 30%. The reinforcing effect of the carbon nanotubes also increases the fabric's abrasion resistance by 40%, improving the pilling problem of wool fabrics.

[0051] The hemp fiber is an 18-denier fiber after degumming, and the fiber surface has a groove structure with a depth of 3-5 μm. The porosity of the aerogel nylon fiber is 92%, and the particle size of the silver zeolite composite particles is 50-80 nm. The silver ion release rate is 0.05-0.1 μg / cm 2 / h, the substitution degree of chitosan quaternary ammonium salt viscose fiber is ≥90%.

[0052] Specifically, 18-count degummed hemp fibers are selected and mechanically etched to create a 3-5μm deep groove structure on the fiber surface. This fiber count ensures a balance between spinnability and strength. Fibers that are too fine (>20 count) are prone to breakage, while those that are too coarse (<15 count) can affect the fabric's fineness. The groove structure increases the fiber's specific surface area by 50%, significantly improving moisture wicking efficiency while also strengthening interfiber cohesion and reducing yarn hairiness.

[0053] Aerogel nylon fibers with a porosity of 92% were prepared. This high porosity was achieved through a supercritical drying process, ensuring that aerogel nanoparticles (particle size <50nm) were evenly dispersed within the nylon matrix. This 92% porosity reduces the fabric's thermal conductivity to just 0.03W / m·K, a 60% reduction compared to conventional fibers. While maintaining sufficient structural strength, the fiber's mechanical properties are prevented from degrading due to excessive porosity.

[0054] Synthetic silver zeolite particles with a particle size of 50-80nm, which ensures that they are evenly dispersed in the fiber without affecting the feel. 0.05-0.1μg / cm 2 The sustained release rate of silver ions at 100 / h not only continuously inhibits bacterial growth (antibacterial rate against E. coli >95%), but also prevents skin irritation caused by excessive silver ion release. The porous structure of silver zeolite (pore size 2-5nm) simultaneously absorbs odor molecules for long-lasting deodorization.

[0055] Through chemical modification, the degree of substitution of chitosan quaternary ammonium salts is increased to ≥90%. This high degree of substitution ensures sufficient grafting of quaternary ammonium groups, enhancing antibacterial activity (98% inhibition against Staphylococcus aureus). Furthermore, the hydrophilicity of chitosan and the cationic properties of quaternary ammonium salts synergize to increase the instantaneous coolness of the fabric by 0.2°C and improve the fiber's antistatic properties.

[0056] The fluorine-free super-hydrophobic nanocoating is composed of silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570, and is formulated into a coating liquid with a solid content of 2%. The weight ratio of silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570 is 60%:30%:10% respectively. The particle size of the silica nanoparticles is 10-20nm, and the molecular weight of polydimethylsiloxane is 5000-10000.

[0057] Specifically, the coating solution is formulated using silica nanoparticles (10-20nm), polydimethylsiloxane (molecular weight 5,000-10,000), and silane coupling agent KH-570 in a ratio of 60%:30%:10%. Nano-sized silica creates a rough structure, polydimethylsiloxane provides low surface energy, and the silane coupling agent strengthens the coating's bond to the fiber. A 2% solids content can achieve a water contact angle of over 150°, enhance washability, and maintain hydrophobic properties.

[0058] The grafting rate of sulfobetaine modified nylon is 8-12%, and its molecular structure is -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The melting point of phase change temperature regulating microcapsules is 24-26℃.

[0059] Specifically, the grafting rate of modified nylon reaches 8-12% through graft polymerization. This ratio ensures the uniform distribution of zwitterionic groups and stabilizes the surface resistivity of the fabric at 10 8 Ω / sq or less. Betaine molecular structure (-N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - ) improves moisture absorption and quick-drying performance, while reducing the friction coefficient of the fiber surface and reducing static electricity generation.

[0060] Microcapsules are encapsulated with a phase-change material with a melting point of 24-26°C, close to the human body's comfortable temperature. This allows the material to rapidly absorb and release heat during ambient temperature fluctuations, keeping surface temperature fluctuations within ±2°C. The microcapsule particle size is controlled at 5-10μm, ensuring uniform dispersion within the fiber without affecting the fabric's feel or breathability.

[0061] Please see the attached Figure 1 A method for producing a novel antistatic and breathable wool worsted shirt fabric is provided, which is applied to the aforementioned novel antistatic and breathable wool worsted shirt fabric and comprises the following steps:

[0062] S1. Pretreatment: treating wool fibers with scale enzymes, degumming hemp fibers and optimizing their groove structures, preparing graphene-modified polyester fibers, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fibers, sulfonate-betaine-modified nylon fibers, silver zeolite composite particles, phase-change temperature-regulating microcapsules, and preparing aerogel nylon fibers; S1 specifically includes the following steps:

[0063] Wool fiber scale enzyme treatment: The wool fiber was pre-washed in acetic acid-sodium acetate buffer at 40°C and pH = 5.5 for 10 minutes, and 2% owf composite protease was added. The wool fiber was shaken at 50°C for 30 minutes, and the scale removal rate was controlled to 40%. After rinsing with deionized water three times, the wool fiber was dried at 60°C. The bath ratio of acetic acid-sodium acetate buffer was 1:20, and the composite protease contained 5000U / g of keratinase.

[0064] Hemp fiber degumming and groove optimization: the hemp raw hemp was chemically degummed with 5% NaOH solution, and then biologically degummed by adding 1% owf cellulase. 2 The carding machine was used for three passes to obtain 18-count fiber with a groove depth of 3-5 μm on the fiber surface. The bath ratio of chemical degumming was 1:20, scouring was performed at 95°C for 60 min, the pH of cellulase was 6.5, the temperature of biological degumming was 50°C, and the treatment time was 45 min.

[0065] Preparation of graphene-modified polyester fibers: Graphene was ultrasonically dispersed in DMF solvent, 0.5% silane coupling agent KH-550 was added, and the mixture was blended with PET chips at a ratio of 98.8:1.2. The fibers were melt-spun at 280°C to produce fibers with a graphene content of 0.8-1.2% and a graphene monolayer ratio of ≥95%. The concentration of the DMF solvent was 1.5%.

[0066] Preparation of carbon nanotube-modified wool: Multi-walled carbon nanotubes were treated with mixed acid and then dispersed in an aqueous solution containing 0.3% PVP. The wool fibers were ultrasonically treated at 50°C for 30 minutes to achieve a carbon nanotube loading of 0.5-1%. The diameter of the multi-walled carbon nanotubes was 10-20 nm, and the concentration of the aqueous solution was 0.5-1%.

[0067] Preparation of chitosan quaternary ammonium salt viscose fiber: chitosan and 3-chloro-2-hydroxypropyltrimethylammonium chloride were reacted at 60°C for 4 hours to obtain chitosan quaternary ammonium salt with a degree of substitution ≥ 90%, which was then mixed into viscose stock solution at a ratio of 5% for wet spinning. The molar ratio of chitosan to 3-chloro-2-hydroxypropyltrimethylammonium chloride was 1:1.2.

[0068] Preparation of sulfobetaine-modified nylon: nylon fiber was immersed in a grafting solution containing sodium 3-chloro-2-hydroxypropyl sulfonate and reacted at 60°C for 3 hours to obtain a grafting rate of 8-12% and a molecular structure of -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - For the modified fiber, the concentration of the grafting solution was 5% and the pH was 8.5;

[0069] Preparation of silver zeolite composite particles: Type A zeolite was ion exchanged with 0.1MAgNO3 solution for 48 hours and calcined at 500℃ for 2 hours to obtain particles with a diameter of 50-80nm and a silver ion release rate of 0.05-0.1μg / cm 2 / h of particles;

[0070] Preparation of phase-change temperature-regulating microcapsules: After capric acid / lauric acid are melted in a mass ratio of 1:1, they are encapsulated in a melamine-formaldehyde shell material using an in-situ polymerization method to obtain microcapsules with a melting point of 24-26°C and a particle size of 5-10 μm.

[0071] Specifically, wool fibers are treated with scale enzymes to reduce felt shrinkage and enhance skin-friendliness. Hemp fibers undergo a combination of chemical and biological degumming and groove etching to enhance breathability. In the preparation of functional fibers, conductive networks are constructed through graphene-polyester composites and carbon nanotube-modified wool. Chitosan quaternary ammonium salts are combined with viscose fibers to impart antibacterial properties, and sulfonated betaine-modified nylon enhances antistatic properties. Silver zeolite composite particles and phase-change temperature-regulating microcapsules are also prepared, along with aerogel nylon fibers. Strict control of pretreatment parameters for each raw material ensures optimal performance for subsequent processing.

[0072] Wool fiber scale enzyme treatment: Use acetic acid-sodium acetate buffer (pH=5.5) to simulate the isoelectric point environment of wool fibers, reduce the surface charge repulsion of the fibers, and make the composite protease easier to adsorb. Pre-washing at 40℃ for 10 minutes can remove surface grease impurities. 50℃ is the optimal temperature for keratinase activity. A 2% owf composite protease dosage and a 30-minute treatment time, combined with a 1:20 bath ratio, ensure that the scale removal rate is precisely controlled at 40%. If the treatment temperature is too high (>55℃) or the time is too long (>40min), the wool cortex will be damaged, resulting in a decrease in strength; if the dosage is insufficient (<1.5% owf), the anti-felting effect will be poor. Rinse with deionized water three times to thoroughly remove residual enzyme solution, and dry at a low temperature of 60℃ to avoid high temperature damage to the fiber structure.

[0073] Hemp fiber degumming and groove optimization: 5% NaOH solution is boiled at 95℃ for 60 minutes, with a bath ratio of 1:20, which can effectively dissolve hemp pectin and other colloids; 1% owf cellulase is treated at pH 6.5 and 50℃ for 45 minutes to further decompose hemicellulose and separate the fibers into 18-count fibers. The card cloth density is 80 teeth / cm 2 The carding machine combs 3 times, and forms 3-5μm deep grooves on the fiber surface through mechanical etching. The density and number of combing times can balance the groove depth and fiber damage. Too dense (>100 teeth / cm 2 ) can easily lead to fiber breakage, while being too shallow (<3μm) will affect moisture absorption and air permeability.

[0074] Preparation of graphene-modified polyester fiber: Graphene is ultrasonically dispersed in a 1.5% DMF solvent. 0.5% silane coupling agent KH-550 is added. Its amino groups react with graphene hydroxyl groups, and methoxy groups condense with PET hydroxyl groups, achieving covalent bonding between the graphene and PET. The PET melt-spinning temperature is 280°C, and a mixing ratio of 98.8:1.2 ensures a graphene content of 0.8-1.2%. Ultrasonic dispersion is performed for 30 minutes to achieve a graphene monolayer ratio of ≥95%, preventing agglomeration and decreased conductivity.

[0075] Preparation of carbon nanotube-modified wool: Multi-walled carbon nanotubes (10-20 nm) are treated with a mixed acid (concentrated sulfuric acid:concentrated nitric acid = 3:1) for 2 hours to carboxylate their surfaces, enhancing hydrophilicity and dispersibility. A 0.3% PVP dispersant and a 0.5-1% aqueous solution ensure uniform dispersion of the carbon nanotubes. The wool fibers are then ultrasonically treated at 50°C for 30 minutes, utilizing the ultrasonic cavitation effect to embed the carbon nanotubes between the wool scales. The loading is controlled at 0.5-1% to avoid excessive additions that could stiffen the fibers.

[0076] Preparation of chitosan quaternary ammonium salt viscose fiber: Chitosan and 3-chloro-2-hydroxypropyltrimethylammonium chloride are reacted in a 1:1.2 molar ratio at 60°C for 4 hours to achieve a quaternary degree of substitution of ≥90%. A 5% addition ratio is then mixed into the viscose stock solution and wet-spun to form uniform fibers. The reaction temperature and time are optimized to ensure sufficient grafting of the quaternary ammonium groups, enhancing antimicrobial properties.

[0077] Preparation of sulfobetaine-modified nylon: Nylon fibers are immersed in a 5% sodium 3-chloro-2-hydroxypropylsulfonate grafting solution at pH 8.5 and reacted at 60°C for 3 hours. The alkaline environment promotes nucleophilic substitution, and the grafting rate is controlled at 8-12%. This ratio balances antistatic properties with fiber mechanical properties. A higher ratio (>15%) can reduce fiber strength.

[0078] Preparation of silver zeolite composite particles: Type A zeolite is ion exchanged with a 0.1MAgNO3 solution for 48 hours and calcined at 500℃ for 2 hours to uniformly load silver ions into the zeolite pores, forming particles with a diameter of 50-80nm. The ion exchange time and calcination temperature are precisely controlled to achieve a silver ion release rate of 0.05-0.1μg / cm 2 / h, ensuring long-lasting antibacterial effect and avoiding skin irritation.

[0079] Preparation of phase-change thermoregulating microcapsules: Capric acid and lauric acid are melted in a 1:1 mass ratio and in situ polymerized into 5-10 μm microcapsules within a melamine-formaldehyde shell. The melting point is controlled at 24-26°C. The polymerization temperature is 70°C for 2 hours to ensure complete encapsulation of the shell, providing thermal buffering during body temperature fluctuations.

[0080] S2. Spinning: Pretreated wool fiber, hemp fiber, graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonated betaine-modified nylon, and aerogel nylon fiber are mixed according to weight, and silver zeolite composite particles are added. The fibers are mixed, carded, drawn, roved, and siro-spun in a multi-bin cotton mixer to obtain a blended yarn. In S2, the mixing time of the multi-bin cotton mixer is ≥15 min, the cylinder speed of the carding machine is 320-350 r / min, the doffer speed is 25-30 r / min, and the CV value of the obtained fiber strip is ≤5%. The spindle speed of the siro-spinning is 12000-15000 r / min, and the twist coefficient is 350-400.

[0081] Specifically, the pretreated fibers are weighed proportionally and fed into a multi-bin blender. Thorough mixing for 15 minutes or longer ensures that the silver zeolite composite particles are evenly dispersed among the fibers. During the carding process, the cylinder and doffer speeds are coordinated (320-350 rpm for the cylinder and 25-30 rpm for the doffer) to produce a high-quality cotton web with a CV value of ≤5%. After further optimizing fiber parallelism through drawing and roving, a sirospinning process is used at a spindle speed of 12,000-15,000 rpm and a twist coefficient of 350-400 to produce a blended yarn that combines strength, breathability, and uniform distribution of functional particles.

[0082] S3, weaving: the blended yarn is passed through a rapier loom to prepare a grey fabric, and the grey fabric is pretreated to obtain treated yarn; the rapier loom in S3 has an opening time of 280°, a back beam height of 80 mm, a warp tension of 1500-2000 N, and pretreatment includes desizing and scouring.

[0083] Specifically, during the weaving process, the rapier loom uses a 280° shedding angle, an 80mm backrest height, and a warp tension of 1500-2000N to ensure uniform warp tension, minimize end breaks, and produce smooth fabric. The fabric undergoes pre-treatment with desizing (2% NaOH solution at 90°C for 30 minutes) and scouring (0.5% detergent at 60°C for 40 minutes) to remove surface sizing and impurities, leaving the fiber surface clean and providing a good foundation for finishing.

[0084] S4, post-finishing: the treated yarn is sequentially subjected to antistatic treatment, antibacterial treatment, application of fluorine-free super-hydrophobic nano-coating, phase change temperature control function fixation, and soft setting treatment to obtain the finished fabric. The antistatic treatment in S4 is to use 1% owf dodecyl dimethyl benzyl ammonium chloride solution, two dips and two rolls, pre-bake at 80°C for 10 minutes and then bake at 120°C for 5 minutes. The antibacterial treatment is to immerse the treated yarn after antistatic treatment in a mixture of 0.5% owf silver zeolite dispersion and 1% owf chitosan quaternary ammonium salt solution, oscillate at 40°C for 30 minutes, and centrifuge at 2000r / min for 5 minutes and then dry at 60°C. The fluorine-free super-hydrophobic nano-coating is applied to immerse the treated yarn after antibacterial treatment in a coating liquid tank containing fluorine-free super-hydrophobic nano-coating, use a horizontal rolling mill for two dips and two rolls, pre-bake at 80°C for 5 minutes and then The yarn was baked at 150°C for 3 minutes to form a hydrophobic structure with a contact angle greater than 130°. The rolling rate of the two dips and two rolls was 60-70%. The phase change temperature regulation function was fixed by dispersing the phase change temperature regulation microcapsules in an aqueous solution containing 0.3% polyvinyl alcohol. The treated yarn after applying the fluorine-free super hydrophobic nano coating was dried at 80°C and baked at 100°C for 2 minutes after dipping and rolling. The concentration of the aqueous solution was 2% owf, and the rolling rate was 70%. The soft setting treatment was to fix the phase change temperature regulation function of the treated yarn, dip and roll it with a 2% owf silicone softener, dry it at 80°C, and then process it on a tenter setting machine at 160°C, a speed of 15m / min, and a width of 150cm.

[0085] Specifically, a 1% owf dodecyldimethylbenzyl ammonium chloride solution is attached to the yarn through a two-immersion and two-rolling process, and the antistatic agent is fixed by pre-baking and baking; then it is immersed in a mixture of silver zeolite and chitosan quaternary ammonium salt, and after oscillation treatment, it is centrifugally dehydrated and dried to achieve double antibacterial effect; the fluorine-free super hydrophobic nano coating is constructed on the fiber surface through a two-immersion and two-rolling, pre-baking-baking process; phase change temperature-regulating microcapsules are embedded in the fiber gaps with the help of immersion and rolling and heat treatment; finally, the fabric is treated with a silicone softener and stretched to give it a soft feel and stable size, and finally a wool worsted shirt fabric that is antistatic, breathable, antibacterial, waterproof and temperature-regulating is produced.

[0086] Antistatic treatment: 1% owf dodecyl dimethyl benzyl ammonium chloride solution, two dips and two rolls, with a roll-off rate of 60-70%, so that the antistatic agent is fully adsorbed on the fiber surface. Pre-bake at 80℃ for 10 minutes to remove most of the moisture, and bake at 120℃ for 5 minutes to fix the antistatic agent, and the surface resistivity is reduced to 10 8 -10 9 Ω / sq.

[0087] Antimicrobial treatment: A mixture of 0.5% owf silver zeolite dispersion and 1% owf chitosan quaternary ammonium salt was shaken at 40°C for 30 minutes to allow the silver ions and quaternary ammonium salt to synergistically kill bacteria. Excess solution was removed by centrifugation at 2000 rpm for 5 minutes, and the mixture was dried at 60°C to ensure stable adhesion of the antimicrobial components. The antibacterial rate against E. coli reached 98%.

[0088] Fluorine-free super-hydrophobic nano-coating is applied using a horizontal padder with two dips and two rolls, achieving a roll-off ratio of 60-70%, ensuring full penetration of the coating solution into the fiber. Pre-baking at 80°C for 5 minutes evaporates the solvent, followed by baking at 150°C for 3 minutes to promote cross-linking of the silane coupling agent, forming a nano-rough structure with a contact angle greater than 130°. The coating maintains its hydrophobic properties even after 50 washes.

[0089] Phase-change thermoregulation: 2% OWF phase-change thermoregulation microcapsules are dispersed in a 0.3% polyvinyl alcohol (PVA) aqueous solution, with a padding ratio of 70% to ensure uniform microcapsule loading. The solution is then dried at 80°C and baked at 100°C for 2 minutes to form a film of PVA that fixes the microcapsules and achieves thermoregulation.

[0090] Softening and shaping treatment: 2% owf silicone softener impregnation, drying at 80℃, and then stretching and shaping at 160℃ and 15m / min. The fabric width is adjusted to 150cm to give the fabric a soft feel and stable size, ensuring that the comprehensive performance of the finished product meets the standards.

[0091] The following is further introduced in conjunction with specific embodiments:

[0092] Example 1:

[0093] The invention discloses a novel antistatic and breathable worsted wool shirt fabric, comprising the following raw materials in parts by weight: 45-55 parts of wool fiber, 5-8 parts of graphene-modified polyester fiber, 1-2 parts of carbon nanotube-modified wool, 8-12 parts of hemp fiber, 3-5 parts of aerogel nylon fiber, 1-2 parts of silver zeolite composite particles, 10-15 parts of chitosan quaternary ammonium salt viscose fiber, 2-3% (owf) fluorine-free super-hydrophobic nano coating, 5-10 parts of sulfonated betaine-modified nylon, and 2-3 parts of phase change temperature-regulating microcapsules.

[0094] The diameter of the wool fiber is ≤19 μm, and after being treated with scale enzyme, the scale removal rate is 40%. The graphene content in the graphene-modified polyester fiber is 0.8-1.2%, and the carbon nanotube loading amount in the carbon nanotube-modified wool is 0.5-1%.

[0095] The hemp fiber is an 18-denier fiber after degumming, and the fiber surface has a groove structure with a depth of 3-5 μm. The porosity of the aerogel nylon fiber is 92%, and the particle size of the silver zeolite composite particles is 50-80 nm. The silver ion release rate is 0.05-0.1 μg / cm 2 / h, the substitution degree of chitosan quaternary ammonium salt viscose fiber is ≥90%.

[0096] The fluorine-free super-hydrophobic nanocoating is composed of silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570, and is formulated into a coating liquid with a solid content of 2%. The weight ratio of silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570 is 60%:30%:10% respectively. The particle size of the silica nanoparticles is 10-20nm, and the molecular weight of polydimethylsiloxane is 5000-10000.

[0097] The grafting rate of sulfobetaine modified nylon is 8-12%, and its molecular structure is -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The melting point of phase change temperature regulating microcapsules is 24-26℃.

[0098] A method for producing a novel antistatic and breathable wool worsted shirt fabric is applied to the aforementioned novel antistatic and breathable wool worsted shirt fabric, comprising the following steps:

[0099] S1. Pretreatment: Scale enzyme treatment of wool fiber, degumming and groove structure optimization of hemp fiber, preparation of graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonate betaine-modified nylon, silver zeolite composite particles, phase change temperature-regulating microcapsules, and preparation of aerogel nylon fiber;

[0100] S2. Spinning: Pretreated wool fiber, hemp fiber, graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonated betaine-modified nylon, and aerogel nylon fiber are mixed according to weight, and silver zeolite composite particles are added. The mixture is blended in a multi-bin blending machine, carded, drawn, roved, and siro-spun to produce a blended yarn.

[0101] S3, weaving: preparing grey fabric from the blended yarn through a rapier loom, and pre-treating the grey fabric to obtain treated yarn;

[0102] S4. Finishing: The treated yarn is sequentially subjected to antistatic treatment, antibacterial treatment, application of fluorine-free super-hydrophobic nano-coating, phase change temperature regulation function fixation, and soft shaping treatment to obtain the finished fabric.

[0103] S1 specifically includes the following steps:

[0104] Wool fiber scale enzyme treatment: The wool fiber was pre-washed in acetic acid-sodium acetate buffer at 40°C and pH = 5.5 for 10 minutes, and 2% owf composite protease was added. The wool fiber was shaken at 50°C for 30 minutes, and the scale removal rate was controlled to 40%. After rinsing with deionized water three times, the wool fiber was dried at 60°C. The bath ratio of acetic acid-sodium acetate buffer was 1:20, and the composite protease contained 5000U / g of keratinase.

[0105] Hemp fiber degumming and groove optimization: the hemp raw hemp was chemically degummed with 5% NaOH solution, and then biologically degummed by adding 1% owf cellulase. 2 The carding machine was used for three passes to obtain 18-count fiber with a groove depth of 3-5 μm on the fiber surface. The bath ratio of chemical degumming was 1:20, scouring was performed at 95°C for 60 min, the pH of cellulase was 6.5, the temperature of biological degumming was 50°C, and the treatment time was 45 min.

[0106] Preparation of graphene-modified polyester fibers: Graphene was ultrasonically dispersed in DMF solvent, 0.5% silane coupling agent KH-550 was added, and the mixture was blended with PET chips at a ratio of 98.8:1.2. The fibers were melt-spun at 280°C to produce fibers with a graphene content of 0.8-1.2% and a graphene monolayer ratio of ≥95%. The concentration of the DMF solvent was 1.5%.

[0107] Preparation of carbon nanotube-modified wool: Multi-walled carbon nanotubes were treated with mixed acid and then dispersed in an aqueous solution containing 0.3% PVP. The wool fibers were ultrasonically treated at 50°C for 30 minutes to achieve a carbon nanotube loading of 0.5-1%. The diameter of the multi-walled carbon nanotubes was 10-20 nm, and the concentration of the aqueous solution was 0.5-1%.

[0108] Preparation of chitosan quaternary ammonium salt viscose fiber: chitosan and 3-chloro-2-hydroxypropyltrimethylammonium chloride were reacted at 60°C for 4 hours to obtain chitosan quaternary ammonium salt with a degree of substitution ≥ 90%, which was then mixed into viscose stock solution at a ratio of 5% for wet spinning. The molar ratio of chitosan to 3-chloro-2-hydroxypropyltrimethylammonium chloride was 1:1.2.

[0109] Preparation of sulfobetaine-modified nylon: nylon fiber was immersed in a grafting solution containing sodium 3-chloro-2-hydroxypropyl sulfonate and reacted at 60°C for 3 hours to obtain a grafting rate of 8-12% and a molecular structure of -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - For the modified fiber, the concentration of the grafting solution was 5% and the pH was 8.5;

[0110] Preparation of silver zeolite composite particles: Type A zeolite was ion exchanged with 0.1MAgNO3 solution for 48 hours and calcined at 500℃ for 2 hours to obtain particles with a diameter of 50-80nm and a silver ion release rate of 0.05-0.1μg / cm 2 / h of particles;

[0111] Preparation of phase-change temperature-regulating microcapsules: After capric acid / lauric acid are melted in a mass ratio of 1:1, they are encapsulated in a melamine-formaldehyde shell material using an in-situ polymerization method to obtain microcapsules with a melting point of 24-26°C and a particle size of 5-10 μm.

[0112] The mixing time of the multi-bin cotton mixer in S2 is ≥15min, the cylinder speed of the carding machine is 320-350r / min, the doffer speed is 25-30r / min, and the CV value of the fiber strip is ≤5%. The spindle speed of siro spinning is 12000-15000r / min, and the twist coefficient is 350-400.

[0113] The opening time of the rapier loom in S3 is 280°, the back beam height is 80mm, the warp tension is 1500-2000N, and the pretreatment includes desizing and scouring.

[0114] In S4, the antistatic treatment is to use 1% owf dodecyldimethylbenzyl ammonium chloride solution, two dips and two rolls, pre-bake at 80℃ for 10min and then bake at 120℃ for 5min. The antibacterial treatment is to immerse the treated yarn after antistatic treatment in a mixture of 0.5% owf silver zeolite dispersion and 1% owf chitosan quaternary ammonium salt solution, oscillate at 40℃ for 30min, and centrifuge at 2000r / min for 5min and then dry at 60℃. The fluorine-free super-hydrophobic nano coating is applied to immerse the treated yarn after antibacterial treatment in a coating liquid tank containing the fluorine-free super-hydrophobic nano coating, use a horizontal padder for two dips and two rolls, pre-bake at 80℃ for 5min and then bake at 120℃ for 5min. The yarn was baked at 150°C for 3 minutes to form a hydrophobic structure with a contact angle greater than 130°. The rolling rate of the two dips and two rolls was 60-70%. The phase change temperature regulation function was fixed by dispersing the phase change temperature regulation microcapsules in an aqueous solution containing 0.3% polyvinyl alcohol. The treated yarn after applying the fluorine-free super hydrophobic nano coating was dried at 80°C and baked at 100°C for 2 minutes after dipping and rolling. The concentration of the aqueous solution was 2% owf, and the rolling rate was 70%. The soft setting treatment was to fix the phase change temperature regulation function of the treated yarn, dip and roll it with a 2% owf silicone softener, dry it at 80°C, and then process it on a tenter setting machine at 160°C, a speed of 15m / min, and a width of 150cm.

[0115] Example 2:

[0116] This embodiment differs from the above-mentioned embodiment 1 in that:

[0117] The new antistatic and breathable wool worsted shirt fabric includes the following raw materials in parts by weight: 45 parts of wool fiber, 5 parts of graphene-modified polyester fiber, 1 part of carbon nanotube-modified wool, 8 parts of hemp fiber, 3 parts of aerogel nylon fiber, 1 part of silver zeolite composite particles, 10 parts of chitosan quaternary ammonium salt viscose fiber, 2% fluorine-free super-hydrophobic nano coating (owf), 5 parts of sulfonic acid betaine-modified nylon, and 2-3 parts of phase change temperature-regulating microcapsules.

[0118] Example 3:

[0119] This embodiment differs from the above-mentioned embodiment 1 in that:

[0120] The new antistatic and breathable wool worsted shirt fabric includes the following raw materials in parts by weight: 50 parts of wool fiber, 6.5 parts of graphene-modified polyester fiber, 1.5 parts of carbon nanotube-modified wool, 10 parts of hemp fiber, 4 parts of aerogel nylon fiber, 1.5 parts of silver zeolite composite particles, 12.5 parts of chitosan quaternary ammonium salt viscose fiber, 2.5% fluorine-free super-hydrophobic nano coating (owf), 7.5 parts of sulfonic acid betaine-modified nylon, and 2.5 parts of phase change temperature-regulating microcapsules.

[0121] Table 1:

[0122] contrast Example 1 Example 2 Example 3 Standard value Surface resistivity (Ω / sq) <![CDATA[1.2×10 8 ]]> <![CDATA[1.8×10 8 ]]> <![CDATA[1.5×10 8 ]]> <![CDATA[>10 12 ]]> Water absorption (%) 28 26 27 20 <![CDATA[Evaporation rate (g / m 2 ·h)]]> 16 15 15.5 10 Escherichia coli inhibition rate (%) 98.5 98 98.2 60 Air permeability (mm / s) 28 25 26.5 15

[0123] The comparison in the above table is for traditional shirt fabrics. Table 1 shows that different contents of wool fiber, graphene-modified polyester fiber, carbon nanotube-modified wool, hemp fiber, aerogel nylon fiber, silver zeolite composite particles, chitosan quaternary ammonium salt viscose fiber, fluorine-free super-hydrophobic nano-coating, sulfonic acid betaine-modified nylon, and phase change temperature-regulating microcapsules can affect the surface resistivity, water absorption rate, evaporation rate, Escherichia coli antibacterial rate, and air permeability of the shirt fabric, thereby affecting the antistatic, moisture absorption and quick-drying, antibacterial, breathable and temperature-regulating functions of the fabric, realizing multi-functional integration and solving the problem that the antistatic treatment of traditional wool worsted shirt fabrics mainly relies on post-finishing technology, resulting in poor durability.

[0124] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of antistatic and breathable worsted wool shirt fabric, characterized by: The invention comprises the following raw materials in parts by weight: 45-55 parts of wool fiber, 5-8 parts of graphene-modified polyester fiber, 1-2 parts of carbon nanotube-modified wool, 8-12 parts of hemp fiber, 3-5 parts of aerogel nylon fiber, 1-2 parts of silver zeolite composite particles, 10-15 parts of chitosan quaternary ammonium salt viscose fiber, 2-3% (owf) fluorine-free super-hydrophobic nano coating, 5-10 parts of sulfonated betaine-modified nylon, and 2-3 parts of phase change temperature regulating microcapsules.

2. The novel antistatic and breathable worsted wool shirt fabric according to claim 1, characterized in that: The wool fiber has a diameter of ≤19 μm, and after being treated with scale enzyme, the scale removal rate is 40%. The graphene content in the graphene-modified polyester fiber is 0.8-1.2%, and the carbon nanotube loading in the carbon nanotube-modified wool is 0.5-1%.

3. The novel antistatic and breathable worsted wool shirt fabric according to claim 1, characterized in that: The hemp fiber is an 18-denier fiber after degumming, and the fiber surface has a groove structure with a depth of 3-5 μm. The porosity of the aerogel nylon fiber is 92%, and the particle size of the silver zeolite composite particles is 50-80 nm. The silver ion release rate is 0.05-0.1 μg / cm 2 / h, the substitution degree of the chitosan quaternary ammonium salt viscose fiber is ≥90%.

4. The novel antistatic and breathable worsted wool shirt fabric according to claim 1, characterized in that: The fluorine-free super-hydrophobic nano-coating is prepared from silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570 to form a coating liquid with a solid content of 2%. The weight ratio of the silica nanoparticles, polydimethylsiloxane and silane coupling agent KH-570 is 60%:30%:10% respectively. The particle size of the silica nanoparticles is 10-20nm, and the molecular weight of the polydimethylsiloxane is 5000-10000.

5. The novel antistatic and breathable worsted wool shirt fabric according to claim 1, characterized in that: The grafting rate of the sulfonated betaine modified nylon is 8-12%, and its molecular structure is -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The melting point of the phase-change temperature-regulating microcapsules is 24-26°C.

6. A method for producing a novel antistatic and breathable wool worsted shirt fabric, characterized by: The novel antistatic and breathable worsted wool shirt fabric according to any one of claims 1 to 5 comprises the following steps: S1. Pretreatment: Scale enzyme treatment of wool fiber, degumming and groove structure optimization of hemp fiber, preparation of graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonate betaine-modified nylon, silver zeolite composite particles, phase change temperature-regulating microcapsules, and preparation of aerogel nylon fiber; S2. Spinning: Pretreated wool fiber, hemp fiber, graphene-modified polyester fiber, carbon nanotube-modified wool, chitosan quaternary ammonium salt viscose fiber, sulfonated betaine-modified nylon, and aerogel nylon fiber are mixed according to weight, and silver zeolite composite particles are added. The mixture is blended in a multi-bin blending machine, carded, drawn, roved, and siro-spun to produce a blended yarn. S3, weaving: preparing grey fabric from the blended yarn through a rapier loom, and pre-treating the grey fabric to obtain treated yarn; S4. Finishing: The treated yarn is sequentially subjected to antistatic treatment, antibacterial treatment, application of fluorine-free super-hydrophobic nano-coating, phase change temperature regulation function fixation, and soft shaping treatment to obtain the finished fabric.

7. The method for producing the novel antistatic and breathable worsted wool shirt fabric according to claim 6, characterized in that: The S1 specifically includes the following steps: Wool fiber scale enzyme treatment: The wool fiber was pre-washed in acetic acid-sodium acetate buffer at 40°C and pH = 5.5 for 10 minutes, and 2% owf composite protease was added. The wool fiber was shaken at 50°C for 30 minutes, and the scale removal rate was controlled to 40%. The wool fiber was rinsed with deionized water three times and then dried at 60°C. The bath ratio of the acetic acid-sodium acetate buffer was 1:20, and the composite protease contained 5000U / g of keratinase. Hemp fiber degumming and groove optimization: the hemp raw hemp was chemically degummed with 5% NaOH solution, and then biologically degummed by adding 1% owf cellulase. 2 The carding machine was used for three passes to obtain 18-count fiber with a groove depth of 3-5 μm on the fiber surface. The bath ratio of the chemical degumming was 1:20, scouring was performed at 95°C for 60 minutes, the pH value of the cellulase was 6.5, the temperature of the biological degumming was 50°C, and the treatment time was 45 minutes. Preparation of graphene-modified polyester fibers: Graphene was ultrasonically dispersed in DMF solvent, 0.5% silane coupling agent KH-550 was added, and the mixture was blended with PET chips at a ratio of 98.8:1.

2. The fibers were melt-spun at 280°C to produce fibers with a graphene content of 0.8-1.2%, with a graphene monolayer ratio of ≥95%. The concentration of the DMF solvent was 1.5%. Preparation of carbon nanotube-modified wool: Multi-walled carbon nanotubes are treated with mixed acid and then dispersed in an aqueous solution containing 0.3% PVP. The wool fibers are ultrasonically treated at 50°C for 30 minutes to increase the carbon nanotube loading to 0.5-1%. The diameter of the multi-walled carbon nanotubes is 10-20 nm, and the concentration of the aqueous solution is 0.5-1%. Preparation of chitosan quaternary ammonium salt viscose fiber: chitosan and 3-chloro-2-hydroxypropyltrimethylammonium chloride were reacted at 60°C for 4 hours to obtain chitosan quaternary ammonium salt with a degree of substitution of ≥90%, which was then mixed into viscose stock solution at a ratio of 5% for wet spinning. The molar ratio of chitosan to 3-chloro-2-hydroxypropyltrimethylammonium chloride was 1:1.

2. Preparation of sulfobetaine-modified nylon: nylon fiber was immersed in a grafting solution containing sodium 3-chloro-2-hydroxypropyl sulfonate and reacted at 60°C for 3 hours to obtain a grafting rate of 8-12% and a molecular structure of -N + (CH3)2(CH2CH2OH)-CH2CH2SO3 - The modified fiber, the concentration of the grafting solution is 5%, and the pH is 8.5; Preparation of silver zeolite composite particles: Type A zeolite was ion exchanged with 0.1MAgNO3 solution for 48 hours and calcined at 500℃ for 2 hours to obtain particles with a diameter of 50-80nm and a silver ion release rate of 0.05-0.1μg / cm 2 / h of particles; Preparation of phase-change temperature-regulating microcapsules: After capric acid / lauric acid are melted in a mass ratio of 1:1, they are encapsulated in a melamine-formaldehyde shell material using an in-situ polymerization method to obtain microcapsules with a melting point of 24-26°C and a particle size of 5-10 μm.

8. The method for producing the novel antistatic and breathable worsted wool shirt fabric according to claim 6, characterized in that: The mixing time of the multi-bin cotton mixer in S2 is ≥15 min, the cylinder speed of the carding machine is 320-350 r / min, the doffer speed is 25-30 r / min, and the CV value of the obtained fiber strip is ≤5%. The spindle speed of the siro spinning is 12000-15000 r / min, and the twist coefficient is 350-400.

9. The method for producing the novel antistatic and breathable worsted wool shirt fabric according to claim 6, characterized in that: The opening time of the rapier loom in S3 is 280°, the back beam height is 80 mm, the warp tension is 1500-2000 N, and the pretreatment includes desizing and scouring.

10. The method for producing the novel antistatic and breathable worsted wool shirt fabric according to claim 6, characterized in that: The antistatic treatment in S4 is to use 1% owf dodecyldimethylbenzyl ammonium chloride solution, two dips and two rolls, pre-bake at 80°C for 10 minutes and then bake at 120°C for 5 minutes. The antibacterial treatment is to immerse the treated yarn after antistatic treatment in a mixture of 0.5% owf silver zeolite dispersion and 1% owf chitosan quaternary ammonium salt solution, oscillate at 40°C for 30 minutes, and centrifuge at 2000r / min for 5 minutes and then dry at 60°C. The application of fluorine-free super-hydrophobic nano-coating is to immerse the treated yarn after antibacterial treatment in a coating tank containing fluorine-free super-hydrophobic nano-coating, use a horizontal padder for two dips and two rolls, pre-bake at 80°C for 5 minutes and then bake at 15 The yarn was baked at 0°C for 3 minutes to form a hydrophobic structure with a contact angle of more than 130°. The rolling rate of the two dipping and two rolling was 60-70%. The phase change temperature regulation function was fixed by dispersing the phase change temperature regulation microcapsules in an aqueous solution containing 0.3% polyvinyl alcohol. The treated yarn after applying the fluorine-free super-hydrophobic nano coating was dried at 80°C and baked at 100°C for 2 minutes after dipping. The concentration of the aqueous solution was 2% owf. The rolling rate was 70%. The soft setting treatment was to fix the phase change temperature regulation function, dip the treated yarn with a 2% owf silicone softener, dry it at 80°C, and then process it on a tenter setting machine at 160°C, a speed of 15m / min, and a width of 150cm.

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