Highly breathable and wear-resistant functional textile fabric and preparation method thereof

Abstract

This invention discloses a highly breathable and abrasion-resistant functional textile fabric. The fabric has a three-layer composite structure, consisting of a surface abrasion-resistant layer, a core breathable layer, and a bottom support layer, from the outside to the inside. A method for preparing this highly breathable and abrasion-resistant functional textile fabric includes the following steps: raw material pretreatment, weaving of each layer, functional finishing of each layer, finishing of the core breathable layer, composite molding, and post-finishing. The textile fabric of this invention employs a three-layer composite structure. The surface abrasion-resistant layer is a blend of modified polyester and aramid fibers, coated with an abrasion-resistant finishing agent to significantly improve abrasion resistance. The core breathable layer uses a diamond-shaped mesh structure, treated with breathability modification to maximize breathability. The bottom support layer is a blend of cotton and bamboo fibers, treated with a soft and breathable finish to improve comfort and breathability. The three layers are connected by a dotted composite method to ensure unobstructed airflow channels, achieving a synergistic improvement in both high breathability and high abrasion resistance.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, specifically relating to a highly breathable and wear-resistant functional textile fabric and its preparation method, which is suitable for various scenarios such as sportswear, outdoor equipment, and home decoration, and is especially suitable for application scenarios with high requirements for breathability and wear resistance. Background Technology

[0002] As people's living standards continue to improve, the functional requirements for textiles are becoming increasingly stringent, especially breathability and abrasion resistance. The synergistic improvement of both has become a key focus of research and development in the textile industry. In applications such as sportswear, outdoor tents, and workwear fabrics, the fabrics not only need to possess good breathability to ensure comfort during wear and use, avoiding discomfort caused by stuffiness and sweating, but also need excellent abrasion resistance to cope with frequent friction and external wear, extending their service life.

[0003] Currently, existing textile fabrics often struggle to balance breathability and abrasion resistance: pursuing high breathability typically involves using loose fabric structures or thin fiber materials, resulting in a significant decrease in abrasion resistance, making the fabric prone to wear and pilling; pursuing high abrasion resistance often involves increasing fiber density or using high-strength fibers, leading to poor breathability and stuffiness during wear or use; in addition, some functional fabrics enhance individual properties by adding chemical finishing agents, but there are problems such as poor adhesion of finishing agents and significant performance degradation after washing, and multi-layered composite fabrics often suffer from blocked air pores due to unreasonable composite processes, further reducing breathability.

[0004] Therefore, developing a functional textile fabric that can simultaneously achieve high breathability, high abrasion resistance, and stable performance, as well as its preparation method, has become an urgent technical problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing textile fabrics, such as difficulty in achieving both breathability and abrasion resistance, and poor performance stability, and to provide a highly breathable and abrasion-resistant functional textile fabric and its preparation method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A highly breathable and abrasion-resistant functional textile fabric is disclosed. The textile fabric has a three-layer composite structure, which consists of a surface abrasion-resistant layer, a core breathable layer, and a bottom support layer from the outside to the inside. The three layers are interconnected and have breathable channels. The surface abrasion-resistant layer is made of modified polyester fiber and aramid fiber blended in a mass ratio of 7-8:2-3. The core breathable layer is formed by interlacing warp and weft yarns to form a diamond-shaped mesh structure. The surface of the surface abrasion-resistant layer is coated with an abrasion-resistant finishing agent to form an abrasion-resistant finishing layer. The three layers are connected by a dot-matrix composite method to form a dot-matrix composite layer. The bottom support layer is made of cotton fiber and bamboo fiber blended in a mass ratio of 5-6:4-5. The core breathable layer is treated with breathability modification, and the bottom support layer is treated with softness and breathability.

[0007] Furthermore, the modified polyester fiber is prepared by mixing polyester chips, nano-silica, and polytetrafluoroethylene micro powder in a mass ratio of 100:(3-5):(2-4), adding the mixture to a screw extruder for melt extrusion, and then cooling, stretching, and cutting to obtain modified polyester staple fiber. The nano-silica has a particle size of 50-100 nm, and the polytetrafluoroethylene micro powder has a particle size of 1-5 μm. By adding nano-silica and polytetrafluoroethylene micro powder, the wear resistance of polyester fiber can be significantly improved. At the same time, the porous structure of nano-silica can also help improve the air permeability of the fiber, achieving a synergistic improvement in wear resistance and air permeability.

[0008] Furthermore, the wear-resistant finishing agent is composed of the following raw materials in parts by weight: 18-22 parts of fluorocarbon resin, 8-10 parts of epoxy resin, 3-4 parts of silane coupling agent, 2-3 parts of nano-alumina, and 40-45 parts of solvent. The solvent is N,N-dimethylformamide and ethanol mixed in a volume ratio of 1:(2-3). Fluorocarbon resin has excellent weather resistance and wear resistance, epoxy resin can enhance the bonding force between the finishing agent and the fiber, silane coupling agent can improve the compatibility of each component, and nano-alumina further enhances the wear resistance. The wear-resistant finishing agent of this formula adheres firmly and has little performance degradation after washing.

[0009] Furthermore, the warp yarn of the core breathable layer is modified polyester filament, and the weft yarn is bamboo charcoal fiber filament. The interlacing density of the warp and weft yarns is (28-32) yarns / inch × (20-24) yarns / inch. The side length of the diamond mesh structure is 0.8-1.2 mm, and the diameter of the breathable channels is 0.3-0.5 mm. The diamond mesh structure can maximize the breathability while ensuring structural stability. The bamboo charcoal fiber filament also has moisture absorption and antibacterial functions, further enhancing the functionality of the fabric. The use of modified polyester filament for the warp yarn can ensure the wear resistance of the core breathable layer and prevent the diamond mesh structure from being easily worn and deformed.

[0010] Furthermore, the fabric has an air permeability of ≥1200mm / s, a Martindale abrasion resistance of ≥30,000 cycles, a tensile strength of ≥350N, a tear strength of ≥80N, and after 50 washes, an air permeability retention rate of ≥85% and an abrasion resistance retention rate of ≥88%. All performance indicators are superior to existing similar products and can meet the needs of high-requirement application scenarios.

[0011] A method for preparing a highly breathable and abrasion-resistant functional textile fabric includes the following steps: Step S1, Raw material pretreatment: Select the fiber raw materials required for preparing the surface wear-resistant layer, core breathable layer and bottom support layer respectively, and perform impurity removal and loosening treatment on various fibers to remove impurities and knots in the fibers and ensure fiber uniformity. Mix the modified polyester fiber and aramid fiber evenly to make the spinning raw material for the surface wear-resistant layer. Wind the modified polyester filament and bamboo charcoal fiber filament separately to remove the broken ends and impurities in the yarn and improve the strength and uniformity of the yarn to make the warp and weft yarn raw materials for the core breathable layer. Mix the cotton fiber and bamboo fiber evenly to make the spinning raw material for the bottom support layer. At the same time, prepare the wear-resistant finishing agent, breathable modifier and soft breathable finishing agent for later use.

[0012] Step S2, weaving each layer: S2.1, Surface abrasion-resistant layer weaving: The raw materials for the surface abrasion-resistant layer are processed into warp and weft yarns through opening, carding, drawing, roving, spinning and winding processes, and then woven using a plain weave process. The plain weave structure can ensure the flatness and abrasion resistance of the surface abrasion-resistant layer. The weaving speed is 280–320 r / min. After weaving, a pre-shrinking treatment is performed at a temperature of 80–90℃ and a pre-shrinking rate of 3–5% to avoid shrinkage and deformation of the fabric during subsequent processing. S2.2, Core breathable layer weaving: The warp and weft yarns treated with warp tubes are woven using a twill weave process, with the weave density controlled at (28-32) yarns / inch × (20-24) yarns / inch to form a diamond mesh structure. The twill weave process can improve the structural stability of the core breathable layer and prevent the mesh from being easily deformed. After weaving, a width-fixing process is performed at a temperature of 100-110℃ and a time of 2-3 minutes to fix the mesh size and ensure the stability of breathability. S2.3, Underlying Support Layer Weaving: The raw materials for the underlying support layer are processed through opening, carding, drawing, roving, spinning, and winding to produce warp and weft yarns. Plain weaving is then used at a speed of 260-300 r / min. After weaving, pre-shrinking is performed at a temperature of 75-85℃ with a pre-shrinking rate of 2-4%, which improves the softness and dimensional stability of the underlying support layer.

[0013] Step S3, Functional organization of each layer: S3.1, Surface abrasion-resistant layer finishing: The pre-shrunken surface abrasion-resistant layer is coated with an abrasion-resistant finishing agent by padding. The padding temperature is 40-50℃, and the roll-off rate is 75-85%, ensuring that the finishing agent is evenly adhered to the fiber surface. After coating, it is first pre-baked at 85-95℃ for 8-12 minutes, and then baked at 130-140℃ for 3-5 minutes. After cooling to room temperature, the finishing agent is cured and formed, which enhances the bonding force with the fiber. After cooling to room temperature. S3.2, Core Breathable Layer Finishing: The core breathable layer after width setting is immersed in a breathable modifier at a temperature of 50-60℃ for 30-40 minutes to allow the modifier to fully penetrate the fiber, improving its breathability and structural stability. After immersion, the layer is dehydrated to a rate of 60-70%, then dried at 105-115℃ for 15-20 minutes to remove moisture, and cooled to room temperature. The breathable modifier is a compound solution of zirconium metal salt and 2-amino-4,4'-biphenyl dicarboxylic acid at a concentration of 0.3-0.4 mol / L. This compound solution can form a porous structure on the fiber surface, further improving breathability and enhancing fiber strength. S3.3, Finishing of the bottom support layer: The pre-shrunken bottom support layer is treated with a soft and breathable finishing agent by padding at a temperature of 35-45℃ and a roll-off rate of 70-80%, so that the finishing agent is evenly attached to the fiber surface, improving the softness and breathability of the bottom support layer. After treatment, it is pre-dried at 80-90℃ for 6-10 minutes to remove excess solvent, and then baked at 120-130℃ for 2-4 minutes to cure the finishing agent, and then cooled to room temperature.

[0014] Step S4, Composite Molding: The functionally treated surface abrasion-resistant layer, core breathable layer, and bottom support layer are stacked sequentially, with the surface abrasion-resistant layer on the outermost layer and the bottom support layer on the innermost layer. A dot-matrix hot-pressing composite process is used for bonding. The hot-pressing temperature is 150-160℃, the hot-pressing pressure is 2.0-2.4MPa, and the hot-pressing time is 10-15s. The dot spacing is 8-12mm, and the dot diameter is 2-3mm. During the bonding process, ensure that the breathable channels of each layer are aligned and interconnected to avoid blockage. The dot-matrix bonding method also reduces the bonding area between layers, further ensuring the breathability of the fabric while maintaining composite strength and preventing delamination.

[0015] Step S5, finishing: The composite fabric undergoes washing, softening, width setting, pre-shrinking, and setting treatments. The washing temperature is 40-50℃, and the washing time is 10-15 minutes to remove residual finishing agents and impurities from the fabric surface. The softening treatment involves padding with a softener with a padding rate of 70-80% to improve the fabric's softness and enhance wearing or usage comfort. The width setting temperature is 110-120℃, and the width setting time is 3-5 minutes to fix the fabric width. The pre-shrinking temperature is 85-95℃, and the pre-shrinking rate is 2-3% to further improve the fabric's dimensional stability. The setting temperature is 130-140℃, and the setting time is 5-8 minutes to stabilize the fabric's performance. Finally, the fabric is cooled, cut, and inspected to obtain a highly breathable and abrasion-resistant functional textile fabric.

[0016] Further, in step S1, the preparation method of the breathable modifier is as follows: zirconium metal salt, 2-amino-4,4'-biphenyl dicarboxylic acid, water and organic solvent are mixed at a mass ratio of 1:4−4.2:0.8−1.2:(8-10), heated and reacted at 95-100℃ for 6-8 hours, filtered, washed and dried to obtain a zirconium metal composite material, and then the zirconium metal composite material is dissolved in water to prepare a breathable modifier with a concentration of 0.3-0.4 mol / L; the zirconium metal salt is zirconium chloride, the organic solvent is N,N-dimethylformamide, and washing is performed with ethanol. This preparation method is simple and cost-controllable, and the obtained breathable modifier can effectively improve the breathability and structural stability of the core breathable layer.

[0017] Further, in step S3, the soft and breathable finishing agent is composed of the following raw materials in parts by weight: 15-20 parts of cationic polyurethane emulsion, 5-8 parts of polyethylene glycol 6000, 3-5 parts of glycerin, and 70-80 parts of deionized water; the solid content of the cationic polyurethane emulsion is 30-40%. This finishing agent can improve the softness of the underlying support layer without affecting its breathability, and it is non-irritating to the skin, making it suitable for close-fitting use.

[0018] Furthermore, in step S4, the dot-matrix hot pressing composite is performed using an ultrasonic hot pressing device. During hot pressing, the device power is controlled at 800-1000W and the pressure head rotation speed is 15-20r / min. Ultrasonic hot pressing can achieve rapid composite, reduce damage to the fiber structure of each layer, ensure unobstructed air channels, and improve composite efficiency, making it suitable for mass production.

[0019] Furthermore, in step S5, after the shaping process, the fabric width error is ≤ ±0.5cm, the thickness is 0.8-1.2mm, and the weight is 180-220g / m², ensuring that the fabric specifications are uniform and meeting the needs of different application scenarios.

[0020] Compared with the prior art, the beneficial effects of this invention are as follows: 1. The textile fabric of the present invention adopts a three-layer composite structure. The surface abrasion-resistant layer is made of modified polyester fiber and aramid fiber blend and coated with abrasion-resistant finishing agent, which significantly improves the abrasion resistance of the fabric. The core breathable layer adopts a diamond mesh structure and is treated with breathability modification to maximize breathability. The bottom support layer is made of cotton fiber and bamboo fiber blend and is treated with soft and breathable finishing to improve comfort and auxiliary breathability. The three-layer structure is connected by a dot-matrix composite method to ensure that the breathable channels are connected, and achieves a synergistic improvement of high breathability and high abrasion resistance.

[0021] 2. The modified polyester fiber of this invention, by adding nano-silica and polytetrafluoroethylene micro powder, not only improves abrasion resistance but also enhances breathability. It also adheres firmly and exhibits minimal performance degradation after washing, ensuring the stability of the fabric for long-term use. The breathability modifier uses a compound system of zirconium metal salt and 2-amino-4,4'-biphenyldicarboxylic acid, which can form a porous structure on the fiber surface, further improving breathability and enhancing fiber strength.

[0022] 3. The preparation method of the present invention adopts a dot-shaped hot-pressing composite process, which avoids the blockage of the air pores and ensures the composite strength. The functional finishing process of each layer is highly targeted, which can give full play to the functional advantages of each layer. The resulting fabric has excellent performance indicators, with an air permeability of ≥1200mm / s, a Martindale abrasion resistance of ≥30,000 times, and is dimensionally stable, soft and comfortable, with a wide range of applications.

[0023] 4. The raw material cost of this invention is controllable, and no harmful pollutants are generated during the preparation process, which meets environmental protection requirements. The fabric not only has high breathability and high wear resistance, but also has auxiliary functions such as moisture absorption, antibacterial and softness, which can meet the needs of various scenarios such as sportswear, outdoor equipment and home decoration, and has high practical value and market prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a highly breathable and wear-resistant functional textile fabric proposed in this invention; Figure 2 This is a schematic diagram of the diamond mesh structure of a highly breathable and wear-resistant functional textile fabric proposed in this invention.

[0025] In the diagram: 1. Surface wear-resistant layer, 2. Core breathable layer, 3. Bottom support layer, 4. Breathable channels, 5. Diamond mesh structure, 6. Wear-resistant finishing layer, 7. Dotted composite layer. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0027] Refer to the instruction manual appendix Figure 1-2 A highly breathable and wear-resistant functional textile fabric is provided. The textile fabric has a three-layer composite structure. The three-layer composite structure consists of a surface wear-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 from the outside to the inside. The surface wear-resistant layer 1 is coated with a wear-resistant finishing agent to form a wear-resistant finishing layer 6. The three-layer composite structure is connected by a point-like composite method to form a point-like composite layer 7. The three-layer composite structure is interconnected and has breathable channels 4.

[0028] The surface wear-resistant layer 1 is made of modified polyester fiber and aramid fiber blended in a mass ratio of 7:3. The modified polyester fiber is prepared by mixing polyester chips, nano silica (particle size 50nm) and polytetrafluoroethylene micro powder (particle size 1μm) in a mass ratio of 100:3:2, adding them to a screw extruder for melt extrusion, and then cooling, stretching and cutting to obtain modified polyester staple fiber.

[0029] The wear-resistant finishing agent is composed of the following raw materials in parts by weight: 18 parts fluorocarbon resin, 8 parts epoxy resin, 3 parts silane coupling agent, 2 parts nano alumina, and 40 parts solvent; the solvent is N,N-dimethylformamide and ethanol mixed in a volume ratio of 1:2.

[0030] The core breathable layer 2 is formed by interlacing warp and weft yarns to form a diamond-shaped mesh structure 5. The warp yarns of the core breathable layer 2 are modified polyester filaments, and the weft yarns are bamboo charcoal fiber filaments. The interlacing density of the warp and weft yarns is 28 yarns / inch × 20 yarns / inch. The side length of the diamond-shaped mesh structure 5 is 0.8 mm, the diameter of the breathable pores is 0.3 mm, and the breathable modifier is a compound solution of zirconium metal salt and 2-amino-4,4'-biphenyl dicarboxylic acid with a concentration of 0.3 mol / L.

[0031] The bottom support layer 3 is made of cotton fiber and bamboo fiber blended in a mass ratio of 5:5. The soft and breathable finishing agent is composed of the following raw materials in parts by weight: 15 parts cationic polyurethane emulsion (solid content 30%), 5 parts polyethylene glycol 6000, 3 parts glycerin, and 70 parts deionized water.

[0032] The performance indicators of the textile fabric are as follows: air permeability 1200mm / s, Martindale abrasion resistance 30,000 cycles, breaking strength 350N, tear strength 80N, and after 50 washes, air permeability retention rate 85% and abrasion resistance retention rate 88%.

[0033] A method for preparing a highly breathable and abrasion-resistant functional textile fabric includes the following steps: Step S1, Raw material pretreatment: Modified polyester fiber, aramid fiber, modified polyester filament, bamboo charcoal fiber filament, cotton fiber, and bamboo fiber are selected respectively. All fibers are subjected to impurity removal and loosening treatment. The modified polyester fiber and aramid fiber are mixed evenly to form the spinning raw material for the surface abrasion-resistant layer 1. The modified polyester filament and bamboo charcoal fiber filament are wound separately to form the warp and weft yarn raw materials for the core breathable layer 2. The cotton fiber and bamboo fiber are mixed evenly to form the bottom support layer 3. Yarn raw materials were used to prepare abrasion-resistant finishing agents, breathable modifiers, and soft and breathable finishing agents for later use. The preparation method of the breathable modifier is as follows: zirconium chloride, 2-amino-4,4'-biphenyl dicarboxylic acid, water, and N,N-dimethylformamide were mixed in a mass ratio of 1:4:0.8:8, heated and reacted at 95°C for 6 hours, filtered, washed with ethanol, and dried to obtain a zirconium metal composite material. The zirconium metal composite material was then dissolved in water to prepare a breathable modifier with a concentration of 0.3 mol / L.

[0034] Step S2, weaving each layer: S2.1, Surface abrasion layer 1 weaving: The raw material for surface abrasion layer 1 is processed through opening, carding, drawing, roving, spinning, and winding to produce warp and weft yarns, and plain weaving is adopted at a weaving speed of 280 r / min. After weaving, pre-shrinking treatment is performed at a temperature of 80℃ and a pre-shrinking rate of 3%. S2.2, Core breathable layer 2 weaving: The warp and weft yarns treated with warp tubes are woven using a twill weave process, with the weave density controlled at 28 threads / inch × 20 threads / inch to form a diamond mesh structure 5. After weaving, the width is fixed at a temperature of 100℃ for 2 minutes. S2.3, Weaving of the bottom support layer 3: The raw material of the bottom support layer 3 is processed through opening, carding, drawing, roving, spinning and winding to make warp and weft yarns. Plain weaving process is used to weave the yarns at a speed of 260 r / min. After weaving, the yarns are pre-shrunk at a temperature of 75℃ and a pre-shrunk rate of 2%.

[0035] Step S3, Functional organization of each layer: S3.1, Finishing of surface wear-resistant layer 1: The pre-shrunken surface wear-resistant layer 1 is coated with wear-resistant finishing agent by dip-rolling. The dip-rolling temperature is 40℃ and the roll-out rate is 75%. After coating, it is first pre-baked at 85℃ for 8 minutes, then baked at 130℃ for 3 minutes, and then cooled to room temperature. S3.2, Core breathable layer finishing: The core breathable layer 2 after width setting is immersed in a breathable modifier at a temperature of 50°C for 30 minutes. After immersion, it is dehydrated with a dehydration rate of 60%. Then it is dried at 105°C for 15 minutes and cooled to room temperature. S3.3, Finishing of the bottom support layer 3: The pre-shrunken bottom support layer 3 is treated with a soft and breathable finishing agent by padding at a temperature of 35°C and a roll-off rate of 70%. After treatment, it is pre-dried at 80°C for 6 minutes and then baked at 120°C for 2 minutes, and then cooled to room temperature.

[0036] Step S4, Composite Molding: The functionally treated surface wear-resistant layer 1, core breathable layer 2, and bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 on the outermost layer and the bottom support layer 3 on the innermost layer. The composite is carried out using a dot-matrix hot-pressing composite process. The hot-pressing temperature is 150℃, the hot-pressing pressure is 2.0MPa, the hot-pressing time is 10s, the dot spacing is 8mm, the dot diameter is 2mm, the equipment power is 800W, and the pressure head speed is 15r / min. During the composite process, it is ensured that the breathable channels 4 of each layer are aligned and connected to each other.

[0037] Step S5, finishing: The composite fabric is washed, softened, width-set, pre-shrinked, and set. The washing temperature is 40℃ and the washing time is 10 minutes. The softening treatment is performed by padding with a softener with a padding rate of 70%. The width-setting temperature is 110℃ and the width-setting time is 3 minutes. The pre-shrinking temperature is 85℃ and the pre-shrinking rate is 2%. The setting temperature is 130℃ and the setting time is 5 minutes. Finally, after cooling, cutting, and inspection, a highly breathable and wear-resistant functional textile fabric is obtained. After setting, the fabric width error is ±0.5cm, the thickness is 0.8mm, and the weight is 180g / m². Example

[0038] Refer to the instruction manual appendix Figure 1-2 A highly breathable and wear-resistant functional textile fabric is provided. The textile fabric has a three-layer composite structure. The three-layer composite structure consists of a surface wear-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 from the outside to the inside. The surface wear-resistant layer 1 is coated with a wear-resistant finishing agent to form a wear-resistant finishing layer 6. The three-layer composite structure is connected by a point-like composite method to form a point-like composite layer 7. The three-layer composite structure is interconnected and has breathable channels 4.

[0039] The surface wear-resistant layer 1 is made of modified polyester fiber and aramid fiber blended in a mass ratio of 7.5:2.5. The modified polyester fiber is prepared by mixing polyester chips, nano silica (particle size 75nm) and polytetrafluoroethylene micro powder (particle size 3μm) in a mass ratio of 100:4:3, adding them to a screw extruder for melt extrusion, and then cooling, stretching and cutting to obtain modified polyester staple fiber.

[0040] The wear-resistant finishing agent is composed of the following raw materials in parts by weight: 20 parts fluorocarbon resin, 9 parts epoxy resin, 3.5 parts silane coupling agent, 2.5 parts nano alumina, and 42 parts solvent; the solvent is N,N-dimethylformamide and ethanol mixed in a volume ratio of 1:2.5.

[0041] The core breathable layer 2 is formed by interlacing warp and weft yarns to form a diamond-shaped mesh structure 5. The warp yarn of the core breathable layer 2 is modified polyester filament, and the weft yarn is bamboo charcoal fiber filament. The interlacing density of the warp and weft yarns is 30 yarns / inch × 22 yarns / inch. The side length of the diamond-shaped mesh structure 5 is 1.0 mm, the diameter of the breathable pores is 0.4 mm, and the breathable modifier is a compound solution of zirconium metal salt and 2-amino-4,4'-biphenyl dicarboxylic acid with a concentration of 0.35 mol / L.

[0042] The bottom support layer 3 is made of cotton fiber and bamboo fiber blended in a mass ratio of 5.5:4.5. The soft and breathable finishing agent is composed of the following raw materials in parts by weight: 18 parts cationic polyurethane emulsion (solid content 35%), 6.5 parts polyethylene glycol 6000, 4 parts glycerin, and 75 parts deionized water.

[0043] The performance indicators of the textile fabric are as follows: air permeability 1350mm / s, Martindale abrasion resistance 35,000 cycles, breaking strength 380N, tear strength 85N, and after 50 washes, air permeability retention rate 87% and abrasion resistance retention rate 90%.

[0044] A method for preparing a highly breathable and abrasion-resistant functional textile fabric includes the following steps: Step S1, Raw material pretreatment: Modified polyester fiber, aramid fiber, modified polyester filament, bamboo charcoal fiber filament, cotton fiber, and bamboo fiber are selected respectively. All fibers are subjected to impurity removal and loosening treatment. The modified polyester fiber and aramid fiber are mixed evenly to form the spinning raw material for the surface abrasion-resistant layer 1. The modified polyester filament and bamboo charcoal fiber filament are wound separately to form the warp and weft yarn raw materials for the core breathable layer 2. The cotton fiber and bamboo fiber are mixed evenly to form the spinning raw material for the bottom support layer 3. Materials were prepared to develop wear-resistant finishing agents, breathable modifiers, and soft breathable finishing agents for later use. The breathable modifier was prepared by mixing zirconium chloride, 2-amino-4,4'-biphenyl dicarboxylic acid, water, and N,N-dimethylformamide in a mass ratio of 1:4.1:1.0:9, heating the mixture at 98°C for 7 hours, filtering, washing with ethanol, and drying to obtain a zirconium metal composite material. The zirconium metal composite material was then dissolved in water to prepare a breathable modifier with a concentration of 0.35 mol / L.

[0045] Step S2, weaving each layer: S2.1, Surface abrasion layer 1 weaving: The raw material for surface abrasion layer 1 is processed through opening, carding, drawing, roving, spinning, and winding to produce warp and weft yarns. Plain weaving is then used at a weaving speed of 300 r / min. After weaving, pre-shrinking treatment is performed at a temperature of 85℃ with a pre-shrinking rate of 4%. S2.2, Core breathable layer 2 weaving: The warp and weft yarns treated with warp tubes are woven using a twill weave process, with the weave density controlled at 30 threads / inch × 22 threads / inch to form a diamond mesh structure 5. After weaving, the width is fixed at a temperature of 105℃ for 2.5 minutes. S2.3, Weaving of the bottom support layer 3: The raw material of the bottom support layer 3 is processed through opening, carding, drawing, roving, spinning and winding to make warp and weft yarns. Plain weaving process is used to weave the yarns at a speed of 280 r / min. After weaving, the yarns are pre-shrunk at a temperature of 80℃ and a pre-shrunk rate of 3%.

[0046] Step S3, Functional organization of each layer: S3.1, Finishing of surface wear-resistant layer 1: The pre-shrunken surface wear-resistant layer 1 is coated with wear-resistant finishing agent by dip-rolling. The dip-rolling temperature is 45℃ and the roll-off rate is 80%. After coating, it is first pre-baked at 90℃ for 10 minutes, then baked at 135℃ for 4 minutes, and then cooled to room temperature. S3.2, Core breathable layer finishing: The core breathable layer 2 after width setting is immersed in a breathable modifier at a temperature of 55℃ for 35 minutes. After immersion, it is dehydrated with a dehydration rate of 65%. Then it is dried at 110℃ for 18 minutes and cooled to room temperature. S3.3, Finishing of the bottom support layer 3: The pre-shrunken bottom support layer 3 is treated with a soft and breathable finishing agent by padding at a temperature of 40°C and a roll-off rate of 75%. After treatment, it is pre-dried at 85°C for 8 minutes and then baked at 125°C for 3 minutes, and then cooled to room temperature.

[0047] Step S4, Composite Molding: The functionally treated surface wear-resistant layer 1, core breathable layer 2, and bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 on the outermost layer and the bottom support layer 3 on the innermost layer. The composite is carried out using a dot-matrix hot-pressing composite process. The hot-pressing temperature is 155℃, the hot-pressing pressure is 2.2MPa, the hot-pressing time is 12s, the dot spacing is 10mm, the dot diameter is 2.5mm, the equipment power is 900W, and the pressure head speed is 18r / min. During the composite process, it is ensured that the breathable channels 4 of each layer are aligned and connected to each other.

[0048] Step S5, finishing: The composite fabric is washed, softened, width-set, pre-shrinked, and set. The washing temperature is 45℃ and the washing time is 12 minutes. The softening treatment is performed by padding with a softener with a padding rate of 75%. The width-setting temperature is 115℃ and the width-setting time is 4 minutes. The pre-shrinking temperature is 90℃ and the pre-shrinking rate is 2.5%. The setting temperature is 135℃ and the setting time is 6.5 minutes. Finally, after cooling, cutting, and inspection, a highly breathable and wear-resistant functional textile fabric is obtained. After setting, the fabric width error is ±0.4cm, the thickness is 1.0mm, and the weight is 200g / m². Example

[0049] Refer to the instruction manual appendix Figure 1-2 A highly breathable and wear-resistant functional textile fabric is provided. The textile fabric has a three-layer composite structure. The three-layer composite structure consists of a surface wear-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 from the outside to the inside. The surface wear-resistant layer 1 is coated with a wear-resistant finishing agent to form a wear-resistant finishing layer 6. The three-layer composite structure is connected by a point-like composite method to form a point-like composite layer 7. The three-layer composite structure is interconnected and has breathable channels 4.

[0050] The surface wear-resistant layer 1 is made of modified polyester fiber and aramid fiber blended at a mass ratio of 8:2. The modified polyester fiber is prepared by mixing polyester chips, nano silica (particle size 100nm), and polytetrafluoroethylene micro powder (particle size 5μm) at a mass ratio of 100:5:4, adding them to a screw extruder for melt extrusion, and then cooling, stretching, and cutting to obtain modified polyester staple fiber.

[0051] The wear-resistant finishing agent is composed of the following raw materials in parts by weight: 22 parts fluorocarbon resin, 10 parts epoxy resin, 4 parts silane coupling agent, 3 parts nano alumina, and 45 parts solvent; the solvent is N,N-dimethylformamide and ethanol mixed in a volume ratio of 1:3.

[0052] The core breathable layer 2 is formed by interlacing warp and weft yarns to form a diamond-shaped mesh structure 5. The warp yarns of the core breathable layer 2 are modified polyester filaments, and the weft yarns are bamboo charcoal fiber filaments. The interlacing density of the warp and weft yarns is 32 yarns / inch × 24 yarns / inch. The side length of the diamond-shaped mesh structure 5 is 1.2 mm, the diameter of the breathable pores is 0.5 mm, and the breathable modifier is a compound solution of zirconium metal salt and 2-amino-4,4'-biphenyl dicarboxylic acid with a concentration of 0.4 mol / L.

[0053] The bottom support layer 3 is made of cotton fiber and bamboo fiber blended in a mass ratio of 6:4. The soft and breathable finishing agent is composed of the following raw materials in parts by weight: 20 parts cationic polyurethane emulsion (solid content 40%), 8 parts polyethylene glycol 6000, 5 parts glycerin, and 80 parts deionized water.

[0054] The performance indicators of the textile fabric are as follows: air permeability 1500mm / s, Martindale abrasion resistance 40,000 cycles, breaking strength 400N, tear strength 90N, and after 50 washes, air permeability retention rate 89% and abrasion resistance retention rate 92%.

[0055] A method for preparing a highly breathable and abrasion-resistant functional textile fabric includes the following steps: Step S1, Raw material pretreatment: Modified polyester fiber, aramid fiber, modified polyester filament, bamboo charcoal fiber filament, cotton fiber, and bamboo fiber are selected respectively. All fibers are subjected to impurity removal and loosening treatment. The modified polyester fiber and aramid fiber are mixed evenly to form the spinning raw material for the surface abrasion-resistant layer 1. The modified polyester filament and bamboo charcoal fiber filament are wound separately to form the warp and weft yarn raw materials for the core breathable layer 2. The cotton fiber and bamboo fiber are mixed evenly to form the spinning raw material for the bottom support layer 3. Materials were prepared to develop wear-resistant finishing agents, breathable modifiers, and soft breathable finishing agents for later use. The breathable modifier was prepared by mixing zirconium chloride, 2-amino-4,4'-biphenyl dicarboxylic acid, water, and N,N-dimethylformamide in a mass ratio of 1:4.2:1.2:10, heating the mixture at 100°C for 8 hours, filtering, washing with ethanol, and drying to obtain a zirconium metal composite material. The zirconium metal composite material was then dissolved in water to prepare a breathable modifier with a concentration of 0.4 mol / L.

[0056] Step S2, weaving each layer: S2.1, Surface abrasion layer 1 weaving: The raw material for surface abrasion layer 1 is processed through opening, carding, drawing, roving, spinning, and winding to produce warp and weft yarns, and plain weaving is adopted at a weaving speed of 320 r / min. After weaving, pre-shrinking treatment is performed at a temperature of 90℃ and a pre-shrinking rate of 5%. S2.2, Core breathable layer 2 weaving: The warp and weft yarns treated with warp tubes are woven using a twill weave process, with the weave density controlled at 32 threads / inch × 24 threads / inch to form a diamond mesh structure 5. After weaving, the width is fixed at a temperature of 110℃ for 3.0 min. S2.3, Weaving of the bottom support layer 3: The raw material of the bottom support layer 3 is processed through opening, carding, drawing, roving, spinning and winding to make warp and weft yarns. Plain weaving process is used to weave the yarns at a speed of 300 r / min. After weaving, pre-shrinking treatment is performed at a temperature of 85℃ and a pre-shrinking rate of 4%.

[0057] Step S3, Functional organization of each layer: S3.1, Finishing of surface wear-resistant layer 1: The pre-shrunken surface wear-resistant layer 1 is coated with wear-resistant finishing agent by dip-rolling. The dip-rolling temperature is 50℃ and the roll-out rate is 85%. After coating, it is first pre-baked at 95℃ for 12 minutes, then baked at 140℃ for 5 minutes, and then cooled to room temperature. S3.2, Core breathable layer finishing: The core breathable layer 2 after width setting is immersed in a breathable modifier at a temperature of 60℃ for 40 minutes. After immersion, it is dehydrated with a dehydration rate of 70%. Then it is dried at 115℃ for 20 minutes and cooled to room temperature. S3.3, Finishing of the bottom support layer 3: The pre-shrunken bottom support layer 3 is treated with a soft and breathable finishing agent by padding at a temperature of 45°C and a roll-off rate of 80%. After treatment, it is pre-dried at 90°C for 10 minutes and then baked at 130°C for 4 minutes, and then cooled to room temperature.

[0058] Step S4, Composite Molding: The functionally treated surface wear-resistant layer 1, core breathable layer 2, and bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 on the outermost layer and the bottom support layer 3 on the innermost layer. The composite is carried out using a dot-matrix hot-pressing composite process. The hot-pressing temperature is 160℃, the hot-pressing pressure is 2.4MPa, the hot-pressing time is 15s, the dot spacing is 12mm, the dot diameter is 3.0mm, the equipment power is 1000W, and the pressure head speed is 20r / min. During the composite process, it is ensured that the breathable channels 4 of each layer are aligned and connected to each other.

[0059] Step S5, finishing: The composite fabric is washed, softened, width-set, pre-shrinked, and set. The washing temperature is 50℃ and the washing time is 15 minutes. The softening treatment is performed by padding with a softener with a padding rate of 80%. The width-setting temperature is 120℃ and the width-setting time is 5 minutes. The pre-shrinking temperature is 95℃ and the pre-shrinking rate is 3%. The setting temperature is 140℃ and the setting time is 8.0 minutes. Finally, after cooling, cutting, and inspection, a highly breathable and wear-resistant functional textile fabric is obtained. After setting, the fabric width error is ±0.3cm, the thickness is 1.2mm, and the weight is 220g / m².

[0060] Comparative experiment: The performance of the textile fabric of Example 2 of the present invention was compared with that of conventional breathable and abrasion-resistant fabrics (control group). The results are shown in the table below:

[0061] As can be seen from the above comparison results, the textile fabric of the present invention is significantly superior to the existing conventional breathable and abrasion-resistant fabrics in terms of various performance indicators such as air permeability, abrasion resistance, breaking strength, and tear strength. Moreover, it has a high performance retention rate and good stability after washing, and can effectively solve the technical problem that existing fabrics cannot achieve both breathability and abrasion resistance.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A highly breathable and wear-resistant functional textile fabric, characterized in that, The textile fabric has a three-layer composite structure. The three-layer composite structure consists of a surface abrasion-resistant layer (1), a core breathable layer (2), and a bottom support layer (3) from the outside to the inside. The three-layer composite structure is interconnected and has breathable channels (4). The surface abrasion-resistant layer (1) is made of modified polyester fiber and aramid fiber blended in a mass ratio of 7-8:2-3. The core breathable layer (2) is formed by interlacing warp and weft yarns to form a diamond mesh structure (5). The surface of the surface abrasion-resistant layer (1) is coated with an abrasion-resistant finishing agent to form an abrasion-resistant finishing layer (6). The three-layer composite structure is connected by a point-like composite method to form a point-like composite layer (7). The bottom support layer (3) is made of cotton fiber and bamboo fiber blended in a mass ratio of 5-6:4-5. The core breathable layer (2) is treated with breathability modification, and the bottom support layer (3) is treated with softness and breathability.

2. The highly breathable and abrasion-resistant functional textile fabric according to claim 1, characterized in that, The modified polyester fiber is prepared by mixing polyester chips, nano-silica, and polytetrafluoroethylene micro powder in a mass ratio of 100:(3-5):(2-4), adding the mixture to a screw extruder for melt extrusion, and then cooling, stretching, and cutting to obtain modified polyester staple fiber. The nano-silica has a particle size of 50-100 nm, and the polytetrafluoroethylene micro powder has a particle size of 1-5 μm.

3. The highly breathable and abrasion-resistant functional textile fabric according to claim 1, characterized in that, The wear-resistant finishing agent is composed of the following raw materials in parts by weight: 18-22 parts of fluorocarbon resin, 8-10 parts of epoxy resin, 3-4 parts of silane coupling agent, 2-3 parts of nano alumina, and 40-45 parts of solvent. The solvent is N,N-dimethylformamide and ethanol mixed in a volume ratio of 1:(2-3).

4. The highly breathable and abrasion-resistant functional textile fabric according to claim 1, characterized in that, The warp yarn of the core breathable layer (2) is modified polyester filament, the weft yarn is bamboo charcoal fiber filament, the interlacing density of the warp and weft yarns is (28-32) yarns / inch × (20-24) yarns / inch, the side length of the diamond mesh structure (5) is 0.8-1.2 mm, and the diameter of the breathable channel (4) is 0.3-0.5 mm.

5. The highly breathable and abrasion-resistant functional textile fabric according to claim 1, characterized in that, The textile fabric has an air permeability of ≥1200mm / s, a Martindale abrasion resistance of ≥30,000 cycles, a breaking strength of ≥350N, a tear strength of ≥80N, and after 50 washes, an air permeability retention rate of ≥85% and an abrasion resistance retention rate of ≥88%.

6. A method for preparing a highly breathable and abrasion-resistant functional textile fabric according to any one of claims 1-5, characterized in that, Includes the following steps: Step S1, raw material pretreatment: Select the fiber raw materials required for preparing the surface wear-resistant layer (1), the core breathable layer (2) and the bottom support layer (3), respectively, remove impurities and loosen the fibers, mix the modified polyester fiber and aramid fiber evenly to make the spinning raw material for the surface wear-resistant layer (1), wind the modified polyester filament and bamboo charcoal fiber filament separately to make the weft yarn raw material for the core breathable layer (2), mix the cotton fiber and bamboo fiber evenly to make the spinning raw material for the bottom support layer (3), and at the same time prepare the wear-resistant finishing agent, the breathable modifier and the soft breathable finishing agent for later use; Step S2, weaving each layer: S2.1, Surface abrasion layer (1) weaving: The spinning raw material of the surface abrasion layer (1) is made into warp and weft yarns through opening, carding, drawing, roving, spinning and winding processes, and then woven using plain weave technology at a weaving speed of 280–320 r / min. After weaving, a pre-shrinking treatment is performed at a temperature of 80–90℃ and a pre-shrinking rate of 3–5%. S2.2, Core breathable layer (2) weaving: The warp and weft yarns treated with the warp tube are woven using a twill weave process, and the weave density is controlled to be (28-32) threads / inch × (20-24) threads / inch to form a diamond mesh structure (5). After weaving, the width is fixed, the width is fixed at 100-110℃, and the width is fixed for 2-3 minutes. S2.3, weaving of the bottom support layer (3): the spinning raw material of the bottom support layer (3) is processed by opening, carding, drawing, roving, spinning and winding to make warp and weft yarns. Plain weaving process is adopted, the weaving speed is 260-300r / min, and the pre-shrinking treatment is carried out after weaving. The pre-shrinking temperature is 75-85℃ and the pre-shrinking rate is 2-4%. Step S3, Functional organization of each layer: S3.1, Finishing of surface wear-resistant layer (1): The pre-shrunken surface wear-resistant layer (1) is coated with wear-resistant finishing agent by dip-rolling. The dip-rolling temperature is 40-50℃ and the roll-off rate is 75-85%. After coating, it is pre-baked at 85-95℃ for 8-12 minutes and then baked at 130-140℃ for 3-5 minutes. Then it is cooled to room temperature. S3.2, Core breathable layer finishing: The core breathable layer (2) after width setting is immersed in a breathable modifier at a temperature of 50-60℃ for 30-40 minutes. After immersion, it is dehydrated with a dehydration rate of 60-70%. Then it is dried at 105-115℃ for 15-20 minutes and cooled to room temperature. The breathable modifier is a compound solution of zirconium metal salt and 2-amino-4,4'-biphenyl dicarboxylic acid with a concentration of 0.3-0.4 mol / L. S3.3, Finishing of the bottom support layer (3): The pre-shrunken bottom support layer (3) is treated with a soft and breathable finishing agent by padding. The padding temperature is 35-45℃ and the roll-off rate is 70-80%. After treatment, it is pre-dried at 80-90℃ for 6-10 minutes and then baked at 120-130℃ for 2-4 minutes. It is then cooled to room temperature. Step S4, Composite molding: The surface wear-resistant layer (1), core breathable layer (2), and bottom support layer (3) after functional finishing are stacked in sequence, with the surface wear-resistant layer (1) located on the outermost layer and the bottom support layer (3) located on the innermost layer. The composite is carried out by point hot pressing composite process. The hot pressing temperature is 150-160℃, the hot pressing pressure is 2.0-2.4MPa, the hot pressing time is 10-15s, the point spacing of point composite is 8-12mm, and the point diameter is 2-3mm. During the composite process, ensure that the breathable channels (4) of each layer are aligned and connected to each other. Step S5, finishing: The composite fabric is washed, softened, fixed in width, pre-shrinked, and set. The washing temperature is 40-50℃ and the washing time is 10-15 minutes. The softening treatment is carried out by padding with a softener with a padding rate of 70-80%. The width fixing temperature is 110-120℃ and the width fixing time is 3-5 minutes. The pre-shrinking temperature is 85-95℃ and the pre-shrinking rate is 2-3%. The setting temperature is 130-140℃ and the setting time is 5-8 minutes. Finally, after cooling, cutting, and inspection, a highly breathable and wear-resistant functional textile fabric is obtained.

7. The method for preparing a highly breathable and abrasion-resistant functional textile fabric according to claim 6, characterized in that, In step S1, the air-permeable modifier is prepared by mixing zirconium metal salt, 2-amino-4,4'-biphenyl dicarboxylic acid, water, and organic solvent in a mass ratio of 1:4−4.2:0.8−1.2:(8-10), heating and reacting at 95-100℃ for 6-8 hours, filtering, washing, and drying to obtain a zirconium metal composite material. The zirconium metal composite material is then dissolved in water to prepare an air-permeable modifier with a concentration of 0.3-0.4 mol / L. The zirconium metal salt is zirconium chloride, the organic solvent is N,N-dimethylformamide, and washing is performed using ethanol.

8. The method for preparing a highly breathable and abrasion-resistant functional textile fabric according to claim 6, characterized in that, In step S3, the soft and breathable finishing agent is composed of the following raw materials in parts by weight: 15-20 parts of cationic polyurethane emulsion, 5-8 parts of polyethylene glycol 6000, 3-5 parts of glycerin, and 70-80 parts of deionized water; the solid content of the cationic polyurethane emulsion is 30-40%.

9. The method for preparing a highly breathable and abrasion-resistant functional textile fabric according to claim 6, characterized in that, In step S4, the point-like hot pressing composite is performed using an ultrasonic hot pressing device. During hot pressing, the device power is controlled at 800-1000W and the pressure head rotation speed is 15-20r / min.

10. The method for preparing a highly breathable and abrasion-resistant functional textile fabric according to claim 6, characterized in that, In step S5, after the shaping process, the fabric width error is ≤ ±0.5cm, the thickness is 0.8-1.2mm, and the weight is 180-220g / m².

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