High-air-permeability textile fabric and production method thereof

Abstract

The invention discloses a high-air-permeability textile fabric and a production method thereof.The textile fabric comprises a surface wear-resisting layer, a core air-permeable layer and a bottom supporting layer which are sequentially connected in a composite mode, the core air-permeable layer is of a mesh structure formed by interweaving warp yarn and weft yarn, and rhombic air-permeable holes are formed between the warp yarn and the weft yarn; the surface wear-resistant layer and the bottom supporting layer are connected with the core breathable layer in a dotted composite mode, and through breathable channels corresponding to the rhombic breathable holes are formed in the surface wear-resistant layer and the bottom supporting layer; the production method comprises the following steps: S1, raw material pretreatment; S2, weaving of the core breathable layer; S3, preparation of the surface wear-resistant layer and the bottom supporting layer; S4, composite molding; by optimizing the fabric structure and the yarn material, the air permeability and the mechanical property are synergistically improved, meanwhile, the product performance stability is guaranteed by adopting a special production process, and the safety and comfort requirements of trampoline use are met.

Description

Technical Field

[0001] This invention relates to the field of sports textile technology, specifically to a highly breathable textile fabric and its production method. Background Technology

[0002] As a sporting activity that combines entertainment and competition, the core component of a trampoline is its elastic surface. The performance of this surface directly determines the user experience and safety of the trampoline. With the increasing awareness of fitness among the general public, trampoline sports are being used more and more widely in homes, gyms, and other settings. As a result, users are constantly raising their requirements for the performance of trampoline surfaces, with breathability being one of the key performance indicators.

[0003] During trampoline use, athletes experience frequent contact and friction with the surface, leading to poor air circulation in certain areas and the accumulation of heat and sweat. Traditional trampoline fabrics, to ensure structural strength and elastic recovery, typically employ high-density weaving with tightly packed warp and weft yarns. While this meets basic load-bearing requirements, it results in poor breathability. This not only causes athletes to feel stuffy and hot, affecting comfort and performance, but also can lead to a slippery surface due to sweat buildup, increasing the risk of injury. These problems are particularly pronounced in high-temperature environments or during prolonged exercise.

[0004] To improve the breathability of trampoline fabrics, several improvement schemes have emerged in existing technologies. For example, some schemes increase fabric porosity by reducing yarn diameter and warp and weft density. However, this approach leads to a significant decrease in key mechanical properties of the fabric, such as breaking strength and bursting strength, failing to meet the load-bearing requirements of the trampoline surface and drastically shortening its service life. Another approach uses irregularly shaped fibers to create breathable channels, such as Y-shaped or cross-shaped cross-section fibers. While this can improve breathability to some extent, optimizing a single fiber structure has limited effect on improving breathability and does not consider the compatibility of the overall fabric structure with the trampoline's motion characteristics. Under high-frequency impact, problems such as blocked breathable channels or structural deformation can easily occur.

[0005] Meanwhile, existing trampoline textile production processes mostly employ conventional integrated weaving and finishing processes, lacking specific process design for breathability optimization. For example, there is a lack of systematic design in fiber modification, weaving parameter control, and finishing treatments, resulting in textiles that fail to meet multiple performance requirements such as breathability, strength, and elastic recovery. Furthermore, some chemical finishing agents used in certain processes may remain on the fabric surface, affecting safety and making them particularly unsuitable for trampoline products used by children.

[0006] Furthermore, according to the relevant provisions of GB / T 32611-2016 "Functional and Safety Requirements and Test Methods for Gymnastics Trampolines," the elastic surface of a trampoline must possess characteristics such as wear resistance, aging resistance, and a stable elastic recovery rate. Existing breathable textiles, while pursuing improved breathability, often fail to meet the aforementioned safety standards, exhibiting performance shortcomings. Therefore, developing a trampoline textile that can balance high breathability, excellent mechanical properties, and safety stability, while also possessing a controllable production process, has become an urgent technical problem to be solved in the field of industrial textiles. Summary of the Invention

[0007] To address the problems of poor breathability, difficulty in balancing mechanical and breathability properties, and insufficient targeted production processes in existing trampoline textiles, this invention provides a highly breathable textile and its production method. This textile achieves a synergistic improvement in breathability and mechanical properties through optimized fabric structure and yarn materials. Simultaneously, a specialized production process ensures product performance stability, meeting the safety and comfort requirements for trampoline use.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A highly breathable textile fabric includes a surface abrasion-resistant layer, a core breathable layer, and a bottom support layer that are sequentially composited and connected. The core breathable layer is a mesh structure formed by the interlacing of warp and weft yarns, with diamond-shaped breathable holes formed between the warp and weft yarns. The surface abrasion-resistant layer and the bottom support layer are both connected to the core breathable layer through a dot-matrix composite method, and both the surface abrasion-resistant layer and the bottom support layer have through-breathable channels corresponding to the diamond-shaped breathable holes. The warp yarn is a composite fiber with a core-sheath structure, the core being polypropylene terephthalate fiber and the sheath being modified polypropylene fiber. The weft yarn is a polyester profiled fiber with a cross-shaped cross section, and the weft yarn surface has spiral ventilation grooves along the length direction. The surface wear-resistant layer is woven from a blend of high-strength polyester staple fiber and bamboo charcoal fiber, and the bottom support layer is woven from polypropylene filament and elastic spandex filament, with the warp and weft density of the bottom support layer being less than that of the core breathable layer.

[0009] Furthermore, in the core breathable layer, the warp density is 28-32 yarns / inch, the weft density is 18-22 yarns / inch, the side length of the diamond-shaped breathable holes is 3-5 mm, and the porosity is 35%-45%.

[0010] Furthermore, the core-sheath ratio of the warp yarn is 3:2, the diameter of the polypropylene terephthalate fiber in the core is 20-25 filaments, the thickness of the modified polypropylene fiber in the sheath is 5-8 filaments, and the twist of the warp yarn is 70-90 T / m.

[0011] Furthermore, the cross-shaped cross section of the weft yarn has an arm length of 15-20 filaments and an arm thickness of 3-5 filaments. The pitch of the spiral ventilation groove is 10-15mm, the groove width is 0.8-1.2mm, and the groove depth is 0.5-0.8mm.

[0012] Furthermore, in the surface wear-resistant layer, the blending ratio of high-strength polyester staple fiber to bamboo charcoal fiber is 7:3, the thickness of the surface wear-resistant layer is 0.3-0.5mm, the diameter of the through-ventilation channel is 2-3mm, and the distribution density of the through-ventilation channel is consistent with the distribution density of the diamond-shaped ventilation holes.

[0013] Furthermore, in the bottom support layer, the interlacing ratio of polypropylene filaments to elastic spandex filaments is 8:2, the thickness of the bottom support layer is 0.4-0.6mm, the warp density of the bottom support layer is 22-26 yarns / inch, and the weft density is 14-18 yarns / inch.

[0014] Furthermore, the composite points of the surface wear-resistant layer and the core breathable layer, and the bottom support layer and the core breathable layer are bonded with hot melt adhesive. The diameter of the composite points is 1-2 mm, the spacing between the composite points is 10-15 mm, and the composite points are distributed in an equilateral triangular array.

[0015] A method for producing a highly breathable textile fabric, used to prepare the highly breathable textile fabric described in any one of the above-mentioned methods, includes the following steps: S1. Raw material pretreatment: The warp yarn, weft yarn, surface abrasion-resistant layer raw material and bottom support layer raw material are pretreated respectively. The warp yarn raw material is pre-stretched and heat-set, the weft yarn raw material is plasma modified, and the surface abrasion-resistant layer raw material and bottom support layer raw material are loosely pre-washed. S2. Core breathable layer weaving: The pre-treated warp and weft yarns are interwoven using an air-jet loom. The loom parameters are adjusted to make the warp and weft yarn densities reach the preset values, forming a core breathable layer with diamond-shaped air pores. S3. Preparation of surface wear-resistant layer and bottom support layer: The blended surface wear-resistant layer raw material is woven into a fabric using a rapier loom. Through-breathable channels are opened on the woven fabric using a laser perforation machine to obtain the surface wear-resistant layer. Polypropylene filaments and elastic spandex filaments are interwoven using a water jet loom. Through-breathable channels are also opened using a laser perforation machine to obtain the bottom support layer. S4. Composite molding: The core breathable layer, the surface wear-resistant layer and the bottom support layer are stacked in sequence. The surface wear-resistant layer and the bottom support layer are located on both sides of the core breathable layer, and the through-ventilation channel is aligned with the diamond-shaped vent holes. Hot melt adhesive is applied to both sides of the core breathable layer using a dot coating machine, and then the layer is sent into a composite machine for hot pressing. The composite temperature, pressure and speed are controlled to ensure that the three-layer structure is firmly connected. S5. Finishing treatment: The composite textile fabric is pre-shrinked, shaped, UV-resistant and antibacterial treated, and then inspected, slit and rolled up to obtain the finished high-breathability textile fabric.

[0016] Further, in step S1, the pre-stretching temperature of the warp yarn raw material is 80-90℃, the stretching ratio is 1.2-1.5 times, the heat setting temperature is 120-130℃, and the setting time is 20-30min; the plasma modification treatment power of the weft yarn raw material is 300-400W, the treatment time is 5-8min, and the treatment atmosphere is argon; the loose pre-washing temperature of the surface wear-resistant layer raw material and the bottom support layer raw material is 40-50℃, the washing time is 15-20min, and the drying temperature after washing is 70-80℃.

[0017] Further, in step S4, the hot melt adhesive is applied at a temperature of 150-160℃, the hot pressing temperature of the laminating machine is 160-170℃, the hot pressing pressure is 0.3-0.5MPa, and the hot pressing speed is 5-8m / min; in step S5, the pre-shrinkage rate is controlled at 3%-5%, the setting temperature is 130-140℃, and the setting time is 30-40min; the UV-resistant finishing uses UV absorber UV-327, the finishing temperature is 60-70℃, and the finishing time is 25-35min; the antibacterial finishing uses chitosan quaternary ammonium salt antibacterial agent, the finishing temperature is 50-60℃, and the finishing time is 20-30min.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention employs a three-layer composite structure design. The core breathable layer is a mesh structure formed by the interlacing of warp and weft yarns. Combined with the surface abrasion-resistant layer and the through-hole breathable channels on the bottom support layer, a multi-layered, interconnected breathable system is formed, significantly improving the breathability of the fabric. The diamond-shaped breathable hole design not only increases the breathable area but also enhances the structural stability of the core breathable layer while ensuring breathability, preventing pore deformation under high-frequency impact. The spiral breathable grooves on the weft yarn surface further enhance air circulation efficiency, allowing heat and sweat to be quickly expelled, improving exercise comfort.

[0019] 2. The warp yarns are made of core-sheath composite fibers. The core, polypropylene terephthalate (PPT) fibers, possess excellent mechanical properties and elastic recovery, ensuring the fabric's load-bearing capacity and tensile strength. The sheath, modified polypropylene fibers, offer good abrasion resistance and weather resistance, extending the fabric's service life. The weft yarns utilize cross-section polyester profiled fibers, which not only increase the fiber's specific surface area and improve breathability but also enhance the interlacing stability of the weft and warp yarns, preventing yarn slippage. The material selection and structural design of the surface abrasion-resistant layer and the underlying support layer further balance the fabric's abrasion resistance, support performance, and elasticity requirements, enabling the fabric to meet the multiple performance requirements of trampoline surfaces.

[0020] 3. This invention employs a point-based composite method to connect the three-layer structure. Compared to full composite, this not only reduces obstruction of the ventilation channels and ensures the stability of ventilation performance, but also enhances the connection strength between the three layers, preventing delamination during use. The equilateral triangular array distribution of the composite points makes the stress distribution more uniform, improving the overall structural strength of the textile.

[0021] 4. The production method of this invention is designed with specific raw material pretreatment, weaving, compounding, and finishing processes tailored to the structural and material characteristics of highly breathable textiles. Pre-stretching and heat-setting treatments of the warp yarns improve their dimensional stability and prevent shrinkage and deformation after weaving; plasma modification treatment of the weft yarns enhances their surface activity and improves their interweaving strength with the warp yarns; laser perforation precisely creates through-hole ventilation channels, ensuring alignment accuracy with the diamond-shaped ventilation holes; the specialized finishing process not only improves the dimensional stability of the textile but also imparts UV resistance and antibacterial properties, expanding the product's application scenarios, especially suitable for outdoor trampolines and children's trampoline products.

[0022] 5. The highly breathable textile fabric of this invention has been tested and found to have an air permeability of 80-100 L / (m²). 2 The air permeability (·s) is far higher than that of traditional trampoline fabrics (30-50L / (m²)). 2 Meanwhile, its longitudinal tensile strength is ≥800N / 5cm, transverse tensile strength is ≥700N / 5cm, bursting strength is ≥1500N, and elastic recovery rate is ≥95%, all of which meet the relevant standards of "GBT32611-2016 Gymnastics Trampoline Functional and Safety Requirements and Test Methods". It has achieved a synergistic improvement in air permeability and mechanical properties and has broad market application prospects. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the cross-sectional structure of the high-breathability textile fabric of the present invention; Figure 2 is a schematic diagram of the planar structure of the core breathable layer of the present invention; Figure 3 is a schematic diagram of the composite structure of the core breathable layer and the surface wear-resistant layer of the present invention. Figure 4 is a schematic diagram of the cross-sectional structure of the warp yarn of the present invention; Figure 5 is a schematic diagram of the cross-sectional structure of the weft yarn of the present invention; Figure 6 is a flowchart of the production method of the present invention.

[0024] In the diagram: 1. Surface wear-resistant layer, 2. Core breathable layer, 3. Bottom support layer, 4. Warp yarn, 5. Weft yarn, 6. Diamond-shaped breathable holes, 7. Through-breathable channel, 8. Core, 9. Leather, 10. Spiral breathable groove, 11. Composite point. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-6 ; This invention discloses a highly breathable textile fabric and its production method, with specific embodiments as follows: Example

[0027] A highly breathable textile fabric includes a surface abrasion-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 connected in sequence. The core breathable layer 2 is a mesh structure formed by interlacing warp yarns 4 and weft yarns 5, with diamond-shaped breathable holes 6 formed between the warp yarns 4 and weft yarns 5. The surface abrasion-resistant layer 1 and the bottom support layer 3 are both connected to the core breathable layer 2 by a point-like composite method, and both the surface abrasion-resistant layer 1 and the bottom support layer 3 have through-breathable channels 7 corresponding to the diamond-shaped breathable holes 6.

[0028] In this embodiment, the warp density of the core breathable layer 2 is 28 yarns / inch, the weft density is 18 yarns / inch, the side length of the diamond-shaped breathable holes 6 is 3 mm, and the porosity is 35%. The warp yarns 4 are composite fibers with a core-sheath structure and a core-sheath ratio of 3:2. The core 8 is polypropylene terephthalate fiber with a diameter of 20 filaments, and the sheath 9 is modified polypropylene fiber with a thickness of 5 filaments. The twist of the warp yarns 4 is 70 T / m. The weft yarns 5 are polyester profiled fibers with a cross-shaped cross section. The arm length of the cross-shaped cross section is 15 filaments, and the arm thickness is 3 filaments. Spiral breathable grooves 10 are formed along the length direction on the surface of the weft yarns 5. The pitch of the spiral breathable grooves 10 is 10 mm, the groove width is 0.8 mm, and the groove depth is 0.5 mm.

[0029] The surface abrasion-resistant layer 1 is woven from a 7:3 blend of high-strength polyester staple fiber and bamboo charcoal fiber, with a thickness of 0.3 mm. The diameter of the through-breathing channels 7 is 2 mm, and the distribution density of the through-breathing channels 7 is consistent with the distribution density of the diamond-shaped air pores 6. The bottom support layer 3 is woven from polypropylene filaments and elastic spandex filaments in an 8:2 interlacing ratio, with a thickness of 0.4 mm. The warp density of the bottom support layer 3 is 22 yarns / inch, and the weft density is 14 yarns / inch. The bonding points 11 between the surface abrasion-resistant layer 1 and the core breathable layer 2, and between the bottom support layer 3 and the core breathable layer 2, are bonded with hot melt adhesive. The diameter of the bonding points 11 is 1 mm, the spacing between the bonding points 11 is 10 mm, and the bonding points 11 are distributed in an equilateral triangular array.

[0030] The production method of the above-mentioned highly breathable textile fabric includes the following steps: S1. Raw Material Pretreatment: The warp yarn 4, weft yarn 5, surface abrasion-resistant layer 1, and bottom support layer 3 raw materials are pretreated respectively. The warp yarn 4 raw material undergoes pre-stretching and heat setting treatment. The pre-stretching temperature is 80℃, the stretching ratio is 1.2 times, the heat setting temperature is 120℃, and the setting time is 20min. The weft yarn 5 raw material undergoes plasma modification treatment. The treatment power is 300W, the treatment time is 5min, and the treatment atmosphere is argon. The surface abrasion-resistant layer 1 and bottom support layer 3 raw materials undergo loose pre-washing treatment. The pre-washing temperature is 40℃, the washing time is 15min, and the drying temperature after washing is 70℃.

[0031] S2, Core breathable layer weaving: The pre-treated warp yarns 4 and weft yarns 5 are interwoven using an air-jet loom. The loom parameters are adjusted to make the warp yarn density reach 28 yarns / inch and the weft yarn density reach 18 yarns / inch, forming a core breathable layer 2 with diamond-shaped breathable holes 6.

[0032] S3. Preparation of surface wear-resistant layer and bottom support layer: The blended surface wear-resistant layer 1 raw material is woven into a fabric using a rapier loom. A through-hole ventilation channel 7 with a diameter of 2mm is opened on the woven fabric using a laser perforation machine to obtain the surface wear-resistant layer 1. Polypropylene filament and elastic spandex filament are interwoven using a water jet loom. Similarly, a through-hole ventilation channel 7 with a diameter of 2mm is opened using a laser perforation machine to obtain the bottom support layer 3.

[0033] S4. Composite Molding: The core breathable layer 2, the surface wear-resistant layer 1, and the bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 and the bottom support layer 3 located on both sides of the core breathable layer 2, and the through-ventilation channel 7 aligned with the diamond-shaped ventilation hole 6; hot melt adhesive is applied to both sides of the core breathable layer 2 using a dotting machine at a dotting temperature of 150℃; then it is fed into a composite machine for hot pressing composite, with the hot pressing temperature of the composite machine controlled at 160℃, the hot pressing pressure at 0.3MPa, and the hot pressing speed at 5m / min, so that the three-layer structure is firmly connected.

[0034] S5. Finishing Treatment: The composite textile fabric undergoes pre-shrinking, setting, UV-resistant finishing, and antibacterial finishing. The pre-shrinking rate is controlled at 3%; the setting temperature is 130℃, and the setting time is 30 minutes; the UV-resistant finishing uses UV absorber UV-327, with a finishing temperature of 60℃ and a finishing time of 25 minutes; the antibacterial finishing uses chitosan quaternary ammonium salt antibacterial agent, with a finishing temperature of 50℃ and a finishing time of 20 minutes. After finishing, the fabric is inspected, slit, and wound to obtain the finished high-breathability textile fabric. Example

[0035] A highly breathable textile fabric includes a surface abrasion-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 connected in sequence. The core breathable layer 2 is a mesh structure formed by interlacing warp yarns 4 and weft yarns 5, with diamond-shaped breathable holes 6 formed between the warp yarns 4 and weft yarns 5. The surface abrasion-resistant layer 1 and the bottom support layer 3 are both connected to the core breathable layer 2 by a point-like composite method, and both the surface abrasion-resistant layer 1 and the bottom support layer 3 have through-breathable channels 7 corresponding to the diamond-shaped breathable holes 6.

[0036] In this embodiment, the warp density of the core breathable layer 2 is 30 yarns / inch, the weft density is 20 yarns / inch, the side length of the diamond-shaped breathable holes 6 is 4 mm, and the porosity is 40%. The warp yarns 4 are composite fibers with a core-sheath structure and a core-sheath ratio of 3:2. The core 8 is polypropylene terephthalate fiber with a diameter of 22 filaments, and the sheath 9 is modified polypropylene fiber with a thickness of 6 filaments. The twist of the warp yarns 4 is 80 T / m. The weft yarns 5 are polyester profiled fibers with a cross-shaped cross section. The arm length of the cross-shaped cross section is 18 filaments, and the arm thickness is 4 filaments. Spiral breathable grooves 10 are formed along the length direction on the surface of the weft yarns 5. The pitch of the spiral breathable grooves 10 is 12 mm, the groove width is 1.0 mm, and the groove depth is 0.6 mm.

[0037] The surface abrasion-resistant layer 1 is woven from a 7:3 blend of high-strength polyester staple fiber and bamboo charcoal fiber, with a thickness of 0.4 mm. The diameter of the through-breathing channel 7 is 2.5 mm, and the distribution density of the through-breathing channel 7 is consistent with the distribution density of the diamond-shaped air pores 6. The bottom support layer 3 is woven from polypropylene filament and elastic spandex filament in an 8:2 interlacing ratio, with a thickness of 0.5 mm. The warp density of the bottom support layer 3 is 24 yarns / inch, and the weft density is 16 yarns / inch. The bonding points 11 between the surface abrasion-resistant layer 1 and the core breathable layer 2, and between the bottom support layer 3 and the core breathable layer 2, are bonded with hot melt adhesive. The diameter of the bonding points 11 is 1.5 mm, the spacing between the bonding points 11 is 12 mm, and the bonding points 11 are distributed in an equilateral triangular array.

[0038] The production method of the above-mentioned highly breathable textile fabric includes the following steps: S1. Raw Material Pretreatment: The warp yarn 4, weft yarn 5, surface abrasion layer 1, and bottom support layer 3 are pretreated respectively. The warp yarn 4 is pre-stretched and heat-set. The pre-stretching temperature is 85℃, the stretching ratio is 1.3 times, the heat-setting temperature is 125℃, and the setting time is 25min. The weft yarn 5 is plasma modified. The treatment power is 350W, the treatment time is 6min, and the treatment atmosphere is argon. The surface abrasion layer 1 and bottom support layer 3 are loosely pre-washed. The pre-washing temperature is 45℃, the washing time is 18min, and the drying temperature after washing is 75℃.

[0039] S2, Core breathable layer weaving: The pre-treated warp yarns 4 and weft yarns 5 are interwoven using an air-jet loom. The loom parameters are adjusted to make the warp yarn density reach 30 yarns / inch and the weft yarn density reach 20 yarns / inch, forming a core breathable layer 2 with diamond-shaped breathable holes 6.

[0040] S3. Preparation of surface wear-resistant layer and bottom support layer: The blended surface wear-resistant layer 1 raw material is woven into a fabric using a rapier loom. A through-hole ventilation channel 7 with a diameter of 2.5 mm is opened on the woven fabric using a laser perforation machine to obtain surface wear-resistant layer 1. Polypropylene filament and elastic spandex filament are interwoven using a water jet loom. Similarly, a through-hole ventilation channel 7 with a diameter of 2.5 mm is opened using a laser perforation machine to obtain bottom support layer 3.

[0041] S4. Composite Molding: The core breathable layer 2, the surface wear-resistant layer 1, and the bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 and the bottom support layer 3 located on both sides of the core breathable layer 2, and the through-ventilation channel 7 aligned with the diamond-shaped ventilation hole 6; hot melt adhesive is applied to both sides of the core breathable layer 2 using a dotting machine at a dotting temperature of 155℃; then it is fed into a composite machine for hot pressing composite, with the hot pressing temperature controlled at 165℃, the hot pressing pressure at 0.4MPa, and the hot pressing speed at 6m / min, so that the three-layer structure is firmly connected.

[0042] S5. Finishing Treatment: The composite textile fabric undergoes pre-shrinking, setting, UV-resistant finishing, and antibacterial finishing. The pre-shrinking rate is controlled at 4%; the setting temperature is 135℃, and the setting time is 35 minutes; the UV-resistant finishing uses UV absorber UV-327, with a finishing temperature of 65℃ and a finishing time of 30 minutes; the antibacterial finishing uses chitosan quaternary ammonium salt antibacterial agent, with a finishing temperature of 55℃ and a finishing time of 25 minutes. After finishing, the fabric is inspected, slit, and wound to obtain the finished high-breathability textile fabric. Example

[0043] A highly breathable textile fabric includes a surface abrasion-resistant layer 1, a core breathable layer 2, and a bottom support layer 3 connected in sequence. The core breathable layer 2 is a mesh structure formed by interlacing warp yarns 4 and weft yarns 5, with diamond-shaped breathable holes 6 formed between the warp yarns 4 and weft yarns 5. The surface abrasion-resistant layer 1 and the bottom support layer 3 are both connected to the core breathable layer 2 by a point-like composite method, and both the surface abrasion-resistant layer 1 and the bottom support layer 3 have through-breathable channels 7 corresponding to the diamond-shaped breathable holes 6.

[0044] In this embodiment, the warp density of the core breathable layer 2 is 32 yarns / inch, the weft density is 22 yarns / inch, the side length of the diamond-shaped breathable holes 6 is 5 mm, and the porosity is 45%. The warp yarns 4 are composite fibers with a core-sheath structure and a core-sheath ratio of 3:2. The core 8 is polypropylene terephthalate fiber with a diameter of 25 filaments, and the sheath 9 is modified polypropylene fiber with a thickness of 8 filaments. The twist of the warp yarns 4 is 90 T / m. The weft yarns 5 are polyester profiled fibers with a cross-shaped cross section. The arm length of the cross-shaped cross section is 20 filaments, and the arm thickness is 5 filaments. Spiral breathable grooves 10 are formed on the surface of the weft yarns 5 along the length direction. The pitch of the spiral breathable grooves 10 is 15 mm, the groove width is 1.2 mm, and the groove depth is 0.8 mm.

[0045] The surface abrasion-resistant layer 1 is woven from a 7:3 blend of high-strength polyester staple fiber and bamboo charcoal fiber, with a thickness of 0.5 mm. The diameter of the through-breathing channels 7 is 3 mm, and the distribution density of the through-breathing channels 7 is consistent with the distribution density of the diamond-shaped air pores 6. The bottom support layer 3 is woven from polypropylene filaments and elastic spandex filaments in an 8:2 interlacing ratio, with a thickness of 0.6 mm. The warp density of the bottom support layer 3 is 26 yarns / inch, and the weft density is 18 yarns / inch. The bonding points 11 between the surface abrasion-resistant layer 1 and the core breathable layer 2, and between the bottom support layer 3 and the core breathable layer 2, are bonded with hot melt adhesive. The diameter of the bonding points 11 is 2 mm, the spacing between the bonding points 11 is 15 mm, and the bonding points 11 are distributed in an equilateral triangular array.

[0046] The production method of the above-mentioned highly breathable textile fabric includes the following steps: S1. Raw Material Pretreatment: The warp yarn 4, weft yarn 5, surface abrasion-resistant layer 1, and bottom support layer 3 are pretreated respectively. The warp yarn 4 is pre-stretched and heat-set. The pre-stretching temperature is 90℃, the stretching ratio is 1.5 times, the heat-setting temperature is 130℃, and the setting time is 30min. The weft yarn 5 is plasma modified. The treatment power is 400W, the treatment time is 8min, and the treatment atmosphere is argon. The surface abrasion-resistant layer 1 and bottom support layer 3 are loosely pre-washed. The pre-washing temperature is 50℃, the washing time is 20min, and the drying temperature after washing is 80℃.

[0047] S2, Core breathable layer weaving: The pre-treated warp yarns 4 and weft yarns 5 are interwoven using an air-jet loom. The loom parameters are adjusted to make the warp yarn density reach 32 yarns / inch and the weft yarn density reach 22 yarns / inch, forming a core breathable layer 2 with diamond-shaped breathable holes 6.

[0048] S3. Preparation of surface wear-resistant layer and bottom support layer: The blended surface wear-resistant layer 1 raw material is woven into a fabric using a rapier loom. A through-hole ventilation channel 7 with a diameter of 3mm is opened on the woven fabric using a laser perforation machine to obtain surface wear-resistant layer 1. Polypropylene filament and elastic spandex filament are interwoven using a water jet loom. Similarly, a through-hole ventilation channel 7 with a diameter of 3mm is opened using a laser perforation machine to obtain bottom support layer 3.

[0049] S4. Composite Molding: The core breathable layer 2, the surface wear-resistant layer 1, and the bottom support layer 3 are stacked sequentially, with the surface wear-resistant layer 1 and the bottom support layer 3 located on both sides of the core breathable layer 2, and the through-ventilation channel 7 aligned with the diamond-shaped ventilation hole 6; hot melt adhesive is applied to both sides of the core breathable layer 2 using a dotting machine at a dotting temperature of 160℃; then it is fed into a composite machine for hot pressing composite, with the hot pressing temperature of the composite machine controlled at 170℃, the hot pressing pressure at 0.5MPa, and the hot pressing speed at 8m / min, so that the three-layer structure is firmly connected.

[0050] S5. Finishing Treatment: The composite fabric undergoes pre-shrinking, setting, UV-resistant finishing, and antibacterial finishing. The pre-shrinking rate is controlled at 5%; the setting temperature is 140℃, and the setting time is 40 minutes; the UV-resistant finishing uses UV absorber UV-327, with a finishing temperature of 70℃ and a finishing time of 35 minutes; the antibacterial finishing uses chitosan quaternary ammonium salt antibacterial agent, with a finishing temperature of 60℃ and a finishing time of 30 minutes. After finishing, the fabric is inspected, slit, and wound to obtain the finished high-breathability fabric.

[0051] Performance testing The high-breathability textiles prepared in Examples 1-3 were compared with conventional trampoline textiles in terms of performance. The test items included air permeability, tensile strength, bursting strength, elastic recovery rate, abrasion resistance, and antibacterial rate. The test standards are as follows: 1. Air permeability: Tested according to GB / T5453-1997 "Textiles - Determination of air permeability of fabrics"; 2. Breaking strength: Tested in accordance with GB / T3923.1-2013 "Textiles - Tensile properties of fabrics - Part 1: Determination of breaking strength and elongation at break (strip method)"; 3. Bursting strength: Tested according to GB / T19976-2005 "Determination of bursting strength of textiles - Balloon method"; 4. Elastic recovery rate: Tested according to GB / T3924-2013 "Determination of elastic recovery rate of textile fabrics"; 5. Abrasion resistance: Tested according to GB / T21196.2-2007 "Textiles - Martindale Abrasion Tests - Part 2: Determination of Specimen Breakage"; 6. Antibacterial rate: The test was conducted in accordance with GB / T20944.3-2008 "Evaluation of antibacterial properties of textiles - Part 3: Shaking method", and the test species were Staphylococcus aureus and Escherichia coli.

[0052] The test results are shown in the table below: unit Example 1 Example 2 Example 3 Existing conventional products L / (m²·s) 82 95 98 45 N / 5cm 810 850 880 750 N / 5cm 720 760 790 680 N 1520 1650 1780 1400 % 95 96 97 93 Second-rate 52000 55000 58000 48000 % 99.2 99.5 99.6 none % 99.0 99.3 99.4 none The test results show that the air permeability of the high-breathability textile fabrics prepared in Examples 1-3 of this invention is significantly higher than that of existing conventional products, reaching 82-98 L / (m²). 2 Furthermore, it surpasses existing conventional products in mechanical properties such as tensile strength, bursting strength, elastic recovery rate, and abrasion resistance, and also possesses excellent antibacterial properties, fully meeting the requirements for trampoline bed surfaces. Example 2 exhibits the best overall performance, with an air permeability of 95 L / (m²). 2 With stable mechanical properties and an antibacterial rate exceeding 99%, it is a relatively ideal implementation method. 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 high air permeability textile fabric, characterized by, The surface wear-resistant layer (1), the core breathable layer (2) and the bottom support layer (3) are connected in sequence, the core breathable layer (2) is a mesh structure formed by interweaving warp yarns (4) and weft yarns (5), the rhombic breathable holes (6) are formed between the warp yarns (4) and the weft yarns (5), the surface wear-resistant layer (1) and the bottom support layer (3) are connected with the core breathable layer (2) by point composite mode, and the surface wear-resistant layer (1) and the bottom support layer (3) are both provided with through breathable channels (7) corresponding to the rhombic breathable holes (6). The warp yarns (4) are composite fibers with a skin-core structure, the core part (8) is polytrimethylene terephthalate fiber, and the skin part (9) is modified polypropylene fiber, the weft yarns (5) are polyester profiled fibers with a cross-shaped cross section, and the weft yarns (5) are provided with spiral breathable grooves (10) on the surface along the length direction. The surface wear-resistant layer (1) is woven by blending high-strength polyester staple fibers and bamboo charcoal fibers, the bottom support layer (3) is interwoven by polypropylene filaments and elastic spandex filaments, and the warp density and weft density of the bottom support layer (3) are smaller than those of the core breathable layer (2).

2. The high air permeability textile fabric according to claim 1, wherein, In the core breathable layer (2), the density of the warp yarns (4) is 28-32 per inch, the density of the weft yarns (5) is 18-22 per inch, the side length of the rhombic breathable holes (6) is 3-5 mm, and the porosity is 35%-45%.

3. The high air permeability textile fabric according to claim 1, wherein The skin-core ratio of the warp yarns (4) is 3:2, the diameter of the polytrimethylene terephthalate fiber of the core part (8) is 20-25 filaments, the thickness of the modified polypropylene fiber of the skin part (9) is 5-8 filaments, and the twist of the warp yarns (4) is 70-90 T / m.

4. The high air permeability textile fabric according to claim 1, wherein The arm length of the cross-shaped cross section of the weft yarns (5) is 15-20 filaments, the arm thickness is 3-5 filaments, the pitch of the spiral breathable groove (10) is 10-15 mm, the groove width is 0.8-1.2 mm, and the groove depth is 0.5-0.8 mm.

5. The high air permeability textile fabric of claim 1, wherein In the surface wear-resistant layer (1), the blending ratio of the high-strength polyester staple fibers and the bamboo charcoal fibers is 7:3, the thickness of the surface wear-resistant layer (1) is 0.3-0.5 mm, the diameter of the through breathable channel (7) is 2-3 mm, and the distribution density of the through breathable channel (7) is consistent with the distribution density of the rhombic breathable hole (6).

6. The high air permeability textile fabric of claim 1, wherein, In the bottom support layer (3), the interweaving ratio of the polypropylene filaments and the elastic spandex filaments is 8:2, the thickness of the bottom support layer (3) is 0.4-0.6 mm, the density of the warp yarns (4) of the bottom support layer (3) is 22-26 per inch, and the density of the weft yarns (5) is 14-18 per inch.

7. The high air permeability textile fabric of claim 1, wherein The composite points (11) of the surface wear-resistant layer (1) and the core breathable layer (2) and the bottom support layer (3) and the core breathable layer (2) are bonded by hot melt adhesive, the diameter of the composite points (11) is 1-2 mm, the spacing of the composite points (11) is 10-15 mm, and the composite points (11) are distributed in a regular triangle array.

8. A production method of a high air permeability textile fabric for producing the high air permeability textile fabric according to any one of claims 1 to 7, characterized by, The following steps are included: S1, raw material pretreatment: the warp yarn (4), weft yarn (5), surface wear-resistant layer (1) and bottom support layer (3) are pretreated respectively, wherein the warp yarn (4) is pretensioned and heat set, the weft yarn (5) is plasma modified, and the surface wear-resistant layer (1) and the bottom support layer (3) are loose prewashed; S2, core air-permeable layer (2) weaving: the pretreated warp yarn (4) and weft yarn (5) are interwoven by air-jet loom, and the density of the warp yarn (4) and the weft yarn (5) is controlled to reach the preset value, so as to form the core air-permeable layer (2) with diamond-shaped air-permeable holes (6); S3, surface wear-resistant layer (1) and bottom support layer (3) preparation: the surface wear-resistant layer (1) is woven by using a rapier loom, and the through air-permeable channels (7) are opened on the woven cloth by using a laser drilling machine, so as to obtain the surface wear-resistant layer (1); the polypropylene filament and the elastic spandex filament are interwoven by using a water-jet loom, and the through air-permeable channels (7) are also opened by using a laser drilling machine, so as to obtain the bottom support layer (3); S4, composite forming: the core air-permeable layer (2), the surface wear-resistant layer (1) and the bottom support layer (3) are stacked in sequence, the surface wear-resistant layer (1) and the bottom support layer (3) are respectively located on the two sides of the core air-permeable layer (2), and the through air-permeable channels (7) are aligned with the diamond-shaped air-permeable holes (6); the hot melt adhesive is point-coated on the two surfaces of the core air-permeable layer (2) by using a point-coating machine, and then is sent into a composite machine for hot pressing and compounding, so as to firmly connect the three-layer structure by controlling the compounding temperature, pressure and speed; S5, post-treatment: the compounded textile cloth is pre-shrunk, shaped, anti-ultraviolet treated and antibacterial treated, and then is inspected, cut and wound, so as to obtain the finished product high air-permeable textile cloth.

9. The production method of a high-air-permeability textile fabric according to claim 8, wherein In step S1, the pretensioning temperature of the warp yarn (4) is 80-90℃, the stretching multiple is 1.2-1.5, the heat setting temperature is 120-130℃, and the setting time is 20-30min; the plasma modification treatment power of the weft yarn (5) is 300-400W, the treatment time is 5-8min, and the treatment atmosphere is argon; the loose prewashing temperature of the surface wear-resistant layer (1) and the bottom support layer (3) is 40-50℃, the washing time is 15-20min, and the drying temperature after washing is 70-80℃.

10. The method of producing a high air permeability textile fabric according to claim 8, wherein In step S4, the point-coating temperature of the hot melt adhesive is 150-160℃, the hot pressing temperature of the composite machine is 160-170℃, the hot pressing pressure is 0.3-0.5MPa, and the hot pressing speed is 5-8m / min; in step S5, the pre-shrinkage rate is controlled to be 3%-5%, the setting temperature is 130-140℃, and the setting time is 30-40min; the anti-ultraviolet treatment adopts ultraviolet absorber UV-327, the treatment temperature is 60-70℃, and the treatment time is 25-35min; the antibacterial treatment adopts chitosan quaternary ammonium salt antibacterial agent, the treatment temperature is 50-60℃, and the treatment time is 20-30min.

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