High-moisture-permeability four-way stretch fabric with three-in-one composite structure

Abstract

The invention discloses a three-in-one composite structure high-moisture-permeability four-way stretch fabric which comprises a fabric body, the fabric body sequentially comprises an outer brocade and spandex blended four-way stretch jacquard base cloth layer, a middle non-porous moisture-permeable waterproof film functional layer and an inner layer from outside to inside, a waterproof layer is arranged on the surface layer of the outer brocade and spandex blended four-way stretch jacquard base cloth layer, and a waterproof layer is arranged on the inner layer of the outer brocade and spandex blended four-way stretch jacquard base cloth layer. The middle non-porous moisture-permeable waterproof film functional layer is made of a polyurethane non-porous film, the inner layer is made of 30D cuttlebone or superfine denier nylon 20D fiber, the fabric can still keep the original elasticity after the three layers of fabric are coated with films, a wearer feels comfortable, the moisture permeability of the fabric can be improved, and the fabric has the advantages that the fabric is comfortable to wear, the moisture permeability of the fabric can be improved, and the fabric has a good waterproof effect. The fabric has the advantages that moisture is effectively discharged during sports, stuffiness is reduced, wear resistance and oxidation resistance of the fabric are enhanced, functions can still be maintained after repeated washing, antistatic capacity of the fabric is improved, environmental protection and safety are improved, the fabric is applied to high-comfort outdoor clothes, and market competitiveness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fabric manufacturing, in particular to a highly moisture-permeable four-way stretch fabric with a three-in-one composite structure. Background Art

[0002] Traditional three-in-one breathable waterproof fabrics are mainly used in outdoor clothing (such as jackets, raincoats), protective clothing, tents, sleeping bags and other scenes that require waterproof and breathable functions. From the outside to the inside, the fabric includes: the outer layer is a polyester fabric treated with Teflon coating or other fluorine compound technology, the middle layer is a polytetrafluoroethylene (PTFE) breathable waterproof membrane with a microporous structure, and the inner layer is a polyester or nylon base fabric. Its water pressure resistance can reach more than 8000mm, and the moisture permeability is usually 3000g / m² / 24h. However, its lack of elasticity, insufficient breathability, and easy generation of static electricity limit its application in high-end sportswear and scenes with high comfort requirements.

[0003] The disadvantages of this fabric currently on the market are: 1. Traditional polyester fabrics are usually non-elastic or have very low elasticity, which makes the clothing feel restrictive and less comfortable when exercising.

[0004] 2. The polyester base fabric itself is highly hydrophobic and has poor air permeability, which can easily cause a stuffy feeling in high temperature or high humidity environments.

[0005] 3. Polyester fabrics are prone to static electricity, which attracts dust and impurities.

[0006] 4. Polyester is a synthetic fiber that produces pollutants during the production process, is not easy to degrade, and is not environmentally friendly.

[0007] 5. After long-term washing, the micropores of fabrics using PTFE microporous membranes may be blocked by salt in sweat or detergent residues, resulting in a decrease in moisture permeability.

[0008] 6. Polyester fabrics usually feel harder, which affects wearing comfort. Summary of the invention

[0009] The object of the present invention is to provide: 1. Enhance fabric elasticity and improve comfort; 2. Improve moisture permeability to meet the dual needs of sportswear for comfort and functionality; 3. Improve the wear resistance and oxidation resistance of fabrics; 4. Enhance anti-static ability; 5. Reduce pollutants that may be generated during the production process and improve environmental performance; 6. A three-in-one composite structure with high moisture permeability and four-sided stretch fabric that meets the market demand for high-comfort performance outdoor clothing and enhances product competitiveness.

[0010] To achieve the above object, the present invention provides the following technical solutions: A three-in-one composite structure of highly breathable four-way stretch fabric, comprising a fabric body, wherein the fabric body comprises, from outside to inside, an outer nylon-spandex blended four-way stretch jacquard base fabric layer, a middle non-porous breathable waterproof membrane functional layer and an inner layer, the surface of the outer nylon-spandex blended four-way stretch jacquard base fabric layer is provided with a waterproof layer, the middle non-porous breathable waterproof membrane functional layer adopts a polyurethane non-porous film, and the inner layer is 30D gauze or ultra-fine denier nylon cot 20D fiber.

[0011] Preferably, the outer nylon-spandex blended four-way stretch jacquard base fabric layer is a nylon-spandex blend, and the ratio of the nylon-spandex blend is 85:15.

[0012] Preferably, the outer nylon-spandex blended four-way stretch jacquard base fabric layer forms a porous microstructure through a three-dimensional 3D twill weaving process, which gives the fabric bidirectional extensibility and wrinkle resistance. Traditional polyester fabrics are usually inelastic or have very low elasticity, which makes the clothing feel restrained during exercise and has poor comfort. The middle functional layer adopts a polyurethane non-porous film, which is soft and tough. The outer base fabric and the middle layer are dot-bonded with hot-melt adhesive to retain the elasticity of the surface fabric, thereby reducing the sense of restraint when the clothing is worn and improving the comfort of the wearer.

[0013] Preferably, the ultra-fine denier nylon cot 20D fiber is woven through high-density plain weave to form a lightweight base fabric with a grammage of 55g / m². The existing polyester base fabric itself has strong hydrophobicity and poor air permeability, and is prone to produce a stuffy feeling in a high temperature or high humidity environment. This patent adopts a warp-knitted chain structure through the inner 30D gauze layer to form an air diversion channel, thereby increasing the air permeability, moisture conductivity and anti-static ability of the fabric, so that the wearer can effectively dehumidify and reduce the feeling of stuffiness during exercise.

[0014] Preferably, after the waterproof layer is formed, a uniform hydrophobic layer is formed on the fiber surface, giving the nylon-spandex fabric a lasting water-repellent property. The waterproof agent does not contain long-chain perfluorinated compounds, meets the standards, and reduces potential harm to the environment and human body.

[0015] Preferably, the outer nylon-spandex blended four-way stretch jacquard base fabric layer and the middle non-porous breathable waterproof membrane functional layer are point-bonded by hot-melt adhesive, and the bonding area accounts for ≤30%, thereby retaining the elasticity of the surface fabric, and enhancing the wear resistance and oxidation resistance of the fabric. Compared with the traditional non-elastic polyester three-in-one fabric, this structure combines the elastic base fabric with the flexible composite process to achieve an elastic deformation capacity with a two-way stretch rate of 10%-15% while maintaining waterproofness and moisture permeability. It still maintains a soft texture and high-quality elasticity in extremely cold conditions, and its functions can be maintained after repeated washing.

[0016] Preferably, the intermediate non-porous moisture-permeable waterproof membrane functional layer is a PU waterproof and moisture-permeable membrane, and the PU waterproof and moisture-permeable membrane can resist the growth of mold, short-stalked mold and mixed spore-forming microorganisms.

[0017] Preferably, the thickness of the polyurethane non-porous film is 0.015-0.020 mm, and the hydrostatic pressure of the film is greater than 10000 Pa.

[0018] Preferably, the 30D yarn adopts a warp-knitted chain structure.

[0019] In summary, due to the adoption of the above technology, the beneficial effects of the present invention are: 1. The middle functional layer is made of polyurethane non-porous film, which is soft and tough. The outer base fabric and the middle layer are dot-bonded with hot-melt adhesive to retain the elasticity of the surface fabric, reduce the sense of restraint when wearing the garment, and improve the comfort of the wearer.

[0020] 2. The inner 30D gauze layer adopts a warp-knitted chain structure to form an air diversion channel, which increases the air permeability, moisture conductivity and anti-static ability of the fabric, allowing the wearer to effectively remove moisture and reduce the feeling of stuffiness during exercise.

[0021] 3. The wear resistance and oxidation resistance of the fabric are enhanced. Compared with the traditional non-elastic polyester three-in-one fabric, this structure combines the elastic base fabric with the flexible composite process to achieve an elastic deformation capacity of 10%-15% in a two-way stretch rate while maintaining waterproofness and moisture permeability. It still maintains soft texture and high-quality elasticity in extremely cold conditions, and its functions can be maintained after repeated washing.

[0022] 4. After treatment with the waterproof agent, a uniform hydrophobic layer is formed on the fiber surface, giving the nylon-spandex fabric a lasting water-repellent property, effectively preventing the penetration of liquids such as rain and oil stains.

[0023] 5. Improved environmental protection and safety: The waterproofing agent does not contain long-chain perfluorinated compounds such as PFOA and PFOS, complies with EU REACH regulations and OEKO-TEX® standards, and reduces potential harm to the environment and human body.

[0024] 6. This fabric is used in high-comfort performance outdoor clothing, effectively improving market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings of the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is a comparison chart of polymer materials’ resistance to microbial growth; Figure 3 This is a high water pressure test diagram; Figure 4 This is a high flexural resistance test diagram; Figure 5 To test the state of the QUANTUM-3L fabric before static water pressure resistance; Figure 6 To test the results of the static water pressure resistance of QUANTUM-3L; Figure 7 To test the state of the QUANTUM-3T fabric before static water pressure resistance; Figure 8 This is the result of testing the static water pressure resistance of QUANTUM-3T. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the specification.

[0029] The present invention provides Figure 1The three-in-one composite structure of a highly breathable four-sided stretch fabric is shown, comprising a fabric body 10, wherein the fabric body 10 comprises, from outside to inside: 1. Outer nylon-spandex blended four-way stretch jacquard base fabric layer 101: The base fabric layer is made of nylon-spandex blended with a nylon-spandex blending ratio of 85:15, which gives the fabric excellent four-way resilience and wear resistance. Its surface is treated with C6 waterproofing agent to form a uniform hydrophobic layer on the fiber surface, giving the nylon-spandex fabric lasting water-repellent properties (contact angle ≥ 130°), effectively blocking the penetration of liquids such as rain and oil stains. The C6 waterproofing agent does not contain long-chain perfluorinated compounds such as PFOA and PFOS, and complies with EU REACH regulations and OEKO-TEX® standards, reducing potential harm to the environment and human body.

[0030] 2. The middle non-porous breathable waterproof membrane functional layer 102: The middle functional layer is made of a polyurethane non-porous film, which is soft and tough. Although the thickness is only 0.015-0.020mm, it can maintain extremely high water pressure resistance, and the hydrostatic pressure of the film reaches >10000Pa (ISO 811 test). Because of the structure of the non-porous membrane, it can have better mildew resistance. In the comparative experiment of the resistance of common polymer materials to the growth of microorganisms, it was found that the PU waterproof and breathable membrane can effectively resist the growth of microorganisms such as mold, short-stalked mold and mixed spores. In the test of oxidation resistance and flexural resistance, the performance of PU waterproof and breathable membrane is also better than other polymer materials. The outer base fabric and the middle layer are dot-bonded by hot melt adhesive, and the bonding area accounts for ≤30%, retaining the elasticity of the surface fabric; Advantages of PU waterproof and breathable membrane: 1. Good feel, soft and comfortable, can completely reach the appearance and feel of PTFE membrane, but with higher elasticity More comfortable.

[0031] 2. High temperature resistance up to 160℃, suitable for washing and drying process, post-processing process, and sewing of water stop strips.

[0032] 3. Rich colors, can be customized according to customer needs.

[0033] 4. High ink absorption, can be processed by oven, and is suitable for 2.5 Layer printing process.

[0034] 5. Environmentally friendly materials meet the current global carbon reduction and environmental protection requirements. Gore-tex surpasses TPU film and can be completely decomposed naturally. It is clean and non-toxic. However, PTFE film cannot be decomposed naturally after landfill because it is a special fluorinated polymer (Teflon). If it is incinerated, it will produce carcinogens, causing serious environmental problems.

[0035] 6. In the field of biomedicine, it has excellent biocompatibility, is non-toxic, has no allergic reaction, and has no local irritation. Therefore, it is widely used in medical, health and other related products as well as sports and protective equipment.

[0036] 7. It has heat resistance and oxidation resistance. When the product needs to be used in a high temperature environment (such as above 70°C) for a long time, it is necessary to consider the oxidation (aging) phenomenon of the selected material and the oxygen in the air. It can be used in various harsh environments. Generally speaking, the temperature resistance is above 160°C.

[0037] like Figure 2 As shown, due to the structure of the non-porous membrane, it can have better mildew resistance. Figure 2 For several common Comparison of polymer materials' resistance to microbial growth.

[0038] like Figure 3 As shown, due to the non-porous structure, the fabric is soft and tough. Although the thickness is only 0.015-0.020mm, it can maintain extremely high water pressure resistance. Figure 3 For the test method.

[0039] 3. Inner layer 103: When the material is 30D yarn, the 30D yarn adopts a warp-knitted chain structure to form an air guide channel to increase the air permeability, moisture conductivity and antistatic ability of the fabric; When the material is made of ultra-fine nylon cot 20D fiber, a lightweight base fabric with a gram weight of 55g / m² is formed through high-density plain weave, which has both windproof and puncture resistance. The surface is heat-set to reduce the friction coefficient with the skin and improve wearing comfort. The PU film and the nylon cot layer are compounded through a low-temperature hot-pressing process to ensure elasticity and durability. The PU film and the nylon cot layer are compounded through a low-temperature hot-pressing process to ensure elasticity and durability.

[0040] Compared with traditional nylon cot fabric, this structure achieves an elastic deformation capacity of 10%-15% in two-way stretch while maintaining waterproofness and moisture permeability through the innovative combination of elastic three-dimensional woven nylon-spandex surface fabric layer, modified non-porous PU membrane and high-density nylon cot bottom layer. It still maintains soft texture and high-quality elasticity in extremely cold conditions, solving the technical bottlenecks of traditional fabrics in lightweight, moisture permeability and environmental protection, and effectively improving the wearing comfort of sportswear.

[0041] like Figure 4 As shown, when the product needs to be used under repeated cyclic stress, attention should be paid to the possibility of breakage due to poor material flexibility. PU waterproof and breathable membrane can still maintain excellent flexibility resistance in any environment, making it the best choice among polymer materials.

[0042] Working principle: First, for this type of three-in-one composite structure of highly breathable four-way stretch fabric, a nylon-spandex blended fabric with a ratio of 85:15 is used to form an outer nylon-spandex blended four-way stretch jacquard base fabric layer 101, giving the fabric excellent four-way resilience and wear resistance, and its surface is waterproofed. After the waterproofing agent treatment, a uniform waterproof layer 104 is formed on the fiber surface, giving the nylon-spandex fabric a lasting water-repellent performance. The waterproof layer 104 can effectively prevent liquids such as rainwater and oil stains from penetrating, forming the outermost layer of the fabric, and then the outer nylon-spandex blended four-way stretch jacquard base fabric layer 101 and the middle non-porous breathable waterproof membrane functional layer 102 are dot-bonded by hot melt adhesive , the bonding area accounts for ≤30%, retaining the elasticity of the surface fabric, and then the middle non-porous breathable waterproof membrane functional layer 102 is bonded to the inner layer 103. When bonding, the corresponding inner layer 103 material is selected according to the needs. When the material is the inner layer 30D gauze, the inner layer 30D gauze adopts a warp-knitted chain structure to form an air diversion channel, which increases the air permeability, moisture conductivity and anti-static ability of the fabric; when the material is ultra-fine denier nylon cot 20D fiber, a lightweight base fabric with a gram weight of 55g / m² is formed through high-density plain weave, which has both windproof and puncture resistance. The surface is heat-set to reduce the friction coefficient with the skin and improve wearing comfort. The PU film and the nylon cot layer are compounded through a low-temperature hot pressing process to ensure elasticity and durability. The PU film and the nylon cot layer are compounded through a low-temperature hot pressing process to ensure elasticity and durability to form an air diversion channel, which increases the air permeability, moisture conductivity and anti-static ability of the fabric. After the three-layer fabric is laminated, it can still maintain the original elasticity of the fabric, making the wearer feel comfortable.

[0043] The QUANTUM-3L consists of a three-in-one composite structure, and its bottom layer is 20D nylon, which has high moisture permeability and static water pressure resistance. Figure 5 When the static water pressure test result is shown as Figure 6 shown.

[0044] The QUANTUM-3T, which is composed of a three-in-one composite structure, has a 30D yarn bottom layer with high moisture permeability and static water pressure resistance. Figure 7 When the static water pressure test result is shown as Figure 8 As shown ‌‌‌‌‌‌‌‌‌‌‌.

Claims

1. A highly breathable four-sided stretch fabric with a three-in-one composite structure, comprising a fabric body (10), characterized in that: The fabric body (10) comprises, from outside to inside, an outer nylon-spandex blended four-way stretch jacquard base fabric layer (101), an intermediate non-porous moisture-permeable waterproof membrane functional layer (102), and an inner layer (103); the outer nylon-spandex blended four-way stretch jacquard base fabric layer (101) is provided with a waterproof layer (104) on its surface; and the inner layer (103) is 30D gauze or ultra-fine nylon cot 20D fiber.

2. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The outer nylon-spandex blended four-way stretch jacquard base fabric layer (101) is a nylon-spandex blended fabric, and the ratio of the nylon-spandex blended fabric is 85:

15.

3. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The outer nylon-spandex blended four-way stretch jacquard base fabric layer (101) is formed into a porous microstructure through a three-dimensional 3D twill weaving process, thereby giving the fabric bidirectional extensibility and wrinkle resistance.

4. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The ultra-fine denier nylon Cotton 20D fiber is woven through high-density plain weave to form a lightweight base fabric with a grammage of 55g / m²‌‌‌.

5. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: After the waterproof layer (104) is formed, a uniform hydrophobic layer is formed on the fiber surface, giving the nylon-spandex fabric a lasting water-repellent property.

6. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The outer nylon-spandex blended four-way stretch jacquard base fabric layer (101) and the middle non-porous moisture-permeable waterproof membrane functional layer (102) are dot-bonded by hot melt adhesive, with the bonding area accounting for ≤30%, thereby retaining the elasticity of the surface fabric.

7. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The intermediate non-porous moisture-permeable waterproof membrane functional layer (102) is a PU waterproof and moisture-permeable membrane, which can resist the growth of mold, short-stalked mold and mixed spore-forming microorganisms.

8. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The thickness of the polyurethane non-porous film is 0.015-0.020 mm, and the hydrostatic pressure of the film is greater than 10000 Pa.

9. The three-in-one composite structure highly breathable four-way stretch fabric according to claim 1, characterized in that: The 30D light yarn adopts a warp-knitted chain structure.

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