Multifunctional imitation memory polyester twill fabric

Abstract

The utility model discloses a multifunctional imitation memory polyester twill fabric which comprises a fabric body, the fabric body is formed by weaving warp yarns and weft yarns, the warp yarns are 75D / 72F fine denier polyester imitation memory special-shaped filaments, and the weft yarns are 150D / 288F superfine denier polyester filaments; a first bonding layer, a polyurethane layer, a second bonding layer and an antistatic layer are sequentially coated on the fabric body. Compared with the prior art, the fabric has the beneficial effects that the fabric has good imitation memory and waterproof and moisture permeable properties, and the warp yarns and the weft yarns of the fabric adopt twill tearing strength: the warp direction is greater than or equal to 35N, and the weft direction is greater than or equal to 30N; the warp yarns are the special-shaped filaments, the special-shaped sections of the special-shaped filaments are matched with the grooves in the surface, so that the groove structures of the fabric can be like micro water channels, the fabric is matched with the polyurethane film and the TPU hot melt adhesive net film to quickly conduct moisture, the surface area of the special-shaped fibers is increased by 30%-50% compared with that of the circular fibers, and the weight of the fabric is reduced while water evaporation is further accelerated.

Description

Technical Field

[0001] This utility model relates to a fabric, and more particularly to a multifunctional imitation memory polyester twill fabric, especially a waterproof and breathable imitation memory high-form multifunctional imitation memory polyester twill fabric. Background Technology

[0002] Currently, there are three main technological paths for waterproof and breathable fabrics: high-density fabrics have high development costs due to the extremely high precision required for yarn gap control; coated fabrics, although lower in cost, generally suffer from limited breathability (except for wet transfer coatings) and a stiff feel; while laminated fabrics, with their flexible composite structure design, synergistic effects of multiple materials, and environmentally friendly characteristics, exhibit significant technological advantages. As the world's largest-produced synthetic fiber, polyester holds a significant market position due to its excellent mechanical strength, abrasion resistance, and thermochemical stability. However, its rigid molecular structure and lack of hygroscopic groups result in traditional polyester products generally suffering from a stuffy feeling, significant static electricity buildup, and poor wrinkle recovery, severely restricting its application in high-end outdoor equipment.

[0003] Therefore, how to make lightweight polyester fabrics have multiple functions such as rapid moisture absorption, good resilience, and antistatic properties to improve the comfort and functionality of the fabric is a key point and challenge that urgently needs to be addressed. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a lightweight, waterproof, breathable, high-strength, and antistatic multifunctional imitation memory polyester twill fabric.

[0005] This utility model is achieved through the following technical measures:

[0006] The present invention discloses a multifunctional imitation memory polyester twill fabric, comprising a fabric body woven from warp and weft yarns. The warp yarns are 75D / 72F fine denier polyester imitation memory profiled filaments, and the weft yarns are 150D / 288F ultra-fine denier polyester filaments. The fabric body is sequentially covered with a first bonding layer, a polyurethane layer, a second bonding layer, and an antistatic layer.

[0007] As a preferred embodiment of this application, the warp and weft yarns are interwoven in a twill weave or a twill variation weave, and the warp and weft yarns have the same twist direction and twist.

[0008] As a preferred embodiment of this application, the warp and weft yarns are interwoven in a 3 / 1 twill weave. This weaving method provides moderate elasticity in both the warp and weft directions, and the woven fabric itself is easier to bond and process, softer and smoother than plain weave fabrics, while maintaining moderate strength and improving the tear resistance of the fabric.

[0009] As a preferred embodiment of this application, the warp yarn has at least one base loop in its cross-section, and the outer surface of the base loop is radially connected with several extension segments, with adjacent base loops connected by their respective extension segments.

[0010] As a preferred embodiment of this application, the base ring is a hollow triangular ring, with a Y-shaped extension segment connected to each vertex of the base ring, and the included angle between the central axes of two adjacent extension segments is 120°.

[0011] As a preferred embodiment of this application, the surface of the extension section is provided with a plurality of first grooves.

[0012] As a preferred embodiment of this application, the cross-section of the warp yarn has a base ring and an annular body surrounding the base ring. The annular body includes several blades that are radially connected to the outer surface of the base ring and are narrow at both ends and wide in the middle, as well as connecting segments connecting adjacent blades. Each connecting segment is arc-shaped and has the same radius of curvature. Multiple connecting segments are assembled into a circular structure with the center of the base ring as the center along the circumference of the base ring.

[0013] As a preferred embodiment of this application, the surface of the connecting segment is provided with a plurality of second grooves.

[0014] As a preferred embodiment of this application, the polyurethane layer is a polyurethane film (TPU), which itself has microporous membrane pores. The pore diameter is smaller than the droplet diameter but larger than the diameter of water vapor molecules, giving the polyurethane layer waterproof and breathable properties. Typically, the pore diameter on the polyurethane film is less than 2μm, only 1 / 20,000 of the diameter of a water droplet (approximately 0.5mm), capable of blocking rainstorm-level water pressure (withstanding water pressure up to 10,000 mm water column), while allowing water vapor molecules (approximately 0.0004μm) to pass freely. Moreover, the pores are three-dimensional mesh channels, containing approximately 9 billion micropores per square inch, resulting in a water vapor permeability far exceeding that of traditional fabrics, keeping the skin surface dry and providing excellent waterproof and breathable performance. Furthermore, the polyurethane film has a tensile recovery rate exceeding 90%, making it suitable for repeated deformation scenarios (such as sports protective gear and wearable devices), giving the fabric a memory-like function.

[0015] As a preferred embodiment of this application, the first adhesive layer and the second adhesive layer are TPU hot melt adhesive mesh films. The TPU hot melt adhesive mesh film has micropores distributed on it, with a diameter of 0.1-5 μm. The pore size of the micropores is smaller than that of liquid water molecules (about 100 μm) and larger than that of water vapor molecules (0.0004 μm). Combined with a polyurethane film (TPU), it forms a channel that allows liquid water to pass through while gaseous water can pass through, thus achieving both liquid water barrier and gaseous water permeability.

[0016] As a preferred embodiment of this application, the thickness of the first adhesive layer and the second adhesive layer is 5~15μm.

[0017] As a preferred embodiment of this application, the antistatic layer is woven from conductive fibers, and the conductive fibers work together to form an antistatic structure. An antistatic Teflon coating is also provided on the antistatic layer.

[0018] The present invention discloses a multifunctional imitation memory polyester twill fabric, comprising a fabric body woven from warp and weft yarns. The warp yarns are 75D / 72F fine denier polyester imitation memory profiled filaments, and the weft yarns are 150D / 288F ultra-fine denier polyester filaments. The upper surface of the fabric body is sequentially covered with a first bonding layer, a polyurethane layer, a second bonding layer, and an antistatic layer. The lower surface of the fabric body is sequentially covered with a third bonding layer, a moisture-absorbing layer, a fourth bonding layer, and a skin-friendly layer.

[0019] As a preferred embodiment of this application, the woven yarn of the moisture-absorbing layer is any one of cotton yarn, viscose yarn, bamboo fiber, or hemp fiber.

[0020] As a preferred embodiment of this application, the third and fourth adhesive layers are TPU hot melt adhesive webs.

[0021] As a preferred embodiment of this application, the yarn of the skin-friendly layer is an irregularly shaped moisture-wicking yarn with a cross-section. This effectively improves moisture-wicking efficiency, quickly removes moisture, keeps the skin-friendly layer dry, and ensures comfortable wear.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The warp yarn of the fabric in this application is made of 75D / 72F fine denier polyester imitation memory profile filament, and the weft yarn is made of 150D / 288F ultra-fine denier polyester filament. This fabric has recoverability, which makes the fabric have good imitation memory: elastic recovery rate ≥85%; wrinkle recovery angle ≥250°; and the warp and weft yarns of the fabric in this application have twill tear strength: warp ≥35N, weft ≥30N;

[0024] 2. The fabric of this application is laminated with a polyurethane film by hot-melt adhesive, which enhances the airtightness and watertightness of the fabric. Its unique breathability allows internal moisture to escape quickly, greatly improving the fabric's waterproof and breathable performance. The waterproof and breathable performance is ≥1 level (i.e., before washing, hydrostatic pressure ≥20Kpa, water repellency ≥3 level, and moisture permeability ≥3000g / (m²)). 2 • 24h); after washing, the hydrostatic pressure is ≥15Kpa).

[0025] 3. The adhesive layer of this application uses a TPU hot melt adhesive mesh. The TPU hot melt adhesive mesh has micropores with a diameter of 0.1-5μm. The pore size of the micropores is smaller than that of liquid water molecules (about 100μm) and larger than that of water vapor molecules (0.0004μm). Combined with a polyurethane film (TPU), it forms a channel that allows liquid water to pass through while allowing gaseous water to pass through.

[0026] 4. The warp yarn of this application is a profiled filament. The profiled cross section of the profiled filament, combined with the grooves on the surface, can make the groove structure of the fabric resemble a micro waterway. Combined with the polyurethane film and TPU hot melt adhesive web, it forms a capillary effect, which quickly wicks away moisture through capillary action and directs liquid water from the skin surface. The surface area of ​​the profiled fiber is 30%-50% larger than that of the round fiber, which further accelerates the evaporation of moisture. Moreover, the hollow structure of the profiled filament can reduce the weight of the fabric.

[0027] 5. The fabric of this application has an antistatic layer, which can effectively prevent static electricity. The composite of the fabric has antistatic properties: surface resistivity ≤1×10¹⁰Ω, half-life: ≤6s;

[0028] 6. The fabric of this application can be provided with a moisture-wicking layer and a skin-friendly layer as needed, which can effectively improve the moisture-wicking efficiency, quickly remove moisture, keep the skin-friendly layer dry, and make it comfortable to wear. Attached Figure Description

[0029] Figure 1 This is a structural diagram of a multifunctional imitation memory polyester twill fabric according to one embodiment of the present invention.

[0030] Figure 2 This is a structural diagram of a multifunctional imitation memory polyester twill fabric according to another embodiment of the present invention.

[0031] Figure 3 This is a structural diagram of the fabric body in one embodiment of the present invention.

[0032] Figure 4 This is a schematic cross-sectional view of the warp yarn in one embodiment of the present invention.

[0033] Figure 5 This is a schematic cross-sectional view of the warp yarn in another embodiment of the present invention.

[0034] Figure 6 This is a schematic cross-sectional view of the warp yarn in the third embodiment of this utility model.

[0035] Figure 7 This is a schematic cross-sectional view of the yarn in the skin-friendly layer in the first embodiment of this utility model.

[0036] In the diagram: 1. Fabric body; 11. Warp yarn; 111. Base loop; 112. Extension section; 113. Ring body; 1131. Blade; 1132. Connecting section; 12. Weft yarn; 2. First bonding layer; 3. Polyurethane layer; 4. Second bonding layer; 5. Antistatic layer; 6. Third bonding layer; 7. Moisture-absorbing layer; 8. Fourth bonding layer; 9. Skin-friendly layer. Detailed Implementation

[0037] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application.

[0038] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0039] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this application does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of implementation of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this application.

[0040] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0041] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The present application will be further described below with reference to specific embodiments, but the scope of protection of the present application is not limited thereto.

[0045] like Figure 1 As shown, the present invention discloses a multifunctional imitation memory polyester twill fabric, comprising a fabric body 1, characterized in that: the fabric body 1 is woven from warp yarns 11 and weft yarns 12, wherein the warp yarns 11 are 75D / 72F fine denier polyester imitation memory profiled filaments, and the weft yarns 12 are 150D / 288F ultrafine denier polyester filaments; the fabric body 1 is sequentially covered with a first bonding layer 2, a polyurethane layer 3, a second bonding layer 4, and an antistatic layer 5.

[0046] like Figure 3 As shown, the warp yarn 11 and the weft yarn 12 are interwoven according to a twill weave or a variation of the twill weave, and the warp yarn 11 and the weft yarn 12 have the same twist direction.

[0047] like Figure 3 As shown, the warp yarns 11 and the weft yarns 12 are interwoven in a 3 / 1 twill weave. This weaving method gives both warp and weft yarns moderate elasticity, and the woven fabric itself is easier to bond and process, softer and smoother than plain weave fabrics, while maintaining moderate strength and improving the tear strength of the fabric.

[0048] like Figure 3 As shown, the warp and weft yarns are interwoven in a 3 / 1 twill weave. This weaving method provides moderate elasticity in both the warp and weft directions, and the woven fabric itself is easier to bond and process, softer and smoother than plain weave fabrics, while maintaining moderate strength and improving the fabric's tear resistance.

[0049] like Figure 4 As shown, the cross-section of the warp yarn 11 has at least one base loop 111, and the outer surface of the base loop 111 is radially connected with several extension segments 112, and adjacent base loops 111 are connected by their respective extension segments 112.

[0050] like Figure 4 and Figure 5 As shown, the base ring 111 is a triangular hollow ring, and each vertex of the base ring 111 is connected to a Y-shaped extension segment 112, with the included angle between the central axes of two adjacent extension segments 112 being 120°.

[0051] like Figure 4 As shown, the cross-section of the warp yarn 11 has a base ring 111, and the outer surface of the base ring 111 is radially connected with several extension segments 112.

[0052] like Figure 5 As shown, the cross-section of the warp yarn 11 has two base loops 111, and the outer surface of the base loops 111 is radially connected with several extension segments 112. Adjacent base loops 111 are connected by their respective extension segments 112.

[0053] like Figure 4 As shown, the surface of the extension 112 is provided with a plurality of first grooves.

[0054] like Figure 6 As shown, the cross-section of the warp 11 has a base ring 111 and an annular body 113 surrounding the base ring 111. The annular body 113 includes several blades 1131 that are radially connected to the outer surface of the base ring 111 and are narrow at both ends and wide in the middle, as well as connecting segments 1132 that connect adjacent blades 1131. Each connecting segment 1132 is arc-shaped and has the same radius of curvature. Multiple connecting segments 1132 are spliced ​​together along the circumference of the base ring 111 to form a circular structure with the center of the base ring 111 as the center.

[0055] like Figure 5As shown, the surface of the connecting segment 1132 is provided with a plurality of second grooves.

[0056] like Figure 1 and Figure 2 As shown, the first adhesive layer 2 and the second adhesive layer 4 are TPU hot melt adhesive webs.

[0057] like Figure 1 and Figure 2 As shown, the thickness of the first adhesive layer 2 and the second adhesive layer 4 is 5~15μm.

[0058] like Figure 1 and Figure 2 As shown, the antistatic layer 5 is woven from conductive fiber filaments, and the conductive fiber filaments work together to form an antistatic structure.

[0059] like Figure 2 As shown, the present invention discloses a multifunctional imitation memory polyester twill fabric, comprising a fabric body 1, which is woven from warp yarns 11 and weft yarns 12. The warp yarns 11 are 75D / 72F fine denier polyester imitation memory profiled filaments, and the weft yarns 12 are 150D / 288F ultra-fine denier polyester filaments. The upper surface of the fabric body 1 is sequentially covered with a first bonding layer 2, a polyurethane layer 3, a second bonding layer 4, and an antistatic layer 5. The lower surface of the fabric body 1 is sequentially covered with a third bonding layer 6, a moisture-absorbing layer 7, a fourth bonding layer 8, and a skin-friendly layer 9.

[0060] like Figure 2 As shown, the woven yarn of the moisture-absorbing layer is any one of cotton yarn, viscose yarn, bamboo fiber, or hemp fiber.

[0061] like Figure 2 As shown, the third and fourth adhesive layers are TPU hot melt adhesive mesh.

[0062] like Figure 7 As shown, the yarn in the skin-friendly layer is a cross-shaped moisture-wicking yarn. This effectively improves moisture-wicking efficiency, quickly removes moisture, keeps the skin-friendly layer dry, and ensures comfortable wear.

[0063] The fabric properties of this application, as tested, are as follows: Waterproof and breathable performance: ≥1 level (i.e., before washing, hydrostatic pressure ≥20Kpa, water repellency ≥3 level, and moisture permeability ≥3000g / (m²)). 2 • 24h); after washing, hydrostatic pressure ≥15Kpa); antistatic properties: surface resistivity ≤1×10¹⁰Ω, half-life: ≤6s; memory-like properties: elastic recovery rate ≥85%; wrinkle recovery angle ≥250°; tear strength: warp ≥35N, weft ≥30N.

[0064] The above embodiments are for illustrating the implementation schemes disclosed in this utility model and should not be construed as limiting the utility model. Furthermore, various modifications listed herein, as well as variations in the methods and compositions of the utility model, will be apparent to those skilled in the art without departing from the scope and spirit of this utility model. Although this utility model has been specifically described in conjunction with various specific preferred embodiments, it should be understood that this utility model should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included within the scope of this utility model.

Claims

1. A multifunctional imitation memory polyester twill fabric, comprising a fabric body (1), characterized in that: The fabric body (1) is woven from warp yarns (11) and weft yarns (12). The warp yarns (11) are 75D / 72F fine denier polyester imitation memory filaments, and the weft yarns (12) are 150D / 288F ultra-fine denier polyester filaments. The fabric body (1) is covered with a first bonding layer (2), a polyurethane layer (3), a second bonding layer (4), and an antistatic layer (5) in sequence.

2. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The warp yarns (11) and the weft yarns (12) are interwoven in a twill weave or a twill variation weave, and the warp yarns (11) and the weft yarns (12) have the same twist direction.

3. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The cross section of the warp yarn (11) has at least one base loop (111), and the outer surface of the base loop (111) is radially connected with several extension segments (112), and adjacent base loops (111) are connected by their respective extension segments (112).

4. The multifunctional imitation memory polyester twill fabric according to claim 3, characterized in that: The base ring (111) is a triangular hollow ring, and a Y-shaped extension segment (112) is connected to each vertex of the base ring (111). The included angle between the central axes of two adjacent extension segments (112) is 120°.

5. The multifunctional imitation memory polyester twill fabric according to claim 4, characterized in that: The surface of the extension section (112) is provided with a plurality of first grooves.

6. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The cross-section of the warp yarn (11) has a base ring (111) and an annular body (114) surrounding the base ring (111). The annular body (114) includes several blades (1131) that are radially connected to the outer surface of the base ring (111) and are narrow at both ends and wide in the middle, as well as connecting segments (1132) that connect adjacent blades (1131). Each connecting segment (1132) is arc-shaped and has the same radius of curvature. Multiple connecting segments (1132) are assembled into a circular structure with the center of the base ring (111) as the center along the circumference of the base ring (111).

7. The multifunctional imitation memory polyester twill fabric according to claim 6, characterized in that: The surface of the connecting segment (1132) is provided with a plurality of second grooves.

8. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The first adhesive layer (2) and the second adhesive layer (4) are TPU hot melt adhesive mesh.

9. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The thickness of the first adhesive layer (2) and the second adhesive layer (4) is 5~15μm.

10. The multifunctional imitation memory polyester twill fabric according to claim 1, characterized in that: The antistatic layer (5) is woven from conductive fiber filaments, and the conductive fiber filaments cooperate with each other to form an antistatic structure.

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