Composite moisture-conducting fabric, preparation process thereof and trousers

Abstract

The invention discloses a composite moisture-conducting fabric which comprises base cloth and lining cloth, the base cloth is a one-way moisture-conducting fabric with the denier number smaller than 90 D, and the base cloth is a tatting texture fabric formed by warp yarns and weft yarns in a staggered mode. The lining cloth is located on the inner side of the base cloth and makes contact with the human skin, at least part of the edge of the lining cloth is fixed to the base cloth, and the lining cloth and the base cloth are separated from the part outside the sewing area; the denier number of the lining cloth is smaller than or equal to that of the base cloth. The invention further discloses a preparation process of the composite moisture-conducting fabric. The invention further discloses trousers. The trousers body at least comprises the rear trousers piece corresponding to the buttocks of the human body. And the rear trouser piece is made of the composite moisture-conducting fabric. According to the invention, on the basis of ensuring the softness and moisture conductivity of the fabric, the phenomenon of overlapped lines caused by friction during use of the base cloth with a one-way moisture conductivity function can be avoided, the light, thin, soft, reliable moisture conductivity and stability of the fabric are considered, and the aesthetic property is improved.

Description

Technical Field

[0001] This invention relates to the field of textile fabric technology, specifically to a composite moisture-wicking fabric, its preparation process, and trousers. Background Technology

[0002] One-way moisture-wicking fabric is a smart fabric that uses special structures or finishing techniques to quickly and directionally transfer sweat (liquid water) from the skin's surface from the inside (skin-contact layer) to the outside (environmental layer), where it evaporates and diffuses as quickly as possible. Physical one-way moisture-wicking fabric refers to fabrics that achieve their moisture-wicking function purely through the physical properties of the fiber material, yarn structure, and fabric design, without relying on chemical additives. Building upon this one-way moisture-wicking function, physical one-way moisture-wicking fabric retains the softness, breathability, and other excellent tactile qualities of the basic fibers to the greatest extent possible.

[0003] Existing low-denier woven unidirectional moisture-wicking fabrics are widely used in summer trousers due to their softer and lighter yarns. However, when used in trousers, these fabrics experience greater friction in the arm area, causing relative slippage between the warp and weft yarns under external force. This disrupts the unidirectional moisture-wicking structure of the fabric, leading to slight misalignment and deformation of the warp and weft yarns, resulting in overlapping wrinkles. Once these wrinkles form, they are difficult to eliminate by simply smoothing or hanging due to the fabric's weak elasticity. Summary of the Invention

[0004] The purpose of this invention is to provide a composite moisture-wicking fabric, its preparation process, and trousers to solve the problem of overlapping patterns easily occurring in low-denier woven unidirectional moisture-wicking fabrics.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention discloses a composite moisture-wicking fabric, comprising: a base fabric and an interlining. The base fabric is a unidirectional moisture-wicking fabric with a denier number less than 90D. This unidirectional moisture-wicking fabric achieves directional moisture transfer from the inside to the outside through the yarn structure and / or fabric structure design of the fiber material. The base fabric is a woven fabric formed by interlacing warp and weft yarns. The interlining is located inside the base fabric and contacts human skin. The edges of the interlining are at least partially fixed to the base fabric, and the portions of the interlining and base fabric outside the sewn area are separate from each other. The denier number of the interlining is less than or equal to that of the base fabric.

[0007] Preferably, the lining is made of moisture-wicking polyester, moisture-wicking nylon, or a unidirectional moisture-wicking fabric similar to the base fabric.

[0008] The base fabric includes at least one type of water-repellent yarn in its warp or weft yarns. The warp and weft yarns are arranged in a regular pattern, and the water-repellent yarn is concentrated on the reverse side of the fabric that comes into contact with human skin through a weaving process, while the other yarns are concentrated on the front side of the fabric, so that the fabric forms a three-dimensional structure with both sides.

[0009] Preferably, the water-repellent yarn is polypropylene yarn, water-repellent polyester yarn, or water-repellent nylon yarn.

[0010] Furthermore, the other yarns include a first yarn and a second yarn, wherein one of the first yarn and the second yarn is a PBT / PET composite elastic yarn or elastic polyester yarn, and the other is a polyester yarn with an irregular cross section or a non-elastic polyester yarn.

[0011] This invention also discloses a preparation process for a composite moisture-wicking fabric, comprising the following steps: a. Preparation of base fabric a1. Yarn Selection: Select three types of yarn, wherein the warp yarn includes a first yarn and a second yarn, and the weft yarn is a water-repellent yarn, or the warp yarn is a water-repellent yarn, and the weft yarn includes a first yarn and a second yarn. One of the first yarn and the second yarn is PBT / PET composite elastic yarn or elastic polyester yarn, and the other is shaped cross-section polyester yarn or non-elastic polyester yarn.

[0012] a2. Warping: Arranging the warp yarns evenly together to form a warp beam.

[0013] a3. Sizing: Sizing the yarn, then winding it onto a new beam to form a sized beam, and then combining them into a single weaving beam.

[0014] a4. Threading the heddles and reeds: Threading the heddles and reeds onto the warp beam.

[0015] a5. Weaving: Under the control of a computer-controlled healdrying program, the warp and weft yarns interweave according to a certain pattern on the loom. The weaving process concentrates the water-repellent yarn on the reverse side of the fabric, while the first and second yarns are concentrated on the front side. a6. Desizing: The woven fabric is desized using a desizing solution to remove the sizing and impurities from the fabric.

[0016] a7. Dyeing and setting: Dyeing and setting the fabric after desizing in step S6.

[0017] S8. Moisture-wicking finishing: The fabric after the shaping in step S7 is passed through a roller to absorb the moisture-wicking agent, and then undergoes shaping and baking. That is, the base fabric is obtained.

[0018] b. Preparation of lining fabric Following process a, a lining fabric is prepared, or moisture-absorbing polyester or moisture-absorbing nylon is prepared according to the following steps: b1. Drying: Dry the polyester or nylon chips and hydrophilic masterbatch to reduce the moisture content to below 30-50 ppm.

[0019] b2. Blending: The dried polyester or nylon chips are blended with the hydrophilic masterbatch, and the blended mixture is fed into the feed port of the extruder via pneumatic conveying or screw feeding.

[0020] b3. Extrusion: The mixture is fully melted in the extruder and extruded through the outlet of the extruder, passing through the shaped groove of the spinneret to form nascent fibers.

[0021] b4. The molten stream from the spinneret is cooled and solidified in a constant humidity and uniform speed side-blowing airflow at 20-25℃; before the fiber is completely solidified, a hydrophilic spinning oil is uniformly applied to the surface of the nascent fiber through the oil nozzle.

[0022] b5. Stretching and setting: The nascent fibers are stretched in multiple stages and then heat-set at 160-180℃ to obtain the lining.

[0023] c. Composite the base fabric with the lining fabric. The edges of the lining are at least partially sewn to the base fabric, and the portions of the lining and base fabric outside the sewn area are separated from each other to form a double-layer composite moisture-wicking fabric.

[0024] Preferably, in step b2, polyester chips or nylon chips are blended with hydrophilic masterbatch, lubricant, antistatic agent and antioxidant, and the mass parts of each component are as follows: 85-95 parts of polyester chips or nylon chips, 3-10 parts of hydrophilic masterbatch, 0.3-1 part of lubricant, 0.5-2 parts of antistatic agent and 0.2-0.5 parts of antioxidant.

[0025] The present invention also discloses a pair of trousers, including a waistband and a body, wherein the body includes at least a back panel corresponding to the buttocks of a human body; the back panel is made of the aforementioned composite moisture-wicking fabric, the outline of the lining matches the buttocks area of ​​a human body, and the upper part of the lining is fixed to the waistband.

[0026] Preferably, the upper edge of the lining is fixed to the waistband by an inner stitch, and the middle part of the lining is positioned on the longitudinal seam line of the back trouser piece and fixed to the base fabric by a ribbed stitch.

[0027] Preferably, the hem edge of the lining is made into a flat edge by using a flatbed sewing machine or laser edge melting treatment.

[0028] After adopting the above technical solution, the present invention has the following effects: 1. This invention, while ensuring the softness and moisture-wicking properties of the fabric, can avoid the overlapping texture that occurs due to friction when using a base fabric with unidirectional moisture-wicking function, thus balancing the fabric's lightness, softness, reliable moisture wicking and stability, and improving its aesthetics.

[0029] 2. This invention uses a lining made of moisture-wicking polyester or nylon, or the same unidirectional moisture-wicking fabric as the base fabric. Both the base fabric and the lining provide dual moisture-wicking properties. When used on light-colored trousers, it also prevents water stains caused by sweat evaporating from the back of the buttocks and soaking into the surface of the trousers during hot summer weather. In other words, this invention also provides a physical sweat-resistant effect.

[0030] 3. When the fabric of this invention is used in trousers, it can further reduce the cold and uncomfortable feeling on surfaces such as stainless steel seats outdoors or indoors, and improve the abrasion resistance of the back of the trousers. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the composite moisture-wicking fabric of the present invention.

[0032] Figure 2 This is a side view of the composite moisture-wicking fabric of the present invention.

[0033] Figure 3 This is a schematic diagram of the fabric structure on the reverse side of the base fabric in Example 1.

[0034] Figure 4 This is a schematic diagram of the structure of the back of the pants in Example 4.

[0035] Figure 5 This is a schematic diagram of the front of the reverse side of the pants in Example 4.

[0036] Main component symbols: 1: Base fabric, 2: Lining, 3: Sewing thread, 4: Warp yarn, 5: Weft yarn, 6: Waistband, 7: Body, 8: Longitudinal seam line, 9: Flatbed circumferential seam. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] like Figure 1As shown, this invention discloses a composite moisture-wicking fabric, comprising a base fabric 1 and a lining fabric 2. The base fabric 1 is located on the outer side, and the lining fabric 2 is located on the inner side of the base fabric 1, with the lining fabric 2 on the side in contact with human skin. The base fabric 1 is a unidirectional moisture-wicking fabric with a denier number less than 90D. A unidirectional moisture-wicking fabric is a fabric that achieves directional moisture transfer from the inside to the outside through the yarn structure and / or fabric structure design of the fiber material. The base fabric is a woven fabric formed by interlacing warp and weft yarns. The edge of the lining fabric 2 is at least partially fixed to the base fabric 1, and the fixing method can be sewing or heat pressing, etc. The portion of the lining fabric 2 separates from the base fabric 1 outside the sewn or heat-pressed area, and the denier number of the lining fabric 2 is less than or equal to that of the base fabric.

[0039] The composite moisture-wicking fabric of the present invention refers to a fabric structure formed by sewing together two independent fabric layers (i.e., base fabric and lining fabric) through a post-processing composite process, which is different from a double-layer fabric formed in one piece by weaving technology.

[0040] This invention controls the denier number of the base fabric yarn to below a specific threshold of 90D, achieving excellent softness and drape, making it particularly suitable for the close-fitting areas of clothing. Simultaneously, the dense capillary structure formed by these fine denier fibers significantly improves the efficiency and speed of unidirectional moisture wicking. Furthermore, when this lightweight base fabric is combined with a similarly lightweight lining, the total thickness of both can be precisely controlled. By ensuring that the denier number of the lining is less than or equal to that of the base fabric, unsightly overlapping and edge patterns are avoided on the garment surface. The low-denier lining conforms to the mechanical behavior of the base fabric, bending and stretching along with it, achieving a "following" rather than "dominating" effect. This is crucial for frequently moving areas such as the hips, ensuring the overall dynamic smoothness of the composite fabric. When the denier number of the lining is higher than 90D, the fabric stiffness increases, the softness against the skin decreases, and the total thickness after being combined with the base fabric easily exceeds the critical threshold for "no overlapping," resulting in undesirable localized bulges both visually and tactilely.

[0041] The unidirectional moisture-wicking fabric of this invention is primarily a physical unidirectional moisture-wicking fabric. It achieves unidirectional moisture wicking through the physical properties of the fiber material, yarn structure, and fabric structure design itself. Of course, the physical unidirectional moisture-wicking fabric can also undergo a durable waterproof (water-repellent) finishing process (such as using fluorinated compounds), while the inner surface remains or undergoes a hydrophilic finishing, thereby enhancing the unidirectional moisture-wicking effect.

[0042] The lining of this invention can be moisture-wicking polyester or moisture-wicking nylon, or a unidirectional moisture-wicking fabric of the same type as the base fabric. By setting the material of the lining to such a material, the base fabric and the lining of this invention can have a double-layer moisture-wicking effect.

[0043] Moisture-wicking polyester is made by physically or chemically modifying ordinary polyester to give it moisture-wicking capabilities. The principle of physical modification mainly involves changing the cross-sectional shape of the fiber to create microgrooves on the fiber surface (such as cross-shaped, Y-shaped, or C-shaped cross-sections). These grooves generate a strong capillary effect, rapidly adsorbing liquid water and guiding it away along the grooves. The principle of chemical modification mainly involves adding hydrophilic auxiliaries during the spinning process or performing hydrophilic treatment on the fiber surface. Adding hydrophilic auxiliaries during spinning occurs at the very upstream of fiber manufacturing, belonging to solution modification or blend spinning. Because hydrophilic auxiliaries contain a large number of hydrophilic groups in their polymeric compounds, such as polyether esters and polyvinylpyrrolidone, they are uniformly dispersed inside and on the surface of the fiber. These hydrophilic groups (such as -OH, -O-) can attract and lock in water molecules, thereby changing the chemical properties of the fiber. Hydrophilic treatment on the fiber surface is a finishing step, in which the spun fibers, yarns or woven fabrics are coated with a hydrophilic finishing agent (such as hydrophilic silicone, acrylate, etc.) through padding, coating, spraying, etc., and then dried and baked to set the shape.

[0044] Moisture-wicking nylon is made by physically or chemically modifying ordinary nylon to give it moisture-wicking capabilities. Its modification principle is similar to that of moisture-wicking polyester.

[0045] In addition, the present invention also discloses the application of composite moisture-wicking fabric in trousers.

[0046] Example 1 like Figure 1 As shown in Figure 2, this embodiment discloses a composite moisture-wicking fabric, including a base fabric 1 and a lining fabric 2.

[0047] The base fabric 1 is a unidirectional moisture-wicking fabric with a denier number less than 90D. In this embodiment, the base fabric is a 75D woven fabric. The woven fabric achieves directional moisture transfer from the inside to the outside through the yarn structure or fabric structure design of the fiber material. Specifically, the warp or weft yarns of the woven fabric include at least one type of water-repellent yarn, and the other yarns can be one or more types, preferably hydrophilic or moisture-wicking yarns. The warp and weft yarns are arranged in a regular pattern, and through the weaving process, the water-repellent yarn is concentrated on the reverse side of the fabric that comes into contact with human skin, while the other yarns are concentrated on the front side of the fabric, creating a three-dimensional structure with both sides.

[0048] Water-repellent yarn is made of polypropylene, water-repellent polyester, or water-repellent nylon. Water-repellent yarn does not absorb water but wicks it away: it quickly wicks away sweat from the skin's surface in liquid form to the outer layer of the fabric for evaporation, keeping the wearer dry.

[0049] Polypropylene yarn, also known as polypropylene yarn, does not require post-treatment coating and has natural water repellency.

[0050] Water-repellent polyester yarn is made by chemically modifying polyester to achieve water repellency. Polyester itself has some hydrophobicity, but it is not as strong as polypropylene yarn. Standard polyester can still get wet under prolonged or high-pressure water conditions. Modification usually refers to two methods: one is in-solution modification: before spinning, water-repellent additives (such as fluorinated compounds, organosilicon, etc.) are mixed into the polyester melt to give the fiber lasting water repellency from the inside out. The second is through finishing: the spun polyester yarn or fabric is impregnated with a water-repellent agent.

[0051] Water-repellent nylon yarn is made by chemically modifying polyester to achieve water repellency. Nylon is a polar material, and its amide bonds readily form hydrogen bonds with water molecules. Therefore, nylon itself has good hygroscopicity. Thus, to make nylon yarn water-repellent, it must undergo modification. There are two ways to modify it: one is to add water-repellent masterbatch during the spinning stage, and the other is through finishing processes, coating the nylon surface with a water-repellent agent (such as polyurethane coating or fluorinated finishing agent) to form a coating.

[0052] like Figure 3 As shown, in this embodiment, the woven fabric is designed as a twill weave, and the process steps for preparing the base fabric are as follows: a1. Yarn selection: Select three types of yarn, where the warp yarn includes the first yarn and the second yarn, and the weft yarn is polypropylene yarn, or the warp yarn is polypropylene yarn, and the weft yarn includes the first yarn and the second yarn.

[0053] One of the first yarn and the second yarn is a PBT / PET composite elastic yarn or elastic polyester yarn, and the other is a shaped cross-section polyester yarn or non-elastic polyester yarn.

[0054] The materials for the first yarn, the second yarn, and the water-repellent yarn can be selected as shown in Table 1 below.

[0055] Table 1. Material Selection for Three Types of Yarns

[0056] PBT / PET composite elastic yarn is an excellent elastic fiber. It is formed by extruding two polymers (PBT and PET) side-by-side from the same spinneret to form a single filament. During subsequent processing, this filament undergoes a permanent three-dimensional helical crimp due to the different shrinkage properties of the two components, thus possessing excellent elasticity.

[0057] Shaped cross-section polyester yarn differs from traditional round cross-section polyester yarn. Shaped yarn is produced by changing the holes on the spinneret to special non-circular shapes (such as triangles, crosses, Y-shapes, flat shapes, hollow shapes, etc.), and the cross-section of the spun fibers will correspondingly become these special shapes.

[0058] Elastic polyester yarn refers to polyester yarn that has been given significant, recoverable elasticity through physical or chemical methods, with an elongation rate between 15% and 50%. Elastic polyester yarn has a more fluffy structure and better breathability. Non-elastic polyester yarn, on the other hand, is spun from ordinary polyester staple fibers or filaments, with an elongation rate of <10%. Non-elastic polyester yarn has high strength, good shape retention, and is crisp and wrinkle-resistant. Different yarn choices are based on different application scenarios. In fabric development, designers select yarn materials according to the specific needs of the end product, thereby weaving fabrics that combine performance and aesthetics.

[0059] a2. Warping: Arranging the warp yarns evenly together to form a warp beam.

[0060] a3. Sizing: Sizing the yarn, then winding it onto a new beam to form a sized beam, and then combining them into a single weaving beam.

[0061] a4. Threading the heddles and reeds: Threading the heddles and reeds onto the warp beam.

[0062] a5. Weaving: Under the control of the computer healdrying program, the loom makes the warp and weft yarns interweave with each other according to a certain pattern, so that the polypropylene yarn is concentrated on the reverse side of the fabric, and the first yarn and the second yarn are concentrated on the front side of the fabric.

[0063] a6. Desizing: The woven fabric is desized using a desizing solution to remove the sizing and impurities from the fabric.

[0064] a7. Dyeing and setting: Dyeing and setting the fabric after desizing in step S6.

[0065] a8. Moisture-wicking finishing: After the fabric in step S7 is shaped, it absorbs the moisture-wicking agent through a roller groove, and then undergoes shaping and baking to obtain the base fabric 1.

[0066] Lining 2 is made of 50D / 32F moisture-absorbing polyester.

[0067] The preparation steps for moisture-absorbing polyester are as follows: b1. Drying: Dry the polyester or nylon chips and hydrophilic masterbatch to reduce the moisture content to below 30-50 ppm.

[0068] b2. Blending: The dried polyester chips are blended with hydrophilic masterbatch, lubricant, antistatic agent, and antioxidant. The mass proportions of each component are as follows: 85-95 portions of polyester chips were selected, using 50D / 32F polyester chips.

[0069] 3 to 10 parts of hydrophilic masterbatch, which is a derivative of polyethylene glycol, such as PEG-PET block copolymer or quaternary ammonium salt polymer.

[0070] Lubricant 0.3 to 1 part, the lubricant is glyceryl monostearate, palmitate or stearic acid.

[0071] 0.5 to 2 parts of antistatic agent, which is polyethylene glycol fatty acid ester, betaine-type amphoteric surfactant, such as dodecyl betaine.

[0072] 0.2 to 0.5 parts of antioxidant, which is a hindered phenolic antioxidant.

[0073] The blended mixture is fed into the extruder feed inlet via pneumatic conveying or screw feeding.

[0074] b3. Extrusion: The mixture is fully melted in the extruder. The temperature of the extruder gradually increases from the feed section to the discharge section, so that the mixture is fully melted. The extruder applies strong shear force and mixing action to the melt, so that the hydrophilic masterbatch is evenly dispersed in the PET continuous phase and extruded through the extruder outlet. It is then extruded through the shaped groove of the spinneret to form nascent fibers.

[0075] b4. The molten stream from the spinneret is cooled and solidified in a constant humidity and uniform speed side-blowing airflow at 20-25℃; before the fiber is completely solidified, a hydrophilic spinning oil is uniformly applied to the surface of the nascent fiber through the oil nozzle.

[0076] b5. Stretching and setting: The nascent fibers are stretched in multiple stages (total stretching ratio of 3-4 times) and then heat-set at 160-180℃ to obtain the lining.

[0077] like Figure 2 As shown, the upper edge of the lining 2 is fixed to the base fabric 1 by sewing thread 3, and the base fabric 1 and the lining 2 are separated from each other outside the area of ​​the sewing thread 3. The lining is laminated onto the base fabric to form the composite moisture-wicking fabric of the present invention.

[0078] Example 2 This embodiment discloses a composite moisture-wicking fabric. The base fabric 1 in this embodiment is the same as in Embodiment 1, and the lining 2 is made of the same unidirectional moisture-wicking knitted fabric as the base fabric. The upper edge of the lining 2 is fixed to the base fabric 1 by sewing thread 3, and the base fabric 1 and the lining 2 are separated from each other outside the area of ​​the sewing thread 3. The lining is laminated onto the base fabric to form the composite moisture-wicking fabric of this invention.

[0079] Example 3 This embodiment discloses a composite moisture-wicking fabric. The base fabric 1 in this embodiment is the same as in Embodiment 1, and the lining fabric 2 is made of moisture-wicking nylon. The upper edge of the lining fabric 2 is fixed to the base fabric 1 by sewing thread 3, and the base fabric 1 and the lining fabric 2 are separated from each other outside the area of ​​the sewing thread 3. The lining fabric is laminated onto the base fabric to form the composite moisture-wicking fabric of this invention.

[0080] Example 4 like Figure 4 , 5 As shown, this embodiment discloses a pair of trousers, which includes a waistband 6 and a body 7, the body 7 including at least a back panel corresponding to the buttocks of a human body. Figure 4 , 5 In the diagram, Z represents the front of the pants, and F represents the back. The diagram illustrates the pants being turned inside out. The back panel uses a composite moisture-wicking fabric as described in Embodiment 1, 2, or 3. The upper edge of the lining 2 is fixed to the waistband via an inner stitch. The center of the lining 2 is positioned on the longitudinal seam line 8 of the back panel and is fixed to the base fabric 1 via a ribbed seam. In actual processing, when sewing the back panel of the pants, the lining 2 and base fabric 1 are overlapped and accurately aligned with the longitudinal seam line 8 of the back panel before being fed together into an overlock sewing machine for stitching, forming a strong and flat composite seam. Hiding and reinforcing the center fixing point of the lining 2 within the inherent longitudinal seam line 8 of the pants' hip area prevents the lining 2 from shifting, eliminates the need for additional stitching, and results in a clean appearance and comfortable wear. Figure 5 As shown, the two sides of the lining 2 can be partially bent to the front of the pants, but are not connected to the front panel of the pants.

[0081] The hem edge of lining 2 is finished with a flat sewing machine 9 or laser edge welding to create a smooth edge. The purpose of the flat sewing machine 9 or laser edge welding is to "thin" or "smooth" the edge of the single layer of lining 2. The edge will not have a stiff or raised step due to the superposition of two layers of fabric, thus avoiding pressure marks or foreign body sensation when the body sits down, and improving wearing comfort.

[0082] When the pants of this invention are actually worn by the human body, they can avoid the wrinkles and creases that occur on the buttocks due to prolonged sitting. Whether it is the back draping process or the traditional ribbed center seam process, the double-layer structure can prevent the wearer from bending over due to the shaping effect of the double-layer structure, avoiding the problem of the buttocks being pinched by the single-layer fabric. In addition, the lining is made of moisture-absorbing polyester, moisture-absorbing nylon or the same fabric, which has a double moisture-absorbing effect and physical sweat-proof effect. At the same time, it makes the back of the pants resistant to cold and abrasion.

[0083] The above description is merely a preferred embodiment of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A composite moisture-wicking fabric, characterized in that, include: A base fabric, wherein the base fabric is a unidirectional moisture-wicking fabric with a denier number of less than 90D, wherein the unidirectional moisture-wicking fabric is a fabric that achieves directional transfer of moisture from the inside to the outside through the yarn structure and / or fabric structure design of the fiber material; the base fabric is a woven fabric formed by the interlacing of warp and weft yarns. A lining, located inside the base fabric and in contact with human skin, wherein the edge of the lining is at least partially fixed to the base fabric, and the portions of the lining and the base fabric outside the fixed area are separated from each other; the denier number of the lining is less than or equal to that of the base fabric.

2. The composite moisture-wicking fabric as described in claim 1, characterized in that: The lining is made of moisture-wicking polyester, moisture-wicking nylon, or the same unidirectional moisture-wicking fabric as the base fabric.

3. The composite moisture-wicking fabric as described in claim 1, characterized in that: The base fabric warp or weft yarns include at least one type of water-repellent yarn. The warp and weft yarns are arranged in a regular pattern, and the water-repellent yarn is concentrated on the reverse side of the fabric that comes into contact with human skin through a weaving process, while the other yarns are concentrated on the front side of the fabric, so that the fabric forms a three-dimensional structure with both sides.

4. The composite moisture-wicking fabric as described in claim 3, characterized in that: The water-repellent yarn is polypropylene yarn, water-repellent polyester yarn, or water-repellent nylon yarn, and the other yarns are hydrophilic or moisture-wicking yarns.

5. The composite moisture-wicking fabric as described in claim 3, characterized in that: The other yarns include a first yarn and a second yarn, wherein one of the first yarn and the second yarn is a PBT / PET composite elastic yarn or elastic polyester yarn, and the other is a shaped cross-section polyester yarn or non-elastic polyester yarn.

6. A preparation process for a composite moisture-wicking fabric, characterized in that, Includes the following steps: a. Preparation of base fabric a1. Yarn selection: Select three types of yarn, wherein the warp yarn includes a first yarn and a second yarn, and the weft yarn is a water-repellent yarn, or the warp yarn is a water-repellent yarn, and the weft yarn includes a first yarn and a second yarn; one of the first yarn and the second yarn is PBT / PET composite elastic yarn or elastic polyester yarn, and the other is shaped cross section polyester yarn or non-elastic polyester yarn; a2. Warping: Arranging the warp yarns evenly together to form a warp beam; a3. Sizing: Sizing the yarn, then winding it onto a new beam to form a sized beam, and then combining them into a single weaving beam; a4. Threading the heddles and reed: Threading the heddles and reed onto the warp beam; a5. Weaving: Under the control of a computer-controlled healdrying program, the warp and weft yarns interweave according to a certain pattern on the loom. The weaving process concentrates the water-repellent yarn on the reverse side of the fabric, while the first and second yarns are concentrated on the front side. a6. Desizing: The woven fabric is desized with a desizing solution to remove the sizing and impurities from the fabric. a7. Dyeing and setting: Dyeing and setting the fabric after desizing in step S6; a8. Moisture-wicking finishing: After the fabric has been shaped in step S7, it is passed through a roller to absorb the moisture-wicking agent, and then it is shaped and baked. That is, the base fabric is obtained; b. Preparation of lining fabric Following process a, a lining fabric is prepared, or moisture-absorbing polyester or moisture-absorbing nylon is prepared according to the following steps: b1. Drying: Dry the polyester or nylon chips and hydrophilic masterbatch to reduce the moisture content to below 30-50 ppm; b2. Blending: The dried polyester or nylon chips are blended with the hydrophilic masterbatch, and the blended mixture is fed into the feed port of the extruder by pneumatic conveying or screw feeding. b3. Extrusion: The mixture is fully melted in the extruder and extruded through the extruder outlet, passing through the shaped groove of the spinneret to form nascent fibers; b4. The molten stream from the spinneret is cooled and solidified in a constant humidity and uniform speed side-blowing airflow at 20-25℃; before the fiber is completely solidified, a hydrophilic spinning oil is uniformly applied to the surface of the nascent fiber through an oil nozzle. b5. Stretching and setting: The nascent fibers are stretched in multiple stages and then heat-set at 160-180℃ to obtain the lining. c. Composite the base fabric with the lining fabric. The edges of the lining are at least partially sewn to the base fabric, and the portions of the lining and base fabric outside the sewn area are separated from each other to form a double-layer composite moisture-wicking fabric.

7. The preparation process of the composite moisture-wicking fabric as described in claim 6, characterized in that, In step b2, polyester or nylon chips are blended with hydrophilic masterbatch, lubricant, antistatic agent, and antioxidant. The mass fractions of each component are as follows: 85-95 parts of polyester or nylon chips 3-10 parts of hydrophilic masterbatch Lubricant 0.3 to 1 part Antistatic agent 0.5-2 parts Antioxidant 0.2 to 0.5 parts.

8. A type of trousers, characterized in that: Including the waistband and the body of the pants, characterized in that: The trousers body includes at least a back panel corresponding to the human buttocks; the back panel is made using the composite moisture-wicking fabric as described in any one of claims 1 to 5 or the composite moisture-wicking fabric as described in claim 6 or 7, the outline of the lining matches the human buttocks area, and the upper part of the lining is fixed to the waistband.

9. The trousers as described in claim 8, characterized in that: The upper edge of the lining is fixed to the waistband by an inner stitch, and the middle part of the lining is positioned on the longitudinal seam line of the back trouser piece and fixed to the base fabric by a ribbed seam.

10. The trousers as described in claim 8 or 9, characterized in that: The hem edge of the lining is made into a flat edge by using a flatbed sewing machine or laser edge melting.

Images