Moisture-absorbing and quick-drying fabric and preparation process

Abstract

The invention belongs to the technical field of textile preparation, and particularly relates to a moisture-absorbing and quick-drying fabric and a preparation process thereof.The moisture-absorbing and quick-drying fabric comprises an outer layer and a middle layer, the outer layer is composed of slub cotton yarn, phase-change material microcapsules are attached to the fiber surface of the outer layer, and the middle layer is composed of hydrophilic modified polyester fiber, is of a net-shaped tissue structure and forms a continuous moisture guiding channel network; and the inner layer is made of superfine polyester yarns. According to the moisture-absorbing and quick-drying fabric and the preparation process, a three-layer integrated structure composed of the slub cotton yarn outer layer, the hydrophilic modified terylene net-shaped middle layer and the superfine terylene laser etching inner layer is arranged, and the moisture-absorbing and quick-drying fabric is formed by means of a three-dimensional moisture guiding channel formed by penetrating yarns and the gradient density design from sparse to dense; according to the fabric body, systematization and efficient collaboration of the moisture management function are achieved, meanwhile, the layers are locally combined through the low-melting-point fibers, and on the premise that the structural firmness and durability are guaranteed, independent pores and moisture guiding channels of all the functional layers are completely reserved.

Description

Technical Field

[0001] This invention relates to the field of textile manufacturing technology, and in particular to a moisture-wicking and quick-drying fabric and its manufacturing process. Background Technology

[0002] Moisture-wicking and quick-drying fabrics refer to a type of functional textile that uses specific fiber materials, fabric structures, or finishing techniques to quickly absorb human sweat, rapidly transfer sweat from the skin surface to the outer surface of the fabric, and accelerate sweat evaporation. Its fundamental purpose is to reduce the dampness and stickiness on the skin surface when the human body sweats during exercise, and to maintain a dry and comfortable microclimate. It is widely used in sportswear, outdoor equipment, underwear, and everyday casual wear.

[0003] Traditional moisture-wicking and quick-drying fabrics often use a single material or simple blends. While they possess a certain ability to absorb and wick away moisture, they often face bottlenecks in areas such as instantaneous moisture absorption, rapid moisture wicking, uniform diffusion, and efficient evaporation, making it difficult to maintain dryness and comfort in dynamic wearing environments. Furthermore, most fabrics have limitations in terms of temperature regulation, structural integration, and functional durability. For example, traditional fabrics often employ padding finishing, which is energy-intensive, results in a stiff feel, and allows functional agents to easily penetrate into non-target layers. Multi-layered fabrics often use post-composite processes, which can easily clog moisture-wicking channels, affecting breathability and comfort. Additionally, functional finishing processes are not precise enough to achieve single-sided, partial, or gradient functional designs. Therefore, this invention addresses the shortcomings of the aforementioned technologies. Summary of the Invention

[0004] Based on the aforementioned technical problems, this invention proposes a moisture-wicking and quick-drying fabric and its preparation process.

[0005] This invention proposes a moisture-wicking and quick-drying fabric, the moisture-wicking and quick-drying fabric comprising:

[0006] The outer layer is made of slub cotton yarn, and the surface has an irregular textured structure formed naturally by the slub yarn. The outer layer fiber surface is attached with phase change material microcapsules with a particle size of 5-30 micrometers and a coverage rate of 5%-20%, which are used to absorb and release heat when the temperature changes.

[0007] The middle layer is composed of hydrophilic modified polyester fibers, which have a mesh structure and form a continuous moisture-wicking channel network.

[0008] The inner layer is made of ultra-fine polyester filaments. The surface of the inner layer is hydrophilically treated and has a contact angle of ≤40°. The surface of the inner layer has micron-level moisture-wicking grooves formed by laser etching. The grooves are 10-100 microns wide and 20-200 microns deep, and are arranged radially.

[0009] The outer layer, middle layer, and inner layer are interwoven to form an integrated structure, and some yarns of the middle layer penetrate the inner and outer layers to form a three-dimensional moisture-wicking channel.

[0010] The fiber density of the fabric increases in a gradient from the outer layer to the inner layer, and local bonding points are formed between the layers by low-melting-point composite fibers.

[0011] Preferably, the step of attaching phase change material microcapsules to the fiber surface includes:

[0012] Step 1: Mix phase change material microcapsules, hydrophilic binder, foaming agent, and necessary additives with water in a specified ratio, and then use a dynamic foaming device to produce foam with a density of 0.10-0.30 g / cm³. 3 A stable foam finishing solution with uniform bubble diameter and a half-life of not less than 5 minutes, wherein the effective concentration of microcapsules in the finishing solution is 40-100 g / L, and the foaming agent is one or more of anionic or nonionic surfactants.

[0013] Step 2: Apply the foam finishing liquid to the outer surface of the fabric using a slit applicator at a roll-on rate of 30-50%. During the application process, control the foam viscosity, application pressure, and fabric conveying speed to ensure that the foam breaks in a controlled manner when it contacts the fabric surface, releasing the finishing liquid and ensuring that the microcapsules are mainly concentrated on the surface and shallow gaps of the outer fibers.

[0014] Step 3: Immediately after applying the foam, subject the fabric to infrared irradiation treatment at an intensity of 2-5 kW / m². 2 The process takes 30-90 seconds. Infrared energy causes the broken finishing liquid to quickly penetrate into the slub cotton yarn fibers, while simultaneously initiating the initial cross-linking of the adhesive, thus achieving the initial positioning of the microcapsules.

[0015] Step 4: The infrared-treated fabric is sent into the drying room for drying and curing. The drying temperature is 100-120℃ for 1-2 minutes, followed by baking and curing at 140-160℃ for 2-4 minutes to fully cross-link the adhesive and permanently and firmly attach the phase change material microcapsules to the outer fiber surface, with the coverage rate controlled at 5%-20%.

[0016] Through the above technical solution, in order to accurately and firmly apply phase change microcapsules to the outer layer of the fabric while saving energy and water and maintaining the fabric's excellent hand feel, the finishing liquid is first transformed into a stable foam with low water content using dynamic foaming technology. This foam is then applied to the outer layer of the fabric in a controlled manner via a slit applicator and ruptures. Due to its low liquid content, the microcapsules are forced to reside mainly on the fiber surface. Subsequently, infrared irradiation is immediately applied, using its penetrating heat energy to promote the rapid penetration of the liquid into the fiber and trigger the pre-crosslinking of the adhesive, thus achieving the initial anchoring of the microcapsules. Finally, the adhesive is completely cured through a gradient heating drying process. This process ensures a high surface enrichment rate of the microcapsules to optimize heat exchange, while achieving a balance between functional durability and fabric softness.

[0017] The present invention proposes a process for preparing a moisture-wicking and quick-drying fabric, comprising the following steps:

[0018] S1. Yarn preparation and pretreatment:

[0019] S11, Outer Yarn: 30S-40S combed cotton slub yarn is selected, with a slub length of 5-15mm and a pitch of 20-50mm. The cotton fibers are pre-treated with hydrophilicity to improve initial moisture absorption.

[0020] S12, Intermediate layer yarn: Hydrophilic modified polyester filament with a fineness of 50D-100D.

[0021] S13. Inner layer yarn: Selected ultra-fine denier polyester yarn with a single filament fineness of 0.5-1.2 dtex, and subjected to hydrophilic finishing to make its contact angle ≤40°.

[0022] S14. Connecting yarn: Prepare low-melting-point composite fibers for interlayer thermal fusion bonding.

[0023] S2, Gradient Weaving and Structural Forming:

[0024] S21. Loom configuration: A double-shed jacquard loom is adopted to achieve three-layer synchronous weaving.

[0025] S22. Structure Design: The outer layer is based on plain weave, using slub yarn to form a natural undulation. The middle layer is mainly based on mesh weave, with yarn spacing of 0.5-2mm, forming a continuous moisture-wicking network. The inner layer uses high-density plain weave to ensure a smooth surface. Then, through weft insertion and splicing processes, the hydrophilic modified polyester yarn of the middle layer is interwoven with the yarns of the outer and inner layers according to a preset pattern, forming a vertically penetrating moisture-wicking bridge.

[0026] S23. By controlling the warp and weft density, the outer layer density is 150-250 threads / inch and the inner layer density is 250-400 threads / inch, forming a gradient from sparse to dense.

[0027] S3. Pre-treatment of the fabric:

[0028] S31. Desizing, scouring and bleaching the woven fabric to remove oils, sizing agents and impurities from the spinning and weaving process.

[0029] S32. Perform pre-conditioning at a temperature of 170-190℃ for 30-60 seconds to stabilize the fabric size and structure.

[0030] S4. Post-function cleanup:

[0031] S41. Outer layer microcapsule finishing: Prepare a finishing solution containing phase change material microcapsules, apply the finishing solution to the outer layer of the fabric using a single-sided application process, and then perform a fixation treatment to make the microcapsules permanently adhere to the surface of the outer fiber layer.

[0032] S42. Inner layer laser etching moisture-wicking trenches: Using a carbon dioxide laser etching machine, a radial micro-groove network is designed on the inner layer according to ergonomics. The laser power, frequency and scanning speed are set to control the trench width to 10-100 micrometers and the depth to 20-200 micrometers. Then the fabric is fixed on the CNC platform, with the inner layer facing the laser head, and precision etching is performed according to the preset program.

[0033] S5. Interlayer composite strengthening and final shaping:

[0034] S51, Hot-melt composite: By hot rolling between fabric layers, the woven low-melting-point composite fibers are activated to form evenly distributed local bonding points, enhancing the overall structure without blocking the moisture-wicking channels.

[0035] S52. Final setting: Under moderate tension, perform final setting at 160-180℃ for 45-90 seconds to ensure fabric dimensional stability, soft hand feel, and durable function.

[0036] S53. Inspection and Packaging: The moisture absorption, quick-drying, breathability, durability and appearance of the fabric are tested, and the qualified products are packaged and put into storage.

[0037] To systematically prepare fabrics with multiple functions and stable structures through the above technical solutions, special yarn pretreatment, integrated gradient weaving, precise functional finishing, and reinforcement setting are sequentially integrated. First, functional pretreatment is performed on each layer of yarn to lay the foundation for subsequent performance. Then, special equipment and processes are used in the weaving stage to form a three-layer integrated fabric with through-flow moisture-wicking channels and density gradients in one go. This is the structural cornerstone for achieving efficient moisture management. Next, the fabric is functionally processed in different zones: the outer layer is first treated with single-sided microcapsules and cured, and then the inner layer is laser-etched. The order of these two processes ensures that the functions do not interfere with each other. Finally, through hot-melt bonding and final setting, the interlayer bonding is strengthened while eliminating internal stress.

[0038] Preferably, the single-sided application process in step S41 is a foam finishing process, which includes:

[0039] A slit-type foam application mechanism is used to apply foam finishing liquid to the outer layer of a fabric on one side.

[0040] The non-contact single-sided control mechanism located below the slit-type foam application mechanism is used to support the fabric and prevent the finishing liquid from penetrating into the inner layer during the foam application process.

[0041] A drying chamber is provided on one side of the non-contact single-sided control mechanism. The outlet end of the drying chamber is equipped with guide rollers and a fan. The drying chamber consists of an infrared pre-drying zone and a high-temperature baking zone. The infrared pre-drying zone uses a medium-short wave infrared radiator to irradiate the outer layer of the fabric. The high-temperature baking zone uses an independently temperature-controlled hot air circulation system. The upper air duct temperature is controlled at 140-160℃, and the lower air duct temperature is controlled at 100-120℃. The fabric travels through the drying chamber using a low-tension, suspended transport method.

[0042] To achieve single-sided, uniform, impermeable application and rapid curing of the outer microcapsules through the above technical solution, a slit-type foam application mechanism, a non-contact single-sided control mechanism, and a zoned drying chamber are sequentially integrated in terms of space and function. The slit-type foam application mechanism is responsible for generating and applying a uniform foam layer. The non-contact single-sided control mechanism below it uses a negative pressure adsorption platform and a mesh belt to provide a stable and flat non-contact support surface for the fabric in the foam application area, effectively preventing the finishing liquid from penetrating to the back side. After foam application, the fabric immediately enters the drying chamber, which consists of an infrared pre-drying zone and a high-temperature baking zone. Infrared radiation promotes penetration and pre-curing, while an independently temperature-controlled hot air system achieves differential temperature baking, focusing on heating the outer layer. The fan ensures air circulation within the drying chamber while simultaneously cooling the output fabric to stabilize its properties. Throughout the process, the fabric is transported in a low-tension, suspended manner, avoiding scratching and mechanical damage to the uncured microcapsules, thus achieving efficient and high-quality single-sided functional finishing.

[0043] Preferably, the foam finishing process further includes a dustproof box mounted on a support frame. The inlet end of the dustproof box is rotatably connected to an unwinding roller via a guide plate. The slit-type foam application mechanism includes mounting blocks that are fixedly connected to the top surface of the dustproof box at intervals. The lower surface of the mounting blocks is fixedly connected to a finishing liquid mixing tank via linearly distributed support rods. The upper surface of the finishing liquid mixing tank is fixedly connected to an inlet pipe extending to the outside of the dustproof box. The lower surface of the finishing liquid mixing tank is fixedly connected to foam generators that are distributed at intervals.

[0044] Through the above technical solution, in order to achieve continuous mixing, foaming and application of finishing liquid in a controlled environment and to provide stable support for each component, a closed working unit including a support frame and a dustproof box is constructed. The unwinding roller is placed at the inlet and is responsible for supplying the fabric. The finishing liquid mixing box of the slit-type foam application mechanism is suspended from the top of the box by a support rod, and its liquid inlet pipe is used to receive the raw materials supplied from the outside. Multiple foam generators are connected to the bottom of the mixing box and are responsible for converting the mixed finishing liquid into foam. This layout allows the foam to be applied downwards along the shortest path after it is generated, reducing the decay of foam performance. At the same time, the closed environment prevents dust contamination and is conducive to the stable control of process parameters.

[0045] Preferably, the slit-type foam application mechanism further includes slit lip plates that are arranged opposite to each other and are concave in shape on both sides of the finishing liquid mixing tank. The lower surfaces of the two ends of the two slit lip plates are respectively fixedly connected to support sliders that are arranged opposite to each other. The upper surface of the finishing liquid mixing tank is fixedly connected to a support slide rail that slides and engages with the inner surface of the corresponding support slider.

[0046] In order to achieve precise and stable adjustment of the slit width to adapt to different process requirements, the above technical solution is used to form an application slit by setting a pair of relatively movable concave slit lip plates. Each lip plate has a sliding pair formed by a support slider at both ends and a support slide rail fixed on the mixing box. When the slit width needs to be adjusted, the drive mechanism drives the two lip plates to move synchronously towards or away from each other along the slide rail, thereby changing the gap between their lower edges.

[0047] Preferably, rack rods are fixedly connected to opposite sides of the two slit lip plates, and the outer surfaces of the two rack rods of one slit lip plate are slidably engaged with the inner surface of a limiting groove opened on the opposite side of the other slit lip plate. A transmission gear meshes between the two rack rods at opposite ends, and the transmission gear is rotatably connected to the upper surface of the finishing liquid mixing tank. A transmission motor is fixedly connected to the upper surface of one of the transmission gears, and the transmission motor is fitted inside the mounting block. The lower surfaces of the two slit lip plates adjust the opening size of the foam generator.

[0048] Through the above technical solution, in order to achieve precise synchronous reverse movement of two slit lip plates using a compact drive system, a rack is installed on each lip plate, and a transmission gear meshes with the rack at the corresponding position. The rack of one lip plate is embedded in the limiting groove of the other lip plate, which serves both as a guide and prevents the lip plate from disengaging. When the drive motor drives one transmission gear to rotate, the rotational motion is converted into linear motion of the two racks in opposite directions through the simultaneous meshing of the gear with the racks on both sides. When the two racks at the other end move synchronously, they drive the corresponding transmission gear to rotate. This linkage mechanism ensures that the centerline position of the slit remains unchanged, and only the width changes, resulting in precise adjustment and high mechanical efficiency.

[0049] Preferably, the contactless single-sided control mechanism includes a contactless drag belt disposed inside the dustproof box. The contactless drag belt is a Teflon-coated glass fiber mesh belt. A negative pressure adsorption platform is disposed between the inner top surface and the inner bottom surface of the contactless drag belt. Adsorption holes are spaced apart on the upper surface of the negative pressure adsorption platform.

[0050] Through the above technical solution, in order to achieve stable and flat non-contact support for the fabric in the foam application area and generate an auxiliary force to prevent penetration, a Teflon-coated fiberglass mesh belt is used as the direct transport carrier for the fabric. Its low friction and anti-stick properties facilitate fabric sliding. A negative pressure adsorption platform is set inside the mesh belt at the bottom. The surface of the platform has dense adsorption holes. When the fan is working, a negative pressure is generated inside the platform. External air penetrates the mesh belt from top to bottom and is sucked into the adsorption holes. This vertical downward airflow adsorbs the non-contact drag belt onto the platform surface, making it taut and flat. At the same time, it provides a uniform negative pressure adsorption force for the fabric above. This force helps to lock the liquid after the foam bursts into the outer layer of the fabric and synergistically prevents it from penetrating into the interior.

[0051] Preferably, the contactless single-sided control mechanism further includes an active roller and a driven roller that respectively transmit at both ends of the contactless tow belt. Both ends of the active roller and the driven roller are fixedly sleeved with linkage bevel gears. Guide grooves are symmetrically distributed and penetrate through both sides of the dustproof box. The outer surfaces of the active roller and the driven roller are slidably engaged with the inner walls of the corresponding guide grooves. A support plate is fixedly connected to the upper surface of the support frame of the dustproof box. A key rod with a key column is rotatably connected to the upper surface of the support plate. An adjusting tube is slidably engaged with the outer surface of the key rod. Synchronous bevel gears are fixedly sleeved on the outer surface of the key rod and the outer surface of the adjusting tube, respectively.

[0052] To achieve contactless belt tensioning and allow overall adjustment of the transmission plane height to accommodate fabrics of different thicknesses or process spacing requirements, the above technical solution employs a drive roller and a driven roller to tension and drive the contactless belt. The two rollers rotate synchronously at both ends via a linkage bevel gear set. The journals at both ends of the rollers can slide up and down within guide grooves on the side wall of the dustproof housing. The height adjustment mechanism consists of a key rod, an adjusting tube, a synchronous bevel gear, a top plate, and a push cylinder. The push cylinder drives the top plate and its side plates to rise and fall. The top plate, through the adjusting tube, drives the synchronous bevel gear to move up and down along the fixed key rod. The side plates drive the two rollers to rise and fall synchronously. Simultaneously, the movement of the synchronous bevel gear, through its meshing linkage bevel gear, is converted into the synchronous rising and falling of the two ends of the drive roller and the driven roller, thereby maintaining the belt tension while adjusting the overall height of the transmission plane.

[0053] Preferably, a top plate with side plates is fixedly sleeved on the outer surface of the regulating tube; the outer surfaces of the two ends of the driving roller and the driven roller are rotatably connected to the side plate surfaces of the top plate, respectively; a push cylinder is fixedly connected to the upper surface of the support plate; the piston rod surface of the push cylinder is fixedly connected to the lower surface of the corresponding top plate; linkage cylinders are symmetrically distributed and fixedly connected to the inner bottom surface of the dustproof box; the upper surface of the piston rod of the linkage cylinder is fixedly connected to the lower surface of the extension plate of the negative pressure adsorption platform; driving bevel gears are fixedly connected to the outer surfaces of the two ends of the unwinding roller shaft; support blocks are symmetrically distributed and fixedly connected to the two side surfaces of the dustproof box; a drive shaft is rotatably connected inside the support block; drive bevel gears are fixedly sleeved at both ends of the drive shaft; the two drive bevel gears mesh with the corresponding driving bevel gear and the corresponding synchronous bevel gear on the outer surface of the key rod, respectively; a reduction motor is fixedly connected to the upper surface of the support frame of the dustproof box; and a linkage housing with a synchronous belt assembly is provided on the outer surface of the unwinding roller shaft and the outer surface of the reduction motor.

[0054] Through the above technical solution, in order to achieve preliminary mechanical synchronization of unwinding and contactless conveyor transport, and to enable independent adjustment of the height of the negative pressure adsorption platform, a bevel gear transmission chain is established: the rotation of the unwinding roller is transmitted through the active bevel gear at its shaft end to the transmission bevel gear at the other end via the transmission shaft. This bevel gear then meshes with the synchronous bevel gear on the key rod, ultimately transmitting power to the roller that drives the contactless conveyor. This mechanical linkage ensures the basic speed matching between unwinding and contactless conveyor transport. At the same time, the lifting and lowering of the negative pressure adsorption platform is directly controlled by an independent linkage cylinder, allowing it to adjust the gap with the lower surface of the contactless conveyor as needed to optimize the adsorption effect. The push cylinder and the linkage cylinder work independently, respectively responsible for adjusting the height of the transport plane and the height of the adsorption platform. The two work together to ensure the precise setting of the process conditions in the foam application area.

[0055] The beneficial effects of this invention are as follows:

[0056] 1. By setting up a three-layer integrated structure consisting of an outer layer of slub cotton yarn, a hydrophilic modified polyester mesh middle layer, and an ultra-fine polyester laser-etched inner layer, and by utilizing the three-dimensional moisture-wicking channels formed by the through-yarns and the gradient density design from sparse to dense, the fabric body of this invention achieves a systematic and efficient synergistic moisture management function. During the adjustment process, the excellent initial moisture absorption of the outer slub cotton yarn combined with the intelligent temperature regulation function of the phase change microcapsules can quickly absorb sweat and buffer body temperature changes. The mesh moisture-wicking structure of the middle layer, through the through-yarns, acts like a bridge to quickly transfer moisture. The moisture is rapidly drawn out from the outer layer. The large specific surface area of ​​the inner layer's ultra-fine fibers and the radial laser grooves greatly accelerate the lateral diffusion and evaporation of moisture. This structure physically creates an unobstructed and rapid pathway for moisture absorption, conduction, diffusion, and evaporation, significantly improving the fabric's instantaneous moisture absorption capacity, moisture migration speed, and final drying efficiency. This provides a lasting dry and comfortable experience in dynamic wearing environments. At the same time, the interlayer is locally bonded with low-melting-point fibers, ensuring structural strength and durability while fully preserving the independent pores and moisture-conducting channels of each functional layer.

[0057] 2. By setting up a phase change microcapsule attachment step based on foam finishing, including dynamic foaming, slit-type single-sided application, infrared penetration promotion, and gradient curing, precise, energy-saving, and durable application of functional materials is achieved. The core advantages of this process are: First, using foam as a carrier, its low moisture content significantly reduces drying energy consumption compared to traditional padding methods. Furthermore, due to the low moisture content, it minimizes the stiffness caused by fiber swelling and re-drying, better maintaining the original soft and fluffy feel of the fabric. Second, by controlling the stability of the foam, it can be controlled to rupture upon contact with the fabric surface, forcing microcapsules to accumulate mainly on the fiber surface and shallow gaps. This surface enrichment effect maximizes the heat exchange efficiency between the microcapsules and the external environment, improving the sensitivity and effectiveness of temperature regulation. Third, the subsequent infrared irradiation utilizes its penetrating heating to promote rapid penetration of the finishing liquid into the fiber interior and trigger pre-crosslinking of the adhesive, achieving initial anchoring of the microcapsules. Finally, the gradient heating drying-baking curing process ensures complete crosslinking of the adhesive, resulting in durable and firm adhesion of the microcapsules and excellent wash resistance.

[0058] 3. By setting up a dedicated foam finishing process and equipment that integrates a slit-type foam application mechanism, a non-contact single-sided control mechanism, and a zoned drying chamber, a reliable and efficient equipment guarantee is provided for the high-quality implementation of this invention. This equipment system brings multiple beneficial effects: First, the slit-type foam application mechanism, especially its width adjustment function, can precisely control the thickness and uniformity of the foam curtain according to different foam characteristics and process requirements, ensuring the consistency of functional finishing agent application; Second, the non-contact single-sided control mechanism adopts a combination of a negative pressure adsorption platform and a Teflon mesh belt, creating an absolutely flat, stable, and non-mechanically contactless support plane for the fabric in the foam application area. The vertical downward airflow generated by the negative pressure not only tightens the mesh belt, but also... It also helps to lock the foam liquid on the outer layer of the fabric, and synergistically prevents the functional agents from penetrating into non-target layers, truly achieving strict single-sided finishing. Its three-zone drying box design, combined with the suspended conveying method, allows infrared pre-baking to quickly provide the energy required for penetration and pre-curing; hot air baking with upper and lower temperature difference control can concentrate energy to fully cure the outer layer, while avoiding excessive heating of the inner layer. The suspended low-tension conveying effectively avoids the adhesion and scratching of uncured microcapsules on the guide rollers. Fourth, the bevel gear transmission chain between the unwinding roller and the conveying roller inside the equipment provides basic speed synchronization, while the push cylinder and linkage cylinder independently control the height of the conveying surface and the height of the adsorption platform, enabling the equipment to flexibly adapt to the adjustment needs of different fabric thicknesses and process spacing. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention;

[0060] Figure 2 This is a three-dimensional diagram of the microcapsule structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0061] Figure 3 This is a three-dimensional view of the moisture-wicking groove structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0062] Figure 4 This is a three-dimensional view of the dustproof box structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0063] Figure 5 This is a three-dimensional view of the unwinding roller structure of a moisture-absorbing and quick-drying fabric and its preparation process proposed in this invention.

[0064] Figure 6 This is a three-dimensional view of the active roller structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0065] Figure 7 This is a three-dimensional view of a non-contact drag belt structure for a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0066] Figure 8 This is a three-dimensional view of the slit lip plate structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0067] Figure 9 This is a three-dimensional view of the drive motor structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0068] Figure 10 This is a three-dimensional view of the support slide rail structure for a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0069] Figure 11 This is a three-dimensional view of the rack and pinion structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0070] Figure 12 This is a three-dimensional view of the support block structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0071] Figure 13 This is a three-dimensional view of the regulating tube structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0072] Figure 14 This is a three-dimensional view of the high-temperature baking zone structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention;

[0073] Figure 15 This is a three-dimensional view of the infrared pre-drying zone structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention;

[0074] Figure 16 This is a three-dimensional view of the negative pressure adsorption platform structure of a moisture-wicking and quick-drying fabric and its preparation process proposed in this invention.

[0075] In the diagram: 1. Outer layer; 11. Microcapsule; 2. Middle layer; 3. Inner layer; 31. Moisture-guiding groove; 4. Dustproof box; 41. Unwinding roller; 5. Slit-type foam application mechanism; 51. Mounting block; 52. Finishing liquid mixing tank; 53. Liquid inlet pipe; 54. Foam generator; 55. Slit lip plate; 56. Support slider; 57. Support slide rail; 58. Rack and pinion; 59. Transmission gear; 60. Transmission motor; 7. Non-contact single-sided control mechanism; 71. Non-contact drag belt; 72. Negative pressure adsorption platform; 73. Adsorption hole; 74. Driven roller; 75. Driven roller; 76. Linkage bevel gear; 77. Guide groove; 78. Support plate; 79. Key rod; 80. Adjusting pipe; 81. Synchronous bevel gear; 82. Top plate; 83. Push cylinder; 84. Linkage cylinder; 85. Driven bevel gear; 86. Support block; 87. Drive shaft; 88. Drive bevel gear; 89. Gear motor; 90. Linkage housing; 91. Drying oven; 92. Fan; 93. Guide roller; 94. Infrared pre-drying zone; 95. High-temperature baking zone. Detailed Implementation

[0076] 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.

[0077] Reference Figures 1-3 A moisture-wicking and quick-drying fabric, comprising:

[0078] The outer layer 1 is made of slub cotton yarn, and the surface has an irregular textured structure formed naturally by the slub yarn. The surface of the outer layer 1 fiber is attached with phase change material microcapsules 11. The microcapsules 11 have a particle size of 5-30 micrometers and an encapsulation rate of 5%-20%, which are used to absorb and release heat when the temperature changes.

[0079] The middle layer 2 is composed of hydrophilic modified polyester fibers, which have a mesh structure and form a continuous moisture-wicking channel network.

[0080] The inner layer 3 is made of ultra-fine polyester filaments. The surface of the inner layer 3 is hydrophilically treated and has a contact angle of ≤40°. The surface of the inner layer 3 has micron-level moisture-wicking grooves 31 formed by laser etching. The grooves are 10-100 microns wide and 20-200 microns deep, and are radial in shape.

[0081] The outer layer 1, middle layer 2, and inner layer 3 are interwoven to form an integrated structure. Some yarns of the middle layer 2 run through the inner and outer layers 1 to form a three-dimensional moisture-wicking channel.

[0082] The fiber density of the fabric increases in a gradient from the outer layer 1 to the inner layer 3, and local bonding points are formed between the layers by low-melting-point composite fibers.

[0083] By employing a three-layer integrated structure consisting of an outer layer of slub cotton yarn 1, a hydrophilic modified polyester mesh middle layer 2, and an ultra-fine polyester laser-etched inner layer 3, and utilizing the three-dimensional moisture-wicking channels formed by the through-yarns and the gradient density design from sparse to dense, the fabric body of this invention achieves a systematic and highly efficient synergistic moisture management function. During the adjustment process, the excellent initial moisture absorption of the outer layer 1 slub cotton yarn, combined with the intelligent temperature regulation function of the phase change microcapsules 11, can quickly absorb sweat and buffer changes in body temperature. The mesh moisture-wicking structure of the middle layer 2, through the through-yarns, acts like a bridge to transfer water... Moisture is rapidly drawn out from the outer layer 1. The large specific surface area of ​​the ultra-fine fibers in the inner layer 3 and the radial laser grooves greatly accelerate the lateral diffusion and evaporation of moisture. This structure physically creates an unobstructed and rapid pathway for moisture absorption, conduction, diffusion, and evaporation, significantly improving the fabric's instantaneous moisture absorption capacity, moisture migration speed, and final drying efficiency. This provides a lasting dry and comfortable experience in dynamic wearing environments. At the same time, the interlayer is locally bonded with low-melting-point fibers, ensuring structural strength and durability while fully preserving the independent pores and moisture-conducting channels of each functional layer.

[0084] To ensure precise, secure, and exclusive application of phase change microcapsules 11 to the outer layer 1 of the fabric while maintaining energy and water conservation and preserving the fabric's excellent hand feel, the steps for attaching phase change material microcapsules 11 to the fiber surface include:

[0085] Step 1: Mix phase change material microcapsules 11, hydrophilic binder, foaming agent, and necessary additives with water in a specified ratio, and then use a dynamic foaming device to produce foam with a density of 0.10-0.30 g / cm³. 3 A stable foam finishing solution with uniform bubble diameter and a half-life of not less than 5 minutes, wherein the effective concentration of microcapsules 11 in the finishing solution is 40-100 g / L, and the foaming agent is one or more of anionic or nonionic surfactants.

[0086] Step 2: Apply the foam finishing liquid to the outer layer 1 surface of the fabric with a slit applicator at a roll-on rate of 30-50%. During the application process, control the foam viscosity, application pressure and fabric conveying speed to ensure that the foam breaks in a controlled manner when it contacts the fabric surface, releasing the finishing liquid and ensuring that the microcapsules 11 are mainly concentrated on the surface and shallow gaps of the outer layer 1 fibers.

[0087] Step 3: Immediately after applying the foam, subject the fabric to infrared irradiation treatment at an intensity of 2-5 kW / m². 2 The process takes 30-90 seconds. Infrared energy causes the broken finishing liquid to quickly penetrate into the slub cotton yarn fibers, while simultaneously initiating the initial cross-linking of the adhesive, thus achieving the initial positioning of the microcapsule 11.

[0088] Step 4: The infrared-treated fabric is placed in a drying oven for drying and curing at a temperature of 100-120℃ for 1-2 minutes. It is then baked at 140-160℃ for 2-4 minutes to ensure complete cross-linking of the adhesive, permanently and firmly attaching the phase change material microcapsules 11 to the outer layer 1 fiber surface with a coverage rate controlled at 5%-20%. The finishing liquid is first converted into a stable foam with low water content using dynamic foaming technology. This foam is then applied to the outer layer 1 of the fabric in a controlled manner via a slit applicator and ruptures. Due to its low liquid content, the microcapsules 11 are forced to reside primarily on the fiber surface. Immediately afterwards, infrared irradiation is applied, utilizing its penetrating heat energy to rapidly penetrate the liquid into the fiber and initiate pre-cross-linking of the adhesive, achieving initial anchoring of the microcapsules 11. Finally, a gradient-heating drying process completes the full curing of the adhesive. This process ensures a high surface enrichment rate of the microcapsules 11 to optimize heat exchange, while simultaneously achieving a balance between functional durability and fabric softness.

[0089] By setting up a phase change microcapsule 11 attachment step based on foam finishing, including dynamic foaming, slit-type single-sided application, infrared infiltration promotion, and gradient curing, precise, energy-saving, and durable application of functional materials is achieved. The core advantages of this process are: firstly, using foam as a carrier, its low moisture content significantly reduces drying energy consumption compared to traditional padding methods. Furthermore, due to the low moisture content, it minimizes the stiffness caused by fiber swelling and re-drying, better preserving the original soft and fluffy feel of the fabric. Secondly, by controlling the stability of the foam, it can... Controlled rupture forces microcapsules 11 to accumulate primarily on the fiber surface and in shallow interstitial spaces. This surface enrichment effect maximizes the heat exchange efficiency between microcapsules 11 and the external environment, enhancing the sensitivity and effectiveness of the temperature regulation function. Furthermore, the subsequent infrared irradiation utilizes its penetrating heating to promote the rapid penetration of the finishing liquid into the fiber interior and trigger pre-crosslinking of the adhesive, achieving initial anchoring of microcapsules 11. Finally, a gradient temperature drying-baking curing process ensures complete crosslinking of the adhesive, enabling microcapsules 11 to achieve durable and firm adhesion with excellent wash resistance.

[0090] Reference Figures 4-16 A manufacturing process for a moisture-wicking and quick-drying fabric includes the following steps:

[0091] S1. Yarn preparation and pretreatment:

[0092] S11, Outer Layer 1 Yarn: 30S-40S combed cotton slub yarn is selected, with a slub length of 5-15mm and a pitch of 20-50mm. The cotton fibers are pre-treated with hydrophilicity to improve initial moisture absorption.

[0093] S12, Intermediate Layer 2 Yarn: Hydrophilic modified polyester filament with a fineness of 50D-100D.

[0094] S13, Inner Layer 3 Yarn: Selected ultra-fine denier polyester yarn, with a single filament fineness of 0.5-1.2 dtex, and subjected to hydrophilic finishing to make its contact angle ≤40°.

[0095] S14. Connecting yarn: Prepare low-melting-point composite fibers for interlayer thermal fusion bonding.

[0096] S2, Gradient Weaving and Structural Forming:

[0097] S21. Loom configuration: A double-shed jacquard loom is adopted to achieve three-layer synchronous weaving.

[0098] S22. Structure Design: The outer layer 1 is based on plain weave, using slub yarn to form a natural undulation. The middle layer 2 is mainly based on mesh weave, with yarn spacing of 0.5-2mm, forming a continuous moisture-wicking network. The inner layer 3 adopts high-density plain weave to ensure a smooth surface. Then, through weft insertion and splicing processes, the hydrophilic modified polyester yarn of the middle layer 2 is interwoven with the yarns of the outer layer 1 and the inner layer 3 according to a preset pattern, forming a vertically penetrating moisture-wicking bridge.

[0099] S23. By controlling the warp and weft density, the outer layer 1 has a density of 150-250 threads / inch, and the inner layer 3 has a density of 250-400 threads / inch, forming a gradient from sparse to dense.

[0100] S3. Pre-treatment of the fabric:

[0101] S31. Desizing, scouring and bleaching the woven fabric to remove oils, sizing agents and impurities from the spinning and weaving process.

[0102] S32. Perform pre-conditioning at a temperature of 170-190℃ for 30-60 seconds to stabilize the fabric size and structure.

[0103] S4. Post-function cleanup:

[0104] S41, Outer layer 1 microcapsule 11 finishing: Prepare a finishing solution containing phase change material microcapsules 11, apply the finishing solution to the outer layer 1 of the fabric using a single-sided application process, and then perform a fixation treatment to make the microcapsules 11 permanently adhere to the fiber surface of the outer layer 1.

[0105] S42, Inner Layer 3 Laser Etching Moisture-Guiding Trench 31: Using a carbon dioxide laser etching machine, a radial micro-groove network is designed on the inner layer 3 sides according to ergonomics. The laser power, frequency and scanning speed are set to control the groove width to 10-100 micrometers and the depth to 20-200 micrometers. Then the fabric is fixed on the CNC platform so that the inner layer 3 sides face the laser head, and precision etching is performed according to the preset program.

[0106] S5. Interlayer composite strengthening and final shaping:

[0107] S51, Hot-melt composite: By hot rolling between fabric layers, the woven low-melting-point composite fibers are activated to form evenly distributed local bonding points, enhancing the overall structure without blocking the moisture-wicking channels.

[0108] S52. Final setting: Under moderate tension, perform final setting at 160-180℃ for 45-90 seconds to ensure fabric dimensional stability, soft hand feel, and durable function.

[0109] S53. Inspection and Packaging: The moisture absorption, quick-drying, breathability, durability and appearance of the fabric are tested, and the qualified products are packaged and put into storage.

[0110] By sequentially integrating special yarn pretreatment, integrated gradient weaving, precise functional finishing, and enhanced setting, the yarn layers are first functionally pretreated to lay the foundation for subsequent performance. Then, special equipment and processes are used in the weaving process to form a three-layer integrated fabric with through-flow moisture-wicking channels and density gradients in one go. This is the structural cornerstone for achieving efficient moisture management. Next, the fabric is functionally finished in different zones: the outer layer 1 is first treated with single-sided microcapsules 11 and cured, and then the inner layer 3 is laser-etched. The order of these two processes ensures that the functions do not interfere with each other. Finally, through hot-melt bonding and final setting, the interlayer bonding is strengthened while eliminating internal stress.

[0111] To achieve single-sided, uniform, impermeable application and rapid curing of the outer layer microcapsule 11, the single-sided application process in step S41 is a foam finishing process, which includes:

[0112] The slit-type foam application mechanism 5 is used to apply foam finishing liquid to the outer layer 1 of the fabric on one side.

[0113] The non-contact single-sided control mechanism 7, located below the slit-type foam application mechanism 5, is used to support the fabric and prevent the finishing liquid from penetrating into the inner layer 3 during the foam application process.

[0114] The drying chamber 91 is located on one side of the non-contact single-sided control mechanism 7. The outlet end of the drying chamber 91 is equipped with a guide roller 93 and a fan 92. The drying chamber 91 consists of an infrared pre-drying zone 94 and a high-temperature baking zone 95. The infrared pre-drying zone 94 uses a medium-short wave infrared radiator to irradiate the outer layer 1 of the fabric. The high-temperature baking zone 95 uses an independently temperature-controlled hot air circulation system, with the upper air duct temperature controlled at 140-160℃ and the lower air duct temperature controlled at 100-120℃. The fabric travels through the drying chamber 91 using a low-tension, suspended transport method. By sequentially integrating the slit-type foam application mechanism 5, the non-contact single-sided control mechanism 7, and the zoned drying chamber 91 in terms of space and function, the slit-type foam application mechanism 5 is responsible for... A uniformly applied foam layer is formed, and the non-contact single-sided control mechanism 7 below it uses a negative pressure adsorption platform 72 and a mesh belt to provide a stable and flat non-contact support surface for the fabric in the foam application area, effectively preventing the finishing liquid from penetrating to the back side. After the foam is applied, the fabric immediately enters the drying chamber 91, which consists of an infrared pre-drying zone 94 and a high-temperature baking zone 95. Infrared radiation promotes penetration and pre-curing, and the hot air system with independent temperature control at the top and bottom achieves differential temperature baking, focusing on heating the outer layer 1. The fan 92 can not only ensure the air circulation in the drying chamber 91, but also cool down the output fabric to stabilize its properties. Throughout the process, the fabric is transported in a low-tension hanging manner, avoiding scratching and mechanical damage to the uncured microcapsules 11, thereby achieving efficient and high-quality single-sided functional finishing.

[0115] To achieve continuous mixing, foaming, and application of the finishing liquid in a controlled environment and to provide stable support for each component, the foam finishing process also includes a dustproof box 4 mounted on a support frame. The inlet end of the dustproof box 4 is rotatably connected to an unwinding roller 41 via a guide plate. The slit-type foam application mechanism 5 includes mounting blocks 51 fixedly connected at intervals to the inner top surface of the dustproof box 4. The lower surface of the mounting blocks 51 is fixedly connected to a finishing liquid mixing tank 52 via linearly distributed support rods. The upper surface of the finishing liquid mixing tank 52 is fixedly connected to an inlet pipe 53 extending to the outside of the dustproof box 4. The lower surface of the finishing liquid mixing tank 52... The system is equipped with a fixed, spaced-apart foam generator 54. By constructing a closed working unit including a support frame and a dustproof box 4, the unwinding roller 41 is placed at the inlet and is responsible for supplying the fabric. The finishing liquid mixing tank 52 of the slit-type foam application mechanism 5 is suspended from the top of the box by a support rod, and its inlet pipe 53 is used to receive externally supplied raw materials. Multiple foam generators 54 are connected to the bottom of the mixing tank and are responsible for converting the mixed finishing liquid into foam. This layout allows the foam to be applied downwards along the shortest path after generation, reducing the degradation of foam performance. At the same time, the closed environment prevents dust contamination and is conducive to the stable control of process parameters.

[0116] To achieve precise and stable adjustment of the slit width to adapt to different process requirements, the slit-type foam application mechanism 5 also includes slit lip plates 55 that are arranged opposite each other and are concave in shape on both sides of the finishing liquid mixing tank 52. The lower surfaces of the two ends of the two slit lip plates 55 are respectively fixedly connected to the oppositely arranged support sliders 56. The upper surface of the finishing liquid mixing tank 52 is fixedly connected to the support slide rail 57 that slides and engages with the inner surface of the corresponding support slider 56. The application slit is formed by setting a pair of relatively movable concave slit lip plates 55. The two ends of each lip plate form a sliding pair with the support slide rail 57 fixed on the mixing tank through the support sliders 56. When it is necessary to adjust the slit width, the drive mechanism drives the two lip plates to move synchronously towards or away from each other along the slide rail, thereby changing the gap between their lower edges.

[0117] To achieve precise synchronous reverse movement of the two slit lip plates 55 using a compact drive system, rack rods 58 are fixedly connected to opposite surfaces at both ends of the two slit lip plates 55. The outer surfaces of the two rack rods 58 of one slit lip plate 55 are slidably engaged with the inner surface of a limiting groove on the opposite surface of the other slit lip plate 55. A transmission gear 59 meshes between the two opposing rack rods 58, and the transmission gear 59 is rotatably connected to the upper surface of the finishing liquid mixing tank 52. A transmission motor 60 is fixedly connected to the upper surface of one of the transmission gears 59, and the transmission motor 60 is fitted inside the mounting block 51. The lower surfaces of the two slit lip plates 55 are aligned with the foam generator. The opening size of 54 is adjusted by setting rack rods 58 on each lip plate and setting transmission gears 59 that mesh with the rack rods 58 at corresponding positions. The rack rod 58 of one lip plate is embedded in the limiting groove of the other lip plate, which serves both as a guide and to prevent the lip plate from disengaging. When the transmission motor 60 drives one transmission gear 59 to rotate, the rotational motion is converted into linear motion of the two rack rods 58 in opposite directions by the simultaneous meshing of the gear with the racks on both sides. When the two rack rods 58 at the other end move synchronously, they drive the corresponding transmission gears 59 to rotate. This linkage mechanism ensures that the center line position of the slit remains unchanged, and only the width changes, resulting in precise adjustment and high mechanical efficiency.

[0118] To achieve stable and smooth non-contact support for the fabric in the foam application area and generate an auxiliary force to prevent penetration, the non-contact single-sided control mechanism 7 includes a non-contact drag belt 71 installed inside the dustproof housing 4. The non-contact drag belt 71 is a Teflon-coated fiberglass mesh belt. A negative pressure adsorption platform 72 is provided between the inner top surface and the inner bottom surface of the non-contact drag belt 71. Adsorption holes 73 are spaced apart on the upper surface of the negative pressure adsorption platform 72. By using the Teflon-coated fiberglass mesh belt as the direct transport carrier for the fabric, its... The low friction and anti-stick properties facilitate fabric gliding. A negative pressure adsorption platform 72 is set at the bottom inside the mesh belt. The surface of the platform has dense adsorption holes 73. When the fan 92 works, a negative pressure is generated inside the platform. External air penetrates the mesh belt from top to bottom and is sucked into the adsorption holes 73. This vertical downward airflow adsorbs the non-contact drag belt 71 onto the platform surface, making it taut and flat. At the same time, it provides a uniform negative pressure adsorption force for the fabric above. This force helps to lock the liquid after the foam bursts into the outer layer 1 of the fabric and prevents it from penetrating into the interior.

[0119] To achieve tensioning of the contactless conveyor belt 71 and allow overall adjustment of its transmission plane height to accommodate fabrics of different thicknesses or process spacing requirements, the contactless single-sided control mechanism 7 also includes an active roller 74 and a driven roller 75 that respectively transmit at both ends of the contactless conveyor belt 71. Both ends of the active roller 74 and the driven roller 75 are fixedly sleeved with a linkage bevel gear 76. Guide grooves 77 are symmetrically distributed and penetrate both sides of the dustproof housing 4. The outer surfaces of the active roller 74 and the driven roller 75 are slidably engaged with the inner walls of the corresponding guide grooves 77. A support plate 78 is fixedly connected to the upper surface of the support frame of the dustproof housing 4. A key rod 79 with a key column is rotatably connected to the upper surface of the support plate 78. An adjusting tube 80 is slidably engaged with the outer surface of the key rod 79. Synchronous bevel gears are fixedly sleeved on the outer surfaces of the key rod 79 and the adjusting tube 80, respectively. 81. The non-contact conveyor belt 71 is tensioned and driven by setting an active roller 74 and a driven roller 75. The two rollers rotate synchronously at both ends through a set of linkage bevel gears 76. The journals at both ends of the rollers can slide up and down in the guide grooves 77 on the side wall of the dustproof box 4. The height adjustment actuator consists of a key rod 79, an adjusting pipe 80, a synchronous bevel gear 81, a top plate 82, and a push cylinder 83. The push cylinder 83 drives the top plate 82 and the side plate of the top plate 82 to rise and fall. The top plate 82 drives the synchronous bevel gear 81 to move up and down along the fixed key rod 79 through the adjusting pipe 80. The side plate drives the two rollers to rise and fall synchronously. At the same time, the movement of the synchronous bevel gear 81 is converted into the synchronous rise and fall of the two ends of the active roller 74 and the driven roller 75 through the linkage bevel gear 76 meshing with it, thereby adjusting the overall height of its transmission plane while maintaining the tension of the conveyor belt.

[0120] To achieve preliminary mechanical synchronization of unwinding and non-contact conveying 71, and to enable independent adjustment of the height of the negative pressure adsorption platform 72, a top plate 82 with side plates is fixedly sleeved on the outer surface of the adjusting tube 80. The outer surfaces of the driving roller 74 and the driven roller 75 are rotatably connected to the side plate surfaces of the top plate 82, respectively. A push cylinder 83 is fixedly connected to the upper surface of the support plate 78, and the piston rod surface of the push cylinder 83 is fixedly connected to the corresponding lower surface of the top plate 82. The inner bottom surface of the dustproof box 4 is symmetrically distributed. A linkage cylinder 84 is fixedly connected, and the upper surface of the piston rod of the linkage cylinder 84 is fixedly connected to the lower surface of the extension plate of the negative pressure adsorption platform 72. A drive bevel gear 85 is fixedly connected to the outer surfaces of both ends of the unwinding roller 41. Support blocks 86 are symmetrically distributed and fixedly connected to both sides of the dustproof box 4. A drive shaft 87 is rotatably connected inside the support block 86. Drive bevel gears 88 are fixedly sleeved at both ends of the drive shaft 87. The two drive bevel gears 88 are respectively connected to the corresponding drive bevel gear 85 and the corresponding key rod 7. The outer surface of the dustproof housing 4 is connected to the synchronous bevel gear 81. The upper surface of the support frame of the dustproof housing 4 is fixedly connected to the geared motor 89. The outer surface of the unwinding roller 41 and the outer surface of the geared motor 89 are provided with a linkage housing 90 with a synchronous belt assembly. A bevel gear transmission chain is established: the rotation of the unwinding roller 41 is transmitted to the transmission bevel gear 88 at the other end through the drive bevel gear 85 at its shaft end and the transmission shaft 87. The bevel gear then meshes with the synchronous bevel gear 81 on the key rod 79, and finally transmits the power to the roller that drives the non-contact drag 71. This mechanical linkage ensures the basic speed matching between unwinding and non-contact drag 71 transmission. At the same time, the lifting and lowering of the negative pressure adsorption platform 72 is directly controlled by the independent linkage cylinder 84, so that the gap between it and the lower surface of the non-contact drag 71 can be adjusted as needed to optimize the adsorption effect. The push cylinder 83 and the linkage cylinder 84 work independently and are responsible for adjusting the height of the transmission plane and the height of the adsorption platform, respectively. The two work together to ensure the accurate setting of the process conditions in the foam application area.

[0121] By setting up a dedicated foam finishing process and equipment that integrates a slit-type foam application mechanism 5, a non-contact single-sided control mechanism 7, and a zoned drying chamber 91, a reliable and efficient equipment guarantee is provided for the high-quality implementation of this invention. This equipment system brings multiple beneficial effects: First, the slit-type foam application mechanism 5, especially its width adjustment function, can precisely control the thickness and uniformity of the foam curtain according to different foam characteristics and process requirements, ensuring the consistency of functional finishing agent application; Second, the non-contact single-sided control mechanism 7 adopts a combination of a negative pressure adsorption platform 72 and a Teflon mesh belt, creating an absolutely flat, stable, and non-mechanically contactless support plane for the fabric in the foam application area. The vertical downward airflow generated by the negative pressure not only tightens the mesh belt but also helps... By locking the foam liquid onto the outer layer 1 of the fabric, it effectively prevents the functional agents from penetrating into non-target layers, truly achieving strict single-sided finishing. The design of its three-zone drying box 91, combined with the suspended conveying method, allows infrared pre-baking to quickly provide the energy required for penetration and pre-curing; the hot air baking with upper and lower temperature difference control can concentrate energy to fully cure the outer layer 1, while avoiding excessive heating of the inner layer 3. The suspended low-tension conveying effectively avoids the adhesion and scratching of uncured microcapsules 11 on the guide rollers. Fourth, the bevel gear transmission chain between the unwinding roller 41 and the conveying roller inside the equipment provides basic speed synchronization, while the push cylinder 83 and the linkage cylinder 84 independently control the height of the conveying surface and the height of the adsorption platform, enabling the equipment to flexibly adapt to the adjustment needs of different fabric thicknesses and process spacing.

[0122] Working principle: In a specific embodiment of the present invention, in order to achieve single-sided, uniform, impermeable application and rapid curing of the outer layer microcapsules 11, the entire foam finishing process is carried out in a closed and stable environment composed of a dustproof box 4. The unwinding roller 41, as the initial power source and fabric supply end, begins to rotate, releasing the fabric. Its rotational motion is output through the active bevel gear 85;

[0123] The finishing liquid is pumped into the finishing liquid mixing tank 52 through the inlet pipe 53. Under the action of the foam generator 54, it is transformed into stable foam with a specific density. According to the required amount of foam to be applied, the control system starts the drive motor 60. The motor drives the drive gear 59 to rotate. Through meshing with the rack rods 58 on both sides, the rotational motion is transformed into the precise, synchronous, and reverse linear motion of the two slit lips 55 along the support slide rail 57, thereby setting and locking the slit width. Under gravity and slight pressure, the foam flows out evenly from the slit of the set width, forming a continuous foam curtain that falls vertically.

[0124] After the fabric is drawn out by the unwinding roller 41, it is laid flat on the non-contact drag belt 71. The driving roller 74 and the driven roller 75 rotate synchronously through the linkage bevel gear 76 group, driving the non-contact drag belt 71 to carry the fabric through the foam application area at a uniform speed. The rotation of the unwinding roller 41 is transmitted to the driving roller 74 through the bevel gear transmission chain of the driving bevel gear 85, the transmission shaft 87, the transmission bevel gear 88, the synchronous bevel gear 81, and the linkage bevel gear 76, which realizes the basic mechanical synchronization between the unwinding speed and the main machine transmission speed, and ensures the initial stability of the fabric tension.

[0125] The negative pressure adsorption platform 72 located below the mesh belt generates negative pressure under the action of the fan 92. External air penetrates the mesh belt from top to bottom and is sucked into the adsorption holes 73. This process produces two key effects: first, it evenly adsorbs and tightens the mesh belt to form an absolutely flat support surface; second, it gives the fabric above a gentle and uniform vertical downward adsorption force. This force is consistent with the direction of the falling foam contacting the fabric, effectively promoting the foam liquid to stay and initially wet the outer layer 1 fibers of the fabric, while resisting the tendency of the liquid to penetrate into the inner layer 3 of the fabric due to capillary effect.

[0126] When processing fabrics of different thicknesses or adjusting the foam application distance, the push cylinder 83 is activated, pushing the top plate 82 and the adjusting tube 80 fixed thereon to rise and fall along the key rod 79. The synchronous bevel gear 81 on the adjusting tube 80 rises and falls accordingly. Through the linkage bevel gear 76 meshing with it, the shaft ends of the driving roller 74 and the driven roller 75 are forced to rise or fall synchronously in the guide groove 77, thereby raising or lowering the transmission plane of the non-contact drag belt 71 as a whole. At the same time, the independently controllable linkage cylinder 84 is activated synchronously, driving the negative pressure adsorption platform 72 to rise and fall accordingly to maintain the optimal adsorption distance between it and the lower surface of the mesh belt. The coordination of the push cylinder 83 and the linkage cylinder 84 ensures the precise adaptation of the geometric conditions of the application area.

[0127] The fabric carrying the moist foam layer immediately enters the infrared pre-drying zone 94. The medium and short wave infrared radiator emits infrared rays with strong penetrating power, which are selectively absorbed by the moisture and fibers of the outer layer 1 of the fabric and quickly converted into heat energy. This process can accelerate the penetration of the foam liquid into the interior of the slub cotton yarn fibers and trigger the initial cross-linking reaction of the adhesive, achieving the initial anchoring of the microcapsules 11. The fabric then enters the high-temperature baking zone 95, which adopts an independent temperature-controlled hot air circulation system: the upper air duct delivers high-temperature hot air at 140-160℃ to concentrate on heating the outer layer 1 of the fabric, providing sufficient energy for the complete cross-linking of the adhesive; the lower air duct delivers lower-temperature hot air at 100-120℃, mainly to maintain the ambient temperature and prevent the inner layer 3 fabric and the formed moisture-wicking structure from being damaged by overheating.

[0128] Inside the drying oven 91, the fabric travels in a low-tension, draped manner. At the outlet of the drying oven 91, the airflow blown by the fan 92 ensures the circulation of hot air inside the oven and cools the fabric that has just finished baking, stabilizing its size and performance.

[0129] 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 moisture-wicking and quick-drying fabric, characterized in that: The moisture-wicking and quick-drying fabric includes: The outer layer (1) is made of slub cotton yarn and has an irregular texture structure formed naturally by the slub yarn. The outer layer (1) has microcapsules (11) of phase change material attached to the fiber surface. The microcapsules (11) have a particle size of 5-30 micrometers and a coverage rate of 5%-20%, and are used to absorb and release heat when the temperature changes. The intermediate layer (2) is composed of hydrophilic modified polyester fibers, which have a mesh structure and form a continuous moisture-wicking channel network. The inner layer (3) is made of ultrafine polyester filaments. The surface of the inner layer (3) is hydrophilically treated and has a contact angle of ≤40°. The surface of the inner layer (3) has micron-level moisture-wicking grooves (31) formed by laser etching. The grooves are 10-100 microns wide and 20-200 microns deep, and are radial. The outer layer (1), middle layer (2), and inner layer (3) are interwoven to form an integrated structure. Some yarns of the middle layer (2) penetrate the inner and outer layers (1) to form a three-dimensional moisture-wicking channel. The fiber density of the fabric increases in a gradient from the outer layer (1) to the inner layer (3), and local bonding points are formed between the layers by low melting point composite fibers.

2. The moisture-wicking and quick-drying fabric according to claim 1, characterized in that: The step of attaching phase change material microcapsules (11) to the fiber surface includes: Step 1: Mix phase change material microcapsules (11), hydrophilic binder, foaming agent, and necessary additives with water in a certain proportion, and use a dynamic foaming device to produce foam with a density of 0.10-0.30 g / cm³. 3 A stable foam finishing liquid with uniform bubble diameter and a half-life of not less than 5 minutes, wherein the effective concentration of microcapsules (11) in the finishing liquid is 40-100 g / L, and the foaming agent is one or more of anionic or nonionic surfactants. Step 2: Apply the foam finishing liquid to the outer layer (1) surface of the fabric with a 30-50% roll-off rate using a slit applicator. During the application process, control the foam viscosity, application pressure and fabric conveying speed to ensure that the foam breaks in a controlled manner when it contacts the fabric surface, releasing the finishing liquid and ensuring that the microcapsules (11) are mainly concentrated in the surface and shallow gaps of the outer layer (1) fibers. Step 3: Immediately after applying the foam, subject the fabric to infrared irradiation treatment at an intensity of 2-5 kW / m². 2 The time is 30-90 seconds. The infrared energy causes the broken finishing liquid to quickly penetrate into the interior of the slub cotton yarn fiber, and at the same time triggers the initial cross-linking of the adhesive, so as to achieve the initial positioning of the microcapsule (11). Step 4: The infrared-treated fabric is sent to the drying room for drying and curing. The drying temperature is 100-120℃ and the time is 1-2 minutes. Then, it is baked and cured at 140-160℃ for 2-4 minutes to make the adhesive completely cross-linked, so that the phase change material microcapsules (11) are permanently and firmly attached to the outer layer (1) fiber surface, and the coverage rate is controlled at 5%-20%.

3. A process for preparing the moisture-wicking and quick-drying fabric as described in any one of claims 1-2, characterized in that, Includes the following steps: S1. Yarn preparation and pretreatment: S11, Outer layer (1) yarn: 30S-40S combed cotton slub yarn is selected, with a slub length of 5-15mm and a pitch of 20-50mm. The cotton fiber is pretreated with hydrophilicity to improve the initial moisture absorption. S12, Intermediate layer (2) yarn: Selected hydrophilic modified polyester filament with a fineness of 50D-100D; S13, Inner layer (3) yarn: Select ultra-fine denier polyester yarn with a single filament fineness of 0.5-1.2dtex and perform hydrophilic finishing so that its contact angle is ≤40°; S14. Connecting yarn: Prepare low-melting-point composite fibers for interlayer thermal fusion bonding; S2, Gradient Weaving and Structural Forming: S21. Loom configuration: A double-shed jacquard loom is adopted to achieve three-layer synchronous weaving; S22, Structure Design: The outer layer (1) is based on plain weave and uses slub yarn to form a natural concave-convex shape. The middle layer (2) is mainly based on mesh structure with a yarn spacing of 0.5-2mm to form a continuous moisture-wicking network. The inner layer (3) adopts high-density plain weave to ensure a smooth surface. Then, through weft insertion and splicing processes, the hydrophilic modified polyester yarn of the middle layer (2) is interwoven with the yarn of the outer layer (1) and the inner layer (3) according to a preset pattern to form a vertically penetrating moisture-wicking bridge. S23. By controlling the warp and weft density, the outer layer (1) has a density of 150-250 threads / inch and the inner layer (3) has a density of 250-400 threads / inch, forming a gradient from sparse to dense. S3. Pre-treatment of the fabric: S31. Desizing, scouring and bleaching the woven fabric to remove oils, sizing agents and impurities from the spinning and weaving process; S32. Perform pre-conditioning at a temperature of 170-190℃ for 30-60 seconds to stabilize the fabric size and structure. S4. Post-function cleanup: S41, Outer layer (1) microcapsule (11) finishing: Prepare a finishing solution containing phase change material microcapsules (11), apply the finishing solution to the outer layer (1) of the fabric using a single-sided application process, and then fix it to make the microcapsules (11) permanently attached to the fiber surface of the outer layer (1). S42, Inner layer (3) laser etching moisture-wicking trench (31): Using a carbon dioxide laser etching machine, a radial micro-groove network is designed on the inner layer (3) according to ergonomics. The laser power, frequency and scanning speed are set, and the trench width is controlled to be 10-100 micrometers and the depth to be 20-200 micrometers. Then the fabric is fixed on the CNC platform, so that the inner layer (3) faces the laser head, and precision etching is performed according to the preset program. S5. Interlayer composite strengthening and final shaping: S51, Hot-melt composite: By hot rolling between fabric layers, the woven low-melting-point composite fibers are activated to form evenly distributed local bonding points, enhancing the overall structure without blocking the moisture-wicking channels. S52. Final setting: Under moderate tension, perform final setting at 160-180℃ for 45-90 seconds to ensure fabric dimensional stability, soft hand feel, and durable function. S53. Inspection and Packaging: The moisture absorption, quick-drying, breathability, durability and appearance of the fabric are tested, and the qualified products are packaged and put into storage.

4. The preparation process of a moisture-wicking and quick-drying fabric according to claim 3, characterized in that: The single-sided application process in step S41 is a foam finishing process, which includes: A slit-type foam application mechanism (5) is used to apply foam finishing liquid to the outer layer (1) of the fabric on one side; The non-contact single-sided control mechanism (7) located below the slit-type foam application mechanism (5) is used to support the fabric and prevent the finishing liquid from penetrating into the inner layer (3) during the foam application process. A drying box (91) is provided on one side of the non-contact single-sided control mechanism (7). The outlet end of the drying box (91) is provided with a guide roller (93) and a fan (92) is provided on it. The drying box (91) consists of an infrared pre-drying zone (94) and a high-temperature baking zone (95). The infrared pre-drying zone (94) uses a medium-short wave infrared radiator to irradiate the outer layer (1) of the fabric. The high-temperature baking zone (95) uses an independent upper and lower temperature-controlled hot air circulation system. The upper air duct temperature is controlled at 140-160℃ and the lower air duct temperature is controlled at 100-120℃. The fabric travels through the drying box (91) in a low-tension, suspended transmission manner.

5. The preparation process of a moisture-wicking and quick-drying fabric according to claim 4, characterized in that: The foam finishing process also includes a dustproof box (4) mounted on a support frame. The inlet end of the dustproof box (4) is rotatably connected to a roll-up roller (41) via a guide plate. The slit-type foam application mechanism (5) includes mounting blocks (51) fixedly connected to the inner top surface of the dustproof box (4) at intervals. The lower surface of the mounting blocks (51) is fixedly connected to a finishing liquid mixing tank (52) via linearly distributed support rods. The upper surface of the finishing liquid mixing tank (52) is fixedly connected to an inlet pipe (53) extending to the outside of the dustproof box (4). The lower surface of the finishing liquid mixing tank (52) is fixedly connected to foam generators (54) at intervals.

6. The preparation process of a moisture-wicking and quick-drying fabric according to claim 5, characterized in that: The slit-type foam application mechanism (5) further includes slit lip plates (55) arranged opposite to each other and having a concave shape on both sides of the finishing liquid mixing tank (52). Support sliders (56) arranged opposite to each other are fixedly connected to the lower surfaces of the two ends of the two slit lip plates (55). Support slide rails (57) that slide and engage with the inner surface of the corresponding support sliders (56) are fixedly connected to the upper surface of the finishing liquid mixing tank (52).

7. The preparation process of a moisture-wicking and quick-drying fabric according to claim 6, characterized in that: Two slit lip plates (55) are respectively fixedly connected to the opposite side surfaces of their ends with rack rods (58), and the outer surface of the two rack rods (58) of one slit lip plate (55) is slidably engaged with the inner surface of the limiting groove opened on the opposite side surface of the other slit lip plate (55). A transmission gear (59) meshes between the two rack rods (58) at one end, and the transmission gear (59) is rotatably connected to the upper surface of the finishing liquid mixing tank (52). A transmission motor (60) is fixedly connected to the upper surface of one of the transmission gears (59), and the transmission motor (60) is fitted into the inside of the mounting block (51). The lower surfaces of the two slit lip plates (55) adjust the opening size of the foam generator (54).

8. The preparation process of a moisture-wicking and quick-drying fabric according to claim 7, characterized in that: The contactless single-sided control mechanism (7) includes a contactless tow belt (71) installed inside the dustproof box (4). The contactless tow belt (71) is a Teflon-coated glass fiber mesh belt. A negative pressure adsorption platform (72) is provided between the inner top surface and the inner bottom surface of the contactless tow belt (71). Adsorption holes (73) are provided at intervals on the upper surface of the negative pressure adsorption platform (72).

9. The preparation process of a moisture-wicking and quick-drying fabric according to claim 8, characterized in that: The contactless single-sided control mechanism (7) further includes an active roller (74) and a driven roller (75) that respectively transmit at both ends of the contactless tow belt (71). Both ends of the active roller (74) and the driven roller (75) are fixedly sleeved with a linkage bevel gear (76). The dustproof box (4) has guide grooves (77) symmetrically distributed and opened through both sides. The outer surfaces of the active roller (74) and the driven roller (75) are respectively slidably engaged with the inner walls of the corresponding guide grooves (77). The upper surface of the support frame of the dustproof box (4) is fixedly connected with a support plate (78). The upper surface of the support plate (78) is rotatably connected with a key rod (79) with a key column. The outer surface of the key rod (79) is slidably engaged with an adjusting tube (80). The outer surface of the key rod (79) and the outer surface of the adjusting tube (80) are respectively fixedly sleeved with synchronous bevel gears (81).

10. The preparation process of a moisture-wicking and quick-drying fabric according to claim 9, characterized in that: The outer surface of the regulating tube (80) is fixedly sleeved with a top plate (82) with side plates. The outer surfaces of the two ends of the driving roller (74) and the driven roller (75) are rotatably connected to the side plate surfaces of the top plate (82). The upper surface of the support plate (78) is fixedly connected with a push cylinder (83). The piston rod surface of the push cylinder (83) is fixedly connected to the lower surface of the corresponding top plate (82). The inner bottom surface of the dustproof box (4) is symmetrically distributed with linkage cylinders (84). The upper surface of the piston rod of the linkage cylinder (84) is fixedly connected to the lower surface of the extension plate of the negative pressure adsorption platform (72). The outer surfaces of the two ends of the unwinding roller (41) are respectively fixed. A drive bevel gear (85) is connected to the dustproof box (4). Support blocks (86) are symmetrically distributed and fixedly connected to both sides of the dustproof box (4). A drive shaft (87) is rotatably connected inside the support block (86). Drive bevel gears (88) are fixedly sleeved at both ends of the drive shaft (87). The two drive bevel gears (88) mesh with the corresponding drive bevel gear (85) and the corresponding synchronous bevel gear (81) on the outer surface of the key rod (79). A geared motor (89) is fixedly connected to the upper surface of the support frame of the dustproof box (4). A linkage housing (90) with a synchronous belt assembly is provided on the outer surface of the unwinding roller (41) and the outer surface of the geared motor (89).

Images