A method for manufacturing a one-way moisture conducting fabric

One-way moisture-wicking membranes were prepared by electrospinning and using bio-based fluorine-free waterproofing agents, which solved the environmental pollution and health risks of PTFE membranes in outdoor clothing and footwear applications, achieving efficient, environmentally friendly one-way moisture-wicking performance and breathability.

CN118087152BActive Publication Date: 2026-01-09HUAMAO (XIAMEN) WEAVING DYEING & FINISHING CO LTD +1
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Patent Information

Application Number
CN202410193612.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-21
Publication Date
2026-01-09
Estimated Expiration
2044-02-21

AI Technical Summary

Technical Problem

Existing PTFE membranes pose environmental pollution, health risks, and difficulty in degradation when used in outdoor clothing and footwear, necessitating the development of an environmentally friendly one-way moisture-wicking fabric.

Method used

One-way moisture-wicking membranes are prepared using electrospinning technology. Polyurethane is dissolved in DMF solvent with the addition of matting powder and fluorine-free waterproofing agent. The fiber film is formed by electrospinning and combined with bio-based fluorine-free waterproofing agent and hot melt adhesive composite technology to prepare one-way moisture-wicking fabrics.

Benefits of technology

The prepared unidirectional moisture-wicking membrane has high hydrostatic pressure, moisture permeability and air permeability, meets environmental protection requirements, reduces environmental pollution and health risks, and has low cost and environmentally friendly production process.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application discloses a preparation method of a one-way moisture-conducting fabric and belongs to the one-way moisture-conducting field. The preparation method of the one-way moisture-conducting film comprises the following steps: S1, adding extinction powder and fluorine-free waterproof agent into a spinning solution and stirring uniformly; S2, sending the spinning solution to a spinning nozzle, flowing out at a constant speed, applying a high-voltage electrostatic field outside the spinning nozzle, charging the spinning solution, deforming the spinning solution jet under the action of the electric field force, and finally forming fibers; S3, continuously depositing the fibers on a collector during the electrospinning process to form a fiber film; and S4, post-treating the fiber film to obtain the one-way moisture-conducting film. The film material prepared by the application has the static water pressure protection capability, moisture vapor or sweat vapor can be transferred from the inner layer of the fabric to the outer layer of the fabric, and diffused and evaporated in the outer layer, and meanwhile, the moisture vapor or sweat vapor in the outer layer is difficult to be inversely penetrated into the inner layer.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the field of one-way moisture management, and particularly relates to a one-way moisture management film preparation method and a one-way moisture management fabric preparation method. BACKGROUND

[0002] Previously, high-end outdoor jackets on the market mostly use PTFE membrane composite fabrics to achieve waterproof and moisture vapor transmission functions. The reason why PTFE membrane is breathable is mainly due to its unique microporous structure. This structure is composed of a network of interconnected pores, and the size of these pores is smaller than that of water droplets but larger than that of water vapor molecules. This design allows water vapor (sweat) to pass through the micropores, while water droplets (rain or snow) are prevented from entering. In addition, the microporous structure of PTFE membrane also allows air to pass through, further improving its breathability. This breathability is very important for outdoor clothing and footwear applications, as it helps to prevent the accumulation of sweat and moisture inside the clothing.

[0003] In recent years, with the increasing strictness of environmental protection requirements, PTFE has been increasingly restricted. The reasons are as follows: first, PTFE is an artificially synthesized polymer, and harmful substances such as perfluorooctanoic acid are needed in the production process. These substances can have negative effects on the environment and human health, so many countries have restricted the production and use of PTFE products.

[0004] Secondly, PTFE is a difficult-to-degrade substance that can harm the environment if it exists in the environment for a long time. Therefore, many environmental protection organizations have called for restrictions or bans on the use of PTFE products to reduce their negative impact on the environment.

[0005] In addition, the production and use of PTFE products also involve labor safety and occupational health issues. In the production process, workers may be exposed to harmful substances, which poses a potential threat to their health. Therefore, some countries have restricted the production and sale of PTFE products to ensure labor safety and occupational health.

[0006] Therefore, there is an urgent need to develop a new type of one-way moisture management fabric that meets the environmental protection requirements of the international and domestic markets. The one-way moisture management technology used in the preparation of the one-way moisture management fabric of the present application can transfer water or sweat from the inner layer of the carrier to the outer layer of the fabric, and the water or sweat in the outer layer is difficult to reverse osmosis to the inner layer. SUMMARY

[0007] The purpose of the present application is to provide a one-way moisture management film preparation method and a one-way moisture management fabric preparation method to overcome at least one of the above-mentioned defects in the prior art.

[0008] To achieve this purpose, the present application adopts the following technical solutions:

[0009] The application provides a preparation method of a one-way moisture transfer film, comprising the following steps: S1, preparing a spinning solution, dissolving a high-molecular polyurethane in a solvent, stirring to prepare a spinning solution with a mass concentration of 25-35%, then adding extinction powder and a fluorine-free waterproof agent into the spinning solution and stirring uniformly, S2, electrostatic spinning, sending the spinning solution prepared in step S1 into a spinning nozzle, flowing out at a constant rate, applying a high-voltage electrostatic field to the spinning nozzle, charging the spinning solution, deforming the spinning solution jet under the action of the electric field force, and finally forming a fiber, S3, collecting a film, continuously depositing the fiber on a collector to form a fiber film during the electrostatic spinning process, and S4, post-treatment, post-treating the fiber film collected in step S3 to obtain the one-way moisture transfer film.

[0010] Preferably, in step S1, the high-molecular polyurethane is TPU particles, the solvent is DMF solvent, the TPU particles and the DMF solvent are stirred at a rotating speed of 700-900 rmp / min, the addition amount of the extinction powder and the fluorine-free waterproof agent is 1-4% of the volume of the spinning solution, the extinction powder and the fluorine-free waterproof agent are stirred at a rotating speed of 300-500 rmp / min after being added, the temperature of the spinning solution is controlled to be ≤25℃, the air humidity is 63-67%, and the viscosity is 1200-1500 cps, in step S2, the outflow rate of the spinning nozzle is 2-4 ml / h, in step S3, the strength of the high-voltage electrostatic field is 22-27 kV, and the rotating speed of the collector is 230-270 rpm / min, and the collection carrier is release paper.

[0011] Preferably, step S4 specifically comprises the following steps: S41, mixing and stirring a low-surface-tension medicament and distilled water in a proportion of 1:18-20 to disperse, then adding an isocyanate crosslinking agent after dispersion and fully stirring to obtain a post-finishing solution, S42, placing the post-finishing solution prepared in step S41 into a trough, placing the post-finishing solution into a padding trough through the trough, and then passing the fiber film obtained in step S3 through padding finishing, so that the post-finishing solution penetrates into the inner layer of the fiber film on the front and back surfaces of the fiber film, and then performing extrusion treatment after padding, with the pressure being set to 0.15-0.25 kg / cm 2 , S43, drying and winding the fiber film treated in step S42 at a vehicle speed of 9-11 m / min to obtain the one-way moisture transfer film, and in step S41, the low-surface-tension medicament is a polyurethane high-molecular material, an acrylic high-molecular material or an organic silicon high-molecular material.

[0012] Preferably, in step S1, the stirring operation is performed by using a stirring device, which comprises a box body, a feeding assembly, a stirring assembly, a transmission assembly, a humidifying assembly, a circulating assembly, a motor, heating wires and a hot water pipe, the upper part of the left side wall of the box body is fixedly connected with the feeding assembly, the top of the box body is provided with the stirring assembly, the humidifying assembly and the motor, the motor, the humidifying assembly and the stirring assembly are drivingly connected through the transmission assembly, the stirring end of the stirring assembly is located inside the box body, the humidifying end of the humidifying assembly is located above the box body and above the stirring end, one end of the hot water pipe is communicated with a hot water source, the other end of the hot water pipe is communicated with the stirring assembly, one end of the circulating assembly is communicated with the stirring assembly, the other end of the circulating assembly is communicated with the humidifying assembly, a heating cavity is formed in the side wall of the box body, and the heating wires are fixedly arranged in the heating cavity.

[0013] Preferably, the stirring device further comprises a control cabinet, the feeding assembly comprises a Venturi tube, a first liquid inlet pipe, a first electromagnetic valve, a second liquid inlet pipe, a second electromagnetic valve, a first medicine storage tank, a first feeding pipe, a third electromagnetic valve, a second medicine storage tank, a second feeding pipe and a fourth electromagnetic valve, the diffuser section of the Venturi tube is fixedly connected with the left side wall of the box body, the convergent section of the Venturi tube is fixedly connected with the first liquid inlet pipe and the second liquid inlet pipe, the first liquid inlet pipe is provided with the first electromagnetic valve, the second liquid inlet pipe is provided with the second electromagnetic valve, the throat of the Venturi tube is fixedly connected with the first feeding pipe, the top end of the first feeding pipe is fixedly connected with the first medicine storage tank, the top end of the second feeding pipe is fixedly connected with the second medicine storage tank, the bottom end of the second feeding pipe is fixedly connected with the lower part of the first feeding pipe in a slanting manner, the first feeding pipe is provided with the third electromagnetic valve, the third electromagnetic valve is located above the position where the first feeding pipe and the second feeding pipe are connected, the second feeding pipe is provided with the fourth electromagnetic valve, and the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the heating wires and the motor are electrically connected with the control cabinet.

[0014] Preferably, the stirring assembly comprises a first bearing seat, a first hollow rotating shaft, stirring blades and a first sealing member, the top of the box body is fixedly provided with the first bearing seat, the bottom end of the first hollow rotating shaft extends out of the box body through the first bearing seat, the top wall of the box body and the bottom wall of the box body, the first hollow rotating shaft is sealingly arranged between the box body, the lower part of the first hollow rotating shaft is fixedly provided with a plurality of stirring blades, a snakelike channel is formed in the interior of the stirring blades, the snakelike channel is communicated with the inner cavity of the first hollow rotating shaft, the bottom end of the hot water pipe extends above the interior of the first hollow rotating shaft and is provided with the first sealing member between the first hollow rotating shaft, one end of the circulating assembly extends below the interior of the first hollow rotating shaft and is provided with the first sealing member between the first hollow rotating shaft.

[0015] Preferably, the circulating assembly comprises a circulating water tank, a first water pipe, a second water pipe, a circulating water pump, a fifth electromagnetic valve, and a third water pipe, the upper left side wall of the circulating water tank is fixedly connected with the first water pipe, the first water pipe extends to the lower part of the first hollow rotating shaft, the first water pipe is provided with the fifth electromagnetic valve, the bottom of the second water pipe extends to the lower part of the circulating water tank, the upper part of the second water pipe is fixedly connected with the third water pipe, the bottom of the third water pipe is connected with the humidifying assembly, the third water pipe has a contraction part, the hole diameter of the contraction part decreases from top to bottom, the hot water pipe has a diffusion part, the hole diameter of the diffusion part increases from top to bottom, the sixth electromagnetic valve is arranged on the upper part of the diffusion part, and the circulating water pump and the sixth electromagnetic valve are electrically connected with the control cabinet.

[0016] Preferably, the humidifying assembly comprises two, which are arranged on the left and right sides of the first hollow rotating shaft, and each comprises a second bearing seat, a second hollow rotating shaft, a water collecting disc, a second sealing element, and an atomizing nozzle, the top of the box body is fixedly connected with the second bearing seat, the bottom of the second hollow rotating shaft penetrates through the top wall of the box body and the second bearing seat and extends to the upper part of the box body and is fixedly connected with the water collecting disc, the second hollow rotating shaft is sealed with the box body, the bottom of the water collecting disc is fixedly connected with a plurality of atomizing nozzles, and the bottom of the third water pipe extends to the inside of the second hollow rotating shaft and is provided with the second sealing element.

[0017] Preferably, the transmission assembly comprises a first transmission wheel, a first transmission belt, a first double-groove transmission wheel, a second transmission belt, a second double-groove transmission wheel, a third transmission belt, and a second transmission wheel, the output shaft of the motor is fixedly connected with the first transmission wheel, the upper part of the second hollow rotating shaft on the right side is fixedly connected with the first double-groove transmission wheel, the first double-groove transmission wheel and the first transmission wheel are transmissionally connected through the first transmission belt, the upper part of the first hollow rotating shaft is fixedly connected with the second double-groove transmission wheel, the first double-groove transmission wheel and the second double-groove transmission wheel are transmissionally connected through the second transmission belt, the upper part of the second hollow rotating shaft on the left side is fixedly connected with the second transmission wheel, and the second transmission wheel and the second double-groove transmission wheel are transmissionally connected through the third transmission belt.

[0018] Preferably, the temperature sensor, the humidity sensor, the discharge pipe, and the seventh electromagnetic valve are further arranged, the top wall of the box body is fixedly connected with the humidity sensor, the right side wall of the box body is fixedly connected with the temperature sensor, the detection end of the temperature sensor extends to the lower part of the box body, the lower part of the left side wall of the box body is fixedly connected with the discharge pipe, the discharge pipe is provided with the seventh electromagnetic valve, and the seventh electromagnetic valve, the temperature sensor, and the humidity sensor are electrically connected with the control cabinet.

[0019] The application further provides a preparation method of the one-way moisture-conducting fabric, comprising the following steps: S100, selecting elastic fabric to perform desizing, setting, dyeing and drying treatment; S200, water spraying finishing, the elastic fabric treated in step S100 is subjected to padding finishing, and then is subjected to weft bending correction treatment and baking treatment, the baking time is 2-4 min; S300, pre-shrinking, the elastic fabric treated in step S200 is subjected to pre-shrinking treatment in the heating and pressurizing area of a pre-shrinking machine, and then is subjected to cooling setting treatment; S400, first compounding, the elastic fabric treated in step S300 is compounded on the upper side of the one-way moisture-conducting film prepared by the one-way moisture-conducting film preparation method, and then the compounded elastic fabric is subjected to aging treatment; S500, second compounding, the knitted base fabric is compounded on the lower side of the one-way moisture-conducting film of the compounded elastic fabric treated in step S400 by hot melt adhesive, and then the compounded elastic fabric is subjected to aging treatment, thereby obtaining the one-way moisture-conducting fabric.

[0020] Preferably, in step S100, the elastic fabric is selected from spandex elastic fabric, nylon elastic fabric or mechanical elastic fabric; in step S200, the water spraying agent is a bio-based fluorine-free waterproof agent, and the pressure roller pressure is 2-4 kg / cm 2 The baking is performed by using a nine-section oven, the baking temperature is set to 160℃-170℃-190℃-190℃-190℃-190℃-190℃-160℃-160℃, in step S300, the pre-shrinking temperature is 140-160℃, and the pre-shrinking time is 15 s, in step S400, the first compounding treatment is performed by using a PUR hot melt adhesive with a model number of TL-9107, the adhesive temperature is 103-108℃, the adhesive amount is 6-8 g / m 2 , the diamond-shaped roller is selected for adhesive application, the aging temperature is 45-55℃, and the aging time is greater than or equal to 24 h, in step S500, the second compounding treatment is performed by using a PUR hot melt adhesive with a model number of TL-9107, the adhesive temperature is 113-118℃, the adhesive amount is 5-7 g / m 2 , and the aging temperature is 45-55℃.

[0021] The application has the following beneficial effects:

[0022] 1. The film material with waterproof and vapor-permeable functions prepared by the electrostatic spinning process has static water pressure protection capability, the static water pressure can meet the national standard ISO811 method (60 cm / min) ≥6000 mm / H20, and the moisture permeability can reach GB / T 12704.2-2009 evaporation method method B (inverted cup method) ≥10000 g / m 2The air permeability can reach GBT 5453-1997 >= 1.5 mm / s. The electrostatic spinning film material can realize that the moisture vapor or sweat vapor can be transmitted from the inner layer of the fabric to the outer layer of the fabric, and diffused and evaporated in the outer layer, and the moisture vapor or sweat vapor in the outer layer is difficult to reverse osmosis to the inner layer.

[0023] 2. By controlling the different adding proportions of the delustering powder and the fluorine-free waterproof agent, and the thickness and uniformity of the fiber film, a one-way moisture guiding film with different hydrostatic pressures and different moisture permeabilities is obtained.

[0024] 3. Only one driving source is needed to realize the rotation of the humidifying assembly and the stirring assembly, so that the cost is reduced and the design is ingenious.

[0025] 4. By the heating mode from outside to inside of the material through the heating wire and the heating mode from inside to outside of the material through the hot water flowing through the feeding assembly, the heating of the material liquid is more uniform.

[0026] 5. The hot water after heating the material is used as humidifying water, which is not only recycled but also directly uses the residual temperature water to humidify the box, so that the adverse effects caused by the large temperature difference on the material liquid are avoided, and the temperature and humidity can be well controlled.

[0027] 6. The DMF solvent and TPU particles, the fluorine-free waterproof agent and the delustering powder are respectively preliminarily mixed and then sent into the box through the feeding assembly while feeding, which is beneficial to subsequent stirring and mixing and improves the mixing efficiency.

[0028] 7. The hot water stays in the stirring blade for a longer time through the setting of the serpentine channel, so that the heat transfer is better.

[0029] 8. The contraction part is arranged on the third water pipe, the pressurizing effect is formed through the pipeline structure, which is more conducive to atomizing and spraying the residual temperature water by the humidifying assembly; the diffusion part is arranged on the hot water pipe, the decompression effect is formed through the pipeline structure, and the impact damage to the first hollow shaft is avoided.

[0030] 9. The left and right humidifying assemblies are adopted, and the atomizing nozzles are rotated, so that the humidification is more comprehensive and uniform.

[0031] 10. The temperature sensor is used to detect the temperature of the spinning solution in real time, and feedback to the control cabinet, so that the control cabinet controls the heating temperature of the heating wire, and the temperature of the spinning solution is kept at <= 25 DEG C. The humidity sensor is used to detect the humidity in the box in real time, and feedback to the control cabinet, so that the control cabinet controls the humidifying assembly to carry out humidification operation, and the air humidity is kept at 63-67%. The spinning solution is not easy to form a skin, and the temperature of the spinning solution does not rise too fast to cause solvent evaporation.

[0032] 11. The surface fabric is fluorine-free and waterproof, which can repel water and resist dirt. The middle membrane material does not contain PFAS perfluorinated compounds and uses bio-based fluorine-free waterproofing agents. The raw materials used in its production are partially renewable, which effectively reduces greenhouse gas emissions and greatly reduces carbon footprint, making it more environmentally friendly.

[0033] 12. One-way moisture-wicking fabric has excellent one-way moisture-wicking properties, elasticity, and sound absorption. Attached Figure Description

[0034] Figure 1 This is a flowchart illustrating the preparation process of the unidirectional humidifying membrane of the present invention.

[0035] Figure 2 This is a schematic diagram of the structure of the stirring device of the present invention.

[0036] Figure 3 This is a schematic diagram of the feeding assembly of the present invention.

[0037] Figure 4 This is a partial structural schematic diagram of the present invention.

[0038] Figure 5 This is a schematic diagram of the assembly structure of the first hollow rotating shaft, stirring blade, first water pipe, and first sealing element of the present invention.

[0039] Figure 6 This is a schematic diagram of the mating structure of the hot water pipe, the first sealing element, and the first hollow rotating shaft of the present invention.

[0040] Figure 7 This is a schematic diagram of the mating structure of the third water pipe, the second sealing element, and the second hollow rotating shaft of the present invention.

[0041] Figure 8 This is the present invention. Figure 2 A magnified structural diagram of A in the diagram.

[0042] Figure 9 This is a system block diagram of the stirring device of the present invention.

[0043] Figure 10 This is a flowchart illustrating the preparation process of the unidirectional moisture-wicking fabric of the present invention.

[0044] The labels in the attached diagram are as follows: 1-Box body, 2-Hot water pipe, 3-Feeding assembly, 4-Stirring assembly, 5-Transmission assembly, 6-Humidification assembly, 7-Circulation assembly, 8-Motor, 9-Heating wire, 10-Heating chamber, 11-Control cabinet, 31-Venturi tube, 32-First liquid inlet pipe, 33-First solenoid valve, 34-Second liquid inlet pipe, 35-Second solenoid valve, 36-First medicine storage tank, 37-First feeding pipe, 38-Third solenoid valve, 39-Second medicine storage tank, 310-Second feeding pipe, 311-Fourth solenoid valve, 41-First bearing seat, 42-First hollow rotating shaft, 43-Stirring blade, 44-First seal, 45-Serpentine Channel, 71-Circulating water tank, 72-First water pipe, 73-Second water pipe, 74-Circulating water pump, 75-Fifth solenoid valve, 76-Third water pipe, 761-Contraction section, 21-Diffuser section, 12-Sixth solenoid valve, 61-Second bearing seat, 62-Second hollow rotating shaft, 63-Water collection tray, 64-Second seal, 65-Atomizing nozzle, 51-First drive wheel, 52-First drive belt, 53-First double-groove drive wheel, 54-Second drive belt, 55-Second double-groove drive wheel, 56-Third drive belt, 57-Second drive wheel, 13-Temperature sensor, 14-Humidity sensor, 15-Discharge pipe, 16-Seventh solenoid valve. Detailed Implementation

[0045] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0046] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] like Figure 1 As shown, the method for preparing a unidirectional hygroscopic membrane provided in this embodiment includes the following steps:

[0048] S1: Prepare the spinning solution, use TPU particles of Lubrizol Company as the main raw material, dissolve them in DMF solvent, stir the TPU particles and DMF solvent at a speed of 800 rmp / min through a stirring device, stir to prepare a spinning solution with a mass concentration of 30%, then add 2% of the volume of the spinning solution of flatting powder and 3% of the volume of the spinning solution of fluorine-free waterproof agent, reduce the stirring speed to 400 rmp / min until the stirring is uniform. The stirring process also needs to control the spinning solution temperature ≤25℃, adjust the dryness, and control the spinning solution viscosity at 1300 cps. The whole process of ingredient stirring is completed in a closed device, and the surrounding environment is a constant temperature and humidity room, the temperature is controlled at 23±1℃, and the air humidity is controlled at 65±2%; the temperature and humidity control makes the spinning solution not easy to form a skin and the solvent does not volatilize too fast. By adding different proportions of flatting powder and fluorine-free waterproof agent, a unidirectional moisture transfer film with different hydrostatic pressures and different moisture permeabilities can be obtained.

[0049] S2: Electrospinning, send the spinning solution prepared in step S1 to the spinning nozzle to flow out at a constant rate, apply a high-voltage electrostatic field outside the spinning nozzle, charge the spinning solution, and under the action of the electric field force, the spinning solution jet is deformed to form a fiber. In this embodiment, the flow rate of the spinning nozzle is 3 mL / h.

[0050] S3: Collect the film, during the electrospinning process, the fibers continuously deposit on the collector to form a fiber film, and the fiber film of this embodiment is a nanofiber film. The thickness and uniformity of the fiber film can be controlled by adjusting the rotation speed of the collector and the strength of the electrostatic field. The thickness of the fiber film directly affects the hydrostatic pressure and the moisture permeability. In this embodiment, the strength of the high-voltage electrostatic field is 25 kV, and the rotation speed of the collector is 250 rpm / min.

[0051] S4: Post-processing, post-process the fiber film collected in step S3 to obtain a unidirectional moisture transfer film, to remove the solvent, improve the bonding force between the fibers, further enhance the uniformity of the film material, increase the stability of the unidirectional moisture transfer film, etc.

[0052] Step S4 specifically includes:

[0053] S41: Mix and stir the low-surface-tension agent with anionic properties and distilled water in a ratio of 1:19, then add isocyanate crosslinking agent (5 g / L) after dispersion, and stir uniformly to obtain a finishing solution. The low-surface-tension agent of this embodiment is a polyurethane high polymer material.

[0054] S42: Put the finishing solution prepared in step S41 into the trough, and then put it into the padding trough through the trough. Then, the fiber film obtained in step S3 is padded to make the finishing solution penetrate into the inner layer of the fiber film from both sides. After padding, the fiber film is squeezed by a padder, and the pressure of the padder is set to 0.2 kg / cm 2 .

[0055] S43: The fiber film treated in step S42 is dried by an infrared dryer at a speed of 10 m / min and is wound up to obtain a unidirectional moisture-permeable film.

[0056] In this embodiment, the film material with waterproof and vapor-permeable functions prepared by the electrospinning process has hydrostatic pressure protection capability, the hydrostatic pressure can meet the national standard GB / T 4744-2013 (60 cmH2O / min) ≥6000 mm / H20, the moisture permeability can reach GB / T12704.2-2009 evaporation method B (inverted cup method) ≥10000 g / m 2 / 24h, and the air permeability can reach GBT 5453-1997 ≥1.0 mm / s.

[0057] As shown in Figures 2 to 9 , in step S1, stirring equipment is used for stirring operation, and the stirring equipment includes a box body 1, a feeding assembly 3, a stirring assembly 4, a transmission assembly 5, a humidifying assembly 6, a circulating assembly 7, a motor 8, heating wires 9, and a hot water pipe 2. The upper part of the left side wall of the box body 1 is fixedly connected with the feeding assembly 3, and the top of the box body 1 is provided with the stirring assembly 4, the humidifying assembly 6, and the motor 8.

[0058] The motor 8, the humidifying assembly 6, and the stirring assembly 4 are drivingly connected through the transmission assembly 5, so that the rotation of the humidifying assembly 6 and the stirring assembly 4 can be realized by only one driving source, thereby reducing the cost and being ingenious in design.

[0059] The stirring end of the stirring assembly 4 is located inside the box body 1, the humidifying end of the humidifying assembly 6 is located above the box body 1 and above the stirring end, one end of the hot water pipe 2 is communicated with a hot water source, the other end of the hot water pipe 2 is communicated with the stirring assembly 4, one end of the circulating assembly 7 is communicated with the stirring assembly 4, the other end of the circulating assembly 7 is communicated with the humidifying assembly 6, a heating cavity 10 is arranged in the side wall of the box body 1, and the heating wire 9 is fixed in the heating cavity 10. The feeding assembly 3 is used for feeding various materials, and the heating wire 9 is used for heating. While the stirring assembly 4 is stirring, the hot water pipe 2 delivers hot water to the stirring assembly 4, and the hot water flowing through the feeding assembly 3 is heated from the outside to the inside of the material, and the hot water heated after the material is heated is used as humidifying water, which not only recycles and utilizes, but also directly uses the residual water to humidify the box body 1, avoids the adverse effects caused by the large temperature difference of the material liquid, and can well control the temperature and humidity.

[0060] The control cabinet 11 is further included. The feeding assembly 3 includes a Venturi tube 31, a first liquid inlet pipe 32, a first electromagnetic valve 33, a second liquid inlet pipe 34, a second electromagnetic valve 35, a first medicine storage tank 36, a first feeding pipe 37, a third electromagnetic valve 38, a second medicine storage tank 39, a second feeding pipe 310, and a fourth electromagnetic valve 311. The diffuser section of the Venturi tube 31 is fixedly connected to the left side wall of the box body 1. The convergent section of the Venturi tube 31 is fixedly connected to the first liquid inlet pipe 32 and the second liquid inlet pipe 34. The first liquid inlet pipe 32 is provided with the first electromagnetic valve 33. The second liquid inlet pipe 34 is provided with the second electromagnetic valve 35. The throat of the Venturi tube 31 is fixedly connected to the first feeding pipe 37. The top end of the first feeding pipe 37 is fixedly connected to the first medicine storage tank 36. The top end of the second feeding pipe 310 is fixedly connected to the second medicine storage tank 39. The bottom end of the second feeding pipe 310 is fixedly connected to the lower part of the first feeding pipe 37 in an inclined manner. The first feeding pipe 37 is provided with the third electromagnetic valve 38. The third electromagnetic valve 38 is located above the position where the first feeding pipe 37 is connected to the second feeding pipe 310. The second feeding pipe 310 is provided with the fourth electromagnetic valve 311. The first electromagnetic valve 33, the second electromagnetic valve 35, the third electromagnetic valve 38, the fourth electromagnetic valve 311, the heating wire 9, and the motor 8 are electrically connected to the control cabinet 11. In the embodiment, the first liquid inlet pipe 32 is located below the second liquid inlet pipe 34 and is used for conveying DMF solvent. The first medicine storage tank 36 is used for placing TPU particles. The DMF solvent enters the convergent section through the first liquid inlet pipe 32, is preliminarily and uniformly mixed with the TPU particles falling through the first feeding pipe 37 at the throat, and then enters the box body 1 through the diffuser section for subsequent sufficient stirring and mixing by the stirring assembly 4. The second liquid inlet pipe 34 is used for conveying a fluorine-free waterproof agent. The second medicine storage tank 39 is used for placing an extinction powder. The extinction powder enters the first feeding pipe 37 through the second feeding pipe 310. The fluorine-free waterproof agent enters the convergent section through the second liquid inlet pipe 34, is preliminarily and uniformly mixed with the extinction powder falling through the first feeding pipe 37 at the throat, and then enters the box body 1 through the diffuser section for subsequent sufficient stirring and mixing by the stirring assembly 4. In this way, the DMF solvent and the TPU particles and the fluorine-free waterproof agent and the extinction powder are preliminarily mixed by the feeding assembly 3 and then fed into the box body 1 at the same time, which is beneficial to subsequent stirring and mixing and improves the mixing efficiency. The first electromagnetic valve 33, the second electromagnetic valve 35, the third electromagnetic valve 38, the fourth electromagnetic valve 311, the motor 8, and the heating wire 9 are controlled to be opened and closed by the control cabinet according to requirements.

[0061] The stirring assembly 4 comprises a first bearing seat 41, a first hollow rotating shaft 42, stirring blades 43 and a first sealing member 44. The first bearing seat 41 is fixed to the top of the box body 1. The bottom end of the first hollow rotating shaft 42 extends out of the box body 1 through the first bearing seat 41, the top wall of the box body 1 and the bottom wall of the box body 1. The first hollow rotating shaft 42 is sealed with the box body 1. The lower part of the first hollow rotating shaft 42 is fixed with a plurality of stirring blades 43. The inside of the stirring blades 43 is provided with a serpentine channel 45. The serpentine channel 45 is communicated with the inner cavity of the first hollow rotating shaft 42. The bottom end of the hot water pipe 2 extends above the inside of the first hollow rotating shaft 42 and is provided with the first sealing member 44 between the first hollow rotating shaft 42. One end of the circulating assembly 7 extends below the inside of the first hollow rotating shaft 42 and is provided with the first sealing member 44 between the first hollow rotating shaft 42. The first hollow rotating shaft 42 rotates to drive the stirring blades 43 to rotate for stirring operation. At the same time, hot water enters the first hollow rotating shaft 42 through the hot water pipe 2, then flows through the serpentine channel 45. The serpentine channel 45 is arranged to make the hot water stay in the stirring blades 43 for a longer time to better transfer heat. The hot water flows through the serpentine channel 45 and is discharged into the first hollow rotating shaft 42. Finally, the hot water is discharged through the bottom of the first hollow rotating shaft 42 and enters the circulating assembly 7. In this way, the spinning solution is heated from the inside to the outside while being stirred.

[0062] The circulating assembly 7 comprises a circulating water tank 71, a first water pipe 72, a second water pipe 73, a circulating water pump 74, a fifth electromagnetic valve 75 and a third water pipe 76. The left side wall of the circulating water tank 71 is fixedly connected with the first water pipe 72 above. The first water pipe 72 extends below the inside of the first hollow rotating shaft 42. The first water pipe 72 is provided with the fifth electromagnetic valve 75. The bottom end of the second water pipe 73 extends below the inside of the circulating water tank 71. The upper part of the second water pipe 73 is fixedly connected with the third water pipe 76. The bottom end of the third water pipe 76 is communicated with the humidifying assembly 6. The third water pipe 76 has a contraction part 761. The hole diameter of the contraction part 761 decreases from top to bottom. The hot water pipe 2 has a diffusion part 21. The hole diameter of the diffusion part 21 increases from top to bottom. The hot water pipe 2 is provided with the sixth electromagnetic valve 12 above the diffusion part 21. The circulating water pump 74 and the sixth electromagnetic valve 12 are electrically connected with the control cabinet 11. The residual hot water discharged from the bottom end of the first hollow rotating shaft 42 enters the circulating water tank 71 through the first water pipe 72. The residual hot water in the circulating water tank 71 is pumped out by the circulating water pump 74 and is delivered to the humidifying assembly 6 through the third water pipe 76. The fifth electromagnetic valve 75 is arranged to be closed first so that the first hollow rotating shaft 42 and the stirring blades 43 are filled with hot water. The fifth electromagnetic valve 75 is opened when the hot water needs to be discharged.

[0063] By setting the contraction part 761 on the third water pipe 76, by the setting of the pipeline structure, the pressurization effect is formed, which is more conducive to the humidifying assembly 6 to atomize and spray the residual temperature water; by setting the diffusion part 21 on the hot water pipe 2, by the setting of the pipeline structure, the decompression effect is formed, which avoids the impact damage to the first hollow shaft 42. The input of hot water is controlled by the sixth electromagnetic valve 12.

[0064] The humidifying assembly 6 is arranged on the left and right sides of the first hollow shaft 42, and the humidifying assembly 6 comprises a second bearing seat 61, a second hollow shaft 62, a water collecting disc 63, a second sealing element 64, and an atomizing nozzle 65. The second bearing seat 61 is fixed to the top of the box body 1. The bottom end of the second hollow shaft 62 extends to the inside of the box body 1 through the top wall of the box body 1 and the second bearing seat 61, and is fixedly connected with the water collecting disc 63. The second hollow shaft 62 is sealingly arranged between the box body 1 and the water collecting disc 63. The bottom of the water collecting disc 63 is fixedly connected with a plurality of atomizing nozzles 65. The bottom end of the third water pipe 76 extends to the inside of the second hollow shaft 62, and the second sealing element 64 is arranged between the third water pipe 76 and the second hollow shaft 62. The left and right humidifying assemblies 6 are arranged, and the rotating atomizing nozzle 65 is combined, so that the humidification is more comprehensive and uniform. The second hollow shaft 62 rotates to drive the water collecting disc 63 to rotate, so that the atomizing nozzle 65 rotates.

[0065] The transmission assembly 5 comprises a first transmission wheel 51, a first transmission belt 52, a first double-groove transmission wheel 53, a second transmission belt 54, a second double-groove transmission wheel 55, a third transmission belt 56, and a second transmission wheel 57. The output shaft of the motor 8 is fixedly connected with the first transmission wheel 51. The upper portion of the second hollow shaft 62 on the right side is fixedly connected with the first double-groove transmission wheel 53. The first double-groove transmission wheel 53 and the first transmission wheel 51 are drivingly connected through the first transmission belt 52. The upper portion of the first hollow shaft 42 is fixedly connected with the second double-groove transmission wheel 55. The first double-groove transmission wheel 53 and the second double-groove transmission wheel 55 are drivingly connected through the second transmission belt 54. The upper portion of the second hollow shaft 62 on the left side is fixedly connected with the second transmission wheel 57. The second transmission wheel 57 and the second double-groove transmission wheel 55 are drivingly connected through the third transmission belt 56. The motor 8 rotates to drive the first transmission wheel 51 to rotate. The first double-groove transmission wheel 53 is driven to rotate through the first transmission belt 52, so that the second hollow shaft 62 on the right side rotates to drive the water collecting disc 63 on the right side to rotate, so that the atomizing nozzle 65 on the right side rotates. The first double-groove transmission wheel 53 rotates to drive the second double-groove transmission wheel 55 to rotate through the second transmission belt 54, so that the first hollow shaft 42 rotates. The second double-groove transmission wheel 55 rotates to drive the second transmission wheel 57 to rotate through the third transmission belt 56, so that the second hollow shaft 62 on the left side rotates to drive the water collecting disc 63 on the left side to rotate, so that the atomizing nozzle 65 on the left side rotates.

[0066] The temperature sensor 13, the humidity sensor 14, the discharge pipe 15 and the seventh electromagnetic valve 16 are further included, the humidity sensor 14 is fixed to the top wall inside the box body 1, the temperature sensor 13 is fixed to the right side wall of the box body 1, the detection end of the temperature sensor 13 extends to the lower part inside the box body 1, the discharge pipe 15 is fixed in communication below the left side wall of the box body 1, the seventh electromagnetic valve 16 is arranged on the discharge pipe 15, and the seventh electromagnetic valve 16, the temperature sensor 13 and the humidity sensor 14 are electrically connected with the control cabinet. The temperature sensor 13 is used for detecting the temperature of the spinning solution in real time, and feeding back to the control cabinet, so that the heating temperature of the heating wire 9 is controlled by the control cabinet, and the temperature of the spinning solution is kept at 25 DEG C or lower. The humidity sensor 14 is used for detecting the humidity inside the box body 1 in real time, and feeding back to the control cabinet, so that the humidifying assembly 6 is controlled by the control cabinet to carry out humidifying operation, and the air humidity is kept at 63-67%. The spinning solution is not easy to form a skin, and the temperature of the spinning solution does not rise too fast to cause solvent evaporation.

[0067] As shown in Figure 10 The application further provides a preparation method of the one-way moisture-conducting fabric, comprising the following steps:

[0068] S100: selecting a nylon elastic fabric to carry out desizing, setting, selecting an acid dye to carry out dyeing treatment, and drying the dyed nylon elastic fabric.

[0069] S200: water spraying finishing, selecting a fluorine-free waterproof agent R3 of Hengmu Company 50g / L, the fluorine-free waterproof agent has a biological content of 60%, the fluorine-free environmental protection high polymer material is used in the biological fluorine-free waterproof agent, so that the pollution of fluorocarbon compounds to the environment is avoided, the raw material is free of PFOA and PFOS, does not contain harmful components such as heavy metals and benzene series, and does not pollute the environment. The prepared agent is subjected to pad finishing on a Morfi setting machine, the pressure of the compression roller is 2-4kg / cm 2 Then, after being subjected to weft bending correction treatment, the elastic fabric is subjected to baking treatment by using a nine-section oven, the baking temperature is set to 160 DEG C-170 DEG C-190 DEG C-190 DEG C-190 DEG C-190 DEG C-190 DEG C-160 DEG C-160 DEG C, and the baking time is 3min.

[0070] S300: pre-shrinking, the elastic fabric after the water spraying treatment in step S200 is subjected to pre-shrinking treatment by passing through the heating and pressurizing area of a pre-shrinking machine, the pre-shrinking temperature is 150 DEG C, the pre-shrinking high-temperature area is 15s, the pre-shrinking treatment is carried out by using a mesh belt conveyor, the pre-shrinking elastic fabric is subjected to cooling setting treatment, so that the size and shape after pre-shrinking are kept.

[0071] S400: First compounding, the elastic fabric treated by pre-shrinking in step S300 is compounded by PUR hot melt adhesive in the first compounding operation of the compounding machine, the PUR hot melt adhesive is TL-9107 brand biomass adhesive of Fule Company, the glue temperature is 105℃, and the glue amount is 7g / m 2 The single-direction moisture-permeable film is compounded on the single-direction moisture-permeable film prepared by the above-mentioned preparation method by selecting diamond roller glue coating, and the single-direction moisture-permeable film is compounded on the single-direction moisture-permeable film prepared by the above-mentioned preparation method by selecting film glue coating, the operation cloth is pasted with the film to complete the first compounding, and then the compounded elastic fabric is aged, the aging temperature is 50℃, and the aging time is ≥24h. The main components of the biomass hot melt adhesive are all non-toxic and harmless natural ingredients, so it will not harm the human body and the environment. Moreover, no toxic gas or pollutants are generated during use, which can effectively improve the environmental quality of the workplace. More importantly, this hot melt adhesive only needs to use a small amount of food-grade carbohydrates, fatty acids and other organic matter, avoiding the dependence on large-scale plant and animal resources.

[0072] S500: Second compounding, the 20D nylon Trico warp-knitted base cloth is compounded for the second time, the Fule biomass hot melt adhesive is still used for the first time, the glue temperature is 115℃, the glue amount is 6g / m 2 The single-direction moisture-permeable film is compounded on the compounded elastic fabric after the aging treatment in step S400 by hot melt adhesive, and then the compounded elastic fabric is aged, the aging temperature is 50℃, and the aging time is ≥24h, to obtain the single-direction moisture-permeable fabric.

[0073] Through the three-layer compounded fabric, the surface fabric has a surface moisture resistance effect, the middle nano-micro porous film material can single-directionally guide the air to discharge the body sweat outside, the outside rainwater cannot enter, and the knitted base cloth in the inner layer can protect the film material and increase the wear resistance. The finished product RET (moisture resistance) ISO11092 method can be ≤6m 2 Pa / w. The RET value <6 is stipulated in the ISO11092-2014 standard "Determination of physiological effects of textiles under steady-state conditions for resistance to heat and water vapor", which is equivalent to extremely breathable, and a more comfortable experience can be brought under intense exercise. The composite fabric of the organizational structure has a particularly good single-direction air guiding effect.

[0074] The advantages of the preparation method are:

[0075] 1. Environmental protection process: the surface fabric operation is fluorine-free waterproof, can repel water and resist dirt, the intermediate film material does not contain PFAS perfluorinated compound, perfluoro and polyfluoro alkyl substance is referred to as PFAS, which is a kind of artificial synthetic compound, widely used in various industrial production processes. Because it takes hundreds of years to decompose in soil and water, it is called "persistent organic pollutants (POPs)". PFAS has been detected in drinking water sources, rivers and lakes, soil and sediments and other environments. PFAS is difficult to decompose in the environment and is easily transferred. When humans and animals ingest PFAS, PFAS will be toxic in the body. The composite adhesive uses PUR bio-based reactive hot melt adhesive, and the source of the production raw material is partially renewable, effectively reducing greenhouse gas emissions and greatly reducing carbon footprint.

[0076] 2. It has excellent one-way air guiding performance: when the human body sweats, a considerable part of the water vapor evaporated by the skin and the water vapor in the clothing microclimate passes through the fabric in the form of diffusion. The finished product of the fabric process has excellent waterproof ability, and the outside rainwater cannot enter the inner layer of the clothing, while the sweat generated by human movement can be discharged outside through the nano membrane material microporous structure, which can better meet the outdoor sports environment.

[0077] 3. Elasticity: the product of the process has good elastic elongation and elastic recovery. The nano membrane material has good elastic elongation effect with polyurethane as the carrier. The surface woven fabric is spandex elastic fabric, and the inner layer is knitted base cloth, etc. The sandwich structure composite makes the overall elastic effect remain, and the sports wear is more comfortable and flexible.

[0078] 4. Sound reduction: the nano film has good elastic elongation and elastic recovery, and belongs to the effect of nano fiber layer by layer, with very soft hand feeling. The fabric compounded by the film material has excellent sound reduction effect, and the sound reduction characteristics of the three-layer composite functional fabric are more in line with the needs of fashion and sports.

[0079] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that; it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of making a one-way moisture management film, characterized by, It comprises the following steps: S1: preparing a spinning solution, dissolving a high molecular polyurethane in a solvent, stirring to prepare a spinning solution with a mass concentration of 25-35%, then adding extinction powder and fluorine-free waterproof agent into the spinning solution and stirring uniformly; S2: electrospinning, sending the spinning solution prepared in step S1 into a spinning nozzle, flowing out at a constant rate, applying a high-voltage electrostatic field outside the spinning nozzle, charging the spinning solution, deforming the spinning solution jet under the action of the electric field force, and finally forming a fiber; S3: collecting a film, continuously depositing the fiber on the collector during the electrospinning process to form a fiber film; S4: post-processing, post-processing the fiber film collected in step S3 to obtain a one-way moisture transfer film; In step S1, the high molecular polyurethane is TPU particles, the solvent is DMF solvent, the TPU particles and DMF solvent are stirred at a speed of 700-900 rmp / min, the addition amount of extinction powder and fluorine-free waterproof agent is 1-4% of the volume of the spinning solution, the extinction powder and fluorine-free waterproof agent are stirred at a speed of 300-500 rmp / min after being added, and the temperature of the spinning solution is controlled to be ≤25℃, the air humidity is 63-67%, and the viscosity is 1200-1500 cps; In step S2, the outflow rate of the spinning nozzle is 2-4 mL / h; In step S3, the strength of the working voltage is 22-27 kV, and the rotating speed of the collector is 230-270 rpm / min; Step S4 specifically comprises: S41: selecting a low surface tension agent and distilled water to mix and stir at a ratio of 1:18-20, then adding an isocyanate crosslinking agent to stir uniformly, to obtain a finishing solution; S42: The finishing solution prepared in step S41 is put into a trough, and the fiber film obtained in step S3 is passed through the trough to be finished by padding, so that the finishing solution penetrates into the inner layer of the fiber film on both sides. After padding, the fiber film is subjected to pressing treatment, and the pressure is set to 0.15-0.25 kg / cm 2 ; S43: drying and winding the fiber film treated in step S42 at a vehicle speed of 9-11 m / min to obtain a one-way moisture transfer film; In step S41, the low surface tension agent is a polyurethane high molecular material, an acrylic high molecular material, or a silicone high molecular material.

2. The preparation method of the one-way moisture transfer film according to claim 1, wherein: In step S1, a stirring device is used for stirring operation; The stirring device comprises a box body, a feeding assembly, a stirring assembly, a transmission assembly, a humidifying assembly, a circulating assembly, a motor, heating wires, and a hot water pipe; The upper part of the left side wall of the box body is fixedly connected with the feeding assembly; The top of the box body is provided with the stirring assembly, the humidifying assembly, and the motor, and the motor, the humidifying assembly, and the stirring assembly are drivingly connected through the transmission assembly; The stirring end of the stirring assembly is located in the interior of the box body, the humidifying end of the humidifying assembly is located above the interior of the box body and above the stirring end; One end of the hot water pipe is communicated with a hot water source, the other end of the hot water pipe is communicated with the stirring assembly, one end of the circulating assembly is communicated with the stirring assembly, and the other end of the circulating assembly is communicated with the humidifying assembly; A heating cavity is formed in the side wall of the box body, and the heating cavity is fixedly provided with the heating wires.

3. The preparation method of the one-way moisture transfer film according to claim 2, further comprising a control cabinet. ​ The feeding assembly comprises a Venturi tube, a first liquid inlet pipe, a first electromagnetic valve, a second liquid inlet pipe, a second electromagnetic valve, a first medicine storage tank, a first feeding pipe, a third electromagnetic valve, a second medicine storage tank, a second feeding pipe, and a fourth electromagnetic valve; The diffuser section of the Venturi tube is fixedly connected to the left side wall of the box body, the convergent section of the Venturi tube is fixedly connected with the first liquid inlet pipe and the second liquid inlet pipe, the first liquid inlet pipe is provided with the first electromagnetic valve, the second liquid inlet pipe is provided with the second electromagnetic valve, the throat of the Venturi tube is fixedly connected with the first feeding pipe, the top end of the first feeding pipe is fixedly connected with the first medicine storage tank, the top end of the second feeding pipe is fixedly connected with the second medicine storage tank, the bottom end of the second feeding pipe is fixedly connected to the lower part of the first feeding pipe in an inclined manner, the first feeding pipe is provided with the third electromagnetic valve, the third electromagnetic valve is located above the position where the first feeding pipe is connected with the second feeding pipe, and the second feeding pipe is provided with the fourth electromagnetic valve; The first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the heating wire, and the motor are electrically connected with the control cabinet.

4. The preparation method of the one-way moisture management film according to claim 3, wherein: The stirring assembly comprises a first bearing seat, a first hollow rotating shaft, stirring blades, and a first sealing member; The top of the box body is fixedly provided with the first bearing seat, the bottom end of the first hollow rotating shaft extends out of the box body through the first bearing seat, the top wall of the box body, and the bottom wall of the box body, and the first hollow rotating shaft is sealingly arranged with the box body; The lower part of the first hollow rotating shaft is fixedly provided with a plurality of stirring blades, the inside of the stirring blades is provided with a serpentine channel, and the serpentine channel is in communication with the inner cavity of the first hollow rotating shaft; The bottom end of the hot water pipe extends above the inside of the first hollow rotating shaft and is provided with the first sealing member between the first hollow rotating shaft, and one end of the circulating assembly extends below the inside of the first hollow rotating shaft and is provided with the first sealing member between the first hollow rotating shaft.

5. The preparation method of the one-way moisture management film according to claim 4, wherein: The circulating assembly comprises a circulating water tank, a first water pipe, a second water pipe, a circulating water pump, a fifth electromagnetic valve, and a third water pipe; The upper part of the left side wall of the circulating water tank is fixedly connected with the first water pipe, the first water pipe extends below the inside of the first hollow rotating shaft, and the first water pipe is provided with the fifth electromagnetic valve; The bottom end of the second water pipe extends below the inside of the circulating water tank, the upper part of the second water pipe is fixedly connected with the third water pipe, and the bottom end of the third water pipe is connected with the humidifying assembly; The third water pipe has a convergent part, and the hole diameter of the convergent part decreases from top to bottom; The hot water pipe has a diffuser part, the hole diameter of the diffuser part increases from top to bottom, and the hot water pipe is provided with the sixth electromagnetic valve above the diffuser part; The circulating water pump and the sixth electromagnetic valve are electrically connected with the control cabinet.

6. The preparation method of the one-way moisture management film according to claim 5, wherein: The humidifying assembly comprises two humidifying assemblies, which are respectively located on the left and right sides of the first hollow rotating shaft. The humidifying assembly comprises a second bearing seat, a second hollow rotating shaft, a water collecting disc, a second sealing member and atomizing nozzles. The second hollow rotating shaft is arranged in sealing connection with the box body, and the bottom of the water collecting disc is fixedly connected with a plurality of atomizing nozzles. The bottom end of the third water pipe extends into the second hollow rotating shaft, and the second hollow rotating shaft is provided with a second sealing member.

7. The preparation method of the one-way moisture management film according to claim 6, wherein: The transmission assembly comprises a first transmission wheel, a first transmission belt, a first double-groove transmission wheel, a second transmission belt, a second double-groove transmission wheel, a third transmission belt and a second transmission wheel. The output shaft of the motor is fixedly connected with the first transmission wheel, the upper portion of the second hollow rotating shaft on the right side is fixedly connected with the first double-groove transmission wheel, and the first double-groove transmission wheel and the first transmission wheel are in transmission connection through the first transmission belt. The upper portion of the first hollow rotating shaft is fixedly connected with the second double-groove transmission wheel, and the first double-groove transmission wheel and the second double-groove transmission wheel are in transmission connection through the second transmission belt. The upper portion of the second hollow rotating shaft on the left side is fixedly connected with the second transmission wheel, and the second transmission wheel and the second double-groove transmission wheel are in transmission connection through the third transmission belt. Further comprising a temperature sensor, a humidity sensor, a discharge pipe and a seventh electromagnetic valve. The top wall in the box body is fixedly connected with the humidity sensor, the right side wall of the box body is fixedly connected with the temperature sensor, and the detection end of the temperature sensor extends to the lower portion in the box body. The lower portion of the left side wall of the box body is fixedly connected with the discharge pipe, and the discharge pipe is provided with the seventh electromagnetic valve. The seventh electromagnetic valve, the temperature sensor and the humidity sensor are electrically connected with the control cabinet.

8. A method of making a one-way wicking fabric, characterized in that, The method comprises the following steps: S100: selecting elastic fabric for desizing, setting, dyeing and drying treatment; S200: water finishing, the elastic fabric treated in step S100 is subjected to padding finishing, and then subjected to baking treatment after being subjected to weft bending correction and flattening treatment, the baking temperature is 180 DEG C, and the baking time is 2-4 min; S300: pre-shrinking, the elastic fabric subjected to water finishing in step S200 is subjected to pre-shrinking treatment in the heating and pressurizing area of a pre-shrinking machine, and then subjected to cooling setting treatment; S400: first compounding, the elastic fabric subjected to pre-shrinking treatment in step S300 is compounded on the upper portion of the one-way moisture management film prepared by the method of claim 1-7, and then the compounded elastic fabric is subjected to aging treatment; S500: second compounding, the knitted base fabric is compounded on the lower portion of the one-way moisture management film of the compounded elastic fabric subjected to aging treatment in step S400 by hot melt adhesive, and then the compounded elastic fabric is subjected to aging treatment, thereby obtaining the one-way moisture management fabric; In step S100, the elastic fabric is selected from spandex elastic fabric, nylon elastic fabric or mechanical elastic fabric; In step S200, the water-repellent agent is a bio-based fluorine-free water-repellent agent, and the roll pressure is 2-4 kg / cm 2 Nine-section ovens are used for baking, and the baking temperature is set to 160℃-170℃-190℃-190℃-190℃-190℃-190℃-160℃-160℃. In step S300, the pre-shrinking temperature is 140-160 DEG C, and the pre-shrinking time is 15 s. In step S400, the first compounding treatment is performed by using the PUR hot melt adhesive with the brand TL-9107, the glue temperature is 103-108℃, and the glue amount is 6-8g / m 2 The diamond-shaped roller is selected for gluing, the ripening temperature is 45-55℃, and the ripening time is ≥24h. In step S500, the second compounding treatment is performed using PUR hot melt adhesive with the trade name of TL-9107, the glue temperature is 113-118℃, the glue application amount is 5-7g / m 2 , the aging temperature is 45-55℃, and the aging time is ≥24h.

Citation Information

Patent Citations

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