Continuous manufacturing equipment of high-breathable PTFE nanofiber waterproof and moisture-permeable fabric

Abstract

The application relates to a continuous manufacturing equipment of a high-breath PTFE nanofiber waterproof and moisture-permeable fabric, which comprises, sequentially arranged along a material direction, a base cloth unwinding device, a film coating device, a coagulation tank, a washing device, a first tension control device, a drying device, a cooling roller, a gluing roller, a pre-pressing device, a second tension control device, a hot-pressing device, a moisture spraying device, a curing device and a fabric winding device; further comprising a stirring device, which is used for stirring PTFE high-viscosity microemulsion to obtain uniform coating liquid and inputting the coating liquid into the film coating device; and further comprising a gluing assembly, which is used for cooperating with the gluing roller to perform a gluing process. Compared with the prior art, the application can realize continuous production of the PTFE waterproof and moisture-permeable film based on the advantage of a high-viscosity microemulsion phase separation method.

Description

Technical Field

[0001] This invention relates to a waterproof and breathable fabric manufacturing equipment, and more particularly to a continuous manufacturing equipment for a highly breathable PTFE nanofiber waterproof and breathable fabric. Background Technology

[0002] Waterproof and breathable fabrics, as a typical representative of functional textiles, prevent rainwater penetration while allowing sweat and moisture produced by the body to escape, earning them the nickname "breathable fabrics." Currently, waterproof and breathable fabrics are generally divided into three categories: high-density fabrics, coated fabrics, and laminated fabrics. Laminated composite fabrics can simultaneously exhibit excellent water resistance and breathability. Laminated composite fabrics are functional fabrics with a multi-layered composite structure, whose core layer is a waterproof and breathable membrane material that combines waterproof and breathable properties. This waterproof and breathable membrane prevents liquid water from penetrating into the fabric's interior while allowing sweat to pass through as water vapor molecules, preventing condensation and buildup between the skin and the fabric, thus preventing stuffiness and a damp, cold feeling, and ensuring comfort.

[0003] Commonly used waterproof and breathable membranes include PU membranes, TPU membranes, and PTFE membranes. PU and TPU membranes are hydrophilic non-porous membranes; their surface and interior lack pore structures, making them completely impermeable to water and thus exhibiting extremely high water permeability. However, a drawback of hydrophilic non-porous membranes is that they can only effectively conduct water molecules when in direct contact with liquid water or sweat. Under high humidity conditions, the hydrophilic groups can only capture a limited number of water molecules, hindering rapid water conduction. PTFE membranes, on the other hand, are membrane materials with a large number of interconnected micron-sized pores. These interconnected pores provide channels for water vapor transmission, resulting in excellent breathability. Furthermore, this membrane is made from hydrophobic polytetrafluoroethylene, which can resist the penetration of pressurized liquid water, providing good waterproofing.

[0004] The main methods for preparing PTFE membranes include biaxial stretching, electrospinning, and phase separation. The conventional process involves mixing polytetrafluoroethylene (PTFE) dispersion resin with liquid additives, calendering the mixture into sheets, and then biaxially stretching the sheets to obtain a PTFE microporous membrane. The process flow is: PTFE resin, additives (selection) → mixing → calendering → biaxial stretching → winding. The pore size of films obtained by the conventional biaxial stretching method is 0.3–5 μm, making it difficult to produce films with pore sizes below 0.3 μm. The mechanical properties of PTFE nanofiber membranes prepared by electrospinning are relatively poor. It generally requires the assistance of a spinning carrier such as PVA. The formation of pure PTFE nanofibers relies on high-temperature sintering to decompose the spinning carrier, resulting in a long preparation process and low yield, thus limiting the application performance of electrospun fiber-based waterproof and breathable membranes. Phase separation method has the advantages of simple manufacturing process, low cost, continuous production capability, and adjustable pore structure. The waterproof and breathable membrane prepared by this method has structural advantages such as small pore size and high porosity, making it an ideal choice for the core functional layer of laminated waterproof and breathable fabrics. However, there is almost no continuous equipment for this method to prepare PTFE membranes, so there is an urgent need to develop a continuous manufacturing equipment for highly breathable PTFE waterproof and breathable fabrics. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a continuous manufacturing equipment for highly breathable PTFE nanofiber waterproof and breathable fabric. Based on the advantages of the high-viscosity microemulsion phase separation method, continuous production of PTFE waterproof and breathable membrane can be realized.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] This invention provides a continuous manufacturing equipment for highly breathable PTFE nanofiber waterproof and breathable fabric, comprising a base fabric unwinding device, a coating device, a coagulation tank, a washing device, a first tension control device, a drying device, a cooling roller, a gluing roller, a pre-pressing device, a second tension control device, a hot pressing device, a moisture spraying device, a curing device, and a fabric winding device arranged sequentially along the material direction.

[0008] It also includes a stirring device, which is used to stir the high-viscosity PTFE microemulsion to obtain a uniform coating liquid and input it into the coating device;

[0009] It also includes a gluing assembly, which is used to cooperate with the gluing roller to perform the gluing process.

[0010] Furthermore, the stirring device includes a mixing container and a stirrer disposed in the mixing container.

[0011] Furthermore, the stirring device is an anchor frame stirrer, a double-layer paddle stirrer, or a combination of both. The stirring device stirs the PTFE high-viscosity microemulsion at high speed to obtain a uniform coating liquid.

[0012] Furthermore, the scraper in the coating device is a "J"-shaped blade, employing a gradient scraping method with a first gap of 0.3–1.0 mm and a second gap of 0.10–0.50 mm. This allows for precise control of the coating thickness, ensuring the uniformity and smoothness of the PTFE waterproof and breathable membrane.

[0013] Furthermore, the solidification tank has four layers, with the first layer having a length of 15-20m, the second and third layers having a length of 10-15m, and the last layer having a length of 18-22m;

[0014] The coagulation tank is equipped with an ultrasonic concentration meter.

[0015] The ultrasonic concentration meter is an ultrasonic multi-beam concentration sensor;

[0016] The washing device is a spray-type washing device, including a washing tank and spray heads, and also includes a purification device with a self-purification function, thereby realizing the recycling of water.

[0017] The purification device includes a filter;

[0018] The washing device includes 5 to 8 tanks.

[0019] Furthermore, the drying device includes a dryer and a clamp, which applies tension to the PTFE membrane to prevent the membrane from shrinking and causing a bark-like effect on the fabric surface due to shrinkage differences during subsequent fabric lamination.

[0020] Furthermore, the tension control device is a pair of five-roller tension control devices, which prevents the PTFE membrane from shrinking while giving the PTFE membrane traction.

[0021] Furthermore, the gluing assembly includes a pressurizing device, a glue storage device, and a metering pump connected in sequence, and the output end of the metering pump delivers the glue liquid to the gluing roller through a pipeline.

[0022] Furthermore, the gluing assembly also includes a baffle connected to an automatic lifting device. By sensing the distance between the baffle and the gluing roller, the gap between them can be changed to automatically remove excess glue and achieve precise gluing.

[0023] Furthermore, the temperature of the hot pressing device is 80–100°C, and the hot pressing pressure is 100–150 kPa;

[0024] The bottom of the moisture spraying device is provided with a spray pipe and an atomizer. The spray pipe is provided with a number of spray holes, which are evenly arranged along the length of the spray pipe.

[0025] Compared with the prior art, the present invention has the following technical advantages:

[0026] (1) The present invention provides a continuous manufacturing equipment for high-permeability PTFE waterproof and breathable fabric. Based on the advantages of the high-viscosity microemulsion phase separation method, it can realize the continuous production of PTFE waterproof and breathable membrane.

[0027] (2) The continuous manufacturing equipment for high-breathable PTFE waterproof and breathable fabric of the present invention has a combined agitator design that combines an anchor frame agitator with a double-layer paddle agitator to prevent wall adhesion and ensure that the raw materials are fully agitated to obtain a uniform casting liquid.

[0028] (3) The continuous manufacturing equipment for high-breathable PTFE waterproof and breathable fabric of the present invention features an automated and high-precision ultrasonic concentration meter to ensure that the concentration of the solution in the coagulation tank is within a certain range, thereby achieving precise control of the quality of the waterproof and breathable membrane.

[0029] (4) The continuous manufacturing equipment for high-breathable PTFE waterproof and breathable fabric of the present invention has an adjustable baffle design for the glue roller device, which makes the glue application amount accurate and ensures the precise lamination of high-breathable PTFE waterproof and breathable fabric without wasting glue.

[0030] (5) The continuous manufacturing equipment for high-breathable PTFE waterproof and breathable fabric of the present invention has a tension adjustment device design that enables stable control of the tension required when the fabric and the waterproof and breathable membrane are combined, ensuring that the fabric and the membrane are aligned and avoiding misalignment and wrinkling, which would affect the actual use of the fabric.

[0031] (6) The continuous manufacturing equipment for high-breathable PTFE waterproof and breathable fabric of the present invention has a moisture spraying device design that accelerates the curing of the adhesive and ensures the composite efficiency and composite strength of the fabric and the film. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a continuous manufacturing equipment for a high-permeability PTFE waterproof and breathable membrane according to the present invention;

[0033] Figure 2 This is a schematic diagram of the stirring rod in a continuous manufacturing equipment for a high-permeability PTFE waterproof and breathable membrane according to the present invention;

[0034] Figure 3 This is a schematic diagram of the scraper and its base plate in a continuous manufacturing equipment for a high-permeability PTFE waterproof and breathable membrane according to the present invention.

[0035] Figure 4 This is a top view of the drying device in a continuous manufacturing equipment for a high-permeability PTFE waterproof and breathable membrane according to the present invention.

[0036] Figure 5 This is a schematic diagram of the glue roller in a high-permeability PTFE waterproof and breathable membrane composite device of the present invention.

[0037] Explanation of markings in the diagram:

[0038] 1-Base fabric unwinding device; 2-Stirring device; 3-Coating device; 4-Coagulation tank; 5-Washing device; 6-First tension control device; 7-Drying device; 8-Cooling roller; 9-Gluing roller; 10-Baffle; 11-Pressurizing device; 12-Glue storage device; 13-Heating jacket; 14-Metering pump; 15-Conduit; 16-Fabric unwinding device; 17-Pre-compression device; 18-Second tension control device; 19-Hot pressing device; 20-Moisture spraying device; 21-Curing device; 22-Fabric winding device; 23-Stirrer; 24-Ultrasonic concentration meter; 25-Purification device; 26-Spraying device. Detailed Implementation

[0039] Overall, to ensure the continuous and efficient production of highly breathable PTFE waterproof and breathable membranes, this invention provides a continuous manufacturing equipment for highly breathable PTFE waterproof and breathable fabrics, as detailed in [link to details]. Figure 1 As shown, it includes:

[0040] Base fabric unwinding device 1;

[0041] Connect the stirring device 2 to the coating device 3 to apply a PTFE membrane.

[0042] The PTFE membrane is transported to the coagulation tank 4 connected to the coating device 3;

[0043] The PTFE membrane is transported to a water washing device 5 connected to the coagulation tank 4.

[0044] The PTFE membrane is conveyed to the first tension control device 6 and dried using the drying device 7, ready for lamination;

[0045] The PUR adhesive in the adhesive storage device 12 is transported to the adhesive roller 9 through the pressurizing device 11, heating jacket 13, metering pump 14, and conduit 15.

[0046] The above-mentioned PUR adhesive is applied to the PTFE film to be laminated by a baffle 10 located directly above the glue roller 9, which controls the amount of adhesive applied.

[0047] Fabric unwinding device 16;

[0048] The PTFE film conveyed by the top roller 9 is combined with the fabric of the unwinding device 16 by the pre-compression device 17.

[0049] The material is conveyed to the hot pressing device 19 for composite bonding using the second tension control device 18;

[0050] After the composite fabric is cured by the moisture spraying device 20 and the curing device 21, it is wound up by the fabric winding device 22.

[0051] For some specific implementation methods, please refer to [link / reference]. Figure 2 As shown, the stirring device 2 can be an anchor frame stirrer, a double-layer paddle stirrer, or a combination of both. After the PTFE high-viscosity microemulsion is stirred at high speed, a uniform coating liquid is obtained.

[0052] For some specific implementation methods, please refer to [link / reference]. Figure 3 As shown, the scraper in the coating device 3 is a "J"-shaped blade, which adopts gradient scraping. The first gap is 0.3-1.0 mm, and the second gap is 0.10-0.50 mm, which can achieve precise control of the coating thickness and ensure the uniformity and flatness of the PTFE waterproof and breathable membrane.

[0053] In some specific embodiments, the coagulation tank 4 has four layers: the first layer is 15-20m long, the second and third layers are 10-15m long, and the last layer is 18-22m long. The ultrasonic concentration meter uses an ultrasonic multi-beam concentration sensor to calculate the conventional arithmetic mean of all measured values, ensuring that the concentration of the coagulation bath in the overall coagulation tank 4 remains within a certain range.

[0054] In some specific embodiments, the water washing device 5 is a spray type, and the spray device 25 can be either a pendant type or a vertical type of nozzle. The installation distance from the bottom of the water washing tank is 75mm to 150mm, and the distance from the wall is 50 to 100mm. The purification device 25 with self-cleaning function realizes the recycling of water, and uses the force of the spray to accelerate the removal of solvent.

[0055] In some specific embodiments, the washing device 5 has a total of 5 to 8 tanks, each with a total length of not less than 10 to 20 m, to achieve no solvent residue and avoid the collapse of the pore structure caused by subsequent drying solvent dissolving the pores.

[0056] In some specific embodiments, the drying device 7 uses hot air drying at a temperature of 100℃ to 150℃ and has a total length of not less than 20 to 30m.

[0057] For some specific implementation methods, please refer to [link / reference]. Figure 4 As shown, the drying device uses clamps on both sides to apply tension to the PTFE membrane, preventing the membrane from shrinking and causing a bark-like effect on the fabric surface due to shrinkage differences during subsequent fabric lamination.

[0058] In some specific embodiments, the first tension control device 6 is a pair of five-roller tension control devices, which prevents the PTFE film from shrinking while giving it a certain traction force, so as to make the drying efficiency higher and the drying effect better.

[0059] In some specific embodiments, the thickness of the baffle 10 is not less than 10-50cm, and the material can be stainless steel, polytetrafluoroethylene, etc.

[0060] In some specific embodiments, the hot pressing device 13 has a temperature of 80-100°C, a pressure of 100-150 kPa, and a total length of not less than 1-2 m.

[0061] In some specific embodiments, the bottom of the moisture spraying device 14 is connected to a spray pipe and an atomizer, and the spray pipe is provided with a plurality of spray holes, which are evenly arranged along the length of the spray pipe.

[0062] In some specific embodiments, the moisture spraying device 14 uses a humidity sensor to provide real-time feedback and intelligently adjust the spraying volume, with the humidity adjusted between 80% and 100%.

[0063] In some specific implementations, the vehicle speed is adjusted to 15-20 m / min.

[0064] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0065] It should be emphasized that any device or component not explicitly described in this invention can be considered as conventional in the art and commercially available.

[0066] Example 1

[0067] This embodiment provides a continuous manufacturing equipment for highly breathable PTFE waterproof and moisture-permeable fabric, including a stirring device, a coagulation tank, a washing tank, a drying device, a gluing device, a hot-pressing laminating device, a tension roller, and a moisture curing device. The entire device is as follows: Figure 1 As shown. Specifically includes:

[0068] Base fabric unwinding device 1;

[0069] Connect the stirring device 2 to the coating device 3 to apply a PTFE membrane.

[0070] The PTFE membrane is transported to the coagulation tank 4 connected to the coating device 3;

[0071] The PTFE membrane is transported to a water washing device 5 connected to the coagulation tank 4.

[0072] The PTFE membrane is conveyed to the first tension control device 6 and dried using the drying device 7, ready for lamination;

[0073] The PUR adhesive in the adhesive storage device 12 is transported to the adhesive roller 9 through the pressurizing device 11, heating jacket 13, metering pump 14, and conduit 15.

[0074] The above-mentioned PUR adhesive is applied to the PTFE film to be laminated by a baffle 10 located directly above the glue roller 9, which controls the amount of adhesive applied.

[0075] Fabric unwinding device 16;

[0076] The PTFE film conveyed by the top roller 9 is combined with the fabric of the unwinding device 16 by the pre-compression device 17.

[0077] The material is conveyed to the hot pressing device 19 for composite bonding using the second tension control device 18;

[0078] After the composite fabric is cured by the moisture spraying device 20 and the curing device 21, it is wound up by the fabric winding device 22.

[0079] The stirring device 2 is a combination of an anchor frame stirrer and a double-layer paddle stirrer. After the PTFE high-viscosity microemulsion is stirred at high speed, a uniform coating liquid with a viscosity of 3000cps is obtained.

[0080] The scraper in the coating device 3 is a "J"-shaped blade, which adopts a gradient scraping method. The first control gap is 0.3mm and the second control gap is 0.2mm, which can achieve precise control of the coating thickness and ensure the uniformity and flatness of the PTFE waterproof and breathable membrane.

[0081] The coagulation tank 4 has four layers: the first layer is 15m long, the second and third layers are 10m long, and the last layer is 18m long. The ultrasonic concentration meter uses an ultrasonic multi-beam concentration sensor to calculate the conventional arithmetic mean of all measured values, ensuring that the concentration of the coagulation bath in the entire coagulation tank 4 remains within a certain range.

[0082] The water washing device 5 has a self-cleaning function to recycle water, and uses an upright nozzle installed 75mm from the bottom of the washing tank and 50mm from the wall. The spray pattern of the nozzle can be changed to utilize impact force to accelerate solvent removal.

[0083] The washing device 5 has a total of 6 tanks, each with a total length of 15m, which ensures that there is no solvent residue and avoids the collapse of the pore structure caused by the solvent dissolving the pores during subsequent drying.

[0084] The drying device 7 uses hot air drying at a temperature of 120℃ and has a total length of 20m. Three pairs of rectangular clamps on the left and right sides of the drying device apply tension to the PTFE membrane to prevent shrinkage and the resulting bark-like effect on the fabric surface during subsequent fabric lamination due to shrinkage differences.

[0085] The first tension control device 6 is a pair of five-roller tension control devices. The tension is to prevent the PTFE film from shrinking while giving it a certain traction force, so as to make the drying efficiency higher and the drying effect better.

[0086] The baffle 10 is 20cm thick, and the gap between the baffle and the glue roller is automatically adjusted according to the amount of excess glue. The baffle 10 is made of stainless steel. Connected to an automatic lifting device, the baffle 10 senses the distance to the glue roller and adjusts the gap accordingly, automatically removing excess glue for precise application. The automatic lifting device can be an industrial robotic arm or an existing automatic lifting frame.

[0087] The hot pressing device 13 operates at a temperature of 80°C and a pressure of 100 kPa, with a total length of 1 m.

[0088] The bottom of the moisture spraying device 14 is connected to a spray pipe and an atomizer. The spray pipe is an enhanced high-pressure PE spray pipe, and the atomizer is a high-pressure automatic sprayer. It is highly efficient, has low labor intensity, can operate continuously, and has a direct spray range of 7 to 11 meters.

[0089] The moisture spraying device 14 uses a humidity sensor to provide real-time feedback and intelligently controls the spraying rate to 500g / h and the humidity to 90%±1%.

[0090] The vehicle speed is adjusted to 15 m / min.

[0091] Application Example 1

[0092] The specific process for preparing a highly breathable PTFE waterproof and moisture-permeable composite fabric using the equipment in this embodiment is as follows:

[0093] (1) Preparation of PTFE membrane: The base fabric is fed into the unwinding device 1, and the overall speed is controlled at 15m / min. The high viscosity PTFE microemulsion is thoroughly stirred by the stirring device 2 and then transported to the coating device 3. After being coated on the base fabric by the gradient scraping device 3 (the first gap is 0.3mm and the second gap is 0.2mm), the membrane enters the coagulation tank 4 together for 5min to coagulate. The water washing device 5 uses vertical spray rinsing for 7min. The membrane is then conveyed with stable tension by the first tension control device 6 and tensioned by the special clamps on the left and right sides inside the drying device 7 to prevent the PTFE membrane from shrinking. The membrane is dried with hot air at 120℃ for 2min and cooled by the cooling roller 8 for 15s to obtain the PTFE membrane to be laminated.

[0094] (2) Applying adhesive: Set the pressure of the pressurizing device 11 to 5MPa and the temperature of the heating jacket 13 to 100℃. Use the metering pump 14 and the conduit 15 to transport PUR hot melt adhesive with a viscosity of 3000cps and apply it to the groove of the adhesive roller 9. Use the baffle 10 with a temperature of 100℃ and a gap of 1mm to scrape off the excess adhesive. The roller rotates to evenly apply the PUR hot melt adhesive to the PTFE membrane to achieve high air permeability.

[0095] (3) Fabric lamination: The PTFE film with adhesive obtained in the second step above and the fabric unwound by the unwinding device 16 are passed through the pre-compression device 17 with a pressure of 0.4MPa, and under the action of the tension stretching device 18, they enter the hot pressing device 19 with a total length of 2m, a temperature of 120℃, and a heat bonding pressure of 0.5MPa for hot pressing lamination. Under the action of the moisture spraying device 20 and the curing device 21, the PUR hot melt adhesive reacts and cures with the water mist, and finally a highly breathable PTFE waterproof and breathable composite fabric is obtained and wound up on the winding device 22.

[0096] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric, characterized by, It comprises base cloth unwinding device (1), film coating device (3), coagulation tank (4), water washing device (5), first tension control device (6), drying device (7), cooling roll (8), glue roll (9), pre-press device (17), second tension control device (18), hot pressing device (19), moisture spraying device (20), curing device (21), fabric winding device (22) arranged in turn along the material direction; It also comprises stirring device (2), which is used for stirring PTFE high viscosity microemulsion to obtain uniform coating liquid and inputting into film coating device (3). It also comprises gluing assembly, which is used for gluing process cooperating with glue roll (9). The doctor blade in film coating device (3) is "J" type blade, which adopts gradient type doctor blade, the first gap is 0.3~1.0mm, the second gap is 0.10~0.50mm, which can realize accurate control of film coating thickness and ensure uniformity and flatness of PTFE waterproof and moisture permeable film. The coagulation tank (4) is provided with four layers, the first layer is 15~20m long, the second layer and the third layer are 10~15m long, and the last layer is 18~22m long. The coagulation tank (4) is provided with ultrasonic concentration meter (24), The ultrasonic concentration meter (24) is ultrasonic multi-beam concentration sensor. The water washing device (5) is spray type water washing device, which comprises water washing tank and spray head, and also comprises purification device (25) with self-purification function, so as to realize recycling of water. The purification device (25) comprises filter. The water washing device (5) comprises 5~8 tanks. The drying device (7) comprises drying machine and clamp, the clamp holds tension of PTFE film, avoiding shrinkage of film to cause bark effect of fabric surface due to shrinkage difference during subsequent fabric compounding.

2. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 1, characterized in that, The stirring device (2) comprises mixing container and stirrer (23) arranged in the mixing container.

3. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 1, characterized in that, The stirring device (2) is anchor frame type stirrer, double layer paddle type stirrer or combination of the two, which obtains uniform coating liquid after high speed stirring of PTFE high viscosity microemulsion.

4. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 1, characterized in that, The tension control device (6) is a pair of five roll tension control device, which prevents PTFE film from shrinking and gives PTFE film traction at the same time.

5. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 1, characterized in that, The gluing assembly comprises pressure device (11), glue storage device (12) and metering pump (14) connected in turn, the output end of metering pump (14) delivers glue liquid to glue roll (9) through pipeline.

6. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 5, characterized in that, The gluing assembly further comprises baffle (10), which is connected with automatic lifting device, changes gap between the two by sensing distance from glue roll, automatically removes excess glue liquid, so as to realize accurate gluing.

7. The continuous manufacturing apparatus of a high-breathable PTFE nanofiber waterproof and moisture-permeable fabric according to claim 6, characterized in that, The temperature of hot pressing device (13) is 80~100℃, and the hot pressing pressure is 100~150kPa. The bottom of moisture spraying device (14) is provided with spray pipe and atomizer, the spray pipe is provided with a plurality of spray holes, which are uniformly arranged along the length direction of the spray pipe.

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