Waterproof production process of nylon warp-knitted fabric

Abstract

The invention relates to the technical field of textile fabric production, in particular to a waterproof production process of nylon warp-knitted fabric, aims to solve the technical problems of fragility and tension control defects of a waterproof layer in the prior art, and is mainly realized through the following technical scheme. The knitted fabric is of a double-layer structure and is formed by blending chinlon and spandex, the waterproof production process of the knitted fabric comprises the steps of knitted fabric weaving, oil removing and refining, pre-treatment sizing, dyeing, post-treatment sizing, finished product inspection and the like, and the whole texture structure adopts two-needle weaving and high-needle high-traction weaving. The density of the fabric is improved in the four directions of machine type, weaving conditions, high-elastic yarn and post-processing, so that the fabric has a good waterproof effect, tension of the fabric is relieved in the drying and padding process, the fabric is prevented from being continuously in a tensioned state, and the quality of a finished fabric product is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile fabric production, and in particular to a waterproof production process for nylon warp knitted fabric. Background Art

[0002] As people's living standards continue to improve, their requirements for clothing comfort and functionality are also getting higher and higher. Warp knitted fabrics, as an indispensable product in life, also have new requirements for further improving the functionality of knitted fabrics. Among them, waterproofness is one of the new pursuits of emerging fabrics.

[0003] In the prior art, nylon materials are mostly used to produce waterproof fabrics through warp knitting. The waterproof performance of nylon knitted fabrics is based on its own material properties and coating treatment. Nylon capillaries are relatively thin, and the fine fiber structure can effectively prevent the penetration of water, and it belongs to a relatively closed material structure. Coating treatment can increase the sealing and wear resistance of the fabric. The waterproof effect of nylon knitted fabrics is greatly affected by factors such as fabric density and coating treatment. Although the existing waterproof knitted fabrics are made of high-strength yarns, the surface waterproof layer is relatively fragile, and the fabric and the waterproof layer are easily affected by tearing or abrasion. Increasing the yarn strength or changing the yarn material will also affect the comfort and skin-friendliness of the fabric. Most knitted fabrics are relatively thin and are easily affected by tension during transportation, so they are easily stretched abnormally or even broken during transportation. Therefore, the tension needs to be controlled during the padding process. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the fragility of the waterproof layer and the tension control in the prior art, thereby providing a nylon warp knitted fabric waterproof production process.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A waterproof production process for nylon warp knitted fabrics, wherein the knitted fabric has a double-layer structure and is made of a blend of nylon and spandex, wherein the spandex content is 10-30%. The waterproof production process for the knitted fabrics comprises the following steps: knitted fabric weaving, degreasing and refining, pre-treatment and shaping, dyeing, post-treatment and shaping, and finished product inspection; wherein the specific operations are as follows:

[0007] Knitted fabric weaving: Knitted fabrics are woven with mixed silk materials and woven by warp knitting machines above 36G;

[0008] Degreasing and refining: The knitted fabrics after weaving enter the refining machine for refining. The knitted fabrics are heat treated in the refining tank. 1.0-3.0g / L of high-efficiency degreasing agent, 0.5-2g / L of chelating dispersant, and 4-8g / L of caustic soda are added into the refining tank and the temperature is controlled not to exceed 85℃. Then, the knitted fabrics are fully washed in the washing tank at 40-60℃ with a speed of 20-30m / min. Among them, the main tank temperature of the refining tank is 40℃, 75℃, and 85℃ respectively, and the temperature of the washing tank is 60℃, 50℃, and 40℃ respectively.

[0009] Pre-treatment shaping: After the knitted fabric is refined, it is heated and shaped at the pre-treatment shaping place, with the shaping temperature at 180-200℃ and the speed at 20-30m / min;

[0010] Dyeing: The knitted fabric is dyed with overflow dyeing equipment, with a bath ratio of 1:8, and the leveling agent and softener in the bath are added at room temperature, and the operation is carried out for 5-10 minutes; the temperature is raised from 30℃ to 70℃, and the heating time is 30 minutes, and the temperature is kept at 90℃-95℃ for 20min-40min; the temperature is reduced to 60℃, which takes 20 minutes, and then the liquid is changed and drained three times, and then the fixing agent is added to the dye tank, and the dyed knitted fabric is immersed in the dyeing tank, and the temperature is raised from 30℃ to 80℃ again, and the heating time is 20 minutes, and the temperature is kept for 15min-30min, and then the liquid is changed and drained twice, and the temperature is raised to 60℃ after adding soaping agent, and the temperature is kept for 15-30min, and the temperature is lowered, the water is drained and washed, and the cloth is discharged through the cloth discharging device;

[0011] Post-processing and shaping: Post-processing and shaping equipment is used for post-processing and shaping, and the post-processing and shaping steps include resin impregnation and padding process and finishing and shaping process. The resin impregnation and padding process uses an impregnation device, and the finishing and shaping process uses a shaping device. After two steps and one step of padding in the resin impregnation and padding process, the finishing and shaping process is entered. The resin impregnation and padding process also includes a vacuum adsorption step. The knitted fabric after padding is placed on the shaping device for baking. The baking temperature is 140-160°C and the baking time is 60-80 seconds.

[0012] Finished product inspection: Finished knitted fabrics are arranged and rolled, and samples are cut for inspection.

[0013] By adopting the above technical solution, the knitted fabric with double-layer structure of nylon material has good skin-friendliness, and has good tear resistance through finishing and shaping process to prevent scratches. The use of fluorine-free water repellent in the production process makes the fabric have a strong water-repellent effect, and the tension is controlled during the dyeing and finishing process to reduce the impact of pulling on the knitted fabric. After post-processing and shaping, the finished knitted fabric feels soft, the surface is flat and the waterproof effect is excellent. The overflow dyeing equipment adopts a dyeing method with low bath ratio and low tension, which can make the fabric shrink fully, and can control the flatness and tightness of the dyed fabric.

[0014] Furthermore, the knitted fabric is woven by two comb bars, and the used layer is a coil extension line surface, wherein the structure of the first comb bar GB1 is 0-1 / 2-1 / 3-2 / 1-2 / / , and the structure of the second comb bar GB2 is 0-1 / 2-1 / 3-2- / 1-2 / / . The yarn threading method of the first comb bar GB1 and the second comb bar GB2 is full threading. The first comb bar GB1 uses 40-24F semi-dull fully stretched nylon yarn with a nylon content of 77-81%, and the second comb bar GB2 uses 40D spandex yarn with a spandex content of 19-23%.

[0015] By adopting the above technical solution, nylon uses 40D-24F semi-dull fully stretched yarn, and spandex uses Hyosung's 40D high-elastic and high-temperature resistant product. The spandex uses special polymerization technology and has excellent plasticity and compressibility. The designated warping machine for spandex is Karl Mayer's spandex warping machine, and the spandex stretch ratio is 70%. The spandex is embedded in the middle of the nylon, which protects the spandex and enhances the friction resistance of the fabric. In addition, the specific organizational structure avoids the shortcomings of poor friction resistance and exposed spandex of general spandex fabrics. At the same time, the surface yarn material used in the processing is single, which avoids the influence on the water-repellent effect of the yarn pile after processing, so that the water-repellent effect of the fabric is stable.

[0016] Furthermore, the knitted fabric has a transverse density of 78-82 / inch, a longitudinal density of 130-140 / inch, and a basic structural unit coil of the knitted fabric has a transverse diameter of 317um and a longitudinal diameter of 192um.

[0017] By adopting the above technical solution, the fabric has high transverse and longitudinal density, small gaps between coils, and the curling adopts the 34A mechanism. The curling path is longer than that of 34B and 34E, which can eliminate the stress of the grey cloth more thoroughly and avoid problems such as uneven coloring. When curling, an edge expander can be equipped to prevent curling.

[0018] Furthermore, the resin solution in the post-treatment setting step is configured as follows: 20-50 g / L of polyurethane superhydrophilic finishing agent, 1-5 g / L of nonionic surfactant complex, 5-15 g / L of organic sulfur compound antibacterial agent, and finally citric acid is added to adjust the resin solution to a pH value of 4.5-6.0.

[0019] By adopting the above technical solution, at high temperature, the resin and the fabric fibers undergo a cross-linking reaction and are fully solidified on the surface of the fabric fibers, thereby improving the durability of the knitted fabric.

[0020] Furthermore, a post-processing shaping device is provided at the discharge end of the overflow dyeing equipment, and the overflow dyeing equipment includes a dyeing tank, a dye tank, a spray dyeing mechanism and an atomizer, the dye tank and the atomizer are both arranged on one side of the dyeing tank, the dye tank is connected to the atomizer, the atomizer is connected to the dyeing tank through a liquid feeding pipe, the spray dyeing mechanism is arranged on the dyeing tank, and the dyeing tank is also provided with a plurality of discharge ports on the side close to the post-processing shaping device, and a cloth discharge device is arranged outside the discharge port, and the post-processing shaping device includes a drying device, a rolling device and a shaping device which are arranged in sequence, the drying device includes a drying box and a plurality of drying rollers which are positioned and rotatably installed in the drying box, the rolling device includes a rolling tank, a rolling frame, a first rolling assembly and a second rolling assembly, the first rolling assembly and the second rolling assembly are both arranged along the width direction of the rolling frame and are installed on the rolling frame at both ends, the rolling tank is arranged at the lower part of the rolling frame, and the shaping device is a shaping machine and is arranged at the discharge end of the rolling device.

[0021] By adopting the above technical scheme, after the knitted fabric is woven, degreased, refined and pre-treated, it is sent to the overflow dyeing equipment for dyeing, and then the dyed fabric is sent to the post-treatment setting equipment for drying, impregnation and setting in sequence. The dyed fabric is conveyed and relaxed by the cloth discharging device, and the fabric is shaken to be in a state without tension. Then, the fabric is dipped and rolled by the first impregnation component and the second impregnation component to ensure the contact and penetration of the impregnation bath with the fabric, to ensure the subsequent rolling rate, and thus to ensure the quality of the subsequent fabric finished product; when the fabric is dyed and discharged, the fabric surface heat is reduced and the internal stress of the fabric is reduced by shaking the cloth discharging device, so as to relieve the tension state of the fabric in the dyeing tank, facilitate the tension stretching operation during impregnation and drying, and avoid the fabric being in a tensioned state continuously.

[0022] Furthermore, the cloth discharging device comprises a heat drying component and a cloth handling component, the heat drying component comprises a heat drying cylinder and a heat drying frame, both ends of the heat drying cylinder are positioned and rotatably mounted on the heat drying frame, the heat drying frame is arranged along the length direction of the dyeing cylinder, and a partition plate is also arranged in the length direction of the heat drying frame corresponding to the position of the discharge port, the cloth handling component comprises a cloth discharging roller, a cloth handling roller and a cloth handling driving member, the cloth discharging roller, the cloth handling roller and the cloth handling driving member are all installed on the heat drying frame, the cloth discharging roller and the cloth handling roller are all parallel to the axis of the heat drying cylinder and the cloth discharging roller is installed above one side of the cloth handling roller, the cloth handling driving member controls the rotation of the cloth handling roller, and the cloth handling driving member comprises a connecting roller, Two cloth-handling worms, two cloth-handling worm wheels, two cloth-handling racks and two cloth-handling motors, the connecting rollers are parallel to the axes of the cloth-handling rollers and are arranged in parallel laterally, both ends of the connecting rollers are positioned and rotatably mounted on the hot drying racks and both ends are connected to the two ends of the cloth-handling rollers through the cloth-handling racks, the cloth-handling worm wheels are coaxially arranged with the connecting rollers and are mounted on both ends of the connecting rollers, the axes of the cloth-handling worms are perpendicular to the axes of the cloth-handling worm wheels and are meshed with the cloth-handling worm wheels, the cloth-handling motors are mounted on the hot drying racks and drive the cloth-handling worms to rotate, and the cloth-discharging device also includes a storage box, which is arranged at the discharging end of the cloth-handling assembly and is used to receive and store the cloth discharged from the cloth-handling assembly.

[0023] By adopting the above technical scheme, the hot drying component performs preliminary hot drying on the dyed fabric to reduce the excessive water vapor brought into the impregnation and padding device, thereby reducing the subsequent drying energy consumption. After the fabric is dried in contact with the hot drying roller, it is shaken and transferred by the cloth handling component to avoid overheating during the continuous drying process, which may cause the fabric to be charred due to overheating of the subsequent drying; the cloth handling roller is driven by the cloth handling drive component, and under the control of the cloth handling motor (the cloth handling motor is a forward and reverse motor), the cloth handling worm rotates to drive the cloth handling worm gear meshing with it to rotate, and the cloth handling gear rotates forward and reversely due to the forward and reverse rotation of the cloth handling worm, and the cloth handling frame integrated with the cloth handling worm gear swings up and down, thereby driving the cloth handling roller on the cloth handling frame to swing up and down, and then the cloth passing between the cloth outlet roller and the cloth handling roller is also transported and shaken before being accumulated in the storage box, completing the cloth outlet operation.

[0024] Furthermore, a cloth guiding assembly is provided in front of the drying device, and the cloth guiding assembly is provided near the storage box, and the cloth guiding assembly comprises a plurality of cloth feeding rollers, cloth feeding frames at both ends, a plurality of cloth guiding rollers, cloth guiding tracks at both ends and cloth guiding frames at both ends, and the cloth feeding rollers are positioned and rotatably installed on the cloth feeding frames at both ends and are staggered up and down, the cloth guiding tracks are arranged on the cloth guiding frames and are of a circulating transmission structure, the height of the cloth guiding track close to the drying device is higher than the height of the cloth guiding track away from the drying device, the cloth guiding rollers are all vacuum adsorption rollers, the axes of the cloth guiding rollers are arranged parallel to the axes of the cloth feeding rollers and are installed on the cloth guiding tracks in an array, and the cloth guiding rollers are arranged to slide along the periphery of the cloth guiding tracks.

[0025] By adopting the above technical scheme, the fabrics piled up in the storage box are led out by the cloth guide assembly and sent into the drying device. The cloth guide assembly first flattens and leads out the stacked fabrics through the cloth feed roller and the cloth feed frame, and then the cloth guide roller absorbs the fabrics and drives the fabrics to slide into the drying device. During the conveying process of the cloth guide roller, the fabrics can be prevented from being stretched by tension, thereby reducing the possibility of abnormal stretching or even breakage of the fabrics, providing convenience for lighter and thinner fabrics, and reducing the possibility of left and right deviation during transportation.

[0026] Furthermore, the drying box is provided with an inlet in the middle of one side close to the cloth guiding assembly, and guide rollers are provided on both sides inside and outside the inlet, and the guide rollers are provided along the width direction of the drying box and both ends are positioned and rotatably installed on the drying box, and a bending roller is provided on one side of the bottom of the drying box, and the axis of the bending roller is parallel to the axis of the guide roller and both ends are positioned and rotatably installed in the drying box; the drying rollers are all arranged in the drying box, and the two upper and lower adjacent drying rollers are staggered left and right, and a lead-out port is provided on the top of the drying box close to the impregnation device, and lead-out rollers parallel to the axis of the drying rollers are provided on both sides inside and outside the lead-out port.

[0027] By adopting the above technical solution, the fabric flattened by the cloth guide assembly enters the drying box through the inlet, and the drying rollers inside the drying box are staggered up and down to make the fabric wind in a serpentine shape to increase its drying stroke, thereby reducing the amount of water brought into the impregnation device to dilute the impregnation liquid and affect the subsequent impregnation effect.

[0028] Further, the first immersion component includes a first immersion component and a first scraping component, the first immersion component includes a first immersion drive and a plurality of first immersion rollers, the first immersion drive controls the first immersion roller to rotate synchronously, the first immersion roller is arranged along the width direction of the immersion rolling tank and the two ends are positioned and rotatably installed in the immersion rolling tank, the first scraping component includes a transverse scraping component and a longitudinal scraping component, the transverse scraping component includes a group of staggered scraping rollers, the longitudinal scraping component includes a scraping frame, a scraping plate and a scraper drive; a vacuum adsorption device is also arranged between the transverse scraping component and the longitudinal scraping component; the second immersion component includes a second immersion component and a second liquid squeezing component, the second immersion component includes a second immersion drive and a plurality of second immersion rollers, the second immersion drive controls the second immersion roller to rotate synchronously, the second immersion roller is arranged along the width direction of the immersion rolling tank and the two ends are positioned and rotatably installed in the immersion rolling tank, the second liquid squeezing component includes a plurality of groups of liquid squeezing rollers arranged vertically in parallel, and the axis of the liquid squeezing roller is parallel to the axis of the second immersion roller.

[0029] By adopting the above technical scheme, the first impregnation component implements a single impregnation operation on the fabric, the first scraping component makes the resin of the first impregnation fine and even, which is convenient for the second impregnation operation, the first scraping component effectively reduces the first residue by double-directional scraping to avoid affecting the second impregnation, and a vacuum adsorption device is also provided between the two impregnation operations to absorb water and remove water impurities on the surface of the fabric, so as to facilitate the fabric to be better impregnated for the second time.

[0030] Furthermore, the scraping roller is arranged along the width direction of the dipping and rolling tank and is positioned and rotatably installed on the dipping and rolling frame at both ends. The scraping roller is sleeved with a spiral scraping coil, and the scraping coil is symmetrically arranged about the midline of the length direction of the scraping roller and the rotation directions of the scraping coils at both ends are opposite; the scraping frame is relatively slidably arranged along the width direction of the dipping and rolling frame, the scraping plate is fixed at the bottom of the scraping frame, and sliding grooves are opened on the scraping frame near both ends. The scraper driving member is arranged at both ends of the scraper frame, and the scraper driving member at each end includes a rotating cam and a scraper driving motor, and the scraper driving motor controls the rotation of the rotating cam, and the rotating cam axis is vertically arranged and the rotating cams at both ends are staggered.

[0031] By adopting the above technical scheme, the scraping roller scrapes the upper and lower surfaces along the traveling direction of the fabric to control the roll-off rate of the resin liquid, and the scraping coil can select the corresponding density according to the scraping fineness and the roll-off rate; the scraping frame drives the scraping plate to move perpendicular to the traveling direction of the fabric, thereby realizing longitudinal scraping of the upper surface of the fabric, ensuring that the first impregnation resin is thin enough and penetrates into the interior of the fabric, reducing surface protrusions, and facilitating the secondary impregnation operation.

[0032] In summary, the technical solution of the present invention has the following advantages:

[0033] 1. The waterproof production process of nylon warp knitted fabric provided by the present invention has good skin-friendliness, and has good tear resistance and scratch prevention through the finishing and shaping process. The fluorine-free water repellent is used for finishing in the production process so that the fabric has a strong water-repellent effect. After post-processing and shaping, the finished knitted fabric has a soft hand feel, a smooth surface and excellent waterproof effect.

[0034] 2. The waterproof production process for nylon warp knitted fabrics provided by the present invention reduces the surface heat of the fabric and the stress inside the fabric by shaking the fabric discharge device when the fabric is dyed and discharged, so as to relieve the tension of the fabric in the dyeing tank, facilitate the tension stretching operation during the dipping and drying process, and avoid the fabric being in a continuously tensioned state.

[0035] 3. The waterproof production process for nylon warp knitted fabric provided by the present invention has two dipping and rolling operations to better control the rolling rate of the fabric, and a vacuum adsorption device is also provided between the two dipping and rolling operations to absorb water and remove water impurities on the surface of the fabric, so as to smoothly connect the two dipping and rolling operations, reduce the influence of the previous process and provide a better foundation for the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A tissue diagram of a nylon warp knitted fabric provided in one embodiment of the present invention;

[0038] Figure 2 A reverse leakage confirmation diagram of a nylon warp knitted fabric provided in one embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram of the overall structure of a waterproof production process of a nylon warp knitted fabric provided in one embodiment of the present invention;

[0040] Figure 4 A schematic diagram of a partial structure of a cloth discharging device provided in one embodiment of the present invention;

[0041] Figure 5 A schematic diagram of a partial structure of a post-processing shaping device provided in one embodiment of the present invention;

[0042] Figure 6 A schematic diagram of a partial structure of a padding device provided in one embodiment of the present invention;

[0043] Figure 7 It is a schematic diagram of the partial explosion structure of a padding device provided in one embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1. Overflow dyeing equipment; 11. Dyeing tank; 111. Discharge port; 12. Dye tank; 13. Spray dyeing mechanism; 14. Atomizer; 2. Cloth discharging device; 21. Hot drying assembly; 211. Hot drying cylinder; 212. Hot drying rack; 2121. Partition plate; 22. Cloth discharging assembly; 221. Cloth discharging roller; 222. Cloth discharging roller; 223. Cloth discharging drive member; 2231. Connecting roller; 2232. Cloth discharging worm; 2233. Cloth discharging worm gear; 2234. Cloth discharging rack; 2235. Cloth discharging motor; 23. Storage box; 3. Post-processing shaping equipment; 4. Drying device; 41. Drying box; 411. Inlet; 4111. Guide roller; 412. Outlet; 4121. Outlet roller; 42. Drying roller; 43. Bending roller; 5. Padding device; 51. Padding tank; 52. Padding Rolling mill frame; 6. First dipping and rolling assembly; 61. First immersion assembly; 611. First immersion drive member; 612. First immersion roller; 62. First scraping assembly; 621. Transverse scraping member; 6211. Scraping roller; 6212. Scraping coil; 622. Longitudinal scraping member; 6221. Scraping frame; 62211. Slide groove; 6222. Scraping plate; 6223. Scraper drive member; 62231. Rotating cam; 62232. Scraper drive motor; 7. Second dipping and rolling assembly; 71. Second immersion assembly; 711. Second immersion drive member; 712. Second immersion roller; 72. Second squeezing assembly; 721. Squeezing roller; 8. Shaping device; 9. Cloth guiding assembly; 91. Cloth feeding roller; 92. Cloth feeding frame; 93. Cloth guiding roller; 94. Cloth guiding track; 95. Cloth guiding frame. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] A waterproof production process for nylon warp knitted fabrics, the knitted fabrics are double-layered and made of nylon and spandex blends, the spandex content is 10-30%, and the knitted fabrics waterproof production process includes the following steps: knitted fabric weaving, degreasing and refining, pre-treatment and shaping, dyeing, post-treatment and shaping, and finished product inspection. The knitted fabrics with double-layered nylon materials have good skin-friendliness, and have good tear resistance through the finishing and shaping process to prevent scratches. During the production process, fluorine-free water repellent is used for finishing, so that the fabrics have a strong water-repellent effect, and the tension is controlled during the dyeing and finishing process to reduce the effect of pulling on the knitted fabrics. After post-treatment and shaping, the finished knitted fabrics have a soft feel, a smooth surface, and excellent waterproof effect. Overflow dyeing equipment 1 adopts a dyeing method with a low bath ratio and low tension, which can make the fabrics fully shrink, and can control the flatness and tightness of the dyed fabrics.

[0048] The specific operations are as follows:

[0049] Knitted fabric weaving: Knitted fabric is woven with mixed silk material and woven by warp knitting machines above 36G; knitted fabric is woven with two comb bars, and the use layer is the coil extension line surface, of which the first comb bar GB1 has a structure of 0-1 / 2-1 / 3-2 / 1-2 / / , and the second comb bar GB2 has a structure of 0-1 / 2-1 / 3-2- / 1-2 / / . The threading method of the first comb bar GB1 and the second comb bar GB2 is full threading. The first comb bar GB1 uses 40-24F semi-dull fully stretched nylon yarn with a nylon content of 77-81%, and the second comb bar GB2 uses Hyosung's 40D spandex yarn with a spandex content of 19-23%. The spandex uses special polymerization technology and has excellent plasticity and compressibility. The spandex designated warping machine is the Karl Mayer spandex warping machine, and the spandex designated warping machine is the Karl Mayer spandex warping machine. The spandex stretch ratio is 70%. The transverse density of knitted fabric is 78-82 / inch, the longitudinal density of knitted fabric is 130-140 / inch, and the transverse diameter of the basic structural unit coil of knitted fabric is 317um, and the longitudinal diameter is 192um. The fabric has high transverse and longitudinal density, small gaps between coils, and the curling adopts 34A mechanism. The curling path is longer than 34B and 34E, which can eliminate the stress of the grey cloth more thoroughly and avoid problems such as uneven coloring. When curling, it can be equipped with an expander to prevent curling. Figure 1 As shown, the organization diagram of the first comb bar GB1 and the second comb bar GB2.

[0050] Degreasing and refining: The knitted fabrics after weaving are put into the refining machine for refining. The knitted fabrics are heat treated in the refining tank. 1.0-3.0g / L of high-efficiency degreasing agent, 0.5-2g / L of chelating dispersant and 4-8g / L of caustic soda are added into the refining tank and the treatment temperature is controlled not to exceed 85℃. Then, the knitted fabrics are fully washed in the washing tank at 40-60℃ with a speed of 20-30m / min. Among them, the main tank temperature of the refining tank is 40℃, 75℃ and 85℃ respectively, and the temperature of the washing tank is 60℃, 50℃ and 40℃ respectively.

[0051] Pre-treatment shaping: After the knitted fabric is refined, it is heated and shaped at the pre-treatment shaping area. The shaping temperature is 180-200℃ and the speed is 20-30m / min.

[0052] Dyeing: The knitted fabric is dyed by overflow dyeing equipment 1, with a bath ratio of 1:8, and a leveling agent and a softener in the bath are added at room temperature, and the operation is performed for 5-10 minutes; the temperature is raised from 30°C to 70°C, and the heating time is 30 minutes, and the heat preservation is continued at a temperature of 90°C-95°C for 20 minutes-40 minutes; the temperature is reduced to 60°C, which takes 20 minutes, and then the liquid is replaced and drained three times, and then a fixing agent is added to the dye cylinder 12, and the dyed knitted fabric is immersed in the dye cylinder 11, and the temperature is raised again from 30°C to 80°C, and the heating time is 20 minutes, and the heat preservation is 15 minutes-30 minutes, and then the liquid is replaced and drained twice, and the temperature is raised to 60°C after adding soaping agent, and the heat preservation is 15-30 minutes, and the temperature is reduced and the water is washed, and the cloth is discharged through the cloth discharging device 2.

[0053] Post-processing and shaping: Post-processing and shaping equipment 3 is used for post-processing and shaping. The post-processing and shaping steps include resin impregnation and padding process and finishing and shaping process. The resin impregnation and padding process uses impregnation device 5, and the finishing and shaping process uses shaping device 8. After two steps and one step in the resin impregnation and padding process, the finishing and shaping process is entered. The resin impregnation and padding process also includes a vacuum adsorption step. The knitted fabric after rolling is placed on the shaping device 8 for baking. The baking temperature is 140-160℃ and the baking time is 60-80sec. The configuration of the resin liquid is as follows: 20-50g / L of polyurethane superhydrophilic finishing agent, 1-5g / L of nonionic surfactant complex, 5-15g / L of organic sulfur compound antibacterial agent, and finally citric acid is added to adjust the resin liquid to a pH value of 4.5-6.0. At high temperature, the resin and the fabric fiber undergo a cross-linking reaction and are fully solidified on the surface of the fabric fiber, thereby improving the durability of the knitted fabric.

[0054] Finished product inspection: Finished knitted fabrics are arranged and rolled, and samples are cut for inspection. Four samples are cut from different locations of the finished knitted fabrics, numbered as sample 1, sample 2, sample 3 and sample 4, and the sizes of samples 1-4 are consistent. The front of each sample is tested. The samples are pre-treated before testing and placed in an atmosphere with an ambient temperature of 23±2℃ and a relative humidity of 50±5% for 7 days or until the samples obtain a constant quality.

[0055] Table 1: Slip Angle Test Evaluation

[0056]

[0057] In the slip angle test designed for waterproof determination, an angle below 15 degrees is generally considered to be highly waterproof, so the front sides of samples 1-4 have a strong waterproof effect.

[0058] like Figure 2As shown, in view of the waterproof properties of the knitted fabric, an additional confirmation and comparison of whether the back is leaking is added. A is a knitted fabric fabric that has not been treated with waterproofing, and the back is leaking seriously. The back of the knitted fabric B has no obvious water stains or water marks and the liquid has not penetrated after post-processing and shaping, and the back shows no water leakage. Therefore, the warp knitted fabric of this application has superior waterproof performance.

[0059] like Figure 3 , Figure 4 and Figure 6 As shown, a post-processing and shaping device 3 is provided at the discharge end of the overflow dyeing device 1. The overflow dyeing device 1 includes a dyeing tank 11, a dye tank 12, a spray-dyeing mechanism 13 and an atomizer 14. The dye tank 12 and the atomizer 14 are both arranged on one side of the dyeing tank 11. The dye tank 12 is connected to the atomizer 14. The atomizer 14 is connected to the dyeing tank 11 through a liquid feeding pipe. The spray-dyeing mechanism 13 is arranged on the dyeing tank 11. A plurality of discharge ports 111 are also provided on the side of the dyeing tank 11 close to the post-processing and shaping device 3, and a cloth discharging device 2 is arranged outside the discharge port 111. The post-processing shaping equipment 3 includes a drying device 4, a rolling device 5 and a shaping device 8 which are arranged in sequence. The rolling device 5 includes a rolling tank 51, a rolling frame 52, a first rolling assembly 6 and a second rolling assembly 7. The first rolling assembly 6 and the second rolling assembly 7 are both arranged along the width direction of the rolling frame 52 and are installed on the rolling frame 52 at both ends. The rolling tank 51 is arranged at the lower part of the rolling frame 52. The shaping device 8 is a shaping machine and is arranged at the discharge end of the rolling device 5. After weaving, degreasing, refining and pre-treatment of the knitted fabric, it is sent to the overflow dyeing equipment 1 for dyeing, and then the dyed fabric is sent to the post-treatment shaping equipment 3 for drying, impregnation and shaping in sequence. The dyed fabric is conveyed and relaxed by the cloth discharging device 2, and the fabric is shaken to be in a state without tension. Then, the fabric is dipped and rolled by the first impregnation component 6 and the second impregnation component, ensuring the contact and penetration of the impregnation bath with the fabric, ensuring the subsequent rolling rate, and thus ensuring the quality of the subsequent fabric finished product; when the fabric is dyed and discharged, the cloth discharging device 2 is shaken to reduce the surface heat of the fabric and reduce the internal stress of the fabric, so as to relieve the tension of the fabric in the dyeing tank 11, facilitate the tension stretching operation during impregnation and drying, and avoid the fabric being in a tensioned state continuously.

[0060] like Figure 3 and Figure 4As shown, the cloth discharging device 2 includes a heat drying component 21 and a cloth handling component 22. The heat drying component 21 includes a heat drying cylinder 211 and a heat drying rack 212. The heat drying cylinder 211 is rotatably mounted on the heat drying rack 212 at both ends. The heat drying rack 212 is arranged along the length direction of the dyeing cylinder 11 and has legs extending from both ends to be fixed to the outer wall of the dyeing cylinder 11. A partition plate 2121 is also arranged in the middle position of the discharge port 111 in the length direction of the heat drying rack 212. The heat drying component 21 performs preliminary heat drying on the dyed fabric to reduce excessive water vapor from being brought into the padding device 5, thereby reducing the subsequent drying energy consumption.

[0061] The cloth handling assembly 22 includes a cloth discharging roller 221, a cloth handling roller 222 and a cloth handling driving member 223. The cloth discharging roller 221, the cloth handling roller 222 and the cloth handling driving member 223 are all installed on the hot drying rack 212. The cloth discharging roller 221 and the cloth handling roller 222 are parallel to the axis of the hot drying cylinder 211, and the cloth discharging roller 221 is installed on the upper left side of the cloth handling roller 222. The cloth handling driving member 223 controls the rotation of the cloth handling roller 222. The cloth handling driving member 223 includes a connecting roller 2231, two cloth handling worms 2232, two cloth handling worm gears 2233, two cloth handling racks 2234 and two cloth handling motors 2235. The connecting roller 2231 is parallel to the axis of the cloth handling roller 222. And they are arranged in parallel horizontally, both ends of the connecting roller 2231 are positioned and rotatably installed on the hot drying rack 212 and both ends are connected to the two ends of the cloth handling roller 222 through the cloth handling rack 2234, the cloth handling worm gear 2233 is coaxially arranged with the connecting roller 2231 and installed at both ends of the connecting roller 2231, the axis of the cloth handling worm 2232 is perpendicular to the axis of the cloth handling worm gear 2233 and is meshed with the cloth handling worm gear 2233, the cloth handling motor 2235 is installed on the hot drying rack 212 and drives the cloth handling worm 2232 to rotate, and the cloth discharging device 2 also includes a storage box 23, the storage box 23 is arranged at the discharging end of the cloth handling component 22 and is used to receive and store the cloth discharged from the cloth handling component 22. The cloth handling roller 222 is driven by the cloth handling driving member 223. Under the control of the cloth handling motor 2235, which is a forward and reverse motor, the cloth handling worm 2232 rotates to drive the cloth handling worm gear 2233 meshing with it to rotate. Since the cloth handling worm 2232 rotates forward and reversely, the cloth handling gear rotates forward and reversely, and the cloth handling frame 2234 integrated with the cloth handling worm gear 2233 swings up and down, thereby driving the cloth handling roller 222 on the cloth handling frame 2234 to swing up and down, and then the cloth passing between the cloth discharge roller 221 and the cloth handling roller 222 is also transported and shaken before being accumulated in the storage box 23, completing the cloth discharge operation. The fabrics discharged from different discharge ports 111 are accumulated in the corresponding storage box 23 below, and then temporarily stored or directly transferred to subsequent equipment for processing according to needs.

[0062] like Figure 3 , Figure 4 and Figure 5As shown, a cloth guide assembly 9 is also arranged in front of the drying device 4, and the cloth guide assembly 9 is arranged near the storage box 23. The cloth guide assembly 9 includes a plurality of cloth feed rollers 91, cloth feed racks 92 at the front and rear ends, a plurality of cloth guide rollers 93, cloth guide tracks 94 at the front and rear ends, and cloth guide racks 95 at the front and rear ends. The cloth feed rollers 91 are positioned and rotatably mounted on the cloth feed racks 92 and are arranged in an upper and lower staggered manner. The fabrics accumulated in the storage box 23 are led out by the cloth guide assembly 9 and sent into the drying device 4. The cloth guide assembly 9 first flattens and leads out the stacked fabrics through the cloth feed rollers 91 and the cloth feed racks 92.

[0063] The cloth guide track 94 is arranged on the cloth guide frame 95 and is a cyclic transmission structure. The cloth guide track 94 is similar to a conveyor belt structure so that the cloth guide rollers 93 on the cloth guide track 94 can reciprocate along the circumference of the track. The height of the cloth guide track 94 close to the drying device 4 is higher than the height of the cloth guide track 94 away from the drying device 4. The cloth guide rollers 93 are all vacuum adsorption rollers. The axes of the cloth guide rollers 93 are arranged parallel to the axes of the cloth feed rollers 91 and are installed in an array on the cloth guide track 94. The cloth guide rollers 93 are arranged to slide along the outer periphery of the cloth guide track 94. The cloth guide rollers 93 adsorb the fabric and drive the fabric to slide into the drying device 4. During the conveying process of the cloth guide rollers 93, the fabric can be prevented from being stretched by tension, thereby reducing the possibility of abnormal stretching or even breakage of the fabric and providing convenience for thinner fabrics, reducing the possibility of left and right deviation during the conveying process.

[0064] like Figure 5 As shown, the drying box 41 is an electric heating device that heats the fabric passing through the inside. The drying box 41 is also provided with an inlet 411 in the middle of one side close to the fabric guide assembly 9. Guide rollers 4111 are provided on both sides of the inlet 411. The guide rollers 4111 are arranged along the width direction of the drying box 41 and are positioned and rotatably installed on the drying box 41 at both ends. A bending roller 43 is also provided on the left side of the bottom of the drying box 41. The axis of the bending roller 43 is parallel to the axis of the guide roller 4111 and is positioned and rotatably installed in the drying box 41 at both ends. The drying rollers 42 are all arranged in the drying box 41. The two drying rollers 42 adjacent to each other are arranged alternately left and right. The fabric is wound around the drying rollers 42 in a serpentine shape. A lead-out port 412 is also provided on the right side of the top of the drying box 41. Lead-out rollers 4121 parallel to the axis of the drying rollers 42 are provided on both sides of the lead-out port 412. The fabric flattened by the fabric guide assembly 9 enters the drying box 41 through the inlet 411. The drying rollers 42 inside the drying box 41 are staggered up and down to increase the drying stroke of the fabric and reduce the fabric from carrying water into the impregnation device 5 to dilute the impregnation liquid and affect the subsequent impregnation effect.

[0065] like Figure 5 , Figure 6 and Figure 7As shown, the first immersion assembly 6 includes a first immersion assembly 61 and a first scraping assembly 62. The first immersion assembly 61 includes a first immersion driving member 611 and a plurality of first immersion rollers 612. The first immersion driving member 611 controls the first immersion rollers 612 to rotate synchronously. The first immersion rollers 612 are arranged along the width direction of the immersion tank 51 and are positioned and rotatably installed at both ends in the immersion tank 51. The first scraping assembly 62 includes a transverse scraping member 621 and a longitudinal scraping member 622. A vacuum adsorption device is also arranged between the transverse scraping member 621 and the longitudinal scraping member 622.

[0066] The second impregnation assembly 7 includes a second impregnation assembly 71 and a second liquid pressing assembly 72. The second impregnation assembly 71 includes a second impregnation driving member 711 and a plurality of second impregnation rollers 712. The second impregnation driving member 711 controls the second impregnation rollers 712 to rotate synchronously. The second impregnation rollers 712 are arranged along the width direction of the impregnation tank 51 and are positioned and rotated at both ends in the impregnation tank 51. The second liquid pressing assembly 72 includes a plurality of groups of liquid pressing rollers 721 arranged vertically in parallel. The axis of the liquid pressing roller 721 is parallel to the axis of the second impregnation roller 712. The first scraping assembly 62 and the second liquid pressing assembly 72 are separately provided with driving members for driving the movement outside the impregnation frame 52. A spraying device can be provided in front of the second liquid pressing assembly 72 to spray the surface of the fabric and then press the fabric.

[0067] like Figure 5 , Figure 6 and Figure 7 As shown, the transverse scraping member 621 includes a set of scraping rollers 6211 arranged in an upper and lower staggered manner. The scraping rollers 6211 are arranged along the width direction of the padding tank 51 and are rotatably mounted on the padding frame 52 at both ends. A spiral scraping coil 6212 is sleeved on the scraping roller 6211. The scraping coil 6212 is symmetrically arranged about the midline of the length direction of the scraping roller 6211 and the rotation directions of the scraping coils 6212 at both ends are opposite. The scraping roller 6211 scrapes the upper and lower surfaces along the traveling direction of the fabric to control the rolling rate of the resin liquid. The scraping coil 6212 can select the corresponding density according to the scraping fineness and the rolling rate.

[0068] The longitudinal scraping member 622 includes a scraping frame 6221, two scraping plates 6222 and two scraper driving members 6223. The scraping frame 6221 is relatively slidably arranged along the width direction of the padding frame 52. The two scraping plates 6222 are fixed at the bottom of the scraping frame 6221. The scraping plates 6222 are arranged along the length direction of the scraping frame 6221 and are slightly larger than half the length of the scraping frame 6221. The scraping frame 6221 is provided with waist-shaped sliding grooves 62211 near the upper part of both ends. The padding frame 52 is extended with sliding rods and sliding support plates corresponding to the sliding grooves 62211. The sliding rods and sliding support plates are both installed in the sliding grooves 62211.

[0069] The scraper driving member 6223 is arranged at both ends of the scraper frame 6221. The scraper driving member 6223 at each end includes a rotating cam 62231 and a scraper driving motor 62232. The scraper driving motor 62232 controls the rotation of the rotating cam 62231. The axis of the rotating cam 62231 is vertically arranged and the rotating cams 62231 at both ends are staggered.

[0070] When the large diameter of the rotating cam 62231 at the front end abuts against the outer wall of the corresponding scraping frame 6221, the small diameter of the rotating cam 62231 at the other end abuts against the outer wall of the corresponding scraping frame 6221, and the two sliding grooves 62211 are also clamped at two extreme positions. The scraping frame 6221 drives the scraping plate 6222 to move perpendicularly to the direction of the fabric travel, thereby achieving longitudinal scraping of the upper surface of the fabric, ensuring that the first impregnation resin is thin enough and penetrates into the fabric, reducing surface protrusions, and facilitating the secondary impregnation operation.

[0071] The working principle and use method of the nylon warp knitted fabric waterproof production process: after the knitted fabric is woven, degreased, refined and pre-treated, it is sent to the overflow dyeing device 1 for dyeing, and then the dyed fabric is sent to the post-treatment shaping device 3 for drying, impregnation and shaping in sequence. The dyed fabric is conveyed and relaxed by the fabric discharging device 2, and the fabric is shaken to be in a state without tension. After that, the fabric is dipped and rolled by the first impregnation component 6 and the second impregnation component to ensure the contact and penetration of the impregnation bath with the fabric, ensure the subsequent rolling rate, and thus ensure the quality of the subsequent fabric finished product.

[0072] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A waterproof production process for nylon warp knitted fabric, characterized in that: The knitted fabric is a double-layer structure and is made of a blend of nylon and spandex, with a spandex content of 10-30%. The waterproof production process of the knitted fabric includes the following steps: knitted fabric weaving, degreasing and refining, pre-treatment and shaping, dyeing, post-treatment and shaping, and finished product inspection; the specific operations are as follows: Knitted fabric weaving: Knitted fabrics are woven with mixed silk materials and woven by warp knitting machines above 36G; Degreasing and refining: The knitted fabrics after weaving enter the refining machine for refining. The knitted fabrics are heat treated in the refining tank. 1.0-3.0g / L of high-efficiency degreasing agent, 0.5-2g / L of chelating dispersant, and 4-8g / L of caustic soda are added into the refining tank and the temperature is controlled not to exceed 85℃. Then, the knitted fabrics are fully washed in the washing tank at 40-60℃ with a speed of 20-30m / min. Among them, the main tank temperature of the refining tank is 40℃, 75℃, and 85℃ respectively, and the temperature of the washing tank is 60℃, 50℃, and 40℃ respectively. Pre-treatment shaping: After the knitted fabric is refined, it is heated and shaped at the pre-treatment shaping place, with a shaping temperature of 180-200℃ and a speed of 20-30m / min; Dyeing: The knitted fabric is dyed by using overflow dyeing equipment (1), and the bath ratio is 1:

8. A leveling agent and a softening agent are added under normal temperature and the process is operated for 5-10 minutes. The temperature is raised from 30°C to 70°C, and the heating time is 30 minutes. The temperature is kept at 90°C to 95°C for 20 minutes to 40 minutes. The temperature is lowered to 60°C, and the temperature is lowered to 60°C for 20 minutes. The liquid is then changed and the water is drained three times. A fixing agent is then added to the dye vat (12). The dyed knitted fabric is immersed in the dye vat (11). The temperature is raised again from 30°C to 80°C, and the temperature is raised to 80°C for 20 minutes. The temperature is kept for 15 minutes to 30 minutes. The liquid is then changed and the water is drained twice. The temperature is raised to 60°C after the soaping agent is added. The temperature is kept for 15 minutes to 30 minutes. The temperature is lowered and the water is drained. The fabric is discharged through the fabric discharging device (2). Post-processing and shaping: Post-processing and shaping is performed using a post-processing and shaping device (3), and the post-processing and shaping steps include a resin impregnation and padding process and a finishing and shaping process. The resin impregnation and padding process uses an impregnation device (5), and the finishing and shaping process uses a shaping device (8). After two steps of impregnation and one step of padding in the resin impregnation and padding process, the finishing and shaping process is entered. The resin impregnation and padding process also includes a vacuum adsorption step. The knitted fabric after padding is then placed on the shaping device (8) for baking. The baking temperature is 140-160° C. and the baking time is 60-80 seconds. Finished product inspection: Finished knitted fabrics are arranged and rolled, and samples are cut for inspection.

2. A waterproof production process for nylon warp knitted fabric according to claim 1, characterized in that: The knitted fabric is woven by two comb bars, and the used layer is the coil extension line surface. The structure of the first comb bar GB1 is 0-1 / 2-1 / 3-2 / 1-2 / / , and the structure of the second comb bar GB2 is 0-1 / 2-1 / 3-2- / 1-2 / / . The yarn threading method of the first comb bar GB1 and the second comb bar GB2 is full threading. The first comb bar GB1 uses 40-24F semi-dull fully stretched nylon yarn with a nylon content of 77-81%. The second comb bar GB2 uses Hyosung 40D high-elastic and high-temperature resistant spandex yarn with a spandex content of 19-23%.

3. A waterproof production process for nylon warp knitted fabric according to claim 2, characterized in that: The transverse density of the knitted fabric is 78-82 / inch, the longitudinal density of the knitted fabric is 130-140 / inch, and the transverse diameter of the basic structural unit coil of the knitted fabric is 317um, and the longitudinal diameter is 192um.

4. A waterproof production process for nylon warp knitted fabric according to claim 1, characterized in that: The resin solution in the post-treatment setting step is configured as follows: 20-50 g / L of polyurethane superhydrophilic finishing agent, 1-5 g / L of nonionic surfactant complex, 5-15 g / L of organic sulfur compound antibacterial agent, and finally citric acid is added to adjust the resin solution to a pH value of 4.5-6.

0.

5. A waterproof production process for nylon warp knitted fabric according to claim 1, characterized in that: The discharge end of the overflow dyeing device (1) is provided with a post-processing setting device (3). The overflow dyeing device (1) comprises a dyeing tank (11), a dye tank (12), a spray dyeing mechanism (13) and an atomizer (14). The dye tank (12) and the atomizer (14) are both arranged on one side of the dyeing tank (11). The dye tank (12) is connected to the atomizer (14). The atomizer (14) is connected to the dyeing tank (11) through a liquid feeding pipe. The spray dyeing mechanism (13) is arranged on the dyeing tank (11). A plurality of discharge ports (111) are also provided on the side of the dyeing tank (11) close to the post-processing setting device (3). A cloth discharging device (2) is arranged outside the discharge port (111). The shaping device (3) comprises a drying device (4), a rolling device (5) and a shaping device (8) which are arranged in sequence. The drying device (4) comprises a drying box (41) and a plurality of drying rollers (42) which are positioned and rotatably mounted in the drying box (41). The rolling device (5) comprises a rolling tank (51), a rolling frame (52), a first rolling assembly (6) and a second rolling assembly (7). The first rolling assembly (6) and the second rolling assembly (7) are both arranged along the width direction of the rolling frame (52) and are mounted on the rolling frame (52) at both ends. The rolling tank (51) is arranged at the lower part of the rolling frame (52). The shaping device (8) is a shaping machine and is arranged at the discharge end of the rolling device (5).

6. A waterproof production process for nylon warp knitted fabric according to claim 5, characterized in that: The cloth discharging device (2) comprises a heat drying component (21) and a cloth handling component (22), wherein the heat drying component (21) comprises a heat drying cylinder (211) and a heat drying frame (212), wherein both ends of the heat drying cylinder (211) are rotatably mounted on the heat drying frame (212), wherein the heat drying frame (212) is arranged along the length direction of the dyeing vat (11), and wherein a partition plate (2121) is also arranged in the length direction of the heat drying frame (212) at a position corresponding to the discharge port (111), and wherein the cloth handling component (22) comprises a cloth discharging roller ( The cloth discharging roller (221), the cloth discharging roller (222) and the cloth discharging driving member (223) are all installed on the hot drying rack (212). The cloth discharging roller (221) and the cloth discharging roller (222) are all parallel to the axis of the hot drying cylinder (211). The cloth discharging roller (221) is installed above one side of the cloth discharging roller (222). The cloth discharging driving member (223) controls the rotation of the cloth discharging roller (222). The cloth discharging driving member (223) includes a connecting roller (2 231), two cloth-handling worms (2232), two cloth-handling worm wheels (2233), two cloth-handling racks (2234) and two cloth-handling motors (2235); the connecting roller (2231) is parallel to the axis of the cloth-handling roller (222) and is arranged in parallel in the transverse direction; both ends of the connecting roller (2231) are rotatably mounted on the hot drying rack (212) and are connected to both ends of the cloth-handling roller (222) via the cloth-handling rack (2234); the cloth-handling worm wheels (2233) and the connecting roller (2231) are coaxially arranged. The cloth handling worm (2232) is arranged and mounted at both ends of the connecting roller (2231); the axis of the cloth handling worm (2232) is perpendicular to the axis of the cloth handling worm wheel (2233) and is meshed with the cloth handling worm wheel (2233); the cloth handling motor (2235) is mounted on the hot drying rack (212) and drives the cloth handling worm (2232) to rotate; the cloth discharging device (2) also includes a storage box (23); the storage box (23) is arranged at the discharging end of the cloth handling component (22) and is used to receive and store the cloth discharged from the cloth handling component (22).

7. A waterproof production process for nylon warp knitted fabric according to claim 6, characterized in that: A cloth guiding assembly (9) is also arranged in front of the drying device (4). The cloth guiding assembly (9) is arranged near the storage box (23). The cloth guiding assembly (9) comprises a plurality of cloth feeding rollers (91), cloth feeding frames (92) at both ends, a plurality of cloth guiding rollers (93), cloth guiding tracks (94) at both ends and cloth guiding frames (95) at both ends. The cloth feeding rollers (91) are rotatably mounted on the cloth feeding frames (92) at both ends and are arranged in an up-and-down staggered manner. The cloth guiding tracks (94) are arranged on the cloth guiding frames (95) and are of a circulating transmission structure. The height of the cloth guiding tracks (94) on the side close to the drying device (4) is higher than the height of the cloth guiding tracks (94) on the side away from the drying device (4). The cloth guiding rollers (93) are all vacuum adsorption rollers. The axes of the cloth guiding rollers (93) are arranged parallel to the axes of the cloth feeding rollers (91) and are arranged in an array on the cloth guiding tracks (94). The cloth guiding rollers (93) are arranged to slide along the periphery of the cloth guiding tracks (94).

8. A waterproof production process for nylon warp knitted fabric according to claim 7, characterized in that: The drying box (41) is provided with an inlet (411) in the middle of one side close to the cloth guiding assembly (9), and guide rollers (4111) are arranged on both sides inside and outside the inlet (411), and the guide rollers (4111) are arranged along the width direction of the drying box (41) and are rotatably mounted on the drying box (41) at both ends. A bending roller (43) is also arranged on one side of the bottom of the drying box (41), and the axis of the bending roller (43) is parallel to the axis of the guide roller (4111), and the two ends are rotatably mounted in the drying box (41); the drying rollers (42) are arranged in the drying box (41), and two drying rollers (42) adjacent to each other are arranged alternately on the left and right. A lead-out port (412) is also provided on the top of the drying box (41) close to the padding device (5), and lead-out rollers (4121) parallel to the axis of the drying roller (42) are arranged on both sides inside and outside the lead-out port (412).

9. A waterproof production process for nylon warp knitted fabric according to claim 5, characterized in that: The first immersion assembly (6) comprises a first immersion assembly (61) and a first scraping assembly (62). The first immersion assembly (61) comprises a first immersion driving member (611) and a plurality of first immersion rollers (612). The first immersion driving member (611) controls the first immersion rollers (612) to rotate synchronously. The first immersion rollers (612) are arranged along the width direction of the immersion tank (51) and are positioned and rotatably installed at both ends in the immersion tank (51). The first scraping assembly (62) comprises a transverse scraping member (621) and a longitudinal scraping member (622). The transverse scraping member (621) comprises a group of staggered scraping rollers (6211). The longitudinal scraping member (622) comprises a scraping frame (6221), a scraping plate (6222) and a scraper driving member. a vacuum adsorption device is arranged between the transverse scraping member (621) and the longitudinal scraping member (622); the second immersion and rolling assembly (7) comprises a second immersion assembly (71) and a second liquid pressing assembly (72); the second immersion and rolling assembly (71) comprises a second immersion driving member (711) and a plurality of second immersion rollers (712); the second immersion driving member (711) controls the second immersion rollers (712) to rotate synchronously; the second immersion rollers (712) are arranged along the width direction of the immersion and rolling tank (51) and are positioned and rotatably installed at both ends in the immersion and rolling tank (51); the second liquid pressing assembly (72) comprises a plurality of groups of liquid pressing rollers (721) arranged vertically in parallel; the axes of the liquid pressing rollers (721) are parallel to the axes of the second immersion rollers (712).

10. A waterproof production process for nylon warp knitted fabric according to claim 9, characterized in that: The scraping roller (6211) is arranged along the width direction of the dipping and rolling tank (51) and is rotatably mounted at both ends on the dipping and rolling machine frame (52). A spiral scraping coil (6212) is sleeved on the scraping roller (6211). The scraping coil (6212) is symmetrically arranged about the midline of the length direction of the scraping roller (6211) and the rotation directions of the scraping coils (6212) at both ends are opposite. The scraping frame (6221) is relatively slidably arranged along the width direction of the dipping and rolling machine frame (52), and the scraping plate (6222) is fixed on the scraping frame (6221). The bottom of the coating frame (6221) is provided with sliding grooves (62211) near both ends of the coating frame (6221), and the scraper driving member (6223) is arranged at both ends of the coating frame (6221). The scraper driving member (6223) at each end includes a rotating cam (62231) and a scraper driving motor (62232). The scraper driving motor (62232) controls the rotation of the rotating cam (62231). The axis of the rotating cam (62231) is vertically arranged, and the rotating cams (62231) at both ends are staggered.

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