A composite bubble-crease anti-feather leakage fabric and its preparation method

Abstract

The invention discloses a preparation method of a composite bubble-crease anti-feather leakage fabric, which comprises the following steps: compounding a base fabric coated with foaming printing paste on the front and dried with a nanofiber membrane; the nanofiber membrane is compounded on the back of the base fabric; the compounding includes pre-lamination and post-bonding, the pre-lamination is to adsorb the nanofiber membrane to the back of the base fabric; the post-bonding is to attach the nanofiber membrane to a pressure roller and the front of the base fabric to a heating roller, and under the conditions of heat and pressure, bond the nanofiber membrane to the back of the base fabric. The preparation method of the composite bubble-crease anti-feather leakage fabric of the invention utilizes the traditional three-dimensional foaming process to form a wrinkled effect on the surface of the base fabric, and cooperates with the microstructure of the nanofiber membrane to reduce the drilling of down fibers from the fabric surface in terms of scale. While achieving the anti-feather leakage effect, the multi-porous channels improve the air permeability of the fabric.

Description

Technical Field

[0001] The present invention relates to the technical field of composite air bubble crepe anti-feather leakage fabrics, and particularly relates to a preparation method of a composite air bubble crepe anti-feather leakage fabric and a composite air bubble crepe anti-feather leakage fabric prepared by using the preparation method. Background Art

[0002] Down fiber is one of the warmest and lightest materials in the current textile market. Its structure is a three-dimensional sphere composed of a central fluff and radially arranged downy filaments around it. The hollow structure inside a single downy filament and the static air contained between multiple downy filaments are the reasons for the excellent warmth retention of down. However, down fiber is small in fineness (5 - 14 μm) and light in weight, and it is likely to fly out from the seams of the fabric or the gaps between the warp and weft intersections due to friction or patting during the use of the product. Therefore, it is necessary to perform anti-feather leakage treatment on down products.

[0003] Generally speaking, down fiber is mostly filled in nylon fabrics with good wear resistance to enhance the service life of down products. In order to reduce the phenomenon of feather leakage, people mostly reduce the gaps in the outer fabric by increasing the warp and weft density of the fabric or directly applying a coating. However, this method often sacrifices the breathability and skin-friendly property of the textile, and also increases the weight and thickness of the fabric.

[0004] At present, the booming sales of lightweight down products have inspired research on the comfort of down-proof fabrics. For example, Patent CN201810246742.0 proposes a method for preparing a fabric for lightweight down by filling fiber pores through the stretching and bending of weft threads and calendering the nap. Although this method does not use the traditional coating process and relies on a single-layer fabric, the stretched weft threads are prone to loosening, and the calendered nap will gradually protrude from the structure after long-term use, making it difficult to ensure the long-term use of the product. In Patent CN201710209520.7, polylactic acid fibers and tencel are interwoven in a satin pattern, with tencel on the outside of the fabric and polylactic acid on the inside, and then hot-pressed into a film to prevent down from drilling. This method is indeed beneficial for the preparation of fabrics for lightweight down, but it needs to be improved in terms of breathability and flexibility. Additionally, Patent CN202010492283.1 uses a variety of finishing agents (including down-proof agents, etc.) to wash and dry the fabric multiple times. However, during the finishing process, the microscopic structure of the fabric gaps is easily filled by the active substances in the auxiliaries, and this patent does not further explain the reason why the breathability is not affected. There are also patents that have designed the fine structure of the fabric. For example, Patent CN202210747116.6 designs a down jacket with a double-layer down-locking structure. The application of multiple layers and microstructures enables the fabric to achieve the performance of down-locking and breathability without the treatment of coatings and auxiliaries. However, this method is not applicable to the design of lightweight down products. Patent CN202210619637.3 even uses an ultra-thin and ultra-permeable microporous membrane to coat the base fabric with high precision. This method uses the size of the pore diameter of the microporous membrane to limit the drilling of down. However, this method involves the coating of the membrane on the base fabric. If the membrane surface and the base fabric surface are tightly compounded, although the down-proof effect is good, the strength of the fabric is poor. If the microporous membrane is tightly coated with the yarns in the base fabric, the down-proof effect exerted by the small pore diameter is poor. Patent CN113997660A proposes a method for preparing a functional nanofiber composite fabric, which also uses a nanofiber structure with a relatively high specific surface area to finish a functional fabric with certain comfort performance. In order to integrate multiple functions at one time, the nanofibers obtained by electrospinning are cut short and mixed and then sprayed on the fabric. The difference between this method and the conventional coating treatment may be that the former uses shorter nanofibers as the carrier and the latter uses particulate matter. However, it ignores the stability of the functional substances loaded by the entangled fiber structure. Summary of the Invention

[0005] In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a preparation method for a composite bubble-crease down-proof fabric.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A preparation method for a composite bubble-crease down-proof fabric, comprising the following steps:

[0008] Composite the base fabric with a foaming printing paste applied on the front side and dried with a nanofiber membrane; the nanofiber membrane is composite on the back side of the base fabric;

[0009] The composite includes pre - fitting and post - bonding. The pre - fitting is to adsorb the nanofiber membrane to the back side of the base fabric; the post - bonding is to press the nanofiber membrane against a pressure roller and the front side of the base fabric against a heating roller, and bond the nanofiber membrane to the back side of the base fabric under the conditions of heat and pressure.

[0010] According to some preferred implementation aspects of the present invention, the deformation degree of the base fabric (the foamed base fabric) with a foaming printing paste applied on the front side and dried is less than the deformation degree that the blown nanofiber membrane can withstand, preventing the blown nanofiber membrane from breaking inside due to excessive deformation.

[0011] In some embodiments, preferably, the elastic elongation rate of the base fabric with a foaming printing paste applied on the front side and dried is 10 - 30%, the elastic elongation rate of the nanofiber membrane is 20 - 40%, and the elastic elongation of the prepared composite bubble - wrinkled anti - down - drilling fabric is 10 - 20%.

[0012] According to some preferred implementation aspects of the present invention, the pore diameter in the membrane of the nanofiber membrane is 400 - 700nm, and the porosity is 85 - 93%.

[0013] According to some preferred implementation aspects of the present invention, the nanofiber membrane is prepared by a blowing - spraying method: nanofibers are spun out by a row of blowing nozzles, and the solvent is washed out and solidified into a network in a water bath to obtain the nanofiber membrane; the jet pressure during blowing - spraying spinning is 0.08 - 0.12MPa. This water bath is a general reference. In fact, the coagulation bath in the water bath receiving tank is one or several of water, ethanol, and methanol.

[0014] According to some preferred implementation aspects of the present invention, the material of the nanofiber is polyurethane (PU), the diameter of the nanofiber is 250 - 500nm, and the average axial length of a single blown nanofiber is 30 - 100mm. The number of working blowing nozzles in the row of blowing nozzles depends on the width of the base fabric, and one working nozzle is added every 20 - 30cm (preferably 25cm). The distance from the nozzle to the surface of the water bath receiving tank is 25 - 50cm, and the thickness of the obtained nanofiber membrane is 0.3 - 1.2μm.

[0015] According to some preferred implementation aspects of the present invention, the pre - fitting is to set an adsorption roller on the front side of the base fabric. The surface of the adsorption roller is distributed with adsorption holes, the diameter of the adsorption holes is 3 - 6mm, and the negative air pressure inside the adsorption roller is - 0.4 - - 0.15MPa. To adsorb the blown nanofiber membrane combined with functional particles to the back side of the base fabric.

[0016] According to some preferred implementation aspects of the present invention, the surface of the heating roller is smooth, with a mesh number of 700 - 1200 meshes, and the heating temperature is 140 - 160 °C; the pressure between the heating roller and the pressure roller during lamination is 0.1 - 0.3 MPa. The pressure roller is a calender roller, and its contact surface with the fabric is treated with Teflon anti-sticking to prevent the blown and sprayed nanofiber membrane from contacting and bonding with the calender roller when heated.

[0017] The internal air suction device of the adsorption roller and the heating roller can preliminarily absorb and high-temperature dry the organic solvents and coagulation bath contained in the nanofibers, which is beneficial to improving the air conditions in the production environment and promoting the industrial application of the preparation method of the present invention.

[0018] According to some preferred implementation aspects of the present invention, the base fabric is a polyamide fabric with a yarn count density of 330 - 900 T.

[0019] According to some preferred implementation aspects of the present invention, by weight, the foaming printing paste comprises the following components: 40 - 45% of an adhesive, 15 - 20% of a filler, 35 - 38% of a plasticizer, 2 - 2.2% of a stabilizer, 2 - 2.5% of a foaming agent, and 0.5 - 2% of a regulator. The drying temperature of the base fabric coated with the foaming printing paste on the front side is 70 - 80 °C.

[0020] According to some preferred implementation aspects of the present invention, functional particles are provided on one side of the nanofiber membrane attached to the base fabric. The functional particles are sprayed onto the surface of the nanofiber membrane by an electrostatic spray gun, and the particle size of the functional particles is 0.8 - 5 μm.

[0021] According to some preferred implementation aspects of the present invention, the number of electrostatic spray guns in a row is the same as the number of working spinning air-blowing nozzles. The voltage applied to a single nozzle is 10 - 12 kV, and the flow rate is 0.2 - 5 mL / min.

[0022] According to some preferred implementation aspects of the present invention, the functional particles are one or more of a thermal binder, a far-infrared finishing agent, an antibacterial finishing agent, and an anti-ultraviolet finishing agent. The finishing agent is ultrasonicated in dimethylformamide (DMF) to prepare a dispersion for electrostatic spraying, and the concentration is 7 - 15%.

[0023] This application also provides a composite bubble wrinkle anti-feather leakage fabric prepared by the preparation method as described above. The fabric has a double-layer structure, including a layer of bubble wrinkle base fabric, a layer of blown and sprayed nanofiber membrane, and preferably functional nanoparticles evenly distributed between the bubble wrinkle base fabric and the blown and sprayed nanofiber membrane.

[0024] The basic principle of the present invention is as follows: The present invention uses nanofibers at a small scale as the structural layer for finishing the anti-down-feather drilling fabric. Since the diameter and pores of the nanofiber membrane are much smaller than the size of down feathers, there is no need for a multi-layer structure. The composite of a single-layer membrane and a nylon base fabric can prevent down feathers from drilling out without affecting the breathability and comfort of the fabric. The bubble wrinkle structure on the fabric surface can not only endow the product with a three-dimensional handfeel and unique texture, but also the fiber foaming and expansion is one of the reasons for the improved breathability. The composite elastic nanofiber membrane can expand and deform together with the foaming of the base fabric. Finally, the prepared product has a certain stretchability in the fabric structure, rather than an increase in the gaps between fibers, thus achieving the effect of preventing down feathers from drilling out. In addition, during the formation of the nanofiber membrane by blowing and spraying, in addition to the part that has not solidified in time having a certain viscosity and can adhere to the back of the base fabric under negative pressure, it is further softened and bonded under the action of a heating roller. A certain proportion of functional particles can be stably included between the double-layer fabrics, broadening the functional applications of down products.

[0025] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects of the present invention are as follows: The preparation method of the composite bubble wrinkle anti-down-feather drilling fabric of the present invention uses the traditional three-dimensional foaming process to form a wrinkle effect on the surface of the base fabric, and cooperates with the micro-structure of the nanofiber membrane to reduce the down feathers drilling out from the fabric surface in terms of scale. While achieving the effect of preventing down feathers from drilling out, the multi-porous channels improve the breathability of the fabric. In addition, the elastic nanofiber membrane combined with the wrinkle deformation of the base fabric can not only improve the appearance, but also endow the fabric with a certain stretching property, enhancing the wearing comfort of down products. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is the preparation flow chart of the composite bubble wrinkle anti-down-feather drilling fabric in the preferred embodiment of the present invention;

[0028] Figure 2 It is the structural schematic diagram of the composite bubble wrinkle anti-down-feather drilling fabric in the preferred embodiment of the present invention: Among them, Figure 2 On the left is the layer-by-layer schematic diagram of the product, and functional particles are included in the middle; Figure 2 On the right is the schematic diagram of the protrusions on the surface after foaming;

[0029] In the attached drawings, 1 is a base fabric roller; 2-1 is an adsorption roller; 2-2 is an internal air suction device; 3-1 is a blowing nozzle; 3-2 is an electrostatic spray gun; 3-3 is a water bath receiving tank; 4 is a tensioning device; 5 is a calender roller; 6 is a heating roller; 7 is a collecting roller; a is a base fabric; b is a functional particle; c is a nanofiber membrane. Detailed implementation mode

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present invention.

[0031] For those conditions not specified in the examples, they are carried out according to conventional conditions or conditions recommended by the manufacturer. For those reagents or instruments whose manufacturers are not specified, they are all conventional products that can be obtained through commercial purchase.

[0032] Example 1:

[0033] As Figure 1 shown, the preparation method of the composite bubble wrinkle-proof and anti-feather leakage fabric in this embodiment includes the following steps:

[0034] Step 1. Pretreatment of the base fabric

[0035] A commercially available nylon fabric (brand: CNT248003; Wujiang Fuhua Weaving Co., Ltd.) with a width of 1.5 m is coated with foaming printing paste by flat screen printing and dried. The drying temperature is 70 °C.

[0036] The material ratio of the foaming printing paste by weight is: adhesive 40.5%, filler 15%, plasticizer 35%, stabilizer 2%, foaming agent 2%, regulator 0.5%.

[0037] The elastic elongation of the base fabric (the foamed base fabric) with the foaming printing paste coated on the front and dried is 20%.

[0038] Step 2. Preparation of the blown nanofiber membrane

[0039] Preparation of the blown spinning solution: The PU masterbatch (brand: DY-602-5; Dongguan Dayue Plastic Technology Co., Ltd.) is dissolved in DMF at a ratio of 1:6, and stirred at 60 °C for 5 hours until completely dissolved to form a transparent and uniform blown spinning solution.

[0040] Preparation of nanofiber membrane: Nanofibers are spun from a row of air-blowing nozzles, the solvent is washed out in a water bath and solidified into a web to obtain a nanofiber membrane. When blowing and spraying, there are 6 working nozzles, the jet air pressure is 0.1 MPa, the spinning distance is 30 cm, the spinning speed is 5 mL / h, and the coagulation bath is an ethanol aqueous solution with a ratio of 1:3.

[0041] The diameter of the prepared nanofibers is 300 nm, and the average axial length of a single nanofiber obtained by blowing and spraying is 50 mm. The pore size in the nanofiber membrane is 550 nm, and the porosity is 90%; the thickness is 0.6 μm, and the elastic elongation rate is 30%.

[0042] Step 3: Preparation of electrostatic spraying solution

[0043] The far-infrared finishing agent (brand: YT-X620; Suzhou Yatu Textile Auxiliary Co., Ltd.) is ultrasonically dispersed in DMF for 3 hours to uniformly prepare an electrostatic spraying solution with a concentration of 1.5 wt%.

[0044] During production, the static voltage is 10 kV, the distance between the end of the spray gun and the surface of the water bath receiving pool is 15 cm, the spraying speed is 3 mL / h, and the spraying particle size is 1.5 μm.

[0045] Step 4: Fabric lamination

[0046] Pre-lamination: The nanofiber membrane is adsorbed to the back of the base fabric through an adsorption roller.

[0047] The base fabric a after foaming printing moves from the base fabric roller 1 to the surface under the adsorption roller 2-1 (the hole diameter is 5 mm). The internal air suction device 2-2 in the adsorption roller 2-1 provides a pressure of -0.2 MPa, and adsorbs and tightly adheres the blown and sprayed nanofiber membrane c sprayed with far-infrared functional particles b to the back of the base fabric a when it travels under the adsorption roller.

[0048] Post-bonding: The nanofiber membrane is laminated to the calendering roller 5, and the front of the base fabric is laminated to the heating roller 6. Under the conditions of heating and pressure, the nanofiber membrane is bonded to the back of the base fabric.

[0049] Subsequently, the base fabric a with the blown and sprayed nanofiber membrane c enters between the heating roller 6 with a surface mesh number of 850 and the calendering roller 5 under the clamping of the tension device 4. The surface of the heating roller is smooth, with a mesh number of 1000, the heating temperature is 160 °C, and the pressure during lamination between the heating roller and the pressure roller is 0.3 MPa. The pressure roller is the calendering roller, and its contact surface with the fabric is treated with Teflon anti-sticking to prevent the blown and sprayed nanofiber membrane from contacting and bonding with the calendering roller when heated.

[0050] After foaming and shaping, it is collected by the collecting roller 7 to obtain a composite bubble crease anti-down drilling fabric with far-infrared performance, and its elastic elongation is 20%.

[0051] The internal air suction device of the adsorption roller and the heating roller can preliminarily absorb the organic solvents and coagulation bath contained in the nanofibers and perform high-temperature drying, which is beneficial to improving the air conditions in the production environment.

[0052] Example 2: The specific steps of this example are similar to those of Example 1, except that: the functional particles in this example are ultraviolet-resistant finishing agents (brand: Rayoshan P, Suzhou Yatu Textile Auxiliaries Co., Ltd.).

[0053] Comparative Example 1:

[0054] The specific steps of this comparative example are similar to those of Example 1, except that: the commercially available polyamide fabric with a width of 1.5 m in this comparative example was not pretreated, and finally the obtained composite fabric had no apparent air bubbles and wrinkles.

[0055] Comparative Example 2:

[0056] The specific steps of this comparative example are similar to those of Example 1, except that: there is no electrostatic spraying step in this comparative example, that is, there are no functional particles in the fabric.

[0057] Comparative Example 3: The test object of this comparative example is the same commercially available polyamide fabric as in Example 1.

[0058] Comparative Example 4: The specific steps of this comparative example are similar to those of Example 1, except that: the functional particles in this comparative example are hot-melt powders (brand: Parkw8e3JD, Donglai Home Improvement Building Materials Franchise Store). [[ID=:22]]

[0059] Example 4 Composite Air Bubble Wrinkle and Down-Proof Fabric

[0060] As Figure 2 shown, this example provides a composite air bubble wrinkle and down-proof fabric prepared by the preparation method based on Example 1. It has a double-layer structure, including a layer of air bubble wrinkle base fabric, a layer of blown and sprayed nanofiber membrane, and functional nanoparticles uniformly distributed between the air bubble wrinkle base fabric and the blown and sprayed nanofiber membrane.

[0061] The material of the nanofiber membrane in this example is polyurethane (PU), the pore size in the membrane is 550 nm, the porosity is 90%, and the thickness is 0.6 μm. The base fabric is a polyamide fabric. Functional particles of far-infrared finishing agent are provided on one side of the nanofiber membrane attached to the base fabric, and the functional particles are sprayed onto the surface of the nanofiber membrane by an electrostatic spray gun, and the particle size of the functional particles is 1.5 μm.

[0062] Among them, the deformation degree of the base fabric (the foamed base fabric) coated with foaming printing paste on the front side and dried is less than the deformation degree that the blown nanofiber membrane can withstand, preventing the blown nanofiber membrane from breaking inside due to excessive deformation. In this embodiment, the elastic elongation rate of the base fabric (the foamed base fabric) coated with foaming printing paste on the front side and dried is 20%, the elastic elongation rate of the nanofiber membrane is 30%, and the elastic elongation of the prepared composite bubble-wrinkle anti-feather leakage fabric is 20%.

[0063] Testing and Results

[0064] The fabrics obtained in Examples 1, 2, 3 and Comparative Examples 1, 2, 3 were tested for grammage, tensile strength, air permeability, anti-feather leakage property, far-infrared and ultraviolet resistance. Among them, the grammage test method refers to GB / T8628-2001; the mechanical test method refers to GB / T 3923.1-2013; the air permeability test method refers to GB / T5453-1997; the anti-feather leakage test method refers to GB / T14272-2021; the washing method is the hotel industrial washing method; the ultraviolet resistance test method refers to GB / T18830-2009; UPF: ultraviolet protection factor; the far-infrared test method refers to GB / T 30127-2013; η: far-infrared emissivity (not less than 88%); ΔT: temperature rise (not less than 1.4°C). The test results are shown in Table 1:

[0065] Table 1 Test Results

[0066]

[0067] It can be seen from the data in Table 1 that the composite fabrics obtained in the examples have good air permeability on the basis of excellent anti-feather leakage performance, and the fabrics are light and thin. The addition of functional particles has little effect on the air permeability. This method can be used to reasonably design the additional functions of down products. Although the addition of the hot melt adhesive in Comparative Example 4 increases the strength, it melts due to heat and bonds the gaps between the fabrics, which has a greater impact on the air permeability. In addition, due to the formation of a special wrinkled structure on the fabric by foaming printing, it has better elastic recovery ability than the comparative examples without foaming and wrinkling.

[0068] Bubble wrinkle is a special pattern produced by finishing the fabric using the foaming printing process, which causes local fibers to expand under high temperature to generate pattern wrinkles. It can not only make the fabric produce three-dimensional and beautiful wrinkles, but also flexibly modify some fibers in the fabric. The purpose of the present invention is to design a fabric for lightweight down, combining the bubble wrinkle process and nanofiber spinning technology to solve the problem that it is difficult to balance the anti-feather leakage property and breathable comfort, lightness and durability in use, and simplicity of preparation process and product practicality in the prior art. By using the traditional three-dimensional foaming process to form a wrinkle effect on the surface of the base fabric and cooperating with the microstructure of the nanofiber membrane, the scale of the down fiber drilling out from the fabric surface is reduced. While achieving the anti-feather leakage effect, the multi-porous channels improve the breathable performance of the fabric; in addition, the elastic nanofiber membrane combined with the wrinkle deformation of the base fabric can not only improve the appearance, but also endow the fabric with certain tensile properties, enhancing the wearing comfort of the down product.

[0069] The composite bubble wrinkle anti-feather leakage fabric of the present application is composed of a nylon base fabric finished with bubble wrinkles and a blown nanofiber membrane, and functional particles are electrostatically sprayed between the double-layer fabrics. Specifically, when the base fabric a coated with foaming printing paste on the front side and dried is conveyed from the base fabric roller 1 to the bottom of the adsorption roller 2, due to the negative pressure generated by the internal air suction device 2-2 in the adsorption roller 2-1, the blown nanofiber membrane c with functional nanoparticles b is adsorbed on the lower surface of the adsorption roller 2-1 and compounded with the reverse side of the base fabric a. Subsequently, under the tension and relaxation of the tension device 4, the reverse side of the fabric is closely attached to the calender roller 5, and its front side is pressed by the heating roller 6. After the fabric undergoes high-temperature foaming and shaping, it is wound on the collecting roller 7; the blown nanofiber is spun out by the row of air-blowing nozzles 3-1, and the solvent is precipitated and solidified into a web in the water bath receiving pool 3-3. Then, it receives functional nanoparticles through the row of electrostatic spray guns 3-2 and moves to the lower part of the adsorption roller 2-1 under the drive of the water bath. The holes on the surface of the adsorption roller can initially absorb the solvent in the blown nanofiber membrane under negative pressure conditions.

[0070] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A preparation method of a composite bubble-crease anti-feather leakage fabric, characterized in that, It includes the following steps: Composite a base fabric with a foamed printing paste applied on the front side and dried with a nanofiber membrane; the nanofiber membrane is composite on the back side of the base fabric; The composite includes pre-lamination and post-bonding. The pre-lamination is to adsorb the nanofiber membrane to the back side of the base fabric; the post-bonding is to press the nanofiber membrane against a pressure roller and the front side of the base fabric against a heating roller. Under the conditions of heat and pressure, bond the nanofiber membrane to the back side of the base fabric; The nanofiber membrane is prepared by a blow-spray method: spin out nanofibers from an array of air-blowing nozzles, wash out the solvent in a water bath and solidify into a web to obtain the nanofiber membrane; The base fabric is a nylon fabric with a yarn count density of 330 - 900T, and the elastic elongation rate of the base fabric after printing and foaming is 10 - 30%; 2. The preparation method according to claim 1, wherein The elastic elongation rate of the nanofiber membrane is 20 - 40%, the pore size in the membrane is 400 - 700nm, and the porosity is 85 - 93%; 3. The preparation method according to claim 1, wherein The mesh number of the heating roller is 700 - 1200 mesh, and the heating temperature is 140 - 160°C; the pressure between the heating roller and the pressure roller during lamination is 0.1 - 0.3MPa; 4. The preparation method according to claim 1, wherein The pre-lamination is to set an adsorption roller on the front side of the base fabric. The surface of the adsorption roller is distributed with adsorption holes, the diameter of the adsorption holes is 3 - 6mm, and the negative air pressure inside the adsorption roller is -0.4 - -0.15MPa; 5. The preparation method according to claim 1, wherein The jet pressure during blow-spray spinning is 0.08 - 0.12MPa; 6. The preparation method according to claim 5, characterized in that, The diameter of the nanofibers is 250 - 500nm, and the average axial length of a single nanofiber obtained by blow-spray is 30 - 100mm; 7. The preparation method according to claim 1, characterized in that, By weight, the foamed printing paste includes the following components: 40 - 45% of an adhesive, 15 - 20% of a filler, 35 - 38% of a plasticizer, 2 - 2.2% of a stabilizer, 2 - 2.5% of a foaming agent, and 0.5 - 2% of a regulator; 8. The preparation method according to any one of claims 1-7, characterized in that, Functional particles are provided on the side of the nanofiber membrane bonded to the base fabric. The functional particles are sprayed onto the surface of the nanofiber membrane by an electrostatic spray gun, and the particle size of the functional particles is 0.8 - 5μm; 9. A composite bubble wrinkle and anti-feather leakage fabric prepared by the preparation method according to any one of claims 1 - 8.

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