A composite mesh material and its preparation method and application

Abstract

The present invention relates to the technical field of composite fabrics, specifically to a composite mesh material and a preparation method and application thereof, comprising a woven layer, a sanded layer, a hot melt adhesive layer and a hydrophobic coating. The woven layer is woven from viscose fibers dispersed with nano-scale AIBN, nano-scale inert metals and micron-scale AIBN. The sanded layer is formed on the surface of the woven layer, the hot melt adhesive layer is located at the bottom of the woven layer, and the hydrophobic coating is sprayed on the surfaces of the woven layer and the sanded layer. Through the preparation method, nano-scale and micron-scale gaps are formed on the surface of the viscose fibers during the wet spinning process, and these gaps cooperate with the embedded nano-scale inert metals to form a microscopic hydrophobic structure. In addition, even if the surface is worn, the composite mesh material still has good hydrophobicity, can achieve waterproof, oil-proof and anti-fouling effects, and at the same time avoid the composite mesh material surface from losing its waterproof, oil-proof and anti-fouling properties due to wear.

Description

Technical Field

[0001] The present invention relates to the field of composite fabrics, and in particular to a composite mesh material and a preparation method and application thereof. Background Art

[0002] Traditional shoe uppers are mainly made of leather. Due to the high procurement cost of natural leather, the upper leather is mainly made of artificial leather (such as PU leather and PVC leather). With the development of technology, flyknit shoes with mesh as the upper material have been developed. This type of upper is made of fiber weaving, has good breathability and moisture permeability and is lightweight. It has now become the mainstream upper of sports shoes.

[0003] The above-mentioned shoe upper is made of woven fibers and therefore has many gaps, so the shoe upper is easily contaminated. Moreover, since the fibers have a certain hygroscopicity, they easily absorb pollutants such as sewage and oil stains. Based on this situation, the purpose of the present invention is to propose a mesh material for shoes with waterproof, oil-proof and anti-fouling properties to solve the above-mentioned problems. Summary of the Invention

[0004] The object of the present invention is to provide a composite mesh material to solve the problems mentioned in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a woven layer, a sanded layer, a hot melt adhesive layer and a hydrophobic coating, wherein the woven layer is woven from viscose fibers, and fillers with a mass fraction of 2-6% of viscose fibers are uniformly dispersed in the viscose fibers, and the fillers include nano-AIBN, nano-inert metals and micron-AIBN, and the mass fractions are 10-20 parts of nano-AIBN, 15-40 parts of nano-inert metals and 20-30 parts of micron-AIBN, wherein AIBN refers to azobisisobutyronitrile (C8H 12 N4, (CH3)2C(CN)-N=NC(CN)(CH3)2, white crystalline powder, insoluble in water). Under light conditions, the nano-scale AIBN and micro-scale AIBN on the surface of viscose fiber decompose to form micron-scale depressions and nano-scale depressions. Nano-scale inert metals are embedded in these holes to form nano-scale protrusions, which can form a microscopic hydrophobic structure on the surface of viscose fiber.

[0006] The abraded layer is formed on the surface of the woven layer. The woven layer is formed by rubbing the surface of the woven layer with a abrasive machine. During the abrading process, the viscose fibers covering the nano-scale AIBN, nano-scale inert metal and micron-scale AIBN are abraded, so that the viscose fibers are fully exposed to the external environment.

[0007] The hot melt adhesive layer is located at the bottom of the woven layer. The hot melt adhesive layer plays a bonding role to ensure that the composite mesh material can be matched with other upper materials (such as the midsole and upper). Low melting point hot melt adhesive materials are preferably used;

[0008] The hydrophobic coating is sprayed on the surfaces of the woven layer and the sanded layer to form a hydrophobic coating on the surfaces of the woven layer and the sanded layer, thereby further improving the hydrophobicity of the woven layer and the sanded layer.

[0009] To further explain the above technical solution: the nano-scale inert metal is any one of nano-platinum, nano-silver and nano-gold, the particle size of the nano-scale inert metal is between 10-30nm and the mass ratio of the nano-scale inert metal to nano-scale AIBN is 1:1.5-1:2. Nano-silver particles are preferably used. Nano-silver can have a bactericidal and antibacterial effect. At the same time, nano-silver can cooperate with the nano-scale and micro-scale depressions formed after the decomposition of nano-scale AIBN and micron-scale AIBN to form a hydrophobic microstructure.

[0010] To optimize the above technical solution, further measures are taken as follows: the woven layer is divided into a woven upper layer and a woven lower layer, the fabric density of the woven upper layer is greater than that of the woven lower layer, the fabric upper layer is dense to form a dense brushed layer, and the relatively coarse woven lower layer has large gaps for air circulation. The purpose of this setting is to improve the air permeability and wearing comfort of the composite upper material and avoid covering the feet.

[0011] As a further explanation of the technical solution: the nano-scale AIBN particle size is 10-30nm, and the micron-scale AIBN particle size is 10-30μm.

[0012] As an improvement to the above technical solution: the hydrophobic coating specifically uses 1H,1H,2H,2H-perfluorodecyl mercaptan, and 1H,1H,2H,2H-perfluorodecyl mercaptan is sprayed on the woven layer and the sanded layer to further improve the waterproof, oil-proof and anti-fouling capabilities of the woven layer and the sanded layer.

[0013] In addition, the present invention also provides a method for preparing the aforementioned composite mesh material, comprising the following steps:

[0014] a. Prepare the viscose liquid and filler, mix the filler and viscose liquid, and vacuum degas;

[0015] b. The viscose liquid is fed into the spinneret through a metering pump. The spinneret aperture is not less than 0.05 mm. After spinning, the viscose fiber is formed in a coagulation bath. The desired viscose fiber is obtained after washing and drying.

[0016] c. The viscose fiber is fed into a computerized flat knitting machine to form a woven layer, and the bottom surface of the output woven layer is laminated with a hot melt adhesive layer with release paper / release film;

[0017] d. The woven layer is output and sanded to form a sanded layer on the surface of the woven layer;

[0018] e. UV light continuously irradiates the surface of the woven layer and the brushed layer to fully decompose the nano-scale AIBN and micro-scale AIBN exposed on the surface of the viscose fiber;

[0019] f. Spray hydrophobic coating on the surface of the woven layer and the sanded layer, and output after drying.

[0020] As a further improvement to the above technical solution: shading is performed during the preparation process of steps ad, the purpose of which is to avoid light decomposition of AIBN during the preparation process.

[0021] Preferably, the invention further comprises equipment for performing the preparation method, the equipment comprising a ball mill, a wet spinning machine, a computerized flat knitting machine, a first conveying roller, a first laminating roller, a first heating roller, a first cooling roller, a second laminating roller, a second heating roller, a second cooling roller, a sueding machine, a UV lamp and a nozzle;

[0022] The ball mill is used to prepare nano-level AIBN and micro-level AIBN;

[0023] The wet spinning machine is used to prepare viscose fibers;

[0024] The computerized flat knitting machine is used to weave viscose fibers into a woven layer;

[0025] The first conveying roller is used for conveying release paper / release film;

[0026] The second conveying roller is used for conveying the hot melt adhesive film;

[0027] The first laminating roller is used for laminating the release paper / release film and the hot melt adhesive film;

[0028] The first heating roller is used to heat the laminated release paper / release film and hot melt adhesive film, and the first heating roller is connected to the heating device;

[0029] The first cooling roller is used to cool the hot melt adhesive film, and the first cooling roller is connected to an external water cooling device;

[0030] The second laminating roller is used to laminate the hot melt adhesive film with release paper / release film to the woven layer;

[0031] The second heating roller is used to heat the hot melt adhesive film with release paper / release film laminated to the woven layer;

[0032] The second cooling roller is used to cool the hot melt adhesive film heated by the second heating roller;

[0033] The sanding machine is used to rub the woven layer to form a sanding layer;

[0034] The UV lamp is used to continuously irradiate the woven layer and the sanded layer;

[0035] The nozzle is used for spraying the hydrophobic coating onto the woven layer and the sanded layer.

[0036] As a further explanation of the above technical solution, along the conveying direction of the composite mesh material, the gap between adjacent UV lamp tubes gradually decreases, and the wavelength of the UV lamp light gradually becomes smaller. This design is intended to control the decomposition rate of AIBN. In the initial stage, long-wave / medium-wave UV light irradiates AIBN to prevent AIBN from decomposing too quickly and producing excessive gas, which causes nano-scale and micron-scale depressions to be stretched and deformed. In the subsequent stage, the gas generated by the decomposition of AIBN is not easy to stretch and deform the nano-scale and micron-scale depressions, and short-wave UV light is used to improve the decomposition efficiency of AIBN.

[0037] In addition, the present invention also provides a sports shoe, which includes the aforementioned composite mesh material or the structure of the sports shoe includes the composite mesh material prepared by the aforementioned composite mesh material preparation method.

[0038] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages:

[0039] a. Nano- and micron-sized AIBN is decomposed by light exposure to form nano- and micron-sized pores on the surface of viscose fibers. These pores, combined with the silver nanoparticles embedded in the microscopic pores, create a hydrophobic structure similar to the surface of a lotus leaf, exhibiting excellent water-, oil-, and stain-resistant properties.

[0040] b. After the composite mesh material is worn, the nano-scale AIBN and micro-scale AIBN on the worn surface are exposed to the outside world. Under light, they will decompose and form nano-scale and micro-scale holes in the viscose fibers on the worn surface. When combined with nano-silver, the composite mesh material can still exhibit hydrophobicity and have good waterproof, oil-proof and anti-fouling capabilities, thus preventing the composite mesh material from losing its waterproof, oil-proof and anti-fouling properties due to wear;

[0041] c. While ensuring the waterproof, oil-proof and anti-fouling properties of the composite mesh material, the density difference is created to make the fabric breathable and moisture-permeable, which can prevent feet from being covered and smelly, and help improve wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 This is a schematic diagram of the product structure of the present invention;

[0044] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0045] Figure 3 This is a schematic diagram of the connection structure of the composite mesh material production equipment;

[0046] In the figure: woven layer 1, woven upper layer 101, woven lower layer 102, sanded layer 2, hot melt adhesive layer 3, ball mill 401, wet spinning machine 402, computerized flat knitting machine 403, first conveyor roller 404, second conveyor roller 405, first laminating roller 406, first heating roller 407, first cooling roller 408, second laminating roller 409, second heating roller 4010, second cooling roller 4011, sanding machine 4012, UV lamp 4013, nozzle 4014 DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0048] The present invention provides a composite mesh material, including a woven layer 1, a sanded layer 2, a hot melt adhesive layer 3 and a hydrophobic coating. The woven layer 1 is woven from viscose fibers. The woven layer 1 is divided into a woven upper layer 101 and a woven lower layer 102. The fabric density of the woven upper layer 101 is greater than that of the woven lower layer 102.

[0049] Fillers with a mass fraction of 2% of viscose fiber are uniformly dispersed in the viscose fiber. The fillers include nano-grade AIBN, nano-silver and micron-grade AIBN. The fillers are 10 parts by mass of nano-grade AIBN, 15 parts by mass of nano-silver and 25 parts by mass of micron-grade AIBN. The particle size of nano-grade AIBN is 10-30 nm, the particle size of micron-grade AIBN is 10-30 μm, the particle size of nano-silver is between 10-30 nm, and the mass ratio of nano-silver to nano-grade AIBN is 1:1.5.

[0050] The sanding layer 2 is formed on the surface of the woven layer 1 .

[0051] The hot melt adhesive layer 3 is located at the bottom of the woven layer 1 and is made of low melting point hot melt adhesive.

[0052] The hydrophobic coating is sprayed on the surfaces of the woven layer 1 and the sanded layer 2. The hydrophobic coating is specifically made of 1H,1H,2H,2H-perfluorodecyl mercaptan. Example 2

[0053] The present invention provides a composite mesh material, including a woven layer 1, a sanded layer 2, a hot melt adhesive layer 3 and a hydrophobic coating. The woven layer 1 is woven from viscose fibers. The woven layer 1 is divided into a woven upper layer 101 and a woven lower layer 102. The fabric density of the woven upper layer 101 is greater than that of the woven lower layer 102.

[0054] Fillers with a mass fraction of 4% of viscose fiber are uniformly dispersed in the viscose fiber. The fillers include nano-grade AIBN, nano-silver and micron-grade AIBN. The fillers are 10 parts by mass of nano-grade AIBN, 15 parts of nano-silver and 25 parts of micron-grade AIBN. The particle size of nano-grade AIBN is 10-30 nm, the particle size of micron-grade AIBN is 10-30 μm, the particle size of nano-silver is between 10-30 nm, and the mass ratio of nano-silver to nano-grade AIBN is 1:1.5.

[0055] The sanding layer 2 is formed on the surface of the woven layer 1 .

[0056] The hot melt adhesive layer 3 is located at the bottom of the woven layer 1 and is made of low melting point hot melt adhesive.

[0057] The hydrophobic coating is sprayed on the surfaces of the woven layer 1 and the sanded layer 2. The hydrophobic coating is specifically made of 1H,1H,2H,2H-perfluorodecyl mercaptan. Example 3

[0058] The present invention provides a composite mesh material, including a woven layer 1, a sanded layer 2, a hot melt adhesive layer 3 and a hydrophobic coating. The woven layer 1 is woven from viscose fibers. The woven layer 1 is divided into a woven upper layer 101 and a woven lower layer 102. The fabric density of the woven upper layer 101 is greater than that of the woven lower layer 102.

[0059] Fillers with a mass fraction of 6% of viscose fiber are uniformly dispersed in the viscose fiber. The fillers include nano-grade AIBN, nano-silver and micron-grade AIBN. The fillers are 10 parts by mass of nano-grade AIBN, 15 parts by mass of nano-silver and 25 parts by mass of micron-grade AIBN. The particle size of nano-grade AIBN is 10-30 nm, the particle size of micron-grade AIBN is 10-30 μm, the particle size of nano-silver is between 10-30 nm, and the mass ratio of nano-silver to nano-grade AIBN is 1:1.5.

[0060] The sanding layer 2 is formed on the surface of the woven layer 1 .

[0061] The hot melt adhesive layer 3 is located at the bottom of the woven layer 1 and is made of low melting point hot melt adhesive.

[0062] The hydrophobic coating is sprayed on the surfaces of the woven layer 1 and the sanded layer 2. The hydrophobic coating is specifically made of 1H,1H,2H,2H-perfluorodecyl mercaptan. Example 4

[0063] The present invention provides a composite mesh material, including a woven layer 1, a sanded layer 2, a hot melt adhesive layer 3 and a hydrophobic coating. The woven layer 1 is woven from viscose fibers. The woven layer 1 is divided into a woven upper layer 101 and a woven lower layer 102. The fabric density of the woven upper layer 101 is greater than that of the woven lower layer 102.

[0064] Fillers with a mass fraction of 4% of viscose fiber are uniformly dispersed in the viscose fiber. The fillers include nano-grade AIBN, nano-silver and micron-grade AIBN. By mass, the nano-grade AIBN is 15 parts, the nano-silver is 27 parts and the micron-grade AIBN is 27 parts. The particle size of the nano-grade AIBN is 10-30 nm, the particle size of the micron-grade AIBN is 10-30 μm, the particle size of the nano-silver is between 10-30 nm, and the mass ratio of the nano-silver to the nano-grade AIBN is 1:1.5.

[0065] The sanding layer 2 is formed on the surface of the woven layer 1 .

[0066] The hot melt adhesive layer 3 is located at the bottom of the woven layer 1 and is made of low melting point hot melt adhesive.

[0067] The hydrophobic coating is sprayed on the surfaces of the woven layer 1 and the sanded layer 2. The hydrophobic coating is specifically made of 1H,1H,2H,2H-perfluorodecyl mercaptan. Example 5

[0068] The present invention provides a composite mesh material, including a woven layer 1, a sanded layer 2, a hot melt adhesive layer 3 and a hydrophobic coating. The woven layer 1 is woven from viscose fibers. The woven layer 1 is divided into a woven upper layer 101 and a woven lower layer 102. The fabric density of the woven upper layer 101 is greater than that of the woven lower layer 102.

[0069] Fillers with a mass fraction of 4% of viscose fiber are uniformly dispersed in the viscose fiber. The fillers include nano-grade AIBN, nano-silver and micron-grade AIBN. The fillers are 20 parts by mass of nano-grade AIBN, 40 parts by mass of nano-silver and 30 parts by mass of micron-grade AIBN. The particle size of nano-grade AIBN is 10-30 nm, the particle size of micron-grade AIBN is 10-30 μm, the particle size of nano-silver is between 10-30 nm, and the mass ratio of nano-silver to nano-grade AIBN is 1:1.5.

[0070] The sanding layer 2 is formed on the surface of the woven layer 1 .

[0071] The hot melt adhesive layer 3 is located at the bottom of the woven layer 1 and is made of low melting point hot melt adhesive.

[0072] The hydrophobic coating is sprayed on the surfaces of the woven layer 1 and the sanded layer 2. The hydrophobic coating is specifically made of 1H,1H,2H,2H-perfluorodecyl mercaptan.

[0073] In addition, a method for preparing the composite mesh material is provided, comprising the following steps:

[0074] a. Raw wood pulp / cotton linters (a-cellulose content ≥ 90%) are immersed in 18% NaOH solution, controlled at 20-25°C for 60-120 minutes to generate alkali cellulose (C6H 10 O5·NaOH), squeeze and separate the excess NaOH solution, alkali cellulose and CS, react in a closed reactor at a temperature of 20-30℃ for 2-3 hours to produce cellulose xanthate, cellulose xanthate is dissolved in 4% NaOH solution and allowed to stand (15-20℃, 24-48 hours) to obtain viscose solution. This step is a commonly used viscose fiber preparation method in the art, and then prepare filler, mix the filler with the viscose solution, and vacuum degassing;

[0075] b. The viscose liquid is fed into a spinneret through a metering pump. The spinneret aperture is not less than 0.05 mm. After spinning, it is passed through a coagulation bath (Na2SO4, ZnSO4 solution, 40-50°C) to form viscose fibers. The desired viscose fibers are then washed and dried.

[0076] c. viscose fiber is input into a computerized flat knitting machine to form a woven layer 1, and the bottom surface of the woven layer 1 is composited with a hot melt adhesive layer 3 with a release paper / release film;

[0077] d. The woven layer 1 is output and sanded to form a sanded layer 2 on the surface of the woven layer 1. During implementation, the parameters of the sanding process can be changed according to actual needs to control the thickness of the sanded layer 2 and the length of the hair fibers;

[0078] e. UV light continuously irradiates the surface of the woven layer 1 and the sanded layer 2;

[0079] f. Spray a hydrophobic coating on the surface of the woven layer 1 and the brushed layer 2, and output after drying.

[0080] Also included are equipment for performing the above-mentioned preparation method, including a ball mill 401, a wet spinning machine 402, a computerized flat knitting machine 403, a first conveyor roller 404, a second conveyor roller 405, a first laminating roller 406, a first heating roller 407, a first cooling roller 408, a second laminating roller 409, a second heating roller 4010, a second cooling roller 4011, a suede machine 4012, a UV lamp 4013, and a nozzle 4014;

[0081] The ball mill 401 is used to prepare nano-scale AIBN and micro-scale AIBN;

[0082] The wet spinning machine 402 is used to prepare viscose fibers;

[0083] The computerized flat knitting machine 403 is used to weave viscose fibers into a woven layer 1;

[0084] The first conveying roller 404 is used to convey the release paper / release film;

[0085] The second conveying roller 405 is used to convey the hot melt adhesive film;

[0086] The first laminating roller 406 is used to laminate the release paper / release film and the hot melt adhesive film, so that the first heating roller 407 can heat the two.

[0087] The first heating roller 407 is used to heat the laminated release paper / release film and hot melt adhesive film, and the first heating roller 407 is connected to an external heating device;

[0088] The first cooling roller 408 is used to cool the hot melt adhesive film. The first cooling roller 408 is connected to an external water cooling device. The purpose of the setting is to cool and harden the hot melt adhesive film and adhere it to the surface of the release paper / release film.

[0089] The second laminating roller 409 is used to laminate the hot melt adhesive film with release paper / release film to the woven layer 1;

[0090] The second heating roller 4010 is used to heat the hot melt adhesive film with release paper / release film attached to the woven layer 1;

[0091] The second cooling roller 4011 is used to cool the hot melt adhesive film heated by the second heating roller 4010;

[0092] The sanding machine 4012 is used to rub the woven layer 1 to form the sanding layer 2;

[0093] The UV lamp 4013 is used to continuously irradiate the woven layer 1 and the sanded layer 2, so as to decompose the nano-scale AIBN and micro-scale AIBN on the surface of the viscose fiber to form nano-scale and micro-scale holes;

[0094] The nozzle 4014 is used to spray a hydrophobic coating onto the woven layer 1 and the sanded layer 2 , thereby forming a hydrophobic coating on the surface of the woven layer 1 and the sanded layer 2 .

[0095] Table 1. Waterproof performance test of each embodiment (test method refers to GB / T4745-2012 standard)

[0096]

[0097] From Table 1, it can be seen that all embodiments have good waterproof performance. The reason is that after the nano-level AIBN and micron-level AIBN are decomposed by light, nano-level and micron-level pores are formed on the surface of the viscose fiber. Nanosilver particles are embedded in these pores to form a hydrophobic structure similar to the surface of a lotus leaf. At the same time, the fluffy brushed layer 2 and the porous viscose fiber surface can increase the area of ​​cooperation with the hydrophobic coating, thus showing good waterproof performance.

[0098] Table 2. Oil resistance performance test of each embodiment (test method refers to GB / T19977-2014 standard)

[0099]

[0100] From Table 2, it can be seen that all examples have good oil-proof performance. The reason why Example 5 has better oil-proof performance than other examples is that Example 5 has more nanosilver by mass, which can be embedded in micron-sized pores to form more and denser hydrophobic structures, thus having better oil-proof performance than other examples.

[0101] Table 3. Antifouling performance test of each embodiment (test method refers to FZ / T01118-2012 standard)

[0102]

[0103] From Table 3, it can be seen that each embodiment exhibits good anti-fouling performance.

[0104] Table 4. Strength test of each embodiment (test method refers to GB / T 3923.2-2013 standard)

[0105]

[0106] Table 4 tests the strength of each embodiment. It can be seen that the strength of Example 3 is much lower than that of the others. The reason is that the proportion of added filler is too large, which leads to a decrease in the strength of the viscose fiber. In actual production, in order to increase the strength, the viscose fiber can be blended with other fibers to improve the strength of the woven layer 1.

[0107] Working principle: The nano-scale AIBN and micron-scale AIBN on the surface of viscose fiber decompose under light, leaving nano-scale and micron-scale holes on the surface of viscose fiber. Nano-silver particles are embedded in these micron-scale and nano-scale holes to form a microscopic hydrophobic structure, which can play a role in waterproofing, oil-proofing and anti-fouling. At the same time, the surface of viscose fiber has a large specific surface area due to the presence of many nano-scale and micron-scale holes. Combined with the fluffy brushed layer 2 and the hydrophobic coating, it has excellent waterproofing, oil-proofing and anti-fouling capabilities.

[0108] The technical advancement achieved by the present invention over the prior art is that when the viscose fiber surface is worn or the hydrophobic coating formed by the hydrophobic coating disappears, the hydrophobicity of the composite mesh material does not disappear. The reason is that the nano-scale AIBN and micron-scale AIBN on the worn surface will decompose when exposed to external light, causing the viscose fiber to form nano-scale and micron-scale holes on the worn surface. When combined with nano-silver, the composite mesh material can still exhibit hydrophobicity and have good water-proof, oil-proof and anti-fouling capabilities.

[0109] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A composite mesh material, characterized by: It includes a woven layer, a brushed layer, a hot melt adhesive layer and a hydrophobic coating; The woven layer is composed of viscose fibers, and fillers with a mass fraction of 2-6% of viscose fibers are uniformly dispersed in the viscose fibers. The fillers include nano-scale AIBN, nano-scale inert metals, and micron-scale AIBN. By mass, the nano-scale AIBN is 10-20 parts, the nano-scale inert metals are 15-40 parts, and the micron-scale AIBN is 20-30 parts. Under light conditions, the nano-scale AIBN and micron-scale AIBN on the surface of the viscose fibers decompose to form micron-scale holes and nano-scale holes. The nano-scale inert metals are embedded in these holes to form nano-scale protrusions, forming a microscopic hydrophobic structure on the surface of the viscose fibers. The sanding layer is formed on the surface of the woven layer; The hot melt adhesive layer is located at the bottom of the woven layer; The hydrophobic coating is sprayed on the surfaces of the woven layer and the sanded layer.

2. A composite mesh material according to claim 1, characterized in that: The nano-scale inert metal is any one of nano-platinum, nano-silver and nano-gold, the particle size of the nano-scale inert metal is between 10-30 nm, and the mass ratio of the nano-scale inert metal to the nano-scale AIBN is 1:1.5-1:

2.

3. The composite mesh material according to claim 1, characterized in that: The woven layer is divided into a woven upper layer and a woven lower layer, and the fabric density of the woven upper layer is greater than the fabric density of the woven lower layer.

4. The composite mesh material according to claim 1, characterized in that: The particle size of nano-scale AIBN is 10-30nm, and the particle size of micro-scale AIBN is 10-30μm.

5. The composite mesh material according to claim 1, characterized in that: The hydrophobic coating specifically uses 1H,1H,2H,2H-perfluorodecyl mercaptan.

6. A method for preparing a composite mesh material, for preparing the composite mesh material according to any one of claims 1 to 5, characterized in that: The steps include: a. Prepare the viscose liquid and filler, mix the filler and viscose liquid, and vacuum degas; b. The viscose liquid is fed into the spinneret through a metering pump with a pore size of ≥0.05mm. After spinning, it is passed through a coagulation bath to form viscose fibers, which are then washed and dried to obtain the desired viscose fibers; c. The viscose fiber is fed into a computerized flat knitting machine to form a woven layer, and the bottom surface of the output woven layer is laminated with a hot melt adhesive layer with release paper / release film; d. The woven layer is output and sanded to form a sanded layer on the surface of the woven layer; e. UV light continuously irradiates the surface of the woven layer and the sanded layer; f. Spray hydrophobic coating on the surface of the woven layer and the sanded layer, and output after drying.

7. The method for preparing a composite mesh material according to claim 6, characterized in that: During the preparation process of steps ad, light is shielded.

8. The method for preparing a composite mesh material according to claim 6, characterized in that: Also included is an apparatus for performing the preparation method, the apparatus comprising a ball mill, a wet spinning machine, a computerized flat knitting machine, a first conveying roller, a second conveying roller, a first laminating roller, a first heating roller, a first cooling roller, a second laminating roller, a second heating roller, a second cooling roller, a sueding machine, a UV lamp, and a nozzle; The ball mill is used to prepare nano-level AIBN and micro-level AIBN; The wet spinning machine is used to prepare viscose fibers; The computerized flat knitting machine is used to weave viscose fibers into a woven layer; The first conveying roller is used for conveying release paper / release film; The second conveying roller is used for conveying the hot melt adhesive film; The first laminating roller is used for laminating the release paper / release film and the hot melt adhesive film; The first heating roller is used to heat the laminated release paper / release film and hot melt adhesive film; The first cooling roller is used to cool the hot melt adhesive film; The second laminating roller is used to laminate the hot melt adhesive film with release paper / release film to the woven layer; The second heating roller is used to heat the hot melt adhesive film with release paper / release film laminated to the woven layer; The second cooling roller is used to cool the hot melt adhesive film heated by the second heating roller; The sanding machine is used to rub the woven layer to form a sanding layer; The UV lamp is used to continuously irradiate the woven layer and the sanded layer; The nozzle is used for spraying the hydrophobic coating onto the woven layer and the sanded layer.

9. The method for preparing a composite mesh material according to claim 8, characterized in that: Along the conveying direction of the composite mesh material, the gap between adjacent UV lamps gradually decreases and the wavelength of the UV lamp light gradually becomes shorter.

10. A sports shoe, characterized in that: The composite mesh material comprises the composite mesh material according to any one of claims 1 to 5 or the composite mesh material prepared by the method for preparing the composite mesh material according to any one of claims 6 to 9.

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