Graphene antibacterial midsole fabric and preparation method and application thereof

Abstract

The present invention provides a graphene antibacterial midsole fabric and a preparation method and application thereof, and relates to the technical field of midsole fabrics. The graphene antibacterial midsole fabric of the present invention is composed of a cotton cloth layer and a fiber layer connected by acupuncture, and the fiber layer is composed of 75-85% graphene fibers and 15-25% low-melting point fibers interlaced. The present invention obtains a fiber layer by interlacing 75-85% graphene fibers and 15-25% low-melting point fibers, and then acupunctures and compounds it with a cotton cloth layer to obtain a wear-resistant, high-strength antibacterial midsole fabric, which has high safety and unlimited scope of use, and is superior to the prior art of adding plant fibers for antibacterial.

Description

Technical Field

[0001] The present invention relates to the technical field of midsole fabrics, and in particular to a graphene antibacterial midsole fabric and a preparation method and application thereof. Background Art

[0002] Midsole fabric is used to make shoe linings. The main component of traditional shoe linings is polyester fiber, which does not have antibacterial function. Most of the antibacterial midsole fabrics on the market currently achieve antibacterial function by adding plants. However, plant fibers will catch fire when encountering sparks during production, which poses a relatively large safety hazard. There is also a lot of waste during the production process. In addition, plant fibers themselves have certain requirements for the storage environment. After being made into midsole fabrics and then into shoes, the antibacterial effect is easily attenuated due to the limitations of the use environment. Summary of the invention

[0003] The present invention provides a graphene antibacterial midsole fabric and a preparation method and application thereof, so as to solve the defects of adding plant fiber for antibacterial in the prior art, such as potential safety hazards and limited use environment, and realize a graphene midsole fabric with good antibacterial effect at low cost.

[0004] In a first aspect, the present invention provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by a needle punching action, wherein the fiber layer is composed of 75-85% graphene fibers and 15-25% low-melting-point fibers interlaced.

[0005] In some embodiments of the present invention, the graphene fiber is obtained by processing 2-4% of graphene masterbatch and the remainder of polyester foam.

[0006] In some embodiments of the present invention, the aspect ratio of the graphene fiber is 150-200.

[0007] In some embodiments of the present invention, the low-melting point fiber is polyester low-melting point fiber with an aspect ratio of 150-200.

[0008] In some embodiments of the present invention, the cotton cloth layer is a dense cotton cloth layer with a density of 150 to 250 threads / cm.

[0009] In a second aspect, the present invention provides a method for preparing the above-mentioned graphene antibacterial midsole fabric.

[0010] The preparation method provided by the present invention comprises: preparing a cotton cloth layer and a fiber layer respectively, compounding the two layers by needle punching, and then performing hot pressing molding.

[0011] The preparation of the fiber layer includes: opening and mixing the graphene fiber and the low-melting point fiber for the first time, and then opening and mixing them for multiple times, combing them after opening, and laying them into a web after combing, wherein the number of the laid web layers is 5 to 7.

[0012] Specifically, the preparation of the graphene antibacterial midsole fabric includes: putting graphene fibers and low-melting-point fibers into a cotton mixing machine for the first opening and mixing, and then further mixing them through a large-bin cotton mixing machine, and then entering the first opening machine and the second opening machine respectively for full opening, and after opening, the feeding is controlled by the feeding roller, and then entering the carding machine for carding, and the carded fiber web is conveyed to the web laying machine through a conveying curtain for web laying, and the number of web laying layers is 5-7 layers, and then the fiber web is conveyed to the needle loom machine through a V-shaped feeding, and a layer of cotton cloth is pulled in at the position of the second needle loom machine and the third needle loom machine. The cotton cloth is compounded on the fiber web through the action of the needle loom machine, and the fiber web is reinforced under the action of the positive and negative punctures of the five needle loom machines, and finally the low-melting-point fibers mixed in the fiber web are melted by the ironing machine, and the molten low-melting-point fibers are attached to the graphene fiber cortex, and the graphene antibacterial midsole fabric is obtained after cooling.

[0013] In a preferred embodiment of the present invention, the carding machine parameters are: Chest cylinder speed: 46hz Chest cylinder working roller speed: 30hz Mid-speed: 25hz Main cylinder speed: 45hz Main cylinder working roller speed: 25hz Feeding speed: 7.3hz Doffer speed: 10.5hz Front chaos speed: 9hz After the chaos speed: 8.3hz; The conveying curtain parameters are: conveying curtain speed: 17hz, compensation curtain speed: 13.5hz; The parameters of the web laying machine are: speed 1 to speed 16 are all 1.0 Hz; The acupuncture machine parameters are: The first needle loom speed: 20.4hz The second needle loom speed: 30hz The third needle loom speed: 38hz The fourth needle loom speed: 38hz The fifth needle loom speed: 38hz.

[0014] In some embodiments of the present invention, the method for preparing the graphene fiber comprises: mixing graphene masterbatch with polyester foam, and then performing drum drying, spinning, and drawing to form graphene fiber.

[0015] In a third aspect, the present invention provides application of the above-mentioned graphene antibacterial midsole cloth in footwear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a graphene antibacterial midsole fabric, a preparation method and an application thereof. The fiber layer is obtained by interlacing 75-85% of graphene fibers and 15-25% of low-melting-point fibers and then needle-punched and compounded with a cotton cloth layer, thereby obtaining an antibacterial midsole fabric that is wear-resistant and has high strength. The antibacterial midsole fabric has high safety and unlimited scope of use, and is superior to the prior art of adding plant fibers for antibacterial purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a physical picture of the graphene antibacterial midsole fabric provided by the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0019] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0020] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific implementations", or "some specific implementations" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0021] If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the field or the product instructions are used. If no manufacturer is specified for the reagents or instruments used, they are all conventional products that can be purchased through regular channels.

[0022] The invention provides a graphene antibacterial midsole fabric, which comprises a cotton cloth layer and a fiber layer connected by a needle punching action, wherein the fiber layer is composed of 75-85% of graphene fibers and 15-25% of low-melting-point fibers in an interlaced manner.

[0023] It should be noted that, unless otherwise specified, the percentages in the present invention are all by mass.

[0024] The midsole fabric of the present invention has a two-layer structure, the upper layer is a cotton layer, which plays a role in wear resistance and increases tensile strength, tear strength, and reduces fabric elongation, and the bottom layer is a fiber layer, which is composed of a specific ratio of high-melting-point graphene fibers and low-melting-point fibers interlaced, and the cotton layer and the fiber layer are consolidated together under the action of high-speed acupuncture, and the upper and lower layers are heat-treated to form a midsole fabric with a certain hardness. Among them, the strength of graphene fibers is higher than that of plant fibers, and the midsole fabric made of graphene fibers will be higher in physical properties than that of plant fibers. The process of graphene fibers in the production process of the midsole fabric will be more stable, and the uniformity is easier to control. Moreover, the graphene midsole fabric has no special requirements for the use environment, and the antibacterial effect can be effectively maintained.

[0025] The low-melting point fiber of the present invention refers to a fiber whose cortex melts and produces a bonding effect when heated to a certain temperature (usually between 100°C and 150°C). This fiber has excellent thermal bonding properties, is easy to mix with other fibers, and has good elasticity. There are many types of low-melting point fibers, and the common ones include polyester low-melting point fibers, polyamide low-melting point fibers, polyester low-melting point fibers, etc.

[0026] Under the premise of not affecting the performance, the fiber in the present invention can use recycled fiber, saving resources and solving the environmental pollution problem to the greatest extent.

[0027] In some embodiments of the present invention, the graphene fiber is obtained by processing 2-4% of graphene masterbatch and the remainder of polyester foam material. The specific processing method can adopt the conventional processing method in the art.

[0028] As an optional embodiment, the aspect ratio of the graphene fiber is 150-200.

[0029] As an optional embodiment, the low-melting point fiber is polyester low-melting point fiber with an aspect ratio of 150-200.

[0030] The aspect ratio refers to the ratio of the length of a fiber to its diameter. The aspect ratio of a fiber is affected by many factors, including the production process of the fiber, the selection of raw materials, the stretch multiple, etc. In the production process, fibers with different aspect ratios can be prepared by adjusting these parameters. The aspect ratio of a fiber is an important physical parameter that affects the performance and application of the fiber. The present invention has found through experiments that by selecting graphene fibers and polyester low-melting-point fibers with the above aspect ratios, an antibacterial midsole fabric with better comprehensive performance can be obtained.

[0031] In a preferred embodiment of the present invention, the fiber layer is formed by interlacing 80% graphene fibers and 20% low-melting-point fibers, and the number of layers is 5-7, more preferably 6.

[0032] In some embodiments of the present invention, the cotton cloth layer is a dense cotton cloth layer with a density of 150 to 250 threads / cm.

[0033] In a second aspect, the present invention provides a method for preparing the above-mentioned graphene antibacterial midsole fabric.

[0034] The preparation method provided by the present invention comprises: preparing a cotton cloth layer and a fiber layer respectively, compounding the two layers by needle punching, and then performing hot pressing molding.

[0035] The preparation of the fiber layer includes: opening and mixing the graphene fiber and the low-melting point fiber for the first time, and then opening and mixing them for multiple times, combing them after opening, and laying them into a web after combing, wherein the number of the laid web layers is 5 to 7.

[0036] In a preferred embodiment of the present invention, the preparation of the graphene antibacterial midsole fabric includes: putting the graphene fiber and the low-melting-point fiber into a cotton mixing machine for the first opening and mixing, and then further mixing them through a large-bin cotton mixing machine, and then entering the first opening machine and the second opening machine respectively for full opening, and after opening, the feeding is controlled by the feeding roller, and then entering the carding machine for carding, and the carded fiber web is conveyed to the web laying machine through the conveying curtain for web laying, and the number of web laying layers is 5-7 layers, and then the fiber web is conveyed to the needle loom through the V-shaped feeding, and a layer of cotton cloth is pulled in at the position of the second needle loom and the third needle loom. The cotton cloth is compounded on the fiber web through the action of the needle loom, and the fiber web is reinforced under the action of the positive and negative puncture of the five needle looms. Finally, the low-melting-point fibers mixed in the fiber web are melted by the ironing machine, and the molten low-melting-point fibers are attached to the cortex of the graphene fibers. After cooling, the graphene antibacterial midsole fabric is obtained.

[0037] Furthermore, the carding machine parameters are: Chest cylinder speed: 46hz Chest cylinder working roller speed: 30hz Mid-speed: 25hz Main cylinder speed: 45hz Main cylinder working roller speed: 25hz Feeding speed: 7.3hz Doffer speed: 10.5hz Front chaos speed: 9hz After the chaos speed: 8.3hz; The conveying curtain parameters are: conveying curtain speed: 17hz, compensation curtain speed: 13.5hz; The parameters of the web laying machine are: speed 1 to speed 16 are all 1.0 Hz; The acupuncture machine parameters are: The first needle loom speed: 20.4hz The second needle loom speed: 30hz The third needle loom speed: 38hz The fourth needle loom speed: 38hz The fifth needle loom speed: 38hz.

[0038] In some embodiments of the present invention, the method for preparing the graphene fiber comprises: mixing graphene masterbatch with polyester foam, and then performing drum drying, spinning, and drawing to form graphene fiber.

[0039] In a third aspect, the present invention provides application of the above-mentioned graphene antibacterial midsole cloth in footwear.

[0040] In order to facilitate the understanding of the graphene antibacterial midsole fabric and the preparation method thereof provided by the present invention, some specific embodiments are used for illustration below.

[0041] In the following embodiments, the cotton cloth layer is a dense cotton cloth layer with a density of 200 strands / cm.

[0042] In the following embodiments, the aspect ratios of the graphene fiber and the polyester low-melting-point fiber are both 150-200.

[0043] In the following examples, the preparation method of graphene fiber is as follows: 3 kg of graphene masterbatch is added to 97 kg of polyester foam material, and the graphene fiber is formed by drum drying, spinning, and drawing.

[0044] Example 1

[0045] The present embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, and the fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers interlaced.

[0046] This embodiment also provides a method for preparing the above-mentioned graphene antibacterial midsole fabric, which is specifically as follows: The graphene fiber and polyester low-melting-point fiber are put into the cotton mixer for the first opening and mixing, and then further mixed in the large warehouse cotton mixer, and then enter the first opening machine and the second opening machine for full opening. After opening, the feeding is controlled by the feeding roller, and then enters the carding machine for carding. The carded fiber web is transported to the web laying machine through the conveyor curtain for web laying. The number of web laying layers is 6, and then the fiber web is transported to the needle loom through the V-shaped feeding. A layer of white encrypted cotton cloth is pulled in at the position of the second and third needle looms. The cotton cloth is compounded on the fiber web through the needle loom. Under the action of the positive and negative puncture of the five needle looms, the fiber web is reinforced, and finally the low-melting-point fiber evenly mixed in the fiber web is melted by the ironing machine. The molten low-melting-point fiber is attached to the graphene fiber cortex. After cooling, the fibers will bond together to form a midsole cloth with a certain hardness.

[0047] Among them, the carding machine parameters are: chest cylinder speed: 46hz, chest cylinder working roller speed: 30hz, middle doffer speed: 25hz, main cylinder speed: 45hz, main cylinder working roller speed: 25hz, feeding speed: 7.3hz, doffer speed: 10.5hz, front mess speed: 9hz, rear mess speed: 8.3hz; The conveying curtain parameters are: conveying curtain speed: 17hz, compensation curtain speed: 13.5hz; The parameters of the web laying machine are: speed 1 to speed 16 are all 1.0hz; The parameters of the needle loom machine are: the speed of the first needle loom machine is 20.4hz, the speed of the second needle loom machine is 30hz, the speed of the third needle loom machine is 38hz, the speed of the fourth needle loom machine is 38hz, and the speed of the fifth needle loom machine is 38hz; The speed of the ironing machine is 4.15 Hz and the temperature is 230°C.

[0048] The actual picture of the graphene antibacterial midsole fabric obtained in this embodiment is as follows: Figure 1 shown.

[0049] Example 2

[0050] This embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, wherein the fiber layer is composed of 85% graphene fiber and 15% polyester low-melting point fiber interlaced. The preparation method is the same as that of embodiment 1.

[0051] Example 3

[0052] This embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, wherein the fiber layer is composed of 75% graphene fiber and 25% polyester low-melting point fiber interlaced. The preparation method is the same as that of embodiment 1.

[0053] Example 4

[0054] The present embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, and the fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers interlaced.

[0055] The difference between its preparation method and Example 1 is that the carding machine parameters are: breast cylinder speed: 45 Hz, breast cylinder working roller speed: 280 Hz, middle doffer speed: 265 Hz, main cylinder speed: 40 Hz, main cylinder working roller speed: 25 Hz, feeding speed: 7 Hz, doffer speed: 10 Hz, front chaotic speed: 9 Hz, rear chaotic speed: 8 Hz.

[0056] Example 5

[0057] The present embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, and the fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers interlaced.

[0058] The difference between its preparation method and Example 1 is that the parameters of the web laying machine are: section speed 1 to section speed 4 are all 1.0 Hz, section speed 5 to section speed 8 are all 1.1 Hz, section speed 9 to section speed 12 are all 1.2 Hz, and section speed 13 to section speed 16 are all 1.0 Hz.

[0059] Example 6

[0060] The present embodiment provides a graphene antibacterial midsole fabric, which is composed of a cotton cloth layer and a fiber layer connected by needle punching, and the fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers interlaced.

[0061] The difference between its preparation method and Example 1 is that the parameters of the needling machine are: the speed of the first needling machine: 21 Hz, the speed of the second needling machine: 28 Hz, the speed of the third needling machine: 36 Hz, the speed of the fourth needling machine: 36 Hz, and the speed of the fifth needling machine: 36 Hz.

[0062] Performance Testing 1. Antibacterial properties Detection method: GB / T20944.3-2008 Evaluation of antibacterial properties of textiles Part 3: Oscillation method (the antibacterial properties of textiles are evaluated by contacting the textile sample with a bacterial suspension under oscillating conditions for a certain period of time and then measuring the change in the number of bacteria).

[0063] Sterilization method: high pressure steam sterilization Working solution: 0.03 mol / L phosphate buffer Contact time: 18 hours Test sample: 0.75g Test strains: Staphylococcus aureus ATCC 6538 Escherichia coli (8099) Candida albicans ATCC 10231 The test results of the samples in Example 1 are shown in Table 1.

[0064] Table 1

[0065] The evaluation of antibacterial effect in GB / T20944.3-2008 is: if the antibacterial rate against Staphylococcus aureus and Escherichia coli is ≥70%, or the antibacterial rate against Candida albicans is ≥60%, the sample has antibacterial effect. It can be seen that the graphene midsole fabric of Example 1 of the present invention has excellent antibacterial effect.

[0066] The samples of the remaining embodiments were subjected to the same test, and the results all showed that the obtained graphene midsole fabric had an antibacterial effect.

[0067] 2. Tear strength, breaking strength, elongation at break 1. Test method for tear strength 1. Normative references: GB / T 3917.2, Tear properties of fabrics, Determination of tear strength of trouser-shaped specimens (single seam).

[0068] 2. Test equipment: computer tensile testing machine (speed 100mm / min~500mm / min adjustable).

[0069] 3. Sample specifications: 3 pieces in the warp (longitudinal) direction, 3 pieces in the weft (transverse) direction, specifications: length 150mm × width 75mm, slit 75mm.

[0070] 4. Test steps: Start the tensile testing machine, set the speed and clamp distance: the speed is 300mm / min, the clamp distance is 75mm; clamp the two ends of the sample on the upper and lower clamps of the tensile testing machine respectively, the clamped samples should be on the same plane, keep vertical, and cannot be twisted, the part of the sample exposed from the upper clamp should be consistent with the part exposed from the lower clamp; start the tensile testing machine to start the test; the tensile testing machine pulls the sample until it breaks, and records the force value of the sample throughout the process.

[0071] 5. Test results: The test can be ended when the tensile machine rises 75mm (if no obvious peak-to-valley values ​​appear, the test can continue until it is completely torn). In the entire test running graph, the first peak value is not calculated, and the average value of the 5 highest peak values ​​is recorded as the test result, in Newton (N), and the value is accurate to an integer; the average value of the 3 samples is taken as the final result, and the value is accurate to an integer.

[0072] (II) Test methods for breaking strength and breaking elongation 1. Normative references: GB / T 3923.1, Determination of breaking strength and elongation at break of fabrics, Strip method.

[0073] 2. Test equipment: computer tensile testing machine (speed 100mm / min~500mm / min adjustable).

[0074] 3. Sample specifications: 3 pieces in the warp (longitudinal) direction, 3 pieces in the weft (transverse) direction, specifications: length 150mm × width 25.4mm.

[0075] 4. Test steps: Start the tensile testing machine, set the speed and clamp distance: the speed is 300mm / min, the clamp distance is 100mm; clamp the two ends of the sample on the upper and lower clamps of the tensile testing machine respectively, the clamped samples should be on the same plane, keep vertical, and cannot be twisted. The part of the sample exposed from the upper clamp should be consistent with the part exposed from the lower clamp, start the tensile testing machine to start the test; the tensile testing machine pulls the sample to break, and records the maximum force value of the tensile testing machine and the distance between the two markings.

[0076] 5. Test results: 5.1 Breaking strength (N / 2.54cm) = maximum force at break (N). The average value of three specimens is taken as the final result, and the value is accurate to the integer.

[0077] 5.2 Calculation formula for elongation at break: Elongation at break (%) = (total distance of the marks at break - original distance of the marks) / original distance of the marks * 100%. The average value of 3 specimens is taken as the final result, and the value is accurate to an integer.

[0078] The test results are shown in Table 2.

[0079] Table 2

[0080] From the above results, it can be seen that the comprehensive performance of the graphene antibacterial midsole fabrics of Examples 1-3 of the present invention is better, and the other examples are second.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A graphene antibacterial midsole fabric, characterized in that: The cotton cloth layer and the fiber layer are connected by needle punching, and the fiber layer is composed of 75-85% graphene fiber and 15-25% low melting point fiber.

2. The graphene antibacterial midsole fabric according to claim 1, characterized in that: The graphene fiber is obtained by processing 2-4% of graphene masterbatch and the remainder of polyester foam material.

3. The graphene antibacterial midsole fabric according to claim 2, characterized in that: The aspect ratio of the graphene fiber is 150-200.

4. The graphene antibacterial midsole fabric according to claim 1, characterized in that: The low melting point fiber is polyester low melting point fiber with an aspect ratio of 150-200.

5. The graphene antibacterial midsole fabric according to claim 1, characterized in that: The cotton cloth layer is a dense cotton cloth layer with a density of 150 to 250 threads per centimeter.

6. Use of the graphene antibacterial midsole fabric according to any one of claims 1 to 5 in footwear.

7. A method for preparing a graphene antibacterial midsole fabric, characterized in that: include: After the cotton cloth layer and the fiber layer are prepared separately, the two layers are compounded by needle punching and then hot-pressed; The preparation of the fiber layer includes: opening and mixing the graphene fiber and the low-melting point fiber for the first time, and then opening and mixing them for multiple times, combing them after opening, and laying them into a web after combing, wherein the number of the laid web layers is 5 to 7.

8. The method for preparing the graphene antibacterial midsole fabric according to claim 7, characterized in that: The preparation of the graphene antibacterial midsole fabric comprises: putting the graphene fiber and the low-melting-point fiber into a cotton mixing machine for the first opening and mixing, then further mixing them through a large-bin cotton mixing machine, and then respectively entering a first opening machine and a second opening machine for full opening, after opening, controlling the feeding through a feeding roller, and then entering a carding machine for carding, the carded fiber web is conveyed to a web laying machine through a conveying curtain for web laying, the web laying layer number is 5-7 layers, and then the fiber web is conveyed to a needle loom through a V-shaped feeding, a layer of cotton cloth is pulled in at the position of the second needle loom and the third needle loom, the cotton cloth is compounded on the fiber web through the action of the needle loom, the fiber web is reinforced under the action of the positive and negative punctures of five needle looms, and finally the low-melting-point fiber mixed in the fiber web is melted by a hot ironing machine, the molten low-melting-point fiber is attached to the graphene fiber cortex, and the graphene antibacterial midsole fabric is obtained after cooling.

9. The method for preparing the graphene antibacterial midsole fabric according to claim 8, characterized in that: The parameters of the carding machine are: Chest cylinder speed: 46hz Chest cylinder working roller speed: 30hz Mid-speed: 25hz Main cylinder speed: 45hz Main cylinder working roller speed: 25hz Feeding speed: 7.3hz Doffer speed: 10.5hz Front chaos speed: 9hz After the chaos speed: 8.3hz; The parameters of the conveying curtain are: conveying curtain speed: 17hz, compensation curtain speed: 13.5hz; The parameters of the web laying machine are: speed 1 to speed 16 are all 1.0 Hz; The parameters of the acupuncture machine are: The first needle loom speed: 20.4hz The second needle loom speed: 30hz The third needle loom speed: 38hz The fourth needle loom speed: 38hz The fifth needle loom speed: 38hz.

10. The method for preparing the graphene antibacterial midsole fabric according to any one of claims 7 to 9, characterized in that: The preparation method of the graphene fiber comprises: mixing graphene masterbatch with polyester foam material, and then performing drum drying, spinning, and drawing to form the graphene fiber.

Images