Graphene antibacterial insole fabric and its preparation method and application

Abstract

The present invention provides a graphene antibacterial insole cloth, a preparation method thereof and an application thereof, relating to the technical field of insole cloth. The graphene antibacterial insole cloth of the present invention is connected by needling between a cotton cloth layer and a fiber layer, and the fiber layer is composed of 75-85% graphene fibers and 15-25% low-melting-point fibers which are staggered. By laying the 75-85% graphene fibers and 15-25% low-melting-point fibers in a staggered manner to form a fiber layer and then needling and compounding it with the cotton cloth layer, the present invention obtains an antibacterial insole cloth with wear resistance and high strength, which has high safety and an unrestricted use range, and is superior to the prior art in adding plant fiber antibacterial.

Description

Technical Field

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

[0002] The insole fabric is a material used for shoe lasting lining. The main component of the traditional lasting lining is polyester fiber, which does not have antibacterial function. Most of the antibacterial insole fabrics on the market currently achieve antibacterial function by adding plants. However, plant fibers will catch fire when encountering sparks during production, posing relatively large potential safety hazards, and there is also a large waste during the production process. Moreover, plant fibers themselves have certain requirements for the storage environment. After being made into insole fabrics and then into shoes, due to the limitation of the use environment, the antibacterial effect is prone to attenuation. Summary of the Invention

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

[0004] In a first aspect, the present invention provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 75-85% graphene fibers and 15-25% low-melting-point fibers in an alternating manner.

[0005] In some embodiments of the present invention, the graphene fibers are obtained by processing 2-4% of graphene masterbatch and the balance of polyester foam materials.

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

[0007] In some embodiments of the present invention, the low-melting-point fibers are polyester low-melting-point fibers, and the aspect ratio is 150-200.

[0008] In some embodiments of the present invention, the cotton cloth layer is a densified cotton cloth layer, and the density is 150-250 roots / cm.

[0009] In a second aspect, the present invention provides a preparation method of the above graphene antibacterial insole fabric.

[0010] The preparation method provided by the present invention includes: after separately preparing the cotton cloth layer and the fiber layer, the two layers are compounded by needling, and then hot pressing is performed to form.

[0011] Among them, the preparation of the fiber layer includes: first loosening and mixing the graphene fibers and the low-melting-point fibers, then performing multiple loosening operations, carding after loosening, and laying the web after carding. The number of web laying layers is 5-7 layers.

[0012] Specifically, the preparation of the graphene antibacterial insole fabric includes: putting graphene fibers and low-melting-point fibers into a cotton blender for the first loosening and mixing, then further mixing through a large-bin cotton mixer, and then separately entering a first opener and a second opener for sufficient loosening. After loosening, feeding is controlled by a feeding roller, and then it enters a carding machine for carding. The carded web is transported to a lapping machine through a conveying curtain for lapping, with the number of lapping layers being 5 - 7 layers. Then, the web is transported to a needling machine through a V-shaped feeder, and a layer of cotton cloth is introduced at the positions of the second needling machine and the third needling machine. Through the action of the needling machine, the cotton cloth is laminated on the web. Under the action of the front and back needling of the five needling machines, the web is strengthened. Finally, the low-melting-point fibers mixed in the web are melted using a calendering machine, and the melted low-melting-point fibers adhere to the graphene fiber cortex, and the graphene antibacterial insole fabric is obtained after cooling.

[0013] In a preferred embodiment of the present invention, the parameters of the carding machine are as follows:

[0014] Chest cylinder speed: 46 hz

[0015] Chest cylinder working roll speed: 30 hz

[0016] Intermediate doffer speed: 25 hz

[0017] Main cylinder speed: 45 hz

[0018] Main cylinder working roll speed: 25 hz

[0019] Feeding speed: 7.3 hz

[0020] Doffer speed: 10.5 hz

[0021] Front random speed: 9 hz

[0022] Rear random speed: 8.3 hz;

[0023] The parameters of the conveying curtain are: conveying curtain speed: 17 hz, compensation curtain speed: 13.5 hz;

[0024] The parameters of the lapping machine are: section speed 1 to section speed 16 are all 1.0 hz;

[0025] The parameters of the needling machine are:

[0026] Speed of the first needling machine: 20.4 hz

[0027] Speed of the second needling machine: 30 hz

[0028] Speed of the third needling machine: 38 hz

[0029] Speed of the fourth needling machine: 38 hz

[0030] Rotation speed of the fifth needle loom: 38 hz.

[0031] In some embodiments of the present invention, the method for preparing the graphene fiber includes: mixing the graphene masterbatch with polyester foam, followed by drum drying, spinning, and drawing to form the graphene fiber.

[0032] In a third aspect, the present invention provides the application of the above-mentioned graphene antibacterial insole cloth in shoe products.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention provides a graphene antibacterial insole cloth, its preparation method and application. By interlacing and laying 75 - 85% graphene fiber and 15 - 25% low-melting-point fiber to obtain a fiber layer, and then needle-punching and compounding it with a cotton cloth layer, an antibacterial insole cloth with wear resistance and high strength is obtained, which has high safety and an unrestricted scope of use, and is superior to adding plant fiber antibacterial in the prior art. Description of the Drawings

[0035] Figure 1 is a physical diagram of the graphene antibacterial insole cloth provided by the present invention. Detailed Embodiments

[0036] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] In the ranges disclosed herein, the endpoints and any value are not limited to the exact range or value. These ranges or values should be understood to include values close to these ranges or values. For numerical ranges, between the endpoint values of each range, between the endpoint values and individual point values of each range, and between individual point values, they can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed herein.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] It should be noted that, unless otherwise specified, the percentages in the present invention are all by mass.

[0042] 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 increasing tensile strength, tear strength, and reducing 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] As an optional embodiment, the aspect ratio of the graphene fiber is 150-200.

[0047] As an optional embodiment, the low-melting point fiber is polyester low-melting point fiber with an aspect ratio of 150-200.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In a second aspect, the present invention provides a method for preparing the above-mentioned graphene antibacterial midsole fabric.

[0052] 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.

[0053] 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.

[0054] In a preferred embodiment of the present invention, the preparation of the graphene antibacterial insole fabric includes: putting graphene fibers and low-melting-point fibers into a cotton blender for the first loosening and mixing, then further mixing through a large bin cotton mixer, and then separately entering a first opener and a second opener for sufficient loosening. After loosening, the feeding is controlled by a feeding roller, and then it enters a carding machine for carding. The carded web is transported to a lapping machine through a conveyor curtain for lapping. The number of lapping layers is 5 - 7 layers. Then, the web is transported to a needling machine through a V-shaped feeder. A layer of cotton cloth is introduced at the positions of the second needling machine and the third needling machine. Through the action of the needling machine, the cotton cloth is laminated on the web. Under the action of the front and back needling of the five needling machines, the web is strengthened. Finally, the low-melting-point fibers mixed in the web are melted by a calendering machine, and the melted low-melting-point fibers adhere to the graphene fiber cortex, and the graphene antibacterial insole fabric is obtained after cooling.

[0055] Further, the parameters of the carding machine are as follows:

[0056] Chest cylinder speed: 46 hz

[0057] Chest cylinder working roller speed: 30 hz

[0058] Intermediate doffer speed: 25 hz

[0059] Main cylinder speed: 45 hz

[0060] Main cylinder working roller speed: 25 hz

[0061] Feeding speed: 7.3 hz

[0062] Doffer speed: 10.5 hz

[0063] Front random speed: 9 hz

[0064] Rear random speed: 8.3 hz;

[0065] The parameters of the conveyor curtain are: conveyor curtain speed: 17 hz, compensation curtain speed: 13.5 hz;

[0066] The parameters of the lapping machine are: section speed 1 to section speed 16 are all 1.0 hz;

[0067] The parameters of the needling machine are as follows:

[0068] Speed of the first needling machine: 20.4 hz

[0069] Speed of the second needling machine: 30 hz

[0070] Speed of the third needling machine: 38 hz

[0071] Speed of the fourth needling machine: 38 hz

[0072] Rotation speed of the fifth needle punching machine: 38 hz.

[0073] In some embodiments of the present invention, the method for preparing the graphene fiber comprises: mixing the graphene masterbatch with the polyester foam, followed by drum drying, spinning, and drawing to form the graphene fiber.

[0074] In a third aspect, the present invention provides the application of the above-mentioned graphene antibacterial insole cloth in shoe products.

[0075] For the convenience of understanding the graphene antibacterial insole cloth and its preparation method provided by the present invention, the following will be described through some specific embodiments.

[0076] In the following embodiments, the cotton cloth layer is a densified cotton cloth layer with a density of 200 threads / cm.

[0077] In the following embodiments, the aspect ratios of the graphene fiber and the polyester low melting point fiber are both 150 - 200.

[0078] In the following embodiments, the method for preparing the graphene fiber is: adding 3 kg of graphene masterbatch to 97 kg of polyester foam, followed by drum drying, spinning, and drawing to form the graphene fiber.

[0079] Example 1

[0080] This example provides a graphene antibacterial insole cloth, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 80% graphene fiber and 20% polyester low melting point fiber in an alternating manner.

[0081] This example also provides the preparation method of the above-mentioned graphene antibacterial insole cloth, which is specifically as follows:

[0082] Put the graphene fiber and the polyester low melting point fiber into a cotton mixing machine for the first loosening and mixing, then further mix through a large bin cotton mixer, and then separately enter a first loosening machine and a second loosening machine for sufficient loosening. After loosening, control the feeding through a feeding roller, and then enter a carding machine for carding. The carded web is transported to a lapping machine through a conveying curtain for lapping. The number of lapping layers is 6 layers. Then, the web is transported to a needle punching machine through a V-shaped feeder, and a layer of white densified cotton cloth is introduced at the positions of the second and third needle punching machines. Through the action of the needle punching machine, the cotton cloth is laminated on the web. Under the action of the front and back punching of five needle punching machines, the web is reinforced. Finally, use a calendering machine to melt the low melting point fibers evenly mixed in the web. The molten low melting point fibers adhere to the cortex of the graphene fiber, and after cooling, the fibers will bond together to form an insole cloth with a certain hardness.

[0083] Among them, the carding machine parameters are: breast cylinder speed: 46 hz, breast cylinder working roll speed: 30 hz, middle doffer speed: 25 hz, main cylinder speed: 45 hz, main cylinder working roll speed: 25 hz, feeding speed: 7.3 hz, doffer speed: 10.5 hz, front random speed: 9 hz, rear random speed: 8.3 hz;

[0084] The conveying curtain parameters are: conveying curtain speed: 17 hz, compensation curtain speed: 13.5 hz;

[0085] The cross-laying machine parameters are: section speed 1 to section speed 16 are all 1.0 hz;

[0086] The needling machine parameters are: the speed of the first needling machine: 20.4 hz, the speed of the second needling machine: 30 hz, the speed of the third needling machine: 38 hz, the speed of the fourth needling machine: 38 hz, the speed of the fifth needling machine: 38 hz;

[0087] The calendering machine speed is 4.15 hz and the temperature is 230 °C.

[0088] The physical diagram of the graphene antibacterial insole fabric obtained in this embodiment is as Figure 1 shown.

[0089] Example 2

[0090] This embodiment provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 85% graphene fiber and 15% polyester low-melting-point fiber in an alternating manner. Its preparation method is the same as that of Example 1.

[0091] Example 3

[0092] This embodiment provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 75% graphene fiber and 25% polyester low-melting-point fiber in an alternating manner. Its preparation method is the same as that of Example 1.

[0093] Example 4

[0094] This embodiment provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 80% graphene fiber and 20% polyester low-melting-point fiber in an alternating manner.

[0095] The difference in its preparation method from that of Example 1 lies in that the carding machine parameters are: breast cylinder speed: 45 hz, breast cylinder working roll speed: 280 hz, middle doffer speed: 265 hz, main cylinder speed: 40 hz, main cylinder working roll speed: 25 hz, feeding speed: 7 hz, doffer speed: 10 hz, front random speed: 9 hz, rear random speed: 8 hz.

[0096] Example 5

[0097] This embodiment provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers in an interlaced manner.

[0098] The difference in its preparation method from that of Example 1 lies in that the parameters of the lapping machine are as follows: the speed of Section 1 to Section 4 is 1.0 hz, the speed of Section 5 to Section 8 is 1.1 hz, the speed of Section 9 to Section 12 is 1.2 hz, and the speed of Section 13 to Section 16 is 1.0 hz.

[0099] Example 6

[0100] This embodiment provides a graphene antibacterial insole fabric, which is connected by needling between a cotton cloth layer and a fiber layer. The fiber layer is composed of 80% graphene fibers and 20% polyester low-melting-point fibers in an interlaced manner.

[0101] The difference in its preparation method from that of Example 1 lies in that the parameters of the needling machine are as follows: the rotation speed of the first needling machine: 21 hz, the rotation speed of the second needling machine: 28 hz, the rotation speed of the third needling machine: 36 hz, the rotation speed of the fourth needling machine: 36 hz, and the rotation speed of the fifth needling machine: 36 hz.

[0102] Performance Test

[0103] 1. Antibacterial Performance

[0104] Detection Method:

[0105] GB / T20944.3-2008 Evaluation of antibacterial properties of textiles - Part 3: Oscillation method (by contacting the textile sample with the bacterial suspension under oscillation conditions for a certain time, and then measuring the change in the number of bacteria to evaluate the antibacterial properties of the textiles).

[0106] Sterilization Method: High-pressure steam sterilization

[0107] Working Solution: 0.03 mol / L phosphate buffer solution

[0108] Contact Time: 18 hours

[0109] Test Specimen: 0.75 g

[0110] Test Bacterial Strains:

[0111] Staphylococcus aureus ATCC 6538

[0112] Escherichia coli (8099)

[0113] Candida albicans ATCC 10231

[0114] The test results of the sample of Example 1 are shown in Table 1.

[0115] Table 1

[0116]

[0117] The evaluation of the antibacterial effect in GB / T 20944.3-2008 is as follows: the antibacterial rate against Staphylococcus aureus and Escherichia coli is ≥70%, or the antibacterial rate against Candida albicans is ≥60%, and the sample has antibacterial effect. Thus, it can be seen that the graphene midsole fabric of Example 1 of the present invention has excellent antibacterial effect.

[0118] The samples of the remaining examples were subjected to the same test, and the results all showed that the obtained graphene midsole fabric had antibacterial effect.

[0119] 2. Tear strength, breaking strength, elongation at break

[0120] (I) Test method for tear strength

[0121] 1. Normative reference document: GB / T 3917.2, Tear properties of fabrics - Determination of tear force of trousers-shaped test specimens (single tear).

[0122] 2. Test equipment: Computerized tensile testing machine (speed adjustable from 100 mm / min to 500 mm / min).

[0123] 3. Specimen specifications: 3 pieces in the warp (longitudinal) direction and 3 pieces in the weft (transverse) direction, specifications: length 150 mm × width 75 mm, slit 75 mm.

[0124] 4. Test steps: Start the tensile testing machine, set the speed and grip distance: speed is 300 mm / min, grip distance is 75 mm; clamp the two ends of the specimen on the upper and lower clamps of the tensile machine respectively, and the clamped specimen should be on the same plane, keep it vertical, and cannot be distorted, and the parts of the specimen exposed from the upper clamp and the lower clamp should be the same; start the tensile testing machine to start the test; the tensile testing machine pulls the specimen until it breaks, and record the force value of the whole process of the specimen.

[0125] 5. Test results: The test can be ended when the tensile machine runs up 75 mm (if there are no obvious peak and valley values, it can continue to run until it is completely torn). In the whole test running graph, the first peak value is not calculated, and record the average value of the 5 highest peak values as the test result, with the unit of Newton (N), and the value is accurate to an integer; take the average value of 3 specimens as the final result, and the value is accurate to an integer.

[0126] (II) Test methods for breaking strength and elongation at break

[0127] 1. Normative reference document: GB / T 3923.1, Determination of breaking strength and elongation at break of fabrics - Strip method.

[0128] 2. Test equipment: Computerized tensile testing machine (speed adjustable from 100 mm / min to 500 mm / min).

[0129] 3. Specimen specifications: 3 pieces longitudinally and 3 pieces transversely, specifications: length 150 mm × width 25.4 mm.

[0130] 4. Test procedure: Start the tensile testing machine, set the speed and gauge length: speed is 300 mm / min, gauge length is 100 mm; clamp both ends of the specimen on the upper and lower fixtures of the tensile testing machine, and the clamped specimen should be on the same plane, keep it vertical, without distortion, and the parts of the specimen protruding from the upper fixture and the lower fixture should be the same. Start the tensile testing machine to start the test; the tensile testing machine pulls the specimen until it breaks, and record the maximum force value of the tensile testing machine and the distance between the two gauge lines.

[0131] 5. Test results:

[0132] 5.1 Tensile strength (N / 2.54 cm) = maximum force value at break (N), take the average value of 3 specimens as the final result, and the value is accurate to an integer.

[0133] 5.2 Calculation formula for elongation at break:

[0134] Elongation at break (%) = (total distance between gauges at break - original gauge distance) / original gauge distance * 100%, take the average value of 3 specimens as the final result, and the value is accurate to an integer.

[0135] The test results are shown in Table 2.

[0136] Table 2

[0137]

[0138] From the above results, it can be seen that the comprehensive performance of the graphene antibacterial insole fabric in Examples 1 - 3 of the present invention is better, and the other examples are inferior.

[0139] 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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, wherein the fiber layer is composed of 75-85% graphene fiber and 15-25% low melting point fiber; the aspect ratio of the graphene fiber is 150-200; The low melting point fiber is polyester low melting point fiber with an aspect ratio of 150 to 200; The preparation method of the graphene antibacterial midsole fabric comprises: putting graphene fiber and low-melting-point fiber into a cotton mixing machine for the first opening and mixing, then further mixing 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 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 puncture of five needle looms, and finally the low-melting-point fiber mixed in the fiber web is melted by a hot ironing machine, the melted low-melting-point fiber is attached to the graphene fiber cortex, and the graphene antibacterial midsole fabric is obtained after cooling; 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 clutter 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.

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 1, characterized in that: The cotton cloth layer is a dense cotton cloth layer with a density of 150 to 250 threads per centimeter.

4. Use of the graphene antibacterial midsole fabric according to any one of claims 1 to 3 in footwear.

5. A method for preparing a graphene antibacterial midsole fabric, characterized in that: include: The graphene fiber and the low-melting-point fiber are put into the cotton mixing machine for the first opening and mixing, and then further mixed in the large-bin cotton mixing machine, and then respectively 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 conveying curtain for web laying. The number of web laying layers is 5-7. Then the fiber web is transported to the needle loom through the V-shaped feeding. A layer of 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 action of the needle loom. Under the action of the positive and negative punctures of the five needle looms, the fiber web is reinforced. Finally, the low-melting-point fiber mixed in the fiber web is melted by the ironing machine. The molten low-melting-point fiber is attached to the cortex of the graphene fiber. After cooling, the graphene antibacterial midsole fabric is obtained; 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 clutter 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.

6. The method for preparing the graphene antibacterial midsole fabric according to claim 5, 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.

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