Artemisia argyi insole non-woven fabric with antibacterial function and preparation method and application thereof

Abstract

The invention provides wormwood insole non-woven fabric with an antibacterial function and a preparation method and application thereof, and relates to the technical field of insole fabric. The wormwood insole non-woven fabric is formed by compounding a fiber layer and a stitch-bonded stitch-bonded fabric layer through needling, and the fiber layer is formed by interweaving 5-10 wt% of wormwood, 5-8 wt% of low-melting-point fibers and the balance polyester fibers. The preparation method comprises the following steps: respectively preparing the fiber layer and the stitch-bonded stitch-bonded fabric layer, compounding the two layers through needling, and then carrying out hot press molding. According to the antibacterial insole non-woven fabric, 5-10 wt% of wormwood, 5-8 wt% of low-melting-point fibers and the balance polyester fibers are interwoven to obtain the fiber layer, then the fiber layer and the stitch-bonded stitch-bonded fabric layer are subjected to needling compounding, and therefore the antibacterial insole non-woven fabric which is good in moisture volatilization rate and air permeability, resistant to abrasion and high in strength is obtained, the preparation method is simple, the cost is low on the premise that the comprehensive performance is guaranteed, and large-scale production and application expansion are facilitated.

Description

Technical Field

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

[0002] The midsole non-woven fabric is used to make shoe pull linings. The main component of traditional shoe pull linings is polyester fiber, which does not have antibacterial function.

[0003] In order to achieve the antibacterial function, some midsole non-woven fabrics add hemp fiber, but the price of hemp fiber is relatively high, and other chemical raw materials need to be added during the production of hemp fiber, and then it needs to be spun into fibers. The composition and production process are more complicated than natural plant fibers. Compared with hemp fiber, natural plant fibers degrade faster. Therefore, the prior art uses the addition of wormwood for antibacterial purposes.

[0004] CN220192334U discloses a high-strength wormwood midsole, which is formed by pressing wormwood slurry, and a nylon mesh in the shape of a sole of the foot is arranged in the midsole, a steel hook is fixed on the nylon mesh, the wormwood wraps the nylon mesh to form an integrated structure, the end of the head of the steel hook has a fixed through hole, the ends of the two forks of the steel hook have fixed through holes, and the nylon mesh has at least three bosses corresponding to the fixed through holes on the head and fork of the steel hook, and the three bosses are respectively inserted into the three fixed through holes. The high strength of the wormwood midsole is inseparable from the role of the nylon mesh and the steel hook, but the above structure is not conducive to making shoe linings. Summary of the invention

[0005] The present invention provides an wormwood midsole non-woven fabric with antibacterial function and a preparation method and application thereof, so as to solve the defect that the prior art cannot take into account antibacterial, high strength and easy processing at the same time, and realize the wormwood midsole non-woven fabric with antibacterial function for making shoe lining at low cost.

[0006] In a first aspect, the present invention provides an antibacterial wormwood midsole non-woven fabric, which is formed by a fiber layer and a stitched Lixin cloth layer being compounded by needle punching, wherein the fiber layer is interwoven with 5-10wt% wormwood, 5-8wt% low-melting point fiber and the remainder of polyester fiber.

[0007] In some embodiments of the present invention, the polyester fiber consists of polyester fibers with an aspect ratio of 300-350 and polyester fibers with an aspect ratio of 150-200.

[0008] In some embodiments of the present invention, the polyester fibers with an aspect ratio of 300-350 account for 60-80% of the total mass of the polyester fibers.

[0009] In some embodiments of the present invention, the polyester fibers with an aspect ratio of 300-350 account for 65-75% of the total mass of the polyester fibers.

[0010] In some embodiments of the present invention, the fiber layer is composed of 7wt% of mugwort, 6wt% of low-melting point fiber and 87wt% of polyester fiber interwoven together.

[0011] In some embodiments of the present invention, the polyester fiber is recyclable recycled polyester fiber.

[0012] In some embodiments of the present invention, the stitched Lixin fabric layer is stitched from recyclable regenerated fibers and 75D stretched textured yarns and has a tic-tac-toe structure.

[0013] In a second aspect, the present invention provides a method for preparing the above-mentioned wormwood midsole non-woven fabric with antibacterial function.

[0014] The preparation method provided by the present invention comprises: preparing a fiber layer and a stitched Lixin cloth layer respectively, compounding the two layers by needle punching, and then performing hot pressing molding.

[0015] Specifically, the preparation of the fiber layer includes: opening and mixing the polyester fiber, wormwood and low-melting point fiber for the first time, then opening and mixing for multiple times, combing after opening, and laying the fiber layer after combing, wherein the number of laying layers is 5 to 7.

[0016] Furthermore, the preparation method of the wormwood midsole non-woven fabric comprises: The polyester fiber, mugwort and low-melting-point fiber are put into a cotton mixing machine for the first loosening and mixing, and then further mixed in a large bin cotton mixing machine, and then enter the first loosening machine and the second loosening machine respectively for full loosening. 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 a conveyor curtain for web laying, and then transported to the needle loom machine through a V-shaped feed, and the sewn Lixin cloth is pulled into the position of the second and third needle loom machines. The sewn Lixin 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 punctures of the five needle looms; the low-melting-point fibers mixed in the fiber web are melted by a hot ironing machine, and the molten low-melting-point fibers are attached to the epidermis of other fibers to obtain the mugwort midsole non-woven fabric.

[0017] In a third aspect, the present invention provides the use of the above-mentioned wormwood midsole non-woven fabric with antibacterial function in footwear.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an antibacterial midsole non-woven fabric with wormwood function, a preparation method and application thereof, wherein 5-10wt% wormwood, 5-8wt% low-melting point fiber and the remainder of polyester fiber are interwoven to obtain a fiber layer, which is then needle-punched and compounded with a stitched Lixin cloth layer, thereby obtaining an antibacterial midsole non-woven fabric with good moisture volatility and air permeability, wear resistance and high strength. The preparation method is simple, and the cost is low while ensuring comprehensive performance, which is conducive to large-scale production and expanded application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a physical picture of the mugwort midsole non-woven fabric provided by the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The present invention provides an wormwood midsole non-woven fabric with antibacterial function, which is formed by compounding a fiber layer and a stitched Lixin cloth layer through needle punching, wherein the fiber layer is interwoven with 5-10wt% wormwood, 5-8wt% low-melting point fiber and the remainder of polyester fiber.

[0025] The midsole nonwoven fabric of the present invention is added with wormwood having antibacterial effect, and wormwood is used to replace hemp fiber, thereby reducing production cost. The wormwood itself contains volatile aromatic oil, and after being made into shoes, it can also produce a peculiar fragrance, which can repel mosquitoes, flies, insects and ants, and purify the air. The present invention also compounds a layer of stitched Lixin cloth on one side of the fiber layer, which helps to reduce the elongation of the midsole nonwoven fabric, and obtains a midsole nonwoven fabric with good moisture volatility and air permeability, wear resistance and high strength.

[0026] The wormwood described in the present invention is dry wormwood with a water content of 7% to 10%. In some embodiments of the present invention, the preparation of the wormwood is as follows: the first batch of large-leaf wormwood is picked around the Dragon Boat Festival, and then stored in different warehouses. Specifically, the wormwood is fermented in an open-air warehouse to evaporate moisture, a semi-indoor warehouse to extract volatile oil, and a full-indoor warehouse to ferment the wormwood to enhance the efficacy. Among them, the storage time in the semi-indoor warehouse should not be too long, and this step can also be omitted. After evaporating the moisture, it directly enters the full-indoor warehouse for fermentation. The fermentation temperature is controlled at 20 to 40°C and the humidity is controlled at 40% to 70%.

[0027] The low-melting point fiber 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, the most common of which include polyester low-melting point fibers, polyamide low-melting point fibers, polyester low-melting point fibers, etc.

[0028] As an optional embodiment, the polyester fiber consists of polyester fibers with a length-to-diameter ratio of 300-350 and polyester fibers with a length-to-diameter ratio of 150-200.

[0029] The aspect ratio refers to the ratio of the length of a fiber to its diameter. The aspect ratio of polyester fiber is affected by many factors, including the fiber production process, raw material selection, stretch multiple, etc. During the production process, polyester fibers with different aspect ratios can be prepared by adjusting these parameters.

[0030] The aspect ratio of polyester fiber is an important physical parameter, which affects the performance and application of the fiber. In the midsole non-woven fabric, the polyester fiber with a larger aspect ratio can improve the strength and wear resistance of the non-woven fabric, and the polyester fiber with a smaller aspect ratio can improve the softness and air permeability of the non-woven fabric. The present invention has found through experiments that the midsole non-woven fabric with better comprehensive performance can be obtained by selecting two types of polyester fibers with an aspect ratio of 300-350 and an aspect ratio of 150-200.

[0031] Furthermore, the polyester fibers with an aspect ratio of 300-350 account for 60-80% of the total mass of the polyester fibers.

[0032] Further preferably, the polyester fibers with an aspect ratio of 300-350 account for 65-75% of the total mass of the polyester fibers.

[0033] In a preferred embodiment of the present invention, the fiber layer is composed of 7wt% of mugwort, 6wt% of low-melting point fiber and 87wt% of polyester fiber interwoven together.

[0034] In order to further save energy consumption, the polyester fiber is recyclable polyester fiber, which saves resources and solves the environmental pollution problem to the greatest extent.

[0035] In some embodiments of the present invention, the stitched Lixin fabric layer is stitched from recyclable regenerated fibers and 75D tensile textured yarns and has a tic-tac-toe structure, which is beneficial for increasing strength and reducing elongation.

[0036] In a second aspect, the present invention provides a method for preparing the above-mentioned wormwood midsole non-woven fabric with antibacterial function.

[0037] The preparation method provided by the present invention comprises: preparing a fiber layer and a stitched Lixin cloth layer respectively, compounding the two layers by needle punching, and then performing hot pressing molding.

[0038] Specifically, the preparation of the fiber layer includes: opening and mixing the polyester fiber, wormwood and low-melting point fiber for the first time, then opening and mixing for multiple times, combing after opening, and laying the fiber layer after combing, wherein the number of laying layers is 5 to 7.

[0039] In a preferred embodiment of the present invention, the preparation method comprises the following steps: (1) The Lixin fabric is made of non-fluorescent recyclable fibers and 75D white DTY (stretched textured yarn) through warp stitching.

[0040] (2) Put the polyester fiber, wormwood and low-melting-point fiber into the cotton mixer for the first opening and mixing, and then go through the large-bin cotton mixer for further mixing, and then go into the first and second opening machines for full opening. After opening, the feeding is controlled by the feeding roller, and then goes into the carding machine for carding. The carded fiber web is transported to the web laying machine through the conveyor curtain for web laying, and then transported to the needle loom through the V-shaped feeding. The Lixin cloth is pulled into the position of the second and third needle looms, and the Lixin 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 the five needle looms.

[0041] (3) The low-melting-point fibers uniformly mixed in the fiber web are melted by an ironing machine, and the melted low-melting-point fibers are attached to the epidermis of other fibers to obtain an elastic and antibacterial midsole non-woven fabric.

[0042] In a third aspect, the present invention provides the use of the above-mentioned wormwood midsole non-woven fabric with antibacterial function in footwear.

[0043] In order to facilitate the understanding of the wormwood midsole non-woven fabric with antibacterial function and the preparation method thereof provided by the present invention, some specific embodiments and comparative examples are used for illustration below.

[0044] In the following embodiments, the low-melting point fiber is polyester low-melting point fiber; the wormwood is dry wormwood with a water content of 7% to 10%.

[0045] Example 1

[0046] The present embodiment provides an antibacterial wormwood midsole non-woven fabric, which is formed by a fiber layer and a stitched Lixin fabric layer through needle punching, wherein the fiber layer is interwoven with 7wt% wormwood, 6wt% low melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the recyclable recycled polyester fiber has an aspect ratio of 300-350, which accounts for 65% by weight, and the remaining 35% by weight has an aspect ratio of 150-200.

[0047] This embodiment also provides a method for preparing the above-mentioned mugwort midsole non-woven fabric, and the steps are as follows: 1. Use non-fluorescent recyclable fiber and 75D white DTY to weave the Lixin cloth (tic-tac-toe structure) through warp stitching.

[0048] 2. Put the recyclable polyester fiber, wormwood and low melting point fiber into the cotton mixer for the first opening and mixing, and then go through the large warehouse cotton mixer for further mixing, and then go into the first and second opening machines 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. The Lixin cloth is pulled into the position of the second and third needle looms, and the Lixin cloth is compounded on the fiber web through the needle loom. The fiber web is reinforced under the action of the positive and negative puncture of the five needle looms.

[0049] 3. Use the ironing machine to melt the low-melting-point fibers evenly mixed in the fiber web. The molten low-melting-point fibers are attached to the epidermis of other fibers to obtain an elastic and antibacterial midsole non-woven fabric.

[0050] The actual picture of the wormwood midsole non-woven fabric obtained in this embodiment is as follows Figure 1 shown.

[0051] Example 2

[0052] This embodiment provides a wormwood midsole non-woven fabric with antibacterial function, which is formed by a fiber layer and a stitched Lixin cloth layer through needle punching, and the fiber layer is interwoven with 7wt% wormwood, 6wt% low-melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the mass proportion of the recyclable recycled polyester fiber with an aspect ratio of 300~350 is 75%, and the remaining mass proportion of 25% is an aspect ratio of 150~200. Its preparation method is the same as that of Example 1.

[0053] Example 3

[0054] This embodiment provides a wormwood midsole non-woven fabric with antibacterial function, which is formed by a fiber layer and a stitched Lixin cloth layer through a needle punching compound, wherein the fiber layer is composed of 8wt% wormwood, 5wt% low melting point fiber and 87wt% recyclable recycled polyester fiber interwoven. Among them, the mass proportion of the recyclable recycled polyester fiber with an aspect ratio of 300~350 is 70%, and the remaining mass proportion of 30% is an aspect ratio of 150~200. Its preparation method is the same as that of Example 1.

[0055] Example 4

[0056] This embodiment provides a wormwood midsole non-woven fabric with antibacterial function, which is formed by a fiber layer and a stitched Lixin cloth layer through needle punching. The fiber layer is composed of 7wt% wormwood, 6wt% low-melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the mass proportion of the recyclable recycled polyester fiber with an aspect ratio of 300~350 is 60%, and the remaining mass proportion of 40% is an aspect ratio of 150~200. Its preparation method is the same as that of Example 1.

[0057] Example 5

[0058] This embodiment provides a wormwood midsole non-woven fabric with antibacterial function, which is formed by a fiber layer and a stitched Lixin cloth layer through a needle punching compound, wherein the fiber layer is composed of 7wt% wormwood, 6wt% low melting point fiber and 87wt% recyclable recycled polyester fiber interwoven. Among them, the mass proportion of the recyclable recycled polyester fiber with an aspect ratio of 300~350 is 80%, and the remaining mass proportion of 20% is an aspect ratio of 150~200. Its preparation method is the same as that of Example 1.

[0059] Example 6

[0060] This embodiment provides a wormwood midsole non-woven fabric with antibacterial function, which is formed by a fiber layer and a stitched Lixin cloth layer through needle punching, and the fiber layer is interwoven with 7wt% wormwood, 6wt% low-melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the mass proportion of the recyclable recycled polyester fiber with an aspect ratio of 300~350 is 50%, and the remaining mass proportion of 50% is an aspect ratio of 150~200. Its preparation method is the same as that of Example 1.

[0061] Example 7

[0062] The present embodiment provides an antibacterial wormwood midsole non-woven fabric, which is formed by a fiber layer and a stitched Lixin fabric layer through needle punching, wherein the fiber layer is interwoven with 7wt% wormwood, 6wt% low melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the recyclable recycled polyester fiber has an aspect ratio of 300-350, which accounts for 65% by weight, and the remaining 35% by weight has an aspect ratio of 150-200.

[0063] This embodiment also provides a method for preparing the above-mentioned mugwort midsole non-woven fabric, and the steps are as follows: (1) Non-fluorescent recyclable fiber and 75D white DTY are used to weave the Lixin cloth (tic-tac-toe structure) through warp stitching.

[0064] (2) Recyclable polyester fiber, wormwood, and low-melting-point fiber are put into the cotton mixer for the first opening and mixing, and then further mixed in the large-bin cotton mixer, and then enter the first and second opening machines 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 web laying layer is 4 layers, and then the fiber web is transported to the needle loom through the V-shaped feeding. The Lixin cloth is pulled into the position of the second and third needle looms. The Lixin 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 the five needle looms.

[0065] (3) The low-melting-point fibers uniformly mixed in the fiber web are melted by an ironing machine, and the melted low-melting-point fibers are attached to the epidermis of other fibers to obtain an elastic and antibacterial midsole non-woven fabric.

[0066] Comparative Example 1 This comparative example provides a wormwood midsole non-woven fabric, which is formed by a fiber layer and a stitched Lixin cloth layer through needle punching, wherein the fiber layer is interwoven with 20wt% wormwood, 6wt% low melting point fiber and 74wt% recyclable recycled polyester fiber. Among them, the weight proportion of the recyclable recycled polyester fiber with an aspect ratio of 300-350 is 65%, and the remaining weight proportion of 35% is an aspect ratio of 150-200. Its preparation method is the same as that of Example 1.

[0067] Comparative Example 2 This comparative example provides a wormwood midsole nonwoven fabric, which is formed by fiber web laying and needle punching, wherein the fiber is composed of 7wt% wormwood, 6wt% low melting point fiber and 87wt% recyclable recycled polyester fiber. Among them, the recyclable recycled polyester fiber has an aspect ratio of 300-350, which accounts for 65% by weight, and the remaining 35% by weight has an aspect ratio of 150-200.

[0068] The preparation method is as follows: The recyclable polyester fiber, wormwood, and 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 and second opening machines 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 6, and then the fiber web is transported to the needle punching machine through the V-shaped feeding. The fibers are entangled by the needle punching machine. The low-melting-point fibers evenly mixed in the fiber web are melted by the ironing machine, and the molten low-melting-point fibers are attached to the epidermis of other fibers to obtain the midsole non-woven fabric.

[0069] 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).

[0070] 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 ATCC6538 Escherichia coli (8099) Candida albicans ATCC10231 The test results of the samples in Example 1 are shown in Table 1.

[0071] Table 1

[0072] 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 midsole nonwoven fabric of Example 1 of the present invention has excellent antibacterial effect.

[0073] The samples of the remaining embodiments and comparative examples were subjected to the same test, and the results all showed that the obtained midsole non-woven fabric had an antibacterial effect.

[0074] 2. Tear strength, breaking strength, elongation at break, water absorption, water volatilization rate, air permeability 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).

[0075] 2. Test equipment: computer tensile testing machine (speed 100mm / min~500mm / min adjustable).

[0076] 3. Sample specifications: 3 pieces in the warp (longitudinal) direction, 3 pieces in the weft (transverse) direction, specifications: length 150mm × width 75mm, slit 75mm.

[0077] 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.

[0078] 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.

[0079] (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.

[0080] 2. Test equipment: computer tensile testing machine (speed 100mm / min~500mm / min adjustable).

[0081] 3. Sample specifications: 3 pieces in the warp (longitudinal) direction, 3 pieces in the weft (transverse) direction, specifications: length 150mm × width 25.4mm.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] (III) Test methods for water absorption and water volatilization rate 1. Test equipment: 500ml beaker, distilled water, electronic balance, accurate to 0.01g.

[0086] 2. Sample requirements: 1 sample with a specification of 70mmX45mm; the sample should be conditioned in a standard room temperature environment (temperature 23℃±2℃, humidity 50%±10%) for at least 4 hours.

[0087] 3. Experimental steps 3.1 Water absorption First weigh the sample weight m d , accurate to 0.01g; inject water with a pH value of 7 into a beaker, place the sample in the beaker, and place it at standard room temperature for 8 hours; after 8 hours, take out the sample, wipe off excess water droplets and weigh the sample. w , accurate to 0.01g.

[0088] 3.2 Water evaporation rate After soaking in water for 8 hours, weigh the sample and place it in a normal standard room temperature environment for 16 hours. After the sample is placed for 16 hours, weigh the sample. c , accurate to 0.01g.

[0089] 4. Test results Water absorption WA = (m w -m d ) / m d *100% Moisture evaporation rate WE = (m w -m c ) / (m w -m d )*100% (IV) Air permeability test The air permeability test was conducted using the HZ-6042A air permeability tester produced by Dongguan Lixian Instrument Technology Co., Ltd. in accordance with its operating instructions.

[0090] The test results are shown in Table 2.

[0091] Table 2

[0092] From the above results, it can be seen that the comprehensive performance of the wormwood midsole non-woven fabrics of Examples 1-5 of the present invention is better, and the other examples are second.

[0093] 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 wormwood midsole non-woven fabric with antibacterial function, characterized in that: The fiber layer is compounded by a needle punching process and the fiber layer is composed of 5-10wt% of wormwood, 5-8wt% of low-melting-point fiber and the remainder of polyester fiber.

2. The wormwood midsole non-woven fabric with antibacterial function according to claim 1, characterized in that: The polyester fibers are composed of polyester fibers with an aspect ratio of 300-350 and polyester fibers with an aspect ratio of 150-200.

3. The wormwood midsole non-woven fabric with antibacterial function according to claim 2, characterized in that: The polyester fibers with an aspect ratio of 300-350 account for 60-80% of the total mass of the polyester fibers.

4. The wormwood midsole non-woven fabric with antibacterial function according to claim 3, characterized in that: The polyester fibers with an aspect ratio of 300-350 account for 65-75% of the total mass of the polyester fibers.

5. The wormwood midsole non-woven fabric with antibacterial function according to any one of claims 1 to 4, characterized in that: The fiber layer is composed of 7wt% of wormwood, 6wt% of low-melting-point fiber and 87wt% of polyester fiber.

6. The wormwood midsole non-woven fabric with antibacterial function according to any one of claims 1 to 4, characterized in that: The stitched Lixin fabric layer is stitched from recyclable regenerated fibers and 75D stretched textured yarns and has a tic-tac-toe structure.

7. A shoe product using the wormwood midsole non-woven fabric with antibacterial function as claimed in any one of claims 1 to 6.

8. A method for preparing a wormwood midsole non-woven fabric with antibacterial function, characterized in that: include: After the fiber layer and the stitched Lixin cloth layer are prepared separately, the two layers are compounded by needle punching and then hot-pressed.

9. The method for preparing the wormwood midsole non-woven fabric with antibacterial function according to claim 8, characterized in that: The preparation of the fiber layer includes: opening and mixing the polyester fiber, wormwood and low-melting point fiber for the first time, and then opening and mixing for multiple times, combing after opening, and laying the web after combing, wherein the number of the laid web layers is 5 to 7 layers.

10. The method for preparing the wormwood midsole non-woven fabric with antibacterial function according to claim 8, characterized in that: The preparation method of the wormwood midsole non-woven fabric comprises: The polyester fiber, mugwort and low-melting-point fiber are put into a cotton mixing machine for the first loosening and mixing, and then further mixed in a large bin cotton mixing machine, and then enter the first loosening machine and the second loosening machine respectively for full loosening. 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 a conveyor curtain for web laying, and then transported to the needle loom machine through a V-shaped feed, and the sewn Lixin cloth is pulled into the position of the second and third needle loom machines. The sewn Lixin 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 punctures of the five needle looms; the low-melting-point fibers mixed in the fiber web are melted by a hot ironing machine, and the molten low-melting-point fibers are attached to the epidermis of other fibers to obtain the mugwort midsole non-woven fabric.

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