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

Abstract

The present invention provides an Artemisia argyi midsole non-woven fabric with antibacterial function, its preparation method and application, relating to the technical field of midsole fabrics. The Artemisia argyi midsole non-woven fabric is formed by needling and compounding a fiber layer and a stitch-bonded Lizhi fabric layer. The fiber layer is composed of 5-10 wt% of Artemisia argyi, 5-8 wt% of low-melting-point fibers and the balance of polyester fibers intertwined. Its preparation method includes separately preparing the fiber layer and the stitch-bonded Lizhi fabric layer, then compounding the two layers by needling, and then performing hot pressing and forming. By intertwining 5-10 wt% of Artemisia argyi, 5-8 wt% of low-melting-point fibers and the balance of polyester fibers to obtain the fiber layer and then needling and compounding it with the stitch-bonded Lizhi fabric layer, an antibacterial midsole non-woven fabric with good moisture volatilization rate, air permeability, wear resistance and high strength is obtained. Its preparation method is simple, and the cost is relatively low on the premise of ensuring comprehensive performance, which is conducive to large-scale production and expanding applications.

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 to 350 account for 65 to 75% of the total mass of the polyester fibers.

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

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

[0012] In some embodiments of the present invention, the stitch-bonded Lixin cloth layer is stitch-bonded by recyclable and regenerated fibers and 75D drawn textured yarns, forming a grid 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 includes: after separately preparing the fiber layer and the stitch-bonded Lixin cloth layer, the two layers are compounded by needling, and then hot-pressed into shape.

[0015] Specifically, the preparation of the fiber layer includes: first loosening and mixing polyester fibers, wormwood, and low-melting-point fibers, then performing multiple loosening operations, followed by carding, and after carding, laying the web, with the number of laying layers being 5 to 7 layers.

[0016] Furthermore, the preparation method of the wormwood midsole non-woven fabric includes:

[0017] Put polyester fibers, wormwood, and low-melting-point fibers 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-stage opener and a second-stage 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 conveyed to a lapping machine through a conveying curtain for lapping, and then the web is conveyed to a needling machine through a V-shaped feeder. At the positions of the second needling machine and the third needling machine, the stitch-bonded Lixin cloth is introduced. Through the action of the needling machine, the stitch-bonded Lixin cloth is compounded on the web. Under the action of the front and back stabbing of the five needling machines, the web is strengthened; the low-melting-point fibers mixed in the web are melted by a hot-calendering machine, and the melted low-melting-point fibers adhere to the epidermal layer of other fibers to obtain the wormwood midsole non-woven fabric.

[0018] In a third aspect, the present invention provides the application of the above-mentioned wormwood midsole non-woven fabric with antibacterial function in shoe products.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides an Artemisia argyi middle sole non-woven fabric with antibacterial function, its preparation method and application. After interweaving 5-10wt% Artemisia argyi, 5-8wt% low-melting-point fibers and the balance of polyester fibers to obtain a fiber layer, and then needling and compounding it with a stitch-bonded Lixin cloth layer, an antibacterial middle sole non-woven fabric with good moisture volatilization rate, air permeability, wear resistance and high strength can be obtained. Its preparation method is simple, and the cost is relatively low on the premise of ensuring comprehensive performance, which is conducive to large-scale production and expanding applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a physical diagram of the Artemisia argyi middle sole non-woven fabric provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] 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. Apparently, 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 without making creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0023] In the ranges disclosed herein, the endpoints and any values are not limited to the exact ranges or values. 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 of each range and a single point value, and between single 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.

[0024] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "specific embodiments", or "some specific embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0025] For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in this field or according to the product specifications. For the reagents or instruments not specified for the manufacturers, they are all conventional products that can be obtained through regular channels.

[0026] The present invention provides an Artemisia argyi midsole non-woven fabric with antibacterial function, which is formed by needling and compounding a fiber layer and a stitch-bonded Lizhen cloth layer. The fiber layer is composed of 5-10wt% Artemisia argyi, 5-8wt% low-melting-point fiber and the balance polyester fiber intertwined.

[0027] The midsole non-woven fabric of the present invention adds Artemisia argyi with antibacterial effect, replaces ramie fiber with Artemisia argyi, reduces the production cost. Artemisia argyi itself contains volatile aromatic oil, and the finished shoes can also produce a strange fragrance, which can repel mosquitoes, flies, insects and ants and purify the air. The present invention also composites a stitch-bonded Lizhen cloth layer on one side of the fiber layer, which helps to reduce the elongation rate of the midsole non-woven fabric and obtain a midsole non-woven fabric with good moisture volatilization rate, air permeability, wear resistance and high strength.

[0028] The Artemisia argyi in the present invention is dry Artemisia argyi with a water content of 7%-10%. In some embodiments of the present invention, the preparation of the Artemisia argyi is as follows: pick the first crop of large-leaf Artemisia argyi around the Dragon Boat Festival, and then store it in separate warehouses for aging. Specifically, it goes through open-air warehouse to evaporate water, semi-indoor warehouse to volatilize oiliness, and full-indoor warehouse to ferment Artemisia argyi to enhance the medicinal effect. Among them, the storage time in the semi-indoor warehouse should not be too long, and this step can also be omitted. After evaporating water, it directly enters the full-indoor warehouse for fermentation. The fermentation temperature is controlled at 20-40°C, and the humidity is controlled at 40%-70%.

[0029] The low-melting-point fiber refers to a fiber whose cortex can melt and produce a bonding effect when heated to a certain temperature (usually between 100°C and 150°C). This kind of fiber has excellent thermal bonding performance, is easy to mix with other fibers, and has good elasticity at the same time. There are many types of low-melting-point fibers, and common ones include polyester low-melting-point fiber, polyamide low-melting-point fiber, polyester low-melting-point fiber, etc.

[0030] As an optional embodiment, the polyester fiber is composed of polyester fiber with a length-to-diameter ratio of 300-350 and polyester fiber with a length-to-diameter ratio of 150-200.

[0031] The length-to-diameter ratio refers to the ratio of the length of the fiber to its diameter. The length-to-diameter ratio of polyester fiber is affected by various factors, including fiber production process, raw material selection, draw ratio, etc. During the production process, by adjusting these parameters, polyester fibers with different length-to-diameter ratios can be prepared.

[0032] The length-to-diameter ratio of polyester fiber is an important physical parameter, which affects the performance and application of the fiber. In the midsole non-woven fabric, polyester fiber with a larger length-to-diameter ratio can improve the strength and wear resistance of the non-woven fabric, and polyester fiber with a smaller length-to-diameter ratio can improve the softness and air permeability of the non-woven fabric. The present invention has found through experiments that by selecting two kinds of polyester fibers with a length-to-diameter ratio of 300-350 and a length-to-diameter ratio of 150-200, a midsole non-woven fabric with better comprehensive performance can be obtained.

[0033] Further, the polyester fibers with an aspect ratio of 300 to 350 account for 60 to 80% of the total mass of the polyester fibers.

[0034] More preferably, the polyester fibers with an aspect ratio of 300 to 350 account for 65 to 75% of the total mass of the polyester fibers.

[0035] In a preferred embodiment of the present invention, the fiber layer is composed of 7 wt% wormwood, 6 wt% low-melting-point fibers, and 87 wt% polyester fibers interwoven.

[0036] To further save energy consumption, the polyester fiber is a recyclable and regenerated polyester fiber. This saves resources and maximally solves the problem of environmental pollution.

[0037] In some embodiments of the present invention, the stitch-bonded Lizhen cloth layer is stitch-bonded by recyclable and regenerated fibers and 75D drawn textured yarn, forming a grid structure. The grid structure is beneficial to improving strength and reducing elongation.

[0038] In a second aspect, the present invention provides a method for preparing the above-mentioned wormwood midsole non-woven fabric with antibacterial function.

[0039] The preparation method provided by the present invention includes: after separately preparing the fiber layer and the stitch-bonded Lizhen cloth layer, the two layers are compounded by needling, and then hot-pressed into shape.

[0040] Specifically, the preparation of the fiber layer includes: first loosening and mixing polyester fibers, wormwood, and low-melting-point fibers, then performing multiple loosening operations, followed by carding, and after carding, laying the web, with the number of laying layers being 5 to 7 layers.

[0041] In a preferred embodiment of the present invention, the preparation method includes the following steps:

[0042] (1) Using non-fluorescent recyclable and regenerated fibers and 75D white DTY (drawn textured yarn) to stitch-bond into Lizhen cloth.

[0043] (2) Putting polyester fibers, wormwood, and low-melting-point fibers into a cotton mixing machine for the first loosening and mixing, then further mixing through a large bin cotton mixer, and then separately entering a first-stage opener and a second-stage 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, and then the web is transported to a needling machine through a V-shaped feeder. At the positions of the second needling machine and the third needling machine, the Lizhen cloth is drawn in, and the Lizhen cloth is compounded on the web under the action of the needling machine. Under the action of the front and back needling of five needling machines, the web is strengthened.

[0044] (3) Use a hot-calendering machine to melt the low-melting-point fibers evenly mixed in the fiber web. The melted low-melting-point fibers adhere to the epidermal layer of other fibers, obtaining a midsole non-woven fabric with elasticity and antibacterial properties.

[0045] In a third aspect, the present invention provides the application of the above-mentioned mugwort midsole non-woven fabric with antibacterial function in shoe products.

[0046] For the convenience of understanding the antibacterial-functional mugwort midsole non-woven fabric and its preparation method provided by the present invention, the following is illustrated through some specific examples and comparative examples.

[0047] In the following examples, the low-melting-point fibers are polyester low-melting-point fibers; the mugwort is dry mugwort with a water content of 7% - 10%.

[0048] Example 1

[0049] This example provides an antibacterial-functional mugwort midsole non-woven fabric, which is needle-punched and compounded by a fiber layer and a stitch-bonded Lixin fabric layer. The fiber layer is composed of 7wt% mugwort, 6wt% low-melting-point fibers, and 87wt% recyclable regenerated polyester fibers. Among them, the mass ratio of the recyclable regenerated polyester fibers with an aspect ratio of 300 - 350 is 65%, and the remaining 35% by mass has an aspect ratio of 150 - 200.

[0050] This example also provides a preparation method for the above-mentioned mugwort midsole non-woven fabric, and the steps are as follows:

[0051] 1. Use non-fluorescent recyclable regenerated fibers and 75D white DTY to stitch-bond into Lixin fabric (grid structure).

[0052] 2. Put the recyclable regenerated polyester fibers, mugwort, and low-melting-point fibers into a cotton mixing machine for the first time to loosen and mix evenly, then further mix through a large-bin cotton mixing machine, and then separately enter a first-stage opener and a second-stage opener for sufficient loosening. After loosening, control the feeding through a feeding roller, and then enter a carding machine for carding. The carded fiber web is transported to a cross-lapper through a conveyor curtain for cross-lapping. The number of cross-lapped layers is 6 layers, and then the fiber web is transported to a needle-punching machine through a V-shaped feeder. At the positions of the second and third needle-punching machines, the Lixin fabric is led in, and the Lixin fabric is compounded on the fiber web through the action of the needle-punching machine. Under the action of the positive and negative punching of five needle-punching machines, the fiber web is strengthened.

[0053] 3. Use a hot-calendering machine to melt the low-melting-point fibers evenly mixed in the fiber web. The melted low-melting-point fibers adhere to the epidermal layer of other fibers, obtaining a midsole non-woven fabric with elasticity and antibacterial properties.

[0054] The physical diagram of the mugwort midsole non-woven fabric obtained in this example is as Figure 1 shown.

[0055] Example 2

[0056] This example provides an Artemisia argyi middle sole non-woven fabric with antibacterial function, which is formed by needling and compounding a fiber layer and a stitch-bonded Lixin fabric layer. The fiber layer is composed of 7wt% Artemisia argyi, 6wt% low-melting-point fiber, and 87wt% recyclable and regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable and regenerated polyester fiber with an aspect ratio of 300 - 350 is 75%, and the remaining 25% by mass has an aspect ratio of 150 - 200. Its preparation method is the same as that of Example 1.

[0057] Example 3

[0058] This example provides an Artemisia argyi middle sole non-woven fabric with antibacterial function, which is formed by needling and compounding a fiber layer and a stitch-bonded Lixin fabric layer. The fiber layer is composed of 8wt% Artemisia argyi, 5wt% low-melting-point fiber, and 87wt% recyclable and regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable and regenerated polyester fiber with an aspect ratio of 300 - 350 is 70%, and the remaining 30% by mass has an aspect ratio of 150 - 200. Its preparation method is the same as that of Example 1.

[0059] Example 4

[0060] This example provides an Artemisia argyi middle sole non-woven fabric with antibacterial function, which is formed by needling and compounding a fiber layer and a stitch-bonded Lixin fabric layer. The fiber layer is composed of 7wt% Artemisia argyi, 6wt% low-melting-point fiber, and 87wt% recyclable and regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable and regenerated polyester fiber with an aspect ratio of 300 - 350 is 60%, and the remaining 40% by mass has an aspect ratio of 150 - 200. Its preparation method is the same as that of Example 1.

[0061] Example 5

[0062] This example provides an Artemisia argyi middle sole non-woven fabric with antibacterial function, which is formed by needling and compounding a fiber layer and a stitch-bonded Lixin fabric layer. The fiber layer is composed of 7wt% Artemisia argyi, 6wt% low-melting-point fiber, and 87wt% recyclable and regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable and regenerated polyester fiber with an aspect ratio of 300 - 350 is 80%, and the remaining 20% by mass has an aspect ratio of 150 - 200. Its preparation method is the same as that of Example 1.

[0063] Example 6

[0064] This embodiment provides an Artemisia argyi midsole non-woven fabric with antibacterial function, which is formed by needle punching and compounding a fiber layer and a stitch-bonded Resinova fabric layer. The fiber layer is composed of 7wt% Artemisia argyi, 6wt% low-melting-point fiber, and 87wt% recyclable regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable regenerated polyester fiber with an aspect ratio of 300-350 is 50%, and the remaining 50% mass ratio has an aspect ratio of 150-200. Its preparation method is the same as that of Example 1.

[0065] Example 7

[0066] This embodiment provides an Artemisia argyi midsole non-woven fabric with antibacterial function, which is formed by needle punching and compounding a fiber layer and a stitch-bonded Resinova fabric layer. The fiber layer is composed of 7wt% Artemisia argyi, 6wt% low-melting-point fiber, and 87wt% recyclable regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable regenerated polyester fiber with an aspect ratio of 300-350 is 65%, and the remaining 35% mass ratio has an aspect ratio of 150-200.

[0067] This embodiment also provides a preparation method of the above Artemisia argyi midsole non-woven fabric, and the steps are as follows:

[0068] (1) Use non-fluorescent recyclable regenerated fiber and 75D white DTY to stitch-bond into Resinova fabric (grid structure).

[0069] (2) Put recyclable regenerated polyester fiber, Artemisia argyi, and low-melting-point fiber into a cotton mixing machine for the first opening and mixing, then further mix through a large bin cotton mixer, and then enter a first opening machine and a second opening machine respectively for sufficient opening. After opening, 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 4 layers, and then the web is transported to a needle punching machine through a V-shaped feeding. The Resinova fabric is introduced at the positions of the second needle punching machine and the third needle punching machine. Through the action of the needle punching machine, the Resinova fabric is compounded on the web. Under the action of the front and back punching of five needle punching machines, the web is strengthened.

[0070] (3) Use a calendering machine to melt the low-melting-point fiber uniformly mixed in the web. The molten low-melting-point fiber adheres to the epidermal layer of other fibers, and a midsole non-woven fabric with elasticity and antibacterial property is obtained.

[0071] Comparative Example 1

[0072] This comparative example provides an Artemisia argyi midsole non-woven fabric, which is formed by needle punching and compounding a fiber layer and a stitch-bonded Resinex layer. The fiber layer is composed of 20 wt% Artemisia argyi, 6 wt% low-melting-point fiber, and 74 wt% recyclable regenerated polyester fiber intertwined. Among them, the mass ratio of the recyclable regenerated polyester fiber with an aspect ratio of 300 - 350 is 65%, and the remaining 35% by mass has an aspect ratio of 150 - 200. Its preparation method is the same as that of Example 1.

[0073] Comparative Example 2

[0074] This comparative example provides an Artemisia argyi midsole non-woven fabric, which is formed by needle punching a fiber web. The fiber is composed of 7 wt% Artemisia argyi, 6 wt% low-melting-point fiber, and 87 wt% recyclable regenerated polyester fiber. Among them, the mass ratio of the recyclable regenerated polyester fiber with an aspect ratio of 300 - 350 is 65%, and the remaining 35% by mass has an aspect ratio of 150 - 200.

[0075] Its preparation method is as follows:

[0076] Put the recyclable regenerated polyester fiber, Artemisia argyi, and low-melting-point fiber into the cotton mixing machine for the first opening and mixing, then further mix through the large bin cotton mixing machine, and then separately enter the first opening machine and the second opening machine for full opening. After opening, control the feeding through the feeding roller, and then enter the carding machine for carding. The carded web is transported to the lapping machine through the conveying curtain for lapping. The number of lapping layers is 6 layers, and then the web is transported to the needle punching machine through the V-shaped feeding, and the fibers are entangled by the action of the needle punching machine. Use the calendering machine to melt the low-melting-point fibers evenly mixed in the web, and the molten low-melting-point fibers adhere to the epidermal layer of other fibers to obtain the midsole non-woven fabric.

[0077] Performance Testing

[0078] 1. Antibacterial Performance

[0079] Detection Method:

[0080] 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 textile).

[0081] Sterilization Method: High-pressure steam sterilization

[0082] Working Solution: 0.03 mol / L phosphate buffer

[0083] Contact Time: 18 hours

[0084] Test Specimen: 0.75 g

[0085] Test Bacterial Strains:

[0086] Staphylococcus aureus ATCC6538

[0087] Escherichia coli (8099)

[0088] Candida albicans ATCC10231

[0089] The test results of the sample in Example 1 are shown in Table 1 as follows.

[0090] Table 1

[0091]

[0092] The evaluation of the antibacterial effect in GB / T20944.3-2008 is as follows: when 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. Thus, it can be seen that the midsole non-woven fabric in Example 1 of the present invention has excellent antibacterial effect.

[0093] The samples of the remaining examples and comparative examples were subjected to the same test, and the results all showed that the obtained midsole non-woven fabric had antibacterial effect.

[0094] 2. Tear strength, breaking strength, elongation at break, water absorption rate, moisture volatilization rate, air permeability

[0095] (I) Test method for tear strength

[0096] 1. Normative reference documents: GB / T 3917.2, Tear properties of fabrics - Determination of tear force of trousers-shaped specimens (single tear).

[0097] 2. Test equipment: Computerized tensile testing machine (speed adjustable from 100 mm / min to 500 mm / min).

[0098] 3. Specimen specifications: 3 pieces in the warp (longitudinal) direction and 3 pieces in the weft (transverse) direction, with the specification of length 150 mm × width 75 mm and slit 75 mm.

[0099] 4. Test steps: Start the tensile testing machine, set the speed and gauge length: the speed is 300 mm / min and the gauge length 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 vertical, without distortion, and the parts of the specimen exposed above and below the upper 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.

[0100] 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 entire test run graph, the first peak value is not calculated, and the average value of the 5 highest peak values is recorded as the test result, with the unit of Newton (N), and the value is accurate to an integer; the average value of 3 specimens is taken as the final result, and the value is accurate to an integer.

[0101] (2) Test methods for breaking strength and elongation at break

[0102] 1. Normative reference documents: GB / T 3923.1, Determination of breaking strength and elongation at break of fabrics, strip method.

[0103] 2. Test equipment: Computer tensile testing machine (speed adjustable from 100 mm / min to 500 mm / min).

[0104] 3. Specimen specifications: 3 pieces in the warp (longitudinal) direction and 3 pieces in the weft (transverse) direction, specifications: length 150 mm × width 25.4 mm.

[0105] 4. Test steps: Start the tensile testing machine, set the speed and gauge length: the speed is 300 mm / min and the gauge length is 100 mm; clamp both ends of the specimen on the upper and lower fixtures of the tensile machine, and the clamped specimen should be on the same plane, keep it vertical, and not be distorted. The parts of the specimen exposed above the upper fixture and below the lower fixture should be the same. Start the tensile testing machine to start the test; the tensile testing machine pulls the specimen to break, and record the maximum force value of the tensile testing machine and the distance between the two gauge lines.

[0106] 5. Test results:

[0107] 5.1 Breaking strength (N / 2.54 cm) = maximum force value at break (N), and the average value of 3 specimens is taken as the final result, and the value is accurate to an integer.

[0108] 5.2 Calculation formula for elongation at break:

[0109] Elongation at break (%) = (total distance between the gauges at break - original gauge distance) / original gauge distance * 100%, and the average value of 3 specimens is taken as the final result, and the value is accurate to an integer.

[0110] (3) Test methods for water absorption rate and moisture volatilization rate

[0111] 1. Test equipment: 500 ml beaker, distilled water, electronic balance, accurate to 0.01 g.

[0112] 2. Requirements for specimens: 1 specimen with a specification of 70mm X 45mm; the specimen shall be conditioned in a standard room temperature environment (temperature 23°C ± 2°C, humidity 50% ± 10%) for at least 4h.

[0113] 3. Test procedures

[0114] 3.1 Water absorption rate

[0115] First, weigh the specimen as m d , accurate to 0.01g; pour water with a pH value of 7 into the beaker, place the specimen in the beaker, and let it stand for 8h under standard room temperature conditions; after 8h, take out the specimen, wipe off the excess water droplets, and weigh the specimen as m w , accurate to 0.01g.

[0116] 3.2 Moisture volatilization rate

[0117] Place the specimen that has been weighed after soaking for 8h in a normal standard room temperature environment for 16h; after the specimen has been placed for 16h, weigh the specimen as m c , accurate to 0.01g.

[0118] 4. Test results

[0119] Water absorption rate WA = (m w - m d ) / m d * 100%

[0120] Moisture volatilization rate WE = (m w - m c ) / (m w - m d ) * 100%

[0121] (4) Air permeability test

[0122] Use the HZ-6042A air permeability tester of Dongguan Lixian Instrument Technology Co., Ltd. to conduct the air permeability test according to its operation instructions.

[0123] The test results are shown in Table 2.

[0124] Table 2

[0125]

[0126] From the above results, it can be seen that the comprehensive performance of the Artemisia argyi midsole non-woven fabric in Examples 1-5 of the present invention is relatively excellent, and that of the other examples is inferior.

[0127] 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 various embodiments of the present invention.

Claims

1. An Artemisia argyi middle sole non-woven fabric with antibacterial function, characterized in that, It is formed by needling and compounding a fiber layer and a stitch-bonded non-woven fabric layer. The fiber layer is composed of 5-10 wt% wormwood, 5-8 wt% low-melting-point fiber, and the balance of polyester fiber interwoven. The wormwood is dry wormwood with a water content of 7%-10%. The polyester fiber is composed of polyester fiber with an aspect ratio of 300-350 and polyester fiber with an aspect ratio of 150-200. The polyester fiber with an aspect ratio of 300-350 accounts for 60-80% of the total mass of the polyester fiber. The preparation method of the antibacterial-functional wormwood midsole non-woven fabric includes: After separately preparing the fiber layer and the stitch-bonded non-woven fabric layer, the two layers are compounded by needling, and then hot pressing and forming are carried out. The preparation of the fiber layer includes: first loosening and mixing polyester fiber, wormwood, and low-melting-point fiber, then carrying out multiple loosening, carding after loosening, and laying the web after carding. The number of laying web layers is 5-7 layers.

2. The wormwood midsole non-woven fabric with antibacterial function according to claim 1, characterized in that The polyester fiber with an aspect ratio of 300-350 accounts for 65-75% of the total mass of the polyester fiber.

3. The Artemisia argyi midsole non-woven fabric with antibacterial function according to claim 1 or 2, characterized in that, The fiber layer is composed of 7 wt% wormwood, 6 wt% low-melting-point fiber, and 87 wt% polyester fiber interwoven.

4. The mugwort midsole non-woven fabric with antibacterial function according to claim 1 or 2, characterized in that, The stitch-bonded non-woven fabric layer is stitch-bonded by recyclable regenerated fiber and 75D drawn textured yarn, and is in a grid structure.

5. A shoe product using the antibacterial-functional wormwood midsole non-woven fabric according to any one of claims 1-4.

6. A preparation method of Chinese mugwort insole non-woven fabric with antibacterial function, characterized in that, Including: After separately preparing the fiber layer and the stitch-bonded non-woven fabric layer, the two layers are compounded by needling, and then hot pressing and forming are carried out. The preparation of the fiber layer includes: first loosening and mixing polyester fiber, wormwood, and low-melting-point fiber, then carrying out multiple loosening, carding after loosening, and laying the web after carding. The number of laying web layers is 5-7 layers. The polyester fiber is composed of polyester fiber with an aspect ratio of 300-350 and polyester fiber with an aspect ratio of 150-200. The polyester fiber with an aspect ratio of 300-350 accounts for 60-80% of the total mass of the polyester fiber.

7. The preparation method of the mugwort midsole non-woven fabric with antibacterial function according to claim 6, characterized in that, The preparation method of the wormwood midsole non-woven fabric includes: Put polyester fiber, wormwood, and low-melting-point fiber into a cotton mixing machine for the first loosening and mixing, then further mix through a large bin cotton mixing machine, and then separately enter a first-stage opener and a second-stage opener for sufficient loosening. After loosening, the feeding is controlled by a feeding roller, and then enter a carding machine for carding. The carded web is transported to a web laying machine through a conveying curtain for web laying, and then the web is transported to a needling machine through a V-shaped feeding. The stitch-bonded non-woven fabric is led in at the positions of the second needling machine and the third needling machine, and the stitch-bonded non-woven fabric is compounded on the web through the action of the needling machine. Under the action of the front and back stabbing of the five needling machines, the web is strengthened; the low-melting-point fiber mixed in the web is melted by a calendering machine, and the melted low-melting-point fiber adheres to the epidermal layer of other fibers to obtain the wormwood midsole non-woven fabric.

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