A wear-resistant and scratch-resistant yoga mat and its preparation method

Abstract

The present invention discloses a wear-resistant and scratch-resistant yoga mat and a preparation method thereof, belonging to the technical field of yoga mats. The preparation method includes: Step S01. Coating a wear-resistant layer slurry on a first mesh cloth, and obtaining a wear-resistant layer with a reticular structure after plasticization; Step S02. Coating a foaming layer slurry on a second mesh cloth, and obtaining a preliminary blank layer after curing and shaping; Step S03. Compounding the wear-resistant layer on the preliminary blank layer, and obtaining a wear-resistant and scratch-resistant yoga mat after foaming. By first preparing a reticular wear-resistant layer and an unfoamed preliminary blank layer, then laminating and compounding the two, and then foaming, the preparation method can obtain a yoga mat with good wear resistance, scratch resistance and resilience. Moreover, during the foaming process of the foaming layer, part of the wear-resistant blocks in the wear-resistant layer can be embedded therein, so the two can be stably combined without other adhesives. The above preparation method has simple steps and low requirements for equipment, and can be realized by using existing yoga mat production equipment, so it is convenient for popularization and application.

Description

Technical Field

[0001] The present invention relates to the technical field of yoga mats, and particularly relates to a wear-resistant and scratch-resistant yoga mat and a preparation method thereof. Background Art

[0002] Yoga mats are essential equipment for yoga exercises and can provide protection for yoga practitioners. Existing yoga mats are usually made of foaming materials such as PVC, EVA, and TPE, which have good elasticity and can provide a buffering effect during exercise. Among them, due to the low cost of PVC foaming materials, they are the most widely used. However, PVC foaming materials have poor wear resistance and scratch resistance. To improve their wear resistance, a wear-resistant layer is usually laminated on their surface. Existing wear-resistant layers generally use PU films with good wear resistance, but PU films have high costs and complex preparation processes, and cannot be directly produced by existing yoga mat production equipment, and additional equipment is required; in addition, existing PU films usually need to completely cover the PVC foaming layer, and their surfaces are smooth and flat, resulting in a single apparent color of the yoga mat and poor anti-slip performance.

[0003] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present invention is to provide a wear-resistant and scratch-resistant yoga mat and a preparation method thereof, aiming to solve the defect of poor wear resistance and scratch resistance of yoga mats made of PVC foaming materials in the existing technology.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A preparation method of a wear-resistant and scratch-resistant yoga mat, wherein the method includes:

[0007] Step S01. Coating a wear-resistant layer slurry on a first mesh fabric, and obtaining a wear-resistant layer with a mesh structure after plasticization;

[0008] Step S02. Coating a foaming layer slurry on a second mesh fabric, and obtaining a preliminary blank layer after curing and shaping;

[0009] Step S03. Laminating the wear-resistant layer on the preliminary blank layer, and obtaining a wear-resistant and scratch-resistant yoga mat after foaming.

[0010] In the preparation method of the wear-resistant and scratch-resistant yoga mat, in the step S01, the first mesh fabric is formed by interweaving warp and weft threads. Each warp thread is composed of two 150D yarns, and each weft thread is composed of at least four or more 150D yarns, and a mesh node is formed at the intersection of the warp and weft threads; the mesh node is a square, diamond or oval weaving structure.

[0011] In the preparation method of the wear-resistant and scratch-resistant yoga mat, by weight, the wear-resistant layer slurry includes: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, and 80-100 parts of filler; by weight, the foaming layer slurry includes: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, and 10-12 parts of foaming agent.

[0012] In the preparation method of the wear-resistant and scratch-resistant yoga mat, the PVC resin powder includes two or three of the first PVC paste resin powder, the second PVC paste resin powder, the third PVC paste resin powder, and the fourth PVC paste resin powder. The polymerization degree of the first PVC paste resin powder is 1100, the polymerization degree of the second PVC paste resin powder is 950, the polymerization degree of the third PVC paste resin powder is 1060, and the polymerization degree of the fourth PVC paste resin powder is 1300.

[0013] In the preparation method of the wear-resistant and scratch-resistant yoga mat, in step S01, the viscosity of the wear-resistant layer slurry is 220-500 MPa·s.

[0014] In the preparation method of the wear-resistant and scratch-resistant yoga mat, in step S02, the viscosity of the foaming layer slurry is 40000-60000 MPa·s.

[0015] In the preparation method of the wear-resistant and scratch-resistant yoga mat, in step S03, the foaming temperature is: 195-200 °C in zone 1, 215-220 °C in zone 2, 215-220 °C in zone 3, and 90 °C or lower in zone 4.

[0016] A wear-resistant and scratch-resistant yoga mat is prepared by the method described above, and includes:

[0017] A foaming layer, which is arranged at the bottom and is made of a second mesh cloth and a PVC foaming material;

[0018] A wear-resistant layer, which is laminated on the foaming layer, is a net-like structure, and is composed of a first mesh cloth and wear-resistant blocks attached to the first mesh cloth in an array. There are mesh holes formed between adjacent wear-resistant blocks;

[0019] Part of the wear-resistant blocks are embedded in the foaming layer, and part of them protrude upward to form convex points; the upper surface of part of the foaming layer is exposed through the mesh holes; the wear-resistant blocks are prepared from PVC resin powder, plasticizer, stabilizer, and filler.

[0020] In the wear-resistant and scratch-resistant yoga mat, the wear-resistant blocks can be in a diamond, square, or oval structure.

[0021] In the wear-resistant and scratch-resistant yoga mat, the projected areas of the wear-resistant blocks and the mesh holes are the same.

[0022] Beneficial effects:

[0023] The present invention provides a method for preparing a wear-resistant and scratch-resistant yoga mat. By first preparing a net-shaped wear-resistant layer and an unfoamed blank layer, then laminating and compounding the two, and then foaming, a yoga mat with good wear resistance, scratch resistance, and resilience can be obtained. Moreover, during the foaming process of the foamed layer, the wear-resistant blocks in the wear-resistant layer can be partially embedded therein. Therefore, the two can be stably combined without the need for other adhesives. The above preparation method has simple steps and low requirements for equipment, and can be realized by using existing yoga mat production equipment. Therefore, it is convenient for popularization and application.

[0024] The invention also provides a wear-resistant and scratch-resistant yoga mat. By laminating a net-shaped wear-resistant layer on the surface of the foamed layer, compared with the existing film-shaped wear-resistant layer, it has at least the following beneficial effects: First, since the wear-resistant layer is a net-shaped hollow structure, this structure does not fully cover the foamed layer, and its hollow part can reduce the weight. Therefore, when the weight of the wear-resistant layer remains unchanged, the wear-resistant blocks can have a relatively thick thickness, so its wear resistance and scratch resistance can be greatly improved; Second, for the wear-resistant layer with a grid-like structure, since adjacent wear-resistant blocks are connected by wire meshes, even if the thickness of the wear-resistant blocks is relatively thick, they can still be bent and deformed at the wire mesh parts, so that it can be curled and folded along with the foamed layer without being affected by the thickness of the wear-resistant blocks; Third, the hollow part of the net-shaped structure can also expose the foamed layer. Furthermore, when the foamed layer and the wear-resistant layer have different colors, a mat body with two colors intertwined can be obtained, which has a special appearance shape; In addition, the protruding wear-resistant blocks can not only form a special shape structure, making the surface of the yoga mat have different shapes, but also the protruding wear-resistant blocks have the functions of anti-slip and massage, which can improve the user experience. Description of the drawings

[0025] Figure 1 It is a physical diagram of the wear-resistant and scratch-resistant yoga mat provided by the present invention.

[0026] Figure 2 It is a schematic structural diagram of the wear-resistant layer.

[0027] Figure 3 It is a schematic cross-sectional diagram of the wear-resistant and scratch-resistant yoga mat.

[0028] Figure 4 It is a schematic structural diagram of the first mesh cloth.

[0029] Reference numerals in the drawings: 1 - foamed layer, 2 - wear-resistant layer, 3 - wear-resistant block, 4 - first mesh cloth, 5 - second mesh cloth, 6 - mesh hole, 7 - warp, 8 - weft, 9 - mesh node. Detailed embodiments

[0030] The present invention provides an abrasion-resistant and scratch-resistant yoga mat and a preparation method thereof. To make the objectives, technical solutions and effects of the present invention clearer and more definite, the following examples are given to further elaborate on the present invention in detail. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] As Figure 1 shown, the present invention provides an abrasion-resistant and scratch-resistant yoga mat, and the yoga mat includes a foaming layer 1 and a wear-resistant layer 2 provided on the foaming layer.

[0034] Among them, as Figure 3 shown, the foaming layer 1 is provided at the bottom and is made of a second mesh cloth 5 and a PVC foaming material, so it has good elasticity and can provide a buffering effect for the yoga mat.

[0035] As Figure 3 shown, the wear-resistant layer 2 is provided on the foaming layer 1 and is a mesh structure. As Figure 2 shown, it is composed of a first mesh cloth 4 and wear-resistant blocks 3 attached to the first mesh cloth in an array, and there are mesh holes 6 formed between two adjacent wear-resistant blocks 3. Part of the wear-resistant block 3 is embedded in the foaming layer, and part of it protrudes upward to form bumps. The wear-resistant block is prepared from a wear-resistant layer slurry, and the wear-resistant layer slurry includes PVC resin powder, plasticizer, stabilizer and filler. Since no foaming agent is added to the wear-resistant layer slurry, the plasticized wear-resistant layer has good abrasion resistance and scratch resistance, and it can make the surface of the yoga mat 30 to 40 times more scratch-resistant and abrasion-resistant than the foaming layer.

[0036] The upper surface of the foaming layer 1 corresponding to the position of the mesh holes 6 can be exposed on the surface. Therefore, when the colors of the foaming layer and the wear-resistant layer are different, a mat with two colors can be formed.

[0037] Therefore, for the above-mentioned yoga mat, by laminating a wear-resistant layer with a mesh structure on the surface of the foaming layer, compared with the existing film-like wear-resistant layer, it has at least the following beneficial effects: First, since the wear-resistant layer is a mesh-like hollow structure, this structure does not fully cover the foaming layer, and its hollow part can reduce the weight. Therefore, when the weight of the wear-resistant layer remains unchanged, the wear-resistant blocks can have a thicker thickness, so its wear resistance and scratch resistance can be greatly improved; Second, for the wear-resistant layer with a grid-like structure, since adjacent wear-resistant blocks are connected by wire meshes, even if the thickness of the wear-resistant blocks is relatively thick, it can still be bent and deformed at the wire mesh parts, so that it can be curled and folded along with the foaming layer, without being affected by the thickness of the wear-resistant blocks; Third, the hollow part of the mesh structure can also expose the foaming layer. Furthermore, when the colors of the foaming layer and the wear-resistant layer are different, a mat with two colors intertwined can be obtained, with a special appearance; In addition, the protruding wear-resistant blocks can not only form a special shape structure, making the surface of the yoga mat have different shapes, and moreover, the protruding wear-resistant blocks have the functions of anti-slip and massage, which can improve the user experience.

[0038] In the wear-resistant and scratch-resistant yoga mat with the above structure, the wear-resistant blocks 3 can be in a diamond, square or circular structure. Wear-resistant blocks with different shapes can form a special appearance and have different ornamental effects. In the specific implementation process, wear-resistant blocks with corresponding shapes can be selected according to actual needs, and during preparation, they can be realized through mesh cloths with different shapes.

[0039] Since the foaming layer can be exposed on the surface through the mesh holes of the wear-resistant layer, therefore, in order to improve the ornamental effect, in the wear-resistant and scratch-resistant yoga mat with the above structure, the colors of the foaming layer and the wear-resistant layer are different. Through different colors, the mesh of the wear-resistant layer can be made more prominent, with a better ornamental effect, and it can also break the defect that the existing yoga mats can only obtain mats with multiple colors through printing.

[0040] Furthermore, in order to obtain a better ornamental effect, pattern textures can also be printed on the surface of the foaming layer. The pattern textures can be partially exposed through the mesh holes of the wear-resistant layer, and since they are located below the wear-resistant layer, they will not come into contact with the human body during use. Therefore, compared with the patterns printed on the surface of the yoga mat in the prior art, they will not be worn and have a longer lifespan.

[0041] In addition, since the area ratio of the wear-resistant blocks in the wear-resistant layer affects the wear resistance and scratch resistance, when its area ratio is larger and the area ratio of the mesh holes is smaller, its wear resistance and scratch resistance will be better, but it will increase the cost. In this regard, in a preferred embodiment, the projected areas of the wear-resistant blocks and the mesh holes are the same, and their area ratios are the same, which not only has good wear resistance and scratch resistance, but also has a moderate cost.

[0042] The present application also provides a method for preparing a wear-resistant and scratch-resistant yoga mat, and the method includes:

[0043] Step S01. Coating a wear-resistant layer slurry on a first mesh fabric, and obtaining a wear-resistant layer with a mesh structure after plasticization;

[0044] Step S02. Coating a foaming layer slurry on a second mesh fabric, and obtaining a primary blank layer after curing and shaping;

[0045] Step S03. Compounding the wear-resistant layer with the primary blank layer, and obtaining a wear-resistant and scratch-resistant yoga mat after foaming.

[0046] In the above method for preparing a wear-resistant and scratch-resistant yoga mat, a mesh-shaped wear-resistant layer and an unfoamed primary blank layer are first prepared, and then the two are laminated and compounded. After foaming, a yoga mat with good wear resistance, scratch resistance and resilience can be obtained. Moreover, during the foaming process of the foaming layer, some wear-resistant blocks in the wear-resistant layer can be embedded therein. Therefore, the two can be stably combined without other adhesives. The above preparation method has simple steps and low requirements for equipment, and can be realized by using existing yoga mat production equipment. Therefore, it is convenient for popularization and application.

[0047] In a preferred embodiment, in the method for preparing a wear-resistant and scratch-resistant yoga mat, the wear-resistant layer slurry includes, by weight parts: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, and 80-100 parts of filler. Among them, the PVC resin powder is composed of a variety of PVC paste resin powders with different polymerization degrees to obtain a wear-resistant layer with better wear-resistant and scratch-resistant characteristics. The plasticizer can improve the toughness of the wear-resistant layer; the stabilizer can improve the thermal stability of the PVC resin powder during plasticization; the filler is calcium carbonate, which can improve the strength of the wear-resistant layer and reduce the cost.

[0048] In a preferred embodiment, the filler further includes tourmaline powder, and the tourmaline powder can emit far-infrared rays and has a physiotherapy effect on the human body. In the specific implementation process, tourmaline powder can be added according to needs. When a strong far-infrared ray needs to be released, a large amount of tourmaline powder can be added. Otherwise, a small amount or no tourmaline powder is added.

[0049] In a preferred embodiment, in the method for preparing a wear-resistant and scratch-resistant yoga mat, by weight parts, the foaming layer slurry includes: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, and 10-12 parts of foaming agent. Compared with the wear-resistant layer, the foaming layer is added with a foaming agent, and the foaming agent can make the foaming layer slurry foam at a specific temperature, thereby obtaining a foaming layer with a porous structure and thus having better resilience.

[0050] In a preferred embodiment, the PVC resin powder includes two or three of the first PVC paste resin powder, the second PVC paste resin powder, the third PVC paste resin powder, and the fourth PVC paste resin powder. The polymerization degree of the first PVC paste resin powder is 1100, the polymerization degree of the second PVC paste resin powder is 950, the polymerization degree of the third PVC paste resin powder is 1060, and the polymerization degree of the fourth PVC paste resin powder is 1300. By using PVC paste resin powders with different polymerization degrees, the plasticized foaming layer and wear-resistant layer can have different characteristics. Among them, as a preferred solution, the PVC resin powder in the wear-resistant layer slurry is composed of 50% of the first PVC paste resin and 50% of the second PVC paste resin powder or the third PVC paste resin powder; the PVC resin powder in the foaming layer slurry is composed of the first PVC paste resin powder, the third PVC paste resin powder, and the fourth PVC paste resin powder, and has the characteristic of good resilience after foaming.

[0051] Since the first mesh fabric is the key to forming the wear-resistant layer into a mesh shape, the first mesh fabric is woven from the warp yarns 7 and the weft yarns 8, as Figure 4 shown. Among them, each of the warp yarns 7 is composed of two yarns, and each of the weft yarns 8 is composed of at least four or more yarns, preferably six yarns. At the intersection of the warp and weft yarns, a mesh node 9 can be formed, and the mesh node can be a square, diamond or elliptical woven structure. Since the mesh node 9 is a mesh, its pore density is small. Therefore, when the wear-resistant layer slurry is scraped thereon, the mesh node can hang the slurry, while the slurry coated at the mesh holes cannot hang the slurry. Therefore, after plasticization, wear-resistant blocks can be formed at the mesh nodes, and holes are formed at the mesh holes 6 due to no hanging of the slurry, thereby forming a mesh-shaped wear-resistant layer.

[0052] Since the size and area ratio of the mesh holes 6, the woven size at the mesh nodes 9 at the intersection of the warp and weft yarns, and the thickness of the weft yarns will all affect the shape and performance of the wear-resistant layer. Among them, when the viscosity of the slurry is the same, the larger the mesh holes and the higher the area ratio, the more parts of the foaming layer can be exposed. However, when the mesh holes are large and the ratio is high, the slurry hanging area of the mesh fabric will decrease, resulting in a decrease in the wear resistance and scratch resistance of the wear-resistant layer; at the same time, the larger the woven area and the larger the thickness of the weft yarns at the mesh nodes, the slurry hanging amount can be increased, thereby improving the wear resistance and scratch resistance of the wear-resistant layer, but at the same time, the cost will increase. In a preferred embodiment, in the step S01, the size of the mesh holes in the first mesh fabric is the same as that of the wear-resistant blocks, both are square, with a side length of 3-5 mm, and the area ratio of the mesh holes and the wear-resistant blocks on the wear-resistant layer is 50% each, which can make the porosity and slurry hanging amount moderate, and the obtained wear-resistant layer has good wear resistance and scratch resistance, and the cost is moderate.

[0053] In addition, the thickness of the yarns in the warp 7 and weft 8 also affects the amount of sizing. The thicker the yarn, the more sizing, and the better the wear and scratch resistance. In a preferred embodiment, the warp and weft are both composed of 150D yarns, which have a relatively moderate amount of sizing and can obtain a wear-resistant layer with good wear and scratch resistance.

[0054] In addition to the first mesh fabric affecting the shape and performance of the wear-resistant layer, the viscosity of the wear-resistant layer sizing has a greater impact on the amount of sizing. Generally speaking, under the same first mesh fabric, the lower the viscosity of the wear-resistant layer sizing, the less the amount of sizing, and the worse the wear and scratch resistance. On the contrary, the better. However, the viscosity of the wear-resistant layer sizing cannot be too high either, as it will be difficult to leak the sizing, unable to form mesh holes, increasing the cost and decreasing the bending property. In a preferred embodiment, the viscosity of the wear-resistant layer sizing is 220 - 500 MPa·s, which has a good amount of sizing, can form mesh holes, has good wear and scratch resistance, and a moderate cost.

[0055] Of course, the viscosity of the foaming layer sizing also affects the performance of the foaming layer. However, since the foaming layer needs to be sized comprehensively on the second mesh fabric without forming mesh holes, and even when the sizing penetrates through the mesh holes of the second mesh fabric, it is necessary to ensure that the sizing does not drip. Therefore, a higher viscosity is required for the foaming layer sizing. In a preferred embodiment, the viscosity of the foaming layer sizing is 40000 - 60000 MPa·s. It can completely cover the second mesh fabric, and under the action of the squeegee, it can partially penetrate under the second mesh fabric without dripping, so it can form anti-slip lines on the lower surface of the second mesh fabric and has an anti-slip effect.

[0056] In a preferred embodiment, in step S03, the foaming temperature is: in zone 1, 195 - 200 °C; in zone 2, 215 - 220 °C; in zone 3, 215 - 220 °C; in zone 4, 90 °C and below. Through foaming, the initial blank layer can be plasticized to form a foaming layer with a porous structure. At the same time, during the foaming process, the wear-resistant blocks are partially embedded in the foaming layer, making the foaming layer and the wear-resistant layer stably combined into one body, obtaining a yoga mat with excellent wear and scratch resistance and elasticity.

[0057] To further elaborate on a wear-resistant and scratch-resistant yoga mat and its preparation method provided by the present invention, the following embodiments are provided.

[0058] Example 1

[0059] A wear-resistant and scratch-resistant yoga mat, which includes a foaming layer and a mesh-shaped wear-resistant layer provided on the foaming layer. The wear-resistant layer is composed of a first mesh fabric and square wear-resistant blocks attached to the mesh nodes of the first mesh fabric. Square mesh holes with the same size and shape as the wear-resistant blocks are formed between the wear-resistant blocks. The foaming layer is exposed on the surface through the mesh holes. The side length of the wear-resistant blocks and the mesh holes is 4 mm. The gram weight of the wear-resistant layer is 330 g / m 2, the grammage of the foaming layer is 965 g / m 2 .

[0060] The wear-resistant and scratch-resistant yoga mat is prepared by the following steps:

[0061] Step S01. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin and 50% of the second PVC paste resin powder or the third PVC paste resin powder), 85 parts of plasticizer, 2.5 parts of stabilizer, and 90 parts of calcium carbonate, stir and mix evenly, measure its viscosity, and when the viscosity is 400 MPa·s, obtain the wear-resistant layer slurry; coat the wear-resistant layer slurry on the first mesh cloth, then scrape it flat with a scraper, and then send it into an oven to be plasticized at 200°C to obtain the wear-resistant layer.

[0062] Step S02. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin powder, 30% of the third PVC paste resin powder, and 20% of the fourth PVC paste resin powder), 85 parts of plasticizer, 2.5 parts of stabilizer, 100 parts of filler, and 11 parts of foaming agent, stir and mix evenly, and when the viscosity is 52000 MPa·s, obtain the foaming layer slurry; then coat the foaming layer slurry on the second mesh cloth, scrape it flat with a scraper, and then send it into an oven to be shaped at 160°C to obtain the preliminary blank layer.

[0063] Step S03. Compound the wear-resistant layer with the preliminary blank layer, and then send it into a foaming chamber for foaming. The temperature in the foaming chamber is: 198°C in zone 1, 218°C in zone 2, 218°C in zone 3, and 90°C in zone 4; after foaming, cool and wind up to obtain the wear-resistant and scratch-resistant yoga mat.

[0064] Example 2

[0065] A wear-resistant and scratch-resistant yoga mat, which includes a foaming layer and a net-shaped wear-resistant layer arranged on the foaming layer. The wear-resistant layer consists of a first mesh cloth and square wear-resistant blocks attached to the net-shaped nodes of the first mesh cloth. Square mesh holes with the same size and shape as the wear-resistant blocks are formed between the wear-resistant blocks, and the foaming layer is exposed on the surface through the mesh holes. The side length of the wear-resistant blocks and the mesh holes is 3 mm. The grammage of the wear-resistant layer is 320 g / m 2 , the grammage of the foaming layer is 950 g / m 2 .

[0066] The wear-resistant and scratch-resistant yoga mat is prepared by the following steps:

[0067] Step S01. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin and 50% of the second PVC paste resin powder or the third PVC paste resin powder), 80 parts of plasticizer, 2 parts of stabilizer, and 80 parts of filler, stir and mix evenly, measure its viscosity, and when the viscosity is 220 MPa·s, obtain the wear-resistant layer slurry; apply the wear-resistant layer slurry on the first mesh cloth, then scrape it flat with a scraper, and then send it into an oven to be plasticized at 200 °C to obtain the wear-resistant layer.

[0068] Step S02. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin powder, 30% of the third PVC paste resin powder, and 20% of the fourth PVC paste resin powder), 80 parts of plasticizer, 2 parts of stabilizer, 80 parts of filler, and 10 parts of foaming agent, stir and mix evenly, and when the viscosity is 40000 MPa·s, obtain the foaming layer slurry; then apply the foaming layer slurry on the second mesh cloth, scrape it flat with a scraper, and then send it into an oven to be shaped at 160 °C to obtain the initial blank layer.

[0069] Step S03. Combine the wear-resistant layer with the initial blank layer, and then send it into a foaming chamber for foaming. The temperature in the foaming chamber is: 195 °C in zone 1, 220 °C in zone 2, 220 °C in zone 3, and 90 °C in zone 4; after foaming, cool and wind up to obtain a wear-resistant and scratch-resistant yoga mat.

[0070] Example 3

[0071] A wear-resistant and scratch-resistant yoga mat, which includes a foaming layer and a mesh-shaped wear-resistant layer provided on the foaming layer. The wear-resistant layer consists of a first mesh cloth and square wear-resistant blocks attached to the mesh nodes of the first mesh cloth. Square mesh holes with the same size and shape as the wear-resistant blocks are formed between the wear-resistant blocks, and the foaming layer is exposed on the surface through the mesh holes. The side length of the wear-resistant blocks and the mesh holes is 5 mm. The gram weight of the wear-resistant layer is 340 g / m 2 and the gram weight of the foaming layer is 980 g / m 2

[0072] The wear-resistant and scratch-resistant yoga mat is prepared by the following steps:

[0073] Step S01. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin and 50% of the second PVC paste resin powder or the third PVC paste resin powder), 90 parts of plasticizer, 3 parts of stabilizer, and 100 parts of filler, stir and mix evenly, measure its viscosity, and when the viscosity is 500 MPa·s, obtain the wear-resistant layer slurry; apply the wear-resistant layer slurry on the first mesh cloth, then scrape it flat with a scraper, and then send it into an oven to be plasticized at 200 °C to obtain the wear-resistant layer.

[0074] Step S02. By weight, take 100 parts of PVC resin powder (including 50% of the first PVC paste resin powder, 30% of the third PVC paste resin powder, and 20% of the fourth PVC paste resin powder), 90 parts of plasticizer, 3 parts of stabilizer, 120 parts of filler, and 12 parts of foaming agent, stir and mix evenly. When the viscosity is 60000 MPa.s, obtain the foaming layer slurry; then apply the foaming layer slurry on the second mesh fabric, scrape it flat with a scraper, and then send it into an oven to be shaped at 160 °C to obtain the preliminary blank layer.

[0075] Step S03. Compound the wear-resistant layer on the preliminary blank layer, and then send it into a foaming chamber for foaming. The temperature in the foaming chamber is: 200 °C in the first zone, 215 °C in the second zone, 215 °C in the third zone, 85 °C or below in the fourth zone; after foaming, cool and wind up to obtain a wear-resistant and scratch-resistant yoga mat.

[0076] Example 4

[0077] A wear-resistant and scratch-resistant yoga mat, which includes a foaming layer and a mesh-shaped wear-resistant layer provided on the foaming layer. The wear-resistant layer consists of a first mesh fabric and diamond-shaped wear-resistant blocks attached to the mesh nodes of the first mesh fabric. Diamond-shaped mesh holes of the same size and shape as the wear-resistant blocks are formed between the wear-resistant blocks, and the foaming layer is exposed on the surface through the mesh holes. The side length of the wear-resistant blocks and the mesh holes is 4 mm. The gram weight of the wear-resistant layer is 330 g / m 2 and the gram weight of the foaming layer is 965 g / m 2 .

[0078] The preparation method of the wear-resistant and scratch-resistant yoga mat is the same as that of Example 1.

[0079] Example 5

[0080] A wear-resistant and scratch-resistant yoga mat, which includes a foaming layer and a mesh-shaped wear-resistant layer provided on the foaming layer. The wear-resistant layer consists of a first mesh fabric and oval wear-resistant blocks attached to the mesh nodes of the first mesh fabric. Mesh holes are formed between the wear-resistant blocks, and the foaming layer is exposed on the surface through the mesh holes. The area of the wear-resistant blocks accounts for 70% of the area of the wear-resistant layer, and the mesh holes account for 30% of the area of the wear-resistant layer. The gram weight of the wear-resistant layer is 340 g / m 2 and the gram weight of the foaming layer is 965 g / m 2 .

[0081] The preparation method of the wear-resistant and scratch-resistant yoga mat is basically the same as that of Example 1, except that in Step S01, the filler used is 30 parts of calcium carbonate and 60 parts of tourmaline.

[0082] Comparative Example 1

[0083] A yoga mat, which only has a foaming layer, and the gram weight of the foaming layer is 965 g / m 2。The foaming layer slurry is the same as that in Example 1. During preparation, the foaming layer slurry with a viscosity of 52000 MPa·s is coated on the mesh fabric, and then foamed in an oven. The foaming temperature is: Zone 1 at 198 °C, Zone 2 at 218 °C, Zone 3 at 218 °C, and Zone 4 at 90 °C; after foaming, it is cooled and wound to obtain a yoga mat.

[0084] Comparative Example 2

[0085] A yoga mat, comprising a foaming layer and a wear-resistant layer laminated on the foaming layer. The wear-resistant layer is a thin-film TPE film with a grammage of 340 g / m 2 , and the grammage of the foaming layer is 965 g / m 2 .

[0086] Comparative Example 3

[0087] A yoga mat, comprising a foaming layer and a PVC calendered film laminated on the foaming layer. The grammage of the PVC calendered film is 100 g / m 2 , and the grammage of the foaming layer is 965 g / m 2 . The PVC calendered film comprises, by weight parts: 100 parts of PVC resin powder, 60 parts of DOTP plasticizer, 3 parts of potassium zinc stabilizer, 7 parts of nano calcium carbonate, and 10 parts of porous PVC. The PVC calendered film is calendered into a film by calendering equipment. The slurry used for the foaming layer is the same as that in Example 1. During preparation, the foaming layer slurry with a viscosity of 52000 MPa·s is coated on the mesh fabric, first shaped in an oven, then the PVC calendered film is laminated thereon, and then foamed in an oven. The foaming temperature is: Zone 1 at 198 °C, Zone 2 at 218 °C, Zone 3 at 218 °C, and Zone 4 at 90 °C; after foaming, it is cooled and wound to obtain a yoga mat.

[0088] The yoga mats described in Examples 1 - 5 and Comparative Examples 1 - 3 were subjected to performance tests. The test items included static friction coefficient test, wear and scratch resistance test, and resilience test. Among them, the static friction coefficient test was carried out according to the standard ASTM - F609, the wear and scratch resistance test was carried out according to the ASTM D4966 - 12(2016) standard, and the resilience test was carried out using an elasticity testing machine. The specific test results are shown in Table 1.

[0089] Table 1. Performance test results

[0090] Item Coefficient of static friction F / n Wear rate % (front side) at 500 revolutions Resilience % Example 1 1.09 0.83％ 28％ Example 2 1.03 0.85％ 27％ Example 3 1.12 0.8％ 29％ Example 4 1.07 0.82％ 28％ Example 5 1.15 0.88％ 28％ Comparative Example 1 0.61 9.12％ 26％ Comparative Example 2 0.91 0.95％ 27％ Comparative Example 3 0.59 2.2％ 26％

[0091] As can be seen from Table 1, the static friction coefficient, wear rate and resilience of the yoga mats described in Examples 1-5 are all better, indicating that the yoga mats prepared from Examples 1-5 have good anti-slip, wear-resistant, scratch-resistant and resilient properties, which can meet the user's requirements for wear and scratch resistance. For Comparative Example 1 without a wear-resistant layer, its static friction coefficient is only 0.61 and its wear rate is as high as 9.12%, showing very poor wear and scratch resistance. In Comparative Example 2, a TPE film is used as the wear-resistant layer, and its static friction coefficient and wear resistance are both better, but its cost is high. Under the same gram weight of the wear-resistant layer, its cost is more than twice that of Example 1. Moreover, since the TPE film completely covers the foaming layer, its apparent color is the color of the TPE film, and it does not have a massage effect and has poor bending properties. Comparative Example 3 also uses a PVC calendered film as the wear-resistant layer. Due to the smooth surface of the calendered film, the static friction coefficient is low and it does not have an anti-slip effect. Although the wear resistance of the calendered film is also good, it can only be achieved through special calendering equipment, and additional equipment is required during production. In addition, when the thickness of the PVC calendered film is relatively thick, there is also the defect of poor bending effect.

[0092] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A preparation method of an abrasion-resistant and scratch-resistant yoga mat, characterized in that, The wear-resistant and scratch-resistant yoga mat includes: A foaming layer, which is arranged at the bottom and is made of a second mesh cloth and foaming layer slurry; A wear-resistant layer, which is laminated on the foaming layer, is a mesh structure, and is composed of a first mesh cloth and wear-resistant blocks arrayed and attached to the first mesh cloth, and mesh holes are formed between adjacent two wear-resistant blocks; Part of the wear-resistant block is embedded in the foaming layer, and part of it protrudes upward to form bump points; the upper surface of part of the foaming layer is exposed through the mesh holes; the wear-resistant block is prepared from PVC resin powder, plasticizer, stabilizer and filler; The method includes: Step S01. Coating wear-resistant layer slurry on the first mesh cloth, and obtaining a wear-resistant layer with a mesh structure after plasticization; Step S02. Coating foaming layer slurry on the second mesh cloth, and obtaining a preliminary blank layer after curing and shaping; Step S03. Laminating the wear-resistant layer on the preliminary blank layer, and obtaining a wear-resistant and scratch-resistant yoga mat after foaming.

2. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 1, characterized in that, In the step S01, the first mesh cloth is woven by warp and weft. Each warp is composed of two 150D yarns, and each weft is composed of at least four or more 150D yarns, and mesh nodes are formed at the intersection of the warp and weft; the mesh nodes are square, diamond or oval weaving structures.

3. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 1, characterized in that, By weight, the wear-resistant layer slurry includes: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-100 parts of filler; by weight, the foaming layer slurry includes: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, 10-12 parts of foaming agent.

4. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 3, characterized in that, The PVC resin powder includes two or three of the first PVC paste resin powder, the second PVC paste resin powder, the third PVC paste resin powder, and the fourth PVC paste resin powder. The polymerization degree of the first PVC paste resin powder is 1100, the polymerization degree of the second PVC paste resin powder is 950, the polymerization degree of the third PVC paste resin powder is 1060, and the polymerization degree of the fourth PVC paste resin powder is 1300.

5. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 1, characterized in that, In the step S01, the viscosity of the wear-resistant layer slurry is 220-500 MPa·s.

6. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 1, characterized in that, In the step S02, the viscosity of the foaming layer slurry is 40000-60000 MPa·s.

7. The preparation method of the wear-resistant and scratch-resistant yoga mat according to claim 1, characterized in that, In the step S03, the foaming temperature is: 195-200 °C in the first zone, 215-220 °C in the second zone, 215-220 °C in the third zone, and 90 °C or below in the fourth zone.

8. A wear-resistant and scratch-resistant yoga mat, prepared by the method according to any one of claims 1-7, characterized in that, Includes: A foaming layer, which is arranged at the bottom and is made of a second mesh cloth and foaming layer slurry; A wear-resistant layer, which is laminated on the foaming layer, is a mesh structure, and is composed of a first mesh cloth and wear-resistant blocks arrayed and attached to the first mesh cloth, and mesh holes are formed between adjacent two wear-resistant blocks; Part of the wear-resistant block is embedded in the foaming layer, and part of it protrudes upward to form bump points; the upper surface of part of the foaming layer is exposed through the mesh holes; the wear-resistant block is prepared from PVC resin powder, plasticizer, stabilizer and filler.

9. The wear-resistant and scratch-resistant yoga mat according to claim 8, characterized in that, The wear-resistant block is one of a diamond, square or oval structure.

10. The wear-resistant and scratch-resistant yoga mat according to claim 8, wherein, The projected area of the wear-resistant block is the same as that of the mesh hole.

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