Waterproof and anti-fouling sports shoes

Abstract

The utility model provides a pair of waterproof and antifouling sports shoes, which relates to the technical field of sports shoes, and comprises soles, vamps and toe caps, the vamps comprise outer waterproof and antifouling layers, middle dynamic breathable adjusting layers and inner antibacterial and deodorant layers, the outer waterproof anti-fouling layer is formed by compounding and weaving high-density nylon fibers and nanoscale silicon dioxide particles, the middle dynamic breathable adjusting layer comprises a bionic honeycomb structure, and an elastic TPU film is arranged on the inner wall of the bionic honeycomb structure. The vamp is formed by compounding and weaving the high-density nylon fibers and the nanoscale silicon dioxide particles through the 3D weaving technology, the surfaces of the fibers are subjected to plasma treatment to form a micro-nanoscale coarse structure, the lotus leaf effect super-hydrophobic surface is achieved in combination with the low surface energy characteristic of the silicon dioxide particles, meanwhile, the porosity is controlled through weaving, and the surface smoothness of the vamp is improved. The waterproof performance can be improved while proper ventilation is kept, and an additional coating is not needed.

Description

Technical Field

[0001] This utility model relates to the field of sports shoe technology, specifically to a waterproof and stain-resistant sports shoe. Background Technology

[0002] Athletic shoes are designed and manufactured based on the characteristics of people participating in sports or travel, and have a variety of functions and features. Their soles generally use special rubber or foam materials, such as EVA, MD, and TPU, to provide good elasticity and shock absorption, effectively reducing the impact of the ground on the feet during exercise and protecting joints and bones. The uppers are usually made of breathable mesh fabric, synthetic leather, and other materials to ensure that the feet can breathe fully and stay dry during exercise. Athletic shoes also have different designs depending on the sport; for example, basketball shoes emphasize ankle support and stability, soccer shoes have unique stud designs to increase traction, and running shoes emphasize lightweight and smooth stride transitions.

[0003] Traditional waterproof shoe uppers often use a film-coating process to increase waterproofness, but this often leads to a contradiction between waterproof and breathable functions. At the same time, antibacterial and odor-resistant properties often rely on additives, lack long-lasting effects, and suffer from poor breathability and insufficient durability, making it difficult to meet the needs of complex scenarios. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a waterproof and stain-resistant sports shoe.

[0005] To achieve this technical objective, the present invention provides a waterproof and stain-resistant sports shoe, comprising a sole, an upper, and a toe. The upper comprises an outer waterproof and stain-resistant layer, a middle dynamic breathability adjustment layer, and an inner antibacterial and odor-resistant layer. The outer waterproof and stain-resistant layer is composed of a composite weave of high-density nylon fibers and nano-sized silica particles. The middle dynamic breathability adjustment layer comprises a biomimetic honeycomb structure, and the inner wall of the biomimetic honeycomb structure is provided with an elastic TPU membrane.

[0006] Preferably, an air chamber is provided between adjacent biomimetic honeycomb structures, and PCM microcapsules are disposed in the air chamber.

[0007] Preferably, the inner antibacterial and deodorizing layer comprises bamboo charcoal fiber blended nonwoven fabric and zinc oxide nanofibers, with zinc oxide nanofibers disposed on the lower surface of the bamboo charcoal fiber blended nonwoven fabric.

[0008] Preferably, both the toe and heel of the shoe are provided with TPU reinforcing strips, and the TPU reinforcing strips are provided with graphene nanosheets.

[0009] Preferably, the TPU reinforcing strip is U-shaped; Beneficial effects

[0010] This invention features a shoe upper made of 3D three-dimensional weaving technology, which is formed by composite weaving of high-density nylon fibers and nano-sized silica particles. The fiber surface is plasma-treated to form a micro-nano-sized rough structure. Combined with the low surface energy characteristics of silica particles, a lotus leaf effect superhydrophobic surface is achieved. At the same time, the porosity is controlled by weaving to maintain moderate breathability and enhance waterproofness and stain resistance without the need for additional coatings.

[0011] When the foot temperature rises, the air in the air chamber expands, pushing the elastic TPU membrane outward to open the vents. When the temperature drops, the elastic TPU membrane returns to its original position and closes, achieving adaptive ventilation.

[0012] This product uses a bamboo charcoal fiber blended nonwoven fabric, with zinc oxide nanocrystals loaded inside the fibers through twin-screw melt spinning technology. The zinc oxide nanocrystals release zinc ions in humid environments, disrupting bacterial cell membranes and exhibiting high antibacterial rates against Escherichia coli and Staphylococcus aureus. Furthermore, the porous structure of the bamboo charcoal fiber blended nonwoven fabric adsorbs odor molecules, and combined with the cationic properties of chitosan to neutralize acidic substances, it achieves a dual deodorizing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shoe upper according to this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged view of point a in the middle;

[0016] Figure 4 This is a schematic diagram of the internal structure of the shoe toe of this utility model.

[0017] The components include: 1. Sole; 2. Upper; 21. Outer waterproof and stain-resistant layer; 201. High-density nylon fiber; 202. Nanoscale silica particles; 22. Middle layer dynamic breathability adjustment layer; 203. Bionic honeycomb structure; 204. Elastic TPU membrane; 205. Air chamber; 206. PCM microcapsules; 23. Inner antibacterial and deodorizing layer; 207. Bamboo charcoal fiber blended non-woven fabric; 208. Zinc oxide nanofibers; 3. Toe; 31. TPU reinforcing strip; 32. Graphene nanosheets. Detailed Implementation

[0018] The utility model of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. In order to provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; other embodiments obtained based on the content described in this application without creative effort are all within the scope of protection of this utility model.

[0019] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of clearly describing this embodiment, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] like Figures 1 to 4 As shown, this embodiment of the invention provides a waterproof and stain-resistant sports shoe, including a sole 1, an upper 2, and a toe 3. The upper 2 includes an outer waterproof and stain-resistant layer 21, a middle dynamic breathability adjustment layer 22, and an inner antibacterial and deodorizing layer 23. The outer waterproof and stain-resistant layer 21 is composed of a composite weave of high-density nylon fiber 201 and nano-sized silica particles 202. The middle dynamic breathability adjustment layer 22 includes a biomimetic honeycomb structure 203, and an elastic TPU membrane 204 is provided on the inner wall of the biomimetic honeycomb structure 203. The upper 2 uses 3D three-dimensional weaving technology, which is formed by composite weaving of high-density nylon fiber 201 and nano-sized silica particles 202. The fiber surface is plasma treated to form a micro-nano-level rough structure. Combined with the low surface energy characteristics of silica particles, a lotus leaf effect superhydrophobic surface is achieved (contact angle > 150°, roll-off angle < 5°). At the same time, by controlling the weaving porosity (11-16%), moderate breathability is maintained, which can also enhance waterproofness and stain resistance. The waterproof performance is such that the contact angle is still > 132° after 50 washes.

[0021] The biomimetic honeycomb structure 203 consists of an array of air chambers 205, each separated by an elastic TPU membrane 204. The bottom connects to the inner space of the sole 1, and the top connects to the outer waterproof and stain-resistant layer 21. This athletic shoe uses a hot-melt adhesive film-based glue-free seam technology between each layer, forming a wavy weld seam through laser welding. This ensures interlayer bonding strength (peel strength > 5 N / cm) while also reserving space for structural deformation, preventing interlayer peeling during exercise and improving stability.

[0022] When the foot temperature rises, the air in the air chamber 205 expands, pushing the elastic TPU membrane 204 outward to open the vent (0.4-0.55mm in diameter); when the temperature drops, the elastic TPU membrane 204 returns to its original position and closes, achieving adaptive ventilation.

[0023] It should be noted that the 204 elastic TPU film can be manufactured using heat pressing, adhesive bonding, ultrasonic welding, and injection molding technologies.

[0024] Hot-press bonding: The elastic TPU film 204 is cut to a suitable size and shape to match the inner wall of the biomimetic honeycomb structure 203. Then, through a hot-pressing process, under certain temperature, pressure, and time conditions, the elastic TPU film 204 and the material of the biomimetic honeycomb structure 203 are tightly bonded together. For example, in the production of some sports shoes, the elastic TPU film 204 is placed inside a mold of the biomimetic honeycomb structure 203, and both are placed together in a hot press. The mixture is held at a temperature of approximately 100℃-150℃ and under certain pressure for several minutes to achieve a strong bond between the elastic TPU film 204 and the inner wall of the biomimetic honeycomb structure 203.

[0025] Adhesive bonding: Select a suitable adhesive, such as polyurethane adhesive, and apply it evenly to the inner wall of the biomimetic honeycomb structure 203 or the elastic TPU film 204. Then, accurately place the elastic TPU film 204 on the inner wall of the biomimetic honeycomb structure 203 and apply a certain pressure to allow the adhesive to fully function and fix the elastic TPU film 204. Taking the biomimetic honeycomb structure 203 of the sports shoe sole 1 as an example, a thin and uniform layer of adhesive can be applied to the inner wall of the honeycomb first, and then the elastic TPU film 204 can be attached. Apply appropriate pressure with a clamp or mold. After the adhesive cures, the elastic TPU film 204 will be firmly attached to the inner wall of the biomimetic honeycomb structure 203.

[0026] Ultrasonic welding: Utilizing the high-frequency vibration energy of ultrasound, heat is generated at the contact interface between the elastic TPU film 204 and the inner wall of the biomimetic honeycomb structure 203, thereby melting the material surfaces of the elastic TPU film 204 and the biomimetic honeycomb structure 203, achieving a welded bond. In actual operation, the elastic TPU film 204 is placed over the inner wall of the biomimetic honeycomb structure 203, and the welding head of the ultrasonic welding equipment scans and welds the joint. The placement of the elastic TPU film 204 is completed in a short time, ensuring high welding strength and precision.

[0027] Injection molding: When manufacturing the biomimetic honeycomb structure 203, an injection molding process is used to directly inject the elastic TPU film 204 into the mold of the biomimetic honeycomb structure 203, forming an elastic TPU film 204 that is tightly bonded to the inner wall of the biomimetic honeycomb structure 203 within the mold. For example, when designing the biomimetic honeycomb structure 203 in a new type of sports shoe, the mold containing the position of the elastic TPU film 204 can be designed first. During the injection molding process, the main material for forming the biomimetic honeycomb structure 203 is injected first, and then TPU material is injected at an appropriate time, allowing it to solidify and form an integrated structure on the inner wall of the biomimetic honeycomb structure 203.

[0028] refer to Figure 3Air chambers 205 are arranged between adjacent biomimetic honeycomb structures 203, and PCM microcapsules 206 are disposed within the air chambers 205. The PCM microcapsules 206, a phase change material, are embedded in the walls of the air chambers 205. Through solid-liquid phase change, they absorb / release heat, maintaining the temperature inside the shoe within the range of 23-26℃, thus improving wearing comfort. The energy storage density of the phase change material is >150J / g, and it can maintain a constant temperature for 2-3 hours.

[0029] refer to Figure 3 The inner antibacterial and deodorizing layer 23 comprises bamboo charcoal fiber blended nonwoven fabric 207 and zinc oxide nanofibers 208, with zinc oxide nanofibers 208 disposed on the lower surface of the bamboo charcoal fiber blended nonwoven fabric 207. Zinc oxide nanofibers 208 are loaded inside the bamboo charcoal fiber blended nonwoven fabric 207 using twin-screw melt spinning technology. Antibacterial mechanism: Zinc oxide nanofibers 208 release zinc ions in a humid environment, disrupting bacterial cell membranes, achieving an inhibition rate of >99% against Escherichia coli and Staphylococcus aureus; the porous structure of the bamboo charcoal fiber blended nonwoven fabric 207 adsorbs odor molecules, and the cationic properties of chitosan neutralize acidic substances, achieving a dual deodorizing effect; the zinc oxide nanofibers 208 loading is 0.8-1.2 wt%, and the antibacterial function lasts for more than 280 hours;

[0030] refer to Figure 1 and Figure 4 The toe and heel are both equipped with TPU reinforcing strips 31, and graphene nanosheets 32 are incorporated into the TPU reinforcing strips 31 through melt blending technology. The TPU reinforcing strips 31 are U-shaped. The TPU reinforcing strips 31 are usually placed on the front or side of the shoe body and the toe, and can be linked with the shoelace system to enhance the shoe's wrapping performance, provide better fixation and support for the foot, and reduce foot sway during exercise.

[0031] Working principle: The upper 2 adopts 3D three-dimensional weaving technology, which is formed by composite weaving of high-density nylon fiber 201 and nano-sized silica particles 202. The fiber surface is plasma treated to form a micro-nano-level rough structure. Combined with the low surface energy characteristics of silica particles, a lotus leaf effect superhydrophobic surface is achieved. At the same time, the porosity is controlled by weaving to maintain moderate breathability and enhance waterproofness without the need for additional coatings.

[0032] When the foot temperature rises, the air in the air chamber 205 expands and pushes the elastic TPU membrane 204 outward to open the vent. When the temperature drops, the elastic TPU membrane 204 returns to its original position and closes, achieving adaptive ventilation.

[0033] The bamboo charcoal fiber blended nonwoven fabric 207 is used, and zinc oxide nanofibers 208 are loaded inside the fibers through twin-screw melt spinning technology. The zinc oxide nanofibers 208 release zinc ions in humid environments, disrupting bacterial cell membranes and exhibiting high antibacterial rates against Escherichia coli and Staphylococcus aureus. Furthermore, the porous structure of the bamboo charcoal fiber blended nonwoven fabric 207 adsorbs odor molecules, and combined with the cationic properties of chitosan to neutralize acidic substances, it achieves a dual deodorizing effect.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A waterproof and stain-resistant sports shoe, comprising a sole (1), an upper (2), and a toe (3), characterized in that: The upper (2) includes an outer waterproof and stain-resistant layer (21), a middle dynamic breathability adjustment layer (22) and an inner antibacterial and deodorizing layer (23). The outer waterproof and stain-resistant layer (21) is composed of high-density nylon fiber (201) and nano-sized silica particles (202) in a composite weave. The middle dynamic breathable adjustment layer (22) includes a biomimetic honeycomb structure (203), and the inner wall of the biomimetic honeycomb structure (203) is provided with an elastic TPU film (204).

2. The waterproof and stain-resistant sports shoe according to claim 1, characterized in that: An air chamber (205) is provided between adjacent biomimetic honeycomb structures (203), and a PCM microcapsule (206) is provided in the air chamber (205).

3. The waterproof and stain-resistant sports shoe according to claim 1, characterized in that: The inner antibacterial and deodorizing layer (23) includes bamboo charcoal fiber blended nonwoven fabric (207) and zinc oxide nanofibers (208), with zinc oxide nanofibers (208) disposed on the lower surface of the bamboo charcoal fiber blended nonwoven fabric (207).

4. The waterproof and stain-resistant sports shoe according to claim 1, characterized in that: The toe (3) and heel are both provided with TPU reinforcing strips (31), and graphene nanosheets (32) are provided inside the TPU reinforcing strips (31).

5. The waterproof and stain-resistant sports shoe according to claim 4, characterized in that: The TPU reinforcing strip (31) is U-shaped.

Images