A waterproof, breathable, antibacterial shoe upper fabric

Abstract

The utility model discloses a waterproof and breathable antibacterial fabric for vamp, which comprises a breathable surface layer and a breathable lining cloth. The inside of the breathable surface layer is coated with a liquid rubber coating. The breathable surface layer and the liquid rubber coating are punctured to form densely distributed conical micropores. The cross-sectional area of the micropores gradually decreases from the inside to the outside. The breathable surface layer and the breathable lining cloth are bonded by glue. The breathable lining cloth is coated with a quaternary ammonium polyethylene imine zinc oxide or cuprous oxide particle solution coating. The conical micropores are opened in the liquid rubber coating. When the inside gas expands and generates pressure on the inside opening of the conical micropores, the pressure formed at the opening of the conical micropores is transmitted to the front end to form strong air pressure, and the front end of the conical micropores is opened under pressure. Conversely, liquid cannot enter from the front end of the conical micropores, forming an efficient waterproof and breathable effect. The breathable lining cloth is coated with a quaternary ammonium polyethylene imine zinc oxide or cuprous oxide particle solution coating, which has good antibacterial effect and is beneficial to foot health.

Description

Technical Field

[0001] This utility model relates to a waterproof, breathable, and antibacterial fabric for shoe uppers. Background Technology

[0002] Utility model patent CN112297575A discloses a waterproof and breathable fabric for shoe uppers and its preparation method. The fabric comprises an inner layer and an outer layer. The inner layer is a chemical fiber blended fabric, and the outer layer is a breathable fabric. The inner and outer layers are bonded together with an adhesive. The yarn of the outer layer is treated with a waterproof and breathable coating. The waterproof and breathable coating is prepared from polyethylene oxide, mica powder, and magnesium lauryl sulfate. The preparation method involves treating the breathable fabric with the waterproof and breathable coating, then applying a thin layer of adhesive to one side of the chemical fiber blended fabric, and finally heat-sealing the breathable fabric and the chemical fiber blended fabric together using a heat-sealing device. This fabric exhibits both high waterproof and breathable performance. While the waterproof and breathable function of this shoe upper fabric primarily relies on the outer yarn being treated with a waterproof and breathable coating, its breathability is relatively low, and it cannot prevent most moisture from entering during heavy rainfall. Furthermore, it lacks antibacterial properties and is difficult to inhibit fungal growth. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a waterproof, breathable and antibacterial fabric for shoe uppers with greater breathability and better waterproof performance. The technical problem to be solved by this utility model also includes providing a processing method for the above-mentioned waterproof, breathable and antibacterial fabric for shoe uppers.

[0004] Therefore, this utility model is implemented using the following technical solution:

[0005] Preferably, the waterproof, breathable, and antibacterial fabric for the shoe upper includes a breathable outer layer and a breathable lining. The inner side of the breathable outer layer is coated with a liquid rubber coating. The composite layer of the breathable outer layer and the liquid rubber coating is punctured from the inside out to form densely distributed cone-shaped micropores. The cross-sectional area of ​​the cone-shaped micropores gradually decreases from the inside out. The breathable outer layer with the liquid rubber coating and the breathable lining are bonded together with adhesive. The breathable lining is coated with a quaternized polyethyleneimine zinc oxide or cuprous oxide particle solution coating.

[0006] Preferably, the conical micropore is a conical pore.

[0007] Preferably, the cone-shaped micropore is a multi-faceted cone-shaped pore.

[0008] Preferably, the breathable lining is a thin layer of waterproof, breathable, and antibacterial fabric for the shoe upper.

[0009] Preferably, the breathable lining fabric is formed by blending spandex and polyester and impregnating with waterproof material.

[0010] Preferably, the cone-shaped micropore includes a front cone-shaped portion and a rear expansion portion, with the expansion portion opening backward in an arc shape.

[0011] Preferably, the included angle at the lower end of the conical cross-section of the cone-shaped micropore is 20°-30°, and the height of the cone-shaped micropore is 0.8-1.2 cm.

[0012] Preferably, the included angle at the lower end of the conical cross-section of the tapered micropore is 28°, and the height of the tapered micropore is 1 cm.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] 1. Because the conical micropores are formed within the liquid rubber coating, they remain closed under normal conditions due to the elastic compression of the coating. Only when the waterproof, breathable, and antibacterial fabric of the upper is used as the shoe upper material does the internal gas expand due to compression or heat, creating pressure on the open sides of the conical micropores. This pressure is transmitted to the front end, forming a strong air pressure. At this point, the front end of the conical micropores opens under pressure, expelling the internal gas. Conversely, liquid cannot enter through the front end of the conical micropores, thus achieving a highly efficient waterproof and breathable effect with a larger air release capacity.

[0015] 2. Because the breathable lining is coated with a quaternized polyethyleneimine zinc oxide or cuprous oxide particle solution coating, the formulation of which comes from the invention patent filed by the applicant in 2022 with patent number 202211673934.2 and title "Preparation method and application of quaternized polyethyleneimine zinc oxide or cuprous oxide particles", the shoe upper has antibacterial function through the setting of this new antibacterial coating, which can inhibit the growth of fungi.

[0016] 3. The cone-shaped micropores formed in the liquid rubber coating of this application have a better waterproof effect for larger rainfall, but the addition of a breathable lining is required to prevent water penetration. The breathable lining in this application is a thin-layer waterproof, breathable and antibacterial fabric for the shoe upper. This waterproof, breathable and antibacterial fabric for the shoe upper is formed by impregnation with a waterproofing agent of the self-developed formula and by a self-developed method, which can better prevent water from entering, thereby forming two waterproof and breathable layers inside and out, achieving a better waterproof effect while maintaining a large air release capacity.

[0017] 4. The applied cone-shaped micropore includes a cone-shaped part at the front and an expansion part at the rear. The expansion part opens backward in an arc shape, and the diameter of the expansion part is larger than the diameter of the corresponding position of the cone-shaped part extending backward. This structure is conducive to forming a larger pressure difference from the inner end to the outer end, increasing the pressure to discharge the internal gas.

[0018] 5. The included angle at the lower end of the conical axis section of the tapered micropore is 20°-30°, and the height of the tapered micropore is 0.8-1.2 cm. This structure is beneficial for the formed tapered micropore to maintain both good air venting and good waterproofing. The effect is best when the included angle at the lower end of the conical axis section of the tapered micropore is 28° and the height is 1 cm. Attached Figure Description

[0019] The present invention includes the following figures:

[0020] Figure 1 A schematic diagram of the structure of the waterproof, breathable, and antibacterial fabric for the shoe upper provided by this utility model.

[0021] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0022] Figure 3 for Figure 2 A magnified cross-sectional view of the local structure.

[0023] Figure 4 This is a partial structural enlarged cross-sectional view of the waterproof, breathable, and antibacterial fabric for the shoe upper provided in Embodiment 2 of this utility model. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Reference Figure 1-3 As shown, the waterproof, breathable, and antibacterial fabric for shoe uppers provided in Embodiment 1 of this utility model includes a breathable outer layer 1 and a breathable inner fabric 2. The inner side of the breathable outer layer 1 is coated with a liquid rubber coating 3. The composite layer of the breathable outer layer 1 and the liquid rubber coating 3 is punctured from the inside out to form densely distributed cone-shaped micropores 4. The cross-sectional area of ​​the cone-shaped micropores 4 gradually decreases from the inside out. In this embodiment, the cone-shaped micropores 4 are conical holes. The breathable outer layer 1 with the liquid rubber coating 3 and the breathable inner fabric 2 are bonded together with adhesive. The breathable inner fabric is coated with a quaternized polyethyleneimine zinc oxide or cuprous oxide particle solution coating 5.

[0026] Reference Figure 3 As shown, in order to improve the waterproof performance and maintain good breathability, the breathable lining 2 is a thin layer of waterproof, breathable and antibacterial fabric for the shoe upper. The breathable lining 2 is formed by blending spandex and polyester and impregnating with waterproof material.

[0027] Reference Figure 2 , Figure 3As shown, in order to increase the air pressure from the rear end to the front end of the cone-shaped micropore 4, the cone-shaped micropore includes a cone-shaped part 41 at the front and an expansion part 42 at the rear. The expansion part 42 opens backward in an arc shape, and the diameter of the expansion part 42 is larger than the diameter of the corresponding position of the cone part 41 extending backward.

[0028] Reference Figure 2 , Figure 3 As shown, in order to maintain both the breathability and waterproof performance of the conical micropores, the included angle 43 at the lower end of the conical axial section of the conical micropore 4 is 20°-30°, and the height of the conical micropore 4 is 0.8-1.2 cm. In this embodiment, it is preferred that the included angle 43 at the lower end of the conical axial section of the conical micropore 4 is 28°, and the height of the conical micropore 4 is 1 cm.

[0029] Reference Figure 1-3 As shown, the present invention provides a processing method for the above-mentioned waterproof, breathable, and antibacterial fabric for shoe uppers, comprising the following steps:

[0030] First, a liquid rubber coating 3 is applied to the inside of the breathable fabric using a coating mechanism, and the liquid rubber coating is allowed to solidify and stabilize.

[0031] Secondly, a needle-punching method is used to penetrate downwards from the liquid rubber coating 3 to form cone-shaped micropores 4;

[0032] Then, coat the breathable lining with...

[0033] Then, turn the breathable outer layer 1 fabric over and apply glue to the liquid rubber coating 3 to attach it to the breathable inner fabric 2.

[0034] Finally, wait for it to air dry or be dried.

[0035] Reference Figure 4 As shown, Embodiment 2 of this utility model is basically the same as Embodiment 1, except that: the cone-shaped micropore 4 is a multi-faceted pyramidal pore. In this embodiment, the cone-shaped micropore 4 is a triangular pyramidal pore. The multi-faceted pyramidal micropore is divided into multiple equal valves. The valves form a closed slit 45 after self-closing. The closed slit 45 is opened when the air pressure inside the fabric increases or when it is squeezed to release air. Its self-closing and opening air release effect is better.

[0036] The above embodiments can be modified and varied in many ways. Therefore, the above description should not be considered as a complete limitation, but only as a preferred example. Those skilled in the art can implement other construction schemes without departing from the scope and spirit of this application. In addition, those skilled in the art can also make other modifications within the scope and spirit of the appended features and advantages.

Claims

1. A waterproof, breathable, and antibacterial fabric for shoe uppers, comprising a breathable outer layer and a breathable lining, characterized in that: The inner side of the breathable surface layer is coated with a liquid rubber coating. The composite layer of the breathable surface layer and the liquid rubber coating is punctured from the inside to form densely distributed cone-shaped micropores. The cross-sectional area of ​​the cone-shaped micropores gradually decreases from the inside to the outside. The breathable surface layer with the liquid rubber coating is bonded to the breathable lining with adhesive. The breathable lining is coated with a quaternized polyethyleneimine zinc oxide or cuprous oxide particle solution coating.

2. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 1, characterized in that: The conical micropores are conical pores.

3. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 1, characterized in that: The cone-shaped micropores are multi-faceted cone pores.

4. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 1, 2, or 3, characterized in that: The breathable lining layer is made of waterproof, breathable, and antibacterial fabric used for the shoe upper.

5. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 4, characterized in that: The breathable lining is made of a blend of spandex and polyester, impregnated with waterproof material.

6. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 1, 2, or 3, characterized in that: The conical micropore includes a conical portion at the front and an expanding portion at the rear, with the expanding portion opening backward in an arc shape.

7. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 6, characterized in that: The cone-shaped micropore has a lower end angle of 20°-30° at its conical cross-section, and a height of 0.8-1.2 cm.

8. The waterproof, breathable, and antibacterial fabric for the shoe upper according to claim 7, characterized in that: The cone-shaped micropore has a lower end angle of 28° at its conical cross-section, and the height of the cone-shaped micropore is 1 cm.

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