An antibacterial, mildew-resistant, self-cleaning car carpet

Abstract

This utility model discloses an antibacterial and mildew-proof self-cleaning car carpet, comprising: an anti-slip bottom layer with evenly spaced barbed protrusions at the bottom; an absorbent layer on the outer side of the anti-slip bottom layer, the density of which gradually decreases from top to bottom; a gentle slope of 1° to 5° forming around the perimeter of the absorbent layer with its center as the highest point; several drainage channels on the gentle slope; and drainage holes that cooperate with the drainage channels on the sides of the absorbent layer; an antibacterial and mildew-proof layer on the outer side of the absorbent layer; and a surface functional layer on the outer side of the antibacterial and mildew-proof layer. This utility model, by constructing a multi-layered composite structure including an anti-slip bottom layer, a gradient-density absorbent layer, an antibacterial and mildew-proof layer, and a surface functional layer, utilizes the synergistic effect of the barbed protrusions for enhanced fixation, the gradient density and gentle slope promoting directional liquid penetration and flow, and the hydrophobic drainage channels and drainage holes forming a highly efficient drainage system, to significantly improve liquid management efficiency and fundamentally inhibit the growth of bacteria and mold.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically, it relates to an antibacterial, mildew-proof, and self-cleaning automotive carpet. Background Technology

[0002] As an important component of automotive interiors, car carpets not only decorate the cabin but also need to possess basic properties such as slip resistance, water absorption, and wear resistance to ensure the safety and comfort of passengers. However, traditional car carpets have gradually revealed many unavoidable problems in actual use, failing to meet consumers' demands for high-quality automotive interiors. In terms of anti-slip performance, most traditional car carpets use only ordinary rubber material as the bottom layer and do not have a special anti-slip structure. During vehicle operation, especially during rapid acceleration, sudden braking or turning, the carpet is prone to sliding relative to the car floor, which not only affects the comfort of the driver and passengers' feet, but may also interfere with driving operations, posing certain safety hazards. In terms of water absorption and moisture wicking, traditional car carpets typically have a single-density absorbent layer with limited absorption capacity and lack effective drainage design. When water enters the car, it tends to accumulate inside the carpet and is difficult to drain quickly. Furthermore, the relatively enclosed space inside a car, coupled with its high temperature and humidity, easily leads to the growth of bacteria and mold on the carpet, producing unpleasant odors. This not only affects the air quality inside the car but may also cause respiratory discomfort and other health problems for passengers. Meanwhile, traditional car carpets are difficult to clean. Moisture, dust, and stains accumulated inside the carpet are difficult to remove completely through conventional cleaning methods. After long-term use, the appearance and performance of the carpet will deteriorate significantly, requiring frequent replacement and increasing the user's operating costs. While some existing technologies attempt to improve automotive carpets, such as adding simple anti-slip patterns to the base layer or adding antibacterial agents to the surface, these improvements often only address single problems and fail to optimize the overall structure. For example, anti-slip patterns offer limited protection and easily trap dirt; surface antibacterial agents are prone to loss over long-term use, making their antibacterial and anti-mildew effects unsustainable, and failing to fundamentally solve the many shortcomings of traditional automotive carpets. Therefore, developing an automotive carpet that combines excellent anti-slip performance, efficient water absorption and wicking capabilities, long-lasting antibacterial and anti-mildew effects, and ease of cleaning has become a pressing issue in the automotive interior design field. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide an antibacterial, mildew-proof, and self-cleaning car carpet that solves the problems of traditional car carpets being prone to bacterial and mold growth and difficult to clean. To solve the above-mentioned technical problems, this utility model discloses an antibacterial and mildew-proof self-cleaning car carpet, comprising: an anti-slip bottom layer, the bottom of which is provided with evenly spaced barbed protrusions; an absorbent layer on the outside of the anti-slip bottom layer, the density of which gradually decreases from top to bottom; the absorbent layer having a gentle slope of 1° to 5° from its center to the surrounding edges; a plurality of drainage channels on the gentle slope; drainage holes that cooperate with the drainage channels on the side of the absorbent layer; and a closable sealing plug on the drainage holes; an antibacterial and mildew-proof layer on the outside of the absorbent layer; and a surface functional layer on the outside of the antibacterial and mildew-proof layer.

[0004] According to one embodiment of the present invention, the above-mentioned anti-slip bottom layer is a composite layer of nitrile rubber and polyethylene, wherein the mass percentage of nitrile rubber is 60-75% and the mass percentage of polyethylene is 25-40%; the cross-section of the barbed protrusions is an isosceles triangle.

[0005] According to one embodiment of the present invention, the density of the top of the absorbent layer is 0.3-0.4 g / cm³. 3 The density at the bottom is 0.15-0.25 g / cm³. 3 The overall thickness of the absorbent layer is 3-5mm, and the slope of the gentle slope increases uniformly from the center to the edge, with the maximum slope not exceeding 5°.

[0006] According to one embodiment of the present invention, the cross-section of the above-mentioned flow guide groove is an inverted trapezoid, and the surface of the flow guide groove wall is coated with a polytetrafluoroethylene hydrophobic coating with a coating thickness of 8-12 μm.

[0007] According to one embodiment of the present invention, the diameter of the drainage hole is 3-5mm, the number of drainage holes on each side is 4-6, and the drainage holes are evenly distributed along the length direction of the absorbent layer side.

[0008] According to one embodiment of the present invention, the bottom of the antibacterial and antifungal layer corresponds to the gentle slope, so that there are no gaps.

[0009] Compared with the prior art, the present invention can achieve the following technical effects: 1) By constructing a multi-layered composite structure including an anti-slip bottom layer, a gradient density absorbent layer, an antibacterial and anti-mildew layer, and a surface functional layer, the structure utilizes the synergistic effect of barbed protrusions to enhance fixation, gradient density and gentle slopes to promote directional liquid penetration and flow, and hydrophobic drainage channels and drainage holes to form an efficient discharge system. This achieves significant advantages such as improved liquid management efficiency, fundamental inhibition of bacterial and mold growth, and "active flow guidance and convenient drainage" self-cleaning. It effectively overcomes the shortcomings of traditional car carpets, such as being prone to dampness, having strong odors, and being difficult to clean, and greatly improves the hygiene, comfort, and durability of car interiors.

[0010] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a cross-sectional schematic diagram of an antibacterial, mildew-proof, self-cleaning car carpet according to an embodiment of this utility model.

[0012] Figure 2 This is an embodiment of the present utility model. Figure 1 Top view of the middle absorbent layer. Attached Figure Labels

[0013] Anti-slip bottom layer 10, barbed protrusions 11, water-absorbing layer 20, gentle slope 30, guide channel 40, drainage hole 50, sealing plug 60, antibacterial and mildew-proof layer 70, surface functional layer 80. Detailed Implementation

[0014] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0015] Please refer to Figure 1 and Figure 2 , Figure 1 This is a cross-sectional schematic diagram of an antibacterial, mildew-proof, self-cleaning car carpet according to an embodiment of this utility model. Figure 2 This is an embodiment of the present utility model. Figure 1 A top view of the absorbent layer 20. As shown in the figure, an antibacterial and mildew-proof self-cleaning car carpet includes: an anti-slip bottom layer 10, the bottom of which is provided with evenly spaced barbed protrusions 11.

[0016] In one embodiment of this utility model, the anti-slip bottom layer 10 is made of a mixture of nitrile rubber and low-density polyethylene, which is melt-blended by a twin-screw extruder and then integrally molded by an injection mold; the bottom of the mold cavity is pre-set with an array of barbed protrusions 11, the cross-section of the protrusions is an isosceles triangle, the height of the protrusions after molding is 1.5mm, the horizontal / vertical spacing is 7mm, and the top is polished with a 0.4mm radius arc, completely eliminating the safety hazard of carpet displacement exceeding 5mm during emergency braking.

[0017] Furthermore, an absorbent layer 20 is provided on the outer side of the anti-slip bottom layer 10. The density of the absorbent layer 20 gradually decreases from top to bottom. With its center as the highest point, the absorbent layer 20 forms a gentle slope 30 of 1° to 5° towards the surrounding edges. The gentle slope 30 is provided with several guide grooves 40. The absorbent layer 20 is provided with drainage holes 50 that cooperate with the guide grooves 40 on its side. The drainage holes 50 are provided with openable and closable sealing plugs 60.

[0018] In detail, the absorbent layer 20 is made of sodium polyacrylate superabsorbent resin mixed with polyester staple fibers, and formed into a nonwoven fabric by needle punching. During the forming process, the needle punching pressure of the upper and lower layers is adjusted to achieve a top density of 0.35 g / cm³. 3 Bottom density 0.2 g / cm³ 3 The gradient structure, with an overall thickness of 4mm, greatly improves the water retention rate of the absorbent layer 20. A CNC milling machine is then used to machine a gentle slope 30 on the surface of the absorbent layer 20, with a slope of 1° in the central area, gradually decreasing to 5° towards the edges. Simultaneously, 12 radial guide grooves 40 are milled and drilled on the four sides of the absorbent layer 20. The drainage holes 50, through the gentle slope 30 and guide grooves 40, significantly increase the water flow velocity, allowing water to be quickly discharged from the drainage holes 50 without residue. The sealing plug 60 is made of food-grade silicone through one-piece injection molding, facilitating opening and closing.

[0019] Prior to this, an antibacterial and antifungal layer 70 is provided on the outer side of the absorbent layer 20. Specifically, the antibacterial and antifungal layer 70 is processed into a honeycomb structure using a laser cutting machine. During cutting, the bottom slope of the antibacterial and antifungal layer 70 is simultaneously processed according to the contour of the gentle slope 30 of the absorbent layer 20 to ensure complete adhesion with the absorbent layer 20, with gaps ≤0.1mm. Subsequently, a dip-coating process is used to coat the inner wall of the honeycomb unit with a 0.15mm thick chitosan antibacterial liquid, and then it is dried in a vacuum oven at 60℃ for 2 hours. This ensures that the antibacterial rate remains above 98%, far exceeding the long-lasting effect of traditional surface spraying antibacterial agents.

[0020] Preferably, a surface functional layer 80 is provided on the outer side of the antibacterial and antifungal layer 70. Specifically, the surface functional layer 80 is made of modified polyamide 6 fiber, woven into fabric by a rapier loom, and then calendered by a calendering machine to improve surface smoothness; finally, a 70nm thick nano-titanium dioxide coating is applied to the fiber surface by a spraying process, and then cured under ultraviolet light at 80℃ for 30 minutes after spraying to enhance coating adhesion and greatly improve self-cleaning ability.

[0021] In summary, this utility model, by constructing a multi-layer composite structure comprising an anti-slip bottom layer 10, a gradient density absorbent layer 20, an antibacterial and anti-mildew layer 70, and a surface functional layer 80, utilizes the synergistic effect of barbed protrusions 11 for enhanced fixation, gradient density and gentle slope 30 for promoting directional liquid penetration and flow, and a high-efficiency discharge system composed of a hydrophobic drainage channel 40 and a drainage hole 50. This achieves significant advantages in improving liquid management efficiency, fundamentally inhibiting bacterial and mold growth, and realizing self-cleaning through "active flow guidance and convenient drainage." Thus, it effectively overcomes the drawbacks of traditional automotive carpets, such as being prone to dampness, having strong odors, and being difficult to clean, significantly improving the hygiene, comfort, and durability of automotive interiors.

[0022] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An anti-bacterial and anti-mildew self-cleaning car carpet, characterized in that, include: The anti-slip base layer has evenly spaced barbed protrusions at its bottom. An absorbent layer is located on the outer side of the anti-slip base layer, with its density gradually decreasing from top to bottom. The absorbent layer has a gentle slope of 1° to 5° radiating from its center to the surrounding edges. The gentle slope has several drainage channels. Drainage holes that mate with the drainage channels are located on the sides of the absorbent layer, and each drainage hole has an openable and closable sealing plug. An antibacterial and anti-mildew layer is located on the outer side of the absorbent layer, and a surface functional layer is located on the outer side of the antibacterial and anti-mildew layer.

2. The anti-bacterial and anti-fungal self-cleaning car carpet according to claim 1, wherein, The anti-slip bottom layer is a composite layer of nitrile rubber and polyethylene, and the cross-section of the barbed protrusions is an isosceles triangle.

3. The anti-bacterial and anti-fungal self-cleaning car carpet according to claim 1, wherein, The density of the top of the absorbent layer is 0.3-0.4 g / cm³. 3 The density at the bottom is 0.15-0.25 g / cm³. 3 The overall thickness of the absorbent layer is 3-5mm, and the slope of the gentle slope increases uniformly from the center to the edge, with the maximum slope not exceeding 5°.

4. The anti-bacterial and anti-fungal self-cleaning car carpet according to claim 1, wherein, The cross-section of the flow guide channel is an inverted trapezoid, and the surface of the channel wall is coated with a hydrophobic polytetrafluoroethylene coating with a thickness of 8-12 μm.

5. The anti-bacterial and anti-fungal self-cleaning car carpet according to claim 1, wherein, The diameter of the drainage holes is 3-5mm, and there are 4-6 drainage holes on each side, which are evenly distributed along the length of the absorbent layer.

6. The anti-bacterial and anti-fungal self-cleaning car carpet according to claim 1, wherein, The bottom of the antibacterial and antifungal layer corresponds to the gentle slope, ensuring there are no gaps.

Images