Anti-aging and anti-yellowing tpu composite fabric
By combining a multi-layered structural design with functional coatings, the problem of yellowing and aging of TPU composite fabrics during outdoor use has been solved, extending service life and improving antibacterial properties and comfort, while also enhancing durability and fire retardancy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-06
AI Technical Summary
Existing TPU composite fabrics are prone to aging and yellowing when used outdoors, resulting in a short service life.
It adopts a multi-layer structure design, including a base fabric, first and second TPU layers, an anti-aging layer, a protective layer, and an inner layer. It utilizes a combination of nano-titanium dioxide coating and polytetrafluoroethylene coating to enhance UV resistance, antibacterial and self-cleaning functions. Combined with zirconium or silver antibacterial layer and polyester fiber skin-friendly layer, it improves the durability and comfort of the fabric.
It effectively inhibits the aging and yellowing of TPU composite fabrics, extends their service life, improves antibacterial properties and wearing comfort, and enhances fire resistance, flame retardancy, and abrasion resistance.
Smart Images

Figure CN223972278U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of composite fabric technology, and in particular relates to a TPU composite fabric that is resistant to aging and yellowing. Background Technology
[0002] TPU composite fabric is a high-performance material made by laminating thermoplastic polyurethane (TPU) film with other substrates (such as polyester, nylon, etc.). It boasts excellent waterproof, windproof, and breathable properties, while also possessing flexibility and abrasion resistance, making it widely used in outdoor clothing, sports equipment, medical supplies, and other fields. TPU composite fabric is environmentally friendly, non-toxic, and recyclable, meeting the requirements of modern sustainable development.
[0003] Most existing TPU composite fabrics are made of only a base fabric and a thermoplastic polyurethane (TPU) film. Outdoor clothing made of TPU composite fabrics is prone to aging and yellowing after long-term outdoor use and exposure to sunlight, resulting in a poor lifespan. Therefore, based on actual usage, we have improved the above-mentioned existing technologies. Utility Model Content
[0004] This invention overcomes the shortcomings of the prior art and provides an anti-aging and anti-yellowing TPU composite fabric to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An anti-aging and anti-yellowing TPU composite fabric includes a main body, the main body includes a fabric base layer, a first TPU layer and a second TPU layer are sequentially arranged above the fabric base layer, an anti-aging layer is provided on the second TPU layer, and a protective layer is coated on the outer surface of the anti-aging layer, and an inner layer is provided below the fabric base layer.
[0007] The inner layer includes the overlay layer located beneath the fabric base layer.
[0008] In a preferred embodiment of this invention, an antibacterial layer and a skin-friendly layer are sequentially provided below the coating layer.
[0009] In a preferred embodiment of this invention, the protective layer is a nano-titanium dioxide coating layer.
[0010] In a preferred embodiment of this invention, the anti-aging layer is a polytetrafluoroethylene coating.
[0011] In a preferred embodiment of this utility model, the covering layer is made of interwoven warp and weft yarns, and both the warp and weft yarns are plied yarns made of cotton fiber, polyester fiber and flame-retardant nylon fiber twisted together, and the polyester fiber is antibacterial polyester fiber.
[0012] In a preferred embodiment of this invention, the antibacterial layer is zirconium or silver, and the zirconium or silver is nanoscale in size, while the skin-friendly layer is made of polyester fiber material.
[0013] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0014] This invention features an anti-aging layer made of polytetrafluoroethylene coating, which is resistant to high temperatures and ultraviolet radiation. The protective layer of nano-titanium dioxide coating has functions such as UV resistance, antibacterial properties, self-cleaning, and anti-aging, which can inhibit the aging and yellowing of TPU composite fabric and extend its service life. The covering layer made of interwoven warp and weft yarns has certain antibacterial properties. Combined with the antibacterial layer of nano-zirconium or silver, the antibacterial ability of TPU composite fabric is improved. The skin-friendly layer made of polyester fiber material has good softness, which improves the performance of TPU composite fabric. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present invention;
[0017] Figure 2 This is a cross-sectional view of the main front structure of a preferred embodiment of the present invention;
[0018] Figure 3 This is a cross-sectional view of the front structure of the inner layer in a preferred embodiment of the present invention.
[0019] In the diagram: 10, main body; 100, base fabric; 101, first TPU layer; 102, second TPU layer; 103, anti-aging layer; 104, protective layer; 105, inner layer; 1051, covering layer; 1052, antibacterial layer; 1053, skin-friendly layer. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0021] Example:
[0022] Please refer to Figure 1-3This embodiment of the present invention provides an anti-aging and anti-yellowing TPU composite fabric, including a main body 10, the main body 10 including a fabric base layer 100, a first TPU layer 101 and a second TPU layer 102 are sequentially disposed on the upper part of the fabric base layer 100, an anti-aging layer 103 is disposed on the second TPU layer 102, and a protective layer 104 is coated on the outer surface of the anti-aging layer 103. An inner layer 105 is disposed below the fabric base layer 100. The fabric base layer 100 can be made of polyester, nylon or other fabrics. The first TPU layer 101 and the second TPU layer 102 are processed by plastic extrusion process to process TPU raw materials on the surface of the fabric base layer 100, so that the two are integrally formed. The anti-aging layer 103 has high temperature resistance and UV resistance. The protective layer 104 is a protective coating with functions such as UV resistance, antibacterial, self-cleaning and anti-aging, which can inhibit the aging and yellowing of the TPU composite fabric and extend the service life of the TPU composite fabric.
[0023] The inner layer 105 includes a covering layer 1051 located below the fabric base layer 100; the side of the covering layer 1051 on the inner layer 105 facing the human body has certain antibacterial properties, which improves the performance of the TPU composite fabric.
[0024] Below the covering layer 1051, there are sequentially arranged an antibacterial layer 1052 and a skin-friendly layer 1053; the covering layer 1051, together with the antibacterial layer 1052, improves the antibacterial ability of the TPU composite fabric, and the skin-friendly layer 1053 improves the comfort of wearing clothing made of TPU composite fabric, thus improving the performance of TPU composite fabric.
[0025] The protective layer 104 is a nano-titanium dioxide coating layer; the nano-titanium dioxide coating layer has functions such as anti-ultraviolet, antibacterial, self-cleaning, and anti-aging, which can greatly inhibit the aging and yellowing of the fabric, thereby extending the service life of the TPU composite fabric.
[0026] The anti-aging layer 103 is a polytetrafluoroethylene coating; the PTFE coating has high temperature resistance and good UV resistance, which can improve the anti-aging ability of the TPU composite fabric. The anti-aging layer 103 is applied to the second TPU layer 102 by drying or curing.
[0027] The covering layer 1051 is made of interwoven warp and weft yarns, and both warp and weft yarns are made of twisted cotton fiber, polyester fiber and flame-retardant acrylic fiber. The polyester fiber is antibacterial polyester fiber. The twisted yarn is made of one cotton fiber, one polyester fiber and two flame-retardant acrylic fibers, which makes the inner layer 105 soft, wear-resistant and flame-retardant, and can improve the fire resistance and flame retardancy of TPU composite fabric.
[0028] The antibacterial layer 1052 is made of zirconium or silver, and the zirconium or silver is nano-sized. The skin-friendly layer 1053 is made of polyester fiber material. The zirconium or silver particles are suspended in a polyurethane solution, and then the liquid is coated on the surface of the covering layer 1051 (ply yarn). After the coating is formed, the antibacterial coating is then brought into contact with the covering layer 1051 through drying or curing treatment, thereby playing an antibacterial role. The skin-friendly layer 1053, made of polyester fiber material, has antistatic and anti-wrinkle functions, as well as wear resistance, which prevents pilling after long-term contact with human skin and improves the performance of TPU composite fabric.
[0029] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. An anti-aging and anti-yellowing tpu composite fabric, characterized in that, The utility model provides a kind of anti-aging and antibacterial knitted fabric, including main body (10), the main body (10) includes fabric base layer (100), the upper of fabric base layer (100) is equipped with first TPU layer (101) in turn, second TPU layer (102), the second TPU layer (102) is equipped with anti-aging layer (103), and the outer surface of anti-aging layer (103) is coated with protective layer (104), the lower of fabric base layer (100) is equipped with inner surface layer (105). The inner surface layer (105) includes a cladding layer (1051) located below the fabric base layer (100).
2. The anti-aging, anti-yellowing tpu composite fabric of claim 1, wherein, The cladding layer (1051) is sequentially provided with an antibacterial layer (1052) and a skin-friendly layer (1053) below.
3. The anti-aging, anti-yellowing tpu composite fabric of claim 1, wherein, The protective layer (104) is a nano titanium dioxide coating layer.
4. The anti-aging, anti-yellowing tpu composite fabric of claim 1, wherein, The anti-aging layer (103) is a polytetrafluoroethylene coating.
5. The anti-aging, anti-yellowing tpu composite fabric of claim 1, wherein, The cladding layer (1051) is interwoven by warp yarns and weft yarns, and both the warp yarns and the weft yarns are ply yarns twisted from cotton fibers, polyester fibers and flame-retardant fibers, and the polyester fibers are antibacterial polyester fibers.
6. The anti-aging, anti-yellowing tpu composite fabric of claim 2, wherein, The antibacterial layer (1052) is zirconium or silver, and the zirconium or silver is in nano size, and the skin-friendly layer (1053) is made of polyester fiber material.