Inflatable TPU film

Abstract

The utility model relates to the technical field of TPU (thermoplastic polyurethane) films, in particular to an inflatable TPU film which comprises a film body (100), the film body (100) is provided with an inflatable cavity (101), and the film body (100) comprises a compression-resistant layer (102), a sealing layer (103), an anti-fracture layer (104), a metal net layer (105), an anti-puncture layer (106), a TPU film layer (107) and a wear-resistant layer (108) which are sequentially arranged from inside to outside. Due to the adoption of the structural design, that is, the film body is provided with the compression-resistant layer, the sealing layer, the anti-cracking layer, the metal net layer, the anti-puncturing layer, the TPU film layer and the wear-resistant layer, the toughness, the safety and the wear resistance of the product are improved; and the inflatable cavity for inflation is arranged, so that the elasticity of the product is improved, the performance of the product can be comprehensively improved, and the use requirements of different scenes are met.

Description

Technical Field

[0001] This utility model relates to the field of TPU film technology, and in particular to an inflatable TPU film. Background Technology

[0002] TPU film is a thin film made from TPU granules through special processes such as calendering, casting, blown film production, and coating. TPU not only possesses excellent high tensile strength, high tear strength, toughness, and aging resistance, but it is also a mature environmentally friendly material. TPU has been widely used in: footwear, clothing, inflatable toys, water and underwater sports equipment, medical equipment, fitness equipment, automotive seat materials, umbrellas, suitcases, and handbags.

[0003] In existing technologies, conventional TPU films have simple structures and generally poor performance. To meet the needs of different application scenarios, the structure of TPU films is usually optimized to improve their performance and meet various requirements. Examples include a hydrolysis-resistant TPU film disclosed in Chinese Utility Model Patent No. CN220314429U, and a breathable and waterproof TPU film disclosed in Chinese Utility Model Patent No. CN213675896U.

[0004] Therefore, this application also provides an inflatable TPU film that is not easily broken and has a long service life. Utility Model Content

[0005] The purpose of this invention is to provide an inflatable TPU film that is not easily broken and has a long service life.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An inflatable TPU film includes a film body having an inflatable cavity. The film body includes, from the inside out, a pressure-resistant layer, a sealing layer, a rupture-resistant layer, a metal mesh layer, a puncture-resistant layer, a TPU film layer, and a wear-resistant layer.

[0008] As a further embodiment of this utility model, the film body is provided with an air inlet and an air outlet communicating with the inflation cavity, the air inlet is provided with an air inlet safety valve, and the air outlet is provided with an air outlet safety valve.

[0009] As a further embodiment of this invention, a hook-and-tenon layer is provided between the TPU film layer and the wear-resistant layer.

[0010] As a further embodiment of this utility model, the hook and tenon layer includes a plurality of first L-shaped components disposed on the TPU film layer and a plurality of second L-shaped components disposed on the wear-resistant layer, wherein the first L-shaped components and the corresponding second L-shaped components are interlocked together by adhesive.

[0011] As a further embodiment of this invention, the outer surface of the wear-resistant layer is provided with several protrusions.

[0012] As a further embodiment of this invention, the protrusion is semi-circular in shape.

[0013] As a further embodiment of this invention, the pressure-resistant layer is made of polyurethane and has a thickness of 0.1-0.15 mm.

[0014] As a further embodiment of this invention, both the anti-crack layer and the anti-puncture layer are made of polyvinylidene chloride with a thickness of 0.3-0.35 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Due to the above-mentioned structural design, the film body has a pressure-resistant layer, a sealing layer, a crack-resistant layer, a metal mesh layer, a puncture-resistant layer, a TPU film layer, and a wear-resistant layer, which improves the toughness, safety, and wear resistance of the product; and has an inflatable cavity that can be inflated to increase the product's elasticity, thereby comprehensively improving the product's performance and meeting the usage needs of different scenarios. Attached Figure Description

[0017] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Appendix Figure 2 This is a schematic diagram of the structure of the thin film body in an embodiment of this utility model.

[0019] The labels in the diagram are as follows:

[0020] 100-film body;

[0021] 101-Inflatable cavity, 102-Pressure-resistant layer, 103-Sealing layer, 104-Crack-resistant layer, 105-Metal mesh layer, 106-Prick-resistant layer, 107-TPU film layer, 108-Wear-resistant layer, 109-Hook and tenon layer;

[0022] 1011 - Air inlet, 1012 - Air outlet;

[0023] 1011a - Inlet safety valve, 1012a - Outlet safety valve;

[0024] 1091 - First L-shaped component; 1092 - Second L-shaped component;

[0025] 1081 - Protrusion. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Example:

[0033] like Figure 1-2 As shown, this application discloses an inflatable TPU film, comprising a film body 100. The film body 100 has an inflatable cavity 101 for inflation to increase elasticity during use. The film body 100 includes, from the inside out, a pressure-resistant layer 102, a sealing layer 103, a rupture-resistant layer 104, a metal mesh layer 105, a puncture-resistant layer 106, a TPU film layer 107, and a wear-resistant layer 108. The three layers of protection—the rupture-resistant layer 104, the metal mesh layer 105, and the puncture-resistant layer 106—prevent sharp objects from puncturing the film body 100 upon impact. The pressure-resistant layer 102 improves the toughness of the film body 100, preventing it from rupturing after being filled with a large amount of gas. The wear-resistant layer 108 improves the wear resistance of the film body 100, thereby comprehensively improving the performance of the film body and meeting the usage requirements of different scenarios.

[0034] Specifically, the film body 100 is provided with an air inlet 1011 and an air outlet 1012 that are connected to the inflation cavity 101. An air inlet safety valve 1011a is provided on the air inlet 1011 to control the opening and closing of the air inlet 1011, and an air outlet safety valve 1012a is provided on the air outlet 1012 to control the opening and closing of the air outlet 1012.

[0035] Specifically, a hook-and-tenon layer 109 is provided between the TPU film layer 107 and the wear-resistant layer 108. The hook-and-tenon layer 109 includes a plurality of first L-shaped members 1091 disposed on the TPU film layer 107 and a plurality of second L-shaped members 1092 disposed on the wear-resistant layer 108. The first L-shaped members 1091 and the corresponding second L-shaped members 1092 are interlocked by adhesive to improve the bonding force between the TPU film layer 107 and the wear-resistant layer 108.

[0036] Specifically, the outer surface of the wear-resistant layer 108 is provided with a plurality of protrusions 1081, which are semi-circular in shape, to further improve the wear resistance of the wear-resistant layer 108.

[0037] Specifically, the pressure-resistant layer 102 is made of polyurethane and has a thickness of 0.1-0.15 mm, which is used to improve the toughness of the film body 100.

[0038] Specifically, both the anti-crack layer 104 and the anti-puncture layer 106 are made of polyvinylidene chloride with a thickness of 0.3-0.35 mm, and are used to prevent sharp objects from puncturing the film body 100.

[0039] Specifically, the metal mesh layer 105 includes several metal wires arranged perpendicularly to each other. The metal mesh layer 105 is disposed between the anti-rupture layer 104 and the anti-puncture layer 106, forming a joint protection with the anti-rupture layer 104 and the anti-puncture layer 106 to ensure the safety of the film body 100 in use.

[0040] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, resistance to breakage, and long service life.

[0041] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An inflatable TPU film, characterized in that: It includes a film body (100) having an inflatable cavity (101), and the film body (100) includes, from the inside to the outside, a pressure-resistant layer (102), a sealing layer (103), a crack-resistant layer (104), a metal mesh layer (105), a puncture-resistant layer (106), a TPU film layer (107) and a wear-resistant layer (108).

2. The inflatable TPU film according to claim 1, characterized in that: The film body (100) is provided with an air inlet (1011) and an air outlet (1012) that are connected to the air-filled cavity (101). An air inlet safety valve (1011a) is provided on the air inlet (1011), and an air outlet safety valve (1012a) is provided on the air outlet (1012).

3. The inflatable TPU film according to claim 2, characterized in that: A hook-and-groove layer (109) is provided between the TPU film layer (107) and the wear-resistant layer (108).

4. The inflatable TPU film according to claim 3, characterized in that: The hook and tenon layer (109) includes a plurality of first L-shaped components (1091) disposed on the TPU film layer (107) and a plurality of second L-shaped components (1092) disposed on the wear-resistant layer (108), wherein the first L-shaped components (1091) and the corresponding second L-shaped components (1092) are interlocked together by adhesive.

5. The inflatable TPU film according to claim 4, characterized in that: The outer surface of the wear-resistant layer (108) is provided with a number of protrusions (1081).

6. The inflatable TPU film according to claim 5, characterized in that: The protrusion (1081) is semi-circular in shape.

7. The inflatable TPU film according to claim 6, characterized in that: The pressure-resistant layer (102) is made of polyurethane and has a thickness of 0.1-0.15 mm.

8. The inflatable TPU film according to claim 7, characterized in that: Both the anti-crack layer (104) and the anti-puncture layer (106) are made of polyvinylidene chloride and have a thickness of 0.3-0.35 mm.

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