PU leather and carpet

Abstract

The utility model provides PU leather and a carpet, and aims to solve the problem of glue failure and falling caused by separation between the PU leather and accessories. The PU leather comprises a first PU layer, a base cloth layer and a second PU layer which are sequentially arranged in a stacked mode, the base cloth layer is provided with a plurality of gap holes, PU connecting bodies are arranged in the gap holes, and the first PU layer and the second PU layer are connected through the PU connecting bodies. The tearing performance of the PU leather can be improved.

Description

Technical Field

[0001] This application relates to the field of fabrics and leathers, and particularly to a kind of PU leather and carpet. Background Art

[0002] Since polyurethane (PU) material easy-to-clean carpets are formed by mixing and foaming of PU A / B materials, compared with conventional needled or tufted fabrics, at the positions where there are incisions at the edge of the surface layer or there are creases due to frequent folding, the tearing performance is relatively weaker than that of needled or tufted fabrics, and it is easy to extend along the tearing opening under force. Therefore, when such structures are encountered in the design process of PU easy-to-clean carpets or such usage situations are encountered during use, there are potential hazards of product tearing and damage. To solve the problem of tearing along the notch or crease of such materials, currently, mainly attaching accessories to the back is adopted. Through local reinforcement, the tearing problem is solved, that is, at the position where there is a tearing incision on the PU carpet, accessories are attached to the back of the incision to strengthen the local tearing performance. When the material tears along the incision or crease, through the auxiliary reinforcement of the attached accessories, the local tearing strength at the incision position is improved, achieving an anti-tearing effect. However, since this structure is fixed in the form of gluing and attaching accessories, the later-attached accessories are prone to separation between the PU leather and the accessories, resulting in glue-off and falling-off problems under the influence of turnover transportation and use environment. Summary of the Utility Model

[0003] The embodiments of this application provide a kind of PU leather and carpet to solve the problem of separation between the PU leather and the accessories, resulting in glue-off and falling-off.

[0004] To solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, the embodiments of this application provide a kind of PU leather. The PU leather includes a first PU layer, a base fabric layer, and a second PU layer which are sequentially laminated. The base fabric layer has a plurality of gap holes, and a PU connecting body is arranged in the gap holes. The first PU layer and the second PU layer are connected through the PU connecting body.

[0006] Optionally, the thicknesses of the first PU layer and the second PU layer are equal.

[0007] Optionally, a first texture pattern is arranged on the surface of the first PU layer facing away from the base fabric layer, and a second texture pattern is arranged on the surface of the second PU layer facing away from the base fabric layer.

[0008] Optionally, the base fabric layer is non-woven fabric, mesh fabric or fiberglass fabric.

[0009] Optionally, the PU leather further includes a reinforcing base fabric layer, and the first PU layer, the base fabric layer, the second PU layer, and the reinforcing base fabric layer are sequentially stacked, and the reinforcing base fabric layer is fixedly connected to the second PU layer.

[0010] Optionally, the PU leather further includes a first waterproof layer and a second waterproof layer. The first waterproof layer is fixedly connected to the side of the first PU layer facing away from the base fabric layer, and the second waterproof layer is fixedly connected to the side of the second PU layer facing away from the base fabric layer.

[0011] Optionally, the PU leather further includes a first wear-resistant layer and a second wear-resistant layer. The first wear-resistant layer is fixedly connected to the side of the first PU layer facing away from the base fabric layer, and the second wear-resistant layer is fixedly connected to the side of the second PU layer facing away from the base fabric layer.

[0012] Optionally, the first PU layer and the second PU layer are made of polyol and isocyanate.

[0013] Optionally, the thickness of the first PU layer and the second PU layer is 2 mm to 5 mm, and the thickness of the base fabric layer is 0.5 mm to 1 mm.

[0014] In a second aspect, an embodiment of the present application further provides a carpet, including a kind of PU leather as described in the first aspect.

[0015] In the embodiment of the present application, the PU leather includes a first PU layer, a base fabric layer, and a second PU layer that are sequentially stacked. The base fabric layer has a plurality of gap holes, and a PU connecting body is provided in the gap holes. The first PU layer and the second PU layer are connected through the PU connecting body, so that the first PU layer, the base fabric layer, and the second PU layer are integrated into one body, thereby avoiding the situation of the attachment coming off due to glue opening, and because the base fabric layer has strong tearing performance, the tearing performance of the PU leather can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description in the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of a kind of PU leather provided by an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the manufacturing process of a kind of PU leather provided by an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structural mechanism of a PU leather provided by an embodiment of the present application. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the ordinary meanings understood by those of ordinary skill in the art to which the present application pertains. The "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0022] Refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a PU leather provided by an embodiment of the present application. As Figure 1 shown, the PU leather includes a first PU layer 100, a base fabric layer 200, and a second PU layer 300 that are sequentially stacked. The base fabric layer 200 has a plurality of gap holes, and a PU connector is provided in the gap holes. The first PU layer 100 and the second PU layer 300 are connected by the PU connector.

[0023] Specifically, the above-mentioned first PU layer 100 and second PU layer 300 may be made of a PU A / B mixture. The above-mentioned base fabric layer 200 may be a base material woven from textile fibers (such as polyester, nylon, or cotton). The above-mentioned gap holes may refer to the tiny voids or holes between the fibers of the base fabric layer 200. These gap holes allow liquid substances (such as PU A / B material) to penetrate and flow. Through these holes, the liquid can better infiltrate and cover the base fabric, and a uniform and firm composite material structure can be formed after curing. The above-mentioned PU connector may be made of a PU A / B mixture. The formation process of the PU connector may be by injecting a PU A / B mixture into the base fabric layer 200, and the PU A / B mixture forms the PU connector after curing in these hole liquids.

[0024] Exemplarily, Figure 2 This is a schematic diagram of the manufacturing process of a PU leather provided by an embodiment of the present application. As Figure 2As shown, first, the base fabric layer 200 is laid flat under the lower mold of the mold in advance. After the mold is closed, the mixed PU A / B mixture is injected into the mold cavity through a high-pressure gun head. The PU A / B mixture flows along the mold cavity, forms and cures. After reaching the set curing time, the mold is opened to take out the workpiece, completing the manufacturing process of the PU leather.

[0025] Exemplarily, Figure 3 is a schematic diagram of the structural mechanism of a PU leather provided by an embodiment of the present application. As Figure 3 shown, after the mixed PU A / B material 1 is injected onto the surface of the base fabric 2, under the action of gravity, the mixture 1 on the upper PU layer 3 passes through the gap holes or mesh holes of the base fabric 2 and reaches the back of the base fabric 2, forming the lower PU layer 4. After a certain forming reaction time, the base fabric 2 and the lower PU layer 4 are transformed from a liquid state into a solid skin, and the base fabric 2 is wrapped in the sandwich, realizing the integration of the base fabric 2, the upper PU layer 3, and the lower PU layer 4. Since the base fabric 2 has strong tearing performance, the tearing performance of the PU leather is improved.

[0026] In an embodiment of the present application, the PU leather includes a first PU layer 100, a base fabric layer 200, and a second PU layer 300 that are sequentially stacked. The base fabric layer 200 has a plurality of gap holes, and PU connectors are provided in the gap holes. The first PU layer 100 and the second PU layer 300 are connected through the PU connectors, so that the first PU layer 100, the base fabric layer 200, and the second PU layer 300 can be integrated, thereby avoiding the situation of the attachment coming off due to glue opening. And because the base fabric layer 200 has strong tearing performance, the tearing performance of the PU leather can be improved.

[0027] Optionally, the first PU layer 100 and the second PU layer 300 have the same thickness.

[0028] In this embodiment, the first PU layer 100 and the second PU layer 300 have the same thickness, so that the PU leather material is more evenly stressed during use, thereby increasing the durability of the overall structure.

[0029] Optionally, a first texture pattern is provided on the surface of the first PU layer 100 facing away from the base fabric layer 200, and a second texture pattern is provided on the surface of the second PU layer 300 facing away from the base fabric layer 200.

[0030] Specifically, the above-mentioned first texture pattern and second texture pattern may refer to regular or irregular protrusions, lines or shapes formed on the surfaces of the first PU layer 100 and the second PU layer 300, and can be specifically obtained by means such as mold embossing, laser etching, and machining.

[0031] In this embodiment, a first texture pattern is provided on the side of the first PU layer 100 facing away from the base fabric layer 200, and a second texture pattern is provided on the side of the second PU layer 300 facing away from the base fabric layer 200, so as to increase the layering of the surface of the PU leather, improve the three-dimensional sense and aesthetics of the PU leather, increase the friction on the surface of the PU leather to prevent slipping, and enhance the wear resistance of the PU leather.

[0032] Optionally, the base fabric layer 200 is a non-woven fabric, a mesh fabric or a fiberglass fabric.

[0033] Specifically, the above-mentioned non-woven fabric is a fabric made by bonding, mechanically or chemically combining fibers. The above-mentioned mesh fabric is a fabric formed by weaving into a mesh structure, usually made of high-strength fibers such as polyester and nylon. The above-mentioned fiberglass fabric is a fabric woven from slender fiberglass fibers, with high strength and heat resistance.

[0034] In this embodiment, the base fabric layer 200 is a non-woven fabric, a mesh fabric or a fiberglass fabric, and the fabric of the base fabric layer 200 can be selected according to specific application requirements. The non-woven fabric has good flexibility and uniformity, which can make the PU leather softer and more comfortable. The structure of the mesh fabric can effectively prevent tearing caused by pulling, and the fiberglass fabric also has extremely high strength and wear resistance, which can improve the anti-damage ability of the PU leather.

[0035] Optionally, the PU leather further includes a reinforcing base fabric layer 200. The first PU layer 100, the base fabric layer 200, the second PU layer 300 and the reinforcing base fabric layer 200 are sequentially stacked, and the reinforcing base fabric layer 200 is fixedly connected to the second PU layer 300.

[0036] Specifically, the above-mentioned reinforcing base fabric layer 200 can be made of materials such as non-woven fabric, mesh fabric or fiberglass fabric. The fixed connection between the reinforcing base fabric layer 200 and the second PU layer 300 can be achieved by means of whole-surface gluing.

[0037] In this embodiment, the PU leather further includes a reinforcing base fabric layer 200. The first PU layer 100, the base fabric layer 200, the second PU layer 300 and the reinforcing base fabric layer 200 are sequentially stacked, and the reinforcing base fabric layer 200 is fixedly connected to the second PU layer 300, so as to further improve the tearing performance of the PU leather.

[0038] Optionally, the PU leather further includes a first waterproof layer and a second waterproof layer. The first waterproof layer is fixedly connected to the side of the first PU layer 100 facing away from the base fabric layer 200, and the second waterproof layer is fixedly connected to the side of the second PU layer 300 facing away from the base fabric layer 200.

[0039] Specifically, the above-mentioned first waterproof layer and second waterproof layer can be formed by applying a waterproof chemical agent on the surface of the PU leather, such as polyurethane, silicone resin or fluoride, etc. Specifically, the waterproof agent can be evenly coated on the surface of the PU leather by spraying, brushing or rolling, and then necessary drying and curing treatments are carried out; it can also be that during the production process of the PU leather, a waterproof film or waterproof thin film is directly laminated on its surface layer, such as a thermoplastic polyurethane (TPU) film or other high-performance waterproof films.

[0040] In this embodiment, the above-mentioned PU leather further includes a first waterproof layer and a second waterproof layer. The first waterproof layer is fixedly connected to the side of the first PU layer 100 facing away from the base cloth layer 200, and the second waterproof layer is fixedly connected to the side of the second PU layer 300 facing away from the base cloth layer 200, thereby improving the waterproof performance of the PU leather.

[0041] Optionally, the PU leather further includes a first wear-resistant layer and a second wear-resistant layer. The first wear-resistant layer is fixedly connected to the side of the first PU layer 100 facing away from the base cloth layer 200, and the second wear-resistant layer is fixedly connected to the side of the second PU layer 300 facing away from the base cloth layer 200.

[0042] Specifically, the above-mentioned first wear-resistant layer and second wear-resistant layer can be formed by directly coating a wear-resistant material on the surface of the PU leather, such as a polyurethane (PU) transparent coating, polytetrafluoroethylene (PTFE) or other special wear-resistant coatings. Specifically, the wear-resistant coating can be evenly coated on the surface of the PU leather by spraying, brushing or rolling, and then the coating is cured by heating, ultraviolet curing or air drying; it can also be that during the production process of the PU leather, a wear-resistant film or thin film is laminated on the PU leather, such as a thermoplastic polyurethane (TPU) film, polyvinyl formal (PVB), etc.

[0043] In this embodiment, the above-mentioned PU leather further includes a first wear-resistant layer and a second wear-resistant layer. The first wear-resistant layer is fixedly connected to the side of the first PU layer 100 facing away from the base cloth layer 200, and the second wear-resistant layer is fixedly connected to the side of the second PU layer 300 facing away from the base cloth layer 200, thereby improving the wear-resistant performance of the PU leather.

[0044] Optionally, the first PU layer 100 and the second PU layer 300 are made of polyol and isocyanate.

[0045] In this embodiment, the first PU layer 100 and the second PU layer 300 are made of polyol and isocyanate. The polyol and isocyanate react chemically to form a polyurethane polymer, thereby obtaining the first PU layer 100 and the second PU layer 300.

[0046] Optionally, the thickness of the first PU layer 100 and the second PU layer 300 is 2 mm to 5 mm, and the thickness of the base fabric layer 200 is 0.5 mm to 1 mm.

[0047] Specifically, the thickness of the first PU layer 100 and the second PU layer 300 is greater than the thickness of the base fabric layer 200, and the specific thickness can be adjusted according to actual requirements.

[0048] The embodiment of the present application also provides a carpet, including a kind of PU leather as described above.

[0049] In this embodiment, since the carpet includes the PU leather described in the above embodiment, the carpet can realize each use process of the above PU leather and has the same beneficial effects. To avoid repetition, it will not be elaborated here.

[0050] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0051] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A kind of PU leather, characterized in that, The described PU leather includes a first PU layer, a base fabric layer, and a second PU layer that are sequentially stacked. The base fabric layer has a plurality of gap holes, and a PU connector is provided in the gap holes. The first PU layer and the second PU layer are connected by the PU connector.

2. The PU leather according to claim 1, characterized in that, The first PU layer and the second PU layer have the same thickness.

3. The PU leather according to claim 1, characterized in that, A first texture pattern is provided on the side of the first PU layer facing away from the base fabric layer, and a second texture pattern is provided on the side of the second PU layer facing away from the base fabric layer.

4. The PU leather according to claim 1, wherein, The base fabric layer is a non-woven fabric, a mesh fabric, or a fiberglass fabric.

5. The PU leather according to any one of claims 1-4, characterized in that, The PU leather further includes a reinforcing base fabric layer. The first PU layer, the base fabric layer, the second PU layer, and the reinforcing base fabric layer are sequentially stacked, and the reinforcing base fabric layer is fixedly connected to the second PU layer.

6. The PU leather according to any one of claims 1-4, characterized in that The PU leather further includes a first waterproof layer and a second waterproof layer. The first waterproof layer is fixedly connected to the side of the first PU layer facing away from the base fabric layer, and the second waterproof layer is fixedly connected to the side of the second PU layer facing away from the base fabric layer.

7. The PU leather according to any one of claims 1-4, characterized in that, The PU leather further includes a first wear-resistant layer and a second wear-resistant layer. The first wear-resistant layer is fixedly connected to the side of the first PU layer facing away from the base fabric layer, and the second wear-resistant layer is fixedly connected to the side of the second PU layer facing away from the base fabric layer.

8. The PU leather according to any one of claims 1-4, characterized in that, The first PU layer and the second PU layer are made of polyol and isocyanate.

9. The PU leather according to any one of claims 1 to 4, characterized in that, The thickness of the first PU layer and the second PU layer is 2 millimeters to 5 millimeters, and the thickness of the base fabric layer is 0.5 millimeters to 1 millimeter.

10. A carpet, characterized in that, A kind of PU leather according to any one of claims 1-9 is included.

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