Synthetic leather for automotive trim

Abstract

The utility model provides synthetic leather for an automotive trim, which is characterized in that one surface close to the automotive trim is a lower surface, the other surface is an upper surface, and the synthetic leather sequentially comprises a wear-resistant substrate layer, a latex layer, a middle substrate layer and a base cloth layer from bottom to top, and the middle matrix layer is a bio-based superfine fiber synthetic leather layer. The synthetic leather disclosed by the utility model is made into a protective sleeve for the automotive trim, so that the automotive trim can be well protected, and the automotive trim is more attractive due to the matte color; moreover, the middle matrix layer is the bio-based superfine fiber synthetic leather and has good air permeability and antistatic performance, so that the finished synthetic leather also has the properties.

Description

Technical Field

[0001] The utility model belongs to the technical field of synthetic leather, in particular to synthetic leather for automobile interior decoration. Background Art

[0002] The automotive interior system is an important part of the car body, and the design workload of the interior system accounts for more than 60% of the car styling design workload, far exceeding the car's appearance, and is one of the most important parts of the car body. Each vehicle manufacturer usually has a large automotive interior team to complete a large amount of engineering work related to the interior.

[0003] Because the driver and passengers are most in contact with the car floor, steering wheel, and seats during driving, these parts are also easily worn and stained, affecting their normal use and appearance. In order to better protect these parts, steering wheel covers, foot mats, seat cushion covers and other car interior decorations came into being.

[0004] At present, the protective covers such as seat cushion covers for automobile interiors on the market are made of materials such as genuine leather and synthetic leather. Genuine leather is expensive and not suitable for mass consumption, and also has the disadvantage of not being wear-resistant. Synthetic leather has the advantages of being wear-resistant, cheap, and having a good feel, and is deeply loved by consumers. However, when the existing synthetic leather is used as a protective cover for automobile interiors, its air permeability, antistatic performance, waterproof performance, and friction resistance need to be improved. Utility Model Content

[0005] Technical problem to be solved: In view of the shortcomings of the prior art, the utility model provides a synthetic leather for automobile interior decoration, which has excellent properties such as good air permeability, anti-static performance, waterproof performance, and friction resistance.

[0006] Technical solution: A synthetic leather for automobile interior, with one side close to the automobile interior as the bottom and the other side as the top. The synthetic leather includes a wear-resistant base layer, a latex layer, an intermediate base layer and a base fabric layer from bottom to top; the intermediate base layer is a bio-based ultrafine fiber synthetic leather layer.

[0007] The thickness of the intermediate substrate layer is 1.2-2 mm.

[0008] The wear-resistant base layer described above is a polyurethane layer with a thickness of 0.8-1.2 mm.

[0009] The thickness of the latex layer described above is 2-3.5 mm.

[0010] The base fabric layer described above is a polyester fabric layer with a thickness of 0.5-1 mm.

[0011] The upper surface of the base fabric layer is also coated with a coating.

[0012] The coating layer described above comprises a primer layer and a topcoat layer, and the topcoat layer and the primer layer are sequentially arranged on the base fabric layer.

[0013] The primer layer described above is a silicone-modified acrylate coating with a thickness of 0.04-0.08 mm.

[0014] The topcoat layer described above is a water-based polyurethane coating with a thickness of 0.02-0.07 mm.

[0015] The synthetic leather described above is provided with a plurality of through-holes from bottom to top.

[0016] Beneficial effects: The synthetic leather for automobile interior provided by the utility model has the following beneficial effects:

[0017] 1. The wear-resistant base layer of the present invention directly contacts the automobile parts, has excellent friction resistance, is not easy to age and wear during use, and is not easy to fall off after long-term use.

[0018] 2. The latex layer of the present invention can enhance the overall softness of the synthetic leather, and the natural latex has an antibacterial effect and is not easy to mold.

[0019] 3. The intermediate substrate layer of the present invention is a bio-based ultrafine fiber synthetic leather layer, and the bio-based ultrafine fiber synthetic leather itself has good air permeability and antistatic properties, so that the finished synthetic leather of the present invention also has these properties.

[0020] 4. The base fabric layer of the present invention is also coated with a coating, wherein the primer layer of the coating is a silicone-modified acrylic coating, which has excellent permeability, waterproofness, and deformation resistance; the topcoat layer is a water-based polyurethane coating, which has excellent matte gloss and oxidation resistance, thereby improving the aesthetics of the automobile interior. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the synthetic leather of the utility model.

[0022] Figure 2 It is a schematic diagram of the base fabric layer and coating structure of the utility model.

[0023] In the figure: 1. wear-resistant base layer; 2. latex layer; 3. intermediate base layer; 4. base fabric layer; 5. coating layer; 51. primer layer; 52. topcoat layer; 6. air vents. DETAILED DESCRIPTION

[0024] The following embodiments are combined with the accompanying drawings to further illustrate the synthetic leather for automobile interior decoration of the present invention.

[0025] This embodiment provides a synthetic leather for automobile interior, with the side close to the automobile interior as the bottom and the other side as the top. The synthetic leather includes a wear-resistant base layer 1, a latex layer 2, an intermediate base layer 3 and a base fabric layer 4 from bottom to top; the intermediate base layer 3 is a bio-based ultrafine fiber synthetic leather layer.

[0026] Preferably, the thickness of the intermediate substrate layer 3 is 1.2-2 mm. The bio-based ultrafine fiber synthetic leather of the intermediate substrate layer 3 is prepared according to Example 1 in Patent 201910081224.2 of Shaanxi University of Science and Technology.

[0027] Preferably, the wear-resistant base layer 1 is a polyurethane layer with a thickness of 0.8-1.2 mm. The polyurethane layer is purchased from Guangzhou Zanchen New Material Technology Co., Ltd., and the product name is TPU milky white film.

[0028] Preferably, the thickness of the latex layer 2 is 2-3.5 mm. The latex material of the latex layer is purchased from Foshan Qianda Packaging Technology Co., Ltd.

[0029] Preferably, the base fabric layer 4 is a polyester fabric layer with a thickness of 0.5-1 mm. The polyester fabric is purchased from Changshu Xujie Fiber Products Co., Ltd.

[0030] Preferably, the upper surface of the base fabric layer 4 is also coated with a coating 5 .

[0031] Preferably, the coating layer 5 comprises a primer layer 51 and a topcoat layer 52 , and the topcoat layer 52 and the primer layer 51 are sequentially arranged on the base fabric layer 4 .

[0032] Preferably, the primer layer 51 is a silicone modified acrylate coating with a thickness of 0.04-0.08 mm. The coating used for the silicone modified acrylate coating is purchased from Lujia Coatings (Fujian) Co., Ltd., and the product name is LG96007D water-based two-component sealing primer.

[0033] Preferably, the topcoat layer 52 is a waterborne polyurethane coating with a thickness of 0.02-0.07 mm. The coating used for the waterborne polyurethane coating is purchased from Sanheshun (Suzhou) Technology Co., Ltd.

[0034] Preferably, the synthetic leather is provided with a plurality of through-holes 6 from bottom to top.

[0035] The wear-resistant base layer 1, latex layer 2, intermediate base layer 3 and base fabric layer 4 of the present invention can be adhered together by environmentally friendly glue, or can be compounded together by other methods. Among them, the wear-resistant base layer 1 is a polyurethane layer with the advantages of waterproof, breathable, friction-resistant, not easy to age and wear during use, and not easy to fall off after long-term use. The latex layer 2 has excellent softness and resilience, which can enhance the overall softness of the synthetic leather, and the natural latex has antibacterial effects, is not easy to mold and is not easy to deform. The intermediate base layer 3 is a bio-based ultrafine fiber synthetic leather layer, which has an air permeability of ≥10000 (mL / cm2·h), a water vapor permeability of ≥2.0 (mg / cm2·h), does not contain any EU high concern substances (SVHC), and atomization value ≤5mg. The base fabric layer 4 is coated with a primer layer 51 and a topcoat layer 52 in sequence, and the primer layer 51 is a silicone-modified acrylate coating with excellent permeability, waterproofness, anti-deformation and other excellent properties. The topcoat layer 52 is a water-based polyurethane coating, which has excellent matte gloss and oxidation resistance, and improves the aesthetics of the automobile interior.

[0036] The synthetic leather of the utility model is made into a protective cover for automobile interior, which can play a good protective role on the automobile interior, and the matte color makes the automobile interior more beautiful. The air vent 6 is arranged to facilitate the air exchange between the automobile interior and the outside world, and it is not easy to mold.

[0037] The above is a detailed introduction to the embodiments of the present invention. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A synthetic leather for automobile interior, with one side close to the automobile interior as the lower side and the other side as the upper side, characterized in that: The synthetic leather comprises, from bottom to top, a wear-resistant base layer (1), a latex layer (2), an intermediate base layer (3) and a base fabric layer (4); the intermediate base layer (3) is a bio-based ultrafine fiber synthetic leather layer.

2. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The thickness of the intermediate substrate layer (3) is 1.2-2 mm.

3. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The wear-resistant base layer (1) is a polyurethane layer with a thickness of 0.8-1.2 mm.

4. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The thickness of the latex layer (2) is 2-3.5 mm.

5. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The base fabric layer (4) is a polyester fabric layer with a thickness of 0.5-1 mm.

6. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The upper surface of the base fabric layer (4) is also coated with a coating (5).

7. The synthetic leather for automobile interior decoration according to claim 6, characterized in that: The coating (5) comprises a primer layer (51) and a topcoat layer (52), and the topcoat layer (52) and the primer layer (51) are sequentially arranged on the base fabric layer (4).

8. The synthetic leather for automobile interior decoration according to claim 7, characterized in that: The primer layer (51) is a silicone-modified acrylic ester coating with a thickness of 0.04-0.08 mm.

9. The synthetic leather for automobile interior decoration according to claim 7, characterized in that: The topcoat layer (52) is a water-based polyurethane coating with a thickness of 0.02-0.07 mm.

10. The synthetic leather for automobile interior decoration according to claim 1, characterized in that: The synthetic leather is provided with a plurality of ventilation holes (6) extending from bottom to top.

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