Novel natural fiber decorating part

Abstract

The utility model belongs to the field of automotive upholstery, and particularly relates to a novel natural fiber decorating part which comprises a surface skin, a natural fiber layer located below the surface skin and a back structure located below the natural fiber layer, the surface skin contains polypropylene or polyolefin materials, and the surface skin permeates into the natural fiber layer and is bonded with the natural fiber layer after being heated. The thickness of the skin is smaller than 0.5 mm, the material of the natural fiber layer is one of flax, white hemp, kenaf and bamboo fiber, the material of the back structure is a polypropylene reinforcing material, and reinforcing ribs and mounting points are arranged on the back structure. According to the utility model, an additional coating process is not needed, the cost of natural fiber parts is reduced, the use limitation of natural fibers in an automobile can be greatly widened, and more imagination space is brought to light weight, modeling and carbon reduction of the automobile.

Description

Technical Field

[0001] The utility model belongs to the field of automobile interior decoration parts, and specifically relates to a novel natural fiber decorative part. Background Art

[0002] With the continuous development of automotive interior parts, the use of long natural fiber materials in automobiles has gradually increased. Common examples include car door panel map pockets, luggage compartment coat racks, and seat back decorative panels. In order to further achieve lightweight, some new energy vehicles also use hemp fibers for dashboards, door panels and other parts. However, they are basically used for internal skeletons, and the surface needs additional coating, which greatly increases the cost, which also limits the use of natural fiber materials in automobiles. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a new natural fiber decorative part, which does not require an additional coating process, reduces the cost of natural fiber parts, and can greatly expand the use restrictions of natural fibers in automobiles.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of natural fiber decorative part, including a skin, a natural fiber layer located under the skin and a back structure located under the natural fiber layer, the skin material contains polypropylene or polyolefin material, the skin is heated and penetrates into the natural fiber layer and bonds with the natural fiber layer, the thickness of the skin is less than 0.5mm, the natural fiber layer material is one of flax, white hemp, kenaf and bamboo fiber, and the back structure material is polypropylene reinforced material.

[0005] Furthermore, reinforcing ribs and mounting points are provided on the back structure.

[0006] Compared with the prior art, the beneficial effects of the utility model are: the utility model can avoid adding a coating process when using natural fiber parts, reduce the manufacturing time of natural fiber parts, and also reduce the use of chemical raw materials such as glue and skin; the utility model reduces labor costs while also reducing the use of chemical raw materials in automobiles, reducing the carbon emission factor of the entire vehicle; after the utility model is formed, the natural fiber layer underneath can be revealed through the skin, and the thickness and color of the skin can be adjusted according to demand, thereby increasing the appearance selection and shape selection of automotive interior parts and enriching the category of automotive interior parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the utility model;

[0008] Figure 2 This is a schematic diagram of the reinforcing ribs and mounting points on the back structure of the utility model;

[0009] Figure 3It is a schematic diagram of the surface structure of the utility model. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0011] See also Figure 1-3 The utility model provides the following technical solutions: a new type of natural fiber decorative part, including a skin 1, a natural fiber layer 2 located under the skin 1 and a back structure 3 located under the natural fiber layer 2. The skin 1 material contains polypropylene or polyolefin material. The skin 1 has good wettability and can be softened and penetrate into the natural fiber layer 2 and bonded with the natural fiber layer 2 after being heated, reducing the conventional coating process and the manufacturing time of natural fiber parts. At the same time, it also reduces the use of chemical raw materials such as glue and skin, reduces the manufacturing cost, and also reduces the carbon emission factor of the whole vehicle. The skin 1 is heat-resistant and will not bond with the heating mold after being heated. The skin 1 material is directly used on the surface of the natural fiber decorative part. The skin 1 has good scratch resistance, light resistance and chemical agent resistance. The thickness of the skin 1 is less than 0.5mm. After the utility model is formed, the material of the natural fiber layer 2 below can be shown through the skin 1 to obtain a unique natural fiber appearance effect. At the same time, the color and transparency of the skin 1 can be adjusted according to actual needs. The transparency of the skin 1 only needs to adjust the thickness of the skin 1, making the appearance selection of the utility model more diversified.

[0012] Specifically, the material of the natural fiber layer 2 is one of flax, white hemp, kenaf and bamboo fiber. The natural fiber layer 2 is formed by sorting, laying out and needling the natural fibers and polypropylene or polyester fibers. The natural fiber layer 2 has excellent strength and low density and is light in weight. The gram weight of the natural fiber layer 2 can be selected according to the design requirements of various parts. In addition, since the natural fiber layer 2 contains polypropylene fibers, it can melt with the polypropylene or polyolefin material in the epidermis 1 under heating, thereby ensuring good bonding between the epidermis 1 and the natural fiber layer 2.

[0013] Specifically, the material of the back structure 3 is polypropylene reinforced material, which has a small compatibility with the natural fiber layer 2, thereby preventing the back structure 3 from separating from the natural fiber layer 2; the back structure 3 can provide the natural fiber decorative parts with sufficiently strong support, so that their dimensional stability is excellent; reinforcing ribs 4 and mounting points 5 are provided on the back structure 3, and the setting of the reinforcing ribs 4 improves the strength, and the setting of the mounting points 5 enables the natural fiber decorative parts to be well installed, greatly increasing the usage scenarios.

[0014] The molding process of the utility model is as follows: first, the skin 1 and the natural fiber layer 2 are molded and bonded by cold pressing after high temperature baking, and the skin 1 and the natural fiber layer 2 cannot be peeled off after molding, and then the back structure 3 is combined with the natural fiber layer 2. There are two ways to combine the back structure 3 and the natural fiber layer 2, one is to firstly injection mold the back structure 3, and then heat and bond them together when the natural fiber layer 2 is hot pressed; the other is to mold by insert injection molding after the natural fiber layer 2 is molded.

[0015] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel natural fiber decorative part, comprising a surface (1), a natural fiber layer (2) located below the surface (1), and a back structure (3) located below the natural fiber layer (2), characterized in that: The surface skin (1) material contains polypropylene or polyolefin material. After being heated, the surface skin (1) penetrates into the natural fiber layer (2) and bonds with the natural fiber layer (2). The thickness of the surface skin (1) is less than 0.5 mm. The material of the natural fiber layer (2) is one of flax, white hemp, kenaf and bamboo fiber. The material of the back structure (3) is polypropylene reinforced material.

2. A novel natural fiber decorative piece according to claim 1, characterized in that: The back structure (3) is provided with reinforcing ribs (4) and mounting points (5).

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