Automotive trim composite material

Abstract

The utility model discloses an automotive trim composite material, comprising: a base layer for forming the basic thickness and strength of the composite material; the surface layer comprises a surface layer bottom layer and a surface layer surface layer, and the surface layer bottom layer and the surface layer surface layer are made of transparent plastic; a pattern layer is also arranged between the surface layer bottom layer and the surface layer surface layer; the basic layer and the surface layer are combined into a whole through injection molding, and protruding lines corresponding to patterns of the pattern layer are arranged on the upper surface of the surface layer. The stereoscopic impression of the automotive interior composite material is enhanced, extremely strong touch feeling is provided for a user, the aesthetic effect of the pattern can be further enhanced by combining the protrusions on the surface of the material with the pattern in the material, and rich visual and touch experience is provided for the user.

Description

Technical Field

[0001] This application relates to the technical field of automotive decoration materials, and particularly to an automotive interior composite material. Background Art

[0002] With the development of the times, cars have evolved from simple means of transportation to mobile spaces for people's lives. Therefore, people's requirements for the interior space of cars are also evolving. As a result, automotive interior materials have gradually evolved from traditional materials such as genuine leather to various composite materials because only composite materials can meet the trend of diversified and personalized needs. For automotive interior materials, they need to meet the different aesthetic requirements of various users, including high-class, luxurious, simple, colorful, etc. Correspondingly, people not only put forward requirements for the visual beauty of automotive interior materials but also for the tactile feeling. Existing automotive interior materials still cannot meet the user needs of these new trends, or the production cost of meeting these personalized requirements is extremely high. Summary of the Utility Model

[0003] In view of this, the technical problem to be solved by this application is to provide an automotive interior composite material to solve the problems in existing automotive interior products, such as insufficiently rich and diverse experiences, and the inability to produce personalized interior composite materials at a relatively low cost.

[0004] To solve the above problems, one aspect of this application provides an automotive interior composite material, including: a basic layer for forming the basic thickness and strength of the composite material; a surface layer including a bottom layer and a top layer of the surface layer, both the bottom layer and the top layer of the surface layer being made of transparent plastic; a pattern layer is also provided between the bottom layer and the top layer of the surface layer; the basic layer and the surface layer are integrally combined by injection molding, and raised lines corresponding to the pattern of the pattern layer are provided on the upper surface of the surface layer.

[0005] This application enhances the three-dimensional sense of the automotive interior composite material, providing users with a strong tactile feeling. Moreover, the combination of the raised parts on the material surface and the pattern inside the material can further enhance the aesthetic effect of the pattern, providing users with rich visual and tactile experiences. Its manufacturing process is relatively simple, and it can quickly meet the production of composite materials with different personalized needs by adjusting production materials. Description of the Drawings

[0006] Figure 1 The cross-sectional view of the automotive interior composite material in one of the embodiments of this application is shown;

[0007] Figure 2A It is a schematic diagram of one stage of the manufacturing process of the automotive interior composite material in one of the embodiments of this application;

[0008] Figure 2B ForFigure 2A Another schematic diagram of a stage in the manufacturing process of the automotive interior composite material in the illustrated embodiment. Detailed implementation manners

[0009] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0010] In this application, terms related to directions, such as up, down, top, bottom, inside, outside, high, and low, are based on the position of the composite material in its normal use state as the reference position.

[0011] In this application, the Chinese name of the term IML (In Molding Label) is in-mold insert injection molding. Its surface is a layer of hardened transparent film, the middle is a printed pattern layer, and the back is a plastic layer. Since the ink is sandwiched in the middle, the product can prevent the surface from being scratched and is resistant to friction, and can maintain the vivid color for a long time without fading.

[0012] To provide a personalized, tactile and highly productive automotive interior composite material, in one aspect of this application, an automotive interior composite material is proposed, including: a basic layer for forming the basic thickness and strength of the composite material; a surface layer including a surface layer bottom layer and a surface layer top layer, both the surface layer bottom layer and the surface layer top layer are made of transparent plastic; a pattern layer is also provided between the surface layer bottom layer and the surface layer top layer; the basic layer and the surface layer are integrally combined by injection molding, and raised lines corresponding to the patterns of the pattern layer are provided on the upper surface of the surface layer. The height of the raised lines is at least higher than 0.15 mm. The raised lines enhance the visual effect of the pattern layer and also give the composite material a tactile feel, greatly enhancing the individuality and visual aesthetic effect.

[0013] In one embodiment, the pattern layer of the composite material is formed on the upper surface of the surface layer bottom layer or the lower surface of the surface layer top layer by screen printing.

[0014] In one embodiment, the raised lines of the composite material are formed by mold injection molding, and the inner surface of the mold has grooves with the required pattern patterns.

[0015] In one embodiment, the basic layer of the composite material is formed on the lower surface of the surface layer by injection molding.

[0016] In one embodiment, a positioning structure is provided on the surface layer of the composite material, so that the raised lines formed after the composite material is injection molded correspond to the patterns of the pattern layer.

[0017] In one embodiment, the positioning structure of the composite material is several protrusions distributed on the surface layer, corresponding to the positioning grooves provided on the inner surface of the mold; or the positioning structure of the composite material is several positioning holes distributed on the surface layer, corresponding to the protrusions provided on the inner surface of the mold.

[0018] The following will describe in detail the specific implementation process of the embodiments of the present invention in conjunction with the drawings:

[0019] As Figure 1 shown is a cross-sectional view of an automotive interior composite material in one embodiment of the present application. The composite material includes a basic layer 1 and a surface layer 2 provided above the basic layer 1 (the illustrated angle is the right side). Among them, the basic layer 1 forms the basic thickness and strength of the automotive interior composite material in the embodiment and is formed by injection molding according to the thickness designed by the mold; the surface layer 2 is provided above the basic layer 1 (the illustrated angle is the right side) and forms an integral body with the basic layer 1. In one embodiment, the surface layer 2 itself is another composite material, which includes a surface layer bottom layer and a surface layer top layer (not shown in the figure). A pattern layer is also provided between the surface layer bottom layer and the surface layer top layer. The form of the pattern can be any geometric pattern, texture simulation pattern, pattern of art works, or a collection of colors; the pattern layer is formed on the upper surface of the surface layer bottom layer or the lower surface of the surface layer top layer by screen printing. The surface layer bottom layer and the surface layer top layer are made of transparent plastic; the basic layer 1 and the surface layer 2 are integrally combined by injection molding. The inner surface of the injection mold has grooves with the required pattern patterns, so that protrusion lines 3 are generated on the upper surface of the surface layer 1. Preferably, the protrusion lines 3 correspond to the patterns of the pattern layer. The height of the protrusion lines is at least higher than 0.15 mm. In order to better realize the correspondence between the pattern layer in the surface layer and the grooves in the mold, a positioning structure is provided on the surface layer, so that the protrusion lines formed after the composite material is injection molded correspond to the patterns of the pattern layer. In one embodiment, the positioning structure is several protrusions or positioning posts distributed on the surface layer 2, corresponding to the positioning grooves provided on the inner surface of the mold. The so-called correspondence between the protrusions or positioning posts and the positioning grooves should consider the deformation amount and stretching rate of the surface layer 2 during the injection molding process.

[0020] Another embodiment of the present application also provides a manufacturing process for an automotive interior composite material, including:

[0021] First, prepare a film made by the IML process; as Figure 2A shown in the film 10, the film 10 itself includes a bottom layer and a top layer (not shown in the figure), and a pattern layer is also provided between the bottom layer and the top layer;

[0022] Secondly, design the mold. The inner surface of the mold is etched with grooves with the required pattern patterns and the mold has the shape and thickness required for the composite material; as Figure 2AThe shown mold 20 has a groove 21 provided on its inner wall, and the groove 21 is used to form a protruding texture on the surface of the product;

[0023] Then, the diaphragm 10 is placed into the mold 20 and positioned; hot-melt plastic is injected into the mold 20 so that the hot-melt plastic and the diaphragm 10 become integrated within the mold and the diaphragm forms a protruding texture corresponding to the shape of the groove on the inner surface of the mold after thermal deformation. As Figure 2B shown, after injection molding deformation, the diaphragm 10 placed in the mold will deform according to the shape of the inner wall of the mold, and a protruding texture will be formed on its surface; in order to enhance the artistic effect, the protruding texture is consistent with the shape of the pattern layer in the diaphragm 10. To ensure that the protruding texture is consistent with the shape of the pattern layer in the diaphragm 10, a positioning structure such as positioning posts and positioning grooves needs to be provided in the diaphragm and the mold, and the deformation amount and elongation rate of the diaphragm 10 during the injection molding process need to be considered.

[0024] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, this does not limit the scope of the rights of the present invention. Those skilled in the art can implement the present invention in various variant schemes without departing from the scope and essence of the present invention. For example, the features of one embodiment can be used in another embodiment to obtain another embodiment. Any modification, equivalent replacement, and improvement made within the scope of the technical concept of the present invention shall fall within the scope of the rights of the present invention.

Claims

1. A composite material for automobile interior, characterized in that include: A basic layer, used to form the basic thickness and strength of the composite material; A surface layer, comprising a bottom surface layer and a top surface layer, wherein the bottom surface layer and the top surface layer are made of transparent plastic; A pattern layer is also provided between the surface bottom layer and the surface top layer; The basic layer and the surface layer are combined into one body through injection molding, and the upper surface of the surface layer is provided with protruding lines corresponding to the pattern of the pattern layer.

2. The composite material for automobile interior decoration according to claim 1, characterized in that: The pattern layer is formed on the upper surface of the bottom surface layer or the lower surface of the top surface layer by screen printing.

3. The composite material for automobile interior decoration according to claim 1, characterized in that: The protruding patterns are formed by injection molding of a mold, and the inner surface of the mold has grooves with required patterns.

4. The composite material for automobile interior decoration according to claim 1, characterized in that: The basic layer is formed on the lower surface of the surface layer by injection molding.

5. The composite material for automobile interior decoration according to claim 4, characterized in that: The surface layer is provided with a positioning structure so that the protruding lines formed on the composite material after injection molding correspond to the patterns of the pattern layer.

6. The composite material for automobile interior decoration according to claim 5, characterized in that: The positioning structure is a plurality of protrusions or positioning holes distributed on the surface layer, corresponding to the positioning grooves or protrusions arranged on the inner surface of the mold.

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