Material for covering outside of deivce and manufacturing method thereof

Abstract

The invention relates to one kind of coating material and its manufacturing method. The manufacturing method is that: it covers PU fabric layer on the detachable base-paper, after its drying, and then it covers PU bottom layer. After drying, coiling and cooking, it detaches the detachable base-paper off to achieve the PU covering material with colorful texture. In the invention, the surface layer with at least one colorful texture layer and the PU basal layer can be used for covering electronic products, which can increases users' good feeling for electronic products.

Description

technical field [0001] The invention relates to a material for covering the appearance of a device and a manufacturing method thereof, especially to a material characteristic such as a variety of textures and color changes on the surface of a PU material, which is used to cover the appearance of electronic products, so that it has a soft, comfortable touch, and an appearance similar to genuine leather. Diversity and other characteristics. Background technique [0002] The housing materials of electronic products on the market mainly include ABS plastic, aluminum-magnesium alloy, carbon fiber and titanium alloy. Generally speaking, the most popular materials in the market are aluminum-magnesium alloy and titanium alloy. Both have their advantages and disadvantages. The following is a comparison of the characteristics of these materials: [0003] Type 1: Fireproof plastic-ABS [0004] ABS is made of styrene, acrylonitrile and butadiene emulsion copolymerization. Its heat res...

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Problems solved by technology

[0022] Although titanium alloy material has the above-mentioned advantages when applied to notebook computers, the die-casting process cannot be used to manufacture notebook computer casings from titanium alloys, but the stamping process can only be used. Since the crystal structure of titanium metal is HCP, the mechanical properties of the material are relatively brittle. Therefore, the stamping process also has its difficulties; when the titanium alloy notebook computer case is manufactured by the stamping process, it can only be manufactured in pieces. There are many strong ribs in the notebook computer case, and the case is connected with other parts. The connecting part of the shell, the connecting part of the shell and the shell, etc., these parts need to be manufactured separately and then connected by bonding and sheet metal. The number of secondary processing processes is too many, which requires a lot of manpower and cost.

[0023] Based on the above reasons, the shell materials of electronic products on the market mainly include ABS plastic, aluminum-magnesium alloy, carbon fiber and titanium alloy. Generally speaking, although the more popular materials in the market are aluminum-magnesium alloy and titanium alloy, but The biggest advantage of ABS plastic material is the plastic injection process, which has low cost and fast manufacturing. There are many reinforcing ribs in the housing of electronic products, the connection between the housing and other parts, the connection between the housing and the housing, etc. , can be completed at one time by the plastic injection process, but it cannot meet the strength requirements of the shells in today's electronic products, and cannot solve the problem of electromagnetic wave leakage in electronic products; there are also many problems encountered by aluminum-magnesium alloys. In terms of productivity, the defect rate of magnesium-aluminum alloy die-casting is extremely high, and the number of secondary processing processes is large. It also needs to go through anti-rust chemical conversion treatment and coating process, which requires a lot of manpower and cost; titanium alloy manufacturing electronic products The shell of the titanium alloy electronic product cannot be formed at one time by the die-casting process, but only the stamping process of pieces can be used. The stamping process is also difficult. When the shell of titanium alloy electronic products is manufactured by the stamping process, only pieces can be used. In the case of electronic products, there are many reinforcing ribs, the connection between the case and other parts, the connection between the case and the case, etc. These parts need to be manufactured separately, and then connected by bonding and sheet metal , the number of post-processing processes is too many, which requires a lot of cost

[0024] Ordinary electronic product shells are usually made of metallic iron, aluminum, or aluminum-magnesium alloys, or made of plasticized PC or ABS materials, which are hot-pressed or injection-molded. Watches usually have a hard surface in metals, which makes the user feel cold to the touch, or the surface of plasticized materials only changes in color, and cannot produce fluctuations in the texture of the shell surface. It must be integrated into modern electronic products. From the user's point of view, it is impossible to achieve this goal

[0025] And the aluminum-magnesium alloy is used to cover the appearance of its electronic products. Although the material is light in weight and the silver-white appearance, it adds a noble symbol to the relatively expensive electronic products. However, in the process of its manufacture, physical and chemical principles and electrochemical surface treatment methods are applied, and a very large amount of solvent is used to make it have cleaning power, so that it can have cleaning power and replace the processing on the metal surface process, so the waste generated in it is highly polluting

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