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Multi-layer coating product and method for producing the same

A multi-layer coating and product technology, applied in the direction of coating, layered products, layers, etc., can solve the problems of low production efficiency, achieve the effects of improving production efficiency, shortening the time required for debugging laser intensity and scrubbing

Inactive Publication Date: 2008-06-11
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a multi-layer coated product with high production efficiency and a preparation method thereof in order to overcome the low production efficiency of existing multi-layer coated products.

Method used

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  • Multi-layer coating product and method for producing the same

Examples

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preparation example Construction

[0024]The preparation method of the multi-layer coated product provided by the invention comprises sequentially forming an undercoat and a top coat on the surface of a base material, the undercoat and the top coat have alcohol resistance, and the colors of the undercoat and the top coat are different , wherein the method further includes forming an intermediate coating between the primer coating and the top coating, the intermediate coating has no alcohol resistance.

[0025] Wherein, the method for forming the primer layer, the top layer layer and the intermediate layer layer can respectively adopt the existing conventional layer preparation method. For example, the coating composition may be mixed with a diluent, applied to a substrate material, and then dried. The mixing weight ratio of the coating composition and the diluent may be 1:0.5-2. The drying method can be various existing methods, preferably drying at 50-60° C. for 5-15 minutes. Described diluent can use the co...

Embodiment 1-5

[0031] Examples 1-5 were used to prepare the coating compositions used to form the coatings.

[0032] The components shown in Table 1 were mixed and stirred evenly, and the obtained slurry was filtered to remove the residues therein to obtain coating compositions A1, A2, A3, B1 and B2. The amounts of each component in Table 1 below are expressed in parts by weight.

[0033] Table 1

[0034]

Embodiment 6

[0036] Example 6 is used to illustrate the multi-layer coated article provided by the present invention and its preparation method.

[0037] The coating composition A1 obtained in Example 1 was mixed with ethyl acetate at a weight ratio of 1:0.8, sprayed on the surface of a transparent plastic keyboard, and baked at 60° C. for 10 minutes to form a primer layer. Then, according to the same method, the coating composition B1 obtained in Example 4 and the coating composition A2 obtained in Example 2 were used to sequentially form an intermediate coating and a top coating to obtain a multilayer coating product D1.

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Abstract

A product with multi-layer coverings comprises a base material and multi-layer coverings which are disposed on the surface of the base material. The multi-layer coverings sequentially comprises a base covering and a superficial covering from the inner to exterior, the base covering and the superficial covering has alcohol resistance and are different in color, wherein the multi-layer coverings also comprise a middle covering which is disposed between the base covering and the superficial covering and which has no alcohol resistance. The invention further provides the process for preparing the product with multi-layer coverings. The middle covering of the product with multi-layer coverings provided by the invention have no alcohol resistance. When the middle covering and the superficial covering of a portion which needs light transmission are removed by radium engrave, the laser intensity is enabled to be in the range that the laser intensity is higher than the needed laser intensity which can completely engrave the superficial covering and is lower than the laser intensity which can influence the base covering, then the time used to adjust the laser intensity and used to wash is reduced, thereby increasing the working efficiency of the product with multi-layer coverings.

Description

technical field [0001] The invention relates to a multi-layer coated product and its preparation method. Background technique [0002] At present, with the development of electronic products, buttons or keyboards, as functional operating parts of electronic products, have also received more and more attention. The keys or keyboards of electronic products, such as mobile phones, electronic dictionaries, and palmtop computers, generally use plastic as the base material, and spray two layers of coating on the surface of the base material, that is, the base coat and the top coat to obtain multi-layer coated products. Then the backlight part of the key or keyboard, that is, the top coat of the handwriting or pattern part is removed, exposing the bottom coat of this part, so the bottom coat can show the color of the backlight, and the top coat shows the color of the shell. [0003] Generally, laser engraving is used to remove the top coat of the backlight part. The laser intensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00B05D5/00C09D133/08C09D167/00C09D161/00C09D127/06
CPCB05D7/56H01H2209/016H01H2209/002B05D7/52H01H2009/187B05D3/06H01H2229/02B05D5/06Y10T428/265
Inventor 贺茂英刘萌李志新
Owner BYD CO LTD
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