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Colored plastic mobile phone rear cover manufacturing process

A technology of mobile phone back cover and manufacturing process, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of unprotected edge of colored plastic mobile phone back cover, poor appearance, scattered color difference of coating, etc., to improve the direct connection of products rate, protection from being destroyed, and the effect of protecting the camera

Pending Publication Date: 2022-07-01
伯恩高新科技(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will bring the following problems: (1) The more color layers of the coating layer, the more dispersed the color difference of the coating layer, which will lead to lower yield
(2) Because the coating layer needs to use high refractive index materials, but its thickness is generally only between 5-100nm, a slight change in its thickness will cause a large color difference, because the more coatings, the color levels displayed by the coating layer will result feel bad
(3) When the decorative film is pasted on the inner surface of the 3D plastic shell, the more layers are required, the thicker the coating layer is, and the easier the coating layer is to break in areas with greater stress and strain, resulting in poor appearance
(4) Moreover, the edge of the colored plastic mobile phone back cover is not protected, and it is easy to be lost during installation.

Method used

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  • Colored plastic mobile phone rear cover manufacturing process
  • Colored plastic mobile phone rear cover manufacturing process
  • Colored plastic mobile phone rear cover manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0034] like Figure 1-4 As shown, a hole 7 for installing the camera is provided on the back cover 6 of the colored plastic mobile phone, and a protective cover 9 for protecting the camera is provided on the top of the hole 7, and the protective cover 9 and the hole 7 are seamlessly connected or integrated. After molding, the protective cover 9 is provided with an upright edge 10 or a sloped edge 11 arranged perpendicular to the colored plastic mobile phone back cover 6 . The material of the protective cover 9 is transparent plastic or glass; in this embodiment, the protective cover and the hole are seamlessly and fixedly connected, and the protective cover is provided with an upright edge vertically arranged with the back cover of the colored plastic mobile phone, such as Figure 5 As shown, the material of the protective cover in this embodiment is transparent plastic.

[0035] The four corners and four sides of the colored plastic mobile phone back cover 6 are provided wit...

specific Embodiment approach 2

[0037] The main difference between the second embodiment and the first embodiment is:

[0038] (1) In this embodiment, the reinforcing ribs 8 and the colored plastic mobile phone back cover 6 are integrally formed.

[0039] (2) If image 3 As shown, in this example, the texture layer 2 is arranged on the inner surface of the outer shell layer 1, that is, in contact with the reflective layer 4; the thickness of the outer shell layer 1 is 5 mm, the thickness of the functionalized coating layer 3 is 40 μm, and the colored plastic mobile phone back cover The L*a*b* value of is overall white.

[0040] (3) In this embodiment, the protective cover and the hole are seamlessly connected, but the protective cover is provided with a sloped edge that forms an angle of 45° with the back cover of the colored plastic mobile phone, such as Image 6 , 7 shown. Of course, it can be the slope side of other radians, not limited to 45°.

specific Embodiment approach 3

[0041] The main difference between the third embodiment and the first embodiment is:

[0042] (1) In this embodiment, the reinforcing ribs 8 and the colored plastic mobile phone back cover 6 are integrally formed.

[0043] (2) If Figure 4 As shown, in this example, the textured layer 2 is arranged on both sides of the outer shell layer 1, that is, the textured layer 2 is in contact with the reflective layer 4 and the hardened coating 3 respectively; the thickness of the outer shell layer 1 is 2.5 mm, and the functionalized coating 3 The thickness is 20um, and the L*a*b* value of the colored plastic mobile phone back cover 6 is generally blue.

[0044] (3) In this embodiment, the protective cover and the hole are seamlessly and fixedly connected, but the protective cover is provided with a sloped edge that forms an angle of 60° with the back cover 6 of the colored plastic mobile phone. Of course, it can be the slope side of other radians, not limited to 60°.

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Abstract

The invention discloses a colored plastic mobile phone rear cover manufacturing process, which is characterized in that compared with the prior art, a colored plastic mobile phone rear cover (6) produced by the colored plastic mobile phone rear cover manufacturing process is provided with a hole site (7) for mounting a camera, and four corners and four sides of the colored plastic mobile phone rear cover (6) are provided with fixedly connected reinforcing ribs (8); the reinforcing ribs (8) and the colored plastic mobile phone rear cover (6) are seamlessly and fixedly connected or integrally formed, the colored plastic mobile phone rear cover (6) sequentially comprises a shading layer (5), a reflecting layer (4), a shell layer (1), a texture layer (2) and a functional coating (3), and according to actual requirements, L * a * b * values of the colored plastic mobile phone rear cover (6) comprise a * and b * values of the shell layer (1) and L * values of the reflecting layer (4). A series of problems existing in the colored plastic mobile phone rear cover manufactured by the mobile phone shell rear cover manufacturing process are solved.

Description

technical field [0001] The invention relates to the field of manufacturing the back cover of colored plastic mobile phones, in particular to a manufacturing process of the back cover of colored plastic mobile phones. Background technique [0002] In the process of making the back cover of colored plastic mobile phones, the color difference formula of the color difference meter is commonly used in the industry: CIE L*a*b* color space, L*,*a,b* is the chromaticity value representing the color of the object , that is, the color space coordinates of the color, any color has a unique coordinate value; where L* represents light and shade (black and white), *a represents red and green, and b* represents yellow and blue; it is a modern color difference assessment according to the International Lighting Association. The standard color difference formula recommended by (CIE) and calculated by instruments and computers can be expressed by precise numbers. [0003] The color L*, a*, b*...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29L31/34
CPCB29C45/0055B29C2045/0058B29C2045/0079B29L2031/3437
Inventor 曾文辉杨建文吴超杨俊
Owner 伯恩高新科技(惠州)有限公司