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Curtain coating process of mobile phone rear cover and application of curtain coating process

A mobile phone back cover and flow coating technology, which is applied to the coating, the device for coating liquid on the surface, and special surfaces, etc., can solve the problems of uneven coating, increased material consumption, and uneven coating thickness. Clear image, excellent mirror effect, high adhesion effect

Inactive Publication Date: 2020-08-07
肇庆市哈力化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the coating process for the back cover of mobile phones is mostly spraying. As the size of smartphones is getting larger and larger, spraying often has the problem of uneven coating and unsightly appearance.
[0003] The flow coating process is suitable for the coating film processing of the back cover of large-sized mobile phones, but the amount of materials used in the flow coating process is increased compared with spray coating, resulting in different film thicknesses; in addition, in order to improve the aesthetics of mobile phones, it is often necessary to present Excellent mirror effect, but the existing processing technology is relatively complicated, and the mirror effect is not good

Method used

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  • Curtain coating process of mobile phone rear cover and application of curtain coating process
  • Curtain coating process of mobile phone rear cover and application of curtain coating process
  • Curtain coating process of mobile phone rear cover and application of curtain coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1 provides a kind of flow coating process of mobile phone back cover, comprises the following steps:

[0060] a. Put the back cover of the phone on the figure 1 on the protrusion 2 of the mold shown;

[0061] b. Spread the spray coating material on the back cover of the mobile phone, and stop the spray coating after the spray coating material is soaked in the square tank 3;

[0062] c. After the spray coating material is dry, cut along the edge of the mobile phone back cover and remove it from the mold to obtain the spray coated mobile phone back cover.

[0063] The raw materials for the preparation of the materials used in the step b include: 18 parts by weight of silicone resin (Wacker, SILRESREN 80), hybrid resin (Evonik Degussa, SILIKOPON EF, epoxy silicone hybrid resin) 18 parts by weight, dibutyl phthalate 18.65 parts by weight, anti-fingerprint additive (Shin-Etsu, KY-1023) 0.05 parts by weight, wetting agent (Dow Chemical, X-405) 0.2 parts by weight...

Embodiment 2

[0066] Embodiment 2 provides a kind of flow coating process of mobile phone back cover, comprises the following steps:

[0067] a. Put the back cover of the phone on the figure 1 on the protrusion 2 of the mold shown;

[0068] b. Spread the spray coating material on the back cover of the mobile phone, and stop the spray coating after the spray coating material is soaked in the square tank 3;

[0069] c. After the spray coating material is dry, cut along the edge of the mobile phone back cover and remove it from the mold to obtain the spray coated mobile phone back cover.

[0070] The raw materials for the preparation of the materials used in the step b include: 15 parts by weight of silicone resin (Wacker, SILRESREN 80), hybrid resin (Evonik Degussa, SILIKOPON EF, epoxy silicone hybrid Resin) 15 parts by weight, dibutyl phthalate 15 parts by weight, anti-fingerprint additive (Shin-Etsu, KY-1023) 0.05 parts by weight, wetting agent (Dow Chemical, X-405) 0.2 parts by weight, n...

Embodiment 3

[0073] Embodiment 3 provides a kind of flow coating process of mobile phone back cover, comprises the following steps:

[0074] a. Put the back cover of the phone on the figure 1 on the protrusion 2 of the mold shown;

[0075] b. Spread the spray coating material on the back cover of the mobile phone, and stop the spray coating after the spray coating material is soaked in the square tank 3;

[0076] c. After the spray coating material is dry, cut along the edge of the mobile phone back cover and remove it from the mold to obtain the spray coated mobile phone back cover.

[0077] The preparation raw materials of the materials used in the step b include: silicone resin (Wacker, SILRESREN 80) 20 parts by weight, hybrid resin (Evonik Degussa, SILIKOPON EF, epoxy silicone hybrid resin) 20 parts by weight, dibutyl phthalate 20 parts by weight, anti-fingerprint additive (Shin-Etsu, KY-1023) 0.06 parts by weight, wetting agent (Dow Chemical, X-405) 0.24 parts by weight, non Ionic ...

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Abstract

The invention discloses a curtain coating process of a mobile phone rear cover and application of the curtain coating process. The invention discloses a curtain coating process of the mobile phone rear cover, which comprises the following steps that the surface tension of parts of a curtain coating material is controlled by using a specific mold to ensure that a coating film on the mobile phone rear cover is uniform in thickness and has a mirror surface effect, two resins are compounded by using the curtain coating material, and a surface activity regulator and a solvent which are accurately proparted is combined, therefore, the curtain coating material is good in leveling property, strong in adhesive force and high in drying speed.

Description

technical field [0001] The invention relates to the technical field of mobile phone accessory processing, in particular to a flow coating process and application of a mobile phone back cover. Background technique [0002] With the continuous development of the economy, mobile phones have become an indispensable tool for people. There are more and more styles of mobile phones on the market, and people have put forward higher requirements for the aesthetics of mobile phones. At present, the coating process for the back cover of mobile phones is mostly spraying. As the size of smartphones is getting larger and larger, spraying often has the problem of uneven coating and unsightly appearance. [0003] The flow coating process is suitable for the coating film processing of the back cover of large-sized mobile phones, but the amount of material used in the flow coating process has increased compared with spray coating, resulting in different film thicknesses; in addition, in order...

Claims

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Application Information

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IPC IPC(8): B05D5/06C09D183/04C09D7/20
CPCB05D5/061C08L2205/025C08L2205/03C09D7/20C09D183/04C08L83/04
Inventor 程文
Owner 肇庆市哈力化工有限公司
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