CN-116278030-B - Forming method of mobile phone rear cover and mobile phone rear cover

Abstract

The invention relates to the technical field of mobile phone accessory forming, and discloses a mobile phone rear cover forming method and a mobile phone rear cover. The method for forming the mobile phone back cover comprises the steps of performing silk screen printing on a thermoplastic glass fiber plate by using thermoplastic UV ink and transferring textures to form a pattern layer, forming a thermoplastic coating layer by optical coating on the pattern layer, transferring highlight ink on the thermoplastic coating layer by using thermoplastic UV ink to form a highlight layer, forming a base material of the mobile phone back cover by using the thermoplastic glass fiber plate, the pattern layer, the thermoplastic coating layer and the highlight layer, cutting the base material of the mobile phone back cover into a preset shape, and performing hot bending forming on the base material of the mobile phone back cover cut into the preset shape to obtain the mobile phone back cover. The thermoplastic glass fiber board is used as a base material, the thermoplastic UV printing ink silk screen pattern and the highlight layer are used, and the thermoplastic coating layer is formed by optical coating, so that the thermoplastic glass fiber board has good thermoplasticity and toughness, is convenient for hot bending and forming, improves the production efficiency, improves the strength of the mobile phone rear cover, and reduces the production cost.

Inventors

• XU YUNGANG
• LI QINGHUA
• ZHANG CHUNXIANG

Assignees

• 东莞升益科技有限公司

Dates

Publication Date

20260512

Application Date

20230322

Claims (9)

1. 1. The method for forming the mobile phone rear cover is characterized by comprising the following steps: performing silk-screen pattern printing and texture transfer printing on a thermoplastic glass fiber plate by using thermoplastic UV ink to form a pattern layer; Forming a thermoplastic coating layer by optical coating on the pattern layer, modifying the optical coating material by resin and forming a film to obtain the thermoplastic coating layer; Transferring the highlight ink on the thermoplastic coating layer by using thermoplastic UV ink to form a highlight layer; the thermoplastic glass fiber board, the pattern layer, the thermoplastic coating layer and the highlight layer form a mobile phone rear cover base material; cutting the mobile phone rear cover base material into a preset shape, and performing hot bending forming on the mobile phone rear cover base material cut into the preset shape to obtain the mobile phone rear cover.
2. 2. The method for molding a back cover for a mobile phone according to claim 1, wherein the glass fiber plate is impregnated to obtain a thermoplastic glass fiber plate.
3. 3. The method for forming a rear cover of a mobile phone according to claim 2, wherein the step of impregnating the glass fiber sheet to obtain a thermoplastic glass fiber sheet comprises the steps of: pretreating a glass fiber plate; The glass fiber board subjected to pretreatment is impregnated with an impregnating liquid to obtain a thermoplastic glass fiber board.
4. 4. The method for forming a rear cover of a mobile phone according to claim 3, wherein the pre-treating the glass fiber plate comprises the following steps: The thermoplastic glass fiber board is polished or ultrasonically cleaned to increase the surface adhesion.
5. 5. The method of molding a back cover for a cellular phone of claim 2, wherein the impregnating solution is a modified thermoplastic epoxy resin.
6. 6. The method for forming a back cover of a mobile phone according to claim 1, wherein the thermoplastic UV ink is modified with an epoxy polyacrylate or a polyurethane modified epoxy resin.
7. 7. The method for forming a rear cover of a mobile phone according to claim 1, wherein the thickness of the thermoplastic glass fiber plate is 0.1mm to 0.4mm.
8. 8. A mobile phone rear cover, characterized in that the mobile phone rear cover is formed by the forming method of the mobile phone rear cover according to any one of claims 1-7.
9. 9. The method for forming a back cover of a mobile phone according to claim 8, wherein the thickness of the back cover of the mobile phone is 0.4mm-0.45mm.

Description

Forming method of mobile phone rear cover and mobile phone rear cover Technical Field The invention relates to the technical field of mobile phone accessory forming, in particular to a mobile phone rear cover forming method and a mobile phone rear cover. Background With the development of mobile phones and tablet computers, users have increasingly higher requirements on the appearance decoration and hand feeling of electronic devices such as mobile phones and tablet computers. In order to make the appearance of the mobile phone back cover bright and smooth, the materials of the existing mobile phone back cover are mostly PC (Polycarbonate) composite board or glass. The PC composite board has low strength, poor protection, softer glass, brittleness, heavy weight and high manufacturing cost. Therefore, there is a need to provide a method for forming a mobile phone back cover and a mobile phone back cover to solve the above-mentioned problems. Disclosure of Invention Based on the above, an object of the present invention is to provide a method for forming a rear cover of a mobile phone, so as to solve the problems of low strength, fragility, high manufacturing cost and the like of the existing rear cover material of the mobile phone. In order to achieve the above purpose, the invention adopts the following technical scheme: A molding method of a mobile phone rear cover comprises the following steps: performing silk-screen pattern printing and texture transfer printing on a thermoplastic glass fiber plate by using thermoplastic UV ink to form a pattern layer; forming a thermoplastic coating layer by optical coating on the pattern layer; Transferring the highlight ink on the thermoplastic coating layer by using thermoplastic UV ink to form a highlight layer; the thermoplastic glass fiber board, the pattern layer, the thermoplastic coating layer and the highlight layer form a mobile phone rear cover base material; cutting the mobile phone rear cover base material into a preset shape, and performing hot bending forming on the mobile phone rear cover base material cut into the preset shape to obtain the mobile phone rear cover. Further, the glass fiber board is impregnated to obtain a thermoplastic glass fiber board. Further, the method for obtaining the thermoplastic glass fiber board by impregnating the glass fiber board specifically comprises the following steps: pretreating a glass fiber plate; The glass fiber board subjected to pretreatment is impregnated with an impregnating liquid to obtain a thermoplastic glass fiber board. Further, the pretreatment of the glass fiber board specifically comprises the following steps: The thermoplastic glass fiber board is polished or ultrasonically cleaned to increase the surface adhesion. Further, the impregnating solution is a modified thermoplastic epoxy resin. Further, the thermoplastic UV ink is modified with an epoxy polyacrylate or polyurethane modified epoxy resin. Further, the optical coating material is modified by resin and formed into a film to obtain a thermoplastic coating layer. Further, the thickness of the thermoplastic glass fiber sheet is 0.1mm to 0.4mm. Based on the above, another objective of the present invention is to provide a mobile phone back cover, so as to solve the problems of low strength, fragility, high manufacturing cost and the like of the existing mobile phone back cover material. In order to achieve the above purpose, the invention adopts the following technical scheme: a mobile phone rear cover is formed by the forming method of the mobile phone rear cover according to any one of the above schemes. Further, the thickness of the mobile phone rear cover is 0.4mm-0.45mm. The beneficial effects of the invention are as follows: The method for forming the mobile phone back cover comprises the steps of performing silk screen printing on a thermoplastic glass fiber plate by using thermoplastic UV ink and transferring textures to form a pattern layer, forming a thermoplastic coating layer by optically coating on the pattern layer, transferring highlight ink on the thermoplastic coating layer by using thermoplastic UV ink to form a highlight layer, forming a mobile phone back cover substrate by using the thermoplastic glass fiber plate, the pattern layer, the thermoplastic coating layer and the highlight layer, cutting the mobile phone back cover substrate into a preset shape, and performing hot bending forming on the mobile phone back cover substrate cut into the preset shape to obtain the mobile phone back cover. The thermoplastic glass fiber board is used as a base material, the thermoplastic UV printing ink silk screen pattern and the highlight layer are used, and the thermoplastic coating layer is formed by optical coating, so that the thermoplastic glass fiber board has good thermoplasticity and toughness, is convenient for hot bending and forming, improves the production efficiency, improves the strength of the mobile phone rear cover, and