Method for generating protective layer for etching forming of toughened glass cover plate

A tempered glass and protective layer technology, which is applied in the field of hydrofluoric acid etching forming protective layer, to achieve the effects of reducing depreciation, saving equipment investment and plant occupied area, and reducing production costs

Inactive Publication Date: 2013-06-19
城步新鼎盛电子科技有限公司
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  • Claims
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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a method for forming a protective layer for etching and forming a tempered glass cover plate, aiming to solve the problem of forming a protective layer during hydrofluoric acid etching and forming of the target processed product (referred to as substrate glass)

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  • Method for generating protective layer for etching forming of toughened glass cover plate

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Embodiment 1

[0024] Example 1: Using a PVC film with a thickness of 0.25mm and a width of 236mm, process a 200PCS blank label (length 190mm×width 116mm) with a punch and a die, and paste two identical blank labels symmetrically with a pneumatic patch On the upper and lower surfaces of 100PCS substrate glass (length 191mm×width 117mm×thickness 0.7mm), put the above patch glass into an etching basket, and then place the etching basket in a container with a concentration of 75% and a temperature of - In the acid tank of hydrofluoric acid solution at 5°C, soak for 45 minutes, then take out the etching basket from the acid tank, wash it with clean water for about 1 minute, then take the patch glass out of the etching basket, rinse, edge grinding, polishing, dialing Sheets are etched and molded intermediate products. After cleaning, tempering, screen printing, and film coating, the tempered glass cover (Cover-lens) is obtained.

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Abstract

The invention discloses a method for generating a protective layer for etching forming of a toughened glass cover plate. The protective layer generation method comprises the following steps: grinding and cutting PVC (polyvinyl chloride) films to obtain blanks; bonding the blanks on the two surfaces of substrate glass; etching with hydrofluoric acid; and rinsing, edging, polishing, and withdrawing to obtain an etching forming intermediate product. According to the method, touch screen glass cover plates can be simultaneously processed in large quantity, the processing efficiency and the nondefective rate are increased, the equipment investment cost is saved, the material consumption and the production cost are obviously reduced, obvious economic benefits can be achieved, and the technology gets ahead of the same industry and can form an enterprise standard. The hydrofluoric acid chemical forming and the protective layer generation involved in the invention belong to processing techniques which can be widely used in forming of capacitive touch screen glass cover plates.

Description

technical field [0001] The invention relates to a molding technology of a tempered glass cover (Cover lens), in particular to a method for forming a protective layer for hydrofluoric acid etching of a tempered glass cover (Cover lens). Background technique [0002] At present, the same industry both at home and abroad adopts physical methods, that is, cutting, drilling, edging and polishing with numerical control (CNC), to process the glass cover plate of the capacitive touch screen. Its disadvantages are: the processing efficiency of CNC machine tools and other machines is low (the two-head CNC can only process about 200 pieces of 3.5-inch Cove-lens per day), and the investment in equipment and the occupied area of ​​the factory building are relatively large, resulting in depreciation, maintenance costs and financial costs. are high, resulting in high production costs. However, the use of hydrofluoric acid etching molding process to process Cover lens has high work efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00
Inventor 周剑飞杨新湘
Owner 城步新鼎盛电子科技有限公司
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