Detailed Explanation of Pre treatment Process for Etching Machine Corrosion

The main pre-treatment processes for metal corrosion include photosensitive etching, screen printing, and adhesive bonding. Each process has its own advantages and disadvantages, and etching manufacturers can choose the corresponding process according to their actual product requirements. Below we will explain the differences between these three processes in detail:

① Photo sensitive etching: As the name suggests, photo sensitive etching uses the pre-treatment method of exposure and development. The process flow is: coating/painting → baking → exposure → development → etching → film stripping → finished product; The photosensitive etching process is suitable for high-precision requirements, such as stainless steel filter screen etching sheets, mesh screens, lighting fixtures, dial etching, double-sided hollowing of hardware crafts, etc. Traditional screen printing and adhesive stickers are difficult to meet this requirement, and the photosensitive etching pre-treatment film can be designed by oneself, with low cost and reusable;
   
② Screen printing: Screen printing is widely used in stainless steel decorative panels, elevator panels, and advertising signage industries, suitable for making a batch of products with one pattern. The process flow is: screen printing → air drying/baking → etching → whitening → film stripping → board washing and drying → film coating → finished product; The screen printing etching process is relatively simple, the etching pattern is relatively simple, the accuracy is not high, and the cost is also the lowest;
 
③ Adhesive stickers: widely used in the signage and advertising industry, the biggest feature of adhesive stickers is that they are easy to color (spray paint) in the later stage, and the sticker pattern can be output on the computer by oneself; Process flow: sticking adhesive → etching → cleaning → drying → painting and coloring → high-temperature baking → tearing off adhesive → finished product;