Etching Machine Corrosion Pretreatment Process

The pretreatment processes for metal corrosion mainly include: photosensitive etching, screen printing, and stickers. Each process has its own advantages and disadvantages. The etching manufacturer can choose the corresponding process according to the actual requirements of their products. Below we will specifically explain the difference between these three processes:

1. Photographic etching: As the name suggests, photo-etching uses the pre-treatment method of exposure and development. The process flow: coating/painting→baking→exposure→development→etching→removal film→finished product; the photosensitive etching process is suitable for higher precision , Such as: stainless steel filter screen etching sheet, screen, lighting, dial etching, double-sided hollowing out of hardware and crafts, etc., while traditional screen printing and stickers are difficult to meet this requirement, and the pre-processing of photosensitive etching Film film can be designed by itself, with low cost and reusable;

2. Screen printing: Screen printing is widely used in stainless steel decorative panels, elevator panels, and advertising signs industries. It is suitable for a batch of products with one pattern. The process flow: silk screen→drying/baking→etching→whitening→returning Film → washing and drying → laminating → finished product; the screen printing and etching process is relatively simple, the etching pattern is relatively simple, the accuracy is not high, and the cost is the lowest;

3. Adhesive stickers: widely used in the signage advertising industry. The biggest feature of stickers is that it is convenient for later coloring (painting), and the stickers can be output on the computer by themselves; process flow: stickers → etching →Cleaning→drying→painting and coloring→high-temperature baking→tear off the adhesive→finished product.