What is the Etching stainless steel finish?
The technical principle of etched stainless steel is as follows. First, a layer of photosensitive ink resistant to corrosion is evenly coated on the surface of stainless steel. Then, it is exposed to ultraviolet rays with a film negative placed on it, causing a chemical reaction in the exposed part of the photosensitive ink. Next, the stainless steel plate is immersed in a weak alkaline sodium carbonate solution for development, causing the coating in the exposed part to fall off and expose the metal surface. After that, the stainless steel plate is placed in ferric chloride solution where iron ions react with the stainless steel surface to etch patterns. Finally, the plate is cleaned after the etching is completed.