Regarding the etching of metal signs

Writer：admin Time：2025-01-03 18:08 Browse：23℃

　　Etching of metal signs: Metal signs are the carrier of advertising and promotion, with strong visual impact, eye-catching, and beautiful features, so they are widely used outdoors and indoors.

　　There are many methods for making metal signs, such as screen printing, transfer printing, etc.

　　But among them, etching process is the most commonly used and also the lowest cost process.

　　Metal etching plate is a method of printing text or patterns onto a substrate through corrosion. Its principle is to use chemicals to react with copper plates to generate acid resistant copper salts (i.e. c2+), thereby forming a protective film to protect the copper plate from oxidation;

　　Additionally, hydroxide ions can be generated through electrochemical methods to further prevent oxidation reactions.