Chemical etching is a process used to create designs or patterns on materials, typically metals or glass, by using chemical reactions. In this method, a protective layer is applied to the surface, and then a chemical solution is used to remove the unprotected areas, resulting in a detailed image or texture. This technique is commonly used in various industries, including electronics for creating circuit boards, and in art for producing intricate designs. The process allows for high precision and can be used on a variety of materials, making it a versatile tool in manufacturing and design.