What is Photo Etching?

Etching comes from High German "azzen" or Dutch "etsen", which is "corrosion". It is a printing process. The common method is to copy the drawing to a transparent polyester paper. After etching and dyeing, Color prints with uneven three-dimensional lines formed on the surface of the aluminum plate. .

Etching

First coated with

Etching is a method of making prints. It is engraved on a metal plate, then etched with a strong acid to make a gravure, and then printed into a print with ink. Modern methods also use other materials and other chemical caustics. The metal plates used for etching are usually made of copper, zinc or steel. First, a layer of wax is applied. The artist paints with a needle. You can also use a wide knife to draw rough surfaces. The drawn lines and surfaces are removed, and then the wax is removed. Soak in the acid bath or wash with acid, the wax-removed part is corroded and recessed. After completion, wash the wax, apply ink, and wipe away the ink on the surface. Only the ink in the concave line is left, and then turn with pressure. Print it on paper and a print is complete. Hundreds of prints can be printed on one plate until the layout is worn out. In making etchings, the artist sometimes engraved and repaired some lines directly.

Rembrandt's etched `` Christ Preaching '', circa 1648