400mm double surface spray etching machine

Detailed Product Description

 

In antique prints, etchings were made as follows:

 

1.    wax was rubbed over the printing plate.

2.    the etcher drew the picture on the wax using a tool called a burin. This exposed the metal underneath.the etcher could draw fine or broad lines by using different widths of burin.

3.    the palte was bathed in acid, which ate into the exposed metal.the longer the plate was left in the acid, the deeper then lines etched.deeper lines held more ink so printed darker line.

4.    the etcher might take the plate out of the acid and paint varnish over some lines.this would stop them being etched any more when the plate was put back in the acid.this is called stopping outand let the etcher keep some lines lighter.