
Fotogravure pigment papier
Photogravure pigment paper Photogravure is the only form of photo-etching that uses a continues tone film positive. The positive is exposed onto a lightsensitive film of gelatin. This gelatin is called carbon tissue or pigment paper and is made light-sensitive using a photosensitizing solution. The photosensitizing solution is made with distilled water and any of the following: ammonium ...