Photogelatin Process — synonyms, definition

1. photogelatin process (Noun)

2 synonyms
collotype collotype printing
1 definition

photogelatin process (Noun) — A photomechanical printing process that uses a glass plate with a gelatin surface that carries the image to be reproduced; can be used with one or more colours.

2 types of
planographic printing planography
2 types
hectograph heliotype