Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [image-making processes and techniques]
6. [printing and printing processes and techniques]
7. printing processes
8. photomechanical processes

Anotations

Scope note:

A photomechanical process that produces continuous tone images in slight relief. A gelatin relief is prepared by a bichromate process and then used to make an intaglio plate. This plate is used as a mold and is filled with pigmented gelatin; the gelatin layer is then pressed onto a paper support. Widely used for fine book illustration from about 1875 to 1900.