Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by physical form]
7. [fiber and fiber by product]
8. [fiber by product]
9. paper (fiber product)
10. [paper by function]
11. photographic paper

Anotations

Scope note:

A photographic paper used for developing or printing out black and white prints; developed in the 1880s, and still used for this type of chemically-based printing process. The paper is coated with a gelatin emulsion containing a silver bromide salt. The sensitivity of the paper allows photographers to make contact prints and enlargements from positives or negatives with artificial light. The prints may fade, yellow, or develop a dark iridescent appearance with age if not properly processed.