The final image consists of metallic silver embedded in the gelatin coating.
2.
It forms yellow, monoclinic crystals; made from ammonium hydroxide and ammonium dichromate; used in photography as a sensitizer for gelatin coatings.
3.
Each dye was absorbed, or imbibed, by the gelatin coating on the receiving strip rather than simply deposited onto its surface, hence the term " dye imbibition ".
4.
Using two matrix films bearing hardened gelatin relief images, thicker where the image was darker, aniline color dyes were transferred into the gelatin coating on a third, blank strip of film.
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