| abstract |
A process for the rapid hardening of gelatin comprising coating a support with an aqueous gelatin solution containing as a hardener at least one of a halogenated diazine compound, a halogenated triazine compound, a compound having an active vinyl radical, a mucohalogen acid or a derivative thereof and a substituted or an unsubstituted 2,3-dihydroxy-1, 4-dioxane, drying at a constant rate for a period of time and irradiating with a high frequency microwaves is disclosed. |