A PROCESS FOR THE PRODUCTION OF A LAYER SUPPORT FOR LIGHT SENSITIVE MATERIALS WITH AN ANTI-ROLL LAYER

摘要

For a waterproof support for light-sensitive materials with two successive coatings of an anti-curling layer applied to the back, gelatine is dried from the sol form in the first coating and hardened in such a way that, after drying of the first coating, the second coating which contains further hardener can immediately be applied without difficulty. Both coatings contain chromium(III) salts as hardener. …The chosen combination of two process steps provides anti-curling layers of extremely low water absorption capacity.