| 摘要 |
There is described a waterproof support material for light-sensitive materials with an anti-curl layer applied in two successive coatings on the reverse side. With the first coating, gelatin is dried out from the sol form and hardened in such a manner that, after the drying of the first coating, the second coating, which contains additional hardening agent, can be applied immediately without difficulty. Chromium(III)-salts are contained in both coatings as hardening agents. Through the selected combination of 2 process steps, anti-curl layers of extremely low water absorption capacity are obtained.
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