| 摘要 |
<p>Developers for gelatine emulsions, which are to be subsequently hardened by treatment with dialdehydes or bisulphite compds. of dialdehydes, contain 1-40 mg/litre of 1,2-triazoloanthraquinones (I) as clarifiers: The clarifiers (I) provide a favourable fog/sensitivity ratio. The dialdehyde hardener is pref. OHC-CH2ACH2-CHO (where A = -(CH2)n-, -CH(CH3)-, S, O, NH, Se or NR; R = Me, Et, or Pr; n = 0, 1 or 2).</p> |
