发明授权
US4579817A Color photographic recording material containing dye-releasers releasing 6-arylazo-2-amino-3-pyridinol dyes which are chelatable with metal ions 失效
含有与金属离子螯合的6-芳基偶氮-2-氨基-3-吡啶酚染料的染料释放剂的彩色照相记录材料

Color photographic recording material containing dye-releasers releasing
6-arylazo-2-amino-3-pyridinol dyes which are chelatable with metal ions
摘要:
Dyes corresponding to general formula (I) are released imagewise from corresponding dye-releasers in the dye diffusion transfer process. They react with nickel ions to form lightfast, cyan dye-metal complexes having advantageous spectral properties: ##STR1## wherein Q represents the group required for completing an optionally substituted phenyl or naphthyl group;X represents --S--, --SO.sub.2 --, --SO.sub.2 --NR.degree.-- or --SO.sub.2 --O--;R.degree. represents H or alkyl; andR.sup.1 represents an aliphatic, araliphatic or a carbocyclic or heterocyclic aromatic group or, when X represents --SO.sub.2 --NR.degree.--, R.sup.1 represents hydrogen.
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