| 摘要 |
Water-insoluble naphthalic acid imide dyestuffs of the following formula: <IMAGE> (I) wherein D is <IMAGE> wherein R1 is C1-C8 alkyl which may be substituted, R2 is hydrogen, halogen, lower alkyl, lower alkoxy or cyano, X is oxygen or sulfur, and m is 0 or 1; A is phenylene, alkylene, aralkylene or -C2H4OC2H4-; B is oxygen, sulfur or <IMAGE> wherein R3 is hydrogen or lower alkyl; Y is a 6-membered nitrogen-containing heterocyclic ring having at least one active halogen atom; and n is 0 or 1.
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