METHOD FOR DYEING, FOULARDING AND PRINTING NATURAL AND REGENERATED CELLULOSE WITH A MONOAZO COLOR, AND METHODS FOR PREPARING A MONOAZO COLOR AND SUITABLE PREPARATIONS CONTAINING SUCH MONOAZ.

摘要

1380994 Monoazo dyes SANDOZ Ltd 11 Feb 1972 [16 Feb 1971] 6477/72 Heading C4P [Also in Division D1] New monoazo dyes, used to dye paper in greenish-yellow shades of formula wherein R, R 1 and R 4 are H, C 1-6 alkyl or C 1-6 alkoxy, R 2 is C 1-6 alkyl, R 3 is H or C 1-6 alkyl, rings A, B, C and D may be further substituted, n and m are 0 or 1 and p is 0-3, with the proviso that the molecule contains at least one SO 3 H group, are prepared by azo coupling.