Crompton & Knowles Corporation

Other

Howard L Smith

David A Brode

Acid yellow dye and method for using same

This invention relates to new compounds having the structure: ##STR1## wherein M is H, Na, K, Li, N(R).sub.3 H and R is H, lower alkyl or lower hydroxy alkyl and R.sub.1 is oxygen, sulfur, imino, lower alkylimino, cyanoimino and carbamoylimino moieties. The new compounds are useful as fluorescent greenish-yellow dyes for paper.

Sulfonated naptho[1,2]triazole azo barbituric acid derivatives

New trisazo compounds that are useful as developed direct black dyes for cellulosic textiles and as self-shade dyes for paper and leather having the structure: ##STR1## wherein R' is at least one of the following groups: ##STR2## and M is H, Na, K, Li, N(R).sub.3 H where R is H, lower alkyl or lower hydroxyalkyl and each of the R groups can be the same or different.

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Douglassville, PA, United States of America

Howard L Smith