6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives

The present invention provides 6-azo-5,5′-dihydroxy-7,7′-disulfo-2,2′-dinaphthylamine derivatives, their use as dyes, dyed paper and formulations comprising them.

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Bibliographic Details
Main Author Lautenbach, Holger
Format Patent
LanguageEnglish
Published 12.05.2009
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Summary:The present invention provides 6-azo-5,5′-dihydroxy-7,7′-disulfo-2,2′-dinaphthylamine derivatives, their use as dyes, dyed paper and formulations comprising them.