STABLE DYE COMPOSITIONS

摘要

PURPOSE: The aqueous dying compositions, which is including colorants and anionic reagents, are need mixing procedures at every time to use and need high cost measuring device, and difficult to preserve stably after mixing. CONSTITUTION: A compounds of formula as shown as (I) or the stable aqueous dye ompositions thereof wherein:R1, R2 represent amino or hydrogen respectively and one of the radicals is hydroxyl; R3, R4 represent hydrogen or SO3H respectively and one of the radicals is SO3H; R5 represents unsubstituted phenyl or naphthyl radical; R6 is substituted naphthyl radical