Abstract: The invention relates to basic bisazo compounds according to formula (I) wherein all substituents are defined as in Claim 1, their production, their use as dyestuffs as well as material dyed with these dyestuffs.

Abstract: Metal-free compounds of the formula ##STR1## and 1:1 and 1:2 metal complexes thereof and acid addition salts of such metal-free compounds and 1:1 and 1:2 metal complexes,whereineach B is --A.sub.1 --NR.sub.7 R.sub.8 or --A.sub.1 --.sup..sym. NR.sub.7 R.sub.8 R.sub.9 A.sup..crclbar., the two B's being identical,whereineach A.sub.1 is linear or branched C.sub.2-8 alkylene,each R.sub.1 is hydrogen, C.sub.1-4 alkyl, C.sub.5-6 cycloalkyl, phenyl, benzyl or phenylethyl, the two R.sub.1 's being identical,each R.sub.2 is independently halo, hydroxy, nitro, carboxy, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,each T is hydrogen, cyano, --COOR.sub.4, --CON(R.sub.5).sub.2, --SO.sub.2 N(R.sub.5).sub.2,the two T's being identical, ##STR2## wherein each R.sub.3 is independently hydrogen, C.sub.1-4 alkyl, --N(R.sub.5).sub.2 or --CON(R.sub.5).sub.2,each R.sub.4 is C.sub.1-6 alkyl or phenyl(C.sub.1-3 alkyl),each R.sub.6 is C.sub.1-4 alkyl, andeach X.sub.a is --O--, --S-- or --NR.sub.5 --, andX.sub.

Abstract: Compounds of the formula ##STR1## wherein each R is independently --N(R.sub.1).sub.2, --N.sup..sym. (R.sub.2).sub.3 A.sup..crclbar. or hydroxy, whereineach R.sub.1 is independently hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl or aryl orboth R.sub.1 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered saturated heterocyclic ring,each R.sub.2 is independently alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl or aryl ortwo R.sub.2 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered saturated heterocyclic ring orall three R.sub.2 's taken together and with the nitrogen atom to which they are attached form a 5- or 6-membered unsaturated heterocyclic ring, andA.sup..crclbar. is a non-chromophoric anion,each T is independently a bridging radical, andZ is hydrogen or --N.dbd.

Abstract: Described is a process for the production of substantially dustless water-soluble dye or optical brightener compositions, which process comprises mixing a dry, solid inorganic salt, heated to at least 50.degree. C., with a mixture of at least one dye or optical brightener, an adhesive as e.g. sorbitol, a dust binding surface active agent and further additives. Such compositions are negligibly dusty to dustfree, and retain these properties even after storage for months, particularly in the case where spray-dried material is used.