摘要:
Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to 3 sulfonic groups and further optionally having an alkyl group or alkoxy group, R1 and R2 represent each independently a hydrogen atom, alkyl group or alkoxy group, and R3 represents an amino group or hydroxyl group.).
摘要:
A process for printing an image on a substrate comprising applying thereto a composition comprising a liquid medium and a tris-azo compound of Formula (1) or salt thereof: wherein: A is an optionally substituted alkenyl, homocyclic or heterocyclic group; L1 and L2are each independently optionally substituted aryl or heteroaryl; and m and n are each independently 0 or 1 such that m+n is 1 or 2; wherein: (i) the compound of Formula (1) is optionally in the form of a metal chelate; and (ii) at least one of L1 and L2 carries at least one substituent selected from sulpho, carboxy, C1-4-alkoxy and C1-4-alkoxy-OH. Also claimed are compositions and compounds comprising Formula (1).
摘要:
Black trisazo dyes for cellulosic textiles, leather and especially paper having the structure ##STR1## where A is ##STR2## one of B.sub.1 and B.sub.2 is hydrogen and the other is --SO.sub.3 M or a mixture thereof, and M is hydrogen, sodium, potassium, lithium or --HNR.sub.1 R.sub.2 R.sub.3 wherein R.sub.1, R.sub.2 and R.sub.3 represent the same or different substituents selected from hydrogen, lower alkyl and lower hydroxyalkyl, and stable liquid concentrates of these dyes are described.
摘要:
A process for printing an image on a substrate including applying thereto a composition comprising a liquid medium and a tris-azo compound of Formula (1) or salt thereof: wherein: A is an optionally substituted alkenyl, homocyclic or heterocyclic group; L1 and L2 are each independently optionally substituted aryl or heteroaryl; and m and n are each independently 0 or 1 such that m+n is 1 or 2; wherein: (i) the compound of Formula (1) is optionally in the form of a metal chelate; and (ii) at least one of L1 and L2 carries at least one substituent selected from sulpho, carboxy, C1-4-alkoxy and C1-4-alkoxy-OH. Also claimed are compositions and compounds comprising Formula (1).