Trisazo dyes of the general formula I ##STR1## where R1 is hydrogen, C1 -C4 -alkyl, halogen, nitro, hydroxysulfonyl, sulfamoyl, mono- or di-C1 -C4 -alkylsulfamoyl, C1 --C4 -...
|5530105||Tetraskisazo compound and ink containing the compound|
A tetrakisazo compound represented by the following formula (1) in the free acid form: ##STR1## wherein Q1 and Q2 independently represent phenylene or naphthylene group which may be optionally substituted, R4, R5...
|5258505||Trisazo compounds, and dye compositions containing same|
Disclosed herein is an azo compound represented by the formula ##STR1## wherein R1, R2 and R3 each are a group or atom selected from the group consisting of a hydrogen atom, alkyl groups having 1 to 4 carbon atoms, a ...
|5213614||Ink, ink jet recording process and recording apparatus using the same|
An ink comprising: water, a water soluble organic solvent, and a colorant represented by the following general formula (I): ##STR1## wherein Q1 is a substituted phenyl group; Q2 is a substituted or unsubstituted p-phenylene or a substituted or unsubs...
|4390470||Tetrakisazo dyes containing a stilbenylene or 2,2'-disulfostilbenylene radical|
Disclosed are compounds of the formula, ##STR1## wherein the X's are the same and are hydrogen or --SO3 M, Y is hydrogen, C1-4 alkyl, C1-4 alkoxy, hydroxy, halogen, --COOM or --SO3 M, K1 and K2
|4097476||Trisazo dyes having a 2,7-(1-amino-3,6-or 4,6-disulfo-8-hydroxynaphthylene) radical|
Disclosed are compounds of the formula, ##STR1## in which X is hydrogen, chlorine, C1-4 alkyl or alkoxy, --SO3 M or --CO2 M, one of the Y's is hydrogen, the other --SO3 M, A is a mono- or di-sulphonaphthyl radic...
|3983101||Water-soluble polyazo compound derived from 4-4-diaminobenzanilide|
Sulphonated azoic dyestuffs of the formula: ##SPC1## Are useful in dyeing cotton, other cellulosic fibers, natural and synthetic polyamide fibers and leather....