Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups

US4622390A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Fritz Meininger
• Ernst Hoyer · Frankfurt am Main, DE
• Joachim W. Otten, deceased · Offenbach am Main, DE
• by Ursula Otten, heir · Heidelberg, DE
• by Anna G. Rudolph nee Otten, heir · Dillenburg, DE
• Rudolf Fass · Kelkheim, DE

Key dates

• Filing date: Sep 9, 1985
• Grant date: Nov 11, 1986
• Expiry date: Sep 9, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4415
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble disazo dyestuffs of the formula ##STR1## which contain a 1-amino-8-naphthol-3,6- or -4,6-disulfonic acid moiety as a bivalent coupling component and which contain diazo components with fibre-reactive groups characterized by the inclusion of one or two chloro-triazinyl groups and one or two of the six groups defined by the substituent Z, namely, ##STR2## each of which are connected to the benzene moiety of the diazo component; the chloro-triazinyl group is further substituted by a substituted or unsubstituted phenylamino or substituted or unsubstituted naphthylamino group, a substitutent of which may be one of the six groups defined by the Z substituent; if there is only one chloro-triazinyl group in the compound, then the diazo component is also substituted by one of the Z substituents; these compounds are dyestuffs which exhibit a good fixation degree of the dyestuffs in fabrics.