Azo dyestuffs for dyeing and printing cellulose-containing fiber materials in an ink jet process

US5637679A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karin Hassenruck · Mülheim an der Ruhr, DE
• Peter Wild · Odenthal, DE
• Frank-Michael Stohr · Odenthal, DE

Key dates

• Filing date: Jun 7, 1995
• Grant date: Jun 10, 1997
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B43/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

New azo dyestuffs of the formula (I) ##STR1## wherein n in each case independently of one another represents 0 or 1, PA1 a, b and c independently of one another denote 1 or 2, EQU a+c<4, a+b+c=3 or 5 PA1 and PA1 X and Y denote different mono- or bivalent radicals, a process for their preparation and their use for dyeing and printing cellulose-containing fibre materials, in particular paper by means of the ink jet process, have been found.