Dyestuff solutions of copper phthalocyanine derivatives for paper dyeing

US4198203A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Groll · Leverkusen, DE
• Friedhelm Muller · Odenthal, DE

Key dates

• Filing date: Apr 28, 1978
• Grant date: Apr 15, 1980
• Expiry date: Apr 28, 1998

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/28
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyestuff solutions of EQU CuPc-(3)(SO.sub.3.sup..crclbar. M.sup..sym.).sub.m in which PA1 CuPc denotes copper phthalocyanine, PA1 m denotes a number from 1.8 to 2.5 and PA1 M.sup..sym. denotes a mixture of A.sub.n.sup..sym. and an amine of the formula ##STR1## in which n represents a number 0.8 to 1.5, PA1 A.sub.n.sup..sym. represents an alkali metal ion or NH.sub.4 ion, PA1 R.sub.1 and R.sub.2 represent hydrogen, C.sub.1 -C.sub.4 -alkyl or (CH.sub.2 --CH.sub.2 --O).sub.p -H and PA1 R.sub.3 represents --(CH.sub.2 --CH.sub.2 --O).sub.p -H, PA1 wherein PA1 p denotes an integer from 1 to 6, are suitable for dyeing paper in turquoise-colored shades.