Reactive dyestuffs

US3989692A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Horst Jager · Leverkusen, DE
• Manfred Groll · Leverkusen, DE

Key dates

• Filing date: Jul 19, 1974
• Grant date: Nov 2, 1976
• Expiry date: Jul 19, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/016
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Phthalocyanine reactive dyestuffs of the formula ##SPC1## Wherein Pc, R.sub.1, R.sub.2, R.sub.3 -R.sub.5, a, b and c and Z have the meaning given in the description. They are outstandingly suitable for dyeing and printing materials containing cellulose, such as natural and regenerated cellulose, in accordance with the techniques known for the purpose. The new dyestuffs are also suitable for dyeing materials containing amide groups, such as wool, silk and synthetic polyamides. Dyeings obtained on textile cellulose, in particular, distinguish themselves by very good fastness properties, especially fastness to light and to wet processing.