Bayer Aktiengesellschaft

Kurt Schreiner

Horst Jager

Richard Schwaebel

The present invention relates to new phthalocyanine reactive dyestuffs which, in the form of the free acid, correspond to the formula I ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, a, b and c have the meaning given in the text of the Application. The phthalocyanine radical Pc can be metal-free, but preferably contains a metal. The invention furthermore relates to processes for the preparation of the dyestuffs of the formula I and to the use of these compounds for dyeing or printing materials containing hydroxyl groups and/or nitrogen.

Phthalocyanine reactive dyestuffs

Phthalocyanine reactive dyestuffs of the formula ##STR1## wherein Pc, A, Z, Y, Q, a, b and c have the meaning given in the description, and their use for dyeing and printing materials containing hydroxyl groups or containing amide groups, such as textile fibres, yarns and fabrics consisting of wool, silk, synthetic polyamide fibres and polyurethane fibres, and for wash-fast dyeing and printing of natural or regenerated cellulose.

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Munich, Georgia

Kurt Schreiner