Process for dyeing and printing cellulose fibres
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United States of America Patent
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-
Jul 7, 1981
Grant Date -
N/A
app pub date -
Feb 22, 1980
filing date -
Mar 8, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to dye and print cellulose fibres swollen with water-miscible swelling agents or fibre blends containing these fibres, the fibres are treated with a dyestuff of the general formula ##STR1## wherein Pc denotes the radical of a Cu phthalocyanine, Ni phthalocyanine or Co phthalocyanine molecule, Ar denotes aryl, Z.sup.(+) denotes a hydrogen ion, an alkali metal ion or an ammonium ion, Hal denotes chlorine or bromine, x denotes a number from 2 to 4, y denotes 0 or 1 and x+y.ltoreq.4, and z denotes a number from 0 to 4, and the dyestuff is fixed by heat treatment.
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