Dyeing and/or printing textile materials

摘要

Metal-free or metalliferous phthalocyanine dyes of the formula in which Pc is a phthalocyanine radical, R1 is H or an aliphatic radical, R2 is an aliphatic, araliphatic, aromatic or cycloaliphatic radical and in which R1 and R2 are free of substituents which react with the OH-groups of cellulose, Y is an anion and m is an integer 1-6, are obtained by reaction of a compound with an amine and, if desired, by conversion of the reaction product into a salt of an acid other than hydrohalic. Suitable metals to be contained in the phthalocyanine residue are Cu, Co, Ni or Fe. The term "phthalocyanine residue" includes those residues substituted by halogen or aryl attached direct or via bridge members as well as azaphthalocyanines and their phenyl derivatives. A number of suitable amines are specified, some of which have one or more of the following groups in their groups R1 and R2: hydroxy, methoxy, ethoxy, cyano and mercapto groups. Examples are given.ALSO:Textile materials of natural or regenerated cellulose are dyed and/or printed with an acid liquor or paste containing a water-soluble phthalocyamine dye of the formula wherein R1 is H or an aliphatic radical, R2 is an aliphatic, araliphatic, aromatic or cycloaliphati radical said radicals R1 and R2 being free from substituents which react with cellulose under acid conditions, Y is an anion and m is an integer between 1 and 6. The above dyes may be derived from metal free or Cu, Co, Ni or Fecontaining phthalocyanine halomethyl compounds which are reacted with monoamines, especially secondary amines having a total of 3-12 C atoms. The anions may be radicals or inorganic or organic acids or acid salts of polybasic acids. The dye liquors and partes preferably have a pH of 3-4 for which purpose acids may be added and may contain neutral salts and the usual auxiliaries. Dyeing may be accomplished by known methods, e.g. the exhaust process or the pad-steam, pad-hot air or pad-batch method. Printing may be carried out using an emulsion printing paste. Examples of dyeing and printing cotton and spun rayon are given.