Process for the dyeing or printing of polyacrylonitrile material
AssigneeCiba-Geigy Corporation
InventorPeter Loew
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Abstract
A process is described for the dyeing or printing of polyacrylonitrile materials, which process comprises the use of dyes of the formula ##STR1## wherein R.sub.1 represents a low-molecular, straight-chain alkyl group, R.sub.2 and R.sub.3 independently of one another each represent a low-molecular alkyl group, R.sub.4 represents an aralkyl group, n represents 2 or 3, and X.sup..crclbar. represents an anion. The dyeings obtained are distinguished by good build-up properties of the dyes, and the dyes are particularly suitable for trichromatic dyeings.
Claims5
Process for the dyeing or printing of polyacrylonitrile materials, which process comprises the use of dyes of the formula (1) ##STR4## wherein R.sub.1 represents a low-molecular, straight-chain alkyl group, R.sub.2 and R.sub.3 independently of one another each represent a low-molecular alkyl group, R.sub.4 represents an aralkyl group, n represents 2 or 3, and X.sup..crclbar. represents a anion.
Dependencies are inferred from the claim text.