Process for dyeing linear polyesters in the melt

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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546 37, C08K 509, C08K 515, C08K 534

Patent

active

041418816

ABSTRACT:
Process for dyeing linear polyesters in the melt in brilliant deeply colored and highly light-fast dyeings, which process comprises using as dyeing agent a mixture consisting of 0.001-0.2% by weight, relative to the amount of polyester, of a perylene-3,4,9,10-tetracarboxylic acid derivative, and one or more dyes which differ from this derivative and which are soluble in polymers.

REFERENCES:
patent: 3006882 (1961-10-01), Altermatt et al.
patent: 3104233 (1963-09-01), Altermatt
patent: 3112289 (1963-11-01), Stocker
patent: 3372138 (1968-03-01), Bowman et al.
patent: 3842084 (1974-10-01), Graser

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