NAVY BLUE AND BLACK MIXTURES, METHOD FOR THE PRODUCTION THEREOF, AND THEIR USE FOR DYING MATERIAL CONTAINING HYDROXY GROUPS

摘要

The invention relates to mixtures of vat dyes for carrying out shade-stable dyeings in navy blue to black tones containing C.l. Vat Black 9 and at least one of the following dyes: C.l. Vat Blue 18, C.l. Vat Blue 19, C.l. Vat Blue 22, C.l. Vat Blue 6 and halogenated 16,17-diethyl-dibenzanthrone derivatives; C.l. Vat Violet 13, C.l. Vat Black 20 and, optionally, a C.l. Vat Black 65. The invention also relates to a method for producing these mixtures by mechanically mixing the constituents, and to their use for carrying out shade-stable dyeing and printing of cellulose material.