Dyeing polyester fibers
AssigneeBASF SE
InventorManfred Daeuble
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Abstract
Polyester fibers are dyed with disperse dyes at temperatures above 100.degree. C. in an aqueous liquor containing, as leveling agents, emulsions of aliphatic esters, nitriles or ketones each containing from 7 to 16 carbon atoms, level shades being obtained.
Claims10
In a process for dyeing polyester fibers with a disperse dye under pressure and at a temperature above 100.degree. C. in an aqueous liquor containing anionic and nonionic surface active agents as an emulsifier, the improvement which comprises carrying out the dyeing such that 1000 parts by weight of said aqueous liquor contain as the leveling agent from 0.3 to 3 parts by weight of an aliphatic compound selected from the group consisting of esters, nitriles and ketones having from 7 to 16 carbon atoms.
Dependencies are inferred from the claim text.