PROCESS FOR THE LEVEL DYEING OF SYNTHETIC FIBERS

1. A process for the level dyeing of synthetic fibers with disperse dyestuffs, which comprises dyeing in the presence of a mixture which comprises ethoxylated unsaturated carboxylic acids of 12 to 18 carbon atoms and an ethylene oxide content of 10 to 40 units and sulfosuccinic acid half-esters of alkoxylated polynuclear alkylphenols of the general formula I see diagramm : EP0121887,P6,F1 in which R denotes a radical see diagramm : EP0121887,P6,F2 or see diagramm : EP0121887,P6,F3 X denotes ethylene and/or propylene groups, and R1 denotes a saturated straight-chain or branched alkyl radical of 6 to 14 carbon atoms and in which Y represents hydrogen or has the same meaning as R, n represents numbers from 2 to 25, Z represents numbers from 1 to 9, and Me represents a hydrogen atom, an alkali metal atom or one equivalent of an alkaline earth metal atom.