thus the key dye molecule dye site interaction is ionic cationic site of dye molecule and anionic site in polymer chain additional information regarding suitable basic dyes is readily available in the literature and thus such is not included herein dye bath testing has demonstrated that the compound of example i 50 active can consistently be used pound for pound in place of the current preferred commercial migrator leveler btmac 60 active in many cases it has been found that the compound of example i can be used at 67 of the level of btmac i e 2 owf on the weight of the fabric vs 3 owf foam testing in a jfo jet dye machine has indicated that the compound of example i generated only a slightly higher level of foam 1 57 cm vs 1 41 cm than that generated by btmac these levels are substantially equivalent foam testing in a jfo jet dye machine has indicated that the compounds of the present invention wherein r is an alkyl group having 7 to 9 carbon atoms exhibit substantially lower foam than similar compounds wherein the r group is an alkyl group containing 11 to 21 carbon atoms thus the compounds of the present invention are useful in the absence of additional defoaming agents the use of the claimed.