. . "The composition of claim 1 wherein the alkyl ethoxylated carboxylate is selected from the group consisting of carboxylates of the formula R1 (OC2 H4)n --OCH2 COO- M+ wherein R1 is a C12-15 alkyl, n is from about 7 to about 13, and M is an alkali metal, and mixtures thereof. 6." . .