-12% by weight of a half-acid ester starch derivative having the formula ##STR5## wherein R is dimethylene or trimethylene, wherein R' is a C8 -C18 alkyl or alkenyl group, and A is a hydrogen or a monovalent cation; (b) about 0.5-8% by weight of a non-ionic oil; (c) about 0-2% by weight of a cationic lubricant. 2.