from about 0 1 to about 15 0 and preferably from about 0 2 to about 10 0 and most preferably from about 0 3 to about 5 0 by weight substituted vegetable oil is used preferred substituted vegetable oils are sulfated caster oil such as sco 50 and sco 75 both made commercially available by b f goodrich the fatty acid or fatty acid ester which may be used in this invention includes fatty acids or there esters of stearic oleic palmitic lauric isostearic myristic or behenic acids as well as mixtures thereof it is also understood that the fatty acid or esters thereof which may be used in this invention can comprise a mixture of compositions such as carnauba wax candelilla wax and natural or synthetic bees wax the amount of fatty acid or esters thereof which may be used in the composition of this invention is typically from about 0 1 to about 10 0 and preferably from about 0 2 to about 5 0 and most preferably from about 0 3 to about 3 0 by weight fatty acid ester based on total weight of the composition for improving substrate characteristics including all ranges subsumed therein the quaternary ammonium compounds which may be used in this invention include any of those typically found in fabric conditioning products such quaternary ammonium compounds include dialkyldimethylammonium chlorides and trialkylmethyl ammonium chlorides wherein the alkyl groups have from about 12 to about 22 carbon atoms other quaternary ammonium compounds which may be used are for example ester containing quaternary ammonium compounds n.