Patent ID: 8546314

Claim:
A surface treatment composition comprising: a) from about 6% to about 20%, by weight of the composition, of cationic polymer wherein the cationic polymer is poly(diallyldimethylammonium chloride/co-acrylic acid) copolymer (polyquaternium-22); b) from about 6% to about 40%, by weight of the composition, of anionic surfactant; and c) from about 4% to about 15%, by weight of the composition, of a shielding salt, wherein the shielding salt: has a molecular weight of from about 25 to about 500 and is incapable of lowering the surface tension of water below 50 mN/m when added to water at concentrations of up to 0.01M; wherein the weight ratio of anionic surfactant to cationic polymer is between about 0.5:1 and about 4:1, and wherein the weight ratio of shielding salt to cationic polymer is between about 0.3:1 and about 3:1.