A method for providing enhanced suds volume and suds duration in
dishwashing using liquid detergent compositions comprising a polymeric
material which is a suds enhancer and a suds volume extender, said
compositions having increased effectiveness for preventing re-deposition
of grease during hand washing are provided. The polymeric material which
are suitable as suds volume and suds endurance enhancers comprise an
effective amount of a quaternary nitrogen-containing monomeric unit and/or
zwitterionic monomeric unit-containing polymeric suds enhancer comprise:
i) units capable of having a cationic charge at a pH of from about 4 to
about 12; provided that said suds enhancer has an average cationic charge
density of 2.8 or less units per 100 daltons molecular weight at a pH of
from about 4 to about 12;
b) an effective amount of a detersive surfactant; and
c) the balance carriers and other adjunct ingredients;
provided that a 10% aqueous solution of said detergent composition has a pH
of from about 4 to about 12.
