Patent ID: 8207100

Claim:
Liquid fatty acid soap-based concentrate composition comprising: 1) 40 to 80% by wt. fatty acid and/or soap; 2) 0 to 25% by wt. synthetic non-soap surfactant; 3) 10 to 65% by wt. solvent which may be combination of water and/or co-solvents; 4) 0.01 to 3.0% perfume component with a polarity greater than 4 MPa½; wherein said perfume component comprises a benzene ring having attached, to one position on the ring, a C 1 -C 6 alkyl group containing a functional group selected from the group consisting of alcohol, acetate, aldehyde and mixtures thereof; wherein concentrate has a viscosity of between 10,000 and 100,000 cps, as measured at 20° C. in Brookfield Viscometer after two (2) minutes at 10 rpm using Spindle RV7; wherein, when criticalities of perfume and soap-based concentrates are met, when measuring against a non-concentrate liquid soap-based composition comprising 10-30% fatty acid soap and less than 30% total surfactant, said concentrate has a perfume efficiency coefficient (PEC as defined) of >1, measuring undiluted concentrate versus undiluted non-concentrate; and a PEC≧2, measuring diluted concentrate versus diluted non-concentrate.