Fragrance delivery system for liquid detergent compositions

A non-aqueous liquid detergent composition comprising:

• a) from about 49% to about 99.95% by weight, a structured, surfactant-containing liquid phase, said phase fomed by combining:
• i) from about 1% to about 80% by weight of said liquid phase, one or more non-aqueous organic diluents:
• and
• ii) from about 20% to about 99% by weight of said liquid phase, a surfactant selected from the group consisting of anionic, nonionic, cationic surfactants, and mixtures thereof,
• b) from about 0.01% by weight, of a β-ketoester having the formula:
• wherein R is alkoxy derived from a fragrance raw material alcohol;
• R1 and R2 are each hydrogen, R3 has the formula:
• wherein R4, R5, and R6 are taken together to form C6-C30 substituted or unsubstituted aryl;
• and
• c) the balance adjunct ingredients which are substantially insoluble in said liquid phase, said adjuncts comprising particulate material having a size from about 0.1 micron to about 1500 microns, wherein said ingredients are preferably selected from the group consisting of peroxygen bleaching agents, bleach activators, organic detergent builders, sources of alkalinity, and mixtures thereof.

A method for providing enduring fragrance benefits to fabric comprising the step of contacting fabric with a laundry detergent composition comprising:

• a) from about 0.01% by weight, of a β-ketoester having the formula:
• wherein R is alkoxy derived from a fragrance raw material alcohol;
• R1, R2, and R3 are each independently hydrogen, C1-C30 substituted or unsubstituted linear alkyl, C3-C30 substituted or unsubstituted branched alkyl, C3-C30 substituted or unsubstituted cyclic alkyl, C2-C30 substituted or unsubstituted linear alkenyl, C3-C30 substituted or unsubstituted branched alkenyl, C3-C30 substituted or unsubstituted cyclic alkenyl, C2-C30 substituted or unsubstituted linear alkynyl, C3-C30 substituted or unsubstituted branched alkynyl, C6-C30 substituted or unsubstituted alkylenearyl, C6-C30 substituted or unsubstituted aryl, C2-C20 substituted or unsubstituted alkyleneoxy, C3-C20 substituted or unsubstituted alkyleneoxyalkyl, C7-C20 substituted or unsubstituted alkylenearyl, C6-C20 substituted or unsubstituted alkyleneoxyaryl, and mixtures thereof;
• provided at least one R1, R2, or R3 is a unit having the formula:
• wherein R4, R5, and R6 are each independently hydrogen, C1-C30 substituted or unsubstituted linear alkyl, C3-C30 substituted or unsubstituted branched alkyl, C3-C30 substituted or unsubstituted cyclic alkyl, C1-C30 substituted or unsubstituted linear alkoxy, C3-C30 substituted or unsubstituted branched alkoxy, C3-C30 substituted or unsubstituted cyclic alkoxy, C2-C30 substituted or unsubstituted linear alkenyl, C3-C30 substituted or unsubstituted branched alkenyl, C3-C30 substituted or unsubstituted cyclic alkenyl, C2-C30 substituted or unsubstituted linear alkynyl, C3-C30 substituted or unsubstituted branched alkynyl, C6-C30 substituted or unsubstituted alkylenearyl;
• or R4, R5, and R6 can be taken together to form C6-C30 substituted or unsubstituted aryl;
• and mixtures thereof;
• b) at least about 0.01% by weight, of a detersive surfactant selected from the group consisting of anionic, cationic, non ionic, zwitterionic, ampholytic surfactants, and mixtures thereof;
• and
• c) the balance carriers;
• wherein said laundry composition has a pH of from about 7.2 to about 8.9 when measured as a 10% solution in water.