| abstract |
SUMMARY A transparent or translucent fabric softening composition comprising a biodegradable fabric softening active and an added chelating agent is disclosed. The biodegradable fabric softening active preferably has the formula (1) Wherein each R substituent is hydrogen or a short chain C 1 -C 6 , preferably C 1 -C 3 alkyl, or hydroxyalkyl group such as methyl (most preferred), ethyl, propyl , Hydroxyethyl, etc., benzyl, or mixtures thereof, wherein each m is 2 or 3, each n is 1 to about 4, preferably 2, and each Y is -O — (O) C—, — (R) N— (O) C—, —C (O) —N (R) —, or —C (O) —O—, preferably —O— (O ) C-, and the sum of R 1 (to which 1 is added when Y is —O— (O) C— or — (R) N— (O) C—) is C 6 -C is 22, preferably C 12 through 22, and more preferably from C 14 -C 20, only one of R 1 or If the sum of YR 1 is less than about 12, then the sum of the other R 1 or YR 1 is at least about 16 and each R 1 is a long chain C 5 -C 21 (or C 6 -C 22 ), Preferably it is a C 9 -C 19 (or C 9 -C 20 ), most preferably a C 11 -C 17 (or C 12 -C 18 ) linear, branched, unsaturated or polyunsaturated alkyl; The average iodine value of one parent fatty acid is from about 20 to about 140). The chelating agent is preferably diaminetriaminepentaacetic acid. The composition exhibits excellent transparency and has a haze of less than 90%, preferably less than 50%, in the transmission mode of Hunter color analysis. |