Patent ID: 7304027

Claim:
A liquid fabric softener composition comprising: a. from about 1% to about 40% of an ester quat; b. from about 0.01% to about 5% of a borate salt wherein said borate salt is selected from the group consisting of Na 2 O/2B 2 O 3 /1OH 2 O, Na 2 O/2B 2 O 3 /4H 2 O, 2CaO/3B 2 O 3 /5H 2 O:CaO, Na 2 O/2CaO/5B 2 O 3 /16H 2 O, and 5MgO/MgCl 2 /7B 2 O 3 ; c. from about 0.01% to about 1.0% of a proton-donating agent; and d. the balance water, wherein the pH of the final composition is between about 3.0 and 4.0.