Liquid laundry detergent containing an ethoxylated anionic/nonionic surfactant mixture and fabric conditioner
View Patent ↗This invention relates to a aqueous liquid laundry composition which both cleans and conditions fabrics. The composition includes certain alcohol ethoxylates as a nonionic surfactant component, certain alkyl ether sulfates as an anionic component and a quaternary ammonium fabric softening agent. All of the foregoing are in specified proportions.
1. An aqueous liquid laundry composition to both clean and condition fabric comprising:
a. from about 1.5% to about 8% by weight of a nonionic surfactant comprising an alcohol ethoxylate having an alkyl chain length of from about 10 to about 18 carbon atoms and having a degree of ethoxylation of about 7 ethylene oxide moieties;
b. from about 0.5% to about 5% by weight of an anionic surfactant comprising an alkyl ether sulfate having an alkyl chain length of from about 12 to about 18 carbon atoms and having a degree of ethoxylation of about 7 ethylene oxide moieties;
c. from 0 to about 3% by weight of another anionic surfactant selected from the group consisting of alcohol sulfates having the formula R—O—SO 3 Na wherein R is from about 11 to about 18 carbon atoms, C 10 -C 20 oxo alcohols, and alkyl benzene sulfonates having an alkyl chain of from about 8 to about 16;
d. from about 0.1% to about 5% of a quaternary ammonium fabric-softening agent having the general formula (I),
wherein R is an alkyl chain having from about 8 to about 30 carbon atoms and n is from about 1 to about 20;
e. from 0.1 to about 2% by weight of a silicone copolyol carboxylate which will complex with the quaternary softening agent for enhanced performance and compatibility.
2. The composition of claim 1 , wherein said alcohol ethoxyate has an alkyl chain length of from about 14 to about 15.
3. The composition of claim 1 , wherein said alkyl ether sulfate has an alkyl chain length of from about 14 to about 15.
4. The composition of claim 1 , wherein said quaternary ammonium fabric-softening agent is ethyl bis-(-polyethoxy ethanol) tallow ammonium ethosulfate.
5. The composition of claim 4 further comprising from about 1% to about 3% by weight of said another anionic surfactant.
6. The composition of claim 5 , wherein said another anionic surfactant is an alcohol sulfate having the formula R—O—SO 3 Na, wherein R is from about 11 to about 18 carbon atoms.
7. The composition of claim 5 , wherein said another anionic surfactant is an alkyl benzene sulfonate having an alkyl chain of from about 8 to about 16 carbon atoms.
8. The composition of claim 7 , wherein said alkyl benzene sulfonate is sodium dodecylbenzene sulfonate.
9. The composition of claim 1 comprising from about 2% to about 5% of said alcohol ethoxylate having an alkyl chain length from about 14 to about 15 carbon atoms and a degree of ethoxylation of about 7, about 1% to about 4% of said alkyl ether sulfate having an alkyl chain length from about 12 to about 15 carbon atoms and a degree of ethoxylation of about 7, about 0.5% to about 2% of said quaternary ammonium fabric-softening agent comprising the general formula,
wherein R is an alkyl chain having from about 8 to about 30 carbon atoms and n is from about 1 to about 20.
10. The composition of claim 9 comprising from about 1% to about 2% of said another anionic surfactant, wherein said another anionic surfactant is sodium dodecylbenzene sulfonate.
11. The composition of claim 9 wherein said quaternary fabric-softening agent is ethyl bis-(-polyethoxy ethanol) tallow ammonium ethosulfate.
12. The composition of claim 10 wherein said quaternary fabric-softening agent is ethyl bis-(-polyethoxy ethanol) tallow ammonium ethosulfate.