Claims
- 1. A light-duty liquid or gel dishwashing detergent composition that provides beneficial skin conditioning, skin feel and rinsability aesthetics, which composition comprises:
- (a) from about 5% to 98% by weight of a detergent surfactant selected from the group consisting of polyhydroxy fatty acid amides; nonionic fatty alkylpolyglycosides; C.sub.8-22 alkyl sulfates; C.sub.9-15 alkyl benzene sulfonates; C.sub.8-22 alkyl ether sulfates; C.sub.8-22 olefin sulfonates; C.sub.8-22 paraffin sulfonates; C.sub.8-22 alkyl glyceryl ether sulfonates; fatty acid ester sulfonates; secondary alcohol sulfates; C.sub.12-16 alkyl ethoxy carboxylates; C.sub.11-16 secondary soaps; ampholytic detergent surfactants; zwitterionic detergent surfactants; and mixtures thereof;
- (b) from about 3% to 20% by weight of a skin feel and rinsability enhancing system which comprises
- i) a nonionic surfactant component comprising C.sub.6 -C.sub.12 alkanols condensed with from about 5 to 15 moles of ethylene oxide; and
- ii) a hydrotrope component comprising C.sub.1 -C.sub.3 alkyl aryl sulfonates, C.sub.6 -C.sub.12 alkanols, C.sub.1 -C.sub.6 carboxylic sulfates or sulfonates, urea, C.sub.1 -C.sub.4 hydrocarboxylates, C.sub.1 -C.sub.4 carboxylates, C.sub.2 -C.sub.4 organic diacids or mixtures of these hydrotrope materials;
- in a nonionic surfactant to hydrotrope weight ratio of from about 10:1 to 1:10; and
- (c) from about 0.001 to 5% by weight of an active protease enzyme;
- (d) from about 0.1 to about 4 % by weight of magnesium ions;
- said composition having a pH of from about 4 to 11.
- 2. A composition according to claim 1 wherein:
- (a) the detergent surfactant comprises from about 20% to 60% by weight of the composition and is selected from the group consisting of polyhydroxy fatty acid amides; C.sub.8-22 alkyl sulfates; C.sub.8-22 alkyl ether sulfates; C.sub.12-16 alkyl ethoxy carboxylates; and C.sub.11 -C.sub.16 secondary soaps;
- (b) the skin feel and rinsability enhancing system comprises from about 6% to 12% by weight of the composition;
- (c) the nonionic surfactant component of the skin feel and rinsability enhancing system comprises C.sub.8 -C.sub.11 alkanols condensed with from about 8 to 12 moles of ethylene oxide;
- (d) the hydrotrope component of the skin feel and rinsability enhancing system is selected from the group consisting of sodium, potassium, calcium and ammonium xylene sulfonates; sodium, potassium, calcium and ammonium toluene sulfonates; sodium, potassium, calcium and ammonium cumene sulfonates; and sodium, potassium, calcium and and mixtures of said hydrotrope materials;
- (e) the weight ratio of ethoxylated alcohol nonionic surfactant to hydrotrope within the skin feel and rinsability enhancing system ranges from about 1:5 to 5: 1; and
- (f) the protease enzyme component comprises from about 0.005% to 3% by weight of the composition and is a serine proteolytic enzyme obtained from Bacillus subtilis, Bacillus licheniformis or mixtures thereof;
- (g) from about 0.1 to about 4 % by weight of magnesium ions.
- 3. A composition according to claim 2 which additionally contains from about 1% to 20% by weight of a suds booster selected from the group consisting of betaines, long chain alcohol ethoxylates, fatty acid amides, amine oxide semi-polar nonionics, sultaines, complex betaines, cationic surfactants and mixtures thereof.
- 4. A composition according to claim 3 which additionally contains from about 0.1% to about 4% by weight of calcium ions.
- 5. A composition according to claim 4 which additionally contains from about 0.001% to about 10% of an enzyme stabilizing system.
- 6. A composition according to claim 5 wherein the composition pH is between about 7 and 10.
- 7. A light-duty liquid or gel dishwashing detergent composition that provides beneficial skin conditioning, skin feel and rinsability aesthetics, which composition comprises:
- (a) from about 15% to 35% by weight of an anionic surfactant selected from the group consisting of C.sub.8 -C.sub.22 alkyl ether sulfates containing from about 1 to 30 ethylene oxide moieties per molecule;
- (b) from about 3% to 8% by weight of a polyhydroxy fatty acid amide nonionic surfactant of the formula: ##STR6## wherein R is a C.sub.9 -C.sub.17 alkyl or alkenyl, p is from 1 to 6; and Z is glycityl derived from a reduced sugar or alkoxylated derivatives thereof;
- (c) from about 4% to 8% by weight of an ethoxylated alcohol nonionic surfactant comprising one or more C.sub.8 -C.sub.11 alkanols condensed with from about 8 to 12 moles of ethylene oxide;
- (d) from about 2% to 7% by weight of a hydrotrope selected from the group consisting of sodium, potassium, ammonium and calcium xylene and toluene sulfonates;
- (e) from about 0.1 to 40 Anson Units per kilogram of composition of a serine proteolytic enzyme obtained from Bacillus subtilis, Bacillus licheniformis or mixtures thereof; and
- (f) from about 2% to 15% by weight of a suds booster selected from the group consisting of betaines and amine oxide semi-polar nonionic surfactants;
- said composition having a pH of from about 7 to 10.
- 8. A composition according to claim 7 which additionally contains from about 0.5% to 1% by weight of calcium ions.
- 9. A composition according to claim 8 wherein said calcium and/or magnesium ions are provided at least in part by compounds selected from the group consisting of hydroxides, oxides, chlorides, formates, acetates, and mixtures of these compounds.
- 10. A composition according to claim 8 wherein calcium ions are provided at least in part by the hydrotrope material which is used in said composition.
- 11. A method for soaking hands in the context of a manual dishwashing operation, with reduced skin irritation resulting therefrom, which method comprises:
- 1) preparing an aqueous dishwashing solution from an effective amount of a dishwashing detergent composition according to claim 1; and
- 2) immersing the hands of the dishwasher in said dishwashing solution for a period of time which is effective to complete hand dishwashing operations.
- 12. A handsoaking method according to claim 11 wherein the dishwasher's hands are immersed in said dishwashing solution for a period of at least about 15 minutes.
- 13. A handsoaking method according to claim 11 where the dishwaher's hands are immersed in said dishwashing solution for a period of at least about 30 minutes.
Parent Case Info
This application claims benefit to provisional application 60/009,994 filed Jan. 5, 1996.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/US96/20168 |
12/17/1996 |
|
|
7/2/1998 |
7/2/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO97/25397 |
7/17/1997 |
|
|
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2049097 |
Feb 1992 |
CAX |