Automatic dishwashing compositions containing a halogen dioxide salt and methods for use with electrochemical cells and/or electrolytic devices
AssigneeThe Procter & Gamble Company
InventorsWilliam Michael Scheper, Kenneth Nathan Price, Mario Elmen Tremblay, Paul Joseph Drzewiecki
Life of this patent
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Abstract
The present invention relates to automatic dishwashing detergent compositions and methods of using compositions comprising halogenated salts, phosphate and/or silicate in conjunction with electrolyzed water in automatic dishwashing appliances comprising an electrochemical cell and/or electrolytic device for treating tableware to improve cleaning, sanitizing and stain removal by controlling hardness, corrosion and dispersancy.
Claims52
An automatic dishwashing composition for treating tableware in an automatic dishwashing appliance comprising an electrochemical cell for improved tableware cleaning, sanitizing, and/or stain removal, said composition comprising:
- (a) greater than about 0.1% of a halogen dioxide salt having the formula (M)x(XO2)y, wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity, and wherein x and y are chosen such that the salt is charge balanced;
- and
- (b) a component selected from the group consisting of a builder, suds suppressor, perfume, enzyme, bleach-scavenging agent, a metal-protecting agent, and mixtures thereof;
- and
- (c) optionally, at least one adjunct ingredient;
- wherein said composition is free of bleach and is used in conjunction with electrolyzed water.
A liquid, liquitab, and/or gel automatic dishwashing composition for treating tableware in an automatic dishwashing appliance comprising an electrochemical cell for improved tableware cleaning, sanitizing, and/or stain removal, said composition comprising:
- (a) at least about 0.1%, by weight of the composition, of a halogen dioxide salt and/or halogenated salt having the formula (M)x(XO2)y, wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity, and wherein x and y are chosen such that the salt is charge balanced;
- (d) a component selected from the group consisting of a builder, suds suppressor, perfume, enzyme, bleach-scavenging agent, a metal-protecting agent, and mixtures thereof;
- and
- (b) an effective amount of an enzyme;
- and
- (e) an effective amount of a thickening agent;
- and
- (f) optionally, at least one adjunct ingredient;
- wherein said liquid, liquitab, and/or gel composition is free of bleach and is used in conjunction with electrolyzed water.
A method of treating tableware in an automatic dishwashing appliance comprising an electrochemical cell and/or electrolytic device that results in improved tableware cleaning, sanitizing, and/or stain removal, said method comprising the steps of:
- (a) placing tableware in need of treatment in said appliance;
- (b) providing an automatic dishwashing composition comprising greater than about 0.1% of a halogen dioxide salt having the formula (M)x(XO2)y, wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity, and wherein x and y are chosen such that the salt is charge balanced;
- and a component selected from the group consisting of builder, suds suppressor, perfume, bleach-scavenging agent, metal-protecting agent, and mixtures thereof, during a wash and/or a rinse cycle in said appliance;
- (c) passing an aqueous electrolytic solution through said electrochemical cell and/or electrolytic device to generate at least some electrolyzed water in the wash and/or rinse liquor of said appliance;
- and
- (d) contacting said tableware with said electrolyzed water.
A composition of matter for treating tableware in the wash and/or rinse liquor of an automatic dishwashing appliance comprising an electrochemical cell and/or electrolytic device for improved tableware cleaning, sanitizing, and/or stain removal, said composition of matter comprising:
- (a) at least some electrolyzed water comprising halogenated mixed oxidants;
- (b) a composition comprising greater than about 0.1% of a halogen dioxide salt having the formula (M)x(XO2)y, wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity, and wherein x and y are chosen such that the salt is charge balanced;
- (c) optionally, at least one adjunct ingredient selected from the group consisting of builder, suds suppressor, perfume, enzyme, bleach-scavenging agent, a metal-protecting agent, an electrolysis precursor compound contained within a medium for controlled release, and mixtures thereof.
A liquid, liquitab, and/or gel automatic dishwashing composition for treating tableware in an automatic dishwashing appliance comprising an electrochemical cell for improved tableware cleaning, sanitizing, and/or stain removal, said composition comprising:
- (a) at least about 0.5%, by weight of the composition, of a salt having the formula (M)x(XO2)y and/or wherein X is F, Cl, Br, or I and wherein M is a metal ion or cationic entity, and wherein x and y are chosen such that the salt is charge balanced;
- (b) a component selected from the group consisting of a builder, suds suppressor, perfume, enzyme, bleach-scavenging agent, a metal-protecting agent, and mixtures thereof;
- (c) an effective amount of a thickening agent;
- and
- (d) optionally, at least one adjunct ingredient wherein the composition is used in conjunction with electrolyzed water.
Dependencies are inferred from the claim text.