Warewashing composition for use in automatic dishwashing machines, and methods for manufacturing and using
First Claim
1. A method for using a warewashing detergent composition, the method comprising:
- (a) diluting a solid warewashing detergent composition with water at a dilution ratio of water to warewashing detergent composition of at least about 20;
1 to form a warewashing detergent use composition, wherein the warewashing detergent use composition comprises;
(i) a cleaning agent comprising a detersive amount of a surfactant;
(ii) an alkaline source in an amount effective to provide the use composition with a pH of at least about 8, wherein the alkaline source comprises at least one of sodium hydroxide, potassium hydroxide, or mixtures thereof; and
(iii) between about 6 ppm and about 300 ppm of a corrosion inhibitor for reducing corrosion of glass, the corrosion inhibitor comprising a source of zinc ion and a source of aluminum ion in amounts sufficient to provide the use composition comprising zinc ion and aluminum ion at a weight ratio of zinc ion to aluminum ion of at least about 2;
1; and
(b) washing ware with the use composition in an automatic dishwashing machine.
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Accused Products
Abstract
A warewashing detergent composition is provided according to the invention. The warewashing detergent composition includes a cleaning agent, an alkaline source, and a corrosion inhibitor. The cleaning agent comprises a detersive amount of a surfactant. The alkaline source is provided in an amount effective to provide a use composition having a pH of at least about 8. The corrosion inhibitor includes a source of aluminum ion and a source of zinc ion. The relative amounts of the source of zinc ion and the source of aluminum ion can be controlled to reduce visible filming when the warewashing detergent composition is used in the presence of hard water. Methods for using and manufacturing a warewashing detergent composition are provided.
74 Citations
12 Claims
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1. A method for using a warewashing detergent composition, the method comprising:
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(a) diluting a solid warewashing detergent composition with water at a dilution ratio of water to warewashing detergent composition of at least about 20;
1 to form a warewashing detergent use composition, wherein the warewashing detergent use composition comprises;(i) a cleaning agent comprising a detersive amount of a surfactant; (ii) an alkaline source in an amount effective to provide the use composition with a pH of at least about 8, wherein the alkaline source comprises at least one of sodium hydroxide, potassium hydroxide, or mixtures thereof; and (iii) between about 6 ppm and about 300 ppm of a corrosion inhibitor for reducing corrosion of glass, the corrosion inhibitor comprising a source of zinc ion and a source of aluminum ion in amounts sufficient to provide the use composition comprising zinc ion and aluminum ion at a weight ratio of zinc ion to aluminum ion of at least about 2;
1; and(b) washing ware with the use composition in an automatic dishwashing machine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification