Detergent compositions containing an organic silver coating agent to minimize silver training in ADW washing methods
AssigneeThe Procter & Gamble Company
InventorsJulie Ann Christie, Fiona Susan MacBeath
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Abstract
There is provided a bleaching composition containing (a) an oxygen-releasing bleaching agent as a source of available oxygen and (b) a non-paraffin oil organic silver coating agent. In one aspect the rate of release of available oxygen is carefully controlled such that the available oxygen is completely released from the composition in a time interval of from 3.5 minutes to 10.0 minutes. In another aspect the composition contains (c) an additional corrosion inhibitor compound.
Claims25
A bleaching composition having enhanced anti-silver tarnishing properties comprising
- (a) an oxygen-releasing bleaching agent as a source of available oxygen, wherein the oxygen-releasing bleaching agent is provided with a controlled release coating which controls the rate of release of available oxygen from the said composition in a wash solution such that the available oxygen is completely released from composition in a time interval of from 3.5 minutes to 10.0 minutes;
- and
- (b) a non paraffin oil fatty acid ester silver coating agent selected from the group consisting of fatty acid triglycerides, diglycerides, monoglycerides, their wholly or partially hydrogenated derivatives, and mixtures thereof;
- wherein the concentration range of the silver coating agent is such that when the said composition is used to wash silverware the said silver coating agent forms a protective coating on the silverware, thereby inhibiting silver tarnishing effects of the oxygen bleach.
A bleaching composition having enhanced anti-silver tarnishing properties comprising
- (a) an oxygen-releasing bleaching agent as a source of available oxygen, wherein the oxygen-releasing bleaching agent is provided with a controlled release coating which controls the rate of release of available oxygen from the said composition in a wash solution such that the available oxygen is completely released from composition in a time interval of from 3.5 minutes to 10.0 minutes;
- and
- (b) a non-paraffin oil organic silver coating agent comprising a fatty ester of a C.sub.1 -C.sub.40 alcohol;
- wherein the concentration range of the silver coating agent is such that when the said composition is used to wash silverware the said silver coating agent forms a protective coating on the silverware, thereby inhibiting silver tarnishing effects of the oxygen bleach.
Dependencies are inferred from the claim text.