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US 2007/0181161 A1Published application
Starch removal process
AssigneeEcolab Inc.
InventorsHelmut Maier, Tomoaki Nakasone
Life of this patent
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Abstract
Starch is removed from the surface of an article using a multi-step method that includes presoaking the article in an acidic solution to remove the starch from the surface of the article and washing the article in an alkaline solution to clean the article.
Claims20
A method of removing starch from a surface of an article of ware, the method comprising:
- (a) presoaking the article in an acidic solution for a period of time to degrade and to remove the starch from the surface of the article without scrubbing;
- and
- (b) washing the article in an alkaline solution to cleanse the article.
A method of removing starch particles from a dishware article, the method comprising:
- (a) presoaking the article in an acidic solution for a period of time to degrade and remove the starch particles from the dishware without scrubbing, the acidic solution having a pH range of between approximately 0 and approximately 4;
- and
- (b) washing the article in an alkaline solution.
Dependencies are inferred from the claim text.