Cleaning methods and/or articles for hard surfaces
First Claim
1. A method for cleaning hard surfaces comprising contacting said hard surfaces by direct application of an aqueous cleaning solution comprising:
- (a) from about 0.001% to below about 0.5% of an anionic and/or nonionic surfactant;
(b) up to about 6% by weight of GRAS perfume;
(c) a toxicologically acceptable alkali compound;
(d) optionally, a toxicologically acceptable sequestrant/builder;
(e) optionally, a toxicologically-acceptable preservative; and
(f) the balance comprising aqueous carrier selected from water and, optionally, low molecular weight, toxicologically-acceptable organic solvent;
said aqueous cleaning solution having a pH of greater than 11.6;
wherein said aqueous cleaning solution is essentially free of C8-C18 fatty acid or salts thereof; and
wherein said aqueous cleaning solution comprises only food grade ingredients.
1 Assignment
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Accused Products
Abstract
Basic cleaning compositions using toxicologically-acceptable ingredients for cleaning hard surfaces are provided. Compositions safe for use on surfaces which are contacted by food intended for ingestion by humans or lower animals, even when the compositions are incompletely removed from the cleansed surface, are described. Liquid formulations comprising surfactant, such as sodium alkyl sulfate, sodium alkylbenzene sulfonate, etc., and having a pH of above 11.6 are contacted directly onto hard surfaces to remove soil and unwanted deposits. Articles for applying the compositions to hard surfaces by spraying are disclosed.
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Citations
21 Claims
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1. A method for cleaning hard surfaces comprising contacting said hard surfaces by direct application of an aqueous cleaning solution comprising:
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(a) from about 0.001% to below about 0.5% of an anionic and/or nonionic surfactant;
(b) up to about 6% by weight of GRAS perfume;
(c) a toxicologically acceptable alkali compound;
(d) optionally, a toxicologically acceptable sequestrant/builder;
(e) optionally, a toxicologically-acceptable preservative; and
(f) the balance comprising aqueous carrier selected from water and, optionally, low molecular weight, toxicologically-acceptable organic solvent;
said aqueous cleaning solution having a pH of greater than 11.6;
wherein said aqueous cleaning solution is essentially free of C8-C18 fatty acid or salts thereof; and
wherein said aqueous cleaning solution comprises only food grade ingredients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification