Method of removing and preventing redeposition of protein soils using sugar esters
AssigneeEcolab USA Inc.
InventorsCharles A. Hodge, Erin J. Dahlquist, Amanda R. Blattner
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Abstract
A novel approach to the method of removing and preventing redeposition of protein soils on surfaces using sugar esters is disclosed. Protein deposition and streaking and spotting are common on machine washed dishes. Applicants have found a new method of recycling a sump water composition in an automatic dish machine from a first cleaning cycle into subsequent cleaning cycles using a protein-removing/anti-redeposition agent that can remove and prevent redeposition of protein soils on ware washed surfaces.
Claims7
A method of removing protein soils from a surface and preventing redeposition of protein soils onto the surface, the method comprising:
- (a) introducing a wash water composition during a first cleaning cycle, wherein the wash water composition comprises of water and a detergent composition, wherein the detergent composition comprises an alkalinity source;
- (b) introducing a rinse aid composition during the first cleaning cycle, wherein the rinse aid composition comprises of water and a protein-removing/anti-redeposition agent, wherein the protein-removing/anti-redeposition agent comprises a sugar ester;
- (c) washing the surface of the substrate with the detergent composition during the detergent wash step of the first cleaning cycle and the rinse aid composition during the rinse step of the first cleaning cycle, wherein the sugar ester in the protein-removing/anti-redeposition agent forms into sucrose;
- (d) forming a sump water composition after the first cleaning cycle, wherein the sump water composition comprises a mixture of used detergent water composition, used rinse aid composition and sucrose;
- (e) recycling a part of the sump water composition into a second cleaning cycle;
- (f) introducing a wash water composition during the second cleaning cycle, wherein the wash water composition during the second cleaning cycle includes a combination of fresh wash water composition and sump water composition;
- and
- (g) repeating steps (b) through (f) in subsequent cleaning cycles.
Dependencies are inferred from the claim text.