Compositions and methods for removing soil from surfaces

Abstract

The present invention relates to a an aqueous composition for removing soils from a surface to be cleaned, formed from water, a detergent mixture and a rinse aid, wherein the detergent mixture comprises a peroxidation catalyst and wherein the rinse aid comprises an oxygen source. Such a composition may provide a more effective cleaning behaviour. The present invention further relates to a method for removing soil from a surface to be cleaned comprising applying to the surface to be cleaned a composition according to the invention.

1 . An aqueous composition for removing soils from a surface to be cleaned, formed from water, a detergent mixture and a rinse aid, wherein the detergent mixture comprises a peroxidation catalyst and wherein the rinse aid comprises an oxygen source. 
     
     
         2 . The composition of  claim 1 , wherein the peroxidation catalyst is selected from the group consisting of manganese and iron based catalysts, such as MnTACN, MnDTNE, iron based catalysts comprising bispidon type ligands, FeTamL, Mn(II)oxalate, 1,2:4,5-Di-O-isopropylidene-β-D-erythro-2,3-hexodiulo-2,6-pyranose, and Tinocat Mn catalysts. 
     
     
         3 . The composition of  claim 1 , wherein the oxygen source comprises a peroxygen compound, such as a peroxide and/or a percarboxylic acid. 
     
     
         4 . The composition of  claim 1 , wherein the detergent mixture is comprised in the composition with an amount of ≧0.1 g/L to ≦10 g/L. 
     
     
         5 . The composition of  claim 1 , wherein the catalyst is present in the detergent mixture with an amount of ≧0.000001 g/L to ≦0.1 g/L. 
     
     
         6 . The composition of  claim 1 , wherein the rinse aid is comprised in the composition with a concentration of 0.01 g/L to 10 g/L. 
     
     
         7 . The composition of  claim 1 , wherein the oxygen source is present in the rinse aid with an amount of ≧0.001 g/L to ≦6 g/L. 
     
     
         8 . The composition of  claim 1 , wherein the detergent mixture for forming the composition comprises at least
 about ≧20 wt.-% to ≦80 wt.-% of an alkalinity source;   about ≧1 wt.-% to ≦50 wt.-% of chelators and/or builders;   about ≧1 wt.-% to ≦20 wt.-% of a water conditioning agent;   about ≧0.00001 wt.-% to ≦1.0 wt.-% of the peroxidation catalyst; and   about ≧0.1 wt.-% to ≦20 wt.-% of defoamer.   
     
     
         9 . The composition of  claim 1 , wherein the rinse aid for forming the composition comprises at least
 about ≧10 wt.-% to ≦60 wt.-% of the oxygen source;   about ≧0.5 wt.-% to ≦50 wt.-% of a hydrotope;   about ≧0.5 wt.-% to ≦50 wt.-% of a surfactant; and   about ≧0.5 wt.-% to ≦50 wt.-% of builders.   
     
     
         10 . A method for removing soil from a surface to be cleaned comprising applying to the surface to be cleaned a composition of  claims 1  to  9 . 
     
     
         11 . The method of  claim 10 , wherein the method is performed in a dish washer. 
     
     
         12 . The method of  claim 11  comprising the steps of:
 a) providing one or more soiled ware, particularly soiled dishes, in a dish washer; 
 b) performing a first washing step comprising bringing the one or more soiled ware in contact with the cleaning composition according to any of  claims 1  to  9 , wherein the cleaning composition contains both a detergent with a peroxidation catalyst and a rinse aid with an oxygen source; 
 c) performing a rinse step in which unused rinse aid solution with an oxygen source is brought in contact with the one or more soiled ware, wherein the ware is covered with the cleaning composition. 
 
     
     
         13 . The method of  claim 1 , wherein step c) is performed when the composition is in a cycle steady state. 
     
     
         14 . The method of  claim 11 , wherein step b) is performed in a time range of about ≧20 s to ≦240 s, and/or wherein step c) is performed in a time range of about ≧5 s to ≦120 s.