Patent ID: 6544348
Filing Date: 2003-04-08
Classification: B41N,C11D

Abstract:
A process for cleaning printing machines and printing plates comprising removing contaminants from surfaces to be cleaned by washing them with a liquid, wherein said liquid is a bicontinuous microemulsion comprisinga) from 2 to 60% by weight of an alkylester of a saturated or unsaturated fatty acid having 8 to 25 carbon atoms, wherein the alkyl group of said ester contains 1 to 20 carbon atoms, as a water-immiscible organic solvent, b) from 30 to 60% by weight of water, c) from 7 to 25% by weight of one or more surfactants, wherein the volume ratio of water to organic phase is from 40:60 to 60:40 and the interfacial tension between water and organic phase is in the range from 10âˆ’4 to 10âˆ’6 N/m.