Mixture of surfactants

Abstract

The presently claimed invention relates to a mixture (I) comprising at least four surfactants (I1) to (I4), wherein the mixture (I) comprises 5 to 15 wt. % of at least one first non-ionic surfactant (I1) having an HLB value in the range of 1 to 9, 45 to 65 wt. % of at least one second non-ionic surfactant (I2) having an HLB value in the range of higher than 9 to 14, 10 to 30 wt. % of at least one third non-ionic surfactant (I3) having an HLB value in the range of higher than 14 to 20, and 10 to 30 wt. % of at least one anionic surfactant (I4) having an HLB value of higher 10 than 17, wherein the % by weight values in each case are based on the total weight of the surfactants (I1), (I2), (I3) and (I4).

Dependencies are inferred from the claim text.