Use of resins and fatty substances

Disclosed is the use of mixtures consisting of (a) resins and/or resin esters and (b) fatty substances selected from the group which is formed by fatty acids, fatty acid methyl esters, fatty alcohols, fatty alcohol polyglycolethers and paraffins and (c) optionally fatty alcohol polyglycolether sulphates. Said mixtures are used as hydrophobing means for paper.