Method for producing wax in water dispersions from self-emulsifying gel concentrates

A method for producing oil-in-water dispersions from self-emulsifying gel concentrates, comprising the following steps:

• (a) providing an emulsifier concentrate (A) containing at least:
• (A.1) 0 to 80% by weight of one more polyols (P);
• (A.2) 0.01 to 99% by weight of water (W);
• and
• (A.3) 1 to 80% by weight of an ionic surfactant (I) and/or a non-ionic surfactant (N);
• with respect to the emulsifier concentrate (A);
• (b) bringing an oil phase (O) into contact with the emulsifier concentrate (A) in an essentially exclusively laminar flow field in order to obtain a self-emulsifying O/W gel concentrate (G) with an oil content of more than 5% by weight;
• and
• (c) bringing the O/W gel concentrate (G) into contact with water;
• wherein the oil phase is a wax phase which is solid at 25° C. and which has a softening point of more than 25° C. and wherein on bringing the united components from step (a) and (b) or from step (a), (b) and (c) into contact, the temperature thereof is over the softening point of the wax phase and after cooling, the oil-in-water dispersion has suspended solid wax as the disperse phase.