Process for preparing organopolysiloxane emulsion

A process for preparing an organopolysiloxane emulsion, comprising emulsifying a mixture containing (i) a liquid organopolysiloxane, (ii) at least one emulsifying agent selected from the group consisting of nonionic surface active agents, anionic surface active agents, cationic surface active agents and amphoteric surface active agents, and (iii) water;

• wherein emulsification is effected by means of a composite emulsifying apparatus equipped with
• (A) a stirring means having a stirring blade capable of stirring said mixture, in a container, at a low speed of 100 rpm or less, over the whole of the container, whereby the contents are uniformly mixed and dispersed and local stagnation is prevented,
• and at least one additional stirring means selected from the group consisting of
• (B) a disc type stirring means capable of rotating at a high speed of 1,000 to 2,000 rpm, and having tooth-like projections on its peripheral edge, whereby the mixture is sheared and finely crushed, and
• (C) a stirring means having a stator and a turbine blade disposed in the inside of the stator and capable of rotating at a high speed of 10,000 to 20,000 rpm, whereby the mixture is strongly sheared and finely dispersed,
• wherein the dispersed particles in the resultant emulsion have an average particle size of 0.5 micron or less.