To generate a large amount of emulsions uniform in particle size of a dispersed phase.
An emulsification process obtaining the emulsion by feeding two kinds of liquids providing the continuous phase and the dispersed phase of the emulsion to emulsify these on a micro channel comprises providing an emulsifier 10 having a double cylindrical structure including an inner cylinder and an outer cylinder adjacent to a venturi tube 50 having a restriction, obtaining a primary emulsion by dispersing to feed from a plurality of micro-nozzles mounted on an inner pipe so as to make a liquid providing the dispersed phase orthogonal to a liquid flowing through the cylinder gap of the double cylinder in the emulsifier 10 as the microchannel to provide the continuous phase, and obtaining a secondary emulsion provided as a finely dispersed phase by passing this primary emulsion through the restriction on the venturi tube 50.
COPYRIGHT: (C)2007,JPO&INPIT
Endo Yoshishige
Eiichi Tsuru
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