ABSTRACT
Introduction 603
Application for Decreasing the Amount of Emulsifier 604
Application Correspondence in Order to Decrease Preservatives 607
Application to Solubility and Dispersion 608
Application for Improvement in Usability and Feeling 610
Scale-up 610
Conclusion 611
References 612
INTRODUCTION
Many cosmetics are manufactured according to the process classified in chemical
engineering as emulsification or distribution. Various emulsification and
distribution technologies have been developed in recent years. Regarding for-
mulation emulsification technology, the phase inversion emulsifying method, the
gel emulsifying method, and the D phase emulsifying method are used. As a
form of mechanical emulsification technology, there is also the emulsifying
method in which mechanical power (mainly shear, impact, and cavitation is
applied).
