Device for preparing cosmetic composition containing emulsion material instantly emulsified based on microfluidic channel

An apparatus for preparing a cosmetic composition containing an emulsion substance, the apparatus comprising:

• a housing defining the appearance of the apparatus;
• a pump being operated by a user;
• an external-phase chamber provided in the housing, and storing an external-phase fluid forming the external phase of the emulsion substance;
• a dispersed-phase chamber provided in the housing, and storing a dispersed-phase fluid forming the dispersed phase of the emulsion substance;
• a microfluidic channel providing a path for the external-phase fluid and the dispersed-phase fluid to flow for forming the emulsion substance by combining the external-phase fluid with the dispersed-phase fluid;
• and
• an outlet for discharging the emulsion substance from the microfluidic channel,
• the external-phase fluid stored in the external-phase chamber and the dispersed-phase fluid stored in the dispersed-phase chamber provided to the microfluidic channel, and then flow into the outlet after instant emulsification in the microfluidic channel by the pressure formed by operating of the pump by the user,
• wherein the microfluidic channel comprises:
• an external-phase fluid delivery pipe for the external-phase fluid entering from the external-phase chamber to flow;
• a dispersed-phase fluid delivery pipe for the dispersed-phase fluid entering from the dispersed-phase chamber to flow;
• an intersection at which the external-phase fluid flowing through the external-phase fluid delivery pipe and the dispersed-phase fluid flowing through the dispersed-phase fluid delivery pipe meet each other as a point where the external-phase fluid delivery pipe communicates with the dispersed-phase fluid delivery pipe;
• and
• an emulsification part communicating with the intersection, which is narrower than the intersection in width, and emulsifying the external-phase fluid and the dispersed-phase fluid to form the emulsion substance, and
• wherein the emulsion substance is formed by forming emulsion particles by the external-phase fluid break entering dispersed-phase fluid flow in the emulsification part.