Shiseido Company, Limited

Takuma Kurahashi

Katsuyuki Kaneko

Katsuki Ogawa

Shuji Hasegawa

Masaki Bundo

Koutaro Oota

Keisuke Touyama

Yoshito Ogura

A production method for making powder cosmetics having improved characteristics. The method includes mixing a powder component and an oil component as a binder using a mixing apparatus. The mixing apparatus is a facing rotor type mixing apparatus having a first rotor with a plurality of blades and a second rotor with a plurality of blades in a mixing chamber. The first rotor and the second rotor face each other and have rotating shafts on the same axis line. In the facing rotor type mixing apparatus, raw materials are fed into an introduction opening on a first rotor side. The raw materials are mixed by rotating the first rotor and the second rotor in the same or opposite directions to each other, and the mixed raw materials are discharged from a discharge opening on a second rotor side.

Production method of a powder cosmetic

The present invention is a cosmetic for eyelashes characteristically comprising modified cross-section hollow fibers. What is preferable is a cosmetic for eyelashes characteristically containing said modified cross-section hollow fibers that are polygonal cross-section hollow fibers having depressions so they can orient along the eyelashes wherein the length of the hollow fibers is 0.5-4 mm and the size is 20-50 &#x3bc;m. The object of the present invention is to provide a cosmetic for eyelashes that exhibits a superior curling effect and long lash effect and allows a beautiful finish.

Cosmetic for eyelashes

Growing community of inventors

Yokohama, Japan

Takuma Kurahashi