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PROCÉDÉ DE PRODUCTION DE FILM
专利权人:
Kao Corporation
发明人:
申请号:
EP18787353.4
公开号:
EP3613404A1
申请日:
2018.04.19
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
A method for producing a film of the present invention includes an electrostatic spraying step of electrostatically spraying a liquid composition directly on the surface of skin to form a film on the skin by using an electrostatic spray device. The electrostatic spray device includes a container capable of storing the liquid composition, a nozzle configured to eject the liquid composition, and a power supply configured to apply a voltage to the nozzle. The liquid composition contains component (a): one or two or more volatile substances selected from alcohols and ketones, component (b): a water-insoluble polymer having film formability, and component (c): 0.2% by mass or more and 25% by mass or less of water. In the electrostatic spraying step, the power supply applies a voltage of 5 kV or more and 50 kV or less to the nozzle that ejects the liquid composition at a flow rate of 0.4 mL/h or more and 30 mL/h or less to perform electrostatic spraying on the surface of the skin, and the ratio of the flow rate (F) (mL/h) to the voltage (P) (kV) (flow rate (F)/voltage (P)) is 0.8 or less.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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