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公开(公告)号：US11161126B2
公开(公告)日：2021-11-02
申请号：US16606380
申请日：2018-04-19
Applicant: Kao Corporation
Inventor： Takehiko Tojo , Ikuo Fukuda
Abstract: 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.
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公开(公告)号：US11679578B2
公开(公告)日：2023-06-20
申请号：US17296881
申请日：2019-11-25
Applicant: Kao Corporation
Inventor： Suguru Ikeyama , Hideo Kobayashi , Takehiko Tojo , Koji Saito , Yuting Yang , Shunetsu Yonaiyama , Ikuo Fukuda
IPC: B32B3/26 , B32B5/02 , D01D5/04 , D04H1/4374 , D04H1/728
CPC classification number: B32B3/263 , B32B5/02 , D01D5/04 , D04H1/4374 , D04H1/728 , B32B2262/02 , B32B2307/732
Abstract: A nanofiber sheet includes: a substrate layer; and a nanofiber layer located on one surface side of the substrate layer and containing nanofibers of a polymer compound. A peripheral edge of the nanofiber layer has a thickness of from 0.1 to 10 μm. The nanofiber layer includes a gradation region having a thickness that gradually increases inward from the peripheral edge. The distance W1 between the peripheral edge of the nanofiber layer and a maximum thickness portion where the thickness becomes the greatest in the gradation region is at least 3 mm. A nanofiber sheet manufacturing method involves depositing nanofibers onto a collecting unit by moving at least either a nozzle or the collecting unit, to thereby manufacture a predetermined nanofiber sheet including a gradation region.
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公开(公告)号：US11351402B2
公开(公告)日：2022-06-07
申请号：US16606373
申请日：2018-04-19
Applicant: Kao Corporation
Inventor： Takehiko Tojo , Ikuo Fukuda
IPC: B05D1/04 , B05D1/06 , A61Q1/02 , A61Q19/00 , B05D1/00 , A61K8/34 , A61Q1/12 , A61Q15/00 , A61Q17/04
Abstract: A method for producing a film of the present invention includes the step of electrostatically spraying a liquid composition directly on the surface of skin using an electrostatic spray device to form a film on the skin. The electrostatic spray device includes a container capable of storing the liquid composition, a nozzle configured to eject the liquid composition, a power supply configured to apply a voltage to the nozzle, and a voltage stabilizer configured to stabilize the voltage applied by the power supply to the nozzle. The liquid composition contains component (a): one or more volatile substances selected from alcohols and ketones, and component (b): a polymer having film formability.
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公开(公告)号：US10952517B2
公开(公告)日：2021-03-23
申请号：US15775997
申请日：2016-11-04
Applicant: KAO CORPORATION
Inventor： Ikuo Fukuda , Shinji Kodama
IPC: A45D34/04 , A61K8/04 , A61M35/00 , A61Q1/02 , A61Q1/04 , A61Q1/12 , A61Q17/04 , A61Q19/00 , B05B12/00 , B05B12/12 , B05B5/053 , B05B12/08 , B05B5/16 , B05B5/00 , B05B5/025 , A45D44/08 , B05B15/68
Abstract: A film forming device 10 including a distance measurement unit 30 for measuring the distance between the skin S and the device 10, a distance decision unit 31 for deciding whether the distance measured by the distance measurement unit 30 is proper for electrostatic spraying, and a distance notification unit 32 for notifying a user of the decision by the distance decision unit 31. The film forming device 10 is of hand-held type small enough and configured to be held by the user's hand. The device 10 preferably includes an angle measurement unit 42 for measuring the angle between the electrostatic spray direction and the skin S.
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