公开(公告)号：US20220024172A1

公开(公告)日：2022-01-27

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

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.

公开(公告)号：US20210178412A1

公开(公告)日：2021-06-17

申请号：US17268797

申请日：2019-10-03

Applicant: Kao Corporation

Inventor： Takuya ISHIDA ,  Ikuo FUKUDA ,  Takahiro HIRANO ,  Takehiko TOJO

IPC: B05B5/025 ,  B05D1/04 ,  D01D5/00 ,  D04H1/728

Abstract: The present invention provides an apparatus with which it is possible to easily form a coating made of deposits of fibers. Specifically, the present invention provides an apparatus (1) for producing a coating that includes an electrostatic spraying section (P1) that includes a housing (10). The housing (10) is internally provided with a nozzle (16), an electrode (20), an air-flow generating section (21), a hollow section (22), and an air jetting opening (24). The hollow section (22) is located between the nozzle (16) and the air-flow generating section (21) and is adjacent to the air-flow generating section (21). The hollow section (22) is adjacent to the air jetting opening (24). The housing (10) is configured to be capable of being held by a human hand. When the electrostatic spraying section (P1) is viewed in a liquid composition discharge direction, a tip of the nozzle (16) is located at a frontmost end portion of the electrostatic spraying section (P1).

公开(公告)号：US20200038891A1

公开(公告)日：2020-02-06

申请号：US16606380

申请日：2018-04-19

Applicant: Kao Corporation

Inventor： Takehiko TOJO ,  Ikuo FUKUDA

IPC: B05B5/16 ,  A45D34/04 ,  B05D1/06 ,  A61K8/04 ,  A61Q1/00

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.

公开(公告)号：US20210196613A1

公开(公告)日：2021-07-01

申请号：US16606253

申请日：2018-04-19

Applicant: KAO CORPORATION

Inventor： Kenta MUKAI ,  Takehiko TOHJO ,  Ikuo FUKUDA

IPC: A61K8/81 ,  C09D129/04 ,  A61K8/02 ,  A61Q3/02 ,  A61K8/34 ,  A45D29/00 ,  A45D34/04 ,  B05B5/025 ,  B05B5/16

Abstract: Provided is a method for forming a coating comprising fibers having an excellent adhesivity to the skin, comprising directly electrostatically spraying on the skin.
A method for producing a coating comprising fibers on the surface of skin or nail, comprising directly electrostatically spraying onto human skin or nail, composition A comprising the following components (a), (b) and (c):
(a) one or more volatile substances selected from the group consisting of an alcohol and a ketone, (b) a water-insoluble polymer for fiber formation, (c) 0.2 mass % or more and 25 mass % or less of water; wherein the mass ratio of component (b) to component (c), ((b)/(c)) is of 0.4 or more and 50 or less.

公开(公告)号：US20180317627A1

公开(公告)日：2018-11-08

申请号：US15775997

申请日：2016-11-04

Applicant: KAO CORPORATION

Inventor： Ikuo FUKUDA ,  Shinji KODAMA

IPC: A45D34/04 ,  B05B5/025

CPC classification number: A45D34/04 ,  B05B5/025

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.