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：US20230041172A1

公开(公告)日：2023-02-09

申请号：US17790844

申请日：2020-12-24

Applicant: Kao Corporation

Inventor： Suguru IKEYAMA ,  Naomi AMARI ,  Shunetsu YONAIYAMA ,  Hiroya SUZUKI ,  Takehiko TOJO ,  Hideo KOBAYASHI

IPC: A45D44/00 ,  A61K8/02

Abstract: A sheet providing method provides a sheet that is used by being applied to a body surface of an individual user. The method involves determining a shape and dimensions of a sheet for each individual user U based on body surface information of the individual user; and forming the sheet by controlling a discharge nozzle that discharges a raw material of the sheet based on information regarding the shape and the dimensions of the sheet. Also, a sheet providing system having a sheet specification determining unit that determines a shape and dimensions of a sheet for each individual user based on body surface information of the individual user; and a sheet forming unit that forms the sheet by controlling a discharge nozzle that discharges a raw material of the sheet based on information regarding the shape and the dimensions of the sheet.

公开(公告)号：US20230033405A1

公开(公告)日：2023-02-02

申请号：US17788256

申请日：2020-12-22

Applicant: Kao Corporation

Inventor： Suguru IKEYAMA ,  Naomi AMARI ,  Hiroya SUZUKI ,  Takehiko TOJO ,  Teruyuki FUKUDA

IPC: A61K8/02 ,  A61Q19/02 ,  A61Q19/08 ,  A61K8/81 ,  B41J2/01 ,  B41M5/50

Abstract: A nanofiber sheet has a nanofiber layer composed of an accumulation of nanofibers. The nanofiber sheet has a plurality of membrane-like regions which extend between the nanofibers. The membrane-like regions of the nanofiber sheet each contain a water insoluble polymer and a pigment. The water insoluble polymer contained in the membrane-like regions of the nanofiber sheet is different from a constituent member of the nanofibers. The nanofiber sheet is preferred because it has a plurality of membrane-like aggregate regions, each an aggregate of a plurality of membrane-like regions which are adjacent to each other via a fiber and it has a non-membrane-like region between the membrane-like aggregate regions adjacent to each other.