Title:
EAR PART MATERIAL FOR MASK, MASK, METHOD FOR PRODUCING EAR PART MATERIAL FOR MASK, AND METHOD FOR PRODUCING MASK
Document Type and Number:
WIPO Patent Application WO/2021/256187
Kind Code:
A1
Abstract:
The ear part material for a mask of the present invention comprises a first face, a stretchable member having a second face opposed to the first face, a first surface material joined to the first face, and a second surface material joined to the second face. Before starting to use, the stretchable member has a natural length, and the first surface material and second surface material are contracted in a predetermined direction.
Inventors:
HONJO RYOTA (JP)
ONIZAWA RINA (JP)
HAYASHI AKIFUMI (JP)
ONIZAWA RINA (JP)
HAYASHI AKIFUMI (JP)
Application Number:
PCT/JP2021/019752
Publication Date:
December 23, 2021
Filing Date:
May 25, 2021
Export Citation:
Assignee:
DAIO SEISHI KK (JP)
International Classes:
A62B18/02; A41D13/11
Foreign References:
| JP2007021029A | 2007-02-01 | |||
| JP2019131928A | 2019-08-08 | |||
| JP2006034408A | 2006-02-09 | |||
| JP2019183343A | 2019-10-24 | |||
| JP5762803B2 | 2015-08-12 | |||
| JP2020106226A | 2020-07-09 |
Other References:
See also references of EP 4169583A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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