Invention Grant
- Patent Title: Liquid-retaining sheet and facial mask
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Application No.: US14407720Application Date: 2013-06-11
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Publication No.: US09890487B2Publication Date: 2018-02-13
- Inventor: Toru Ochiai , Kazuhisa Nakayama , Sumito Kiyooka , Nobuo Araya , Naoaki Moritani
- Applicant: Kuraray Kuraflex Co., Ltd.
- Applicant Address: JP Okayama-shi
- Assignee: KURARAY KURAFLEX CO., LTD.
- Current Assignee: KURARAY KURAFLEX CO., LTD.
- Current Assignee Address: JP Okayama-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2012-132780 20120612
- International Application: PCT/JP2013/066069 WO 20130611
- International Announcement: WO2013/187404 WO 20131219
- Main IPC: A45D44/00
- IPC: A45D44/00 ; D04H1/49 ; B32B5/26 ; D04H1/28 ; D04H1/425 ; D06M11/46 ; D06M15/333 ; A61K8/02 ; A61Q19/00 ; B32B5/02 ; D04H1/4258 ; D04H1/46 ; B32B5/08 ; B32B7/12 ; D04H1/492

Abstract:
A liquid-retaining sheet contains a liquid-retaining layer that is able to absorb a liquid component, and the liquid-retaining layer is formed from a nonwoven structural member containing a transparent fiber. In the liquid-retaining sheet, the transparency shown below is adjusted to not more than 0.27. Transparency=Whiteness (%) of a sheet impregnated with 700% by mass of water relative to the sheet mass/Basis weight (g/m2) The transparent fiber may contain a cellulose-series fiber substantially free from a carboxyl group (in particular, a regenerated cellulose fiber such as a solvent-spinning cellulose-series fiber). The proportion of the solvent-spinning cellulose-series fiber may be not less than 30% by mass in the transparent fiber. The liquid-retaining sheet may be a skin care sheet (in particular, a facial mask) that is impregnated with a liquid component containing a cosmetic preparation. The liquid-retaining sheet has an improved transparency in a wet state in spite of a nonwoven structural member contained in the sheet and shows a suitable strength in a wet state.
Public/Granted literature
- US20150125499A1 LIQUID-RETAINING SHEET AND FACIAL MASK Public/Granted day:2015-05-07
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