Title:
WIPING SHEET AND METHOD FOR PRODUCING WIPING SHEET
Document Type and Number:
WIPO Patent Application WO/2021/039564
Kind Code:
A1
Abstract:
According to the present invention, in the production process of a wiping sheet P, a solution that contains cellulose nanofibers at a concentration of from 0.5% to 2.0% is uniformly applied by spraying to the entire circumference of the edge of one surface of a spunlace nonwoven fabric, another nonwoven fabric is subsequently superposed on the coated surface, and the resulting material is heated and sufficiently dried by means of heat. Consequently, the cellulose nanofiber solution becomes to have adhesiveness, thereby enabling the formation of a wiping sheet P which exhibits excellent hydrophilicity, moisture absorbency and sustained release properties, while being easily produced and having a soft bonding surface.
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Inventors:
YAMASHITA SHOKO (JP)
Application Number:
PCT/JP2020/031395
Publication Date:
March 04, 2021
Filing Date:
August 20, 2020
Export Citation:
Assignee:
DAIO SEISHI KK (JP)
International Classes:
A47L13/17; A47K7/00; B32B5/26; D06M17/00
Foreign References:
| JP2016151070A | 2016-08-22 | |||
| JP2012197544A | 2012-10-18 | |||
| JP2002000496A | 2002-01-08 | |||
| JP2018123448A | 2018-08-09 | |||
| JP2019060044A | 2019-04-18 | |||
| JP2018104846A | 2018-07-05 |
Other References:
See also references of EP 4005459A4
Attorney, Agent or Firm:
ARAFUNE, Hiroshi et al. (JP)
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