Title:
WATER-DISPERSIBLE SHEET
Document Type and Number:
WIPO Patent Application WO/2019/130968
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a water-dispersible sheet that has further improved water dispersibility. This water-dispersible sheet: comprises papermaking fibers and alkalinized fibrous carboxyalkyl cellulose; and also includes a carboxyalkyl cellulose salt. The degree of etherification of the fibrous carboxyalkyl cellulose is 0.2–0.6, and the degree of etherification of the carboxyalkyl cellulose salt is 0.5–1.6. The viscosity, as measured by Brookfield viscometer, of a 1 wt% aqueous solution of the carboxyalkyl cellulose salt is 2–200 mPa∙s. Relative to the total of the papermaking fibers and the alkalinized fibrous carboxyalkyl cellulose, the carboxyalkyl cellulose salt fraction is 0.1–10 wt%.
Inventors:
KISHIMOTO MASAKI (JP)
ISHINO YOSHIAKI (JP)
MATSUMORI YASUAKI (JP)
ISHINO YOSHIAKI (JP)
MATSUMORI YASUAKI (JP)
Application Number:
PCT/JP2018/043941
Publication Date:
July 04, 2019
Filing Date:
November 29, 2018
Export Citation:
Assignee:
NIPPON PAPER PAPYLIA CO LTD (JP)
JUJO PAPER CO LTD (JP)
JUJO PAPER CO LTD (JP)
International Classes:
D21H17/26; B41M5/40; B41M5/41; D21H13/04; D21H19/52
Foreign References:
| JPH0949188A | 1997-02-18 | |||
| JPH11269201A | 1999-10-05 | |||
| JP2004314623A | 2004-11-11 | |||
| JPH10323818A | 1998-12-08 | |||
| JPH11152696A | 1999-06-08 | |||
| JP2000170100A | 2000-06-20 |
Attorney, Agent or Firm:
SHIMODA Akira et al. (JP)
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