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1. (WO2018221016) WATER-DISPERSIBLE SHEET

Pub. No.:    WO/2018/221016    International Application No.:    PCT/JP2018/014912
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue Apr 10 01:59:59 CEST 2018
IPC: D21H 27/00
D21H 17/26
D21H 19/34
Applicants: NIPPON PAPER PAPYLIA CO., LTD.
日本製紙パピリア株式会社
Inventors: KISHIMOTO Masaki
岸本 雅樹
ISHINO Yoshiaki
石野 良明
Title: WATER-DISPERSIBLE SHEET
Abstract:
The purpose of the present invention is to further improve the balance between the water dispersibility and the surface barrier properties of a water-dispersible sheet provided with, to at least one surface thereof, a filling layer made of methyl cellulose. The purpose is achieved by a water-dispersible sheet having a filling layer made of methyl cellulose on at least one surface of a water-dispersible base material, wherein the water-dispersible base material contains fibrous carboxymethyl cellulose and papermaking fibers having a Canadian standard freeness of 500-750 ml CSF, the fibrous carboxyalkyl cellulose is alkalized, and the viscosity of a 2% solution of the methyl cellulose at 20°C measured by a Brookfield viscometer is 20-30 cps.