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Title:
WATER-ABSORBABLE SHEET
Document Type and Number:
Japanese Patent JP2021080621
Kind Code:
A
Abstract:
To provide a water-absorbable sheet compatible of sufficient water-absorption performance and thinness by solving such problems that the slimming of a water- absorbable composite has limitations because of a covering since a highly water-absorbable polymer is generally covered with a nonwoven fabric sheet material and the like in order to fix the highly water-absorbable polymer to a nonwoven fabric substrate and the like and, in addition, to prevent the highly water-absorbable polymer from oozing outside of a water-absorbable composite in a prior water-absorbable composite, meanwhile the sufficient water-absorbing performance cannot be obtained since an amount of a fixable highly water-absorbable polymer decreases though slimming can be realized if a nonwoven fabric substrate and the like are made thin.SOLUTION: A water-absorbable sheet is a sheet-like matter including 30-100 wt.% of a polyacrylonitrile-based water-absorbable fiber having a density of 0.25-1.4 g/cm3, and a carboxyl group, where the polyacrylonitrile-based water-absorbable fiber is evenly pressed and joined while holding a fiber state.SELECTED DRAWING: Figure 1

Inventors:
KOMIYAMA TAKUZO
YAMASHITA OSAMU
KATAOKA KENTA
Application Number:
JP2020185529A
Publication Date:
May 27, 2021
Filing Date:
November 06, 2020
Export Citation:
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Assignee:
JAPAN EXLAN CO LTD
International Classes:
D04H1/43; D06C15/02