| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrolyzable fiber sheet which is excellent in hydrolyzation property and strength even when in a wet state in which it contains some amount of water, and which is dispersed readily when contacted with a large amount of water. SOLUTION: A fiber sheet, which uses alkyl cellulose as a binder for joining its fibers, is made to contain a polymeric compound containing an electrolyte and being an acid anhydride and a copolymer obtained from the compound and a compound which can copolymerize with it, and/or an amino acid derivative, so that the fiber sheet excellent in hydrolyzation property and strength can be obtained. Further, the fiber sheet is not decreased in hydrolyzation property and strength even after being preserved at high temperatures. |
