| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a porous recording sheet having superior image vividness, a quick-drying property, and water resistivity. SOLUTION: The porous recording sheet is composed of a porous film including 51-95 pts.wt. colloidal silica and a 5-49 pts.wt. binder in at least one layer on the carrier, and the binder is 3-80 pts.wt. nitric ester or the like of carboxy alkylcellulose in which the substitutional degree of a nitric ester group is 0.2-2.95 per piece of an anhydride glucose unit and the substitutional degree of carboxy alkylcellulose is 0.05-2.8, and 20-97 pts.wt. water polymer. |
