| 摘要 |
Provided is a method for producing water-disintegrable paper which solves the problem that when a base paper sheet impregnated with a water-soluble binder is embossed, the base paper sheet adheres to an embossing device, and which can be produced easily at low cost and has no possibility that paper powder remains on the dried surface of a cleaned portion after use. Water-disintegrable paper is produced by embossing a base paper sheet (2) that is not impregnated with a water-soluble binder and is in a non-wetting state to form a bulky portion (17) configured from a large number of asperities (12) on the base paper sheet (2), spraying, from the outer surface side of the base paper sheet (2), a water-soluble binder solution (5) on the base paper sheet (2) on which the bulky portion (17) has been formed to impregnate the base paper sheet (2) with the water-soluble binder solution (5), drying the base paper sheet (2) impregnated with the water-soluble binder solution (5), folding the base paper sheet (2) which has been dried, and spraying an aqueous pharmaceutical solution on the folded base paper sheet (2) to impregnate the base paper sheet (2) with the aqueous pharmaceutical solution. |
