PROBLEM TO BE SOLVED: To provide a wet water-disintegrable paper holding sufficient strength in use as a personal wet wiper such as a baby's hip wiper, wiper for ladies and wiper for the periphery of the anus and improved to be quickly disintegrated by a great amount of water when casted into the water and further safe for the skin. SOLUTION: A wet water-disintegrable paper is one having polyvinyl alcohol as a binder and impregnated with a solution including a solubilizing assistant of a sulfate and polyvinyl alcohol. Or the water-disintegrable paper including polyvinyl alcohol as the binder and the solubilizing assistant of a sulfate and polyvinyl alcohol is impregnated with the solution.
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