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|1. (WO2018037816) METHOD FOR PRODUCING HYDROUS WATER ABSORBENT SHEET|
|Title:||METHOD FOR PRODUCING HYDROUS WATER ABSORBENT SHEET|
According to the present invention, a photocurable composition containing a hydrophilic monomer that produces a homopolymer having a glass transition temperature of 50°C or higher is prepared; a photocurable composition layer is formed on a base film pulled out from a feed roll by applying the photocurable composition to the base film; a water absorbent sheet is formed by photocuring the photocurable composition layer by irradiating the photocurable composition layer with ultraviolet light; the water absorbent sheet is caused to contain water by subjecting the water absorbent sheet to a water addition treatment; and the thus-obtained hydrous water absorbent sheet is wound around a take-up roll together with the base film. Consequently, a hydrous water absorbent sheet having good water absorption and excellent transparency is able to be produced by a roll-to-roll process.