abstract |
PROBLEM TO BE SOLVED: To provide a water absorbing sheet having a high water absorption speed and a high liquid holding power (excellent rewet prevention performance). SOLUTION: A water absorbent sheet comprising a water absorbent resin foam layer and a super water absorbent resin (SAP) layer, wherein the water absorbent resin foam layer includes a water dispersible resin as a dispersoid, and a foam. Mixing and stirring a gas in an aqueous liquid medium containing an anionic surfactant as an agent, water or a mixture of water and a water-soluble solvent as a dispersion medium, and a water-soluble polymer dissolved in the dispersion medium. A water absorbent sheet obtained by foaming the aqueous liquid medium to obtain a foamed aqueous liquid medium, and heating the foamed aqueous liquid medium to evaporate the dispersion medium. [Selection] Figure 1 |