| abstract |
Provided are: a water-absorbing resin that can reduce the amount of backflow of the liquid being absorbed, even when the water-absorbing resin is used at a low content in an absorbent body; and an absorbent article that uses an absorbent body that contains the absorbent resin. The water-absorbing resin is a crosslinked polymer from water-soluble ethylenically unsaturated monomer and has a dry-up index, as given by formula (1), of at least 1.85. The overall absorption capacity term α and the water absorption rate term β in formula (1) are given by formulas (2) and (3). |