Particulate water absorbent, absorbent body containing water absorbent, and absorbent article using absorbent body

Abstract

Provided is a particulate water absorbent with which an absorbent body having an excellent speed of incorporating liquid and enabling reduction in release amount can be produced. The particulate water absorbent contains poly(meth)acrylic acid (salt)-based water-absorbing resin particles as a main component, and the particulate water absorbent includes a cavity that is a space connecting to outside and a void that is a closed space not connecting to outside, in which a cavity ratio to a total volume is 10% by volume or more, and a void ratio to a total volume is 0.5% by volume or less.

Dependencies are inferred from the claim text.