PROBLEM TO BE SOLVED: To provide an absorbing resin particle of which absorption amount under pressure is equal to or greater than the absorption amount without pressure, and to provide an absorbent article having a high surface dry feeling of the absorbent article under pressure.SOLUTION: The absorbing resin particle contains a crosslinked polymer (A) composed of a water-soluble vinyl monomer (a1) and/or hydrolytic vinyl monomer (a2) and an internal crosslinking agent (b1) as necessary constituent units. The amount of 150G water retention is 6-20 g/g and the absorption amount under the pressure of 40 g/cm2 is at least the water retention amount of 150G. Also, the pass rate of the liquid gel is at least 200 ml/min.COPYRIGHT: (C)2012,JPO&INPIT【課題】吸水性樹脂粒子の吸収量が加圧下でも無加圧下と同等以上の吸収量がある吸収性樹脂粒子を提供すること。加圧下の吸収性物品の表面ドライ感が高い吸収性物品を提供すること。【解決手段】水溶性ビニルモノマー(a1)及び/又は加水分解性ビニルモノマー(a2)並びに内部架橋剤(b1)を必須構成単位とする架橋重合体(A)を含んでなる吸収性樹脂粒子であって、150G保水量が6~20g/gであり、40g/cm2加圧下吸収量が150G保水量以上であり、ゲル通液速度が200ml/min以上である吸収性樹脂粒子。【選択図】図1
