PROBLEM TO BE SOLVED: To solve such a problem that, in conventional absorptive resin particles, absorption performance of the absorptive resin particles, which has been increased by virtue of modification of proximity to surfaces, is impaired as a result of destruction in the proximity to surfaces in a production process of an absorptive article because the conventional technology for controlling a water content does not sufficiently prevent the destruction in the proximity to surfaces of the absorbing resin particles.SOLUTION: The absorptive resin particle includes a crosslinked polymer (A) including a water-soluble vinyl monomer (a1) and/or a hydrolyzable vinyl monomer (a2) and a crosslinking agent (b) as indispensable constituent units and a destruction inhibitor (c), wherein the water content is 3-20%.COPYRIGHT: (C)2012,JPO&INPIT【課題】従来の含水率を調整する技術では、吸収性樹脂粒子の表面近傍の壊れを防止するには不十分であり、従来の吸収性樹脂粒子では、吸収性物品の製造過程において表面近傍が壊れたりする結果、表面近傍の改質によって向上させていた吸収性樹脂粒子の吸収性能が損なわれる。【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)並びに架橋剤(b)を必須構成単位としてなる架橋重合体(A)と、壊れ防止剤(c)とを含んでなる吸収性樹脂粒子であって、水分率が3~20%である吸収性樹脂粒子。【選択図】図1
