PROBLEM TO BE SOLVED: To provide water-absorbent resin particles capable of suppressing liquid leakage. SOLUTION: The water absorption is such that a 30-second value of unpressurized DW is 1.0 mL/g or more, and a contact angle measured by a test performed in the order of i) and ii) is 90 degrees or less. Resin particles. i) At 25° C., spherical droplets having a diameter of 3.0±0.1 mm of 25% by mass saline solution are dropped on the surface of the layer formed of the water-absorbent resin particles to form the water-absorbent resin particles and the droplets. Contact with. ii) Measure the contact angle of the drop 30 seconds after the drop contacts the surface. [Selection diagram] None【課題】液体漏れを抑制可能な吸水性樹脂粒子を提供すること。【解決手段】無加圧ＤＷの３０秒値が、１．０ｍＬ／ｇ以上であり、以下のｉ）及びｉｉ）の順で行われる試験で測定される接触角が９０度以下である、吸水性樹脂粒子。ｉ）２５℃において、吸水性樹脂粒子からなる層の表面上に、２５質量％食塩水の直径３．０±０．１ｍｍに相当する球状液滴を滴下して、吸水性樹脂粒子と液滴とを接触させる。ｉｉ）液滴が表面に接触してから、３０秒後の時点の液滴の接触角を測定する。【選択図】なし
