Water absorbent resin particles, absorbent, absorbent article and liquid suction power measurement method

Water-absorbent resin particles,

• wherein a value of non-pressurization DW after 3 minutes is 14 ml/g or more and 40 ml/g or less, and a value of liquid suction power after 3 minutes measured by the following method is 11 ml/g or more and 25 ml/g or less,
• wherein the water-absorbent resin particles comprise a crosslinked polymer having a structural unit derived from (meth)acrylic acid and a salt thereof,
• wherein a content of silica particles in the water-absorbent resin particles is 0.05 mass % or more based on the total amount of the water-absorbent resin particles, and
• wherein a water retention capacity for a physiological saline solution is 37 g/g or more,
• a liquid suction power measurement method:
• 0.3 g of the water-absorbent resin particles is uniformly dispersed in a cylindrical container having a mesh-like bottom and having an inner diameter of 26 mm;
• the cylindrical container is placed in a container containing 40 g of a physiological saline solution, the water-absorbent resin particles are caused to absorb the physiological saline solution for 30 minutes from the bottom of the cylindrical container, and thereby a swollen gel is obtained;
• and non-pressurization DW, which is measured in a state where another 0.3 g of the water-absorbent resin particles is uniformly dispersed on the swollen gel in the cylindrical container, is defined as liquid suction power.