WATER ABSORBING RESIN PARTICLES, ABSORBENT ARTICLE, METHOD FOR MANUFACTURING WATER ABSORBING RESIN PARTICLES, METHOD FOR FACILITATING PERMEATION OF PHYSIOLOGICAL SALINE SOLUTION INTO ABSORBENT BODY

摘要

Disclosed are water absorbing resin particles having a gel leakage rate of 0 to 20%. The gel leakage rate is determined by a method including: preparing 20g of swollen gel formed from water absorbing resin particles that has absorbed physiological saline, compressing the swollen gel with a weight having a mass of 2,000 g for 30 seconds, and measuring the mass W (g) of the swollen gel which leaked from through-holes in a disk during the compression; and calculating the gel leakage rate (%) using the formula: gel leakage rate (%) = (W/20) × 100.