The present invention provides: a water-absorbing agent which has excellent urine
resistance; a water-absorbing agent which has not only excellent urine resistance,
but also excellent absorption properties that are stable to any composition of
urine and show little change with time; and production processes and uses for these
water-absorbing agents. The present invention water-absorbing agent exhibits a
specific or larger value of absorption capacity under a load in a process in which
the absorption capacity under a load is measured in a new manner using a specific
liquid to be absorbed, and the present invention provides an absorbent matter and
an absorbent article which display a specific or larger value of new absorption
index as is, for example, led from the absorption capacity under a load or from
the resin concentration using the above water-absorbing agent. The present invention
further provides a production process for a water-absorbing agent having the above
specific parameter.