Patent ID: 11911746
Assignee: DAIKI CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  A | IPC B

Claim 0:
1. A method for manufacturing a water absorption treatment material made of a plurality of grains, comprising:
a preparing step of preparing a paper powder to which water-absorbent polymers adhere, the paper powder being derived from a sanitary product;
a separating step of separating part of water-absorbent polymers from the paper powder adhered with water-absorbent polymers to provide a paper powder adhered with remaining water-absorbent polymers and a particle of separated water-absorbent polymers;
a first pulverizing step of pulverizing remaining polymers that are the water-absorbent polymers remaining on the paper powder, using a first pulverizer;
a core portion forming step of forming a granular core portion constituting each of the grains; and
a coating portion forming step of forming a coating portion so as to cover the core portion, the coating portion containing the paper powder and the remaining polymers pulverized in the first pulverizing step,
wherein, in the first pulverizing step, the remaining polymers left in a state of adhering to the paper powder are subjected to the first pulverizer.