Water absorption treatment material and method for manufacturing the same
AssigneeDaiki Co., Ltd.
InventorsHiroshi ITO, Junji YOSHINAGA
Life of this patent
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Abstract
Provided is a water absorption treatment material and a method for manufacturing the same, according to which separation of a coating layer portion is not likely to occur. A water absorption treatment material includes a granular core portion and a coating layer portion. A recessed portion is formed on the surface of the granular core portion. The recessed portion is intentionally formed on the surface of the granular core portion. The coating layer portion is provided so as to cover the surface of the granular core portion. A portion of the coating layer portion enter the recessed portion.
Claims18
A water absorption treatment material comprising:
- a granular core portion having a recessed portion formed intentionally on its surface;
- and
- a coating layer portion that covers the surface of the granular core portion,
- wherein a portion of the coating layer portion enters the recessed portion.
A method for manufacturing a water absorption treatment material, comprising:
- a core portion forming step of forming a granular core portion having a recessed portion on its surface;
- and
- a coating forming step of forming a coating layer portion that covers the surface of the granular core portion,
- wherein in the core portion forming step, the recessed portion is formed intentionally, and
- in the coating forming step, the coating layer portion is formed such that a portion of the coating layer portion enters the recessed portion.
Dependencies are inferred from the claim text.