CARRIER BODY, ATTACHED SHEET MEMBER, AIR FILTER, CARRIER BODY PRODUCTION METHOD, AND ATTACHED SHEET MEMBER PRODUCTION METHOD

摘要

The purpose of the present invention is to provide: a carrier body that is able to release a functional substance over a prolonged period of time; an attached sheet member attached with said carrier body; and an air filter using said attached sheet member. This carrier body comprises a core body containing a functional substance and a coating layer that covers the surface of the core body, the carrier body being characterized in that: the coating layer comprises a vitrified inorganic binder and an inorganic aggregate dispersed within the inorganic binder; the surface of the coating layer is provided with microcracks that are formed therein so as to have openings connecting to the functional substance constituting the core body so that the functional substance is released to the outside through the microcracks.