▎ 摘　　要

NOVELTY - Liquid absorbing/releasing base material comprises a ceramic raw material having a volume average particle diameter of 0.03-3 mu m, and a uniform mixture of a nanocarbon material having a content of 0.2-10 %mass which is sintered after press molding. USE - The liquid absorbing/releasing base material is useful for absorbing a liquid containing a volatile active ingredient and releasing volatile active ingredient. ADVANTAGE - The liquid absorbing/releasing base material has excellent hardness, tensile strength, toughness, bending strength, deformation resistance, fracture strength, scuffing strength, pencil hardness, Vickers hardness and Mohs hardness. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an active ingredient release plate or coarse granules; (2) a method for producing the liquid-absorbing/releasing base material; and (3) a method for producing an active ingredient-releasing plate or coarse granules.