<；P>；PROBLEM TO BE SOLVED: To provide an antibacterial and mildewproof material having excellent sustainability of physiologically active functions, sustained release of a physiologically active material, water retainability, and friendliness to the environmental, to provide a production method of the material, and to provide a processed product containing the material. <；P>；SOLUTION: The production method of the antibacterial and mildewproof material supporting between the layers in the material a metal-tropolone complex having physiologically active functions comprises providing an inorganic layered compound as a main material and inserting one or more selected metal ions and a tropolone compound having physiologically active functions between the layers of the inorganic layered compound by the cation-exchange reaction, as an interlayer ion and in the form of a metal-tropolone complex. And the resultant new antibacterial and mildewproof material and processed products using the antibacterial and mildewproof material are also disclosed. Further, the antibacterial and mildewproof material controlling a sustained release rate of active function-having organic compounds, metal ions and the organic metal complex and supporting between the layers a metal-tropolone complex having water retainability and friendliness to the environment are also disclosed. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
