INTERIOR HOUSING MATERIAL HAVING SURFACE WITH BACTERICIDAL ACTION, KITCHEN CONSUMER ELECTRONICS WITH TUBE OR COMPONENT HAVING SURFACE WITH BACTERICIDAL ACTION
To provide an interior housing material having a surface with a bactericidal action, and kitchen consumer electronics with a tube or a component having the surface with the bactericidal action.SOLUTION: There are provided an interior housing material having a metal substrate 12, and a porous anode oxidation layer 14 formed on the metal substrate, in which a surface of the porous anode oxidation layer contains a plurality of recesses 14Ap having two-dimensional size of over 100 nm and less than 500 nm in view from a normal direction of the surface, the surface has a projection 15 formed between neighboring recesses, the projection has a ridge line formed by crossing side surfaces of the neighboring recesses and the surface has a bactericidal action, and kitchen consumer electronics having a tube or a component of which a surface has the bactericidal action.SELECTED DRAWING: Figure 1【課題】殺菌作用を備えた表面を有するインテリア建材および殺菌作用を備えた表面を有する管または部品を備えるキッチン家電の提供。【解決手段】金属基材１２と、金属基材上に形成されたポーラス陽極酸化層１４とを備え、ポーラス陽極酸化層の表面は、表面の法線方向から見たときの２次元的な大きさが１００ｎｍ超５００ｎｍ未満である複数の凹部１４Ａｐを含み、表面は、隣接する複数の凹部の間に形成された突起部１５を有し、突起部は、隣接する複数の凹部の側面が交わることにより形成された稜線を有し、表面が殺菌効果を有する、インテリア建材、および表面が上記殺菌効果を有する管または部品を有する、キッチン家電。【選択図】図１
