PROBLEM TO BE SOLVED: To provide a soap excellent in continuous antibacterial, antiviral, and deodorizing properties.SOLUTION: This invention relates to a soap having as a raw material, a mixed solution obtained by mixing a gelled soap base with a platinum nanocolloid solution, wherein the platinum nanocolloid solution to be mixed is 5-10 mass% based on the soap base and contains platinum nanoparticles having an average particle diameter of 1-10 nm. When the soap is used, a continuous antibacterial and antiviral effects and deodorizing properties of the platinum nanoparticle can be obtained sufficiently, thereby keeping clean an object to be washed.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】 持続的な抗菌性、抗ウィルス性及び消臭性に優れた石鹸を提供する。【解決手段】 ゲル状の石鹸素地に白金ナノコロイド溶液を混合した混合液を素材とする石鹸において、前記白金ナノコロイド溶液は、前記石鹸素地に対して5質量%~10質量%で混合され、平均粒径が1nm~10nmの白金ナノ粒子が含有されており、当該石鹸を使用すると、白金ナノ粒子の持続的な抗菌効果、抗ウィルス効果及び消臭性を十分に得ることができ、洗浄対象を清潔に保つことができる。【選択図】図1
