Surface treatment method for copper or copper alloy, surface treatment solution for sterilizing copper or copper alloy, and sterilization method using copper or copper alloy treated by the method
The present invention provides a surface treatment method capable of improving the antibacterial property of copper or a copper alloy and enhancing the rapid effect of the antibacterial action on the surface of copper or a copper alloy. The surface treatment method of copper or copper alloy according to the present invention comprises a step of preparing a reducing agent solution containing a bioreductive substance, and a step of treating the surface of copper or copper alloy with the reducing agent solution. And Further, according to the present invention, there is provided a surface treatment liquid for sterilization of copper or a copper alloy, which contains an in vivo reducing substance. Further, according to the present invention, there is provided a sterilization method characterized in that the surface of an object is brought into contact with copper or a copper alloy treated by the surface treatment method, thereby sterilizing the surface of the object. .本発明は、銅または銅合金の持つ抗菌性を向上させ、銅または銅合金の表面での抗菌作用の速効性を高めることができる表面処理方法を提供する。本発明に係る銅または銅合金の表面処理方法は、生体内還元物質を含む還元剤溶液を調製する工程と、銅または銅合金の表面を前記還元剤溶液で処理する工程とを含むことを特徴とする。また、本発明によれば、生体内還元物質を含むことを特徴とする銅または銅合金の殺菌用表面処理液が提供される。また、本発明によれば、前記表面処理方法によって処理された銅または銅合金を対象物の表面に接触させ、これにより前記対象物の表面を殺菌することを特徴とする殺菌方法が提供される。
