an antibacterial member is provided which has no harmful effect on a content therein such as food and a pharmaceutical agent , but exerts sufficient and long - lasting antibacterial effect , and can be manufactured easily at low cost . in particular , provided is an antibacterial member suitable for a container of milk and a box lunch ; the antibacterial member is composed of at least one base member and at least one plastic film fixed to said base member , wherein at least one inorganic antibacterial agent is contained in said base member and / or at least one of compositions disposed between said base member and said plastic film , no inorganic antibacterial agent is contained in said plastic film , said base member and said composition do not come in direct contact with a content , and said plastic film comes in direct contact with a content such as food .