PROBLEM TO BE SOLVED: To provide an antimicrobial coating which has improved abilities such as an antimicrobial activity and a deodorizing ability, high physical mechanical strength, improved coating surface appearances, improved hand touches, after coated, and uses a biologically oriented calcium raw material, and to provide a method for producing the same.SOLUTION: The antimicrobial coating produced by mixing coating raw materials with a powdery antimicrobial agent, and the method for producing the same are provided. The powdery antimicrobial agent comprises calcium hydroxide, boron and iron. The content of the boron is &ge0.05 mass% per the total mass of the powdery antimicrobial agent. The content of the iron is <0.8 mass% per the total mass of the powdery antimicrobial agent. The mixing rate of the powdery antimicrobial agent is 10 to 25 mass% per the total mass of the antimicrobial coating. The method for producing the antimicrobial coating, comprising mixing the coating raw materials with the powdery antimicrobial agent, is characterized by including a process for adding water, or an organic solvent-based thinning liquid in a suitable amount responding to the coating raw materials, simultaneously mixing and kneading the mixture with high speed agitation, and sufficiently causing frictional heat generated by the mixing kneading with the high speed agitation to permeate in the whole body of the antimicrobial coating.COPYRIGHT: (C)2012,JPO&INPIT【課題】抗菌、消臭等の能力を向上させ、かつ塗装後の物理的・機械的強度が高く、塗装面の外観および手触り感を向上させた生物由来のカルシウム素材利用の抗菌性塗料、およびその製造方法を提供する。【解決手段】塗料の原材料と粉末抗菌剤とを混合した抗菌性塗料、およびその製造方法であって、粉末抗菌剤は、水酸化カルシウムと、ホウ素と、鉄を含み、ホウ素の含有量が粉末抗菌剤の総質量に対して0.05質量%以上、かつ鉄の含有量が粉末抗菌剤の総質量に対して0.8質量%未満であり、粉末抗菌剤の混合比率が抗菌性塗料の総質量に対して10質量%ないし25質量%の範囲内にあり、塗料の原材料と粉末抗菌剤とを混合する際に、水分または、塗料原材料に応じた適量の有機溶剤系薄め液を加えつつ高速攪拌による混合練成を行い、該高速攪拌による混合練成によって生ずる摩擦熱を抗菌塗料全体に十分に浸透させる工程を含むことを特徴とする。【選択図】図1
