HYDROPHILIC COATING FILM AND ARTICLE HAVING THE SAME, AND METHOD FOR FORMING HYDROPHILIC COATING FILM

To provide a coating film of a fluorine resin to which not only anticorrosion property inherent to the fluorine resin but also hydrophilicity can be imparted and which can keep the performance for a long period of time.SOLUTION: A coating film 1 has: a fluorine resin film 3; first hydrophilic particles 4 some of which are buried in the fluorine resin film 3 and some of which are exposed; and second hydrophilic particles 5 some of which are buried in the fluorine resin film 3 and some of which are exposed, in which an average particle size of the first hydrophilic particles 4 is set to 25 μm or more and 700 μm or less, and an average particle size of the second hydrophilic particles 5 is set to 0.05 μm or more and 2 μm or less.SELECTED DRAWING: Figure 1 【課題】フッ素樹脂のコーティング膜において、フッ素樹脂が本来もつ特性である防食性に加えて親水性を付与し、かつその性能を長期間安定して維持できるコーティング膜を得ることを目的とする。【解決手段】フッ素樹脂膜３と、このフッ素樹脂膜３に一部が埋没し、一部が露出した第１親水性粒子４と、フッ素樹脂膜３に一部が埋没し、一部が露出した第２親水性粒子５とを備えており、第１親水性粒子４の平均粒径を、２５μｍ以上７００μｍ以下とし、第２親水性粒子５の平均粒径を、０．０５μｍ以上２μｍ以下としたコーティング膜１である。【選択図】図１