| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of producing a film body exerting high bas barrier properties in a high-humidity atmosphere and having excellent mechanical strength.SOLUTION: A film body to be produced contains fine cellulose fiber having a content of carboxy groups in cellulose of 0.1-3 mmol/g, a laminar inorganic compound and a polyacrylamide. The method of producing the film body includes a coating liquid preparation step of using a nonionic polyacrylamide as a polyacrylamide and mixing the nonionic polyacrylamide, the fine cellulose fiber, the laminar inorganic compound and a liquid medium together to prepare a coating liquid and a coating film formation and drying step of forming a coating film from the coating liquid and drying the coating film at drying temperatures of 80-250°C. |
