| 摘要 |
PROBLEM TO BE SOLVED: To obtain an antifogging styrenic transparent resin sheet having an excellent antifogging effect and used in a packaging material field, etc., by treating the surface of a styrenic transparent resin sheet with an anionic surfactant containing a sulfuric ester salt. SOLUTION: This antifogging styrenic transparent resin sheet is obtained by treating the surface of a styrenic transparent sheet (preferably a biaxially oriented GP polystyrene sheet) with an antifogging agent comprising an anionic surfactant containing a sulfuric ester in an amount of >=30 wt.%. The antifogging agent preferably has a solid content of 0.005-0.5 g/m2. The antifogging agent is used as a solution obtained by dissolving the anionic surfactant in a solvent. The solvent includes water and an alcohol. The concentration of the solution is preferably 0.01-10%. The resin sheet preferably has a thickness of 100μm to 10 mm, and has a transparent property having a haze of <=5. |
