| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easily adhesive optical polyester film which suppresses development of iris-like color under a fluorescent lamp in laminating an optically functional layer such as a hard coat layer, excels in initial adhesion to various optically functional layers, wet heat adhesion resistance and light resistance, and is used for a base of an optically functional film. <P>SOLUTION: The easily adhesive optical polyester film is obtained by laminating an easily adhesive layer on at least one surface of a biaxially stretched polyester film containing an ultraviolet absorber and having a light transmittance at 380 nm wavelength of ≤30%, wherein the easily adhesive layer is a coating layer formed by applying and drying a water-based coating liquid containing an aqueous polyester resin (A) and at least one (B) of water-soluble titanium chelate compounds, water-soluble titanium acylate compounds, water-soluble zirconium chelate compounds or water-soluble zirconium acylate compounds as main constituents in a (A) to (B) mass ratio of 10:90 to 95:5, and by carrying out stretching in at least one direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
