OPTICAL READILY ADHESIVE POLYESTER FILM AND OPTICAL LAMINATED POLYESTER FILM

摘要

PROBLEM TO BE SOLVED: To provide an optical readily adhesive polyester film suppressing an iris-like color under a fluorescent lamp and having excellent adhesiveness to a hard coat layer and excellent adhesiveness (wet heat resistance) under high temperature and humidity conditions.

SOLUTION: The optical readily adhesive polyester film is obtained as follows. At least one surface of a biaxially oriented polyester film is coated with an aqueous coating liquid comprising a resin composition containing an aqueous polyurethane resin (A) and at least one kind (B) of a water-soluble titanium chelate compound, a water-soluble titanium acylate compound, a water-soluble zirconium chelate compound or a water-soluble zirconium acylate compound as main constituent components in (10/90) to (95/5) mixing ratio (mass ratio) of (A)/(B) and dried. A coating layer oriented in at least one direction is then laminated thereto.

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