LAMINATE FILM

摘要

[MEANS FOR SOLVING] A composite film is one that includes at least a urethane polymer, wherein a ”b* value (value at an acceptance angle of 15 degrees) measured by a spectrocolorimeter after 120 hours in an accelerated weathering test and a ”b* value (value at an acceptance angle of 15 degrees) in an accelerated heat resistance test in a dark place under an atmosphere of 80°C are both 4. 0 or less. The composite film preferably, has a ”b* value (value at an acceptance angle of 15 degrees) in an accelerated moist-heat resistance test in a dark place under an atmosphere of 85°C and 85% relative humidity of 6.0 or less.