REFLECTION FILM AND REFLECTION PLATE

摘要

PROBLEM TO BE SOLVED: To provide a novel reflection film improving light reflectivity and dimensional stability under a heated condition.

SOLUTION: The reflection film is provided with a layer A containing an aliphatic polyester based resin and a powdery filler, a layer B containing a polyolefin based resin and a powdery filler and a layer C composed of a biaxially oriented polyester film. Light reflectivity can be obtained from refractive scattering due to difference between refractive indices of the aliphatic polyester based resin and the powdery filler in the layer A and light transmitted through the layer A can be reflected again in the layer B. Thereby, higher reflectivity can be obtained. The layer C can reduce dimensional change of the film at 80°C and dimensional stability under the heated condition is increased.

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