Patent ID: 8728614

Claim:
A backside protective film, comprising: a first resin layer, a second resin layer, and a third resin layer sequentially, wherein said first resin layer is an infrared transmissible colored resin layer comprising a rubber comprising an aromatic vinyl-based resin having a maximum glass transition temperature in a range from 90° C. to 118° C. according to JIS K 7121, and an infrared transmissible coloring agent, and having a thickness in a range from 10 to 300 μm, wherein said second resin layer is a white-based resin layer comprising a rubber comprising aromatic vinyl-based resin having a maximum glass transition temperature in a range from 90° C. to 118° C. according to JIS K 7121, and a white-based coloring agent, and having a thickness in a range from 10 to 300 μm, and wherein said third resin layer is a resin layer comprising a saturated polyester resin and having a thickness in a range from 10 to 300 μm, and is a resin layer comprising a film having a ratio of dimension change between before and after the film is left to stand still at a temperature of 135° C. for 30 minutes of ±0.5% or less.