| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a transparent heat ray reflection film having excellent thermal insulation performance by enabling a protective layer and an optical control layer to be laminated without using an adhesive high in absorptivity of infrared rays.SOLUTION: A transparent heat ray reflection film 1 according to the present invention comprises a heat ray reflection layer 2 comprising thin film of metal or alloy, a protective layer 3 comprising a film comprising polyolefin resin and disposed on one face 2a side of the heat ray reflection layer 2, and an optical control layer 4 comprising metal oxide and disposed between the heat ray reflection layer 2 and the protective layer 3. The optical control layer 4 comprises one selected from the group consisting of zinc oxide, niobium oxide and zirconium oxide and is directly laminated on the protective layer 3.</p> |
