| 摘要 |
Disclosed is a back sheet (1) for a solar battery. The back sheet (1) comprises a first resin layer (11), a second resin layer (12), a third resin layer (13) and a fourth resin layer (14) that is a rear surface-protecting layer or a white resin layer in this order, wherein at least one layer selected from the first resin layer, the second resin layer and the third resin layer is an infrared ray-permeable colored resin layer. The back sheet (1) has a dark-colored appearance. In the sheet, the thickness (HA) of the first resin layer (11), the thickness (HB) of the second resin layer (12) and the thickness (HC) of the third resin layer (13) meet requirements represented by the following formulae: 0.4 = (HA+HC)/HB = 2.4 and 0.7 = HA/HC = 1.3. The sheet preferably has a thickness of 50 to 1,000 µm. |
