| 摘要 |
PROBLEM TO BE SOLVED: To provide a back protective sheet having the adhesion during use, that is required as a sealant for solar cell module, and also has the reworkability immediately after laminate, that is contributive to enhancement of productivity of the solar cell module.SOLUTION: A back protective sheet 6 consists of a plurality of layers including a base material layer 61, and an adhesion reinforcing layer 62 arranged at the outermost layer. The adhesion reinforcing layer 62 contains polyethylene-based resin crosslinked by ionization radiation, and the heating tensile strength of which is 0.1-5.0 MPa. Crosslinking of the polyethylene resin is preferably performed by irradiating the ionization radiation. |
