| 摘要 |
PROBLEM TO BE SOLVED: To provide a light reflection sheet for transfer and a manufacturing method of an optical member in which breaking is hard to occur in peeling a transfer body including a cholesteric liquid crystal layer from a support body, and conveyance of the body is also easy.SOLUTION: A light reflection sheet 11 for transfer comprises a transfer body 6 including a weak peeling separator, a strong peeling separator, a light reflection layer 1 and a film brittleness improving layer 2, the light reflection layer 1 includes a layer on which a cholesteric liquid crystal phase is fixed, the film brittleness improving layer 2 is a layer obtained by curing a composition containing ultraviolet-curable monomer, and edge tear resistance F (N/25 mm) of the transfer body 6, weak peeling strength (N/25 mm) shown by the weak peeling separator, strong peeling strength (N/25 mm) shown by the strong peeling separator, Young's modulus E of the strong peeling separator, and thickness t of the strong peeling separator satisfy the following relationship. 0.01<weak peeling strength; weak peeling strength+0.01≤strong peeling strength<0.04×F; F>π/4 E t. Further, there is provided a manufacturing method of an optical member by using the light reflection sheet 11 for transfer.SELECTED DRAWING: Figure 1 |
