| abstract |
PROBLEM TO BE SOLVED: To provide a method for evaluating a support for forming a solution for forming a surface suitable for optical use having excellent flatness and eliminating surface defects, a support, and film production using the support. Methods and films are provided. SOLUTION: An operation of casting a solution containing water, in which a resin is dissolved in a halogen-containing solvent, on a support to form a liquid film, drying the liquid film, and peeling off the film to remove it. Repeatedly, the evaluation method of the metal support for solution casting to compare the surface defects of the support before and after the support, the support, A film production method and a film using the support. |