Abstract:
A binder composition for polyester type films showing superior transparency, film hardness and solvent resistance as well as superior adhesion to polyester type films and an optical film using the composition are provided. The binder composition for polyester type films of the present invention contains a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d). The optical film of the present invention is an optical film including a polyester type film and a functional layer provided on the polyester type film, the functional layer containing a high-molecular weight polymethyl methacrylate (a), an acrylic polyol (b), an isocyanate type curing agent (c), and a polyester resin (d).
Abstract:
PROBLEM TO BE SOLVED: To provide a mark sampling method that enables sharp sampling of marks such as footmarks, tire tracks, fingerprint marks or the like, a mark preserving set that enables sharp sampling of the marks to preserve them, and a transfer sheet that enables sharp sampling of the marks.SOLUTION: The marks are sampled by performing a process which includes a process (a) for bonding the transfer sheet, wherein the Shore A hardness of a resin layer by JIS K6253 is 0° or above and 80° or below and the peak value of the initial peel strength of the resin layer is 0.15 MPa/50 mm or below, is bonded to the marks to transfer the marks to the transfer sheet and a process (b) for transferring the marks transfered to the transfer sheet to the pressure-sensitive layer of a pressure-sensitive sheet having the pressure-sensitive layer on a base material.