Method for manufacturing resin thin film stripped pieces
AssigneeZeon Corporation
InventorYusuke Warabiminami
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Abstract
A method for producing flakes of a resin thin film including: a step (1) of forming a resin thin film on a substrate film to obtain a multilayer film; a step (2) of pressing the multilayer film by a member having a concavo-convex shape to form cracks in the resin thin film; and a step (3) of stripping the resin thin film from the substrate film to obtain flakes. The step (2) is preferably performed with a pressing pressure of 100 MPa or less. The resin thin film is preferably formed of a cured product of a photocurable liquid crystal composition. The resin thin film is preferably a cholesteric resin layer.
Claims7
A method for producing flakes of a resin thin film comprising:
- a step (1) of forming a resin thin film on a substrate film to obtain a multilayer film;
- a step (2) of, after the step (1), forming cracks in a grid pattern in the resin thin film by pressing the multilayer film with a plurality of members each having a concavo-convex shape;
- and
- a step (3) of, after the step (2), stripping the resin thin film from the substrate film to obtain flakes,
- wherein the resin thin film is a cholesteric resin layer.
A method for producing flakes of a resin thin film comprising:
- a step (1) of forming a resin thin film on a substrate film to obtain a multilayer film;
- a step (2) of, after the step (1), forming cracks in a grid pattern in the resin thin film by pressing the multilayer film with a plurality of members each having a concavo-convex shape;
- and
- a step (3) of, after the step (2), stripping the resin thin film from the substrate film to obtain flakes, wherein
- the step (3) includes:
- a step (3A) of spraying a fluid onto a portion of the resin thin film where the cracks have been formed to blow away the resin thin film having the cracks formed therein;
- a step (3B) of collecting the blown resin thin film;
- and
- a step (3C) of pulverizing the collected resin thin film.
Dependencies are inferred from the claim text.