Method for producing cylindrical patterned film, method for producing patterned roll, and peeling device

Abstract

[Problem] To provide a method for preparing a cylindrical pattern film, which can be implemented at a lower cost and which includes a specific technique for separating a resin-made cylindrical pattern film from an original roller, as well as provide a method for preparing a pattern roller using said cylindrical pattern film, and a separation device for said cylindrical pattern film. [Solution] In this invention, a coating is formed by applying a starting solution (20a) of an elastic material to the outer surface of an original roller (10), which is obtained by forming a topological pattern on the outer surface thereof, and the coating is then cured so as to form a cylindrical pattern film (20), which comprises the elastic material and to which the topological pattern is transferred. Three or more blocks (110), the cross sections of which have arc-shaped inner-side surfaces, are provided along the outer surface of the cylindrical pattern film (20) such that the inner-side surfaces (115) of the blocks (110) are arranged in an opposing manner at different positions in the circumferential direction of the outer surface of the cylindrical pattern film (20). The outer surface of the cylindrical pattern film (20) is suctioned by the inner-side surfaces (115) of the blocks (110), and in said suctioned state, the blocks (110) are moved outward in the normal direction with respect to the outer surface of the cylindrical pattern film (20) so as to separate the cylindrical pattern film (20) from the original roller (10).

Description

technical field [0001] The present invention relates to a method for producing a cylindrical patterned film having a fine concave-convex pattern on its surface, and a method for producing a patterned roll provided with the cylindrical patterned film. In addition, the present invention relates to a peeling device for peeling a cylindrical film from a roll-shaped support. Background technique [0002] In recent years, nanoimprinting using web material control technology such as roll-to-roll has been proposed. In such nanoimprinting, for example, on the transport path between a feeding device that feeds out a sheet to be processed (for example, a resin film, an inorganic substrate, etc.) and a take-up device that takes up the sheet, an A patterned roller with a concave-convex pattern (also called a roller mold, a molding roller, or a die roller) conveys the sheet from the discharge device to the take-up device while bringing the patterned roller into contact with the processed...

AI Technical Summary

Problems solved by technology

However, since resist materials are insufficient in rigidity and durability, they are often not suitable for pattern sheet production as pattern rolls for continuous imprinting.

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