Title:
CONTACT ROLL, FILM WINDING DEVICE, AND METHOD FOR MANUFACTURING FILM ROLL
Document Type and Number:
Japanese Patent JP2023018783
Kind Code:
A
Abstract:
To provide a contact roll which enables sufficient reduction of its wrinkles or electrostatic charges of film rolls over a long time in manufacture of film rolls high in surface smoothness.SOLUTION: This contact roll comprises: a first layer composed of an elastic body on a core material; and a second layer which serves as an outermost layer outside the first layer. When a static friction coefficient on the surface of the second layer is μ0 and the thickness of the second layer is t μm, μ0/t is 0.25 or lower.SELECTED DRAWING: Figure 2
Inventors:
NISHIMURA KAZUHIRO
KITADA AKIRA
KITADA AKIRA
Application Number:
JP2021123048A
Publication Date:
February 09, 2023
Filing Date:
July 28, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B65H27/00; B65H18/26; C08J5/18; C23C16/27