Title:
FILM ROLL AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2023097406
Kind Code:
A
Abstract:
To provide a film roll which suppresses winding slippage in which film end surfaces of the film roll are uneven and suppresses occurrence of wrinkle defect and charge defect of the film.SOLUTION: In a film roll, absolute values of a charge amount in a region within 100 mm from an end part in a width direction of a film are both more than 3.0 kV and less than 4.0 kV, and the absolute value of the charge amount in a central part in a width direction of the film is 0 kV or more and 1.5 kV or less.SELECTED DRAWING: Figure 1
Inventors:
ONO KOHEI
Application Number:
JP2022205295A
Publication Date:
July 07, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B65H18/28; B29C55/12; B65H20/14; B65H23/038; C08J5/18