Title:
ORIENTED POLYESTER FILM ROLL AND METHOD FOR MANUFACTURING ORIENTED POLYESTER FILM ROLL
Document Type and Number:
Japanese Patent JP2022159254
Kind Code:
A
Abstract:
To provide an oriented polyester film roll that has a good winding appearance when rolled up while suppressing defects (coating hash) when used as a process film.SOLUTION: An oriented polyester film roll obtained by rolling up an oriented polyester film is configured such that, in a range of 0.5 mm to 100 mm in the inner direction of the width direction from the edge of the film in the width direction, when the oriented polyester film is sized to the average value of the horizontal Feret's diameter and vertical Feret's diameter obtained by the cross-Nicol inspection, the number Fe of foreign particles of size 10 to 200 μm is 1 to 10 pieces per 10 m2 .SELECTED DRAWING: None
More Like This:
| JPS5168660 | HORIAMIDO FUIRUMU |
Inventors:
MORIBE JUTTOKU
TAMOTSU HIROTAKA
FUJII HIDEKI
TAMOTSU HIROTAKA
FUJII HIDEKI
Application Number:
JP2022061620A
Publication Date:
October 17, 2022
Filing Date:
April 01, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
B29D7/00; B29C55/02