Title:
KNURLED LONG RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2023/058575
Kind Code:
A1
Abstract:
To provide, in a long film wound in a roll shape, a long film in which knurls are unlikely to be crushed and static buildup during unwinding is suppressed to the winding core, and furthermore, a long film in which the occurrence of winding deviation and wrinkling is suppressed during storage and transport and high flatness is maintained. A long resin film wound in a roll shape, wherein the long resin film is characterized in that knurling is performed near both edges of the film width, and the ratio (Hnse/Anse) of the height (Hnse) per knurl of the surface layer portion and the convex area (Anse) per knurl is 1.5×10-5 to 17.5×10-5/μm for both the right knurls and left knurls of the right knurls and left knurls. Moreover, when an observer faces the roll and the film is unwound forward from the top of the roll, the knurls on the right edge are called the right knurls and the knurls on the left edge are called the left knurls.
Inventors:
ABE TAKAHISA (JP)
ISHIKAWA JUNJI (JP)
NAKAJIMA WATARU (JP)
KODOU MASAMI (JP)
ISHIKAWA JUNJI (JP)
NAKAJIMA WATARU (JP)
KODOU MASAMI (JP)
Application Number:
PCT/JP2022/036726
Publication Date:
April 13, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B05D7/00; B05D7/04; B29C59/04; B65H18/20; C08J7/04
Domestic Patent References:
| WO2019097977A1 | 2019-05-23 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Download PDF: