Title:
BIAXIALLY ORIENTED POLYPROPYLENE-BASED FILM
Document Type and Number:
WIPO Patent Application WO/2018/142983
Kind Code:
A1
Abstract:
Provided is a biaxially oriented polypropylene-based film that exhibits high laminate strength with respect to another film member and achieves excellent adhesion of print ink and excellent print ink transferability from a print roll to a film without compromising the excellent transparency and mechanical properties inherent to a biaxially oriented polypropylene-base film. This biaxially oriented polypropylene-based film is characterized by having a base material layer (A) which consists chiefly of a polypropylene-based resin and a surface layer (B) which consists chiefly of a polypropylene-base resin and which is disposed at least on one surface of the base material layer (A), wherein: the surface of the surface layer (B) on the side opposite to the base material layer (A) has a surface roughness of 0.027-0.040 μm, has a specific surface resistance of at least 15 Log Ω, and has a wet tensile strength of at least 38 mN/m; and the film has a film thickness of 9-200μm and a haze (transparence) value of at most 5%.
Inventors:
KINOSHITA OSAMU (JP)
YAMADA KOJI (JP)
YAMADA KOJI (JP)
Application Number:
PCT/JP2018/001767
Publication Date:
August 09, 2018
Filing Date:
January 22, 2018
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/32
Domestic Patent References:
| WO2017170244A1 | 2017-10-05 |
Foreign References:
| JPH0349952A | 1991-03-04 | |||
| JP2002210901A | 2002-07-31 | |||
| JP2000233478A | 2000-08-29 | |||
| JP2000127310A | 2000-05-09 | |||
| JP2010150344A | 2010-07-08 |
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