Abstract: This polypropylene film has a polypropylene-based resin as a main component, and is configured such that the value (strength X) obtained by multiplying the film thickness by the F5 value in a direction perpendicular to the principal orientation axis is 400 N/m or more and 2000 N/m or less. As measured by thermomechanical analysis (TMA), when: the thermal shrinkage (%) at 100° C. in a direction perpendicular to the principal orientation axis is SMD, 100° C.; the thermal shrinkage at 130° C. in a direction perpendicular to the principal orientation axis is SMD, 130° C.; the thermal shrinkage at 100° C. in the principal orientation axis direction is STD, 100° C.; and the thermal shrinkage at 130° C. in the principal orientation axis direction is STD, 130° C., the propropylene film satisfies |SMD, 100° C.?SMD, 130° C.|?2.00 and |STD, 100° C.?STD, 130° C.|?2.50.

Abstract: The present invention addresses the problem of providing a polypropylene film which is structurally stable to heat in deposition when used for packaging, and has appropriate slipperiness without using an anti-blocking agent or particles, and thus has excellent water vapor barrier properties and oxygen barrier properties, in particular, when a transparent deposited layer is laminated. Moreover, the present invention provides a polypropylene film characterized by having at least two types of layers (A layer and B layer) containing a polypropylene-based resin as a main component, wherein the B layer contains a thermoplastic resin incompatible with a polypropylene-based resin, and when the skewnesses Ssk of the A layer and the B layer, as measured through three-dimensional noncontact surface shape measurement, are Ssk (A) and Ssk (B), respectively, the Ssk (B) is at least 5 and the Ssk (A) is less than 5.

Abstract: A laminated film has a resin layer on at least one surface of a polyester film, in which the resin layer is on at least one surface layer, the water contact angle of the resin layer is 85°-100°, inclusive, and |H2-H1|?1.0 (%) is satisfied, H1 (%) being the haze of the laminated film and H2 (%) being the haze of the laminated film after being immersed in a solvent and subjected to a rub test. This laminated film has excellent coating and releasability properties with respect to ceramic slurry.

Abstract: A laminated film has a resin layer on at least one surface of a polyester film, in which the resin layer is on at least one surface layer, the water contact angle of the resin layer is 85°-100°, inclusive, and |H2?H1|?1.0 (%) is satisfied, H1 (%) being the haze of the laminated film and H2 (%) being the haze of the laminated film after being immersed in a solvent and subjected to a rub test. This laminated film has excellent coating and releasability properties with respect to ceramic slurry.