Abstract: Provided is a layered film having suitable easy-unsealability and having high sealing strength even under high temperature. A layered film with such suitable easy-unsealability and high sealing strength under high temperature includes a surface layer (A), an intermediate layer (B), and a seal layer (C), in which the surface layer (A) and the seal layer (C) each includes a polypropylene-based resin as a main component, the intermediate layer (B) includes a polypropylene-based resin (b1) and a polyethylene-based resin (b2), resin components in the intermediate layer (B) has a polypropylene-based resin (b1) content of 40 to 70% by mass and a polyethylene-based resin (b2) content of 30 to 60% by mass, the intermediate layer (B) has a thickness of 15% or less of the overall thickness of the layered film, and the seal layer (C) has a thickness of 15% or less of the overall thickness of the layered film.

Abstract: An easily unsealable laminate film for use in bonding of a resin-based nonwoven fabric includes: a heat-seal layer (A) as one superficial layer to be bonded to the resin-based nonwoven fabric; an interlayer (B) that is laminated on the heat-seal layer (A) and includes, as resin components, an ethylene-based resin (b1) with a melt flow rate of 5 g to 50 g/10 min at 190° C. and a butene-based resin (b2); and a surface layer (C) as another superficial layer, wherein the resin components in the interlayer (B) have an ethylene-based resin (b1) content of 50 mass % to 80 mass % and a butene-based resin (b2) content of 20 mass % to 50 mass %. The easily unsealable laminate film can achieve preferred easy unsealability and a high sealing strength at a high temperature.