SEALANT FILM AND USAGE THEREOF

An object of the present invention is to provide a sealant film having sufficient durability (oil resistance) practically required when oils and fats, in particular, oils and fats having a component extracted from spice are filled and packaged, and then, for example, stored and transported, and a packaging bag made of the film, and the present invention relates to a single-layer or multi-layer sealant film composed of an ethylene polymer, the sealant film including, on a surface layer of the sealant film, a layer composed of an ethylene polymer (A) satisfying following requirements (i) to (iii):(i) a density is in a range of more than 910 kg/m3 to less than 940 kg/m3;(ii) a melt flow rate (MFR) at 190°C and a load of 2.16 kg in accordance with JIS K7210-1 is in a range of 0.1 to 20 g/10 min; and(iii) a content of a copolymer (A2) of ethylene and an α-olefin having 4 or less carbon atoms is 0% by mass or more and 50% by mass or less, and a content of a copolymer (A1) of ethylene and an α-olefin having 5 or more carbon atoms is 26% by mass or more and 100% by mass or less.