Abstract: There is provided a packaging film which has a good suitability for use in an automatic packaging machine, and is free from occurrence of sagging even when stored in a low-temperature condition for a long period of time as well as hardly suffers from occurrence of whitening when subjected to high stretch packaging. The stretch packaging film of the present invention comprises a laminated film having at least three layers comprising opposite surface layers each comprising an ethylene-based resin (A) as a main component and an intermediate layer comprising a propylene-based resin (C) and a propylene-based resin (B) which respectively satisfy specific conditions, at a specific compounding ratio, and having a heat of crystallization (?Hc) of 10 to 60 J/g as measured at a temperature drop rate of 10° C./min using a differential scanning calorimeter (DSC) and a storage elastic modulus (E?) at 20° C.

Abstract: There is provided a novel chlorine-free stretch packaging film which has good packaging workability, packaging finish, elastic recovery, bottom sealing stability and transparency, hardly suffers from occurrence of tearing thereof and breakage when used in a low temperature condition, and is excellent in storage stability as pellets and economy. The stretch packaging film of the present invention comprises a layer X comprising a resin composition X which comprises, as main components, a propylene-ethylene random copolymer (A) which has an ethylene content of not less than 5% by mass and satisfies the condition that a single peak is observed in a crystallization curve of the component (A), and the peak temperature is not higher than 70° C. (condition (1)), and a crystalline polypropylene-based resin (B) which satisfies the condition that among peaks observed in a crystallization curve of the component (B), the maximum peak temperature is higher than 70° C.