| abstract |
This invention relates to a multi-layered film that has high flexibility, tear resistance, heat sealability, interlayer contact strength, and biodegradability. The multi-layered film comprising layer (X) and layer (Y) which meet requirement (A): layer (X) comprises (a) lactic acid based resin, (b) biodegradable resin except lactic acid based resin, and (c) block copolymer resin of polyether segment and polylactic acid segment wherein resin (a), (b), and (c) account for 20-85 parts, 10-50 parts, and 5-30 parts by mass, respectively (resin (a), (b), and (c) in total account for 100 parts by mass) and requirement (B): layer (Y) comprises (d) aliphatic-aromatic polyester and resin (e) as defined below wherein resin (d) and (e) account for 30-100 parts and 0-70 parts by mass, respectively (resin (d) and (e) in total account for 100 parts by mass) Resin (e): at least one resin selected from the group consisting of lactic acid based resin, aliphatic polyester, polypropylene carbonate, and polyhydroxy alkanoate. |