Biodegradable film for cigarette packaging

A biodegradable film for cigarette packaging, the film comprising:

• a first film layer applied such that one surface thereof faces a cigarette product;
• a third film layer applied such that one surface thereof is exposed to the outside;
• and
• a second film layer positioned between the first film layer and the third film layer,
• wherein the first film layer, the second film layer and the third film layer are each formed with different compositions, and at least one of the first film layer, the second film layer and the third film layer comprises a biodegradable material;
• the first film layer comprises non-crystalline polylactic acid, the second film layer comprises a semi-crystalline biodegradable polymer, and the third film layer comprises polyvinyl chloride or polyvinylidene chloride,
• the second film layer is 90% by volume or more of the biodegradable film, and
• the biodegradable film has a biodegradation rate of 90% or more after 60 days, and has a heat shrink ratio of 4.0% or more.