Patent ID: 8420193

Claim:
A heat-shrinkable film consisting of a layer or comprising at least one layer, wherein the layer is made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein the polyolefin resin is a soft polypropylene resin or a polyethylene resin having a density of between 0.800 to 0.910 g/cm 3 , wherein a mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 60/40, the polylactic acid resin is a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, wherein a D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus (E′) of the polyolefin resin at 20 degree C. is 100 MPa or less as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film is stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction is 20% or more as measured after the film is immersed in hot water of 80 degree C. for 10 seconds.