Heat-shrinkable polyester film

A heat-shrinkable polyester film, comprising a polyester resin made from a dicarboxylic component and a diol component,

• wherein the dicarboxylic component includes at least one of terephthalic acid and dimethyl terephthalate, the diol component including ethylene glycol and a diol mixture that includes a first diol and a second diol, the first diol being 2-methyl-1,3-propanediol, the second diol being selected from the group consisting of neopentyl glycol, 1,4-cyclohexanedimethanol, and a combination thereof,
• wherein based on 100 mol % of the diol component, the ethylene glycol is present is an amount ranging from 74 mol % to 82 mol %, the diol mixture is present in an amount ranging from 18 mol % to 26 mol %, and the 2-methyl-1,3-propanediol is present in an amount ranging from 3.5 mol % to 22 mol %, and
• wherein the heat-shrinkable polyester film has:
• a heat shrinkage in a direction transverse to a machine direction of greater than 48% in hot water at 95° C. for 10 seconds;
• a heat shrinkage in the machine direction of less than 5% in hot water at 95° C. for 10 seconds;
• an intrinsic viscosity of greater than 0.5 dL/g;
• and
• a yield strength in the direction transverse to the machine direction which ranges from 7.5 MPa to 13 MPa.