Patent ID: 8920890

Claim:
A label for in-mold forming which comprises a thermoplastic resin film base layer (I), a heat-sealable resin layer (II), and an antistatic layer (III), wherein the thermoplastic resin film base layer (I) is a multilayered resin film comprising a biaxially stretched layer and a uniaxially stretched layer, the heat-sealable resin layer (II) comprises a heat-sealable resin including a copolymer of propylene and butene-1, the heat-sealable resin having a degree of non-crystallinity below 90° C. of 65 to 90%, wherein the content of butene-1 in the propylene/butene-1 copolymer is 11.5 to 25 mol %, the antistatic layer (III) comprises an antistatic agent in an amount of 0.001 to 1 g per unit area (m 2 ) and the surface of the layer has a wettability index (JIS-K-6768) of 32 to 54 mN/m, and the label has a porosity higher than 10% and not higher than 70% and has an opacity (JIS-P-8138) higher than 20% and not higher than 100%, wherein the degree of non-crystallinity below 90° C. (%)=100−100×(quantity of heat of fusion at temperatures of 90° C. and higher)/(quantity of heat of fusion in 100% crystalline state).