Multilayer heat-shrinkable styrene-based film and method for producing the same

摘要

Disclosed is a heat-shrinkable multilayer styrene film which is excellent in lubricity and blocking resistance, and hardly causes ink scattering during printing. Specifically disclosed is a heat-shrinkable multilayer styrene film comprising a layer containing 0.8-2.5 parts by weight of a polystyrene resin and 0.02-0.15 part by weight of organic fine particles having an average particle diameter of 0.5-5μm per 100 parts by weight of a block copolymer composed of a vinyl aromatic hydrocarbon and a conjugated diene hydrocarbon at a composition ratio within a specific range, and a layer containing a block copolymer composed of a vinyl aromatic hydrocarbon and a conjugated diene hydrocarbon at a composition ratio within a specific range or a layer containing a resin composition including a copolymer composed of a vinyl aromatic hydrocarbon and an aliphatic unsaturated carboxylic acid ester at a composition ratio within a specific range.