| 摘要 |
A laminated draw-formed container that is obtained by draw-forming a laminated material of a metal plate on which a resin film is laminated into a cup having bottom, wherein said resin film comprises a surface layer of a high molecular oriented copolymerized polyester derived from acid components of 85 to 97% of terephthalic acid and 3 to 15% of isophthalic acid, and a diol component, and a lower layer of a low molecular oriented copolymerized polyester (B) derived from acid components of 84.5 to 96.5% of terephthalic acid and 3.5 to 15.5% of isophthalic acid, the amount of the isophthalic acid being larger than that of the copolymerized polyester (A) of the surface layer, and a diol component, and said surface layer having a double refraction method orientation degree ( DELTA n) as represented by the following relation, DELTA n=n1-n2wherein n1 is a refractive index in the direction of a maximum orientation of the film, and n2 is a refractive index in the direction of thickness of the film, which is not smaller than 0.02. The laminated draw-formed container exhibits markedly improved dent resistance and corrosion resistance even after the container is preserved, as well as improved adhesion property and workability, and prevents the adsorption of flavor components and the elution of resin components into the content, making it possible to greatly improve flavor retentivity of the content.
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