| 摘要 |
PURPOSE:To provide a heat shrinkable polyester series film having beautiful finish and external appearance without disadvantages such as wrinkling, distortion, shrinkage spots, partial whitening, etc. CONSTITUTION:The heat shrinkable polyester series film contains 40-80mole% of ethylene terephthalate unit, and has 30% or more of heat shrinkability at 100 deg.C and 1.32g/cm<3> or less of a density after it is thermally shrinked. |
