| 摘要 |
<p>An object of the present invention is to provide a multilayered polyamide-based tube for food packaging that is free from blocking in a Layer (C), and that has an excellent adherence to processed meat or like packaged food. The present invention provides a multilayered polyamide-based tube for food packaging comprising a Layer (A), a Layer (B) and a Layer (C);
the multilayered polyamide-based tube having a low-temperature shrinkage ratio of 2 to 10%, and exhibiting heat shrinkage properties and gas barrier properties;
the Layer (A) containing a polyamide-based resin;
the Layer (B) containing a polyolefin-based resin; and
the Layer (C) that comes in contact with the packaged food,
the Layer (C) being a Layer (C-1) that contains a polypropylene-based resin having a heat distortion temperature (ISO 75B-1 or ISO 75B-2) of not less than 60°C and a Vicat softening point of not less than 120°C, and that has a surface wetting tension of not less than 35 mN/m; or
the Layer (C) being a Layer (C-2) that contains a linear low-density polyethylene having a density of not less than 0.92 g/cm 3 but less than 0.95 g/cm 3 , and that has a surface wetting tension of not less than 35 mN/m.</p> |
