| 摘要 |
<p>The present invention provides a foamed film for shrink labels which is capable of being accommodated by the new continuous attachment system for shrink labels, and in which a long foamed film for shrink labels is wound around the body of a container, and is cut at the inner-position where the film overlaps, after which the two ends of the resulting film unit are joined together to form a cylindrical shape, and this is subsequently heated to cause heat shrinkage of the film and to produce the label. The foamed film for shrink labels of the present invention is a film which stretches a blown film with an expansion ratio of 1.3 to 5 in the longitudinal direction (vertical direction or extrusion direction) so that the draw ratio is 1.5 to 4.0, which has properties such as a thickness of 120 to 300 µm, a tensile elastic modulus of 80 to 500 MPa, a static friction coefficient of 0.3 to 0.8, a coefficient of shrinkage of 15% or more at 90°C and 30% or more at 120°C, and which is foamed and has shrinkability.</p> |
