| 摘要 |
<p>A method for forming a laminate material, the method including the steps of: a) treating a sheet of planar material with an adhesive, b) winding the planar material about a mandrel to form the laminate material from a plurality of layers of the planar material, and c) applying pressure to a first portion of the planar material such that substantially stronger bonding occurs between the layers of planar material corresponding to the first portion of the planar material than between the layers of material corresponding to a second portion of planar material, wherein the second portion of planar material forms a controlled area of weakness. Apparatus for use in the described method is also claimed, as well as laminate material and a collapsible container made using the claimed method.</p> |
