Shrink films and method for making films having maximum heat shrink

摘要

This invention relates to a method for preparing orienting polyolefin wherein stretching or orientation conditions are defined to maximize the unrestrained shrink response of the film. The invention also relates to a shrink film structure as well as to a shrink film structure made by the novel method wherein in each case the shrink film comprises as the shrink control layer at least one homogeneously branched ethylene interpolymer having a polymer density of less than 0.91 g/cc. The method has commercial and developmental benefits and the film structures can be employed in such uses as industrial collating of paper goods and barrier meat packaging.