Pack of objects wrapped in a plastic film, plastic film for such a pack, and method of manufacturing such a plastic film

摘要

The package (1), comprising a series of objects (2) in one or more layers, is wrapped in plastics film (3) with a preferred tearing direction (D) and a zone (A) of reduced strength across it. The zone of reduced strength is made from rows of perforations (7, 9, 10) lying perpendicular to the preferred tear direction. This creates a zone with a mechanical strength which is sufficient to hold the packaged articles in position, while being sufficiently weak to allow the package to be opened at any point along the zone without the aid of a tool. The film is in the form of coextruded polyethylene/ionomer layer, and especially comprising at least one layer of a polyolefin and at least one layer of an ionic copolymer. The perforations are between 5 and 30 mm apart and cover a zone 30-100 mm wide.