Abstract: The present invention provides a film of an oriented material which exhibits the property of expansion in at least one of its machine and transverse directions at a first temperature and of shrinkage at a second, higher, shrink onset temperature, the film having been annealed after orientation at a temperature above the first temperature and selected with reference to an intended recycling wash-off process to promote expansion of the film at the selected temperature of the wash-off process.

Abstract: A naked collation package comprising a plurality of individual units laid end-to-end or side-by-side to form a unit row comprising at least one interface between a neighbouring pair of individual units in the unit row, the unit row being overwrapped with a sheet of polymeric film having a length and a width, the length of the sheet being sufficient to envelop the unit row with sufficient overlap between the ends of the sheet to provide an overlap region for providing a girth seal along at least part of the length of the unit row, the sheet being sealed to itself in that region to provide the girth seal, and the sheet being provided along its length, or part or parts of it, with a line of weakness positioned in substantial register with the interface.

Abstract: A naked collation package comprising a plurality of individual units laid end-to-end or side-by-side to form a unit row comprising at least one interface between a neighbouring pair of individual units in the unit row; the unit row being overwrapped with a sheet of polymeric film having a length and a width; the length of the sheet being sufficient to envelop the unit row with sufficient overlap between the ends of the sheet to provide an overlap region for providing a girth seal along at least part of the length of the unit row, the sheet being sealed to itself in that region to provide the girth seal; the width of the sheet being: longer than the unit row to provide an envelope seal region in at least one end of the unit row so that the wrapped and girth-sealed sheet is able to fold over and seal to itself at the at least one end of the unit row to provide an envelope seal, the sheet being folded and sealed to itself in that region to provide the envelope seal; or not substantially longer than the unit row

Abstract: A naked collation package comprising a plurality of individual units laid end-to-end or side-by-side to form a unit row comprising at least one interface between a neighbouring pair of individual units in the unit row, the unit row being overwrapped with a sheet of polymeric film having a length and a width, the length of the sheet being sufficient to envelop the unit row with sufficient overlap between the ends of the sheet to provide an overlap region for providing a girth seal along at least part of the length of the unit row, the sheet being sealed to itself in that region to provide the girth seal, and the sheet being provided along its length, or part or parts of it, with a line of weakness positioned in substantial register with the interface.