Bulk material for packaging, packaging unit using same, process and apparatus for producing them

Abstract

Chips of cardboard, in particular of packing cardboard, which are formed by cutting flat, preferably used packing cardboard lengthwise and crosswise, and the bulk volume of which is increased by copings and/or bent-over portions and/or peaks and/or recesses are provided, as is a packing unit comprising a wrapper, loosely filled at least to a substantial proportion with the bulk packing material made from a web of paper, in which the wrapper is formed by the web of paper shaped in the manner of a helical roll, the adjacent, helically extending long edges of which web are joined overlapping one another, and in which the wrapper is closed at both ends in the manner of a sack, and as is a process in which the cardboard, in particular packaging cardboard, is comminuted (cut) and is deformed to increase the bulk volume of the chips forming the packaging material, as well as an apparatus having a device for comminuting cardboard, in particular packaging cardboard, having one lengthwise and one crosswise cutting unit, and by a device for deforming the cardboard for the increasing of the bulk volume of the chips forming the packaging materials.

Dependencies are inferred from the claim text.