Patent ID: 7897219

Claim:
A web for forming dunnage units, comprising: a first elongated layer; a second elongated layer superposed over the first elongated layer, the first and second layers connected together at an inflation edge and an opposite edge; a plurality of seals, each of said seals extending from the opposite edge to a seal end that is a first distance from the inflation edge, such that pockets are bounded by the first elongated layer, the second elongated layer, the inflation edge, and the seal ends, and wherein said opposite edge and said seals form a plurality of inflatable pouches; a first plurality of lines of perforations through the first and second elongated layers, wherein each line of said first plurality of lines of perforations has a starting point in one of said pockets between the inflation edge and the seal ends and each of said lines of said first plurality of lines of perforations extends toward the opposite edge, wherein the starting points are positioned at a second distance from the inflation edge that is greater than a distance between successive perforations in the first plurality of lines of perforations, and wherein said second distance is less than said first distance; a second plurality of lines of perforations through the first and second elongated layers that are aligned with and extend toward the first plurality of lines of perforations from said opposite edge; a plurality of gap forming lines that extend from the first plurality of lines of perforations to the second plurality of lines of perforations, wherein the gap forming lines are configured such that a force required to spread the gap forming lines apart is less than a force required to break the lines of the first plurality of lines of perforations apart and said force required to spread the gap forming lines apart is less than a force required to break the lines of the second plurality of lines of perforations apart.