Patent ID: 7815989

Claim:
A stock material for a dunnage conversion machine comprises at least one ply of sheet material having a plurality of transversely-extending, longitudinally spaced-apart rows of weakened areas, where the weakened areas have a reduced strength relative to adjacent portions of the sheet material, and each row of weakened areas has at least one parameter that varies along the row, whereby the strength of the stock material at the row, in response to a force applied across the row, varies across the stock material, wherein each ply has lateral edge portions that are substantially free of weakened areas, and at least one ply includes paper; wherein the weakened areas include one or more perforations and at least one edge of the stock material is free of perforations for approximately 0.6 cm to 3.8 cm (approximately ¼ inch to 1½ inches) along each row of weakened areas.