Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1996-05-09
1998-09-08
Loney, Donald
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428 342, 428 369, 428167, 428213, 229 45, B32B 300, B65D 300
Patent
active
058042849
ABSTRACT:
The invention provides a continuous paperboard sheet adapted to be slit longitudinally into a plurality of continuous paperboard plies, and to improved paperboard plies for forming single-layer, paperboard tubes. The paperboard sheet has a substantially constant width and includes a plurality of thick longitudinal sections and a plurality of thin longitudinal sections. The thick and thin sections are arranged in alternating relation across the width of the paperboard sheet. The sheet is slit longitudinally along the thin sections to provide a plurality of tube-forming paperboard plies.
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Hall Jerry S.
King Henry L.
Lennon George E.
Merritt Kevin R.
Loney Donald
Sonoco Products Company, Inc.
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