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AssigneeKimberly-Clark Worldwide, Inc.
InventorsFrank Stephen Hada, James Leo Baggot, Robert Eugene Krautkramer, Steven James Wojcik
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Coreless rolls of tissue, such as rolls of bath tissue or paper towels, are produced by winding tissue logs on a mandrel having retractable pins. During winding, the pins extend and penetrate the first several windings of the log as it is initially wound, which prevents slippage. After the winding is complete, the pins retract to allow the tissue log to slide off of the mandrel for subsequent slitting into individual product rolls and packaging. The penetration of the pins into the first several windings of the log tends to mechanically entangle and structurally unify those windings to create a “soft core”. At the same time, the properties of the tissue sheets within the soft core are the same as the other sheets within the roll and are therefore usable by the consumer.
A coreless roll of tissue comprising a plurality of tissue sheet windings emanating from an axially-oriented central open area and terminating on the outside of the roll, the axially-oriented central open area being lined only by the tissue sheets, wherein two or more consecutive windings closest to the central open area have registered perforations spaced apart in the axial direction of the central open area.
Dependencies are inferred from the claim text.