Invention Grant
- Patent Title: Coreless tissue rolls
- Patent Title (中): 无芯卷纸
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Application No.: US12606515Application Date: 2009-10-27
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Publication No.: US09126792B2Publication Date: 2015-09-08
- Inventor: Frank Stephen Hada , James Leo Baggot , Robert Eugene Krautkramer , Steven James Wojcik
- Applicant: Frank Stephen Hada , James Leo Baggot , Robert Eugene Krautkramer , Steven James Wojcik
- Applicant Address: US WI Neenah
- Assignee: Kimberly-Clark Worldwide, Inc.
- Current Assignee: Kimberly-Clark Worldwide, Inc.
- Current Assignee Address: US WI Neenah
- Agency: Kimberly-Clark Worldwide, Inc.
- Main IPC: B65H75/24
- IPC: B65H75/24 ; B65H19/28 ; B65H18/28 ; B65H19/22

Abstract:
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.
Public/Granted literature
- US20110095116A1 Coreless Tissue Rolls Public/Granted day:2011-04-28
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