Crimping marks reducing wrapper for rolls
US8342388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2007 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A wrapper for wrapping on a roll of length L having two opposed roll ends is described. The wrapper comprises an interior layer of a length Wi and of an interior layer basis weight, adapted to be adjacent the roll when the wrapper is wrapped on the roll; an exterior layer of a length We longer than the length Wi of the interior layer forming at least one end strip of width S and of an exterior layer basis weight, adapted to be outside of the roll when the wrapper is wrapped on the roll. The interior layer basis weight is different from the exterior layer basis weight. The end strip of the exterior layer is adapted to be folded on a corresponding one of the roll ends during crimping following wrapping of the wrapper on the roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.