Method and apparatus for processing a web of material
US5619807A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Mar 30, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2515/40
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for processing a web of material, which is dispensed from a roll and fed through at least one roller gap of a roller-gap system which includes a processing station, an unrolling station on the input side of the processing station, and a roll magazine on the input side of the unrolling station which magazine includes at least one roll storage position. When rolls of web material are processed, the processing delay times lead to an uneven distribution of the temperature and/or moisture within the roll which in turn causes nonuniformity of the results in the processing station. The web of material still on the roll is exposed, prior to being unrolled, to a preselected atmospheric environment for a predetermined minimum length of time. Accordingly, the roll storage position is located in a chamber, the atmosphere of which can be controlled to a preset temperature and/or humidity level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.