Web processing with electrostatic cooling
US6376024B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F23/0476
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for processing a moving web of material is provided with an applicator that applies a liquid material to the moving web, a drying apparatus that heats the web to an initial temperature, a first cooling apparatus that causes the web to be cooled to a second temperature that is at least about 20° F. lower than the initial temperature, and a second cooling apparatus disposed after the first cooling apparatus that causes the web to be cooled to a third temperature that is at least about 20° F. lower than the second temperature. The first cooling apparatus includes a generator adapted to generate a directed electrostatic field through which the web passes and a sprayer adapted to spray liquid through the electrostatic field and onto the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.