Apparatus for the manufacture of a structured fiber web
US7291249B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Dec 11, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F11/006
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for the manufacture of a structured fiber web including an imprinting fabric, a first pressure field device, a second pressure field device and a drying cylinder. The fiber web is formed and carried on the imprinting fabric with an initial dry content of less than 35%. The first pressure field device applies a first pressure field to the imprinting fabric and the fiber web, thereby pressing the fiber web onto the imprinting fabric, thereby pre-imprinting the fiber web. The second pressure field device applies a second pressure field to the imprinting fabric in the fiber web, thereby again pressing the fiber web onto the imprinting fabric, drying the fiber web and fixing a three-dimensional surface structure in the fiber web. The drying cylinder has the fiber web delivered thereto by the imprinting fabric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.