Cross-directional moisture control system and method
US5065673A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Sep 19, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G7/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A moisture control system including an apparatus for discharging independently variable amounts of working fluid toward selected cross-directional sections of a calendered sheet material after the material has left the calender stack and before it is taken up by a collection device. The apparatus includes a plurality of valves spaced across the width of the calendered material to control the amount of fluid applied to each section. Nozzles provided on the valves direct the fluid from the valves toward a surface of the calenderable material. The system permits cross-directional equalization of the moisture content of the calendered material without affecting other physical properties of the sheet, such as sheet finish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.