Method and apparatus for controlling coat-weight profile
US6024797A · kind A · utility
8Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/78
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and apparatus for applying a uniform coating to a moving paper web by utilizing a coating applicator with regional cross-machine zones from which coating quality or excess coating can be monitored and analyzed. As the coating conditions vary between regional zones, upstream liquid coating flow parameters can be varied for a particular region to render uniform coating profiles across the entire machine-direction of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.