Method of drying a web
US6631566B2 · kind B2 · utility
4Cited by
33References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of drying a paper web is provided. The method utilizes a dryer, such as a through-dryer, having a first dryer section and a second dryer section. Within the first dryer section, a relatively wet paper web is dried at an elevated temperature, such as between about 400° F. to about 500° F. After being dried by the first dryer section, the web is relatively dry and is further dried by the second dryer section at a reduced temperature, such as between about 300° F. to about 400° F. A variety of control techniques can also be utilized to control the temperature of each dryer section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.