Title:
METHOD AND APPARATUS FOR MEASURING PAPER WEB FORMATION
Document Type and Number:
WIPO Patent Application WO2002061203
Kind Code:
A3
Abstract:
A system and process for measuring paper formation characteristics in real time is disclosed. The system comprises apparatus used in a papermaking process, and includes a rotating forming fabric (33) having an upper and lower surface. A paper slurry is deposited upon the upper surface of the moving forming fabric (33) to prepare a wet paper web (32). The wet paper web (32) typically moves at a high rate of speed as it rides alongupon the surface of the forming fabric (33). Light is transmitted from a light source (28, 29) to the surface of the wet paper web (32), and then reflected from the surface of the wet paper web (32) to a camera (27). An image is formed corresponding to the pattern of the reflected light, and in some instances data generated from the reflected light may be compared to other values to provide a feedback loop to adjust the parameters of the papermaking process in real time.
Inventors:
ALLEN PETER J
DELZER SCOTT H
BREWSTER LINDSAY M
DELZER SCOTT H
BREWSTER LINDSAY M
Application Number:
PCT/US2002/002401
Publication Date:
January 22, 2004
Filing Date:
January 28, 2002
Export Citation:
Assignee:
KIMBERLY CLARK CO (US)
International Classes:
D21G9/00; G01N33/34; (IPC1-7): D21G9/00
Foreign References:
| EP0681183A2 | 1995-11-08 | |||
| US6129817A | 2000-10-10 | |||
| EP0392693A2 | 1990-10-17 |
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