Method for determination of filler content in paper
US5908535A · kind A · utility
1Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G9/0027
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of determining the filler content of paper, wherein the paper stock is examined prior to delivering the stock to the de-watering section of the paper machine, and wherein the volume concentration of particles in the stock that have a size which is greater than the characteristic size of the filler is determined at varying mechanical working of the pulp, and the amount of filler retained in the paper is predicted from the result of at least two such determinations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.