Title:
可視・近赤外分光測定法により化学パルプのカッパー価を測定する方法
Document Type and Number:
Japanese Patent JP2008532021
Kind Code:
A
Abstract:
A method for the determination of a cellulosic-fibre property, namely, residual lignin content or Kappa number of chemical pulp, with the aid of a spectroscopic technique obtained over a range covering the visible and the near-infrared regions of the electromagnetic spectrum, comprising exposing the wet fibres to a light source covering a range in the visible region of 350 nm to 750 nm and a range in the near-infrared of 1100 nm to 2400 nm, reflecting light from the wet fibres, establishing a spectrum, comparing the spectrum with a known spectrum of the property and evaluating the comparison; the method has particular utility in a pulp manufacture line; an apparatus is described for carrying out the method.
Inventors:
Torun, Tan, Pee.
Betts, Steven, Pee., A.
Leclerc, Dennis, F.
Betts, Steven, Pee., A.
Leclerc, Dennis, F.
Application Number:
JP2007557298A
Publication Date:
August 14, 2008
Filing Date:
February 28, 2006
Export Citation:
Assignee:
FP Innovations
International Classes:
G01N21/35; D21C3/00; D21H11/00
Domestic Patent References:
| JPH10500215A | 1998-01-06 | |||
| JPH11124783A | 1999-05-11 | |||
| JP2004020705A | 2004-01-22 |
Foreign References:
| US6069688A | 2000-05-30 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Takamatsu Takefu
Katsunori Ando
Hajime Asamura
Takamatsu Takefu
Katsunori Ando