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Items for "chromophores"

The nature of chromophores in high-extractives mechanical pulps: Western red cedar (Thuja plicata Donn) chemithermomechanical pulp (CTMP)

The utilization of western red cedar mechanical pulp is limited by low brightness caused by a high chromophore content...

Keywords: borohydride, brightness, chemithermomechanical pulp (CTMP), chromophores, color, coniferaldehyde, DRIFT, DRUV, extractives, peroxide, quinones, western red cedar

07/2006 | Holzforschung, Walter de Gruyter
The fate of phosphorus in the bleaching of spruce TMP with the new bleaching agent – THPS

Tetrakis(hydroxymethyl)phosphonium sulfate (THPS) is a newly discovered, phosphorus-based bleaching agent that has been successfully tested in a pulp mill trial...

Keywords: bleaching, brightness, chromophores, coniferaldehyde, lignins, mechanical pulps, phosphonium compounds: phosphorus, tetrakis(hydroxymethyl) phosphonium sulfate, thermomechanical pulps

07/2008 | Holzforschung, Walter de Gruyter
Isolation and identification of residual chromophores from aged bleached pulp samples

Three bleached and subsequently aged cellulosic pulps have been analysed for their chromophore content according to the chromophore release and identification (CRI) method...

Keywords: aging, bleached pulp, bleaching, cellulose, chromophores, CRI method, hydroxyquinones

11/2007 | Holzforschung, Walter de Gruyter