Size Characterization of Fibres and Fines in Hardwood Kraft Pulps

✍ Scribed by Paulo J. Ferreira; Sandra Matos; Margarida M. Figueiredo

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 83 KB
• Volume: 16
• Category: Article
• ISSN: 0934-0866
• DOI: 10.1002/(sici)1521-4117(199905)16:1<20::aid-ppsc20>3.0.co;2-m

✦ Synopsis

The aim of this work was the characterisation of the primary components of papermaking pulp, i.e. ®bres and ®nes. Although it included the measurement of ®bre dimensions, this work was mainly devoted to sizing ®nes, applying methods other than those frequently used for pulp quality control. Therefore, in addition to the Kajaani method, image analysis, laser diffraction and the electrical sensing zone method were also utilised. A chemical pulp was tested before and after laboratory re®ning. Finally, an evaluation was made of the handsheet strength and optical properties prepared with these pulps, with and without ®nes, in order to study the effect of the beating process and of the ®nes.