NZJFor Home Search Join Author instructions NZIF website NZJFor Home NZJFor

    ABSTRACT

New Zealand Journal of Forestry (1974) 19(2): 286–289
©New Zealand Institute of Forestry

Research article
Soda pulping of New Zealand beech

S.R. Corson



Results of a project which examined the feasibility of pulping the New Zealand beech species by the soda process indicate that a good quality pulp suitable for the manufacture of medium paper grades can be obtained. A low pressure impregnation stage was required to penetrate the wood satisfactorily and the consumption rate of soda was about 8% based on oven-dried wood.

Pulps were evaluated in their unscreened state and physical properties of a representative pulp are: 140 Canadian standard freeness, 3 470 m breaking length, 4.5 tear index, 1.1 burst index, 1.96 bulk, 28.7 brightness and 99.5 opacity.


(no keywords)


Issues > 19(2) > Abstract
Cover

Get PDF
Download article as 988 KB PDF file

Free download.

(You can read PDF files with the free Adobe Acrobat Reader)