PRODUCTION OF NEW GRADES OF MECHANICAL PULP

Authors
Citation
Kn. Law et Jl. Valade, PRODUCTION OF NEW GRADES OF MECHANICAL PULP, Pulp & paper Canada, 95(4), 1994, pp. 23-29
Citations number
8
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
ISSN journal
03164004
Volume
95
Issue
4
Year of publication
1994
Pages
23 - 29
Database
ISI
SICI code
0316-4004(1994)95:4<23:PONGOM>2.0.ZU;2-M
Abstract
Atmospheric co-refining, without chemical addition, of three types of wastepaper (old newspaper, telephone directory and xerographic ledger) with a softwood chemithermo-mechanical pulp was conducted using a Sun ds Defibrator (D300 refiner to produce a new grade of mechanical pulp for the manufacture of newsprint without the use of expensive deinking equipments and chemicals. The results indicated that up to about 50% of wastepaper may be incorporated into a CTMP furnish without a signif icant loss of papermaking potential.