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The oxygen delignifcation of unbleached kraft pulps produced from industrial hemp stalks and hemp 'wood' was studied, as well as the susceptibility of such pulps to bleaching. Hemp stalk and wood pulp showed comparable susceptibility to delignifcation with oxygen in alkaline media and good bleachability in the elemental chlorine free (ECF) and the total chlorine free (TCF) bleaching processes. Good bleachability was also shown by hemp bast fbre pulp. The fnal yield and intrinsic viscosity of bleached pulps produced from industrial hemp were also determined and compared with the properties of pulps produced from tree wood. It was found that the fnal yield of bleached hemp stalk pulp was higher than that of conventional bleached birch- and pine papermaking pulps. However, the retention of high intrinsic viscosity in hemp pulps can be achieved by varying the conditions of the oxygen delignifcation and bleaching processes.
Słowa kluczowe
Czasopismo
Rocznik
Strony
84--88
Opis fizyczny
Bibliogr. 20 poz.,
Twórcy
autor
autor
- Institute of Papermaking and Printing, Technical University of Lodz ul. Wólczańska 223, 90-924 Łódź, Poland
Bibliografia
- 1. Kane M.: ‘Getting a problem fiber? Hemp is at hand’, PPI, Vol. 42(4) 2000, pp. 33-35.
- 2. Fisher S.: ‘Hanf-Zellstoff – Rohstoff fur die Papierindustrie’, Wochenblatt fur die Papierfabrikation, Vol. 123(19) 1995, p. 878.
- 3. Leponiemi A.: ‘Non-wood pulping possibilities – a challenge for the chemical pulping industry’, Appita J., Vol. 61(3) 2008, p. 235.
- 4. Kozłowski R., Mańkowski J., Kubacki A., Kołodziej J.: ‘The effective production technology of decorticated hemp fbre-an alternative raw material for the pulp and paper industry’, Proc. of 15th International Papermaking Conference PROGRESS’05, 28-30 Wrocław, Poland.
- 5. Sadelnik N.: ‘Properties of hemp fbre cottonised by biological modifcation of hemp hackling noils’, Fibres &Textiles in Eastern Europe, Vol. 12, No. 1(45) 2004, pp. 58-60.
- 6. Cierpucha W., Kozłowski R., Mańkowski J., Waśko J., Makowski T.: ‘Applicability of fax and hemp as a raw materials for production of cotton-like fbres and blended yarns in Poland’, Fibres &Textiles in Eastern Europe, Vol.12, No. 3(47) 2004, pp. 13-18.
- 7. Grabowska L.: ‘Polish varieties of fbrous hemp present in COBOR register (in Polish)’, Flex and hemp No. 1 (2004).
- 8. Johnson P.: ‘Industrial hemp: A critical review of claimed potentials for Cannabis sativa’, Tappi J. Vol. 82(7) 1999, pp.113-123.
- 9. Correia F., Roy D.N., Goel K.: ‘Pulping of Canadian industrial hemp (Cannabis Sativa L.)’, Pulp Paper Can. Vol. 99(9) 1998, pp. 39-41.
- 10. Correia F., Roy D.N., Chute W.: ‘Hemp chemical pulp: A reinforcing fibre for hardwood kraft pulps’, Pulp Paper Can., Vol. 104(5) 2003, pp. 51-54.
- 11. Correia F., Roy D.N., Goel K.: ‘Chemistry and delignifcation kinetics of Canadian industrial hemp (Cannabis sativa L.)’, JWCT, Vol. 21(2) 2001, pp. 97-111.
- 12. De Groot B., Van der Kolk J.C., Van Dam J.E.G, Van T’ Riet K.: ‘Papermaking characteristics of alkaline hemp-woody-core pulps’, Tappi J., Vol. 82(7) 1999, pp. 107-112.
- 13. Lisson S. N.: ‘Studies of fbre hemp and fex pulps as a feedstock for Australian newsprint production’. Appita J., Vol. 54(5) 2001, pp. 449-456.
- 14. Stupińska H. i inni: ‘Sposób wytwarzania papierniczej masy bielonej z łodyg roślin łykodajnych’, Patent PL 198456 (2008).
- 15. Stupińska H. i inni: ‘Sposób wytwarzania długowłóknistej bielonej masy celulozowej z włókna roślin łykodajnych’, Patent PL 197602 (2008).
- 16. Amini B., Webster, J.: ‘On-site peracids: Tool for bleaching strategies to meet the cluster rule and considerations on selecting among them’, Tappi J. Vol. 78(10) 1995, p. 121.1995, p. 121.
- 17. Danielewicz D., Surma-Ślusarska B.:‘Processing of industrial hemp into papermaking pulps intended for bleaching’, manuscript approved for publication in Fibres &Textiles in Eastern Europe, Vol. 18 No. 6(83) 2010.
- 18. Danielewicz D., Surma-Ślusarska B.: ‘Extended oxygen delignifcation of pine kraft pulp’, Fibres &Textiles in Eastern Europe, Vol. 14, No. 4(58) 2006, p. 95-100.
- 19. Danielewicz D., Surma-Ślusarska B.: ‘Extended oxygen delignifcation of birch kraft pulp’ Fibres &Textiles in Eastern Europe, vol. 15, No. 1(60) 2007, pp. 95-100.
- 20. Danielewicz D., Surma-Ślusarska B.: ‘Oxygen delignification of high-kappa number pine kraft pulp’, Fibres &Textiles in Eastern Europe, Vol. 14, No. 2 (61) 2006, pp. 89-93.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0015-0016