WOOD BASIC DENSITY EFFECT OF Eucalyptus grandis x Eucalyptus urophylla CLONES ON BLEACHED PULP QUALITY

Authors

  • Sheila Rodrigues dos Santos UFSM
  • Cláudio Angeli Sansígolo

DOI:

https://doi.org/10.5902/198050981935

Keywords:

Basic density, Kraft pulping, clones, bleaching pulp properties.

Abstract

The study analyzed the wood basic density effect in two Eucalyptus grandis x Eucalyptus urophylla hybrid clones (440 kg/m3 e 508 kg/m3) on bleached pulp quality (fiber dimensions and physical-mechanical properties). The woods performance on pulping, bleaching and beating results were analyzed. The Kraft pulping was carried out in forced circulation digester in order to obtain 17±1 kappa number targets. The pulps were bleached to 90±1 using delignification oxygen and D0EOPD1 bleaching sequence. Bleached pulp of low basic density clone showed, significantly, lowest revolutions number in the PFI mill to reach tensile index of 70 N.m/g, low Schopper Riegler degree and generated sheets with higher values to bulk and opacity. These characteristics and properties allow concluding that bleached pulp of low basic density clone was the most indicated to produce printing and writing sheets. The bleached pulp of high basic density clone showed higher values of bulk and capillarity Klemm and lower water retention value when analyzed without beating. The bleached pulp of high basic density clone showed more favorable characteristics to the production of tissue papers.

Downloads

Download data is not yet available.

References

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS - ABNT. Normas técnicas. Rio de Janeiro, 1999. Pasta Celulósica - Refinação em Laboratório - Método PFI, Norma NBR 1435.

BRAATEN, K. R.; MOLTEBERG, D. A mathematical method for determining fiber wall thickness and fiber width. Tappi Journal, v. 3, n. 2, p. 9-12, 2004.

BRITT, K. W.; UNBEHEND, J. E. New methods for monitoring retention. TAPPI, v.59, n.2, p.67-70, 1976.

COTTERILL, P.; MACRAE, S. Improving Eucalyptus pulp and paper quality using genetic selection and good organization. Tappi Journal, v. 80, n. 6, p. 82-89, 1997.

DINUS, R. J.; WELT, T. Tailoring fiber properties to paper manufacture: recent developments. Tappi Journal, v. 80, n. 4, p. 127-139, 1997.

FOELKEL, C. E. B.; BRASIL, M. A. M.; BARRICHELO, L. E. G. Métodos de determinação da densidade básica de cavacos para coníferas e folhosas. IPEF, n. 2/3, p. 65-74, 1971.

FOELKEL, C. E. B.; MORA, E.; MENOCHELLI, S. Densidade básica: sua verdadeira utilidade como índice de qualidade da madeira de eucalipto para produção de celulose. O Papel, p. 35-40, maio,1992.

FOELKEL, C. E. B. Qualidade da madeira de eucalipto para atendimento das exigências do mercado de celulose e papel. IUFRO, v.1, p.1, 1997.

FONSECA, S. M., OLIVEIRA, R. C., SILVEIRA, P. N. Seleção da árvore industrial: procedimentos, riscos, custos e benefícios. Revista Árvore, v. 20, n. 1, p.69-85, 1996.

LEVLIN, J. E.; SÖDERHJELM, L. Pulp and paper testing. Atlanta: Tappi Press, 1999. v.17, 288 p. 1999. (Papermaking Science and Technology Series).

QUEIROZ, S. C. S.; GOMIDE, J. L.; COLODETTE, J. L.; OLIVEIRA, R. C. Influência da densidade básica da madeira na qualidade da polpa Kraft de clones híbridos de Eucalyptus grandis W. Hill ex Maiden x Eucalyptus urophylla S. T. Blake. Revista Árvore, v. 28, n. 6, p.901-909, 2004.

RUDIE, A. W. Wood and how it relates to paper products. Tappi Journal, v. 81, n. 5, p. 223-228, 1998.

SCANDINAVIAN PULP, PAPER AND BOARD - SCAN. Normas técnicas. Stockholm, 1980.

Viscosity of Cellulose in Cupriethylenediamine Solution (CED), Norma SCAN C 15:62. Drainability by the Schopper-Riegler Method, Norma SCAN M 3:65. Capillary Rise of Water by the Klemm Method, Norma SCAN P 13:64.

SANTOS, S. R.. Influência da qualidade da madeira de híbridos de Eucalyptus grandis x Eucalyptus urophylla e do processo Kraft de polpação na qualidade da polpa branqueada, 2005. 172f. Dissertação (Mestrado em Recursos Florestais) - Universidade de São Paulo, Piracicaba, 2005.

SILVA JÚNIOR, F. G.; VALLE, C. F.; MUNER, J. C. G. Programa de qualidade da madeira da Votorantim Celulose e Papel - VCP. O Papel, v. 57, n. 1, p. 35 - 43, 1996.

TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY - TAPPI. . Normas técnicas. Atlanta, 1999. Preparation of Wood for Chemical Analysis, Norma TAPPI T 12 wd-82. Acid-Insoluble Lignin in Wood and Pulp, Norma TAPPI T 222 om-98. Kappa Number of Pulp, Norma TAPPI T 236 cm-85. Analysis of Soda and Sulfate Black Liquor, Norma TAPPI T 625 cm-85. Solids Content of Black Liquor, Norma TAPPI T 650 om 89. Standard Conditioning and Atmospheres for Paper, Board, Pulp Handsheets, and Related Products, Norma TAPPI T 402 om-03. Physical Testing of Pulp Handsheets, Norma TAPPI T 220 sp-96. Tensile Breaking Properties of Paper and Paperboard, Norma TAPPI T 494 om-96. Bursting Strength of Paper, Norma TAPPI T 403 om-97. Internal Tearing Resistance of Paper (Elmendorf-Type Method), Norma TAPPI T 414 om-98. Air Resistance of Paper (Gurley Method), Norma TAPPI T 460 om-96. Opacity of Paper, Norma TAPPI T 465 om-96.

TREPANIER, R. J. Automatic fiber length and shape measurement by image analysis. Tappi Journal, v. 81, n. 6, p. 152-154, 1998.

VASCONCELOS DIAS, R.L.; CLAUDIO-DA-SILVA JÚNIOR, E. A influência da densidade básica da madeira de híbridos de Eucalyptus grandis em suas características químicas, e propriedades de polpação e do papel. In. CONGRESSO ANUAL DA ABTCP : Semana do Papel, 18., São Paulo, 1985. Anais... São Paulo, 1985. p.31-55.

WHITEMAN, P. H., CAMERON, J. N., FARRINGTON, A. Breeding trees for improved pulp and paper production: review. Appita, v. 49, n. 1, p. 50, 1996.

WRIGHT, P. J.; WALLIS, A. F. A. Rapid determination of cellulose in plantation eucalypt woods to predict Kraft pulp yields. Tappi Journal, v. 81, n. 2, p. 126-130, 1998.

Published

2007-03-30

How to Cite

Santos, S. R. dos, & Sansígolo, C. A. (2007). WOOD BASIC DENSITY EFFECT OF Eucalyptus grandis x Eucalyptus urophylla CLONES ON BLEACHED PULP QUALITY. Ciência Florestal, 17(1), 53–63. https://doi.org/10.5902/198050981935

Issue

Section

Articles

Similar Articles

You may also start an advanced similarity search for this article.