UTILIZATION OF A CHEMICAL-MECHANICAL PULP WITH IMPROVED PROPERTIES FROM POPLAR WOOD IN THE COMPOSITION OF PACKING PAPERS

作者：Boeva Spiridonova R^*; Petkova E; Georgieva N; Yotova L; Spiridonov I

来源：BioResources, 2007, 2(1): 34-40.

• Cellulose
• Chemical-mechanical pulp
• Paper
• Production
• Utilization
• Poplar wood
• Phanerochaete chrysosporium

The aim of the present work is to obtain a chemical-mechanical pulp (CMP) from poplar wood with improved properties, to be used in packing papers in place of more expensive softwood or hardwood pulp. For improving the CMP quality indicators, a preliminary treatment of the pulp has been carried out with a mixture of oxidizing enzymes produced from Phanerochaete chrysosporium, including lignin peroxidase, manganese peroxidase, and laccase. The two types of fiber materials obtained were double-stage bleached and then ground to 30 degrees SR. It was found that preliminary enzyme treatment yielded CMP with improved physical, mechanical, and optical properties. The enzyme-pretreated CMP also refined faster, thus reducing the electricity consumption. Bleached CMP from poplar wood, obtained after preliminary enzyme treatment, could be successfully utilized at levels up to 40% in the composition of various packaging papers.

• 出版日期2007-2
• 单位北京化工大学