Comparison of various pulping processes for producing pulp from vine shoots

摘要: Abstract The results of characterization for four different vine shoot varieties, grown using two methods, revealed no significant differences in composition among varieties or between growing methods. holocellulose content shoots (67.14%) is lower than those other non-wood raw materials (e.g. wheat straw, sunflower stalks, cotton etc.), but similar to pine and higher olive trimmings. On the hand, their lignin (20.27%) eucalyptus materials. Also, contents cold-water, hot-water 1% soda solubles, ethanol–benzene extractables, are eucalyptus. Soda, kraft, ethanol ethylene–glycol pulping processes have low yields (29–47%) relative applied trimmings straw. Kraft pulp that exhibiting best properties, including a α-cellulose (73.74%) from straw trimmings, (17.18%). kraft provides paper with highest breaking length, burst index tear (viz. 1316 m, 1.63 kN/g 1.59 mN m2/g, respectively); these values, which intermediate seeds, can be substantially improved by appropriate refining pulp.