In the research Pinus koraiensis and Lorix gmelini were used as raw materials,with the analysis of L9 (34) experimental design and pulping mechanism, the optimal pulping technological parameters and corresponding AS-AQ pulp properties were obtained. The results showed that the ylelds of Pinus koraiensis and Larix gmelini AS-AQ pulp were much higher than that of corresponding kraft and has an environmental advantage over kraft. AS-AQ pulping Produces pulps with strength properties comparable to kraft.
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