عنوان مقاله [English]
In this research, effect of Using Hornbeam and Beech Branch Woods in Admixture with Birch Stem Wood on Their CMP Pulp Properties. Using percentage of branch woods, with 20% constant content for Birch stem wood, were 0, 16, 40, 56 and 80 in final mixture of hardwoods. The Results indicated that cooking time, to reach 85% yield and under same cooking condition, and also refining quantity, to reach 300 ml constant CSF freeness, were decreased with increasing portion branch woods (P<0.01). Moreover, despite a little decrease (P<0.01) in the optical and mechanical properties of the produced hard sheets by addition of branch wood in the hardwood stems wood, using 40% of branch wood in final mixture of the initial materials for making CMP pulp is recommended.