An Investigation and Comparison of the Properties of Papers Obtained from the CMP Pulp of the Imported Aspen and the CMP Pulp of Beech and Horn Beam

In this study, the woods of the imported Aspen, Beech and Horn Beam were randomly selected from the Mazandaran Wood and Paper industries (MWPI) from which standard chips were prepared and then the pure CMP pulp by 85% yield was produced. Then the biometrical properties of fiber, the chemical components of wood flour and CMP pulp, the decreased percentage of the chemical components and hand-sheet properties were measured and analyzed statistically. The results showed that the imported Aspen has shorter fiber length, more fiber diameter and lumen and smaller cell wall thickness than the Beech and Horn Beam .The imported Aspen wood has the least Klason lignin and the most Holocellulose from the chemical component point of view. Also, the hand-sheet properties of the CMP pulp of the samples under the study indicated that the tear strength and burst strength of papers obtained from the Beech and Horn Beam were smaller than the imported Aspen.