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摘要
In this paper，the bast fiber of industrial hemp was used as raw material. The chemical composition and fiber morphology were analyzed. The results showed that the industrial hemp fiber had a high content of nitrate-ethanol cellulose，reaching 70.6%，while the lignin content was relatively low，only 9.6%. The average length of the fiber was 20.47 mm，the average width of the fiber was 22.50 μm，and the length and width ratio was 909.78，which was a high quality raw material for paper making. Then three different methods of soda-anthraquinone （NaOH-AQ），sulfate （KP） and alkaline subsodium-anthraquinone （AS-AQ） were used to prepare the pulp. Compared with commercial pulp，AS-AQ pulp had obvious advantages over NaOH-AQ pulp and KP pulp in terms of pulp yield，brightness，intrinsic viscosity and paper physical strength performance. So that AS-AQ was an ideal method for hemp bast fiber. ? 2023 China Technical Association of Paper Industry.
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