| Abstract:In this paper, sinocalamus affinis was used as raw material. Bamboo pulp was prepared with the sulfate method to measure the content of different chemical components. The result was studied, including changes in the lignin content, holocellulose content, and pentose content to reveal its cooking process. The results showed that the content of cellulose, lignin and hemicellulose were 44.35%, 25.88% and 28.27%, Respectively indicating that it was an excellent non-wood papermaking fiber raw material. The results showed that the delignification process of bamboo kraft cooking can be divided into three stages: the stage of massive delignification、the supplementary delignification stage、the residual delignification stage. In the stage of massive delignification, the delignification rate reached 46.40%, the carbohydrate degradation rate reached 28.11% and the dissolution rate of pentose reached 48.63%. In the supplementary delignification stage, the delignification rate reached 89.72%, the carbohydrate degradation rate was 38.71% and the pentose dissolution rate was 97.93%. In the residual delignification stage, the rate of delignification was 96.14%, the carbohydrate degradation rate was 38.82%, and the dissolution of pentose was 94.39%. |