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| Study on the Kraft Chemical Pulping of Cinnamomum Cassia Presl and Its Extractives |
| Received:February 23, 2025 Revised:May 19, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.09.011 |
| Key Words:Cinnamomum cassia Presl kraft pulping performance fiber morphology chemical composition extractives |
| Author Name | Affiliation | Postcode | | CAO Yanjun* | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province, 272100 | 272100 | | LU Qinghui* | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province, 272100
Guangxi Sun Paper Industry Co., Ltd., Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 | | LI Zhi | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province, 272100
Guangxi Sun Paper Industry Co., Ltd., Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 | | DAI Zhongying | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province, 272100
Guangxi Sun Paper Industry Co., Ltd., Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 |
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| Abstract:In order to evaluate the potential of Cinnamomum cassia Presl for kraft pulping applications， this study compared its fiber morphology， chemical composition， and kraft pulping performance with two commonly used fiber raw materials： Eucalyptus from Guangxi and Acacia from Vietnam. The results showed that the fiber length of Cinnamomum cassia Presl was 0.956 mm， which was significantly higher than that of Vietnam Acacia and Guangxi Eucalyptus， and the proportion in the long fiber area was also higher. The content of holocellulose was 75.53%， lower than both Vietnam Acacia and Guangxi Eucalyptus. The viscosity of the kraft pulp after cooking was 1 061 mL/g， with the yield of fine pulp was 47.59%， and the tensile index was 88.3 N·m/g. The benzene-ethanol extractives (3.18%) and dichloromethane extractives (2.29%) of Cinnamomum cassia Presl were relatively high compared to conventional raw materials. The extractives were predominantly composed of low-molecular-weight saturated fatty acids. Mill trial monitoring using resin sticks indicated resin deposition occurred in the production system after adding Cinnamomum cassia Presl. |
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