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| Influence of Different Types of Blades on the Beating Performance of Fibers |
| Received:March 07, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.06.015 |
| Key Words:Valley blades beating fiber morphology paper properties |
| Fund Project:国家重点研发计划项目（2023YFB3813400）。 |
| Author Name | Affiliation | Postcode | | ZHANG Ning | Colloge of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | GAO Qichao | Colloge of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIU Mengru | Colloge of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIU Daoheng | Colloge of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LI Hailong* | Colloge of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:In this study， unbleached kraft softwood pulp was used to explore the effects of Valley blades on the fiber morphology and paper properties before and after beating. The results showed that different types of blades had a great effect on the beating performance of fiber. Under the same beating conditions， with the increase of bar width， the rubbing effect of blade on fibers was enhanced， which aggravated the change of fiber morphology， and the phenomenon of fiber fibrillation was more obvious， which accelerated the improvement of beating degree and water retention value of pulpfibers. When the pulp consistency increased， the influence of blade type on the beating effect was weakened. Under the same pulp consistency and similar beating degree， paper properties of different types of blades exhibited minor variations. Paper properties of the 2# blade with 2 mm bar width were optimal when the pulp consistency was 2.0%. When the beating degree was 56°SR， the tensile index， burst index and tearing index were 104 N·m/g， 6.93 kPa·m²/g and 11.5 mN·m²/g， respectively. |
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