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| Study on the Application of Glyoxal Polyacrylamide in Bamboo Pulp-containing Tissue Paper |
| Received:February 24, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.06.018 |
| Key Words:GPAM bamboo pulp tissue paper tensile strength drainability |
| Author Name | Affiliation | Postcode | | LUO Shiyu* | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100 | 272100 | | JU Yanbin | Guangxi Sun Paper Industry, Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 | | JIA Rongzhi | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100
Guangxi Sun Paper Industry, Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 | | LI Na | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100 | 272100 | | LIU Zehua | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100 | 272100 | | CAI Guorong* | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100
Guangxi Sun Paper Industry, Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 | | CAO Yanjun | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100 | 272100 | | MA Yunyan | Shandong Sun Paper Industry Joint Stock Co., Ltd., Jining, Shandong Province,272100 | 272100 | | WU Tianhua | Guangxi Sun Paper Industry, Beihai, Guangxi Zhuang Autonomous Region, 536000 | 536000 |
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| Abstract:In this study， the synergistic effects of glycolaldehyde polyacrylamide （GPAM） and starch-based biopolymers in bamboo pulp-containing tissue paper were systematically evaluated through two parts of laboratory tests and production practices. The results of laboratory tests showed that adding GPAM significantly improved the drainability of pulp at both 4∶6 and 9∶11 of bamboo pulp to hardwood pulp mass ratios， corresponding to an increase of 75 and 62 mL in 10 seconds water filtration of the pulp， and the optimal GPAM dosages were 0.045% and 0.075%， respectively. The results of production practices showed that when 0.045% GPAM was added in soft facial paper with the grammage of 14.0 g/m²， the dry tensile index and wet tensile strength increased by 1.5% and 4.2%， respectively， the vacuum degree decreased by 1.81 kPa， the machine speed increased by 50 m/min， the proportion of bamboo pulp decreased from 40% to 37%， and the cost per ton of paper was reduced by approximately 40 yuan. When 0.075% GPAM was added in the hand towel paper with the grammage of 32.0 g/m²， the dry tensile index and wet tensile strength increased by 2.5% and 0.8%， respectively， the proportion of bamboo pulp decreased by 8 percentage points， the vacuum degree decreased by 2.33 kPa， the machine speed increased by 10 m/min， and the cost per ton of paper was reduced by approximately 60 yuan. |
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