| 闫瑛,田泱源,孙志涛,李锦,尚峰,田晓辉,李华雨,王艳青.造纸法加热不燃烧烟草薄片浆料级分分布研究及其对产品性能的影响[J].中国造纸,2025,44(7):154-163 |
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| 造纸法加热不燃烧烟草薄片浆料级分分布研究及其对产品性能的影响 |
| Pulp Screening Distribution and Its Effects on Performance of Heat-not-burn Papermaking Processed Reconstituted Tobacco |
| 收稿日期：2025-01-14 修订日期：2025-02-24 |
| DOI：10.11980/j.issn.0254-508X.2025.07.018 |
| 关键词: 加热卷烟 烟草薄片 浆料筛分 物理性能 |
| Key Words:heat-not-burn tobacco reconstituted tobacco pulp screening physical properties |
| 基金项目:河南中烟工业有限责任公司A类科技项目（AW2024022）。 |
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| 摘要:本研究分析了烟草原料特性，研究了适宜的浆料筛分分布检测方法，考察了经过不同功率打浆后生产线不同取样点的浆料筛分后各级分占比，探究了浆料级分占比与手抄片关键物理性能之间的关系。结果表明，烟梗和烟末纤维细胞含量少，且纤维较短、杂细胞多，烟草混合浆非单一纤维形态；适宜的浆料筛分分布检测方法为：筛板孔径1 180、830、600、300、75 μm，筛分时间10~20 min，浆料取样量10~16 g，可采用离心脱水代替烘干方式处理筛分后各级分浆料；浆料粒径[1 180, +∞）μm占比呈现“第1取样点>第2取样点>第3取样点”的规律；浆料粒径[75, 300）μm 占比呈现出“第3取样点>第2取样点>第1取样点”的规律；随着磨机功率降低，浆料粒径[1 180, +∞）μm与粒径[830, 1 180）μm占比增加；当第1取样点浆料粒径[1 180, +∞）μm占比为36.1%时，手抄片松厚度提高了14.2%、吸液高度提高了27.6%、抗张指数降低了35.6%。 |
| Abstract:This study analyzed the characteristics of tobacco raw materials， investigated suitable detection methods for the screening distribution of pulp slurry， examined the screening distribution of the pulp slurry at different sampling points along the production line after beating with different power， and explored the relationships between screening distribution indicators of pulp slurry and the key physical properties of handsheets. The results indicated that tobacco stems and tobacco dust contained fewer fibrous cells， with shorter fibers and more non-fibrous cells， suggesting that the mixed tobacco pulp did not consist of a single fiber morphology. The suitable detection method for screening distribution of pulp slurry was as follows： using sieve plates with aperture of 1 180， 830， 600， 300， and 75 μm， with a screening time of 10~20 minutes and a pulp sampling amount of 10~16 grams. Centrifugal dewatering could be used instead of drying to process the pulp fractions. The proportion of the pulp particle size ［1 180， +∞）μm exhibited a pattern of “Sampling Point 1 > Sampling Point 2 > Sampling Point 3，” while the proportion of the pulp particle size ［75， 300）μm showed a pattern of "Sampling Point 3 > Sampling Point 2 > Sampling Point 1.“ As the mill power decreased， the proportions of the pulp particle sizes ［1 180， +∞）μm and ［830， 1 180）μm increased. When the proportions of the pulp particle size ［1 180， +∞）μm at the first sampling point was 36.1%， the bulkiness of the handsheets increased by 14.2%， the liquid absorption height increased by 27.6%， and the tensile index decreased by 35.6%. |
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