不同溶剂预处理对烟梗打浆抄造及评吸性能的影响

Effects of Tobacco Stem Treated with Different Solvention Its Beating Sheet Forming and Smoking Performance

关键词:  烟梗  木素  打浆抄造性能  评吸性能

Key Words:tobacco stems  lignin  beating and papermaking performance  smoking performance

摘要:以热水抽提、乙醇水溶液和碱性离子液体1，3-二甲基咪唑磷酸二甲酯（［MMIM］DMP）为溶剂，对烟梗进行预处理，研究不同溶剂对烟梗中木素的去除效果及溶剂处理后打浆抄造性能和再造烟叶评吸性能的变化。结果表明，碱性离子液体对烟梗中木素的去除率最高，约为热水抽提的5倍，远大于乙醇水溶液对木素的去除率；相对于热水抽提和乙醇水溶液处理，经碱性离子液体处理后的烟梗打浆后纤维的分散程度较好，打浆性能明显提升，抗张强度提高，松厚度和透气度也得到了进一步改善；碱性离子液体脱除烟梗中大量木素后，使各烟气指标的含量和感官质量指标的分数得到了优化，评吸性能明显改善，从而提高了烟草废弃物的利用率，提升了再造烟叶产品品质。

Abstract:This paper studied beating performance, sheet forming performance of tobacco stem(a kind of reconstituted tobacco raw material)which was extracted with water, ethanol water solution and alkaline ionic liquid ［MMIM］DMP and the smoking performance of the reconstituted tobacco sheet. The results showed that the removal rate of lignin in tobacco stems extracted by ［MMIM］DMP was the highest, which was about 5 times of that extracted by water and even much higher than ethanol aqueous solution. Compared with the water and ethanol aqueous solution, the beating and sheet forming performances of tobacco stem extracted with ［MMIM］DMP were upgraded significantly the tensile strength and bulk as well as permeability of the treated sheet were improved. After the massive delignification in tobacco stem extracted by ［MMIM］DMP, the contents of the smoke compositions and the scores of the sensory quality index were optimized, and the smoking performance was improved obviously, which improved the quality of the reconstituted tobacco product.