摘要
[Objective] This study aimed to investigate the effects of cigarette auxiliary material parameters on release amounts of tar, CO and free radicals in cigarette mainstream smoke. [Method] The effects of cigarette paper air-permeability, cigarette paper gram weight, filter rod pressure drop and filter tip ventilating strength parameters on the release amounts of tar, CO and free radicals in cigarette mainstream smoke were investigated by single factor experiment and orthogonal experiment. [Result] The cigarette paper air-permeability, filter rod pressure drop and filter tip ventilating strength showed significantly negative correlation with the release amounts of tar, CO and free radicals in cigarette mainstream smoke, to be specific, the cigarette paper air-permeability showed the greatest effect on the release amounts of tar and CO, filter tip ventilating strength showed the greatest effect on the release amounts of gaseous-phase free radicals and particulate-phase free radicals, while cigarette paper gram weight showed relatively slight effect on the release amounts of tar, CO and free radicals. Within the orthogonal experimental range, the optimal program is identified as cigarette paper airpermeability of 70 CU, filter rod pressure drop of 4500 Pa/unit, and filter tip ventilating strength of 60 CU. Compared to the results without optimization, the release amounts of tar, CO and free radicals after optimization were all reduced. [Conclusion] This study laid the foundation for the research of cigarette tar reduction and harm reduction.
[目的]探索卷烟主要辅助材料对主流烟气中焦油(Tar)、CO和自由基释放量的影响。[方法]分别通过单因素试验和正交试验方法考察了卷烟纸透气度、卷烟纸克重、滤棒吸阻和滤嘴通风度参数对卷烟主流烟气中Tar、CO和自由基释放量的影响。[结果]卷烟纸透气度、滤棒吸阻和滤嘴通风度与卷烟主流烟气中Tar、CO和自由基释放量呈明显的负相关关系,其中卷烟纸透气度对Tar和CO释放量影响最大,滤嘴通风度对气相自由基和粒相自由基影响最大,卷烟纸克重对Tar、CO和自由基释放量影响较小;在正交试验范围内,卷烟纸透气度70CU、滤棒吸阻4500Pa/支、滤嘴通风度60CU为最优方案,与优化前对比结果显示,优化后卷烟主流烟气中Tar、CO和自由基释放量均低于优化前。[结论]该研究结果为卷烟减害降焦研究奠定了基础。
基金
Supported by Major Project of China National Tobacco Corporation(110201101034),"Study on Redrying,Alcoholization and Processing Technologies to Reduce the Release Amount of Ammonia in Cigarette Smoke"
General Project of China National Tobacco Corporation(2012-122-25):"Integrated Study on Systematical Design and Harm Reduction Technologies of Cigarette Products"
Project of China National Tobacco Corporation(1001200701007):"Study on Selective Harm Reduction Technologies and Product Application"
Project of Chongqing City(06-1-173):"Study on Preparation of Less Harmful Cigarette and Harm Reduction Mechanism"~~
