烟支规格对卷烟物理、烟气、燃吸特性及感官质量的影响

为探究烟支规格对卷烟质量的影响，在烟丝原料、填充密度、卷烟纸透气度、接装纸规格、丝束材料以及滤棒吸阻条件相同的情况下卷制4种规格卷烟烟支规格（烟支圆周×长度）:常规（24.3 mm×84 mm）、22 mm卷烟（22 mm×84 mm）、中支（20 mm×89 mm）、细支（16.9 mm×97 mm）]，检测其物理指标、烟气指标、烟气致香成分含量和感官质量。结果表明:①随着烟支规格由常规逐渐变化到细支，单支含丝量减小，烟支吸阻增加，烟支硬度下降，烟丝段通风率增加超过一倍，其中烟丝段吸阻与烟支圆周平方的倒数呈良好的线性关系。②烟支规格由常规到细支，抽吸口数下降了0.92口/支，烟气焦油、烟碱、CO释放量整体呈现减小的趋势；燃吸比率和单口抽吸耗丝量呈现先增加后减小的趋势，中支卷烟的燃吸比率和单口抽吸耗丝量最大，分别为29.37%和19.98 mg/口，中支卷烟单口烟气焦油释放量最大。③中支卷烟单支和单口烟气粒相物致香成分总量均为最高；烟支由常规到细支，主流烟气致香成分中杂环类化合物含量呈现先增加后减少的趋势，单口烟气致香成分含量中3-甲基-2-环戊烯-1-酮、3-乙烯基吡啶、苯酚含量呈现增加的趋势。④中支卷烟总体感官质量评价得分较高，细支卷烟总体感官质量评价得分最低，香气量、烟气浓度、刺激性感官评价得分均随着烟支圆周的减小呈现降低的趋势。 

Effects of cigarette size on its physical indexes,smoke constituent indexes,puffing characteristics and sensory quality

In order to explore the effects of cigarette size on the quality of cigarettes, cigarettes of four sizes (circumference × length: conventional cigarette 24.3 mm × 84 mm, 22 mm cigarette 22 mm × 84 mm, slim cigarette 20 mm × 89 mm, super slim cigarette 16.9 mm × 97 mm) were made under the same cut tobacco, filling density, air permeability of cigarette paper, tipping paper specification, tow material and draw resistance of filter rod. After the evaluation of physical indexes, smoke indexes, aroma component contents and sensory quality, the results showed that: 1) When cigarette size gradually varied from conventional to super slim, the cut tobacco content in single cigarette decreased, cigarette draw resistance increased, cigarette hardness decreased, and the ventilation rate of tobacco filler more than doubled. There was a good linear relationship between the draw resistance of tobacco filler and the reciprocal of the cigarette circumference square. 2) When the cigarette size varied from conventional to super slim, the puff number decreased by 0.92 puff/cig. The releases of tar, nicotine and CO in mainstream cigarette smoke presented an overall decreasing trend. The puffing ratio and the tobacco consumption of a single puff increased first and then decreased, those of slim cigarette were the highest, which were 29.37% and 19.98 mg/puff respectively. In addition, the tar release of a single puff from the slim cigarette was the highest. 3) The particulate aroma components of a single puff and their total amount from the slim cigarettes were the highest. When cigarette size varied from conventional to super slim, the contents of heterocyclic compounds in mainstream smoke increased first and then decreased, and the contents of 3-methyl-2-cyclopenten-1-one, 3-vinylpyridine and phenol in a single puff increased significantly. 4) The overall evaluation score of sensory quality of the slim cigarette was the highest, while that of the super slim cigarette was the lowest. As cigarette circumference decreased, the evaluation scores of aroma component contents, smoke concentration and smoke irritancy all reduced.