卷烟表观燃烧性能质量状况分析

为了全面了解卷烟表观燃烧性能质量状况，对近年来代表性规格的卷烟产品进行了燃烧过程外观形貌和落头倾向测试，基于对测试结果数据的挖掘，从产品设计和原辅材料角度对表观燃烧性能进行了分析。结果表明:①所挑选的436个市售卷烟样品总体燃烧锥落头倾向1.58%，其中中支烟落头倾向最低，细支烟最高。烟支硬度大、卷烟纸透气度60 CU、烟丝宽度1.1 mm、横罗纹卷烟纸样品落头倾向均较低。常规烟落头多发于中部靠上位置，细支烟的落头多发于偏下部位置，中支烟和短支烟均在中部靠下位置。②细支烟的包灰颜色最白、裂口率最低、缩灰率最高、燃烧匹配性较好，常规烟包灰颜色最深、裂口率最高、燃烧匹配性最差，中支烟整体较为均衡、缩灰率最低。③横罗纹、高透气度卷烟纸、烟丝宽度小、全叶丝样品的包灰性能相对较好。 

The overall status of combustion cone characteristics of domestic cigarettes

In order to fully understand the overall characteristics of combustion cone of domestic cigarettes in China, the appearance morphology and falling propensity of lit cigarettes' combustion cone with representative specifications in recent years were tested and summarized. Based on the data mining of the test results, the overall combustion performance of lit cigarettes was analyzed from the aspects of product design, and raw and auxiliary materials. The results indicated that: 1) The total combustion cone falling propensity of 436 samples of commercial cigarettes was 1.58%; the propensity of medium-diameter cigarettes was the lowest and that of slim cigarettes was the highest. Of all the samples tested, those with higher hardness and cigarette paper air permeability of 60 CU, cut tobacco width of 1.1 mm and radially pressing mark in cigarette paper had lower combustion cone falling propensities. The combustion cone of conventional king-size cigarettes fell from the upper middle part of the burning rod, that of slim cigarettes fell from the lower part, while those of medium-diameter and short cigarettes fell from the lower middle part. 2) The ash color of slim cigarettes was the brightest with the lowest ash crack rate, the highest ash shrink rate and best combustion compatibility. The ash color of conventional king-size cigarettes was the darkest with the highest ash crack rate and the worst combustion compatibility. With the lowest ash shrink rate, medium-diameter cigarettes were more balanced overall. 3) The samples with radially pressing mark in cigarette paper of higher air permeability and cut tobacco strips of smaller cutting width presented better ash integrity.