低引燃倾向卷烟设计的影响因素

Factors Affecting Design of Low Ignition Propensity Cigarette

为研究低引燃倾向卷烟(LIP卷烟)设计过程中的影响因素,在不改变卷烟原有配方结构的基础上,利用不同的卷烟纸(普通卷烟纸和阻燃带卷烟纸)制备了相应的卷烟样品,并对样品进行了阻燃带扩散率、卷烟全长燃烧比例及主流烟气释放物等方面的测试。结果表明:在其他条件不变的情况下,①扩散率提高0.22 cm/s,LIP卷烟的全长燃烧比例增大60%以上,主流烟气中的焦油、烟碱、CO的释放量分别减小4.0%,6.5%和6.1%;②助燃剂含量提高0.8%,LIP卷烟的全长燃烧比例增大约20%,主流烟气中的焦油、烟碱、CO的释放量分别减小9.3%,7.9%和12.7%;③在助燃剂含量高的情况下,阻燃带宽度/间距对卷烟全长燃烧比例的影响较大,但对卷烟主流烟气释放物的影响不明显。

In order to study the factors affecting the design of low ignition propensity （LIP）cigarette, cigarette samples were made of the same tobacco compositions and wrapped with ordinary cigarette paper or banded cigarette paper, the band diffusivity, full length burn rate and deliveries of mainstream smoke were determined, the results showed that： while keeping other conditions unchanged, 1）the ratio of full length burn of LIP cigarette increased by more than 60%, the deliveries of tar, nicotine and CO decreased by 4.0%, 6.5% and 6.1%, respectively,when the band diffusivity increased by 0.22 cm/s; 2） the ratio of full length burn of LIP cigarette increased by about 20%,the deliveries of tar, nicotine and CO decreased by 9.3%, 7.9% and 12.7%,respectively, when the content of combustion improver increased by 0.8%; 3） at higher combustion improver content,the width/ space of band obviously affected the ratio of full length burn but not the deliveries of mainstream smoke.