卷烟动态吸阻及稳定性影响因素分析

Factors affecting cigarette dynamic draw resistance and its stability

为考察卷烟关键设计参数对卷烟动态吸阻及其稳定性的影响,建立了卷烟燃吸过程中动态吸阻稳定性和烟支间分布一致性评价方法,研究了烟支卷制参数、辅材设计参数及三丝掺配比例对卷烟动态吸阻及其稳定性影响。结果表明:在试验范围内,(1)随着烟丝宽度和单支质量增加,卷烟动态吸阻轴向稳定性下降;随着烟丝特征长度的增加,卷烟动态吸阻轴向稳定性增加;随着平准器槽深和槽宽的增加,卷烟动态吸阻轴向稳定性下降,烟支间分布一致性提升。(2)随着卷烟纸透气度的增加,卷烟动态吸阻轴向均值降低,卷烟动态吸阻轴向稳定性提升;随着滤棒丝束总旦数的增加,卷烟动态吸阻轴向均值呈增加的趋势,轴向稳定性提升,烟支间分布一致性下降。(3)增加膨胀烟丝与膨胀梗丝的掺配比例,卷烟动态吸阻轴向均值增加,轴向稳定性下降。

To investigate the effects of key cigarette design parameters on cigarette’s dynamic draw resistance and its stability,an evaluation method for the consistency of dynamic draw resistance between cigarettes was established.The effects of cigarette manufacturing parameters,auxiliary material design parameters,and the blend ratio of expanded tobacco,expanded cut stem and reconstituted tobacco on the dynamic draw resistance and its stability of cigarettes were studied.The results showed that within the tested range,1)with the increase of cut tobacco width and tobacco weight,the axial stability of dynamic draw resistance of the cigarette decreased,while it increased with the increase of characteristic length of cut tobacco.With the increase of pocket depth and width of ecreteur,the axial stability of dynamic draw resistance of cigarette decreased,and its consistency between cigarettes improved.2)With the increase of air permeability of cigarette paper,the axial mean value of dynamic draw resistance of cigarette decreased,while its axial stability increased.With the increase of the total denier of the filter tow,the axial mean value and the stability of the dynamic draw resistance of the cigarette increased,while the consistency between cigarettes decreased.3)As the blend ratio of expanded tobacco and expanded cut stem increased,the axial mean of the dynamic draw resistance of the cigarette increased,while the axial stability decreased.