加工参数对卷烟抽吸流畅性的影响研究OA

[Objective]This study aimed to investigate the effects of cigarette porosity and dynamic draw resistance on smoking smoothness under different processing parameters,including cutting width,cut tobacco drying(HDT)parameters(steam temperature and flow rate),and knife specifications(arc length and groove depth).[Methods]Cigarette porosity was measured using microfocus X-ray computed tomography(CT),and the porosity characterization method was improved.The axial stability and distribution consistency of dynamic draw resistance were evaluated by the standard deviation of dynamic draw resistance between cigarettes and the distribution consistency coefficient(η).An evaluation method for cigarette smoking smoothness was established using a combined CRITIC-analytic hierarchy process(AHP)weighting approach.[Results]Within the experimental range:1)Taking the cigarette paper into account during CT scanning improved the accuracy of porosity characterization.2)With increasing cutting width,cigarette porosity first increased and then decreased(maximum at 1.00 mm),while the uniformity of porosity distribution gradually declined;both the axial stability and distribution consistency of dynamic draw resistance decreased.As the HDT steam temperature increased and the steam flow rate decreased,cigarette porosity increased,porosity distribution uniformity decreased,axial dynamic draw resistance stability declined,and distribution consistency increased.With increasing knife arc length and decreasing groove depth,both porosity and its distribution uniformity decreased;axial dynamic draw resistance stability improved,and distribution consistency first decreased and then increased,with the best consistency observed at an arc length of 18 mm and a groove depth of 2.5 mm.3)Cigarette smoking smoothness significantly deteriorated as cutting width increased,was significantly improved by higher HDT steam temperature and lower steam flow rate,and was not significantly affected by changes in knife specifications.4)Under different processing parameters,both the uniformity of porosity distribution and the dynamic draw resistance had highly significant effects on cigarette smoking smoothness.[Conclusion]Within a certain range,increasing the HDT steam temperature and decreasing the steam flow rate improved cigarette smoking smoothness,whereas increasing the cutting width had a detrimental effect.