Research progress on cigarette filters using laser drilling method for ventilation and harm reduction

In order to understand the current research status of cigarette filters using laser drilling methods for ventilation and harm reduction, and provide ideas for related work on new product development and improvement, this article reviews the factors affecting the ventilation effect after filter punching, the mathematical model and CFD simulation study of cigarette smoke flow, and the study of cigarette draw resistance, ventilation rate and key substance release rules. The results show: The most popular online laser drilling technology for filters has good ventilation stability, but there are still some problems such as uneven hole shapes and side-cut oval holes, which make the ventilation effect of cigarette filters deviate from the original design intention. Furthermore, the mathematical correlation between cigarette filter laser drilling parameters - filter ventilation - key substance release - cigarette sensory quality should be found to reduce the trial and error cost of cigarette manufacturers and play a guiding role in the development and production of traditional cigarettes. Perforated cigarettes have the effect of reducing scorch and harm, but perforating holes will have a negative impact on the appearance quality of some cigarette products. Making perforated cigarettes more beautiful while ensuring ventilation and reducing char in cigarettes will be the future direction of laser perforation of traditional cigarettes.