Cigarette segmental draw resistance measuring method

Abstract

A cigarette segmental draw resistance measuring method comprises the steps of dividing a whole cigarette into six parts including a cut tobacco part wrapped by cigarette paper, a cigarette paper part, a cut tobacco part wrapped by tipping paper, a front part of a filter tip, a rear part of the filter tip and a filter tip ventilation hole part, and R1, R2, R3, R4, R5 and R6 are used for respectively representing the draw resistance of the segmental parts of the cigarette. Through measurement of open draw resistance, closed draw resistance, two types of semi-closed draw resistance, total ventilation rate, filter tip front segment length and filter tip rear segment length, the corresponding total resistance value of the cigarette is obtained, and meanwhile, by utilizing series-parallel connection relationships between the resistance values of the six segment parts of the cigarette as well as a relational expression between the draw resistance and the resistance values as well as airflow amount are used to calculate the draw resistance of each segment of the cigarette. The method provided by the invention has the advantages of simple operation and simple calculation, can realize accurate measurement on the draw resistance of each part of the cigarette under the condition of different types of filter tip ventilation technologies, and provides basic support for cigarette product quality tracing, product design and process optimization.

Description

technical field [0001] The invention relates to the technical field of cigarette quality detection, in particular to a method for measuring segmental draw resistance of cigarette sticks. Background technique [0002] Cigarette draw resistance is one of the important indicators of the physical quality of cigarette products, and its size has an important impact on the sensory quality and smoking difficulty of cigarette products. The cigarette smoking resistance is mainly composed of the sections that form the cigarette, and the cigarette smoking that forms the drawing resistance can be divided into six parts: the shredded tobacco part wrapped in cigarette paper, the part of cigarette paper, the shredded tobacco part wrapped in tipping paper, The six parts are the front part of the filter from the contact surface between the filter and shredded tobacco to the position of the filter vent hole, the rear part of the filter from the position of the filter vent to the suction end of...

AI Technical Summary

Problems solved by technology

Although the above method has realized the measurement of cigarette open draw resistance and closed draw resistance, to obtain six parts (the part of shredded tobacco wrapped in cigarette paper, the part of cigarette paper, the part of shredded tobacco wrapped in tipping paper, the contact surface of filter tip and shredded tobacco to the filter The front part of the filter at the position of the vent hole of the mouth, the rear part of the filter from the position of the vent hole of the filter to the suction end of the filter, and the vent part of the filter) independent suction resistance, the six parts need to be physically decomposed and tested separately Obtain the pressure drop (draw resistance) of each part at a constant flow rate, and then combine the draw resistance characteristics of the whole cigarette through certain rules, but this method requires decomposition and cutting operations, which destroys the structure of the original cigarette, and the measurement efficiency is low , the influence of human factors is large

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