Method for measuring cigarette draw resistance online

Abstract

The invention discloses a method for measuring cigarette draw resistance online. The method is characterized in that one end of a smoking machine is connected with a cigarette through an adapter device, and the other end of the smoking machine is connected with a differential pressure transducer determining system; when the cigarette which is not lighted is drawn by the smoking machine, a computer control part records online draw resistance of the cigarette and provides a linear fitting equation of online draw resistance and offline draw resistance. The method comprises the following steps: S01, preparation of the cigarette sample; S02, measurement of the online draw resistance of the cigarette; S03, measurement of the offline draw resistance of the cigarette; S04, establishment of the linear fitting equation of the draw resistance. The method has the advantages as follows: 1) physical characteristics of the cigarette cannot be changed during detection; 2) airflow parameters can be flexibly set, and the draw resistance of the cigarette during smoking of consumers with different smoking habits can be simulated; 3) the method is applicable to measurement of the draw resistance of the cigarettes of various specifications; 4) the method is applicable to computation of the offline draw resistance of the cigarettes of various specifications; 5) the draw resistance of the cigarette in the smoking process can be measured.

Description

technical field [0001] The invention relates to an online method for measuring cigarette draw resistance, belonging to the technical field of tobacco analysis. Background technique [0002] Cigarette draw resistance is an important control index of cigarettes. The size of cigarette draw resistance will affect the taste of cigarettes, the amount of smoke released such as tar, and the difficulty of smoking cigarettes. The cigarette draw resistance felt by consumers is the The resistance of cigarettes. The change in pressure drop during cigarette combustion directly affects the combustion state of cigarettes, and is closely related to the pyrolysis and chemical reactions of tobacco components and the production of harmful components in smoke during the combustion process. The smoking habits of different consumers are quite different, and the pressure drop feeling of consumers when smoking varies with different puffing parameters (mainly puffing capacity and puffing duration) a...

AI Technical Summary

Problems solved by technology

[0004] The current test method mainly has the following deficiencies: 1. The cigarettes tested by this method, after a certain distance of free fall, have changed the original physical state of the cigarette and cannot be used for other test items.

2. This method is an offline detection method, which cannot detect the actual draw resistance (that is, online draw resistance) when smoking a cigarette

3. This method sets the standard smoking conditions, that is, the gas volume flow rate is fixed at 17.5ml / s, which reflects the physical state of the cigarette to a certain extent, but cannot simulate the actual drag resistance experienced by smokers when smoking cigarettes

4. This method has clear requirements on the length and circumference of the cigarette. The existing method cannot detect cigarettes that exceed the specified size range.

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