Closed heating type cigarette with controllable suction resistance

Abstract

The invention belongs to the field of heat-not-burn cigarettes, and particularly relates to a closed heating type cigarette with controllable smoking resistance. The cigarette comprises a tobacco section (1) with a sealed upstream end, a controllable suction resistance section (2) and a functional filter tip section (3) which are sequentially and coaxially connected in an abutting mode from upstream to downstream, and the cigarette is wrapped with an outer wrapping piece (4). The controllable suction resistance section (2) is a pipe body with an axial central cavity (2-1) and a circumferentialside wall through hole (2-2), and the controllable suction resistance section (2) further comprises a limiting flow guide element (2-3) which is arranged in the center cavity (2-1) and provided withan axial channel. According to the cigarette, a blocking layer covering the circumferential side wall of the central cavity and the side wall through holes is arranged on the controllable suction resistance section, the cigarette has certain air permeability, inflow of external air is not affected during suction, and when the smoke is not sucked, the smoke cannot escape through the side wall through holes, so that the smoke loss can be effectively reduced.

Description

technical field [0001] The invention belongs to the field of heat-not-burn cigarettes, in particular to a sealed heating cigarette with controllable draw resistance. Background technique [0002] Traditional tobacco has a history of hundreds of years and has been integrated into the lives of most smokers. In recent years, with the improvement of people's living standards, people have paid more and more attention to issues such as smoking and health, and the hazards of second-hand smoke, and the harmfulness of traditional tobacco products has become increasingly prominent. At the same time, with the implementation of the WHO Framework Convention on Tobacco Control, especially the gradual expansion of the scope of smoking bans in public places around the world, the development environment of tobacco products has undergone major and profound changes, and the structure of tobacco products is moving towards diversification. And the development direction of smoke-free to accelera...

AI Technical Summary

Problems solved by technology

[0003] At present, the vast majority of heat-not-burn cigarettes use air as the carrier of smoke. In order to ensure that the tobacco does not burn, the heating temperature applied is usually lower, generally not exceeding 300°C. Compared with traditional cigarettes, the new heat-not-burn The tobacco aroma components of cigarettes are difficult to fully release, and the smoke volume is insufficient, so this kind of cigarettes are difficult to be accepted by traditional smokers

In addition, in order to ensure air circulation, the tobacco end of most heat-not-burn cigarettes is an open structure, that is, the shredded tobacco or reconstituted tobacco sheet is directly exposed outside, or is connected to the outside atmosphere through a certain airflow channel. During the process of ejecting pods, tobacco residues will fall, which is easy to pollute the smoking equipment. Therefore, after using this type of tobacco for a period of time, it takes time to clean the smoking equipment.

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