Pipe flow type cooling pipe fitting for heating non-combustible cigarette and preparation method thereof

Abstract

The invention discloses a cooling pipe fitting for heating a non-combustible cigarette. The cooling pipe fitting comprises a pipe wall and a pipe cavity, the pipe wall of the cooling pipe fitting comprises an inner composite layer (21) and an outer first paper layer (22), the composite layer (21) comprises a non-woven fabric layer (211) and a second paper layer (212), and the second paper layer (212) is attached to the first paper layer (22). The method comprises the following steps: firstly, compounding a non-woven fabric layer (211) and a second paper layer (212) through a dry compounding method; bonding the second paper layer (212) and the first paper layer (22), and bonding the paper materials easily, so that different materials of the pipe wall of the pipe fitting are bonded firmly, the innermost non-woven fabric layer is not prone to falling off, and the problem that multiple materials are compounded and are not prone to bonding is solved. Furthermore, in the preparation processof the pipe fitting, spiral composite rolling can be used, a butt-joint process can also be used for rolling, and the rolling mode is flexible.

Description

technical field [0001] The invention relates to the field of heat-not-burn cigarettes, in particular to a cigarette used for heat-not-burn cigarettes. Background technique [0002] Heat-not-burn cigarettes use an external heat source to heat the tobacco sheet, and the tobacco can release smoke and nicotine only by heating and not burning. The harmful chemical components and toxicity of the gas are greatly reduced; at the same time, the sidestream smoke is greatly reduced, reducing the harm of second-hand smoke to non-smokers. [0003] Heat-not-burn cigarettes generally control the heating temperature of tobacco below 400°C, and reach the atomization temperature at 250°C to 350°C. The temperature of high-temperature atomized smoke entering the mouth through the filter section will be higher than that of traditional cigarettes. air temperature. The development of a cigarette structure with suitable smoke temperature and sufficient smoke release is the key to electric heating...

AI Technical Summary

Problems solved by technology

[0004] At present, heat-not-burn cigarettes in the prior art all use multi-stage filter rods to process the smoke generated by the core section. The filter rods include a cooling section and a filter section. The flow resistance of the cooling section, as well as avoiding the deformation of the cooling section due to heating, will cause the cooling section to collapse, thereby affecting the supporting performance of the cooling section on the cigarettes. Some cigarettes use paper tubes as the cooling section. A layer of polylactic acid film is added to the inner wall of the tube. In the existing process, the bonding of the polylactic acid film on the inner wall and the outer wallpaper material is carried out when the paper tube is formed, that is, the polylactic acid film and the paper are glued together during the process of rolling the paper tube. Next, the problems of this method are: 1. The bonding between the paper material and the polylactic acid film is not firm, and the polylactic acid film will fall off from the pipe when it is heated and deformed during use, thereby retaining part of the flue gas, resulting in low flue gas throughput , the amount of smoke is small; 2. During the rolling process, the paper material and the polylactic acid film are not easy to bond, so the rolling process can only be rolled in a spiral forming method that is easy to buckle, and the matching method that is not easy to buckle can not be used. Rolling, but the efficiency of spiral composite molding is low and the scrap rate is high

3. In addition to the cooling and supporting functions of the existing paper tubes, functions such as carrying incense are difficult to achieve or the effect is not good

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