Method for enhancing cooling effect of polylactic acid section and filter tip thereof

Abstract

A method for enhancing the cooling effect of a polylactic acid section is characterized in that holes are evenly punched in a polylactic acid film forming the filter section of the polylactic acid film of a cigarette filter tip, it is guaranteed that the bottom edges of the holes are not cut off to form wing films which are connected with a film body and turned outwards, and the wing films stretch out of the two sides of the film body in a staggered mode. The wing film is arranged on the film body, so that smoke generated during suction can circulate in a surrounding manner and is in full contact with the polylactic acid film for heat exchange, the cooling effect of the polylactic acid section is improved, and the included angle between the wing film and the film body is 30-45 degrees; the opening direction of the holes faces the flow direction of the smoke or is opposite to the flow direction of the smoke. The problem that the smoke temperature of an existing heating non-combustion cigarette is high is solved, smoke is in full contact with the polylactic acid film for heat exchange, the contact area between the smoke and the polylactic acid film is increased as much as possible, the contact time between the smoke and the smoke is prolonged as much as possible under the condition that smoke circulation is not affected, and therefore the temperature is reduced; therefore, the purposes of improving the cooling effect of the polylactic acid section and balancing smoke are achieved.

Description

technical field [0001] The invention relates to a method for cooling the polylactic acid section of a filter tip of a heat-not-burn cigarette; by drilling holes in a polylactic acid film, the surrounding flow of smoke during smoking is increased, so that the smoke and the polylactic acid film are fully contacted, and the heat is reduced. Faster convection to the surface of the cigarette, so as to improve the cooling effect of the polylactic acid section and balance the smoke. Background technique [0002] In recent years, the vitality of the traditional tobacco market has declined, new types of tobacco have developed rapidly, and heat-not-burn cigarettes have developed rapidly in the international market. Research on heated cigarettes has become a hot issue in tobacco technology. Among them, the filter tips of heat-not-burn cigarettes are quite different from those of traditional cigarettes. like figure 1 As shown, its structure is mainly composed of three sections of holl...

AI Technical Summary

Problems solved by technology

[0004] At present, some heat-not-burn cigarettes still have the problem of high smoke temperature, and the smoke mainly exchanges heat through full contact with the polylactic acid film, so the polylactic acid film needs to increase as much as possible without affecting the circulation of the smoke. Large contact area and contact time with flue gas to reduce temperature

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