Composite cigarette filter rod capable of automatically guiding flow and composite cigarette

Abstract

The invention discloses a composite cigarette filter rod capable of automatically guiding flow. The composite cigarette filter rod comprises a tow filter element and packaging paper, the tow filter element sequentially includes a first filter element, a second filter element and a third filter element from a smoke inlet to a smoke outlet, the second filter element comprises an inner core and an outer ring sleeved on the periphery of the inner core, the axis line of the inner core is overlapped with that of the outer ring, and the suction resistance of the inner core is far higher than that of the outer ring. When the composite cigarette filter rod is applied to smoking a cigarette, most of smoke passes through the outer ring when the smoke passes through the first filter element and then reaches the second filter element as the suction resistance of the inner core is far higher than that of the outer ring, and the smoke flows along the periphery of the filter rod and simultaneously flows to the center of the filter rod under the suction action of the smoking process when reaching the third filter element. On one hand, filtration of peripheral tows is improved, on the other hand, the flow path of the smoke in the filter rod is lengthened, so that the filtering efficiency of the filter rod is improved, and the color of the filter rod after smoking is adjusted.

Description

technical field [0001] The invention relates to a cigarette, in particular to a cigarette filter rod and a cigarette which are equipped with a cigarette which can automatically drain smoke during smoking. Background technique [0002] In existing cigarette products, a filter tip is usually used to filter the tar in the mainstream smoke of the cigarette. The filter tip in the prior art has a simple structure. Due to the characteristics of airflow dynamics, when the mainstream cigarette smoke flows through the filter rod, the air velocity and flow rate in the central part are the largest, while the peripheral air velocity and air flow rate are low. See figure 1 , figure 1 The line with the arrow in the middle represents the airflow line, and the longer the airflow line, the greater the flow rate and the more aerosol particles. Depend on figure 1 It can be seen that in the cigarette products of the prior art, the mainstream smoke mainly escapes from the middle part of the fi...

AI Technical Summary

Problems solved by technology

Depend on figure 1 It can be seen that in the cigarette products of the prior art, the mainstream smoke mainly escapes from the middle part of the filter rod, and the peripheral part of the filter rod escapes less, which makes the utilization efficiency of the middle tow of the filter rod too high, while the utilization efficiency of the peripheral tow Lower, which will cause the end of the filter rod to turn yellowish brown after smoking, especially the middle part, which will affect the appearance

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