Multi-compound flow guiding cigarette filter stick and cigarette

Abstract

The invention discloses a multi-compound flow guiding cigarette filter stick comprising a bundle filter core and packaging paper wrapping the bundle filter core, from the smoke outlet direction to the smoke inlet direction, the bundle filter core comprises a first segment of filter core, a second segment of filter core, a third segment of filter core and a fourth segment of filter core in sequence, wherein the second segment of filter core is composed of an inner core part and an outer ring part wrapping the outer circumference of the inner core part, and suction resistance of the inner core part is further larger than that of the outer core part; in the axis direction, at least one first flow guiding hole communicating the inner end face and the outer end face of the third segment of filter core is formed in the center area of the third segment of filter core, at least one second flow guiding hole communicating the inner end face and the outer end face of the fourth segment of filter core is formed in the center area of the fourth segment of filter core, the first flow guiding hole and the second flow guiding hole are partially or fully aligned, and the pressure drop of the fourth segment of filter core is more than 200 Pa / cm. When the multi-compound flow guiding cigarette filter stick is applied to suction of a cigarette, adjusting of colors of a filter tip can be achieved after smoking, and in comparison with the prior art, the color of the filter tip changes shallow, and even the color of the filter tip keeps to be same as the color before the smoking and does not change.

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 guide the 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 th...

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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