Self-drainage cigarette filter rod and self-drainage cigarette

Abstract

The invention discloses a self-drainage cigarette filter rod. A drainage piece in sphere shape is arranged in a filter rod main body and along the radial direction of the filter rod main body, wherein the drainage piece is located on the central position of the filter rod main body, the diameter of the drainage piece is greater than 2mm, and the diameter of the drainage piece is less than the diameter of the filter rod main body. The filter rod main body comprises a tow filer core and wrapping paper, wherein the tow filter core is divided into a first section filter core and a second section filter core along a direction from a smoke inlet to a smoke outlet, the second section filter core is hollow, and the inner cavity of the second section filter core is communicated with the outer end of the second section filter core. When the self-drainage cigarette filter rod is smoked, smoke passing through the first section filter core is forced to turn to the periphery of the filter rod and bypasses the drainage piece when runs into the drainage piece, and due to the facts that the second section filter core is hollow and the central position of the second section filter core is low in suction resistance, the smoke mainly escapes from the central position of the second section filter core after the smoke passes through the drainage piece. Accordingly, not only color and luster of the filter rod after being smoked can be adjusted, and the filter rod is dimmed, but also tar content in main stream smoke has no marked change simultaneously.

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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