The invention discloses a special-shaped
composite filter tip rod and relates to the technical field of
cigarette filter rods, the special-shaped
composite filter tip rod comprises filter rod roll paper and tipping paper wrapping the filter rod roll paper and used for connecting the filter tip rod and a cigarette, a
filter element is wrapped in the filter rod roll paper, and the
filter element comprises a common filter section, a first special-shaped filter section and a second special-shaped filter section. One end of the common filter section is connected with a cigarette body of the cigarette, the other end of the common filter section is connected with one end of the first special-shaped filter section, the other end of the first special-shaped filter section is connected with one end of the second special-shaped filter section, the first special-shaped filter section is provided with a first special-shaped through hole, a spiral
filter element is fixedly arranged in the first special-shaped through hole, and a through hole is formed in the spiral filter element. The contact area of
smoke and the spiral filter element can be increased through the through hole, and the variable-
diameter special-shaped through hole is communicated with the first special-shaped through hole. According to the special-shaped
composite filter tip rod, the contact area of the filter element can be increased, and meanwhile the flow speed of
smoke is prevented from being affected.