Japan Tobacco Inc.

Takaichi Yoshida

Kazuyo Kaneki

Hiroshi Hara

Shinichiro Tanaka

Keigo Miura

Osamu Komatsubara

Hideaki Katsumata

Hayato Hasebe

The cigarette filter wrapper paper has a paper layer which has a first surface and a second surface. The filter wrapper paper exhibits a first overlap air permeability, measured when a perforated tip paper is overlapped on the first surface, and a second overlap air permeability, measured when a perforated tip paper is overlapped on the second surface. The first overlap air permeability is higher than the second overlap air permeability.

Multi-ply cigarette filter wrapper

A cigarette with a dual-structure filter includes a dual-structure filter having a first filter element and a second filter element arranged downstream of the first filter element, a tobacco rod arranged upstream of the filter, and a tip paper covering a downstream end portion of the tobacco rod and a circumferential surface of the filter. At least one row of a plurality of holes are formed in the tip paper in a circumferential direction of the filter. An air-permeation resistance per unit length of the second filter element is at least twice that of the first filter element. An air inflow rate from the tip paper is at least 20%.

Cigarette with a dual-structure filter

Growing community of inventors

Yokohama, Japan

Takaichi Yoshida