SMOKING ARTICLE INCLUDING FLOW RESTRICTOR

摘要

There is provided a filter for a smoking article, the filter including a filter segment of filter material and a flow restrictor. The flow restrictor is embedded in the filter segment and surrounded on all sides by the filter material. A cross sectional dimension of the flow restrictor measured perpendicular to a longitudinal direction of the filter is between about 60% and about 95% of the diameter of the filter segment. There is also provided a smoking article including such a filter.

主权项

1. A filter for a smoking article, the filter comprising:
a filter segment of filter material, the filter segment having a diameter measured perpendicular to a longitudinal direction of the filter; and a flow restrictor embedded in the filter segment and surrounded on all sides by the filter material, wherein the flow restrictor is solid, wherein a cross sectional dimension of the flow restrictor measured perpendicular to a longitudinal direction of the filter is between about 60% and about 95% of the diameter of the filter segment, and wherein the flow restrictor is substantially spherical, the cross sectional dimension of the flow restrictor measured perpendicular to a longitudinal direction of the filter being a diameter of the spherical flow restrictor.