Method for producing tobacco smoke filters

摘要

A method is disclosed for producing tobacco smoke filters wherein a continuous tube of smoke filtration material is ensheathed in a smoke-pervious layer of fibrous material. The ensheathed tube is cut into discrete lengths and in each of the lengths a cross section of the ensheathed material is rendered impervious to the passage of tobacco smoke and the tube is closed at a distance spaced longitudinally from the cross section.