METHOD AND DEVICE FOR CONTROLLING HYDROGEN CYANIDE AND NITRIC OXIDE CONCENTRATION IN CIGARETTE SMOKE

摘要

Abstract of the DisclosureThe invention provides a method for selectivelyremoving or controlling concentrations of toxic gas componentswithin cigarette smoke by utilizing as a filter element, theproduct of a filter rod-making apparatus, using as garniture feed,at least one polyolefin-containing substrate characterized inthat said substrate is treated with an effective amount of atleast one active modifier component comprising at least one mem-ber selected from sodium bicarbonate, sodium carbonate, potassiumpermanganate, manganese dioxide, dissolved or dispersed in anonionic spin solution.