The invention relates to a filter material and/or filler material for mouthpieces for use with smoking products or HNB products, the filter material and/or filler material being based on cellulose acetate filaments, at least parts of which are in the form of hollow cellulose acetate filaments. The invention also relates to a mouthpiece for use with smoking products or HNB products, the mouthpiece comprising a filter material and/or filler material of the type according to the invention. The invention also relates to a cigarette filter comprising such a filter material and/or filler material, and to a corresponding method for manufacturing a filter material and/or filler material for mouthpieces for use with smoking products or HNB products.

The present disclosure relates to a flavor delivery article, a cartridge, and/or an aerosol delivery device that includes such flavor delivery article or a component thereof. The flavor delivery article includes a flavor substrate that can be formed of a porous material optionally having a graded porosity across at least a portion thereof. The flavor substrate further includes a flavor material retained thereby. The flavor substrate may be positioned within an outer shell of the flavor delivery article, and the flavor delivery article may be positioned anywhere within an aerosol delivery device (or a mouthpiece or a cartridge of an aerosol delivery device) wherein the flavor substrate retaining the flavor material may be contacted by a gaseous stream, such as a vapor stream and/or aerosol stream formed in the aerosol delivery device so that the flavor material may become entrained in the vapor stream and/or aerosol stream.

There is disclosed a method of making a filter element or mouthpiece (300) comprising the steps of: advancing filtering material in the longitudinal direction; drawing the advancing filtering material into a shaping element (110), to thereby form a longitudinally extending rod of filtering material comprising a channel extending longitudinally through the rod of filtering material; wherein the shaping element (110) comprises a chamber and a shaping rod (200) which extends longitudinally within the chamber, the inner surface of the chamber shaping the advancing filtering material to form the longitudinally extending rod of filtering material, and the shaping rod (200) shaping the advancing filtering material to form the channel extending longitudinally through the rod of filtering material; and wherein the shaping element (110) applies an additive to the filtering material.

A process for producing a filter element suitable for use in smoking articles may include: embedding a bundle of cellulose acetate fibers with an aqueous suspension of polyhydroxyalkanoate (PHA) to obtain a wet bundle of the cellulose acetate fibers covered by the aqueous suspension of the PHA; shaping the wet bundle in a form of a continuous elongated element; heating the continuous elongated element to temperature greater than or equal to 140° C. and less than or equal to 180° C. for time sufficient to melt the PHA and to evaporate water from the continuous elongated element; cooling the heated continuous elongated element to obtain crystallization of the PHA; and cutting the so-obtained continuous elongated element into segments of predetermined length.

The disclosure relates to delivery systems including aerosol-generating material and a cooling agent WS-3 in an amount sufficient to provide a cooling effect. In particular, the disclosure relates to delivery systems that do not provide any clearly noticeable smell or taste other than one of tobacco.

The method includes forming a filter material sheet, containing the filter material sheet to form a contained filter material, the containing including, folding the filter material sheet to create a plurality of folds along a width of the filter material sheet, gathering the filter material sheet to form the contained filter material, the plurality of folds in the filter material sheet forming interstices running through a longitudinal length of the contained filter material, the interstices being configured to allow an airflow to pass through the longitudinal length of the contained filter material, and infusing the filter material sheet with at least one first consumable substance, the at least one first consumable substance being one of nicotine, at least one first flavorant, a pre-vapor formulation, a combination thereof, or a sub-combination thereof.

According to embodiments of the present invention, there is provided a tube filter production device including a tube filter exterior forming case into which one or more filter tows are introduced and from which a tubular rod formed from the one or more filter tows is discharged, a tube filter forming bar extending in an inner region of the tube filter exterior forming case in order to form a hollow of the tubular rod, and a steam chamber having at least one steam nozzle in communication with the inner region of the tube filter exterior forming case and configured to supply steam to the one or more filter tows through the steam nozzle, wherein the tube filter forming bar has a duct extending in a longitudinal direction of the tube filter forming bar and a flavoring nozzle formed in a downstream end region of the tube filter forming bar to deliver a flavoring liquid or a moisturizing liquid supplied through the duct to the hollow of the tubular rod.

A device for burning smoking material and inhaling the resulting smoke is disclosed. The device can include an truncated conical member formed from a material having an internal elongated cavity extending from an open end to a closed end. The elongated cavity can be configured to receive a smoking material. The smoking accessory can include a filter disposed within the truncated conical member and defining the closed end. The filter can have a recess formed in a surface of the body along a curved face extending from the first end to the second end, the recess extending radially into the body. The smoking accessory can include a capsule containing a flavoring agent disposed within the recess.

The filter includes a contained filter material with one or more portions of a filter material. The one or more portions define interstices running through a longitudinal length of the contained filter material. The interstices allow an airflow to pass through the longitudinal length of the contained filter material. A consumable substance is infused within the filter material. The consumable substance includes nicotine, a flavorant, a pre-vapor formulation, a sub-combination thereof, or a combination thereof.

A filter element for use in a smoking article includes a filter material comprised of paper sheet having a crimped three-dimensional structure. Polyethylene glycol, triethyl citrate, or triacetin is interacted with the filter material to increase the selective removal of semi-volatile compounds from mainstream smoke being drawn through the filter element, over the filter material alone. An associated method of making a filter element for use in a smoking article is also provided.