The present invention relates to a filter manufacturing apparatus comprising: a feed path adapted to continuously feed a filter material along a longitudinal transport direction; a forming device connected to a terminating end of the feed path and adapted to form the filter material into a continuous filter body and to deliver the formed continuous filter body, the forming device including: a tubular element (8) adapted to allow the filter material to pass therethrough to form the filter tow material into the continuous filter body; and a steam generator (9) adapted to produce steam, the steam generator being in fluid communication with the tubular element to supply steam to the filter material; a drain channel (10) in fluid communication with the tubular element adapted to drain fluid from the tubular element; a valve adapted to open and close the drain channel so as to allow or block discharge of fluid from the tubular element.

The invention relates to a filter manufacturing apparatus (1) to form a hollow filter body, the filter manufacturing apparatus comprising: a feed path adapted to continuously feed a filter material along a longitudinal transport direction (30); a forming device (4) connected to a terminating end of the feed path and adapted to form the filter material into a hollow rod-shaped filter body and deliver the formed filter body, the forming device including: .square-solid. a tubular forming element (8) adapted to allow the filter material to pass therethrough, .square-solid. a pin (34) extending longitudinally within the tubular forming element, the pin having a pin diameter;a diameter changing device (40), adapted to vary the pin diameter of the pin, so as to obtain a filter body having a through hole of variable diameter.

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.

The present invention relates to improvements in filters, for use in smoking articles, comprising randomly oriented discrete fibres, wherein a loss of particulate additives can be reduced by adding a liquid with a viscosity of at least 2000 m Pa*s at 20 C. and normal pressure.

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.

Provided is a material (cigarette component) that enables the elimination or minimization of illicit cigarette production. Specifically, related is a cigarette filter tow band including a crimped bundle of filaments. The tow band includes a detectable marker for identifying the source of the tow band.

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.

A filter material is described for manufacturing a nicotine delivery product, wherein the filter material is hydroentangled and contains at least 50% and at most 100% cellulose fibers, each with respect to the mass of the filter material, wherein the filter material has a basis weight of at least 25 g/m.sup.2 and at most 60 g/m.sup.2, and wherein the filter material has a structure that is characterized in that it provides the filter material with a transparency that, measured in accordance with DIN 53147:1993-01, is at least 45% and at most 70%. Furthermore, a segment comprising a filter material for a nicotine delivery product, a smoking article which comprises such a segment, an oral nicotine delivery product, and a process for the manufacture of the filter material are described.

A filter manufacturing machine includes a feed path (7) configured to continuously feed a sheet material containing filter fibers and provided with a first plasticizer addition unit (9); a forming device (3) connected to a terminating end of the feed path (7) and configured to form the sheet material (6) into a hollow rod-shaped continuous filter body (11), the forming device including a tubular forming path for forming the sheet material (6) into the continuous filter body (11), a heat treating section for heating the sheet material, and a second plasticizer addition unit (14) arranged near the inlet of the tubular forming path; and a wrapping device (4) configured to receive the continuous filter body (11) delivered from the forming device (3) and wrap the continuous filter body in a wrapper to form a filter rod (19).

A component for an article for use in an aerosol provision system includes a body of material, wherein the body has a longitudinal axis and includes one or more sheets extending through the body, said one or more sheets having a permeability of between about 1,000 and about 50,000 Coresta Units and the component having an average bulk density across the body of between about 0.05 and about 0.5 gms/cm.sup.3. An article including the component and a method of manufacture are also described.