A tobacco rod, an aerosol-generating article including the same, and an aerosol generation device used with the aerosol-generating article are provided. The tobacco rod according to some embodiments of the present disclosure may include a first filter segment, a second filter segment, and a cavity segment which is formed by the first filter segment and the second filter segment and filled with a tobacco material. Here, at least one of the first filter segment and the second filter segment may include a paper material that is grease-resistant or water-resistant. Accordingly, a problem that vapor production is decreased due to moisture absorption from components of smoke can be addressed, and a heat-resistant tobacco rod can be manufactured.

Disclosed are cellulose acetate tows, bales, and filter rods having from greater than 9 to less than 12.5 denier per filament and from 20,000 to 40,000 total denier, for use in smoking devices, including aerosol-generating devices such as an electrically heated cigarette.

Disclosed are cellulose acetate tows, bales, and filter rods having from greater than 9 to less than 12.5 denier per filament and from 20,000 to 40,000 total denier, for use in smoking devices, including aerosol-generating devices such as an electrically heated cigarette.

There is provided an aerosol-generating article (10) comprising an aerosol-generating substrate (12) and a filter (14) in axial alignment with the aerosol-generating substrate (12). The filter (14) comprises at least one segment of filtration material formed of one or more sheets of a fibrous paper-like material. The fibrous paper-like material comprises a combination of hydrophobic fibres and hydrophilic fibres such that the fibrous paper-like material has a water contact angle as measured in accordance with TAPPI/ANSI T 558 om-15 greater than 90 degrees. Further, the fibrous paper material has a biodegradability in aqueous medium as tested in accordance with ISO 14851 (2005) of at least 90 percent of the maximum degradation of a cellulose reference item within 56 days of testing. In addition, the hydrophobic fibres comprise hydrophobic viscose fibres.

There is provided an aerosol-generating article (10) comprising an aerosol-generating substrate (12) and a filter (14) in axial alignment with the aerosol-generating substrate (12). The filter (14) comprises at least one segment of filtration material formed of one or more sheets of a fibrous paper-like material. The fibrous paper-like material comprises a combination of hydrophobic fibres and hydrophilic fibres such that the fibrous paper-like material has a water contact angle as measured in accordance with TAPPI/ANSI T 558 om-15 greater than 90 degrees. Further, the fibrous paper material has a biodegradability in aqueous medium as tested in accordance with ISO 14851 (2005) of at least 90 percent of the maximum degradation of a cellulose reference item within 56 days of testing. In addition, the hydrophobic fibres comprise hydrophobic viscose fibres.

The present invention relates to a biodegradable paper sheet for filter element comprising refined cellulose fibers and hydrophobic fibers.

The present invention relates to a biodegradable paper sheet for filter element comprising refined cellulose fibers and hydrophobic fibers.

A molding apparatus, a cigarette filter rod and a preparation method thereof are disclosed. The molding apparatus comprises a single-screw extrusion system and a cooling setting system. The single-screw extrusion system comprises a feeder and an extruder. The feeder is arranged on the extruder. The extruder comprises a cylinder. A heater is arranged outside the cylinder. A screw is arranged inside the cylinder, and a mouth mold is arranged at one end of the cylinder. The cooling setting system comprises a round tube and a cooler. The cooler (6) is arranged outside the round tube. One end of the round tube is butted with the mouth mold of the extruder; and multiple groups of grooves are formed on threads of the head of the screw.

A filtering unit for use with an electronic cigarette which includes a hollo housing and a filter pad located inside the housing. The housing has a first end, a second end, a front wall, and a rear wall. The front wall and the rear wall extend from the first end to the second end of the housing. The hollow housing also including a throughgoing opening formed at the second end and at least one pair of first internally extending prongs, these first prongs forming an internal chamber. The filter pad is positioned inside the internal chamber of the hollow housing. The second end of the hollow chamber is positionable over a portion of the electronic cigarette so as to filter out undesired particles in vapors of the electronic cigarette.

A filtering unit for use with an electronic cigarette which includes a hollo housing and a filter pad located inside the housing. The housing has a first end, a second end, a front wall, and a rear wall. The front wall and the rear wall extend from the first end to the second end of the housing. The hollow housing also including a throughgoing opening formed at the second end and at least one pair of first internally extending prongs, these first prongs forming an internal chamber. The filter pad is positioned inside the internal chamber of the hollow housing. The second end of the hollow chamber is positionable over a portion of the electronic cigarette so as to filter out undesired particles in vapors of the electronic cigarette.