Abstract: The invention relates to a method for manufacturing a first ventilation zone in a first aerosol-generating article and a second ventilation zone in a second aerosol-generating article, comprising the method steps: A) providing a first aerosol-generating article, B) forming first perforations in the first aerosol-generating article, thereby creating a first ventilation zone, C) determining the first air infusion value for the first aerosol-generating article, the air infusion value being determined by the equation (Pin?Pout)·100%/Pin, wherein Pin is the air pressure applied at the first end face of the article and Pout is the air pressure detected at the second end face of the article, D) comparing said first air infusion value to a reference value, E) providing the second aerosol-generating article and forming second perforations in the second aerosol-generating article, thereby creating the second ventilation zone, wherein a size of the second perforations is adjusted based on the comparison between the dete

Abstract: An aerosol-generating article is provided, including: a rod of aerosol-generating substrate; and a ventilation zone arranged downstream the rod, the ventilation zone being configured as a hollow tubular ventilation zone and including perforations, one or more of the perforations has a non-circular cross-section having an ovality of at least 1.5, the ovality being a ratio of a large diameter of a perforation divided by a small diameter of the perforation, a thickness of a peripheral wall of the ventilation zone being between 0.1 millimeter and 2.5 millimeters, the one or more perforations having a width of between 0.05 millimeter and 0.2 millimeter, and the one or more perforations having a length of between 0.25 millimeter and 1.0 millimeter. An aerosol-generating system including an aerosol-generating device having a cavity configured to receive the aerosol-generating article is also provided. A method for manufacturing the aerosol-generating article is also provided.

Abstract: An aerosol-generating article is provided, including: a rod of aerosol-generating substrate; and a ventilation zone including perforations and being arranged downstream of the rod, the perforations being arranged in a peripheral wall of the ventilation zone, each perforation having a central axis, the aerosol-generating article having a central axis, a smallest distance between the central axis of each perforation and the central axis of the aerosol-generating article being between 3% and 15% of an outer diameter of the aerosol-generating article, a thickness of the peripheral wall of the ventilation zone being between 0.1 millimeter and 2.5 millimeters, and the aerosol-generating article having a ventilation level of at least 20%. An aerosol-generating system including an aerosol-generating device having a cavity configured to receive the aerosol-generating article is also provided. A method for manufacturing an aerosol-generating article is also provided.

Abstract: An aerosol-generating article is provided for producing an inhalable aerosol upon heating, the article including: a mouthpiece assembly including first, second, and third tubes; and an aerosol-forming substrate, in which the first tube abuts a downstream end face of the second tube, and the third tube abuts an upstream end face of the second tube, an internal diameter of the second tube is smaller than an internal diameter of the first tube and of the third tube, the internal diameter of the first tube is between 3 mm and 8 mm, a ratio of the internal diameter of the first tube to the internal diameter of the second tube is between 1.2 and 5, a ratio of the internal diameter of the first tube to the internal diameter of the third tube is between 0.5 and 2, and the second tube is a cellulose acetate tube.

Abstract: An aerosol-generating article is provided for producing an inhalable aerosol upon heating, the article including: a rod of aerosol-generating substrate; a downstream section at a location downstream of the rod and including: a support element located immediately downstream of the rod and being in longitudinal alignment with the rod and including a first hollow tubular segment, and an aerosol cooling element immediately downstream of the support element and in longitudinal alignment with the support element and the rod, the aerosol-cooling element including a second hollow tubular segment; a ventilation zone at a location along the second hollow tubular segment; and an upstream section at a location upstream of the rod and including an upstream element positioned immediately upstream of the rod and having a resistance-to-draw (RTD) of less than 80 millimetres H2O, in which the article has a ventilation level of at least 10 percent.

Abstract: The present invention relates to a casting apparatus (101) for the production of a cast web (1) of a material containing alkaloids, said casting apparatus comprising: ?a casting box (10) having casting box walls including a first and a second opposite walls (12, 14), and adapted to contain a slurry (2); ?a movable support (20); ?a casting blade (70) adapted to cast the slurry contained in the casting box onto the movable support so as to form the cast web (1) of said material containing alkaloids; and ?a bar-like element (80, 180, 280, 380, 480) located inside the casting box (10) in contact with the slurry (2), the bar-like element being positioned at a first and at a second distance from the first and the second opposite walls (12, 14), respectively, so that the slurry (2) can flow around the bar-like element.