A machine for making sub-units of smoking articles includes a conveyor, a feed unit and an applicator. The conveyor conveys a succession of tubular segments transversely along a conveying direction. The feed unit feeds and conveys a continuous web and advances the web along a feed direction parallel to the conveying direction of the tubular segments so that the web faces respective application ends of the tubular segments. The applicator is movable along an application direction parallel to an axis of predominant extension of the succession of tubular segments and is configured to engage the web so as to separate respective closing elements from it. The applicator is also configured to apply the closing element internally or externally on an application end of a respective tubular segment in such a way as to form a closing wall to at least partly close the application end.

A method and apparatus are provided for manufacturing multi-component segments for smoking articles, each having a removable wrap. The method includes feeding a stream of heat sources and aerosol-forming substrates along a moving delivery path; compacting into groups at least one heat source and an aerosol-forming substrate, each group corresponding to at least one multi-segment component, each multi-segment component having a first end adjacent the heat source and a second end adjacent the aerosol-forming substrate; wrapping the heat sources and aerosol-forming substrates in a web of material, said web having spaced apart lines of weakness; aligning each line of weakness proximate to a respective heat source; and cutting said web at a position proximate to the first end of the at least one multi-segment component, wherein at least a portion of said web forms a removable wrap being removable by breaking the wrapper at the respective line of weakness.

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.

An apparatus and method for forming a smoking article rod is provided. A forming device is configured to engage a continuous stream of a smokable filler material with a first surface of a longitudinally-continuous web of a wrapping material, the web having first and second edge portions extending along the web, and a second surface opposing the first surface. A wrapping device is configured to longitudinally overlap the first and second edge portions such that the first surface about the first edge portion extends over the second surface about the second edge portion, to contain the smokable filler material within the web. An adhesive applicator device is configured to apply an adhesive material to the second surface about and longitudinally along the second edge portion, between the overlapped edge portions, prior to the wrapping device engaging the overlapped edge portions, with the adhesive material therebetween, to form a sealed seam.

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 (P.sub.inP.sub.out).Math.100%/P.sub.in, wherein P.sub.in is the air pressure applied at the first end face of the article and P.sub.out 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 determined first air infusion value and the reference value.

There is provided a smoking material wrapper having micropores, wherein when the smoking material wrapper is divided into three regions at equal intervals from an upstream distal end based on the case where the smoking material wrapper is applied to a smoking article, an average porosity is greater as a region becomes closer to a downstream. According to an embodiment of the present disclosure, the micropores have a pore size of 10 m to 50 m, and are formed by a perforation method using plasma. The wrapper may maintain functionality as a wrapping material due to low visibility or the like, and may minimize a dilution ratio decreased due to burning of a smoking material unit while maintaining a basic dilution ratio when the smoking material wrapper is applied to a smoking article.

The present disclosure relates to a method of manufacturing an article for use in an aerosol provision system, the method comprising: providing a first sheet material: providing a substrate comprising a first aerosol generating material, wherein the substrate is attached to the first sheet material; and, arranging the first sheet material with the substrate attached thereto such that the first sheet material surrounds the substrate. The present disclosure also relates to an article for an aerosol provision device. The present disclosure also relates to an assembly for use in manufacturing an aerosol provision device, a kit of parts comprising an article and an aerosol provision device, and to a package of articles.

A method and device for the plasma perforation of tipping paper, wherein a low temperature plasma is generated on the surface of the tipping paper by briefly ionizing a gas mixture using an energy source that is as close in form to a point as possible, wherein the ionizable gas mixture is locally restricted to a very small surface region of the tipping paper.

A method for producing a diffusion-optimized tipping paper for tobacco products, especially filter cigarettes, by plasma perforation of the web of tipping paper for the purpose of maximum carbon monoxide reduction, wherein the diffusivity and the permeability P of the perforated tipping paper are measured in-line and diffusivity is maximized by controlling the perforation parameters, the definable target permeability P.sub.soll being maintained at all times.

An aerosol-generating article, including: a rod of aerosol-generating substrate including between 5 percent to 30 percent aerosol former by weight on a dry weight basis; and a ventilation zone arranged downstream of the rod, the ventilation zone being arranged in a hollow tubular segment of a cardboard aerosol-cooling element, and the ventilation zone being configured as a hollow tubular ventilation zone, the ventilation zone including perforations, one or more of the perforations having a non-circular cross-section having an ovality, the ovality being a ratio of a large diameter of a perforation divided by a small diameter of the perforation, of at least 1.5, a thickness of the peripheral wall of the ventilation zone being between 0.1 millimeter and 2.5 millimeters, one or more perforations having a width of between 0.05 millimeter and 0.2 millimeter, and one or more perforations having a length of between 0.25 millimeter and 1.0 millimeter.