A method is provided to crimp a sheet having, before crimping, a thickness, a moisture, a composition, and a width, the method including: obtaining one pre-crimping sheet characteristic among the thickness of the sheet, the moisture of the sheet, the composition of the sheet, and the width of the sheet; crimping the sheet to form a plurality of corrugations on the sheet, the crimping including providing a pair of crimping rollers defining a nip therebetween, the nip having a nip size, and inserting the sheet in the nip; evaluating a post-crimping characteristic of the sheet after crimping; and varying the nip size on the basis of the obtained one of the pre-crimping sheet characteristic, and on the basis of the evaluated post-crimping sheet characteristic. An apparatus to crimp a sheet is also provided.

A component for an article for use in an aerosol delivery system includes a body of fibrous material comprising first and second additive release components embedded within the body of fibrous material. The first and second additive release components each have a maximum diameter between about 1.5 mm and about 2.5 mm and the first and second additive release components are separated by a distance of less than about 2.5 mm. There is also provided an article including the component and a system including the article and a non-combustible aerosol provision device for heating the aerosol generating material of the article. A manufacturing method is also provided.

An aerosol-generating article for producing an inhalable aerosol upon heating is provided, the article including: a rod of aerosol-generating substrate; a mouthpiece element having a length L1 and including at least one mouthpiece filter segment formed of a fibrous filtration material; and an intermediate hollow section between the rod and the mouthpiece element, the intermediate hollow section having a length L2 and including: an aerosol-cooling element downstream of the rod and including a hollow tubular segment defining a longitudinal cavity providing an unrestricted flow channel, a length of the aerosol-cooling element being less than 10 millimetres, and a support element between the aerosol-cooling element and the rod, in which an upstream end of the aerosol-cooling element abuts a downstream end of the support element, and in which the length L1 of the mouthpiece element is at least 0.4 times the length L2 of the intermediate hollow section.

An aerosol-generating article for producing an inhalable aerosol upon heating is provided, the article including: a rod of aerosol-generating substrate; a mouthpiece element having a length L1 and including at least one mouthpiece filter segment formed of a fibrous filtration material; and an intermediate hollow section between the rod and the mouthpiece element, the intermediate hollow section having a length L2 and including: an aerosol-cooling element downstream of the rod and including a hollow tubular segment defining a longitudinal cavity providing an unrestricted flow channel, a length of the aerosol-cooling element being less than 10 millimetres, and a support element between the aerosol-cooling element and the rod, in which an upstream end of the aerosol-cooling element abuts a downstream end of the support element, and in which the length L1 of the mouthpiece element is at least 0.4 times the length L2 of the intermediate hollow section.

A multi-purpose internal component for an aerosol-generating product includes a hollow cylinder and air-permeable sealing members located at two ends of the hollow cylinder, where the hollow cylinder is filled with a functional material. The hollow cylinder can be filled with a smoke-generating material, a material with cooling, fragrance-enhancing, and harm-reducing functions, a filter material, and the like, such that multiple functions can be achieved; and the air-permeable sealing members at the two ends enable an air-flow channel. The internal component for an aerosol-generating product is simple and widely used in aerosol-generating products. An aerosol-generating product using the multi-purpose internal component for an aerosol-generating product is provided, where the multi-purpose internal component for an aerosol-generating product can be used as an aerosol-generating component, a multi-functional component, or a filter component.

A smoke filter apparatus comprising a segmented conduit formed of a plurality of nesting sections and comprising one or more filters. The filters may comprise a preferred filter sequence, wherein the preferred filter sequence comprises a metal screen filter, a charcoal filter, and an acetate filter.

A smoke filter apparatus comprising a segmented conduit formed of a plurality of nesting sections and comprising one or more filters. The filters may comprise a preferred filter sequence, wherein the preferred filter sequence comprises a metal screen filter, a charcoal filter, and an acetate filter.

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 method for preparing a tar extract with aroma characteristics from a discarded cigarette butt includes: (1) adding the discarded cigarette butt to an extraction solvent, and carrying out subcritical fluid extraction to obtain an extraction solution; (2) carrying out vacuum filtration on the extraction solution, and carrying out vacuum distillation on the filtrate to obtain a concentrated extractum; and (3) carrying out molecular distillation on the concentrated extractum, and collecting a light fraction of the molecular distillation to obtain the tar extract with aroma characteristics. Through the subcritical fluid extraction and separation by the molecular distillation to prepare the tar extract, harmful substances in the tar are removed, and the aroma components are retained. The tar extract is applied to a cigarette to improve the aroma, smoke and taste characteristics of the cigarette.

A device for use while burning smoking material and inhaling the resulting smoke is disclosed. The device can include a filter comprising a filter element having a shaped rim structure and a recess formed in a surface of a body of the filter 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 device may be received by a first end a tubular member formed to receive a smoking material, that when burned passes smoke into the device.