A device for rolling a sheet includes a main casing which extends between a front face and a rear face and includes a cap which includes a first receiving slot, a sliding element translationally movably mounted in the main casing, from the front face of the casing and including a shell including a second receiving slot, a rotary element rotatably movably mounted and including a shaft housed inside the main casing, from the rear face of the casing, the shaft including an open third receiving slot, and a stop surface. In the closed position of the rolling device, the first and second slots are aligned along the same vertical plane.

The invention relates to a cardboard filter for cigarettes, formed by folding, winding and gluing a cardboard strip. According to the invention, the cardboard strip is folded to form a central portion having a series of lobes angularly equally distributed around a central axis of the filter and a peripheral portion surrounding the central portion, the lobes and the peripheral portion delimiting gas passage channels around the central axis.

A manufacturing machine and a manufacturing method for the production of a filter for a tubular element. There are provided: a folding conveyor, which moves at least one first pocket along a folding path, said first pocket being designed to house a sheet made of card stock and having an inner portion and an outer portion; a feeding station, where the first pocket receives the card stock sheet and engages the sole outer portion of the card stock sheet, leaving the inner portion of the card stock sheet free; a first folding station, where the inner portion of the card stock sheet left free by the first pocket is folded like the bellows of an accordion; and an insertion station, where the first pocket releases the card stock sheet having the inner portion folded like the bellows of an accordion.

Machine and method for producing substantially cylindrical articles of the tobacco processing industry; a material with cavities is fed, along a given path, through an insertion station, where powder material is inserted into the cavities, so as to obtain a strand, and through a wrapping station, in the area of which a strip is wrapped around the strand; the powder material is inserted into each cavity by a relative insertion unit, which moves in a synchronous manner along a coupling portion of the given path.

The present invention relates to a filter tube, the filter tube comprising an empty paper tube and a filter attached to the empty paper tube, wherein the filter comprises a first filter segment, a second filter segment and a third filter segment, wherein the first filter segment is located at the mouth end of the filter tube, the second filter segment is located upstream of the second filter segment and the third filter segment is located upstream of the second filter segment. The invention further concerns a method of making such a filter tube. The filter tube is suitable for make-your-own cigarettes.

The invention relates to a filter material for a smoking product, comprising a nonwoven material, wherein the nonwoven material is hydro-entangled, the hydro-entangled nonwoven material contains min. 50% and max. 90% wood cellulose fibres, min. 10% and max. 50% fibres from regenerated cellulose and less than 30% non-natural polymers, in relation to the mass of the hydro-entangled nonwoven material, and together the amount of wood cellulose fibres and fibres from regenerated cellulose make up at least 70% of the mass of the hydro-entangled nonwoven material, and the hydro-entangled nonwoven material has a density of min 100 kg/m.sup.3 and max. 300 kg/m.sup.3 and a thickness of min. 100 m and max. 1000 m. The invention also relates to a segment with the filter material, a smoking product and a production method.

A filter for a smoking product. The filter includes a filling which is made of a filter material, and a filter body having a tubular covering body which is arranged to radially surround the filling. The tubular covering body has a cylindrical inner circumference and a substantially conical outer circumference.

A machine for making a continuous tubular element with filling from web material, including first and second means for feeding respective continuous webs, a forming station configured to perform a folding and/or deformation of a first continuous web in a shaped configuration, and a wrapping station wherein the second continuous web is wound in a tubular shape around the first continuous shaped web to obtain the continuous tubular element. Upstream of the wrapping station there is a first gluing device configured to apply at least one longitudinal line of glue on at least one of the continuous webs in such a way as to define at least one gluing zone, said longitudinal line of glue being positioned in such a way as to coincide with a zone of superposing and contact between the two continuous webs feeding out of the wrapping station.

An element for an aerosol generating article or a smoking article comprising a longitudinally extending hollow tube, a layer comprising filler material, wherein the layer is engaged around the hollow tube, and a wrapper engaged around the layer, wherein the hollow tube comprises a helically wound sheet of material and wherein the helically wound sheet of material has partially overlapping helical turns.