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 μm and max. 1000 μm. The invention also relates to a segment with the filter material, a smoking product and a production method.

A method of manufacturing a conical filter body (1) for a conical smokable product filter, comprising the following steps: Providing a band-like or -shaped filed body material (3) Cutting out at least one blank (4) of predefined geometry from the band-like or -shaped filter body material (3), Connecting at least two sections (4.1, 4.2) of the at least one black (4) to form a conical filter body (1).

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.

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.

The object of the application is an apparatus for manufacturing a roll of crimped filling material for rod-like articles, comprising a unit (4) for feeding a continuous strand of the filling material and a crimping unit (5) for crimping the filling material. The apparatus is characterised in that between the unit (4) for feeding the continuous strand of the filling material and the crimping unit (5) there is a cutting unit (23) for cutting the continuous strand of the filling material (20) into sections (22), and in that the crimping unit (5) is adapted to crimp the cut-off section (22) of the filling material transversely to the direction of movement of the material section (22). The apparatus is further characterised in that the forming unit (16, 46, 51, 61) is adapted to form a roll (22X, 22Y) from the cut-off crimped section (22) of the filling material in the form of a substantially cylindrical rod. The object of the application is also a method for manufacturing a roll of crimped filling material for rod-like articles.

A method of manufacturing a compressed rod of web material for the filter rod of a aerosol-generating article, comprising: supplying a feed of web material (140) from a supply apparatus (110); drawing the web material (140) through a filter rod manufacturing apparatus; introducing a curved ridge (146B) into the central portion of the width wise cross-section of the web material (140) as it approaches contact with the interior of a folding funnel (120), by drawing the web material (140) across a forming surface (130 A) of a former (130) that contacts a central portion of the web material (140), in which the forming surface (130A) deflects the central portion of the web material (140) from a line extending between where the web material (140) leaves the supply apparatus (110) and the centre of an outlet (120B) of the folding funnel; and folding the web material (140) in the folding funnel (120) to form a compressed rod of web material.

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.

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 invention relates to a cardboard filter (1) for cigarettes, formed by folding, winding and gluing a cardboard strip (2). According to the invention, the cardboard strip (2) is folded to form a central portion (21) having a series of lobes (3, 4, 5, 6, 7) angularly equally distributed around a central axis (22) of the filter (2) and a peripheral portion (23) surrounding the central portion (21), the lobes (3, 4, 5, 6, 7) and the peripheral portion (23) delimiting gas passage channels (24) around the central axis (22).

A backing with corrugations on a first surface. The corrugations are parallel and each has an airspace along an entire longitudinal length. A second surface of the backing includes perforations or scores oriented perpendicularly or parallel to the corrugations. The corrugations or scores are fold lines or frangible tear lines. The airspaces may also include a filter material. The second surface of the backing may be adhered to a corner of a rolling paper on the surface but opposite edge as a gum strip. The corrugations are parallel to the gum strip.