Elongated Smoking Article

Abstract

An elongated smoking article is described that comprises a cylindrical smoking body with a combustible material and a hollow bore filter element downstream to the cylindrical smoking body. The hollow bore filter element comprises a first base area facing the smoking body and a second base area opposite the first base area and a hollow bore extending from the first base area to the second base area. The elongated smoking article further comprises a filter membrane that is arranged between the smoking body and the hollow bore filter, that comprises at least one filter aperture aligned with the hollow bore, that is configured for filtering particles emitted by the heated smoking body, that is permeable for vapor emitted by the heated smoking body and has an effective size between 0.5 μm and 1.5 mm.

1 . An elongated smoking article, comprising:
 a cylindrical smoking body with a combustible material;   a hollow element downstream to the cylindrical smoking body and comprising a first base area facing the smoking body and a second base area opposite the first base area and a hollow bore extending from the first base area to the second base area; and   a filter membrane arranged between the smoking body and the hollow element, comprising at least one filter aperture aligned with the hollow bore permeable for vapor emitted by the heated smoking body and having an effective size between 0.5 μm and 1.5 mm.   
     
     
         2 . The elongated smoking article according to  claim 1 , wherein the filter membrane is further configured to distribute heat emitted by the heated smoking body and/or generated by a device for heating the smoking body. 
     
     
         3 . The elongated smoking article according to  claim 1 , wherein the filter membrane is configured for mixing vapor components emitted by the heated smoking body. 
     
     
         4 . The elongated smoking article according to  claim 1 , wherein the filter membrane is configured for filtering particles emitted by the heated smoking body. 
     
     
         5 . The elongated smoking article according to  claim 1 , wherein the hollow element is one of a hollow bore filter element configured for filtering substances from vapor emitted by the heated smoking body and a hollow tube portion configured for mixing the vapor emitted by the heated smoking body. 
     
     
         6 . The elongated smoking article according to  claim 1 , wherein the filter membrane is disc-shaped and/or wedged between the smoking body and the hollow element. 
     
     
         7 . The elongated smoking article according to  claim 1 , wherein the membrane is formed of aluminum foil, paper, mesh material and/or cloth material. 
     
     
         8 . The elongated smoking article according to  claim 1 , wherein the filter membrane comprises at least one first portion extending along a lateral surface of the hollow element and bent from a second portion extending over the first base area and comprising the at least one filter aperture. 
     
     
         9 . The elongated smoking article according to  claim 8 , wherein the at least one first portion is glued to the lateral surface of the hollow element and/or formed of paper and/or wherein the second portion is formed of metal mesh. 
     
     
         10 . The elongated smoking article according to  claim 8 , wherein the filter membrane is formed of a metal mesh and is attached to the smoking body or the hollow element by a form closure and/or force closure between the at least one first portion and the smoking body or the hollow element. 
     
     
         11 . Method for producing a hollow element for an elongated smoking article according to  claim 1 , comprising the steps of:
 providing a hollow element with a first base area, a second base area opposite the first base area and a hollow bore extending from the first base area to the second base area;   providing a membrane sheet with a width exceeding a distance between the first base area and the second base area;   applying an adhesive to a first portion of the membrane sheet, the first portion having a width corresponding to the distance between the first base area and the second base area;   separating a segment from the membrane sheet, the segment having a length corresponding to the width of the membrane sheet;   attaching the first portion of the segment to a lateral surface of the hollow element via the adhesive; and   bending a second portion of the segment over the first base area of the hollow element.   
     
     
         12 . A smoking system, comprising an elongated smoking article according to  claim 1  and a heating device comprising a main body and a cavity configured for receiving the smoking body of the elongated smoking article and being configured for heating the smoking body and the filter membrane of the elongated smoking article inserted in the cavity. 
     
     
         13 . The smoking system according to  claim 12 , wherein the heating device comprises an elongated heating element projecting into the cavity and configured for penetrating the smoking body and contacting the filter membrane of an elongated smoking article inserted into the cavity. 
     
     
         14 . The smoking system according to  claim 12 , wherein the heating devices comprises a heat source for contactless heating of the filter membrane or an electric contact for providing a heating current to the conductive filter membrane. 
     
     
         15 . A heating device for a smoking system according to  claim 12 .