Wrapping paper pattern for an aerosol-generating article

Abstract

An aerosol-generating article comprising an outer wrapping sheet to form an outer tubular element of an aerosol-generating article that when rolled about a longitudinal axis, the outer wrapping sheet comprising a first edge comprising a proximal portion and a distal portion, wherein the proximal portion includes a glued section, and wherein the distal portion extends from the proximal portion at an acute angle relative to the longitudinal axis.

1 . An aerosol-generating article having a proximal end and a distal end, the aerosol-generating article comprising:
 an inner tubular element comprising an inner wrapping sheet circumscribing a combustible heat source positioned towards the distal end of the aerosol-generating article;   an outer wrapping sheet to form an outer tubular element of the aerosol-generating article when rolled about a longitudinal axis, the outer wrapping sheet comprising: a first edge comprising a proximal portion and a distal portion, wherein the proximal portion includes a glued section, and wherein the distal portion extends from the proximal portion at an acute angle relative to the longitudinal axis.   
     
     
         2 . The aerosol-generating article of  claim 1 , wherein the proximal portion of the first edge is substantially parallel to the longitudinal axis. 
     
     
         3 . The aerosol-generating article of  claim 1 , wherein the outer wrapping sheet further comprising a second edge, opposed to the first edge and comprising a second edge proximal portion and a second edge distal portion, wherein the first and second edges define a width of the sheet. 
     
     
         4 . The aerosol-generating article of  claim 3 , wherein the second edge proximal portion is substantially parallel to and substantially the same length as the proximal portion of the first edge. 
     
     
         5 . The aerosol-generating article of  claim 3 , wherein the second edge distal portion is substantially parallel to and substantially the same length as the distal portion of the first edge. 
     
     
         6 . The aerosol-generating article of  claim 3 , wherein the outer wrapping sheet further comprises proximal and distal end edges extending between the first and second edges at respective proximal and distal ends thereof. 
     
     
         7 . The aerosol-generating article of  claim 3 , wherein a first region is defined by the area of sheet between the first edge proximal portion and the second edge proximal portion, and wherein a first glue pattern, which includes the glued section, is applied to the first region. 
     
     
         8 . The aerosol-generating article of  claim 7 , wherein the first glue pattern is applied across the whole extent of the first region. 
     
     
         9 . The aerosol-generating article of  claim 3 , wherein a second region is defined by the area of sheet between the first edge distal portion and the second edge distal portion, and wherein the second region is split into a first zone adjacent the first edge and a second zone adjacent the second edge by a boundary line extending from the distal end edge to the first region, and wherein a second glue pattern is applied to the second zone. 
     
     
         10 . The aerosol-generating article of  claim 9 , wherein the second glue pattern is applied across the whole extent of the second zone. 
     
     
         11 . The aerosol-generating article according to  claim 9 , wherein the boundary line is substantially parallel to the first edge distal portion. 
     
     
         12 . The aerosol-generating article according to  claim 1 , wherein the outer tubular element extends from the proximal end of the aerosol-generating article towards the distal end thereof. 
     
     
         13 . The aerosol-generating article according to  claim 1 , wherein the outer wrapping sheet overwraps at least a portion of the inner tubular element. 
     
     
         14 . The aerosol-generating article according to  claim 1 , wherein the glued section of the first edge proximal portion is adhesively joined to a proximal end of the inner tubular element. 
     
     
         15 . The aerosol-generating article according to  claim 1 , wherein the aerosol-generating article further comprises a void space. 
     
     
         16 . The aerosol-generating article according to  claim 15 , wherein the inner wrapper includes a collapsible portion surrounding at least the void space. 
     
     
         17 . A method of manufacturing an aerosol-generating article, wherein the aerosol-generating article has a proximal end and a distal end, the method of manufacturing the aerosol-generating article comprising the steps of:
 providing an inner tubular element comprising an inner wrapping sheet circumscribing a combustible heat source positioned towards the distal end of the aerosol-generating article;   providing an outer wrapping sheet comprising a first edge comprising a proximal portion and a distal portion, wherein the proximal portion includes a glued section, and wherein the distal portion extends from the proximal portion at an acute angle relative to the longitudinal axis;   overwrapping at least a portion of the inner tubular element with the outer wrapping sheet by, starting from the first edge of the outer wrapping sheet:   adhesively joining the first edge proximal portion to the inner tubular element by bringing the glued section into contact with a proximal end of the inner tubular element; and,   wrapping the outer wrapping sheet about the inner tubular element by rolling.   
     
     
         18 . The method of any one of  claim 17 , wherein the overwrapping procedure comprises applying the outer wrapping sheet using a rotating drum. 
     
     
         19 . The method of  claim 18 , wherein the overwrapping comprises rolling the inner tubular element through a pinch between the rotating drum on which the outer wrapping sheet is temporarily attached and a stationary guide plate, the outer wrapping sheet wrapping around the inner tubular element during passage through the pinch. 
     
     
         20 . The method of  claim 17 , comprising manufacturing a pair of aerosol-generating articles back-to-back, including providing a singular mouthpiece filter element having first and second ends corresponding to initially conjoined first and second mouthpiece filters, wherein providing an inner tubular element comprises providing first and second inner tubular elements which are mounted to the respective first and second ends of the singular mouthpiece filter element, wherein the overwrapping of the first and second inner tubular elements is simultaneous, using a single outer wrapping sheet symmetrical about the centre of the mouthpiece filter element to form initially conjoined first and second outer tubular elements, the method including cutting through the conjoined outer tubular elements and the mouthpiece filter element to separate the conjoined articles into first and second aerosol-generating articles.