Mouthpiece lining paper with thermally expandable particles

Abstract

The invention relates to a mouthpiece lining paper which can be provided with at least one elevation by the action of heat, the mouthpiece lining paper including thermally expandable particles which are present in the substrate of the mouthpiece lining paper or a printing or lacquer layer, which printing or lacquer layer is present on the substrate of the mouthpiece lining paper.

1 - 14 . (canceled) 
     
     
         15 . A mouthpiece lining paper configured to provide at least one elevation by action of heat, comprising:
 thermally expandable particles in one of:
 a substrate of the mouthpiece lining paper; 
 a printing layer located on the substrate of the mouthpiece lining paper; and 
 a lacquer layer located on the substrate of the mouthpiece lining paper. 
   
     
     
         16 . The mouthpiece lining paper according to  claim 15 , further comprising:
 at least one elevation formed by thermally expanded particles;   wherein the at least one elevation is formed from the thermally expandable particles by heating the mouthpiece lining paper.   
     
     
         17 . The mouthpiece lining paper according to  claim 15 , wherein the thermally expandable particles are present in the substrate of the mouthpiece lining paper and the substrate is paper. 
     
     
         18 . The mouthpiece lining paper according to  claim 15 , wherein the thermally expandable particles are present in the printing layer or the lacquer layer. 
     
     
         19 . The mouthpiece lining paper according to  claim 18 , wherein the printing layer or the lacquer layer is only present in limited areas on the mouthpiece lining paper, the mouthpiece lining paper having at least one surface area in which thermally expandable particles are present and at least one further surface area in which there are no thermally expandable particles. 
     
     
         20 . The mouthpiece lining paper according to  claim 19 , wherein:
 the at least one surface area in which there are thermally expandable particles is optically identical to the at least one further surface area in which there are no thermally expandable particles; and   after exposure to heat the at least one surface area and the at least one further surface area become distinguishable due to expanded particles formed from the thermally expandable particles.   
     
     
         21 . The mouthpiece lining paper according to  claim 15 , wherein the printing layer or the lacquer layer is a printing ink, a clear lacquer layer, or colored lacquer layer. 
     
     
         22 . The mouthpiece lining paper according to  claim 15 , wherein a foil element is present above the at least one elevation. 
     
     
         23 . A method for producing a mouthpiece lining paper having at least one elevation, comprising:
 expanding thermally expandable particles by one of:
 contacting the mouthpiece lining paper with a hot surface; and 
 irradiating the mouthpiece lining paper with a laser beam; 
   wherein the thermally expandable particles are in one of:
 a substrate of the mouthpiece lining paper; 
 a printing layer located on the substrate of the mouthpiece lining paper; and 
 a lacquer layer located on the substrate of the mouthpiece lining paper; and 
   wherein the thermally expandable particles in areas of the mouthpiece lining paper in contact with the hot surface or heated by the laser beam expand and form the at least one elevation.   
     
     
         24 . The method according to  claim 23 , wherein a continuous web of mouthpiece lining paper is moved along an embossing roller with a hot structured surface, further elevations of a structure of the embossing roller being transferred as the at least one elevation to the mouthpiece lining paper. 
     
     
         25 . The method according to  claim 23 , wherein:
 a continuous web of mouthpiece lining paper is moved through a hot stamping device, the hot stamping device attaching a foil element to the mouthpiece lining paper; and   the thermally expandable particles of the mouthpiece lining paper present in an area of the foil element expand and form the at least one elevation.   
     
     
         26 . An aerosol-generating consumer article comprising:
 a mouthpiece lining paper configured to provide at least one elevation by action of heat, the mouthpiece lining paper including thermally expandable particles in one of:
 a substrate of the mouthpiece lining paper; 
 a printing layer located on the substrate of the mouthpiece lining paper; and 
 a lacquer layer located on the substrate of the mouthpiece lining paper; 
   wherein the mouthpiece lining paper is heated to form the at least one elevation on an outside of the aerosol-generating consumer article in a heated area.   
     
     
         27 . The aerosol-generating consumer article according to  claim 26 , wherein the elevation is in a form of a symbol, a structure, or a code. 
     
     
         28 . An apparatus for producing a mouthpiece lining paper according to  claim 15 , comprising:
 a first machine for printing or coating the mouthpiece lining paper; and   a second machine for hot stamping the mouthpiece lining paper;   wherein a band is transportable through the first machine and the second machine, the band being composed in a transverse direction of a plurality of mouthpiece lining papers, the plurality of mouthpiece lining papers including the mouthpiece lining paper, each of the plurality of mouthpiece lining papers being for one aerosol-generating consumer article.