Mouthpiece for an article for use in an aerosol provision system and an article for use in an aerosol provision system

Abstract

A mouthpiece for an article for use in an aerosol provision system and an article for use in an aerosol provision system. A mouthpiece for an article for use in an combustible aerosol provision system includes a body of material at a mouth end of the mouthpiece. The body has a longitudinal axis and a cross sectional area measured perpendicular to the longitudinal axis and comprises fibrous material. The total denier of fibrous material per cross sectional mm 2 of the body is less than about 720 grams/9000 m. The pressure drop across the length of the body is from 1.05 to 1.70 mm water per mm length of the body.

1 . A mouthpiece for an article for use in an aerosol provision system, the mouthpiece comprising a body of material at a mouth end of the mouthpiece, wherein the body has a longitudinal axis and a cross sectional area measured perpendicular to the longitudinal axis and comprises fibrous material, wherein the total denier of fibrous material per cross sectional mm 2  of the body is less than about 720 grams/9000 m, and the pressure drop across the length of the body is from about 1.05 to about 1.70 mm water per mm length of the body. 
     
     
         2 . A mouthpiece according to  claim 1 , wherein the fibrous material has a weight of from about 0.09 mg to about 0.13 mg per mm 3  of said body. 
     
     
         3 . A mouthpiece according to  claim 1 , wherein the fibrous material has a weight of from about 4 mg to about 6 mg per mm of length of said body. 
     
     
         4 . A mouthpiece according to  claim 1 , wherein the total denier of fibrous material per cross sectional mm 2  of the body is less than about 700 g/9000 m, or less than about 675 g/9000 m, or less than about 650 g/9000 m. 
     
     
         5 . A mouthpiece according to  claim 1 , wherein the fibrous material comprises a denier per filament of about 6 to about 12 denier per filament, or about 7 to about 10 denier per filament, or about 7.5 to about 9 denier per filament. 
     
     
         6 . A mouthpiece according to  claim 1 , wherein the total denier of the fibrous filtration material is from about 25000 to about 35000 g/9000 m, or about 28000 to about 32000 g/9000 m, or about 29000 to about 31000 g/9000 m. 
     
     
         7 . A mouthpiece according to  claim 1 , wherein the body of material comprises a plasticizer, and wherein the level of plasticizer is from about 5% to about 14% by weight of the body of material, or from about 8% to about 13% by weight of the body of material, or from about 10% to about 12% by weight of the body of material. 
     
     
         8 . A mouthpiece according to  claim 1 , wherein the body of material is circumscribed by a plug wrap, and wherein the plug wrap comprises a basis weight of about 20 to about 65 grams per square meter, or about 45 to about 65 grams per square meter, or about 50 to about 60 grams per square meter. 
     
     
         9 . A mouthpiece according to  claim 1 , wherein the mouthpiece has a circumference in the range 16 mm to 23 mm or in the range 23 mm to 25 mm. 
     
     
         10 . A mouthpiece according to  claim 1 , wherein the mouthpiece comprises at least one further section upstream of the body of material. 
     
     
         11 . A mouthpiece according to  claim 10 , wherein the at least one further section comprises a section formed from cellulose acetate tow. 
     
     
         12 . A mouthpiece according to  claim 10 , wherein the at least one further section comprises a hollow tubular section. 
     
     
         13 . A mouthpiece according to  claim 10 , wherein the at least one further section comprises particulate adsorbent material. 
     
     
         14 . A mouthpiece according to  claim 1 , wherein the hardness of the mouthpiece at a position 3 mm from the mouth end of the mouthpiece is in the range 90% to 99%. 
     
     
         15 . A mouthpiece according to  claim 1 , wherein the mouthpiece is circumscribed by a filter wrapper comprising a basis weight in the range 20 to 35 grams per square meter. 
     
     
         16 . A mouthpiece for an article for use in a combustible aerosol provision system, the mouthpiece comprising a body of material at the mouth end of the mouthpiece; and
 a tubular element positioned upstream of the body of material and formed from filamentary tow extending over a longitudinal portion of the mouthpiece from a position less than about 12 mm from the mouth end of the mouthpiece to a position greater than about 12 mm from the mouth end of the mouthpiece.   
     
     
         17 . A mouthpiece according to  claim 16 , wherein the mouthpiece has a hardness of at least about 85% at a position 12 mm from the mouth end of the mouthpiece. 
     
     
         18 . A mouthpiece according to  claim 16 , wherein the tubular element extends over a longitudinal portion of the mouthpiece from a position less than about 10 mm from the mouth end of the mouthpiece to a position greater than about 13 mm from the mouth end of the mouthpiece. 
     
     
         19 . A mouthpiece according to  claim 16 , wherein the tubular element extends over a longitudinal portion of the mouthpiece from a position less than about 9 mm from the mouth end of the mouthpiece to a position greater than about 13 mm from the mouth end of the mouthpiece. 
     
     
         20 . A mouthpiece according to  claim 1  and further comprising a tubular element positioned upstream of the body of material and formed from filamentary tow extending over a longitudinal portion of the mouthpiece from a position less than about 12 mm from the mouth end of the mouthpiece to a position greater than about 12 mm from the mouth end of the mouthpiece. 
     
     
         21 . An article for use in a combustible aerosol provision system comprising the mouthpiece of  claim 1 . 
     
     
         22 . An article according to  claim 21 , wherein said combustible aerosol provision system comprises a cigarette or a cigarillo. 
     
     
         23 . An article for use in an aerosol provision system, the article comprising a mouthpiece according to  claim 1  and a rod of aerosol generating material.