Wrappers for smoking articles having reduced diffusion...

Details Wrappers for smoking articles having reduced diffusion... Wrappers for smoking articles having reduced diffusion...

A - Human Necessities

24

D

A24D 1/02 (2006.01)

Patent

CA 2677708

Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles (10) include a wrapper (14) comprising cellulosic fibers and a filler. In accordance with the present disclosure, the filler has a particle size of at least about 3.2 microns and is present in the wrapper in an amount less than about 20% by weight. Further, the wrapper may have a basis weight of less than about 23 gsm and a permeability of from about 15 Coresta to about 130 Coresta. It has been discovered that such wrappers are capable of reducing the ignition proclivity characteristics of a smoking article. If desired, the particular wrapper as described above can also contain discrete areas treated with an ignition reducing composition which further serves to reduce the ignition proclivity characteristics of the article.

L'invention concerne des articles à fumer ayant des caractéristiques réduites de prédisposition à l'ignition. Les articles à fumer comprennent un emballage comportant des fibres cellulosiques et une charge. Selon la présente description, la charge a une taille de particule d'au moins environ 3,2 microns et est présente dans l'emballage en une quantité inférieure à environ 20 % en poids. En outre, l'emballage peut avoir un poids de base inférieur à environ 23 gsm et une perméabilité d'environ 15 Coresta à environ 110 Coresta. Il a été découvert que de tels emballages étaient capables de réduire les caractéristiques de prédisposition à l'ignition d'un article à fumer. Si cela est souhaité, l'emballage particulier tel que décrit ci-dessus peut également contenir des zones discrètes traitées avec une composition réduisant l'ignition qui sert en outre à réduire les caractéristiques de prédisposition à l'ignition de l'article.

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