Pack for tobacco articles provided with a pressurized sealed wrap and relative wrapping method
AssigneeG.D Societa' Per Azioni
InventorsRoberto Polloni, Angelo Li Vigni, Luca Federici
Life of this patent
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Abstract
A pack provided with: a group of tobacco articles; and a sealed wrap, which encloses the group of articles, has a pull-out opening for the articles, is pressurized so as to have an inner pressure that is higher than the atmospheric pressure, and consists of a heat-sealable sheet of wrapping material, which is folded around the group of articles and is stabilized by means of heat-sealing; in the sealed wrap there is a volatile aromatic substance that is independent of the group of tobacco articles.
Claims10
A pack (1) comprising:
- a group (4) of tobacco articles;
- and
- a sealed wrap (3), which encloses the group (4) of articles, has a pull-out opening (5) for the articles and consists of a heat-sealable sheet (14) of wrapping material, which is folded around the group (4) of articles and is stabilized by means of heat-sealing;
- the pack (1) is characterized in that:
- the sealed wrap (3) is pressurized and has an inner pressure that is higher than the atmospheric pressure;
- and
- in the sealed wrap (3) there is a volatile aromatic substance that is independent of the group (4) of tobacco articles.
A wrapping method to manufacture a pack (1) of tobacco articles comprising a sealed wrap (3);
- the wrapping method comprising the steps of:
- folding a heat-sealable sheet (14) of wrapping material around a group (4) of tobacco articles to obtain the wrap (3);
- and
- heat-sealing overlapping portions of the sheet (14) of wrapping material to stabilize and seal the wrap (3);
- the wrapping method is characterized in that it comprises the further steps of:
- feeding into the sealed wrap (3) a volatile aromatic substance that is independent of the group (4) of tobacco articles;
- and
- increasing the inner pressure of the sealed wrap (3) , in order to cause the sealed wrap (3) to have an inner pressure that is higher than the atmospheric pressure.
Dependencies are inferred from the claim text.