| 摘要 |
FIELD: packing industry.SUBSTANCE: this invention relates to a package for tobacco industry items, for instance, smoking tobacco products, in particular, cigarettes. The invention objective is development of a package for cigarettes, comprising a check clapper valve, which pulls excessive pressure. The application describes a package comprising a closed reservoir with tobacco industry items, a coating of a plastic material applied onto a reservoir with a layer providing for an airtight seal between the inner space of the reservoir and the space outside of it; and a valve to ensure pressure drop between the inner space of the reservoir and the space outside of it. The above valve represents a check valve tightly inserted into the hole in the reservoir wall, making it possible to create a pressure drop between the inner space of the reservoir and the space outside of it.EFFECT: development of a package for cigarettes comprising a check clapper valve pulling an excessive pressure, making it possible to increase shelf life of cigarettes, and also possibility of stain formation onto cigarettes.38 cl, 7 dwg |
