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AssigneeKlabin S.A.
InventorsGuilherme Giesel, Gustavo Esmério da Silva, Marcio Jose Da Silva, Franck de Sousa Ferreira, Alexandro Wehmuth, Aluisio Ramos Guedes, Antonio Alexandre Souza, Erico De Castro Ebeling
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The present invention is related, in one embodiment, to a paper packaging, totally free of plastic film, with water vapor barrier and tear resistance, whereby it may present perforations in specific regions. The packaging of the present invention further presents, in one embodiment, a sheet coated on the external face thereof with a water repellent agent. The packaging of the present invention presents the property of increasing the shelf life of the stored material.
Packaging characterized by the fact that it comprises at least one sheet of kraft paper, coated with a vapor passage barrier agent, comprising from about 6 to about 20 g/m2, preferably about 10 g/m2 vapor passage barrier agents.
Dependencies are inferred from the claim text.