Pouch of flexible packaging material with integrated weakness for opening
AssigneeAlusuisse Technology & Management Ltd.
InventorClaude A. Marbler
Life of this patent
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Abstract
Pouches of flexible packaging material exhibit a tearing zone in the form of a weakness such as perforations or a separation in the material, this in order to be able to remove the contents easily. The packaging material is covered over by at least one film-forming mass, at least in the region of weakness, in order that the package remains closed until the contents are to be used. The film-forming mass may be the decorative printing on the pouch. After packaging, the contents are protected by the pouch and, in order to remove the contents, the pouch may be opened readily by a pulling or snapping movement which causes the covering of film-forming mass to break.
Claims18
A pouch for holding contents, which comprises at least one flexible packaging material having a surface with an outside and inside thereof and including a zone for tearing the pouch open, wherein the zone for tearing the pouch open is a region of weakness in the packaging material and the region exhibiting the weakness is covered over on said surface to an area of at least 2 to 20 mm neighboring said region of weakness with at least one film-forming mass in the form of a coating printed onto the packaging material selected from the group consisting of (1) a multilayered, multicolored coating and (2) a coating including printing ink, which provides the packaging material with tensile strength in the area of weakness and wherein the contents of the pouch are protected by the pouch and, to remove the contents from the pouch, a pulling or snapping movement breaks the packaging material and the film-forming mass at the region of weakness, whereupon the contents of the pouch become accessible.
Dependencies are inferred from the claim text.