PACKAGE Russian patent published in 2019 - IPC B32B27/08 B32B27/32 B65D65/40 

Abstract RU 2676980 C2

FIELD: package and storage.

SUBSTANCE: invention relates to the field of packaging and concerns wrapper-type packaging made of a flexible plastics film in the form of a sack or bag. Package has a front wall and a rear wall, which are located opposite each other and which are interconnected along each of the longitudinal sides by side sealing seams to form a sack-like or bag-like sleeve, the opening of which is closed by a closing valve, which is formed by a protruding extension of the rear wall and which is bent on the front wall over said opening and closed by longitudinal heat sealing on each of the longitudinal sides and by transverse heat sealing or gluing, wherein a flexible polymer film at least 50 wt. % consists of polyolefins and has a tensile strength in the longitudinal direction, which differs by at least 30 % from the tear strength in the transverse direction and subsequent uniaxial stretching in the longitudinal direction with a factor of at least 1:2, and has an auxiliary aid facilitating its opening, preferably in the form of a notch or barcode, which indicates the direction of lower tear strength to break the package without breaking any of the welds.

EFFECT: invention ensures the creation of a package that provides reliable protection and preservation of the product packed therein, preventing access thereto before its intended use, but which nevertheless would make it easy to open it.

21 cl, 10 dwg

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RU 2 676 980 C2

Authors

Zebald Ingrid

Shmidt Verner

Grimm Feliks

Dates

2019-01-14Published

2015-03-19Filed