FIELD: packaging industry.
SUBSTANCE: flexible packaging comprises a first layer of adhesive applied to the inner surface of the rear packaging panel. The adhesive material of the first layer comprises at least one visual indicator formed by at least one section of the predetermined shape, which is more transparent than the adjacent portions of the first adhesive layer. The second adhesive layer is applied to the inner surface of the front panel, wherein the second adhesive layer is located opposite to the layer of the first adhesive layer. If the flexible packaging is not fully closed, then the visual indicator in the first layer adhesive material is not visible through the second layer adhesive. If the flexible packaging is closed, then the said visual indicator is visible through the adhesive second layer.
EFFECT: increased convenience.
20 cl, 9 dwg
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RU2381969C2 |
