At least two-layer label for opening and closing packages and the use thereof
View Patent ↗An at least two-layer label for opening and closing flexible packages provided with a pre-cut opening closable with a cover, having a base label provided with a first adhesive layer having a weakened cut-off area which is placed over the pre-cut opening, and a covering label whose lower part is provided with a second adhesive layer by which it is adhered to the base label; the adhesive strength of the base label to the package being greater than the adhesive strength of the covering label to the base label.
1. An at least two-layer label ( 1 ) for opening and reclosing a flexible pack which has a precut opening, closed with a lid, having a base label ( 3 ) having a top side and an underside, and whose underside is furnished with a first adhesive layer, which optionally prior to the bonding of the label ( 1 ) is lined with a release paper or release film,
In which base label ( 3 ) there is provided a section ( 31 ) whose connection to the rest of the base label ( 3 ) is weakened or severed, and which is adapted to be disposed above the lid of said pack, the top side of base label ( 3 ), other than section ( 31 ) being abhesively furnished, and optionally a segment at the edge of base label ( 3 ) being abhesively furnished, and having an outer label ( 2 ) having a top side and an underside whose underside is furnished with a second adhesive layer, by means of which the outer label ( 2 ) covers said weakened or severed section ( 31 ), and is bonded on the base label ( 3 ), the bond strength of the base label ( 3 ) on the base on which the label ( 1 ) is bonded being higher than the bond strength of the outer label ( 2 ) on the base label ( 3 ), and the bond strength between section ( 31 ) and outer label ( 2 ) being higher than the force needed to separate the lid in the pack, by means of the section ( 31 ) bonded thereon, from the pack,
and also optionally having further, protective labels provided on the outer label ( 2 ).
2. An at least two-layer label ( 1 ) for opening and reclosing a flexible pack which has a precut opening, closed with a lid, having a base label ( 3 ) having a top side and an underside and whose underside is furnished with a first adhesive layer, which optionally, prior to the bonding of the label ( 1 ) is lined with a release paper or release film, in which a section ( 31 ) has been removed to form an opening, the resulting opening in the base label being adapted to be disposed above the lid of the pack, the top side of base label ( 3 ), optionally other than a segment at the edge of base label ( 3 ) being abhesively furnished, and having an outer label ( 2 ) having a top side and an underside and whose underside is furnished with a second adhesive layer, by means of which the outer label ( 2 ) covers said opening in base label ( 3 ) and bonds to said lid, and is also bonded on the base label ( 3 ), the bond strength of the base label ( 3 ) on the base on which the label ( 1 ) is bonded being higher than the bond strength of the outer label ( 2 ) on the base label ( 3 ), and the bond strength between outer label ( 2 ) and lid being higher than the force needed to separate the lid from the pack, and also optionally having further, protective labels provided on the outer label ( 2 ).
3. The label of claim 1 or 2 , wherein there is at least one further segment, at an edge of the base label ( 3 ), in which the bond strength between outer label ( 2 ) and base label ( 3 ) is increased.
4. The label of claim 1 or 2 , wherein the outer label ( 2 ) has a greater area than the base label ( 3 ), and a segment of the outer label ( 2 ) extends over an edge of the base label ( 3 ).
5. The label of claim 1 or 2 , wherein on the underside of the outer label ( 2 ) an edge area is free of adhesive, the bond strength of this area is reduced or the adhesive is covered over, and said area serves as a grip tab.
6. The label of claim 1 or 2 , wherein said segment at said edge of said base label ( 3 ) is not abhesively furnished and, in the region of said segment of the base label ( 3 ) the outer label ( 2 ) has a line of weakening which is disposed at the transition between the nonabhesively furnished segment and the abhesively furnished portion of the base label ( 3 ).
7. The label of claim 1 , wherein the section ( 31 ) is connected to the base label ( 3 ) by means of holding points.
8. The label of claim 1 , wherein in the base label ( 3 ) the section ( 31 ) has a greater area than the opening in the pack.
9. The label of claim 1 , wherein the top face of the base label ( 3 ) is furnished abhesively by means of siliconization.
10. A flexible packaging having a precut opening which is covered by a label of claim 1 or 2 .
11. The flexible packaging of claim 10 , wherein said flexible packaging is a flexible pouch.
12. The label of claim 2 , wherein in the base label ( 3 ) the removed section ( 31 ) has a greater area than the opening in the pack.