Resealable flexible packaging
AssigneeTOPPAN Packaging Americas Holdings, Inc.
InventorScott William Huffer
Life of this patent
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Abstract
The present invention relates to a flexible packaging comprising a base layer and a film layer at least partially releasably affixed to the base layer via a pressure sensitive adhesive layer. The pressure sensitive adhesive layer comprises at least one adhesive zone and at least one adhesive-free zone extending continuously in a machine direction. The film layer is scored to form at least one pull tab which is disposed within the at least one adhesive-free zone and the base layer is scored to form at least one cavity which is disposed adjacent the at least one adhesive-free zone.
Claims19
A roll of flexible packaging film which is configured to be cut into individual packages, the roll of flexible packaging film comprising:
- a first film layer;
- and
- a second film layer at least partially releasably affixed to the first film layer via a pressure sensitive adhesive layer to form a laminate having a width and a length, wherein the length is greater than the width;
- the pressure sensitive adhesive layer comprising:
- at least one adhesive zone, and
- at least one adhesive-free zone, wherein the at least one adhesive-free zone extends partially across the width and continuously along the entire length of the roll of packaging film;
- wherein the second film layer comprises at least one pull tab which is disposed within the at least one adhesive-free zone and the first film layer comprises at least one cavity which is disposed within the at least one adhesive zone.
A method for forming a flexible packaging comprising:
- providing a first film layer;
- providing a second film layer;
- laminating the first film layer to the second film layer using a pressure sensitive adhesive to form a laminate having a length and a width wherein the length is greater than the width, wherein the pressure sensitive adhesive is applied such that it creates an adhesive zone and at least one adhesive-free zone between the base layer and the film layer, and wherein the at least one adhesive-free zone extends along the entire length of the laminate,
- scoring the second film layer to form at least one pull tab within the adhesive-free zone and at least one resealable flap which is continuous with the at least one pull tab;
- and
- scoring the first film layer to form at least one cavity which is disposed within the at least one adhesive zone.
Dependencies are inferred from the claim text.