Method for manufacturing two different patterned adhesive layers simultaneously
OwnerChaabane Bougherara, Peter Kwok Hing Lam +1inventors
InventorsChaabane Bougherara, Peter Kwok Hing Lam, Bjarke Strom-Hansen
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Abstract
The present invention relates to a method of manufacturing two different patterned adhesive layers simultaneously, and a wound dressing comprising both the adhesive layers.
Claims14
A method for manufacturing a first and a second backing layer each of which carrying on an upper surface an adhesive layer defining a predetermined pattern, the first backing layer defining one or more indentations through each of which an adhesive coated onto the upper surface of the first backing layer may flow onto a predetermined area of the upper surface of the second layer when the first backing layer is provided on the upper surface of the second backing layer, the method comprising the steps of:
- providing the first backing layer on the upper surface of the second backing layer;
- coating the adhesive onto the upper surface of the first backing layer and the predetermined areas of the second backing layers;
- separating the first and second backing layers so as to define the predetermined patterns on the upper surface of each of the first and second backing layer.
A wound dressing comprising an absorbent core, a vapour permeable but liquid impermeable backing film with discrete gel zones/particles, and a liquid permeable film with an interconnected layer of adhesive on the wound facing side, wherein the liquid permeable layer covers at least partly the core area.
Dependencies are inferred from the claim text.