Method of attaching grip tabs to the carrier layer of a film dressing

摘要

A method is provided to attach a grip tab along an edge of a carrier layer of a film dressing web, which includes a film layer coated with adhesive on a first side and a carrier layer releasably attached to the film layer on an opposed second side. The method includes choosing a material for the carrier layer that is heat welding incompatible with the film layer, feeding the web in a machine direction, applying a first strip of a material that is heat welding compatible with the carrier layer along part of an edge portion of the web extending parallel to the machine direction, and affixing the first strip to the carrier layer while simultaneously cutting away an outermost part of the web with the first strip applied thereto by passing the web through an ultrasonic welding device.

主权项

1. A film dressing comprising:
a film layer on a first side coated with adhesive; a carrier layer releasably attached to the film layer on a second side thereof being opposite to the first side; a release layer releasably attached to the adhesive coating; and a first grip tab being affixed to an outer first edge of the carrier layer by a first welded seam having its outermost part in line with the outer first edge of the carrier layer, wherein the first welded seam has a width that is less than 1 mm, wherein the first grip tab extends inwardly over the carrier layer from the outer first edge of the carrier layer, wherein at least a portion of the first grip tab extending inwardly over the carrier layer is not affixed to the carrier layer, wherein the film layer, the carrier layer and the release layer have dimensions that are the same.