Patent ID: 6576080
Filing Date: 2003-06-10
Classification: B32B,B65H,Y10T

Abstract:
A method for applying adhesive to a side edge portion of a selected substrate, said method comprising:providing a selected substrate to which adhesive is to be applied; providing an adhesive transfer device comprising: a frame having a feeding side and discharge side; a first supply roll rotatably mounted to said frame, said first supply roll carrying a wound up supply of an adhesive carrying substrate that has an adhesive carrying surface coated with a layer of pressure-sensitive adhesive; a second supply roll rotatably mounted to said frame, said second supply roll carrying a wound up supply of an adhesive mask substrate; pressure applying structure constructed and arranged to apply pressure to substrates being advanced through said device; and said frame having a substrate receiving opening extending from the feeding side thereof to the discharge side thereof and opening to an exterior of said frame, the pressure applying structure being aligned with the substrate receiving opening and the first and second supply rolls being located on opposing sides of said substrate receiving opening to enable a corner portion of the selected substrate at which a leading edge portion and the side edge portion of said selected substrate intersect to be inserted between said adhesive carrying and mask substrates and into the pressure applying structure; inserting the corner portion of the selected substrate between said adhesive carrying and mask substrates with a portion of the selected substrate extending outwardly from said opening; and advancing said mask substrate, said adhesive carrying substrate, and the side edge portion of said selected substrate together through said device and outwardly from the discharge side of said frame with said pressure applying structure applying pressure to said substrates, thereby causing the pressure-sensitive adhesive on said adhesive carrying substrate to bond to the side edge portion of the selected substrate.