3m Innovative Properties Company

Don Everett Branch

Mark S Vogel

Bernard Raymond Pierre

Frederic Pierre Le Riche

Kim K Tsujimoto

Gregory Francis Stifter

Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder ( ), in end-to-end overlapping relationship, to a dual coater ( ) in which the sheets are coated individually on both sides. A sheet inserter ( ) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder ( ). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station ( ) where stripes ( ) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt ( ).

Apparatus and method for applying coating materials to individual sheet members

Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets, The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).

Growing community of inventors

Neuilly sur Seine, France

Don Everett Branch