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Assignee3M Innovative Properties Company
InventorsFrederic Pierre Alain Le Riche, Don Everett Branch, Gregory Francis Stifter, Kim Kiyoko Tsujimoto, Mark Steven Vogel
Estimating the term…
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).
An apparatus for applying a coating material to both major surfaces of a sequence of sheets, comprising:
An apparatus for applying a coating material to a first major surface of a sequence of sheets, comprising:
An apparatus for applying a coating material to a first major surface of a sequence of sheets, comprising:
A method for applying a coating material to sheets, comprising:
An apparatus for applying a coating material to both major surfaces of a sequence of sheets, comprising:
An apparatus for applying a coating material to both major surfaces of a sequence of sheets, comprising:
Dependencies are inferred from the claim text.