METHOD FOR EXTRUSION COATING MULTIPLE WEBS

摘要

A method for extrusion coating multiple webs by an extrusion system having multiple extrusion stations 34, 50. The method includes an initial step of providing a first web 10 and a second web 12 wherein each web has a coating side and an underside. The webs are temporarily joined to fom a composite web 32 wherein the respective coating sides face outward and the respective undersides face one another. A first polymer coating 36 is extruded on the coating side of the first web 10 at a first extrusion station 34. Subsequently, a second polymer coating 52 is extruded on the coating side of the second web 12 at a second extrusion station 50. The extrusion coated first and second webs are then separated.