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.