COMBINED SYSTEM FOR MANUFACTURING BLOWN FILM WITH SIMULTANEOUS COEXTRUSION OF LONGITUDINAL REIG METHOD THEREOF

    公开(公告)号:WO2020128846A1

    公开(公告)日:2020-06-25

    申请号:PCT/IB2019/060940

    申请日:2019-12-17

    摘要: A combined system for manufacturing blown film (2) with simultaneous coextrusion of coatings and industrial manufacturing method thereof with subsequent steps of perforating (13, 14 26, 28) the film (2) and packaging (23) thereof in lengths or masses predefined according to the purchase order. A dedicated and innovative management software for commanding and controlling the entire process, couples in sequence the known process for manufacturing the blown polyethylene film (2) with the process for manufacturing the reinforcements or coatings, together with the steps of perforating the film, centrally (13, 26) and laterally (14, 28) and/or in the areas intermediate thereto, correspondingly packaging (23) it in lengths or masses predefined according to the purchase order, said manufacturing steps being now even more easily executable centrally and laterally without having to perform subsequent and discontinuous processing steps, minimizing waste and energy consumption, allowing the traceablility of the final product, as well as completely eliminating offcuts.