Process for on-line lamination of plastic

摘要: A corrugated paperboard, manufactured with a layer of plastic film approximately 1-3 mil thickness, is laminated to the single face liner board in double-backer. The has good moisture vapor transmission (MVT) properties for packaging food and chemical products. supplied roll form reeved over dewrinkling device smooth it, then fed onto as into nip lamination made by residual heat from paper pressure double-backer belt drying section corrugator without adding adhesives or other compounds. thermoplastic co-extruded polymeric film, e.g. high density polyethylene (HDPE), polypropylene, PET, having seal thereon copolymer olefin Alpha-Beta monoethylenically unsaturated monomer, e.g., ethylene acrylic acid (EAA). surface may be optionally treated Corona discharge velocity flame treatment oxidize enhance adhesive bond later prepared cartons board. process applicable wall multiwall paperboard making barrier product MVTR.