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Our Dureflex® Brand Films and Sheets are highly applicable to a variety of secondary processing options. The variety of secondary processes performed on our Polyurethane films and sheets include value-added processes that impart functionality in a broad range of ultimate end uses. Some of the more popular secondary processes performed on Polyurethane films and sheets include lamination, thermal bonding, thermoforming, and welding, in addition to processes designed to create various decorative effects.
Prominant Laminating processes include glass, adhesive, flame and thermal.
Glass Lamination: This lamination process involves using special aliphatic Polyurethane sheet layers to bond polycarbonate sheet to glass for manufacturing security or safety glass (i.e. bulllet-proof glass, hurricane windows, etc.).
Hot Melt Processing Options
Laminating with thermoplastic adhesives employing either a Powder Dot System or Paste Dot System - for manufacturing of technical textiles from woven, nonwoven or knitted fabrics. Laminating with solvent-based or crosslinking hot melt systems employing the Scattered Spray Coating method for manufacturing medical textiles, foam laminates, membranes, etc. Laminating with Hot Melts (crosslinking systems): Screen Print Coating is an application of the hot adhesive by means of a rotary screen for delicate thin films. It is effective in the manufacture of breathable sportswear, rainwear and protective clothing, etc. Melt Print Coating is an application of the adhesive by means of an engraved roller for textiles, foams and films and is effective in the manufacture of medical textiles, foam laminates, membranes, etc.
Flame Lamination Process:
The Flame Lamination process is effective for manufacturing of such products as noise dampening devices, motor insulation, or carpeting. This foam coating process is preferred for simple part design.
Thermal Bonding Process:
Thermal bonding has proven most effective in the production of emblems, labels, and a variety of specialized medical applications.
Prominent Thermoforming processes include vacuum forming, match mold forming, pressure forming, foam-in-place.
Vacuum Forming Process: Vacuum forming has proved value in batch production for manufacturing complicated shapes (i.e. packaging, storage trays, architectural constructs, medical products, etc.)
Foam-in-Place Process: Special grades of our Dureflex® Polyurethane films are used in foam-in-place processes to form foam-filled components including seat cushions, headrest, armrest, and shoe insole inserts.
more on Secondary Processes
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