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Lamination with Film SubstratesHot roll and belt lamination use heat and pressure as their means of bonding. The Dow Chemical Company's (Dow) adhesive films to your desired substrate. As shown below, the adhesive film and substrate are drawn onto heated rollers where the materials are heated and pressed together. The heat activates the adhesive film, creating a bond when pressed against the substrate material. Hot roll and belt lamination of Dow's engineered adhesive films allow for continuous in-line lamination and an even distribution of adhesive. With your needs in mind, Dow has developed a portfolio of products that bond to a variety of substrate materials. Dow's adhesive films are composed of thermoplastic polymers that allow them to be reheated and molded in subsequent operations.
Flame lamination is often used to bond film and/or fabric to soft polyurethane foams. The process, shown below, involves the passing of the soft foam over an open flame, which creates a thin layer of molten polymer. The film and/or fabric are quickly pressed against the foam while it is still in the molten state. The strength of the bond depends upon the film, fabric and foam selected and the processing conditions (i.e., gas type, flame height and spread, foam burn-off and nip pressure). Flame lamination is a continuous process that, depending on the equipment, adheres fabric or film to one or both sides of the foam in a single pass. Using The Dow Chemical Company's (Dow) engineered adhesive films in your flame lamination process will provide an opportunity for an even distribution of adhesive.
Calender lamination of The Dow Chemical Company's (Dow) engineered adhesive films allows for continuous in-line lamination and provides an opportunity for an even distribution of adhesive. Calender lamination, similar to hot roll lamination, uses a heated three-roll stack to heat and activate Dow's adhesive films. The adhesive film and substrate, shown below, are drawn into a stack of heated rolls where the film is heated, activated and applied to the substrate. Material selection is critical in providing a strong, long-lasting bond between the film and the substrate. That's why we encourage you to STICK WITH US™ and work with Dow's adhesive films team for your dry adhesive needs.
Thermoplastic polymers are often extruded into a sheet for subsequent forming/processing. The Dow Chemical Company's (Dow) engineered adhesive films allow for in-line lamination and even distribution of adhesive in your extrusion process. The polymer sheet, shown below, is extruded and then brought into contact with the adhesive film. The residual heat from the extruded sheet activates the adhesive. The strength of the bond depends upon material selection and processing conditions. That's why when you STICK WITH US™ Dow will work with you to determine the best combination of materials for your processing conditions.
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