Flexible Packaging Applications
Dry Bond Lamination
Dry bond laminating is the process of coating an adhesive (typically by a gravure application cylinder) to a substrate, drying the adhesive with heat and air flow and then laminating the adhesive to a second substrate via a heated compression nip. H.B. Fuller offers both high performance polyurethane dispersions and economic acrylic emulsions to meet a wide range of price and performance requirements. In addition, our patented dispersible isocyanate and polyfunctional aziridine crosslinkers enable the waterborne adhesives to meet the demanding performance criteria when a lamination is subjected to extremes of heat and humidity. Our products have significantly narrowed the performance gap between solvated and waterborne dry bond laminating adhesives.
Solventless Laminating
Solventless laminating is the process of metering a low viscosity adhesive onto a multiple application roll configuration that applies the adhesive to a first substrate, which is then mated to a second substrate via a heated nip. H.B. Fuller offers a complete line of products ranging from the single component First Generation products to the high performance aliphatic isocyante based Third Generation products. Our products perform on a wide variety of substrates offering high bond strength and excellent heat, humidity and chemical resistance.
Hot Melt Heat Seal Gravure Coating
Hot melt gravure coatings are low viscosity hot melt adhesives that are applied to film or paper via a heat roto-gravure cylinder. Hot melt gravure adhesives enable low adhesive coating weights to be achieved for a variety of applications including lid stock, in-mold labels and graphic overlays. Our products perform on a wide variety of film and paper substrates offering high bond strength and excellent economics.
Hot Melt Heat Seal Extrusion Coating
Extrusion grade hot melt adhesives are high viscosity products typically extruded through a slot-die and are designed for applications requiring high adhesive coating weights. Typical applications include lid stock, over wraps and fold-over blister packs. Our products perform on a wide variety of film and paper substrates offering high bond strength and excellent economics.
Synthetic Cohesives Coating
Cohesives (cold seals) are products used for applications where the bond between two substrates is formed without any heat, only pressure. Synthetic cold seals are based on synthetic rubber as opposed to natural rubber based cold seals. Natural rubber based products have been associated with allergic reactions in persons sensitive to these types of compounds. Used primarily for medical bandage packaging, our synthetic cold seals perform well on a wide variety of film and paper substrates offering high bond strength and excellent economics.
Wet Bond Laminating
Wet bond laminating is the process of coating an adhesive (typically by a gravure cylinder or smooth roll) to a substrate, then laminating to a second substrate via a compression nip followed by drying the lamination with heat and airflow. One of the substrates must be paper or paperboard in wet bond laminating process, allowing the water to be completely removed from the lamination. H.B. Fuller offers a complete range of water based polymers to meet a wide range of price and performance requirements.
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