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Lamination Adhesive of the binder component depends on […]
Lamination Adhesive of the binder component depends on the two surfaces to be laminated. The strength of the laminated bond depends on the combination of cohesive strength and adhesive strength of the adhesive. The cohesive strength is affected by the Tg and elongation, while the bond strength is affected by wetting and interfacial bonding forces.
Many kinds of materials can be laminated, such as paper, polyester film, polyethylene film, metal foil and fabric and paper or film / wood, film / film, paper / foil and other different combinations. After lamination, various properties of the material may be imparted. Most users of radiation-curable adhesives use continuous rolls of material. UV or EB laminating adhesives can be formulated for a wide range of viscosities at 100% solids to suit a wide range of coating equipment.
Specifically developed polyester acrylate, polyurethane acrylate and epoxy acrylate can be used as the main component of the production of various adhesives to meet different practical requirements. Some substrates, such as polyethylene, are difficult to laminate, as with conventional methods, using radiation curable adhesives, but the development of laminating adhesives suitable for such films does not present an insurmountable difficulty for the adhesive manufacturer. If the use of EB curing laminating adhesive, pipeline speed can reach 300m / min.
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