![\"Vishbarr](\"https:\/\/staging.project-in-progress.com\/vishakha\/wp-content\/uploads\/2020\/03\/vishbarr-5-layer-barrier-film-300x200.jpg\")
Production Techniques<\/strong><\/p>\n To produce the suitable package, a thin layer of plastic materials is extruded and then bonded to another layer of dissimilar material. Different materials are selected so as to match various packaging properties. For example one layer may be selected to provide high mechanical strength while the other layer may provide great barrier and sealing properties. These materials are then bonded using an adhesive. The co-extrusion process may involve many layers being extruded and bonded together.\u00a0 The main production techniques involve dry bonding, wet bonding, ultraviolet curing and thermal adhesion process.<\/p>\n Laminating Adhesives and Applications<\/strong><\/p>\n The laminating adhesive plays an imperative role in bonding the laminates. In addition to its bonding ability, the adhesive must have other superior characteristics such as chemical (mixing ratio, shelf life and curing time), physical (density, molecular weight, viscosity drying speed and wetting behavior) and performance (bonding strength, resistance to environmental process, and resistance to corrosion, adaptability and laminating conditions).<\/p>\n Suitability for Different Packaging Materials<\/strong><\/p>\n Laminated film<\/a>\u00a0is suitable for different packaging processes. By adding different coextruded layers, it is possible to alter the film properties such as decreased gas\/ oxygen permeability, puncture resistant,\u00a0 resistance to heat, water and solvent proofing, superior optical properties, electrical insulation or conductivity, anti fog properties and ability to resist oil as well as chemical attack.<\/p>\n 3 Layer Co-Extruded Lamination Films<\/strong><\/p>\n These are low strength films with have three layers of 2 or 3 dissimilar materials bonded using different configurations. For two materials the arrangement can be ABA or AAB depending on use.\u00a0Lamination Films<\/a>\u00a0are cheaper and provide adequate packaging for food, shampoos, snacks, detergents and edible oils.<\/p>\n 5 Layer Co-Extruded Lamination Films<\/strong><\/p>\n These are medium strength laminates that use special adhesives to increase strength. They are applied in packaging chemicals, soap, industrial products, medical and pharmaceutical products and hot filling juices. They comprise of five different layers of brown extrusions that are joined using adhesives. They can be EVOH based 5 layer films. They are used to create barrier from water, gas, aroma and flavor. They are resistance to chemicals, cracks, UV and are easily printable. They are also used in packaging reactive materials such as fruits and meat this can discolor the package.\u00a0 Since some film prevent aroma loss, the film can be used to pack spices, juice, toothpaste and juice. Special films also allow packaging of pesticide and fungicides.<\/p>\n 7 And 9 Layer Co-Extruded Lamination Films<\/strong><\/p>\n 7 and 9 layers films offer extensive advantages and replace aluminum packaging which is expensive. The different layers provide great sealing and properties such as oxygen, gas and carbon dioxide barrier; transparency, odors, high strength; easy printability, water proofing among others. They are used for packaging refrigerated products such as meat, poultry, cheese and unrefrigerated products such as powder milk, nuts, pet food and wine.<\/p>\n![\"A](\"https:\/\/staging.project-in-progress.com\/vishakha\/wp-content\/uploads\/2020\/07\/a-wide-range-of-printed-lamination-films-300x300.jpg\")
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