Reinforcements for Flexible Laminates Presented by Shrikant Athavale on 30-10-2010.
THE PROCESS - FLEXIBLE PACKAGING MATERIAL It has already been established that the use of flexible packaging for different products has many a distinct advantages. The most commonly used materials as substrates or layers for such applications are: <ul><ul><li>Polyester Films. </li></ul></ul><ul><ul><li>LD/HD Films. </li></ul></ul><ul><ul><li>BOPP Films. </li></ul></ul><ul><ul><li>LDPE, LLDPE, HDPE, ETC. </li></ul></ul><ul><ul><li>Metallized PET AND PP films. </li></ul></ul><ul><ul><li>PVC films. </li></ul></ul><ul><ul><li>Aliminium Foil. </li></ul></ul><ul><ul><li>Paper. </li></ul></ul>
Besides, the following raw materials are also required : Adhesives. Solvents. Inks. Hardener, etc.
<ul><li>The applications of Flexible Laminates </li></ul><ul><li>We find these flexible laminates are being used for various applications , such as </li></ul><ul><li>For Flexible packaging </li></ul><ul><li>For sealing </li></ul><ul><li>For Insulation – Thermal , Electrical </li></ul>Due to some specific requirements these laminates could need some extra strength , without sacrificing the flexibility And hence some reinforcements are necessary While constructing the specialty laminates
Reinforced Flexible laminates for For Flexible packaging Examples Reinforced Paper Envelops Reinforced paper bags
Reinforced Envelop Reinforced Envelop Woven Sack and Paper Laminate
Reinforced Film Laminate Reinforced Film Laminate
Reinforced Flexible laminates for For Insulation – Thermal , Electrical Thermal Insulation Tape With FSK Alu Glass Uni and bi directional Tapes Electrical Insulation Laminates
Various types of reinforcements are <ul><li>A laid scrim looks like a grid or lattice. It is made from continuous filament products (yarns). Kirson produces rectangular scrims exclusively. In order to keep the yarns in the desired right-angled position it is necessary to join these yarns together. In contrast to woven products the fixation of the warp and weft yarns in laid scrims must be done by chemical bonding. Scrims are used to reinforce many different materials and products. </li></ul>SCRIMS
Case Liners case liners: Heavy duty moisture proof case liners, interleaving and wrapping Two direction reinforcing fibres for tear and puncture resistance Bitumen core assists self seal around staples Condensation resistant kraft surface
• Two layers flexible laminate Polyester film+presspaper • Class E insulation (120℃) UL recognition • High mechanical strength and excellent dielectric property • As slot, interturn and liner insulation Electrical Insulation laminates Three layers flexible laminate Inner layer: Mylar Outer layers: Nomex paper • Class F insulation (155℃) UL recognition • High mechanical strength and good compatibility with insulation varnish • As slot, interturn and liner insulation
Moistop Barrier Foils Moistop barrier foils are highly technical laminates designed to provide the strength and protection required for the packing of moisture sensitive objects, foodstuffs and bulk chemicals. Please see below products in the range, and for further information, contact us using the details at the bottom of the page.
Reinforced Bitumen Laminate, Black Polyethylene Coated is a bitumen bonded wet-strength kraft paper laminate reinforced with a glass multifilament fibre scrim, coated on one face with a black polyethylene coating. It is a heavy duty product used in demanding end-uses such as lidding export cases and for protecting industrial components where a water shedding surface is desirable. Construction It is a flexible, tough material with one face of unbleached (brown) paper, the other with a black polythene coating, reinforced with a regular, grid pattern reinforcing.
Bubble wrap is the trademarked name for a packing material consisting of two plastic sheets laminated together in a way that traps air bubbles in small, uniform pockets. This plastic sheet assembly is used as a flexible cushion to protect fragile objects during storage or shipping. The name Bubble wrap is registered by Sealed Air Corporation of Saddle Brook, New Jersey, however the name has become synonymous with the packaging material itself. Similar materials are known in the industry as cushioning laminates.
Aluminium Glass Cloth Lam Alu Foil Scrim Kraft Paper lam