unit 2: Laminations

• 1st Layer of Polyethylene


  Protects from outside moisture
• Paperboard


  • Provides stability, strength and smoothness to the printing surface
• 2nd Layer of Polyethylene


  Acts as an adhesive layer between other layers
• Aluminium foil


  • Protects against oxygen and light to maintain the nutritional value and flavours of the food in the package in room temperatures
  • Forms a barrier against light and oxygen, eliminating the need for refrigeration and preventing spoilage without using preservatives
• 4th Layer of Polyethylene


  Acts as an adhesion layer, enables the paperboard to stick to the aluminium foil
• Last Layer of Polyethylene


  Seals the Liquid from inside
• What is a TETRA PACK


  Tetra pack is known as an aseptic cartons -> for liquid food items