Laminated film in roll form is used wherever there is an automatic packing machine (FFS machine - Form, Fill and Seal) is used instead of manual packing. Using this reduces the cost of packing a great deal. Instead of weighing the product for each pouch, filling it and then sealing it, the machine does it in a few seconds at a fraction of the cost.
The roll form can be of any specification but mostly it is Pet/Poly structure. Some of the products that are packed automatically are Flour, Masala, Oil, Milk, Industrial Items, Snacks/Savouries, Rice, Dhall, and a lot more.