What application is flexible packing pouches invented for?

Flexible packaging pouches, including stand up water pouch, side gusset pouch, block bottom box pouch, and kraft paper bag, are made of polymer or paper laminates films. They can be used for food and non-food packages, from the dry fill of granule, particulate, powder, flour to liquid including wines, spirits, beverage, milk, and non-food packaging of fertilizer, detergent, toiletries.