Specialized packaging equipment known as “lined carton machines” is used to fill and seal small carton boxes that have an inner liner. This liner is usually made of heat-sealable material to protect against moisture and contamination. The carton is automatically erected, the liner is inserted, products such as powders, granules, liquids, detergents, spices, tea, or coffee are filled, the pack is folded, sealed, and released. By guaranteeing airtight, long-lasting packaging at speeds of 15–50 cartons per minute, depending on the model, they improve efficiency in sectors like food, pharmaceuticals, and consumer goods.