Paper sacks are usually made of Kraft paper having the advantage of being soft and strong at the same time. The stretch or elongation increases the energy required to break the material. They easily carry and protect products up to 50 kg, and adapt easily to the nature of their contents and to handling constraints. At the same time sacks are provide an excellent media for promotional messages and sophisticated printing designs.
Paper sacks capacity is variable, each country sets a maximum ground rules such as job security, it comes in a variety of calipers, basis weights, and treatments.