Kraft Paper Definition: Kraft paper is paper or paper board produced from chemical pulp produced form chemical pulp natural Kraft Paper is the strongest of the common packaging paper and is used when maximum strength is required, Such as in industrial bags, grocery bags, inner plies of multiwall sacks, or plain wrapping paper, Kraft paper is food grade packaging materials made from either wood pulp or through the processing of agro based material that has zero risk of contamination.