The origin of kraft paper

Long ago, "kraft paper" was really made of calf leather. Of course, this kind of "kraft paper" is now only used when making drum skins; Kraft paper is a kind of high-strength packaging paper made of cork kraft pulp, which has tough texture, high strength and yellowish brown paper surface. It can be divided into single-sided luster, double-sided luster, striped and non-striped, and its quality requirements are slightly different. Kraft paper is mainly used to make small paper bags, document bags and inner packaging of industrial products, textiles and daily necessities.