Natural fibers are hairlike raw materials obtained directly from vegetable, animal, or mineral sources. They are categorized by their origin into three main classes: (cellulosic), animal-based (protein), and mineral-based fibers. Historically utilized for millennia, natural fibers are valued for being renewable, biodegradable, and lightweight. Classification of Natural Fibers
A Review of Natural Fibers: Classification, Composition ... - MDPI