Table 1.

Main physical properties of soy protein (SP), chitin, and coir fibers.

Properties	SP Fiber	Chitin Fiber	Coir Fiber
Density (g/cm3)	1.29	1.43	1.40
Fiber length (mm)	38	37–39	50–150
Linear density (dtex)	0.9–3.0	1.57–1.77	-
Tenacity (g/tex)	38.8–40.8 *	23.4–27.5	10.0
Elongation at break (%)	18–21 *	18–22	30
Moisture content (%)	8.6	< 20	8

* dry properties.