what are the chemical properties of wool?
['Color: The color of wool fiber could be white, near white, brown and black.', 'Tensile Strength: The tensile strength of wool in dry condition is 1 – 1.7 and 0.8 – 1.6 in wet condition.', 'Elongation at break: Standard elongation is 25 – 35% and 25 – 50% in wet condition.']