大麻
Hemp fibre is derived from the hemp sativa plant species,
grown mainly for industrial uses. Hemp is an annual
herbaceous fast-growing plant, having cheap and strong
natural bast fibres. Durable, stiff and lightweight are the
attributes of hemp fibers which make them attractive not only
for composite materials and wool insulation but also as
chelating materials.The major application areas of hemp fibers
are textiles, construction, paper, composites, and animal
bedding. The height of the hemp plant is generally more than
3 m. Hemp is a coarser fiber with dark color and therefore
more challenging to bleach compared to cotton. The length of
hemp fibre is generally up to 2 m. The shape of the hemp fiber
is cylindrical ,having joints and cracks on the fibre surface
45 日