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Coir or coconut fiber belongs to the group of hard structural fibers. It is an important commercial product obtained from the husk of the coconut. Industries based on coir have developed in many coconut producing countries especially India, Tanzania, Kenya, Bangladesh, Burma, Thailand, Sri Lanka, Nigeria, Ghana etc.
Kapok/Capok fiber is one of the natural cellulosic fibers which grow on the kapok plant. It has a hollow body and a sealed tail, which are desirable features of candidates for functional textiles of this nature. However, the low volume weight of kapok is (specific density 0.29g/cm3), and the short length and smooth surface of the fibers, causing poor inter-fiber cohesion, have prevented kapok from being processed by modern spinning machines.
Cellulose is the substance that makes up most of a plant’s cell walls. Since it is made by all plants, it is probably the most abundant organic compound on Earth.Many varieties of plant fibers exist such as hairs (cotton, kapok), fiber-sheafs of dicoltylic plants or vessel-sheafs of monocotylic plants (e.g. flax, hemp, jute, and ramie), and hard fibers (sisal, henequen, and coir), not to mention a large number of fibers obtained from trees.
Cotton fiber is a soft staple fiber that is grown in a form known as a boll around the seeds of the cotton plant, a shrub native to tropical and subtropical regions.
Cellulose is a fibrous material of plant origin and the basis of all natural and man-made cellulosic fibers. The natural cellulosic fibers include cotton, flax, hemp, jute, and ramie. Cellulose is a polymeric sugar polysaccharide) made up of repeating 1,4-8-an hydro glucose units connected to each other by 8-ether linkages. Strong intermolecular forces between chains, coupled with the high linearity of the cellulose molecule, account for the crystalline nature of cellulosic fibres.