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Sisal Fiber is one of the most widely used natural fiber and is very easily cultivated. It is obtain from sisal plant. The plant, known formally as Agave sisalana. These plants produce rosettes of sword-shaped leaves which start out toothed, and gradually lose their teeth with maturity. Each leaf contains a number of long, straight fibers which can be removed in a process known as decortication. During decortication, the leaves are beaten to remove the pulp and plant material, leaving the tough fibers behind. The fibers can be spun into thread for twine and textile production, or pulped to make paper products. 

Sisal fiber is fully biodegradable, green composites were fabricated with soy protein resin modified with gelatin. Sisal fiber, modified soy protein resins, and composites were characterized for their mechanical and thermal properties. It is highly renewable resource of energy. Sisal fibre is exceptionally durable and a low maintenance with minimal wear and tear. Its fibre is too tough for textiles and fabrics. It is not suitable for a smooth wall finish and also not recommended for wet areas.

The fine texture of Sisal takes dyes easily and offers the largest range of dyed colours of all natural fibres. Zero pesticides or chemical fertilisers used in sisal agriculture. It is a stiff fiber traditionally used in making twine, rope and also dartboards Sisal fiber is manufactured from the vascular tissue from the sisal plant (Agavesisalana). It is used in automotive friction parts (brakes, clutches), where it imparts green strength to performs, and for enhancing texture in coatings application. 

Properties of Sisal Fiber: 
Sisal Fiber is exceptionally durable with a low maintenance with minimal wear and tear.
It is Recyclable.
Sisal fibers are obtained from the outer leaf skin, removing the inner pulp.
It is available as plaid, herringbone and twill.
Sisal fibers are Anti static, does not attract or trap dust particles and does not absorb moisture or water easily.
The fine texture takes dyes easily and offers the largest range of dyed colours of all natural fibers.
It exhibits good sound and impact absorbing properties.
Its leaves can be treated with natural borax for fire resistance properties. 

Chemical Composition of Sisal Fiber:

Cellulose: *5%
Hemicelluloses: *2%
Lignin: 9.9%
Waxes: 2%
Total: **0%

Uses/Application of Sisal Fiber: 
From ancient times sisal has been the leading material for agricultural twine because of its strength, durability, ability to stretch, affinity for certain dyestuffs, and resistance to deterioration in saltwater. 
Sisal is used commonly in the shipping industry for mooring small craft, lashing, and handling cargo.
It is also surprisingly used as the fibre core of the steel wire cables of elevators, being used for lubrication and flexibility purposes. Traditionally sisal was the leading material for agricultural twine or baler twine. Although this has now been overtaken by polypropylene.
It is used in automobile industry with fiberglass in composite materials.
Other products developed from sisal fiber include spa products, cat scratching posts, lumbar support belts, rugs, slippers, cloths and disc buffers.
Sisal is used by itself in carpets or in blends with wool and acrylic for a softer hand.