Regenerated fibers are some'mes known as man‐made fibers. These are fibers that have been created artificially. they are used in making textiles and various other purposes.

1. REGENERATED TEXTILE
FIBERS
LIKITHA PRAKASH

2. 5 New Regenerated fibers
SPECTRA FIBER
EEL FIBER / HAGFISH FIBER
CHITOSAN
VECTRAN
TECHNORA

3. SPECTRA FIBER

4. A highly processed ultra-high molecular weight
polyethylene, Spectra is stronger and lighter than
most commercial high-modulus fibers and has one
of the highest strength to weight ratios of any man-
made fiber.
A bright white polyethylene, it is 15 times stronger
than steel, more durable than polyester and has a
specific strength that is 40% greater than aramid
fiber. With outstanding toughness and extraordinary
viscos-elastic properties, Spectra fiber can withstand
high load strain rate velocities.

5. Properties of Spectra Fiber:
• 15 times stronger than steel by weight
• Alight enough to float
• Does not corrode
• Excellent abrasion resistance
• Excellent flex and bending fatigue performance
• Very good UV resistance
• Excellent cut resistance
• Excellent fungal growth resistance
• Low dielectric constant makes it virtually transparent to
radar
• Low coefficient of friction

6. Spectra fiber is engineered for a wide variety of
applications, including:
Rope and Cordage: rope, industrial and aquaculture netting,
slings and tethers
Recreation: fishing lines, bow strings, parachute cords,
racket strings and sail cloth
Cut Resistance: gloves, aprons, sleeves and sporting
apparel
Specialty Applications: space materials, dental floss,
security barriers and
storm protection

7. Spectra fiber is at work on some of the world’s toughest
projects:
• Slings made with Spectra fiber were used to lift 2.6 million-
pound sections of the new San Francisco-Oakland Bay Bridge
• Spectra fiber is trusted by sport fishing’s leading professional
anglers, where the performance and durability of the fiber helps
them succeed in the biggest tournaments
• Storm curtains made with Spectra fiber are certified to
withstand winds of up to 175 miles per hour, the equivalent of a
Category 5 hurricane
• The U.S. military uses high-strength rope made with Spectra
fiber on the V-22 Osprey tilt-rotor aircraft for fast rope insertion
operations

10. EEL FIBRE /
HAGFISH
FIBER

11. Hagfish are primitive, eel-like creatures that spend most
of their lives slithering along the ocean floor, scavenging
dead and dying fish. They’re spineless, virtually blind,
have no jaws and have barely changed over the last 300
million years.
So what makes them so special?
hagfish have a sticky trick up their sleeves. When
attacked or threatened, they exude a gelatinous slime
into the water that can quickly smother the gills and
mouth of a predator, thwarting the attack.

12. The result is a kind of slimy, viscous region around the
hagfish that some marine biologists think serves as a
defensive mechanism. Certainly predators, such as sharks,
that try to bite or swallow the hagfish are quickly convinced to
back off.
The slime is composed of thread-like fibers.
When you stretch the fibers in water and then dry them out
they take on properties that are very silk-like
Hagfish fibers are incredibly thin and extremely strong.

17. CHITOSAN

18. Chitin/Chitosan has a chemical structures very similar to that of
cellulose. such as cotton and rayon.
• Chitin is the natural polysaccharide biologically produced by
living creatures on the earth in huge quantities. Its
production is next to the cellulose, which is biologically
produced by plant. It is estimated that total production of
Chitin on the earth annually is about 1 to 100 billion ton.
• Chitin/Chitosan is a white and porous polysaccharide that

19. b) mushrooms like shiitake and enokidake and c) cell wall
of fungi.
• It is also estimated that about 150'000 tons of Chitin is
available for commercial use annually. However. only a
few thousand tons are actually used in the world.
• As long as Chitin is a natural substance included in food
such as crabs, shrimps, mushrooms etc it is quite a safe
material. Its safety has been verified scientifically through
many tests.

20. Properties and efficacy of Chitin/Chitosan
Flocculation :Purifies waste water
Heavy metal adsorption :Adsorbs and removes radioactive
substances
Biodegradation :Being organic material, the chitin/chitosan is
degraded by micro organisms
Antimicrobial activity :Inhibits bacterial growth
Immunization :Enhances the body's immunity to disease
Cell activation :Promotes Iysozyme secretion
Body activation :Accelerates wound healing
Acceleration of skin tissue regeneration :Thin non-woven
fabric is successfully applied to burns.
Salt adsorption :Lowers high blood pressure

21. Usage
Agricultural and horticultural use :
The agricultural and horticultural uses for chitosan, primarily
for plant defense and yield increase, are based on how this
glucosamine polymer influences the biochemistry and
molecular biology of the plant cell.
Natural biocontrol :
agriculture, chitosan is used primarily as a natural seed
treatment and plant growth enhancer, and as an ecologically
friendly biopesticide substance that boosts the innate ability of
plants to defend themselves against fungal infections.

22. Water filtration :
Chitosan can also be used in water processing
engineering as a part of a filtration process. Chitosan
causes the fine sediment particles to bind together, and is
subsequently removed with the sediment during sand
filtration. It also removes phosphorus, heavy minerals, and
oils from the water.
Biomedical uses :
Chitosan's properties allow it to rapidly clot blood, and has
recently gained approval in the United States and Europe
for use in bandages and other hemostatic agents.

26. VECTRAN

27. Vectran is a high-performance multifilament yarn spun from
liquid crystal polymer (LCP). It is the only commercially
available melt-spun LCP fiber in the world. Vectran fiber
exhibits exceptional strength and rigidity. Pound for pound,
Vectran fiber is five times stronger than steel and ten times
stronger than aluminum.
Vectra LCP engineering polymer is used by the industrial
textile and fabric industry for fibers that stand up to
temperature exposure, chemical and wear resistance,
abrasion resistance and low moisture absorption. Vectra
LCP is easy to process without sacrificing heat resistance
and mechanical strength. Multi-filaments, fibers and non-
woven made from Vectra LCP can be used in a wide variety
of applications and markets.

28. Properties of Vectran
• High strength and modulus
• Excellent creep resistance
• High abrasion resistance
• excellent flex/fold characteristics
• Minimal moisture absorption
• Excellent chemical resistance
• Low coefficient of thermal expansion (CTE)
• High dielectric strength
• Outstanding cut resistance
• Excellent property retention at high and low temperatures
• Outstanding vibration damping characteristics
• High impact resistance

29. Applications:
• Helicopter sling legs
• Astronaut Safety tethers
• Aerial Camera Tethers
• Balloon Tethers
• Helicopter Rescue Ropes
• Tow Ropes
• Cargo tie-downs
• Running rigging
• Standing Rigging
• Mountaineering ropes
• Parachute cords

32. TECHNORA

33. Technora is a para-aramid fiber made from co-polymers and
produced from poly-paraphenylene terephthalamide (PPTA). It
was independently developed by Teijin and has been
commercially available since 1987.
This high performance fiber has a range of excellent properties,
including high tensile strength, good fatigue resistance, long-
term dimensional stability and good resistance to corrosion,
heat, chemicals and saltwater.

34. Properties of Technora
• Very High Tensile Strength
• Tenacity and Fatigue Resistance
• Dimensional Stability
• Modulus, Creep and Stress Relaxation
• Temperature Resistance
• Resistance to Chemicals and Others
Applications with Technora
• Due to its excellent properties, Technora is appreciated
and used in a variety of industries.
• Technora in Composites
• Technora in Mooring Ropes
• Technora in Protective Clothing
• Technora in Protective Gloves
• Technora in Tires

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