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Structure &Fibre Properties
Miss Eryna Binti Nasir
NOR FARAH ASYIKIN
BINTI MOHD TALIB
NOR NADIAH BINTI
To identify the potential natural fibers
To study the suitable method on processing
the Kapok fibers.
To do fiber identification test to determine
the Kapok fiber properties.
To identify the end-use of the Kapok fiber.
Kapok tree does not grow wild in Malaysia and it comes
from the tropical America's.
Kapok fibres on their own are not suitable for spinning into
yarn. (as they are too smooth, slippery and brittle)
Kapok fiber's essential attributes are many: buoyant,
resilient, moisture resistant, vermin resistant and smooth,
kapok possess powerful performance in a lightweight
When kapok fibers are put under tension they completely
return to their original length when the tension is removed.
The conventional end uses of kapok include mattress/pillow
Microscopic view of cross-section of Kapok
Kapok sheds its leaves in the dry season, revealing hundreds
of 15 cm long leathery pods and small flowers that are
pollinated by bats. When mature, the pods burst open revealing
a whitish fibre surrounding round brown seeds which are
dispersed by the wind. The seeds can be oils
Kapok trees bring a lot of significant to human, as their
wood are lightweight and porous which are very suitable for
making carvings, coffins and canoes.
The silky fibres are suitable for making stuffing and life
jacket. Oil in the seeds can be made as soap and other parts
of the tree are used as medicines to treat fever, asthma,
kidney disease and dysentery.
Kapok harvesting process requires a lot of manpower,
as each step is done mostly by hand. The process
The ripe unopened
pods are normally
knocking them off
the tree, but they
can also be cut
from the tree or
they fall to the
Sorting dry cottonwood logs
weather it is
wet or dry. If
wet kapok will be
dry under the
sun rays until it
Then it was dried in the middle of the
scorching heat to dry skin.
The best time for
kapok is early in
the morning when
the weather and
the air were still
moist and not dry.
If done in the
removing Kapok hulls
the fruits are
hulled and seed
and fibres were
the pods by
process is done
by using hand
Kapok fibre is
dried under the
sun for 3 to 5
The seeds lie loose
in the floss and,
with the help of
some beating they
fall to the bottom
of the container
where they are
easily separated. In
this process, kapok
was inserted into
barrel. Then a
device called a
bow inserted in
bins and scrub
process is done.
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NO. TITLE EXPLANATION
Fiber length About 2.5 cm long
All natural fibers are staple fiber
Burn test Plant based fibers that are suitable for dyeing with fiber reactive dyes will
• Ignites and burns quickly, may flare, leaves a glowing ember after flame is extinguished.
• Smoke is white or light colored and
• Smells like burnt paper or leaves.
• Ash is light gray or white and very soft.
Burns with light grey smoke when in flame.
Then burn with ember after flame is extinguished.
Ignites and burn quickly.
Leave whitish ash residues.
3. Surface contour • Smooth surface contour when touch.
Color • White or pale yellow in color
Care • Natural biodegradable fibres
Burn test Result
▪ Life Jackets
The natural wax coating of
the fibre only allows a
low level of moisture
absorption – an advantage
that promises excellent
wearing properties for
The conventional end uses of kapok include mattress/pillow stuffing,
upholstery and thermal insulation. The market for kapok in these traditional
uses has declined considerably over the past 30 years, due to the
developments in synthetic materials, such as foamed plastics, which have
almost replaced kapok in most of its traditional end uses. Attempts to use
kapok fibre for producing textile yarn were not successful due to the
slippery nature of the fibres and its brittleness. The fibre yarn resulting
from blending kapok with cotton is potentially suitable for producing woven
textile fabrics. In addition to its potential use as clothing material, the
fabric is being considered for suitability as reinforcement to thermosetting
polymeric materials such as polyester and phenolic resins