Wool scouring process

1. Welcome
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Thank you for coming today.
Good morning, ladies and gentlemen.
Thank you for coming having me here to speak
today.
I am Alrafi shuhad Student of Uttara University.
Today I am Talking about this topic Wool scouring
process.

2. Wool is a natural fiber produced by
sheep. Sheep grow wool on their
bodies in the
same way people grow hair. As
wool grows out from the sheep’s
skin,
it forms groups of wavy fibers
called staples. This natural crimp
(wave) gives wool. degraded by
alkhali.

3.  Wool is soft, strong,
lightweight,
 water–repellent and fire
resistant.
 Wool can absorb up to
30% of its weight in
moisture

4.  Wool scouring is
the process of washing wool in
hot water and detergent to
remove the non-wool
contaminants and then drying
it. It has always been an
important step in the wool
processing train. A growing
concern for the environment
has led to increased demands
on the scouring process.

5. Row Wool
Wool coated with grease ( also mud seeds and thorns picked up
in the fields)
Scouring Process
Washing
Wool is Washed
clean in a series
of baths
curtaining
detergent and hot
water
Rinsing
Wool is
thoroughly rinsed
and squeezed
through roles
Prying
Wool is dried

6. Scoured Wool
Clean Wool
LANOLIN
Wool loses about 30% its weight when
the grease is removed this is purified to
male lanolin and used in face and hand
cream, soap and ointment.

7. Shearing
Cleaning
and
Scouring
Grading
and
sorting
Carding
Spinning
Weaving Fulling &
finishing
Chemical
Finishes

8. Chemical
Caustic
Sodium
silicate
Use
( waxes and oils)
Penetrate and break down lignlins in motes

9. Chemical
Surfactant
Detergent
Use
Reduces surface tension and
minimize interfacial tensions.
Emulsify oils, fats and ways,
Remove oil-borne stains.
Suspend materials after they
have been removed

10. Builder (salt)
Solvent
Cause detergents to become
increasingly effective
Assist emulsification by
dissolving oil materials.

11. Carding
 The fiber are passed
through a series of metal
teeth
 Carding also removes
residual dirt and other
mater left in the fibers.

12.  Combing takes out the
shorter fibers also called
noils and lines the longer
fibers up parallel with one
another in a sliver ( A sliver
is a long bundle of fiber that
is generally used to spin
yarn )

13.  During the spinning process
the fiber are twisted into a
long. Continuous thread, or
yarn. This used to be done
with spindle whorls.

14.  After weaving both worsteds
and woolens undergo a series
of finishing procedures
including.

16. Chemical
pres
%g/l Rate Qty/100 kg
fabric
Cost/1000k
g fabric
Softening
agent
0.5 140.44 0.4 56.17
Soda 0.5 27.67 0.32 8.85
Nonionic
Surfactants
0.3 235 0.24 56.4
Scouring
enzyme
0.8 258 0.64 165.12
Jet 0.7 235 0.56 131.6
Dispersant 0.5 112 0.40 44.8
Total cost
Cost Kg
462.94
4.63

17. Alrafi shuhad
10th batch
7th semester
Id M21535211008