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Cotton fibres
Cotton is a seed hair
Comes from the boll of cotton plant
4000 fibres emerge from one single cotton
seed on average
BUT up to 20,000 fibres can be generated by
one
The seed
The Boll of the cotton ­
maturing and opening.
cotton
.
flower.
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in
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Image taken from: com/2009/10/its myturksandcaicosblog
www.learnnc.org -cotton-picking-
time-down-
.com/?tag=cotton A cotton field in Florida
south-or.html…read more

Slide 3

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Cotton has over 100 different uses.
Cotton fibres have a set of properties that
leads to acceptable fabric performance
Raw cotton is creamy white in colour
The fibre is a singular cell that grows out of the
seed
It is hollow and a cylindrical tube
Over one thousand times long as it is thick
Quality of the fibre depends on the length,
strength and fineness as well as maturity.
Other factors affecting quality are:
Colour
Leaf residue
Ginning preparation…read more

Slide 4

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Length......
CONTINUOUS
STAPLE: FILAMENT
The length will affect Longer fibres are
how the fibre is known as continuous
handled during the ­ they are not fully
spinning process continuous though.
It also relates to the Fibres range from ½
fineness and fibre an inch to 2 inches in
tensile strength length depending on
Staple fibre are the variety of cotton
normally less than
2cm long…read more

Slide 5

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Cotton has........
3 groups that are commercially important
UPLAND cotton ­ grown in Mexico and Central
America ­ fibres are no larger than 1 and 1/4
inches
LONG STAPLE ­ grown in Egypt and South
America ­ fibres are no longer than 1 and ½
inches
SHORT STAPLE ­ grown in India and Eastern
Asia (less than ¾ of an inche)…read more

Slide 6

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Long staple.......
Are considered to be finest quality
These are used to make
Smoother
Softer
Stronger
Lustrous yarns.
Higher prices ­ less produced
Highlighted on swing tags as "Supima" or
"Pima"…read more

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