Cotton Production in Different Countries | Grading Chart for Different Types of Cottons | Composition of Cotton | Cotton Quality Specifications or Parameters | Grades of Cotton Fair to Middling
Botanical Name of Cotton:
Botanical name of cotton fibre has pointed out in the below:
- Gossypium herbaceum,
- Gossypium hirsutum,
- Gossypium arboreum,
- Gossypium barbedense.
 |
| Cotton fibre |
Fibre length and the name of producing country of above cotton have presented in the following:
1. Gossypium herbaceum:
Fibre length: 20mm – 26mm
Producing country: India, China, Bangladesh
2. Gossypium hirsutum:
Fibre length: 25mm – 30mm
Producing country: Pakistan, India, China, Russian, South America
3. Gossypium arboreum:
Fibre length: 15mm – 30mm
Producing country: India, Russian, Pakistan, China, America
4. Gossypium barbedense:
Fibre length: 30mm – 60mm
Producing country: Egypt
Production of Cotton in Different Countries (In %):
|
SL No.
|
Name of Country
|
Production (%)
|
|
01
|
America
|
60-65
|
|
02
|
India
|
10-12
|
|
03
|
Sudan and Egypt
|
5-6
|
|
04
|
Pakistan
|
5-6
|
|
05
|
China
|
3-4
|
|
06
|
Russian
|
3-4
|
|
07
|
Brazil
|
2-2.5
|
|
08
|
Other Countries
|
10
|
|
Total
|
100
|
|
Chemical Composition of Cotton:
|
SL No.
|
Different Matters
|
Chemical Composition (%)
|
|
01
|
Cellulose
|
94
|
|
02
|
Protein
|
1.3
|
|
03
|
Ash
|
1.2
|
|
04
|
Pectin
|
1.2
|
|
05
|
Wax
|
0.6
|
|
06
|
Total sugar
|
0.3
|
|
07
|
Pigment
|
Less
|
|
08
|
Others
|
1.4
|
|
Total
|
100
|
|
Cotton Grading:
The assortment of raw cotton according to their quality is known as cotton grading. Cotton grading of same countries have presented in the below:
|
Egyptian Cotton Grading
|
||
|
Grade
|
Grade Symbol
|
Grade Sequence Depending on Trash%
|
|
Extra fine
|
E.F
|
Higher grade (0.5%) →lower grade (6.5%)
|
|
Fine
|
F
|
|
|
Good
|
G
|
|
|
Fully good fair
|
F.G.F
|
|
|
Good fair
|
G.F
|
|
|
Fair
|
F
|
|
|
Indian Cotton Grading
|
||
|
Grade
|
Grade Symbol
|
Grade Sequence Depending on Trash%
|
|
Super choice
|
S.C
|
Higher grade (1.5%) →lower grade (10.5%)
|
|
Choice
|
C
|
|
|
Super fine
|
S.F
|
|
|
Fine
|
F
|
|
|
Fully good
|
F.G
|
|
|
Good
|
G
|
|
|
Fully good fair
|
F.G.F
|
|
|
American or Universal Cotton Grading
|
||
|
Grade
|
Grade Symbol
|
Grade Sequence Depending on Trash%
|
|
Middling fair
|
M.F
|
1
|
|
Strict good middling
|
S.G.M
|
1.3
|
|
Good middling
|
G.M
|
1.8
|
|
Strict middling
|
S.M
|
2.4
|
|
Middling
|
M
|
3.1
|
|
Strict low middling
|
S.L.M
|
4.2
|
|
Low middling
|
L.M
|
5.5
|
|
Strict good ordinary
|
S.G.O
|
7.4
|
|
Good ordinary
|
G.O
|
9.8
|
