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.
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| 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 |
