Classification of cotton Fiber:
Cotton fiber is obtained from a natural source, it obtained from cotton plant & it is classified as a
- Natural Fiber.
- Cellulose Fiber.
- Seed Fiber.
- Mono-cellular Fiber.
- Staple fiber.
Classification of cotton based on staple length:
Commercial cottons may be classified broadly into three categories with reference to the staple length:
- Staple Length: (26- 65 mm)
Includes the fine, lustrous fibers which from the top quality cottons. The fibers are generally of 10-15 microns diameter.
Sea Island, Egyptian and American Pima cottons are in this category.
2.Staple length (12- 33 mm)
Include the medium strength, medium lustre cottons which form the bulk of the world crop. The fibers are generally of 12-17 microns diameter.
American upland and some Peruvian types come into this category.
- Staple length (9- 26 mm)
Includes the coarse, low grade fibers which are often low in strength and have little or no lustre. The fibers are generally of 13-32 microns diameter.
Many of the Asiatic, Indian and some Peruvian cottons come into this category.
Botanical Classification of Cotton:
Cotton bears the botanical name Gossypium a member of the “Mallow” family. There are 50 species of cotton plants however only four (04) of them have attained commercial importance.
Sea Island cotton, Egyptian cotton, American cotton are belongs to this class
- Gossypium Harbaceum:
China cottons belongs to this class.
- Gossypium Hirsutum:
They are mostly cultivated in south and North America.
- Gossypium Paruvianum:
They are originally from South America but also grown in India, Pakistan and China.