A cotton bale is a standard-sized and weighted pack of compressed cotton lint after ginning. The dimensions and weight may vary with different cotton-producing countries. [1]
A bale has an essential role from the farm to the factory. The cotton yield is calculated in terms of the number of bales. [2] Bale is a standard packaging method for cotton to avoid various hassles in handling, packing, and transportation. The bales also protect the lint from foreign contamination and make them readily identifiable. [3]
Bale management encompasses the systematic procedures of categorizing, blending, and assessing bales based on fiber attributes, with the aim of achieving desired quality yarn production at an optimized cost. [4] Cotton fibres differ in terms of staple length and other physical characteristics; this is an inherent feature. [5] Bale management, also known as "bale mixing," is the process of analysing, classifying, and then blending fibres from various bales [which also includes the bales received from other stations] according to their fibre properties in order to create yarn of a specific quality at the most affordable price.[ citation needed ]
A "bale of cotton" is also the standard trading unit for cotton on the wholesale national and international markets. Although different cotton-growing countries have their bale standards, for example, In the United States, cotton is usually measured at approximately 0.48 cubic meters (17 ft3) and weighs 226.8 kilograms (500 pounds). [6] In India, the standard bale size is 170 kg. [7] [8] [9] [10]
The most important parameters of a cotton bale are:
| Sr.No. | Country | Bale in kg |
|---|---|---|
| 1 | Australia | 227 |
| 2 | Colombia | 233 |
| 3 | Egypt | 327 |
| 4 | India | 170 [12] |
| 5 | Pakistan | 170 |
| 6 | Mexico | 230 |
| 7 | Nigeria | 185 |
| 8 | South Africa | 200 |
| 9 | Sudan | 191 |
| 10 | Tanzania | 181 |
| 11 | Uganda | 181 |
| 12 | United States of America | 225 |
Advances in standardization are reducing the variation in weights, sizes, dimensions, and densities of cotton bales. [7] [13]
Candy is another trading unit. A candy weighs approximately 2.09 bales (356 kg). [14] In India, ginned cotton is traded in terms of candy also which weighs 356 kg (355.62 kg). [15] [16] [10]
When cotton is harvested and exposed to ginning, it carries more than 64% cottonseed, 2% waste and 34% fibrous matter (also known as lint). [17] Lower trash percentage in cotton increases the recovery. [18] Cotton bales are not pure cotton; they contain foreign contaminants, residual trash and leaf (and other non lint material) that have a direct impact on the recovery in yarn spinning. [19] [20]
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