Cotton bale

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:

• Density (448 kg/m³)^[9]
• Measurements of the bales (nominally 1.40 m X 0.53 m X 0.69 m)^[11][9]
• Weight (Varies, but ‘statistical’ bale weighs 480 lb)^[9]

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]