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The maturity of individual cotton fiber is an essential aspect of cotton classing. Cotton maturity also contributes to the aesthetics of the product. For instance, it may affect appearance. Therefore, immature cotton that does not absorb dye is called ''dead fiber'', ''dead cotton'', and ''mote fibers.'' [7] [8] [3]
Cotton classification, or classing, is the process of classifying cotton based on its grade, staple length, and micronaire. [14] Micronaire is a measure of cotton maturity. [15] Maturity of cotton fibers is measured with single fiber measurement test or by double compression air flow test. It is expressed in percentage or maturity ratio. [11]
Cotton classification, or classing, is the process of classifying cotton based on its grade, staple length, and micronaire. [13] Micronaire is a measure of cotton maturity. [14] Maturity of cotton fibers is measured with single fiber measurement test or by double compression air flow test. It is expressed in percentage or maturity ratio. [15]
Textile fibres or textile fibers (see spelling differences) can be created from many natural sources (animal hair or fur, cocoons as with silk worm cocoons), as well as semisynthetic methods that use naturally occurring polymers, and synthetic methods that use polymer-based materials, and even minerals such as metals to make foils and wires.
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 cu ft) and weighs 226.8 kilograms (500 pounds). [6]
How readily air passes through the fiber. Dyeability How well the fiber accepts and holds color. Hand/Handle Tactile description: softness, resiliency, etc. Loft The amount of air between fibers. Resiliency (elasticity) The tendency of a fiber to resume its original shape after stretching. Thickness The diameter of the fiber in micrometres.
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Natural color in cotton comes from pigments found in cotton; these pigments can produce shades ranging from tan to green and brown. [3] Naturally pigmented green cotton derives its color from caffeic acid, a derivative of cinnamic acid, found in the suberin (wax) layer which is deposited in alternating layers with cellulose around the outside of the cotton fiber.