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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.
Sally Fox (born 1955) is a cotton breeder who breeds naturally colored varieties of cotton. She is the inventor of Foxfibre®️ and founder of the company Natural Cotton Colors Inc. Fox invented the first species of environmentally friendly colored cotton that could be spun into thread on a machine. [1]
Cotton strippers are used in regions where it is too windy to grow picker varieties of cotton, and usually after application of a chemical defoliant or the natural defoliation that occurs after a freeze. Cotton is a perennial crop in the tropics, and without defoliation or freezing, the plant will continue to grow.
The color of a dye is dependent upon the ability of the substance to absorb light within the visible region of the electromagnetic spectrum (380–750 nm). An earlier theory known as Witt theory stated that a colored dye had two components, a chromophore which imparts color by absorbing light in the visible region (some examples are nitro , azo ...
Disperse dyes were introduced in 1923 to color the new textiles of cellulose acetate, which could not be colored with any existing dyes. Today disperse dyes are the only effective means of coloring many synthetics. Reactive dyes for cotton were introduced in the mid-1950s. These petroleum based, synthetic dyes are used both in commercial ...
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 is a fiber plant and non-comestible crop primarily used as a woven fabric. Subcategories This category has the following 7 subcategories, out of 7 total.
Gossypium barbadense L. – Creole cotton/Sea Island Cotton (tropical South America) Gossypium darwinii G.Watt – Darwin's cotton (Galápagos Islands) Gossypium hirsutum L. – upland cotton (Central America, Mexico, the Caribbean and southern Florida) Gossypium mustelinum Miers ex G.Watt; Gossypium tomentosum Nutt. ex Seem – Maʻo or ...