Naturally colored cotton

Naturally colored cotton

Naturally colored cotton is cotton that has been bred to have colors other than the yellowish off-white typical of modern commercial cotton fibers. Colors grown include red, green and several shades of brown.[1] The cotton's natural color does not fade. Yields are typically lower and the fiber is shorter and weaker but has a softer feel than the more commonly available "white" cotton.

Since it doesn't have pesticides, chemicals, bleaches or artificial dyes, fewer allergies and respiratory problems are found.[citation needed] This form of cotton also feels softer to the skin and has a pleasant smell. Naturally Colored Cotton is still relatively rare because it requires specialized harvest techniques and facilities, making it more expensive to harvest than white cotton. By the 1990s most indigenous colored cotton landraces or cultivars grown in Africa, Asia and Central and South America were replaced by all-white, commercial varieties.



Naturally colored cotton is believed to have originated in the Americas around 5000 years ago in the Andes.[2] Naturally colored cotton today mostly comes from pre-Columbian stocks created by the indigenous peoples of South America (Vreeland, 1999). Mochica Indians could be attributed with growing naturally colored cotton of myriad hues, which they maintained for over the last two millenniums on the northern coast of Peru.[2]


Naturally colored cotton comes from pigments found in cotton pigments and produce shades ranging from tan to green and brown.[3]. Naturally pigmented green cotton derives its color from caffeic acid, a derivative of innamic acid, found in the suberin (wax) layer which is deposited in alternating layers with cellulose around the outside of the cotton fiber.[4] While green colored cotton comes from wax layers, brown and tan cottons derive their color from tannin vacuoles in the lumen of the fiber cells.[3]


The naturally colored cotton has a small fiber and is not suitable for heavy machine spinning. During the World War II the insufficient supply of dye led to the cultivation of green and brown cotton in the Soviet Union.[2] The US government also showed interest in cultivation of naturally colored cotton but later aborted the project due to low yield and short staple length.[2]

“Later on US government instructed a famous agronomist, J.O.Ware, to study the Soviet cotton plants to determine whether they were commercially viable in the U.S. Ware and his colleagues concluded that the green and brown cotton plants yielded too little lint that was too short in staple length. Colored cotton was officially regulated to obscurity. Only in a few places where people still entranced by its possibilities.”[2]

Due to smaller fiber, it becomes unpractical to use naturally colored cotton for clothing manufacturers.[5]. But now, colored cotton is literally squeezed in with the conventional white cotton to make its fiber longer and stronger than other naturally colored cotton to be used in typical looms. Since this hybrid cotton fiber is stronger, it is being used by Levis, L.L. Bean, Eileen Fisher, and Fieldcrest for clothes like khakis.[5]

Commercial cultivation

A new arrival on the Western fashion market, naturally pigmented cotton originally flourished some 5,000 years ago.[2] Its revival today draws on stocks first developed and cultivated by Indians in South and Central America. Recent commercial cultivation currently uses pre-Columbian stocks created by the indigenous peoples of South America. Commercial cultivation still continues in South America as many big US companies such as Patagonia, Levi Strauss, and Esprit are buying naturally grown cotton along with white cotton which requires significant amount of insecticides and pesticides.[2]

Upgrade in technology

As mentioned the naturally colored cotton had smaller fiber which were not suitable for mechanical looms used today, therefore kept naturally colored cotton to enter in the commercial market. In 1982, Sally Fox a graduate in Integrated Pest Management from University of California with a Masters Degree started researching on colored cotton and integrated her knowledge and experience in technology and introduced first long fiber of naturally colored cotton.[4][6] Sally Fox later started her company, Natural Cotton Colors, Inc. and got patents in different shades including: green, Coyote brown, Buffalo brown, and Palo Verde green under FoxFiber.[4]

Later on the technology was further improved by a cotton breeder Raymond Bird in 1984. Bird began experimenting in Reedley, California, with red, green, and brown cotton to improve fiber quality. Later on Raymond Bird along with his brother and C. Harvey Campbell Jr., a California agronomist and cotton breeder, and formed BC Cotton Inc. to work with naturally colored cottons. Naturally colored cotton usually come in four standard colors - green, brown, red (a reddish brown) and mocha (similar to tan).[4]


There is experimental evidence to demonstrate that naturally pigmented cottons, especially green cotton, have excellent sun protection properties, when compared with unbleached white cotton that needs to be treated with dyes or finishes to obtain similar properties.[3] It is hypothesized that the pigments in naturally pigmented cotton fibers are present to provide protection from ultraviolet radiation for the embryonic cotton seeds, however they can also provide protection from the sun’s harmful rays for consumers who wear garments manufactured from these naturally pigmented fibers.[3] The UPF values of the naturally pigmented cottons examined in a university study remained high enough, even after 80 AFUs (AATCC Fading Units)of light exposure and repeated laundering, that the fabrics merited sun protection ratings of “good” to “very good” according to ASTM 6603 voluntary labeling guidelines for UV-protective textiles.[3]

Use of dyes

Naturally colored cotton is unique and exceptionally different from white cotton as it does not need to be dyed.[7] According to, agronomists the cost of dyeing could be up to half of the value, and also environmentally friendly, as it eliminates disposal costs for toxic dye waste. According to Dr. Frank Werber, National Program Leader for Fabric and Materials, Agriculture Research Service, USDA, naturally colored cotton is ecologically valid as well as economical. Elimination of dyeing in production could save from $.60-1.50 per pound of fabric. Naturally colored cotton is also resistant to change as compared with the conventional dyed white cotton. After laundering, the color becomes stronger and more intense, a characteristic documented during research studies at Texas Tech University. The length of time required to "bring out" the color varies with color and variety. Eventually, the colors may start to return to their original color. Some naturally colored cotton darkens with exposure to the sun. However, green is less stable and fades to tan when exposed to sunlight.[7]


Due to the non-industrialized product naturally colored cottons yield less per acre, but growers are paid higher prices for their harvest. In 1993, colored cotton prices ranged from $3.60 to $4.50 per pound compared to conventional white cotton at $.60 to $.90 per pound.[7].


  1. ^ Dickerson et al., Naturally colored cotton CATI #990901
  2. ^ a b c d e f g James M. Vreeland, Jr. The Revival of Colored Cotton, Scientific American. Apr 1999, Vol. 280 Issue 4, p 112
  3. ^ a b c d e Hustvedt, G., & Crews, P. C. (2005). Textile Technology, The Journal of Cotton Science, p. 47-56
  4. ^ a b c d Hustvedt, G., & Crews, P. C. (1999, October). Naturally Colored Cotton: Resistance to Changes, The Journal of Cotton Science , p. 1-49
  5. ^ a b Kimmel, L. B. (1996, April 23). A New Spin on Naturally Colored Cotton, United States Department of Agriculture. Retrieved November 10, 2010
  6. ^ Sally Fox and Natural Cotton, (2009). Retrieved November 9, 2010
  7. ^ a b c Dickerson, D. K., Lane, E. F., & Rodrigues, D. F. (1996, October). Evaluation of Selected Performance: Characteristics of Naturally Colored Cotton Knit Fabrics, California Agricultural Technology Institute. Retrieved November 10, 2010
  • J.M. Vreeland "Naturally Colored and Organically Grown Cottons: Anthropological and Historical Perspective", Proceedings of the 1993 Beltwide Cotton Conferences. National Cotton Council of America, 1993

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