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Their flowers are small and yellow with a purple center. The plant exhibits extrafloral nectaries [2] (calyculal nectaria, found on the receptacle, near the base of the calyculus). When ripe and in warm weather, the flower capsule will burst and expose the cotton surrounding the seeds firmly. The cotton produced by this plant is short, about 25 ...
Gossypium (/ ɡ ɒ ˈ s ɪ p i ə m /) [2] is a genus of flowering plants in the tribe Gossypieae of the mallow family, Malvaceae, from which cotton is harvested. It is native to tropical and subtropical regions of the Old and New Worlds.
Socks, underwear, and most T-shirts are made from cotton. Bed sheets often are made from cotton. It is a preferred material for sheets as it is hypoallergenic, easy to maintain and non-irritant to the skin. [94] Cotton also is used to make yarn used in crochet and knitting. Fabric also can be made from recycled or recovered cotton that ...
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.
Gossypium hirsutum, also known as upland cotton or Mexican cotton, is the most widely planted species of cotton in the world. Globally, about 90% of all cotton production is of cultivars derived from this species. [2] In the United States, the world's largest exporter of cotton, it constitutes approximately 95% of all cotton production.
Flax fiber is a raw material used in the high-quality paper industry for the use of printed banknotes, laboratory paper (blotting and filter), rolling paper for cigarettes, and tea bags. [ 35 ] Flax mills for spinning flaxen yarn were invented by John Kendrew and Thomas Porthouse of Darlington , England , in 1787. [ 36 ]
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Some cotton paper contains a watermark. It is used for banknotes in a number of countries. These banknotes are typically made from 100% cotton paper, but can also be made with a mixture of 75% or less flax. [3] Other materials may also be used and still be known as currency paper. Higher quality art papers are often made from cotton.
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