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Caption: SWE - Proceedings of the First International Conference of Women Engineers and Scientists
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5. 6. 7. They must have strength, elongation, elasticity and plasticity. They must be fine and even in texture. They must have some length. 8. They must have spinnability. 9. They must have hygroscopicity. TEXTILE FIBERS FOR CLOTHING We shall now introduce the following fibers from which material for clothing is made; cotton, stem bark fibers, silk, wool, regenerated fibers and synthetic fibers. Cotton Cotton holds the first position not only among seed fibers but also in its production and demand in the world. Cotton is cultivated in broad o o districts from parallel 40 north to parallel 30 south. However, the quality of that produced in the tropical region is inferior to that of the fiber of the subtropic region. The principal regions are North America, India, Egypt, Soviet Russia, Peru, Brazil, China and Africa. The proper conditions for its cultivation are 20 - 30 C of temperature, much moisture, and soil rich in potassium and calcium. Sea Island Cotton is the finest of the cotton fibers and is mostly cultivated in the southeastern coast areas of the U.S.A, and its near-by islands. The cotton which is grown in Florida and Georgia has long, soft and tough fibers and it has cream-like or white color as well as luster. Egyptian" Cotton is next to the Sea Island Cotton and is cultivated in the region along the River Nile in Africa. This kind of cotton is white or light brown in color, and it is suitable to be made into sewing yarn, shirts, merias, and sovon. American Cotton is the cotton grown in the United States, excluding the Sea Island Cotton. This cotton amounts to half of the whole production of cotton in the world, and it controls the cotton market of the world. It is mostly cultivated in the states of Louisiana and Texas. This cotton is generally white, and the length of the cotton fiber is even. At present this kind of cotton has been transplanted in Africa, South America, India, China and Korea. Indian Cotton Is produced in approximately the same quantity as that of American Cotton. The quality is somewhat inferior to that of America, because the fiber is short and thick. 11-16
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