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For thousands of years, the use of fiber was limited by the inherent qualities available in the natural world. Cotton and linen wrinkled from wear and washings. Silk required delicate handling. Wool shrank, was irritating to the touch, and was eaten by moths. Then, a mere century ago, rayon the first manufactured fiber was developed. The secrets of fiber chemistry for countless applications had begun to emerge.
Manufactured fibers now are put to work in modern apparel, home furnishings, medicine, aeronautics, energy, industry, and more. Fiber engineers can combine, modify and tailor fibers in ways far beyond the performance limits of fiber drawn from the silkworm cocoon, grown in the fields, or spun from the fleece of animals.
The Early Attempts
The first patent for artificial silk was granted in England in 1855 to a Swiss chemist named Audemars. He dissolved the fibrous inner bark of a mulberry tree, chemically modifying it to produce cellulose. He formed threads by dipping needles into this solution and drawing them out - but it never occurred to him to emulate the silkworm by extruding the cellulosic liquid through a small hole.
In the early 1880's, Sir Joseph W. Swan, an English chemist and electrician, was spurred to action by Thomas Edison's new incandescent electric lamp. He experimented with forcing a liquid similar to Audemars solution through fine holes into a coagulating bath. His fibers worked like carbon filament, and they found early use in Edison's invention.
It also occurred to Swan that his filament could be used to
make textiles. In 1885 he exhibited in London some fabrics crocheted
by his wife from his new fiber. But electrical lamps remained
his main interest, and he soon abandoned work on textile applications.
First Commercial Production
Several attempts to produce artificial silk in the United States were made during the early 1900's but none were commercially successful until the American Viscose Company, formed by Samuel Courtaulds and Co., Ltd., began production its production of rayon in 1910.
In 1893, Arthur D. Little of Boston, invented yet another cellulosic product acetate and developed it as a film. By 1910, Camille and Henry Dreyfus were making acetate motion picture film and toilet articles in Basel, Switzerland. During World War I, they built a plant in England to produce cellulose acetate dope for airplane wings and other commercial products. Upon entering the War, the United States government invited the Dreyfus brothers to build a plant in Maryland to make the product for American warplanes. The first commercial textile uses for acetate in fiber form were developed by the Celanese Company in 1924.
In the meantime, U.S. rayon production was growing to meet increasing demand. By the mid-1920's, textile manufacturers could purchase the fiber for half the price of raw silk.
So began manufactured fibers' gradual conquest of the American fiber market. This modest start in the 1920's grew to nearly 70% of the national market for fiber by the last decade of the century.
Nylon The Miracle Fiber
By 1938, Paul Schlack of the I.G. Farben Company in Germany, polymerized caprolactam and created a different form of the polymer, identified simply as nylon 6.
Nylon's advent created a revolution in the fiber industry. Rayon and acetate had been derived from plant cellulose, but nylon was synthesized completely from petrochemicals. It established the basis for the ensuing discovery of an entire new world of manufactured fibers.
An American Romance
American women had only a sampling of the beauty and durability of their first pairs of nylon hose when their romance with the new fabric was cut short. The United States entered World War II in December 1941 and the War Production Board allocated all production of nylon for military use. Nylon hose, which sold for $ 1.25 a pair before the War, moved in the black market at $10. Wartime pin-ups and movie stars, like Betty Grable, auctioned nylon hose for as much as $40,000 a pair in war-effort drives.
During the War, nylon replaced Asian silk in parachutes. It also found use in tires, tents, ropes, ponchos, and other military supplies, and even was used in the production of a high-grade paper for U.S. currency. At the outset of the War, cotton was king of fibers, accounting for more than 80% of all fibers used. Manufactured and wool fibers shared the remaining 20%. By the end of the War in August 1945, cotton stood at 75% of the fiber market. Manufactured fibers had risen to 15%.
The Post-War Industry
In the immediate post-war period, most nylon production was used to satisfy this enormous pent up demand for hosiery. But by the end of the 1940's, it was also being used in carpeting and automobile upholstery. At the same time, three new generic manufactured fibers started production. Dow Badische Company (today, BASF Corporation) introduced metalized fibers; Union Carbide Corporation developed modacrylic fiber; and Hercules, Inc. added olefin fiber. Manufactured fibers continued their steady march.
By the 1950's, the industry was supplying more than 20% of the fiber needs of textile mills. A new fiber, acrylic, was added to the list of generic names, as DuPont began production of this wool-like product.
Meanwhile, polyester, first examined as part of the Wallace Carothers early research, was attracting new interest at the Calico Printers Association in Great Britain. There, J. T. Dickson and J. R. Whinfield produced a polyester fiber by condensation polymerization of ethylene glycol with terephthalic acid. DuPont subsequently acquired the patent rights for the United States and Imperial Chemical Industries for the rest of the world. A host of other producers soon joined in.
A Wash and Wear Revolution
Polyester's commercialization in 1953 was accompanied by the introduction of triacetate. The majority of the 20th century's basic manufactured fibers now had been discovered, and the industry's engineers turned to refining their chemical and physical properties to extend their use across the American economy.
In the 1960's and 1970's consumers bought more and more clothing made with polyester. Clotheslines were replaced by electric dryers, and the wash and wear garments they dried emerged wrinkle free. Ironing began to shrink away on the daily list of household chores. Fabrics became more durable and color more permanent. New dyeing effects were being achieved and shape-retaining knits offered new comfort and style.
In the early 1960's, manufactured fiber accounted for nearly 30% of American textile mill consumption. By 1965, the manufactured fiber industry was providing over 40% of the nation's fiber needs.
One dramatic new set of uses for manufactured fibers came with the establishment of the U.S. space program. The industry provided special fiber for uses ranging from clothing for the astronauts to spaceship nose cones. When Neil Armstrong took One small step for man, one giant leap for mankind, on the moon on July 20, 1969, his lunar space suit included multi-layers of nylon and aramid fabrics. The flag he planted was made of nylon.
Today, the exhaust nozzles of the two large booster rockets that lift the space shuttle into orbit contain 30,000 pounds of carbonized rayon. Carbon fiber composites are used in as structural components in the latest commercial aircraft, adding strength and lowering weight and fuel costs.
Safety and Energy Challenges
In late 1973, when the Nation was struck by a severe energy crisis, the manufactured fiber industry reduced the energy required to produce a pound of fiber by 26%. By then, the industry was using but 1% of the Nation's petroleum supply to provide two-thirds of all fibers used by American textile mills.
Today Innovation is the hallmark of the manufactured fiber industry. Fibers more numerous and diverse than any found in nature are now routinely created in the industry's laboratories.
Nylon variants, polyester, and olefin are used to produce carpets that easily can be rinsed clean even 24 hours after they've been stained. Stretchable spandex and machine-washable, silk-like polyesters occupy solid places in the U.S. apparel market. The finest microfibers are remaking the world of fashion.
For industrial uses, manufactured fibers relentlessly replace traditional materials in applications from super-absorbent diapers, to artificial organs, to construction materials for moon-based space stations. Engineered non-woven products of manufactured fibers are found in applications from surgical gowns and apparel interfacing to roofing materials, road bed stabilizers, and floppy disk envelopes and liners. Non-woven fabrics, stiff as paper or as soft and comfortable as limp cloth, are made without knitting or weaving.
As they always have, manufactured fibers continue to mean, life made better.
First Commercial U.S. Production
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