„There are two types of fibers: natural and synthetic. Natural fibers start as a plant growing in the ground or as animal protein. Cotton, wool, linen, and silk are the most used natural fibers. Synthetic fibers are manufactured from chemical compounds. Nylon, polyester, and acrylic are the most common.”

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Note added at 45 perc (2013-02-17 15:12:33 GMT)
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Synthetics, műszálas
„Difference Between Synthetics & Natural Clothes
All types of clothing essentially consist of synthetic fibers, natural fibers or a combination of the two. Both types of fibers have advantages and disadvantages depending on their purpose.„
http://www.ehow.com/info_8677442_difference-between-syntheti...


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Note added at 20 nap (2013-03-09 15:04:39 GMT) Post-grading
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A teljes választék:
Műszál (everyday use) = artificial fibres
Vegyi szál (technical term) = man-made fibres
1) Szintetikus szál = synthetic fibres
2) Cellúlózszál = cellulose fibres