polyester(redirected from Unsaturated polyester)
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polyester,synthetic fiber, produced by the polymerization of the product formed when an alcohol and organic acid react. The outstanding characteristic of polyesters is their ability to resist wrinkling and to spring back into shape when creased. In addition, polyesters have good dimensional stability, wash and dry easily and quickly, and have excellent wash-and-wear or minimum-care characteristics; one of their principal uses is in apparel fabrics of this kind. Microfiber, which was introduced in 1986, is a variety of polyester that has extremely thin filaments (half as thick as silksilk,
fine, horny, translucent, yellowish fiber produced by the silkworm in making its cocoon and covered with sericin, a protein. Many varieties of silk-spinning worms and insects are known, but the silkworm of commerce is the larva of the Bombyx mori,
..... Click the link for more information. fibers). Polyesters are also used in casement curtains, throw rugs, and as a cushioning or insulating material.
any of a large class of synthetic materials that are polymers containing recurring -COO- groups: used as plastics, textile fibres, and adhesives