Microdenier fibers

Microdenier fibers - [POLYAMIDES - FIBERS] (Vol 19) - [HIGH PERFORMANCE FIBERS] (Vol 13)... 

Microdenier Fibers. The first commercial production of microfiber in the United States was in 1989 by the DuPont Company. Today microfibers are produced in a variety of synthetic fibers (i.e., polyester, nylon, acrylic, etc.) A microfiber is a fiber that is less than one denier per filament. Yams made from microdenier filaments are able to give silklike hand to fabrics. 

Microfibers Also known as microdenier fibers. These are fibers having less than 1 denier per filament (or less than 0.11 tex per filament). Fabrics made of such microfibers have superior silk-like handle and dense construction. They find applications in stretch fabrics, lingerie, rain wear, etc. 

Mkrofiber or microdenier fiber has become important in the fashion industry. The reason for this is the fine size of microfiber. It is finer than any natural textile fiber such as silk, wool, etc. Microfibers are nothing but polyester fibers with diameter <5 xm (or less than 1 den). Such fineness allows more filaments to be packed in the yarn. Fabrics using such tightly bundled filaments are said to have a buttery texture like velour or washed silk. They also have the desirable characteristics of polyester, namely wrinkle-resistance and durability. Such fabrics are used in men s wear, women s wear, rainwear, active wear and home furnishings. 

Sulfonated Polyesters may be also used for water-dispersible fibers (63). The fibers contain a single or a blend of a sulfopoly-ester with a water-dispersible polymer. The multicomponent fibers can be used to produce microdenier fibers. The biodegradability of the polymers have been assessed by the ASTM Standard Method D6340-98 (64). 

Micrographs showing a meltblown microdenier fibers layer sandwiched between two spun-bonded regular denier fiber layers (a) top view and (b) cross-section showing details of the embedded structure. 

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