Spandex – Elastomeric fibers  | Texhour

Spandex is an elastomeric fiber that consists of soft and hard segments. Elastomeric fibers, also known as soft fibers, extend due to the presence of soft segments in the fiber. Elastomeric fibers are capable of being stretched 5 – 7 times their length

Spandex – Elastomeric fibers  | Texhour
Spandex – Elastomeric fibers 

 

Spandex – Elastomeric fibers 

• Spandex is an elastomeric fiber that consists of soft and hard segments. Elastomeric fibers, also known as soft fibers, extend due to the presence of soft segments in the fiber. Elastomeric fibers are capable of being stretched 5 – 7 times their length.

• Spandex and other elastomeric fibers are always combined with other fibers to produce stretch fabrics. These fibers can only be used in the filament form, as short fibers would not have the ability to stretch.

• Stretch fabrics are often divided into two major groups – comfort stretch and power stretch.

• Comfort Stretch is a term used to describe fabrics with about 10%-15% stretch that are used mostly in garments requiring a moderate amount of elasticity. For comfort stretch, a very small amount (2%-5%) of spandex or other elastomeric fiber is used in combination with fibers such as cotton, polyester, wool & rayon.

• Power Stretch is fabric stretch normally in the range of 30%-50% with good recovery, for figure-controlling purposes as is required for active sportswear or swimwear. Bare, covered, and core-spun spandex is used for power stretch.

 

Spandex Yarn may be Bare, Single Covered or Double Covered

Single Covered:

Depending on thickness required, 10 denier ~ 200 denier of spandex is wrapped with a filament yarn e.g. nylon, polyester or rayon. Normally the wrapping is Z twist for use in fabrics, but socks and underwear use both S and Z twist.

 

Spandex – Elastomeric fibers

 

Double Covered :

Double Covering Yarns 10 denier ~ 200 denier of spandex is wrapped with two filament yarns are wrapped with two layers of the filament, one S, and one Z

 

Some Major spandex Fiber Uses

  • Comfort and fit garments like swimsuits, aerobic wear, disposable diaper, bra straps, bra side panels, bra cups etc...

  • Compression garments like a surgical hose, bicycle pants etc..