What are the advantages and disadvantages of spandex? What are the advantages and disadvantages of spandex?

1, spandex is an elastic fiber, and its scientific name is polyurethane fiber. It has high elasticity and can be stretched 6 ~ 7 times, but it can be restored to its original state quickly with the disappearance of tension. Its molecular structure is chain-like, soft and malleable polyurethane, and its characteristics are enhanced by connecting with hard segments.

2. Advantages of spandex:

(1) High ductility, good shape retention and no wrinkling.

(2) Soft and smooth feel, good elasticity, comfortable to wear and considerate.

(3) acid and alkali resistance, wear resistance and aging resistance.

(4) It has good dyeability and is not suitable for fading.

3. Shortcomings of spandex:

(1) has poor hygroscopicity.

(2) Generally, spandex is not used alone, but blended with other fabrics.