LYCRA is a type of spandex [SPANDEX]
Spandex includes: elastic fiber, Lycra (Laka), LYCRA, spandex
Advantages of fabric
1. Large stretch, good shape retention, and no wrinkles; 2. Soft and smooth feel, best elasticity, comfortable wearing, considerate and fit; 3. Acid and alkali resistance, Wear-resistant and aging-resistant; 4. It has good dyeability and is not suitable for fading.
Disadvantages of fabric
1. Generally hygroscopic; 2. Spandex is usually not used alone, but blended with other fabrics
Extended information:
How to identify various types of fabrics
1. Cotton fiber and linen fiber Both cotton fiber and linen fiber ignite as soon as the flame is near, burning quickly, with a yellow flame and blue smoke. The difference between the smells emitted by the two when burning and the ashes after burning is that cotton emits a paper smell when burned, while hemp emits a grass ash smell after burning. After burning, cotton has very little powdery ash, which is black or gray, while hemp produces a small amount of off-white powdery ashes.
2. Wool fiber and silk wool smoke when exposed to fire, foam when burning, burn slowly, and emit the odor of burning hair. The ashes after burning are mostly shiny black spherical particles. It breaks when pressed with your fingers. When the silk is exposed to fire, it shrinks into a ball, burns slowly, makes a hissing sound, and emits the smell of burning hair. After burning, it condenses into small dark brown spherical ash, which can be broken into pieces when twisted by hand.
3. Nylon and Polyester Nylon, whose scientific name is polyamide fiber, quickly shrinks and melts into a white gel when near the flame. It melts, drips and bubbles in the flame. There is no flame when burning, and it is difficult to continue without the flame. It burns and emits a celery smell. After cooling, the light brown melt is not easy to grind.
Polyester's scientific name is polyester fiber. It is easy to ignite. It melts and shrinks when it is near the flame. When burning, it melts and emits black smoke. It shows a yellow flame and emits an aromatic smell. After burning, the ashes are dark brown lumps that can be removed with your fingers. Twist.
Baidu Encyclopedia--Stretch fabric