Why Is Spandex Fabric Prone To Yellowing?

Spandex fabric is yellow and big! Spandex is a kind of fiber commonly used in our life. The most outstanding feature is that it has good elasticity, and has the advantages of low fineness, large modulus of elasticity (breaking elongation up to 400%-800%) and small proportion.

Spandex is a kind of fiber commonly used in our life. The most outstanding feature is good elasticity, and has the advantages of low fineness, large modulus of elasticity (breaking elongation up to 400%-800%) and small proportion.

Spandex can be blended with wool, cotton, polyester, acrylic, viscose and other textile fibers. The fabrics made of spandex are soft, elastic and comfortable to wear, and are widely used in fitness clothes.

Jeans, tights, underwear,

Because of the higher requirements of women's clothing, the spandex fabric is more loved by women.

For example, women's favorite lace fabrics (including spandex) are easy to appear yellowing when they are dressed or placed for a long time. What is the reason?

Because spandex molecular chains contain a large number of reactive groups such as amino groups, it is easy to yellowing during high temperature setting or storage, affecting the quality of finished products, especially fluorescent whitening fabrics and light colored fabrics.

In order to improve the running performance of spandex in spinning, silicone oil lubricants and other auxiliaries were used in weaving process.

These auxiliaries will naturally degrade over time and cause fiber yellowing.

In addition, spandex itself is not easy to color, that is, conventional dyes can not make spandex color.

After dyeing, the phenomenon of so-called yellowing will also occur if the cleaning is not sufficient.

Best-selling black spandex filament -- raw liquor coloring technology

Black spandex is a widely used garment fabric in recent years.

Production capacity continues to expand and product performance continues to improve.

The black spandex filament directly spun directly through the special process such as coloring or on-line addition of the raw liquid not only has more uniform and lasting black effect, higher color fastness and excellent water washing property, but also eliminates the dyeing process of the fiber, reduces the energy consumption in dyeing process, and reduces the environmental pollution.