A colorful cotton underwear that claims to be "undyed"“ pure natural ” has become a hot product. However, the colored cotton content of many colored cotton underwear is actually very low, and the colors of natural colored cotton are only brown and green, and the three colors of black, red and blue are still in the experimental stage and have not been put into production.
Colored cotton refers to natural colored cotton. It is cultivated on the basis of traditional colored cotton using modern biotechnology such as far-farm hybridization and genetically modified products. Natural colored cotton not only reduces the printing and dyeing process, but also maintains the advantages of soft and breathable cotton fibers, which are particularly suitable for making clothes and bedding that are in direct contact with the skin. Compared with traditional cotton, colored cotton is natural fiber, it is more suitable for people and children with allergies.
There is currently no clear industry standard for colored cotton underwear. The industry generally believes that underwear made of more than 30% of colored cotton fiber and ordinary cotton fiber is considered colored cotton underwear. As for "pure colored cotton underwear", this is just a hype for merchants, because the fiber quality of natural colored cotton is very poor, and its length and fineness are not as good as white cotton. It must be mixed with other fibers to make underwear.
The color of colored cotton is determined by the pigment composition in the gene, and it is difficult to break through. Therefore, currently only two types of color are brown and green, and brown are the main ones. The color fastness of green is not good enough, and it is generally mixed with brown cotton to make clothes. Some brightly colored cotton underwear on the market are just acrylic or ordinary cotton fabrics, mostly made of dyed cotton, so be careful to distinguish them when purchasing.