Bamboo fiber is the fifth largest natural fiber extracted from naturally grown bamboo, followed by cotton, hemp, wool and silk. Bamboo fibrils have good gas permeability, instant water absorption, strong wear resistance and good dyeability, and have natural antibacterial, antibacterial, antimony, deodorant and anti-ultraviolet functions.
The chemical constituents of bamboo fibrils are mainly cellulose, hemicellulose and lignin. The three are homopolysaccharides, and the total amount is more than 90% of the fiber dry mass, followed by protein, fat, pectin, tannin, pigment, Ash, etc., most exist in the cell lumen or special organelles, directly or indirectly involved in its physiological role.
Cellulose is the main component of bamboo fibril cells, and it is also the significance of textile fibers. Because of the different age of bamboo, the cellulose content is also different, such as 75% of tender bamboo, 66% of one-year-old bamboo and 58% of three-year-old bamboo. The hemicellulose content in raw bamboo fibers is generally 14%-25%, and the average content of Phyllostachys pubescens is about 22.7%. With the increase of bamboo age, the hemicellulose content also decreases, such as 24.9% for 2-year-old bamboo and 23.6% for 4-year-old bamboo.