Cotton and bamboo fiber have different structural characteristics. Cotton is composed of fluffy fibers, while bamboo fiber is filamentous in nature. As a recycled fiber, bamboo fiber allows for manual control over its length and fineness. In contrast, cotton fibers are naturally formed, meaning their length and fineness are fixed. Cotton has a dull appearance, whereas bamboo fiber exhibits a subtle luster, giving fabrics made from it a softer, smoother, and slightly velvety feel. Additionally, bamboo fiber carries a natural bamboo-like scent.
**Performance of Bamboo Fiber**
We all know that cotton is soft and highly absorbent—absorbing more than twice its weight in water. If we place equal weights of cotton and bamboo fiber in clear water, the bamboo fiber sinks quickly, while cotton floats on the surface. This is because bamboo belongs to the grass family, not a woody plant. Under a microscope, its structure appears as a series of vascular channels, resembling honeycomb-like pores. These hollow structures allow bamboo fiber to absorb and evaporate moisture rapidly, similar to a sponge. In comparison, cotton fibers have a solid, cylindrical cross-section, like chopsticks, which makes them less absorbent than the hollow bamboo fiber.
The porous structure of bamboo remains intact even after processing into recycled fibers. This gives bamboo fiber clothing a cool, breathable feel and excellent sweat-wicking properties.
Another concern with clothing is oil stains. Cotton fabric tends to absorb oil easily, making it difficult to clean. But how does bamboo fiber handle oil? We tested a bamboo fiber towel by pouring cooking oil and soy sauce on it for five minutes, then washing it in water. After wringing it out, there were no visible oil stains. This is due to the unique internal structure of bamboo fiber. Although it is porous, the small molecules of water can pass through freely, but oil molecules, being larger and denser, cannot penetrate the fiber. As a result, oil stays on the surface and is easily washed away, making bamboo fiber resistant to oil stains.
When it comes to dyeing, bamboo fiber performs exceptionally well. The multi-honeycomb structure allows dye molecules to penetrate quickly when the fiber is wet, spreading evenly throughout the material. This results in vibrant, long-lasting colors that do not fade easily, making bamboo fiber ideal for colorful and durable textiles.
Moreover, bamboo contains a natural antibacterial compound called "bamboo kun," which helps protect against bacteria and pests. This natural defense mechanism is preserved during the fiber processing, allowing bamboo fiber to resist odors and insect damage—something that ordinary fibers and cotton cannot achieve. This makes bamboo fiber clothing not only comfortable but also hygienic and long-lasting.
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