Caring for and maintaining a viscose rug Viscose, also known as Rayon, is a rather temperamental type of fibre. Because it’s a plant-based fibre, it can easily mimic the look of other carpets such as cotton or silk. However, being plant-based also means it’s rather weak, and therefore more susceptible to wear and tear. That’s why it’s important to know how to maintain our viscose rugs. Zen Carpet Cleaning has provided you with a list of tips to ensure you’re not throwing out your rug just months after purchasing it.