Viscose rugs are prone to shedding, so avoid placing them in high-traffic areas. Viscose fiber can be bent by walking about 70 times. In contrast, a silk rug can be bent 2,000 times before it breaks. Be careful not to spill liquids on these rugs. When water or other liquids are splashed on the viscose fiber, the viscose fiber will turn yellow. If you see yellow spots on your viscose carpet, it could be from someone spilling a drink or from too much humidity in the room.