Try to clean the yellow and you will just make it worse.
Cleaning wool viscose rugs.
Viscose is extremely absorbent so remove stains using a damp cloth and a mild cleanser.
Never scrub it too hard or use an electric rug cleaner on it.
Mix carpet cleaning chemicals with water to create a cleaning solution.
Be gentle when cleaning your viscose rug.
Acid based detergents seem to give us the best results with very exhaustive drying attempts and variations.
Viscose or art silk has the same soft luxurious look and feel as silk but at a much more affordable price.
Dry cleaning is an option.
Viscose is a man made fiber created from wood pulp.
An inexpensive product that dyes easily and is non static in nature viscose is often referred to as rayon faux silk.
You can find anionic detergents or other cleaners made specifically for viscose rugs online or at rug stores.
A carpet sweeper is best for 100 percent viscose rugs but if you do use a vacuum set the power to low and disengage the beater bars.
If there is a spillage use paper towels or a clean white cloth to gently blot away the spilled stuff and after that a cloth dipped in the acetic or citric solution to carefully dab the spot until the stain is removed.
1 yellowing cellulose fibers turn yellow when wet so any liquid that spills on viscose has the potential to turn the rug yellow.