What to do if a PVC curtain turns yellow?

How to clean yellowed plastic curtains? Cleaning plastic curtains is quite simple. Generally, when the curtains get dirty, soak them in detergent, then gently scrub with a brush or a soft cloth. Rinse thoroughly with clean water and you're done. However, if the curtains have aged or turned yellow, adjust the cleaning method slightly. Avoid using highly acidic or alkaline detergents and opt for those with moderate or low acidity. Also, clean them regularly and keep them away from heat sources to prolong their lifespan.