Dry clean (preferably).

Do not machine wash.

Soft hand wash with mild detergent in cold water in case of urgency. Do not spin dry or hand rinse. Let it drip dry on its own.

Avoid washing frequently.

Do not use fabric softener, bleach, or soak in hot or warm water.

Always iron with the painted fabric upside down. Do not place iron directly on the painted area.

Avoid applying perfume/cologne on the painted area.