Place the fabric into a washing machine when in need of cleaning.
Add mild detergent according to the directions on the detergent package and the machine.
Set the washing machine to wash with warm water and run it. If possible, turn the spin cycle off. If not, remove the cloth before the spin cycle begins.
Set up a drying line outdoors. Sunnier spots will fade the fabric more quickly, but allow it to dry faster. Shadier spots are good for preserving the vibrant colours.
Hang the cloth on the drying line and fix it in place with plastic clips that won't leave marks on it.
Remove the cloth from the line when it is fully dry.
Lay the cloth down on an ironing board with the patterned side down, and iron any wrinkles out of it.