Betty, Why would you want to wash them if they should be dry cleaned? Don't do it. You may ruin them. You can try that do it yourself at home dry cleaning bag that they sell in the stores. You put your items in a bag with some type of solution, and put the bag in the dryer for a while. I think the kit runs around 8 dollars. If you have expensive pretty linen curtains, don't take a chance with them. Take them to a regular dry cleaner. Better to be safe than sorry.
Anna Sparky's Mom