Large velvet curtains

If curtains used a large velvet curtain material dirty when you need to take down the curtains to be soaked in an alkaline cleaning solution, hand soft reduction, cleaned on the inclined shelf, waiting for the water automatically after drip dry, curtains clean as new; if it is soft big curtain blinds, we need to put windows shut, in the above amount of water or spray polishes, then wipe dry with a rag on the line.