Satin fabrics are a smooth lustrous, shiny fabric with a dull back that has a superb drape and sheen and therefore often used as a luxurious curtain fabric. It is characterized by a weaving technique that forms a minimum number of interlacings in a fabric. Satin differs from sateen in that it is woven using filament fibres such as silk or nylon whereas sateens are woven using short-staple fibres like cotton.