Satin is a very delicate fabric and requires special care when washing and drying. It is therefore advisable to wash your scarf by hand.
The ideal is to soak it in a basin of lukewarm water (never hot) with a little white vinegar and sugar or soap flakes or a little shampoo. Be careful not to rub it, but to gently press it into the water, no more than five minutes.
Rinsing is done with cold water. If the most important thing for satin is that it does not lose its shine, you should know that after-washing is just as important a step as washing itself. After blotting it between two towels, let it dry in the open air, flat on a towel. (Be careful not to twist it and do not wring it, it may deform).It should be remembered that the satin is ironed when it is still damp. To keep its shine, pass a sponge soaked in vinegar water over the back of the scarf before ironing it.