ties should be taken apart- the interfacing removed then WASHED and dried.
you can spritz with vinegar to remove the creases- or you can refold on the creases and use them for dresden plates- or any number of designs-
tie quilts are some of the most wonderful quilts!
if the ties are more polyester than silk you may need to add a stablizer to keep them from stretching- but i've not had too much trouble with stretching.
silk ties are FABULOUS to use- there is sooooo much fabric in one tie!
they wash up nicely.
you can cut them up and use them to make crazy quilt blocks- or log cabin blocks too---how ever you go about it it will be wonderful.
seams and interfacing removed i doubt very much if a dry cleaner would touch them---and it is not necessary anyway- just put them into a mesh bag so they don't tangle up too much= wash with small amount of detergent and cool water-
i toss mine right in the dryer= i've washed literally thousands of ties- and have never had one fall apart- or do anything else bad.