Neckties
It is best to dry clean silk neckties. Keep in mind that they can be difficult to restore, even for professional cleaners. Some stains can be removed at home using dry cleaning fluid.
Nylon
Nylon’s static electricity attracts dirt and grime. If these particles work their way into the fabric, this can make restoring the original look more difficult. It is a good idea to wash nylon articles after each wear, with warm water and detergent. Rinse well, and drip dry right away. If ironing is necessary, use the lowest setting possible. Caution: Do not use liquid bleach on nylon fabrics.