How to wash silk pillowcases?

Have you tried Borax? Soak them in warm water with the Borax overnight then wash them in Woolite.

Try a solution of lemon juice, salt, and water and let them soak.

I use Oxi-clean in warm water. Soak for a couple of hours. Then wash with your detergent, a scoop of powder Oxi-clean, and use vinegar in the rinse. It has even turned yellow items from bleach back to white. Try it you'll love it.

I have whitened items like silk scarves and doilies using baking soda and peroxide.

Soak it in Oxy-Clean and warm water, rinse it well, then set it in the sun to dry. The sun will help bleach it naturally.

I really like Biz. It really whitens everything quickly. It is sometimes hard to find so I buy it from Amazon

Try to use hydrogen peroxide if Oxi doesn't work. Can't beat good old sunshine.

Antique silk is ruined by bleach and laundry detergents. They also degrade in sunlight and air drying. Use silk laundry flakes and vinegar, then squeeze with towels while lying them flat.

This guide has advice for all fabric types - very useful: https://www.hometalk.com/diy/clean/fabric/how-to-wash-throw-pillows-without-removable-covers-44461189

Hi Ina: To remove yellowish discoloration and restore the original color to a silk pillowcase, by soaking it for about 5 mminutes in a sink of cool water and a tablespoon of white vinegar. When it's finished soaking, hand wash the pillowcase and dry as usual. When it's finished soaking, hand wash the pillowcase and dry as usual.

• If washing by machine, set it on the delicate cycle using cold water. Stop the machine before the spin cycle if washing particularly delicate pillowcases to prevent creases and wrinkles.If washing by hand, use a gentle touch. Do not twist or wring the fabric. Silk fabric is strong when dry but much weaker when fibers are wet.

Soak them in cool water with a tablespoon of white vinegar. Then hand wash.