The first thing you need to know about how to dry silk pillowcases is that you should never put them in the dryer. The high heat of a dryer — even on a low setting — will destroy the silk's fiber.
Prepare to Wash
Silk can either be washed by hand or in the washer. If you decide on using the washer, set the machine to the gentle cycle, and place the silk pillowcase in a mesh laundry bag. This will protect it from snags or rough spots in the machine.
Exposing your garment to long bursts of sunlight can cause the colors to fade or even damage your silk fabrics. Do not tumble dry. Silk is very delicate and the high temperatures of the tumble dryer can shrink or damage your silks. Use a detergent for delicates.
Don't put silk items in the dryer. Heat can damage delicate silk fibers. If the dryer is absolutely necessary to use only 'air' setting for 15 minutes or less with NO fabric sheets or dryer balls. Remove sheets before completely dry.
Your silk should dry in about 45 minutes depending on temperature and conditions. DO iron sparingly, only on the coolest setting with sheets and turn your pillowcases inside out. A light steam will enable the iron to glide smoothly over the fabric.
Yes you can. However, whether your pillowcase is silk or cotton, going to bed with wet hair can attract bacteria. If your silk pillowcase absorbs some of your hair product, you can wash this out as easily as a cotton pillow case in most cases, but keeping in mind that silk is more delicate than cotton.
Detergent can stiffen silk
Even if you are hand washing your silks are per the instructions, if you are using a detergent, they can become stiff. Using a castile soap like Dr Bronner's instead can help a lot. Even after air drying, though, your silk may still be a bit stiff.
Silk is a very delicate material and you should generally never tumble-dry it in a dryer. Even on low heat, the warmth can make the fabric shrink, pucker or become otherwise damaged. Instead, air-dry your silk pieces. You can lay them flat or hang them to dry.
Washing on the wrong cycle.
Hot water can also damage silk. Do this instead: Wash silk on a silk or delicate cycle and cool water. Here are some guidelines for washing silk sheets; you can machine wash in cool to lukewarm water.
Activewear, loosely woven garments, silk, and items embellished with beads or embroidery are best dried on the delicate or gentle cycle. The low heat helps keep your clothes safe during the drying process, as these garments are prone to melting or stretching under high heat.
Never wash your satin garments in hot water, as they will shrink. As we said, if you want them to keep their shine, do not use the dryer for your satin-finish garments.
Silk will shrink in the dryer if the dryer is set to tumble dry medium or tumble dry high, however, silk should never be put into the dryer and should flat dry or be placed on a drying rack to dry.
But when it comes to washing silks, it's strongly advised that you avoid the laundry room and find time to hand-wash in cool water. 'Washing silk in hot or even warm water can cause shrinkage to your bedding,' explains James. 'It's best to hand wash your silk in cold water which is anything 86 Fahrenheit or below. '
If you find that the sheen of your silk clothing has lost its luster or shimmer and appears to have a white film or looks dull, the silk fibers may have become damaged due to improper cleaning or exposure to too much light or heat.
A silk pillowcase should be washed regularly and changed as often as you change your bedsheets. 'Typically we clean pillowcases and sheets together on a weekly or twice weekly schedule,' says Wayne Edelman. If you can, you should swap out your pillowcases for fresh once every few days.
To restore some of the shine and softness that's been lost, you can give your silk pieces a mild white vinegar bath. White vinegar helps to remove any residual soap in the fibres, and also restores lustre and softness to silk.
Softening Rough Silk After Washing
Gently run an iron over it on the "silk" setting while still slightly damp to soften it up.
To restore some of the shine and softness that's been lost, you can give your silk pillowcase a mild white vinegar bath. White vinegar helps to remove any residual soap in the fibres, and also restores lustre and softness to silk.
Once removed from the towel, lay the silk garment out flat on a drying rack without using any clothes pegs. The silk should be dried in the shade, as direct sunlight can cause its colours to fade. Silk tends to dry quite quickly, and you should fine that your garment is dry within around 30-60 minutes.
Silk pillowcases are just as likely to collect bacteria as cotton pillowcases. We recommend washing your pillowcase regularly in order to avoid bacteria buildup. Some claims purport that amino acids in silk can help reduce wrinkles and prevent breakage in the hair.
If you have oily hair, a silk pillowcase may not be the best choice, since a cotton pillowcase will absorb oil better, according to Aguirre. Silk pillowcases will be more beneficial if you have dry hair, or are experiencing breakage.
Sleeping on a silk pillowcase is actually a great idea for anyone with oily hair.