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.
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.
Softening Rough Silk After Washing
Air drying can make silk a bit crispy. Use these tips to soften it up. 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 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.
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.
Silk cannot be tumble dried - True
Silk is best dried flat on the type of airer designed for this purpose. Hanging it on a washing line or a clothes hanger may stretch the fibres, making the piece misshapen. Exposure to UV light may also cause discolouration.
Place all silk items in a fine mesh laundry bag to help keep the silk from tearing or pilling. Wash silk in the delicate or gentle cycle in cool water. Temperatures above 80 degrees Fahrenheit can damage your silk bedding.
To restore silk's smooth appearance and feel, you can try washing your pillowcases in a simple solution of one-fourth cup of distilled white vinegar and a gallon of water, following the hand-washing technique. A handheld steamer can also work to remove wrinkles from silk.
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.
Avoid the dryer
Lay wet silk clothing flat onto a clean, absorbent towel and roll it up in the towel to rid excess moisture. Unroll and repeat using a second dry towel, then lay flat on a drying rack or dry towel.
The tumble action in the dryer will cause damage to the silk fibers, and the high levels of heat could possibly lead to shrinkage as well. Polyester satin can sometimes be placed into the dryer, depending on if the item's care label allows for it.
DON'T dry a silk pillowcase in direct sunlight or in a heated dryer cycle. If you absolutely must use the dryer, use it on the air/no-heat cycle. DO steam silk bedding if you'd like to eliminate wrinkles.
Don't forget that silk loses much of its strength when it's wet and wringing it out will damage it. Lay out each wet piece on a clean, dry towel and roll it up. The excess water will soak into the towel. To finish drying, lay the garment flat.
A question we get asked often, is “how do I restore my silk pillowcase's shine?” - as over time and after washing, you may find that your silk pillowcase becomes dull and loses its brilliance. To restore some of the shine and softness that's been lost, you can give your silk pillowcase a mild white vinegar bath.
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.
Don't scrub or soak the material for too long as it is sensitive. To help your silks regain their lustre, in lukewarm or room temperature water, add some distilled vinegar and mix well. Soak the silk pieces in this water and for a maximum of 10 minutes and then remove from vinegar water.
Silk is a delicate fabric, and you'll want to make sure it stays beautiful even after you've cleaned it. Washing it at too high a heat can cause it to shrink and damage it. It may be worth getting your silk garment professionally dry cleaned to avoid damage if it's particularly precious to you.
If you frequently sleep with wet hair, we suggest investing in a silk pillowcase. Silk doesn't retain moisture well, thereby allowing your hair to dry faster. More importantly, it's slick and produces less friction when compared with a cotton or flannel pillowcase.
Sun and Water Damage. Silk is highly susceptible to damage from the elements. Even a tiny bit of water can leave a visible stain that's impossible to get rid of. And sunlight weakens the fibers of silk, resulting in tearing and fading.
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. However, using castile soap will make the silk soften up a lot quicker.
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.
Silk that is washed in hot water will also shrink. A silk garment will also reduce in size if it dried in a hot dryer.