Silk and Static
Silk is anti-static. How so? Anyone who has worn silk knows that silk gets notoriously static-y. Allow me to explain, especially as googling "silk anti static" will get you no where. Or more specifically, it will get you many pages of how to discharge a static charge from your silk. And it's all good advice. I think my favorite was from a physics blog, which shows silk has a moderate charge.
But that's not the whole story. If you live in a dry area, like, for example, the high desert of Nevada, than silk tends to be very static-y. There isn't enough moisture in the air to prevent a static charge from building up. Which, yes, will cause a static charge to build up. If you live somewhere with a bit more natural humidity, like, say, New Orleans, LA, then silk will almost never build up a static charge. Why is that?
Silk is essentially a protein fiber, consisting of fibroin and sericin. Like hair, it will go crazy with static in dry weather or when an electrical storm is on the way. But also like hair, silk is NOT prone to static in high humidity environments, due to the way it absorbs moisture. So to prevent static in silk, you "water" it. Water is in quotes, in this instance, because you don't to actually put water on the silk. Water won't hurt silk, but if you've starched it, it will leave spots and require re-starching.
So how do you "water" your silk? With steam. If you have a steam press, that works. Provided it does not leak water on a starched garment, you can steam press your silk. If you don't have a steam press, you can hang your silk over a humidifier. Lacking that, hang it in the bathroom, turn the shower on hot, and close the door. Let it steam for five to ten minutes. Please note, do not hang your silk IN the shower. The goal is not to actually get the silk wet. The goal is to allow the silk to absorb moisture from the air (Parker, p. 42).
Now, if you don't have time to steam your silk, that doesn't mean you don't wear it. There are other options to discharge the static build up. Wearing layers, with either a silk or cotton under garment, can prevent static. Wikihow recommends running a metal hanger through the garment, placing a safety pin in an inconspicuous location, or using a metal thimble, all of which will work just as well. And the old standby, which works for everything, is running a dryer sheet over your garment. All of these work to discharge a static build up in your silk. But to avoid it in the first place, try watering your silk ahead of wearing it.