how is satin made? what is it made of? is it vegan or is it non-animal friendly?
Satin is actually a weave pattern and describes a fabric with a long thread float on the fabric surface, which gives a lot of shine. It can be done with a number of different fibers - polyester, silk. even rayon. I think what you are asking about is the fiber silk, which makes the finest satin cloth, but it DOES usually come from silkworm cocoons, which are treated as you describe. So, satin is just a weave and can be vegan or not - you need to know the fiber, too. Silk, on the other hand, is a fiber, which does come from an animal and the animal is usually killed in the process of producing the fiber. By the way, wool is also considered an animal fiber, but the animal (usually sheep but can also be goat, camel, llama, or even certain kinds of antelopes) may be annoyed by being sheared but is almost never actually harmed in the process. The specific cord you're asking about doesn't indicate fiber content. Silk is expensive and almost certainly would be mentioned on the label, so this is almost surely a synthetic, most likely polyester.
At that price, it's almost surely synthetic, probably a polyester. Satin can be made from silk (non-moth friendly, very expensive) or any number of other smooth fibers; the name satin refers to the way the cloth is woven to produce a smooth finish, not to the fiber it's made of.
Unfortunately, as with many things, you can't always live exactly the way you want. I also know that when I eat a chocolate bar (which I don't often do, as I don't like them), I typically get about 6 ants along with it. Everyone does. I also know that over the course of my lifetime, if I'm an average human, I will swallow about 8 spiders in my sleep. So will you. By not electing to purchase meat, I'm making a small contribution to reducing the number of animals killed for human use, the number of people dying of starvation, and the environmental damage caused by the meat industry. I'm healthier and happier (and enjoy my food more) to boot. I'd rather do something small than nothing. I don't get any pleasure out of eating meat, so why should I bother? I pick my battles. I'm not going to refuse to get medical care because I know that the treatment was once tested on animals. I'm not going to refuse to take medication because it has a thin gelatin coating if it's important to my health. Some people might. Just like with eating meat, it's a personal decision and one that everyone needs to make for themselves. You do the best you can with what you have.