The difference between silk and satin is, silk is made from silkworms while satin is made using nylon, polyester, etc. Silk is a stronger fabric as compared to satin fabric.…
Are you wondering Can a duvet cover be used on a comforter? Yes, a duvet cover can be used on a comforter, it protects your comforter from dust as well as makes it look more elegant. So it's up to you if you want to use a duvet cover on the comforter you can else it's completely fine if you don't use it.
The main difference is that silk is a natural fabric and satin is a wrap-dominated weaving technique. Silk is shiny from both sides but satin has a glossy surface and dull back. Silk is the oldest fabric invented 12000 years ago in china but satin was found in middle age.
Knowing things around you, will be a great help for you if you are in doubt about the things that you do in your daily routine like how to wash cotton clothes, does polyester shrink, cotton is better or polyester, etc.