Asbestos is Bestos sew on patch

A relic from the 50's, when asbestos saved everything. what ever happened to it?

All patches are hand drawn, silk screened, hand made by me. They are safe to go in the washer, but may fray a bit, depending on how you sew it. Do not iron directly on the ink, it's best to iron from the backside, with a piece of fabric or paper between the iron and the patch.  Black and natural fabric is a heavy weight cotton canvas. Any other fabrics are either upcycled from old clothing, or thrifted and will vary in weight and may show slight sings of wear.