Chrome-tanned leather, invented in 1858, is tanned using chromium sulfate and other salts of chromium. It is more supple and pliable than vegetable-tanned leather, and does not discolor or lose shape as drastically in water as vegetable-tanned. More esoteric colors are possible using chrome tanning. Chrome tanned leather is tanned using soluble chromium salts, primarily chromium sulfate. Chrome oil tanned leather is simply chrome tanned (as described above) but is also treated with oil that helps preserve the leather. It tends to be softer and pliable than any other tanned leather. The kind of leather most in use in the fashion and automotive industries is chrome-tanned, which uses chromium for tanning, and is usually painted with acrylic paints. Other forms of leather takes much longer to produce, and can't have as many imperfections as chrome-tanned because they can't be hidden with paint and removal, so it is more expensive.