I havnt done any embossed printing before, but i have used this chemical, you inject on top of a die cut decal, that hardens, and adds a "Globe" effect to it...looks pretty awesome
They may call it that, but it's not truly "embossed" unless it is pushed through from the backside.
i saw this effect being printed real time at a trade show (roland booth). it was slower than you have even see a print exit a printer. the printer had to over print and uncountable amount of times to build up the uv clear. i'd estimate it was about four square feet an hour from watching it.