It's probably possible to frame something for a bit then pull it out, and have it look as if it weren't framed. But:
-- all display of art is bad for art. Even under UV glass and out of direct light and whatever, there will be fading on anything hung.
-- Nobody will ever want that art the way you framed it. And even if they could be talked into it, you're going to have to sell it for way less than the cost of print + framing...and probably be able to "prove" it's not, like, duct-taped to the backing or something.
If you want to frame something, it's best -- by a long shot -- to accept that you're stuck with that art for the long haul, unless you're willing to sell it on the cheap later.