Inkjet decals can be hard to work with - when you cut the decal make sure you leave a good couple of mm around the edge of your pattern, otherwise the ink will dissolve along the cut edge. A couple of coats of acrylic laquer will protect the image, but not the cut edge.
I've recently switched to colour laser decals after buying an incredibly cheap Samsung home colour laser (£99 - about $200) and the results are excellent - apply the decal & laquer afterwards, no spread of ink, no fades.