I am not aware of any colored card stock that has a black core.....coordineations carries cardstock with different cores to use when sanding. Stampin' Up just got three exclusive colors....feel free to check out my blog.
What are you using it for? Can you layer? Stampin' Up black paper is solid color through out.
Sorry, not sure I helped much!
I have black paper with a black core, but I've never seen colored paper with a black core. I do think it's a line that Core'dinations NEEDS to come out with! But as Linda pointed out, paper with a differently colored core tends to be textured. If you do find some please come back and tell us where!
Thanks for the replies. I take graphics from 8 bit games (for example the original Super Mario Bros., Mega Man, etc.) and make cards from the pixel art. I layer the work by color, usually starting off of a black base.
Ideally, I'd like paper that would allow me to cut out my designs, and have a uniform black edge on my colors to add some dimension...without the hassle of having to trace each piece with a brush marker. Inking seems impossible because of all the tiny edges.
I was thinking Core'dinations had some, but I was thinking of their Black Magic line, which is black with a colored core instead of the other way around. You might be able to ink the edges using a marker instead of an ink pad, but depending on the volume in which you make these, that could get tedious.
I use Copics a lot to ink the edges of something. You have to be really careful with it so it doesn't bleed too much away from the edge - especially likely to happen with an interior corner. I've just started using the Tim Holtz Distress markers to do this, too, and they don't seem to bleed much. Still - would be such a pain for all the pieces you need. Your cards are really cool!