[Creating transparency in printed business cards]

Good stuff. It's hard finding this info out there but that helps a bunch. First time I saw a transparent business card in use was the company I work for so I'm very curious about the possibilities and limitations with creating designs on these.

[Creating transparency in printed business cards]

So if I were to attempt and draft something like this up, I can simply change the colors to any % opacity then export it as a .png in CMYK and the result should come out as I intended? 

Second question is, in theory if I were to make the background a semi-transparent white would that create a frosted look on the business card or is that mostly dependent on the kind of material that the card is printed on?

[Creating transparency in printed business cards]

That's what I would do is have them printed at a commercial business with the proper equipment. I just saw a lot of images of examples showing all the color being somewhat transparent as well, like the image I found online below.

[Creating transparency in printed business cards]

Thanks for replying. I'm actually interested in both types of design, opaque color and semi-transparent color because I have seen examples online that don't look too shabby. I'm just not sure yet which I would like to do for myself. If I get to a point where a client is also interested in having me do this for them, I would like a good grasp on how to achieve both ways.

So would a transparent business card with opaque color not require anything beyond say leaving the background empty in the design process? Or if I did want all the color to be transparent as well, what would need to be done for that, if anything?

[Creating transparency in printed business cards]

This is more of a general question rather than one directly related to the software; but I'm trying to design a transparent business card for myself and am currently wondering if it's as simple as setting the transparency of the colors then uploading the design somewhere to have it printed, or are there more steps required to achieving this? I am using Affinity Designer and cannot find any information about this on the web.

Also, I only see examples of transparent business cards with solid cards. Are gradients something that will come out fine on something like this as well or is it not a good idea?