Printing Film Base

[afrank]

How should the film base of any fil be printed on paper?
When printing a "correctly" color curve of the specific film, how should the film base appear on the paper?
Is Film base printed black on all films? (After color filter, ir for the orange mask)

Thanks for advice!

 

[Photo Engineer]

The film base is irrelevant in neg-pos printing. Just balance the print, and the base will appear as it should (if not masked out). It should be totally black as the print process takes the color into account.

PE

 

[afrank]

...just balance the print, and the base will appear as it should

That is precisely my question, how should it appear? Is it completely different for the same film and different shots? What about among films?
I ask because scanning negatives with high fidelity to a not_heavy_filtered print counterpart is very hard.

 

[Photo Engineer]

If it is a balanced shot for that film, then the edge will be black on a print.

PE