Without any experience with the particular hair type, my advice from family barbers, based on experience with more common (for most of us) hair types that are just "frizzie," has been that the most common difficulty with "tangles" is starting the comb at the scalp and trying to pull it through.

The recommendation is that you start at the tips, and pinch up a short bit of hair and then comb just that short end. When the tip is straighted as much as you can, you pinch up a slightly longer end and work the longer end straight.

If the comb hits a tangle that doesn't yield immediately, pulling on the tangled spot just binds it up tighter. You need to go below the tangle and get the ends straight first, so the tangle has someplace to go when you've worked your way get back up to it.

I really don't know how applicable this method may be with the hair you're dealing with. I do know that "barber shop conversations" generally end up with advice that you find an ethnic hair salon where you might find more knowledgeable advice about the many "black hair" concoctions that are available. Note that some of the preparations used by many adults may be quite strong, and you probably will need advice on which may not be safe for infants.

John