It depends on the final output of the embossing, if I am to leave it
a different colour than the entire sheath, I emboss first before dyeing.
If the embossing will be dyed the same as the sheath, I now dye it
and then emboss, especially on lighter coloured sheaths, just works
better for me.
I don't dye down inside the sheath, if you are not careful you can
get transfer from the dye to the scales, depending on the knife of course.
This dye you are going to use, I highly recommend using the Fiebings
Black Oil based professional dye, there is another black dye that is
kinda like a two part deal, I think it's some kind of Marine stuff or has
Marine in the name some where. I Avoid that at all costs as it always
seemed to rub off on you, your clothes and about anything it came in
contact with, a two part thing that for me just didn't work. Where the
Fiebings really works very well !
Back to the embossing, if you are forming the sheath, you will want to
wait until you have it fully formed and dry so that all the give is taken
out of the leather and then emboss away.
I use a very thick block of steel to emboss on and also place smaller
blocks of aluminum beneath the leather to act as mini anvils.
and here's some steps where I emboss, dye around the embossing and
then use highliter to darken the area of the embossing to bring out details
highliter is a thicker goouey gunk that will wipe off but be left in the creases
of the embossing to help it look more 3d like;
after drying a little, wiping it down leaves this effect;
hope that helps some for you,
G2