[Marbling] The making of colour for marbling
I don't know what atragant gum is....gum tragacanth? Seems to me you maybe
don't have enough "wetting agent" ie.ox-gall. Try alcohol. Forget the
ox-gall until later as a dispersing agent as needed. Most alcohols will
work, use them sparingly.
It is hard to advise generically on paint making, as every pigment (and
every form of it...or whether it's pure or has filler of some sort) has
distinct chemical and physical properites. I have to treat each
differently. There is no one marbling paint formula. I have spent over two
decades fine tuning the process and am not finished yet, and sometimes it
can drive me mad! Since it is my livelihood.....well I keep at it through
the difficult times.
I do not use any color enhancing agents. My paints (at least the water
based ones) are geared towards the ability to attain a certain look....the
look of early papers, deep but a little muted. Not all marblers care for
this, and those who want a more intense color can use a paint such as
Colophon sells. I don't even know of any color enhancers, but maybe they
are out there.
Also a big mistake is using too much pigment, thinking you will attain a
deeper color. Pigments all have differing specific gravity, and if the
solution is very dense, it becomes heavier than the size bath, and the
color, while it may look intense on the bath ...by the time you lay the
paper, it has begun a slow sinking towards the bottom, and the color comes
up pale on the paper. Try the alchohol, and maybe less pigment this may