Sorry

[Hammer]

I've already posted this at the end of an earlier thread, but thought it may get more exposure if I posted it on it's own, so here goes. I know mixing different brands of inks is not advisable, but how about some comments on the following. How bad is it to mix white of one brand (Iron Butterfly) into colors of another brand (Mom's, Millenium) I just split some two ounces bottles into 2- one ounce bottles, straight color in one and a mix of 1part IB white, to 20parts Mom's. Have I just wasted all that ink? The color variance is a very subtle change in the original shade. I figured a 20:1 mix ratio, shouldn't have any adverse effects on the Mom's even if it wasn't mixed with Mom's white. Let me know....Please.

[imported_NeedleJack]

Provided that the two dispersions of the inks that you speak of are entirely different your outcome would basically leave you with a less thick white in regards to the mom's. The actual pigment in reference to white is the same across the board "Titanium Dioxide". Regarding your color wheel colors - Starbrite, Iron Butterfly, Intenze, Millinium, etc. one red my vary from another even though they may use the same Color Index.

Remember - Pigment is Pigment. Dispersion and Suspension are what is different. Dispersion is what keeps the actual pigment from seperating and suspension is just that - usually a mixture of alcohol, water, etc. etc.
So in regards to your question - I would not say that there is a hard fast rule for ratios in reference to different brands. If anything, armed with knowledge, you should be able to make a pretty good command decision about your level of comfort regarding mixing. (wow - that was a mouthful).

[Hammer]

Boy that was a mouthful! Thanks for the reply NJ, but I may not have explained exactly what I meant, per your response. I took a two ounce bottle of lets say Mom's Pink Pussy Cat, from there I devided the two ounce bottle of the pink into two one ounce bottles, and added some Iron Butterfly white to one of the one ounce bottles, thus creating two slightly different shades of pink. This was a mix ratio of 20 parts of the Mom's Pink to 1 part of the Iron Butterfly white. Hardly enough of the white, I would believe, to change any of the factors in regards to either the dispersion and suspension. Would you agree? I have been adding white in the ink cups to various colors to lighten their values, and I would tend to believe that the mixing in the ink cups of the two different brands of inks, would be a much greater factor in throwing the dispersion and suspension out of whack. Yes or no? I was using pink as an example. I did this with different bottles of greens, blues, and reds.

[FORGIVEN]

apples with apples ...oranges with oranges ....you'll see