Digital BW, The Print

Paul,

> This says to me this ink is, in fact, a pigment ink.

The problem is that there is no hard and fast distinction between 'pigments' 
and 'dyes'. A colorant can be soluble in one solvent and insoluble in 
another, crystalline or non-crystalline, aggregated or non-aggregated, 
stable or unstable, and so on. They don't fall neatly into two groups. So I 
don't think it is worth trying to keep this distinction.

All colorants (substances that have color) are pigments in the original 
sense of the word (Latin pigmentum, pingere - to paint or color).

Bob Frost.

----- Original Message ----- 
From: "Paul Roark" <paul.roark@...>