Diamine Imperial Blue – Bleeds easily BUT as you can see, this ink when added to water is almost a deep purple with just a hint of cyan blue at the edges of the wash. It does react when subjected to bleach but only manages a half hearted white. Flows well when used for writing with a definite purple hue.
Diamine Sapphire Blue – Bleeds very easily when added to water with hints of purple and a gorgeous turquoise in the lighter washes. Turns a white gold colour when subjected to bleach. Flows well when used for writing with a hint of purple coming through.
Diamine Steel Blue – Bleeds easily BUT as you can see, this gorgeous dark ink when added to water breaks down into a deep greeny turquoise at the edges of the wash. Turns a neon white gold colour when subjected to bleach. Flows well when used for writing with a definite green hue to it.
All three inks are very pure and at the edges of the blue spectrum with no visible sediments. Ideal for painting as well as writing.
Ink samples kindly supplied by Ross at www.purepens.co.uk
FOUNTAIN PEN INK ART 