Manufacturers since 1864, Diamine Inks relocated to this purpose built ‘state of the art’ factory in Liverpool in 1925, where they successfully carried on using the traditional methods and formulas for ink production. Over the years the company has changed hands and are now located close to the world famous Aintree Race Course
I think that Diamine Chocolate Brown is rather enjoyed among pen & inks users. What’s not to like? It’s saturated, well lubricated, the flow is good and the writing experience is enjoyable. It’s not safest ink for vintage sac pens and it tends to cause some nib creep (but ONLY after long time of not using the pen, like two months). If you clean pens rehularly, it won’t cause any issues.
There’s no useful water resistance to this ink. Personally I don’t care but if you do, look elsewhere.
All in all, I think this is good ink worth trying.
Drops of ink on kitchen towel
Maruman – Kaweco Classic Sport, broad nib
Tomoe River, Pelikan M805, medium nib
Leuchtturm 1917 – Kaweco AL Sport, broad nib
Maruman, Hero 5028, stub 1.9
Water – resistance