The Artist’s Handbook of Materials and Techniques: Ralph Mayer

Inks  P.549  Chinese:  ink sticks – rubbed with water on stone blocks or mortar.  More complex than Indian.  Liquid Indian ink:  waterproof and soluble types.  Both can be diluted when liquid.  Insoluble:  made with shellac/borax. [Windsor and Newton shellac – they also do a soluble liquid Indian ink]  Coloured inks – not permanent.  Writing ink – permanence not good enough for artistic use.  Felt-tip markers – tips of felt or nylon.  Useful for sketching and drawing.  Colours mostly soluble dyes and not permanently light-proof – black the best though.  Some are refillable.