Documental Ink - Octopus Fluids

The 9 different colours of Octopus Fluids "Document Inks" remain bright and luminous due to their pigmentation and adhesion promoters used. 
Conventional documentary inks often have only a very low pigment content. Most of their colouring is due to the additional dyes they contain. Dyes have the property of not being light-stable and therefore fade sooner or later. In the case of these document-fast inks, only the small amount of remaining pigments ensures document fastness, but the colour strength is lost. 
The Octopus Fluids "Document Inks", however, are more resistant to UV rays and do not lose any of their radiant colour strength even after a long time. We have not added any dyes and have used only the finest pigments. This ensures that writers can present their work over the long term without worrying about the colours fading or becoming illegible.

They are used in a similar way to standard fountain pen inks. They can be easily drawn from the 30ml ink jars into a converter or filled into standard fountain pen cartridges using a syringe or needle bottle.
Please take care not to let the fountain pen dry out. As the inks are waterproof and permanent, the resistance will also show in the dried-up fountain pen. It will then take a great deal of effort to clean the fountain pen.

Now you just have to decide which colour you will use to sign your documents in future.