Octopus Certified Document Inks - Dark Blue Maiora Alpha Oroblu Product Code: RO-50279

Product Code: RO-50279

Cap: Snap-cap

Writing Colour: Blue

Collection: Hemisphere Mars

Herbin Watercolor Drawing inks are perfect for drawing and writing

Octopus Certified Document Inks - Dark Blue Maiora Alpha Oroblu Product Code: RO-50279Document Inks for fountain pens Document inks with ISO 12757 2 certificate in 9 colours The development of our document inks for fountain pens took a total of 12 months. The focus was on selecting and testing the pigments to be used and their behaviour in the fountain pen, the flow properties during the writing process and the use of various additives to achieve the properties required for DIN ISO certification. The result is document proof inks for