PIGMENT-BASED VS DYE-BASED
What makes Pigma ink so special?
In the early ’80s, Sakura’s scientists invented pigment-based Pigma ink to improve upon unstable dye-based inks available at the time. The superior pigment-based inks are more chemically complex and 100 times larger than dye molecules making the ink less susceptible to damage from :
- UV rays
- Chemical degradation
- Pollution from contact with oils and other chemicals on papers
However, forming a practical application for these larger pigment particles was the obstacle that the researchers at Sakura had to overcome. Once the process was discovered how to reduce these particles to submicron size (1/25,000 of an inch), which allowed the ink to flow evenly through the narrowest of pen nibs, Pigma ink technology was created.
Research and development helped to create the perfect ink. Sakura then further developed their ink to be technologically superior. Single colour pigments are used to eliminate pigment separation, which translates to less fading and changing of colour. The ink dries to a neutral pH, neither acidic nor alkaline, which protects the paper or material used. Since pigments do not guarantee that the ink is permanent, resins are added to make it waterproof, making it universally compatible with other media such as watercolours, oils, acrylic paints, etc. The micron particles are small enough to remain stable within their water-based solvent, which promotes colour shade consistency and smooth ink flow.
The final result is archival quality Pigma ink that stands the test of time.