Particle-size information
Review the current particle-size profile in the context of the intended filtration and printhead route.
FORMULATION GUIDE · AUG 2026
Surface-modified pigments: the inkjet question is bigger than colour.
For aqueous inkjet development, pigment selection starts with colour but succeeds or fails in the complete formulation, print process and validation plan.
Inkjet dispersionAqueous inkjet inkSurface-modified pigment
THE CORE IDEA
Surface chemistry changes the starting point for dispersion.
Self-dispersed pigment technology uses hydrophilic functional groups on the pigment surface to support dispersion in water-based systems. This can make the pigment surface itself an active part of the formulation discussion, alongside resin, humectant, additives and process conditions.
A surface-modified pigment is not a universal compatibility claim. Current product data and finished-ink testing remain necessary for each formulation and end use.
THREE FORMULATION QUESTIONS
Ask what the ink needs to do.
- 01
How will the ink move?
Define the printhead, filtration route, circulation conditions, print mode and target viscosity before comparing potential colorant platforms.
- 02
What does the vehicle require?
Consider resin or binder direction, pH range, co-solvents, humectants, surfactants and the substrate or application process.
- 03
What needs to remain stable?
Set a storage, transport and operating-stability plan that reflects the real development and production environment.
USEFUL DATA, NOT GENERIC PROMISES
Build the conversation around current measurements.
Physical properties
Discuss solid content, viscosity, pH, conductivity and surface tension with the actual ink vehicle in mind.
Storage and print checks
Confirm the observations and measurements that matter to the ink, printer, substrate and finished application.
WHERE TO START
Choose a route, then test the whole system.
Carboxylic and phosphate surface-chemistry platforms can provide different starting points for aqueous inkjet evaluation. The appropriate choice depends on the complete system; it should not be determined by chemistry name or colour index alone.
TECHNICAL ENQUIRY
Bring your ink route to the first discussion.
Share the print process, printhead, resin direction, target colour and evaluation requirements so the conversation can be focused on the relevant technical data.
Discuss an aqueous inkjet project →