Encapsulation of pigment particles by polymerization
AssigneeHewlett-Packard Development Company, L.P.
InventorHui Liu
Life of this patent
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Abstract
A method of preparing an ink includes homogenizing a dispersion to coat pigment particles in the dispersion with a monomer. An ink for use in a printing device includes pigment particles encapsulated in a polymerized monomer, where the monomer has a polarity that is higher than a polarity of a surface of the pigment particles.
Claims20
A method of preparing an ink, said method comprising sonicating a first dispersion comprising at least one monomer prior to an introduction of pigment particles to be encapsulated in a polymerization of said at least one monomer.
A method of encapsulating pigment particles for use in an ink, said method comprising:
- separately homogenizing a first dispersion comprising said pigment particles and a second dispersion containing at least one monomer;
- mixing said first and second dispersions;
- further homogenizing the mixture of said first and second dispersions to coat said pigment particles with said at least one monomer;
- polymerizing said mixture of said first and second dispersions to encapsulate said pigment particles;
- configuring said ink to be dispensed from an inkjet print head;
- and
- loading said ink into an ink storage container of an inkjet print head.
Dependencies are inferred from the claim text.