Inkjet fluid composition
AssigneeHewlett-Packard Development Company, L.P.
InventorsKai-Kong Iu, Junji Yamamoto, Zhang-Lin Zhou, Qianhan Yang
Life of this patent
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Abstract
An example of a thermal inkjet fluid composition includes a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm, a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, a polymeric binder, and a balance of water. The water soluble polymeric sensitizer includes a functionalized aromatic chromophore moiety, a polyether chain, and an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety.
Claims15
A thermal inkjet fluid composition, comprising:
- a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm;
- a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, the water soluble polymeric sensitizer including:
- a functionalized aromatic chromophore moiety;
- a polyether chain;
- and
- an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety;
- a polymeric binder;
- and
- a balance of water.
A printing method, comprising:
- ejecting a thermal inkjet ink composition on a substrate to form an ink layer, the thermal inkjet ink composition including:
- a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm;
- a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, the water soluble polymeric sensitizer including:
- a functionalized aromatic chromophore moiety;
- a polyether chain;
- and
- an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety;
- a polymeric binder;
- an anionic pigment;
- and
- a balance of water;
- and
- exposing the ink layer to the radiation wavelength ranging from about 360 nm to about 410 nm, thereby decreasing an initial pH of the thermal inkjet ink composition and fixing the anionic pigment to the substrate.
A printing method, comprising:
- ejecting a thermal inkjet ink composition on a substrate to form an ink layer, the thermal inkjet ink composition including an anionic pigment;
- ejecting a thermal inkjet overcoat composition on the ink layer to form a coated ink layer, the thermal inkjet overcoat composition including:
- a water soluble photoacid generator having substantially no absorbance at a radiation wavelength ranging from about 360 nm to about 410 nm;
- a water soluble polymeric sensitizer having absorption at the radiation wavelength ranging from about 360 nm to about 410 nm, the water soluble polymeric sensitizer including:
- a functionalized aromatic chromophore moiety;
- a polyether chain;
- and
- an amide linkage or an ether linkage attaching one end of the polyether chain to the functionalized aromatic chromophore moiety;
- a polymeric binder;
- and
- a balance of water;
- and
- exposing the coated ink layer to the radiation wavelength ranging from about 360 nm to about 410 nm, thereby decreasing an initial pH of the thermal inkjet overcoat composition and fixing the anionic pigment to the substrate.
Dependencies are inferred from the claim text.