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US 2002/0118265 A1Published application
Pigmented aqueous inks and ink set for ink jet printing
AssigneeIlford Imaging UK Limited
InventorsPeter Edward Rose, Jason Paul Thom, Nicholas Alexander Walker
Life of this patent
Estimating the term…
Abstract
There is provided a pigmented aqueous ink set comprising:— (a) A concentrated black ink having a pigment concentration up to 10% by weight; and (b) at least one dilute ink having a pigment concentration below that of the concentrated ink; wherein all the inks additionally comprise an aqueous carrier medium and at least one of the set of inks comprises a combination of carbon black and Pigment Blue 60.
Claims15
A pigmented aqueous ink set comprising:—
- (a) a concentrated black ink having a pigment concentration of up to 10% by weight;
- and
- (b) at least one dilute ink having a pigment concentration below that of the concentrated ink;
- wherein all the inks additionally comprise an aqueous carrier medium and at least one of the set of inks comprises carbon black and Pigment Blue 60.
1 more element
A pigmented aqueous ink set comprising:—
- (a) a concentrated ink having a pigment concentration between 3% and 5% by weight;
- (b) a dilute ink having a pigment concentration between 1% and 4% by weight;
- (c) a more dilute ink having a pigment concentration between 0.5% and 3% by weight;
- and
- (d) a most dilute ink having a pigment concentration between 0.1% and 1% by weight;
- wherein all the inks additionally comprise an aqueous carrier medium and at least one of the inks comprises carbon black and Pigment Blue 60.
3 more elements
Dependencies are inferred from the claim text.