Inkjet ink set and method of using same
View Patent ↗This invention pertains to an ink set for inkjet printing, in particular to an ink set comprising at least one ink comprising colorant and nonaqueous vehicle; and a fixing fluid comprising fixing agent and aqueous vehicle. The invention also pertains to a method of inkjet printing with this ink set.
1. An inkjet ink set comprising:
a first ink comprising a colorant in a nonaqueous vehicle; and
a fixing fluid comprising a fixing agent in an aqueous vehicle.
2. The ink set of claim 1 , further comprising at least four differently colored inks, at least one of the colored inks being a first ink.
3. The ink set of claim 1 , wherein the colorant in the first ink is selected from the group consisting of a pigment and a dye.
4. The ink set of claim 1 , wherein the colorant in the first ink is a self-dispersing pigment.
5. The ink set of claim 1 , wherein the nonaqueous vehicle has no more than about 10% by weight of water based on the total weight of the nonaqueous vehicle.
6. The ink set of claim 1 , wherein the fixing agent is an ionizable component.
7. The ink set of claim 2 , wherein the colorant in the first ink is selected from the group consisting of a pigment and a dye; the nonaqueous vehicle has no more than about 10% by weight of water based on the total weight of the nonaqueous vehicle; and wherein the fixing agent is an ionizable component.
8. The ink set of claim 7 , wherein the colorant in the first ink is a self-dispersing pigment.
9. A method of inkjet printing a substrate comprising the steps of jetting an ink set onto a substrate, the ink set comprising:
a first ink comprising a colorant in a nonaqueous vehicle; and
a fixing fluid comprising a fixing agent in an aqueous vehicle.
10. The method of claim 9 , wherein the ink set further comprising at least four differently colored inks, at least one of the colored inks being a first ink.
11. The method of claim 9 , wherein the colorant in the first ink is selected from the group consisting of a pigment and a dye.
12. The method of claim 9 , wherein the colorant in the first ink is a self-dispersing pigment.
13. The method of claim 9 , wherein the nonaqueous vehicle has no more than about 10% by weight of water based on the total weight of the nonaqueous vehicle.
14. The method of claim 9 , wherein the fixing agent is an ionizable component.
15. The method of claim 10 , wherein the colorant in the first ink is selected from the group consisting of a pigment and a dye; the nonaqueous vehicle has no more than about 10% by weight of water based on the total weight of the nonaqueous vehicle; and wherein the fixing agent is an ionizable component.
16. The method of claim 15 , wherein the colorant in the first ink is a self-dispersing pigment.
17. The method of claim 9 , wherein the fixing fluid is jetted onto the substrate before the first ink.
18. The method of claim 9 , wherein the area fill of the fixing fluid is less than the area fill of the first ink.
19. The method of claim 17 , wherein the area fill of the fixing fluid is less than the area fill of the first ink.