Claims
- 1. An ink jet printing process comprising the steps of;a) providing an inkjet printer in which a continuous stream of inkjet ink is emitted from a nozzle that is responsive to digital data signals; b) loading said printer with an inkjet recording element; c) loading said printer with an aqueous inkjet ink comprising water, a dye, a humectant, an organic solvent and a deflection-enhancing additive comprising a diethanolamine or 1-amino-2-propanol; and d) ejecting ink from a thermally-steered continuous ink jet print head onto one of said inkjet recording elements in response to said digital data signals.
- 2. The process of claim 1 wherein an asymmetrical application of heat controls the direction of said ink jet ink between a print direction and a non-print direction.
- 3. The process of claim 1 wherein said humectant comprises diethylene glycol monobutyl ether or 2-methyl-2,4-pentanediol.
- 4. The process of claim 1 wherein said organic solvent comprises a glycol ether.
- 5. The process of claim 4 wherein said glycol ether comprises dipropylene glycol monomethyl ether.
- 6. The process of claim 1 in which said ink jet ink contains about 0.1-6 molar equivalents of said deflection-enhancing additive relative to said dye and about 0.5-10% of said dye.
CROSS REFERENCE TO RELATED APPLICATION
Reference is made to commonly-assigned, copending U.S. patent application Ser. No. 09/745,662 filed of even date herewith, entitled “Ink Jet Ink Composition”, of Sharma, et al.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
6024785 |
Morimoto |
Feb 2000 |
A |
6079821 |
Chwalek et al. |
Jun 2000 |
A |