Method for achieving high quality aqueous ink-jet printing on plain paper at high print speeds
US6428160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/0022
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for ink-jet printing on a recording medium is provided which includes the steps of jetting aqueous ink drops on paper in the form of an image. The aqueous ink used is a slow-drying (high-surface tension) ink which does not penetrate the paper/paper fibers for a relatively long time. Prior to penetration of the paper/paper fibers, the water in the droplet is quickly evaporated from the ink while still resident on the paper surface. The evaporation process is substantially completed prior to an additional liquid ink being jetted onto the same or adjoining location of the recording medium. The evaporation is rapid enough to prevent the resident ink from substantially migrating/wicking to any adjacent location or into the recording medium. Further the drying energy is transferred to the resident ink spots from the same direction as the printheads ensuring less energy requirement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.