Image forming method and apparatus
US8240839B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M7/009
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The image forming method forms an image on a recording medium by using aqueous ink and treatment liquid. The ink contains coloring material, and the treatment liquid contains a component which reacts with the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the recording medium; an ink deposition step of ejecting and depositing droplets of the aqueous ink in accordance with image information, onto the recording medium on which the treatment liquid has been deposited in the treatment liquid deposition step; an ink drying step of drying an ink layer which has been formed on the recording medium by reaction between the treatment liquid deposited in the treatment liquid deposition step and the aqueous ink deposited in the ink deposition step, such that an amount of water originating from the aqueous ink and still remaining on the recording medium after the ink drying step is not more than 4.0 g/m2; and a fixing step of fixing the ink layer which has been dried in the ink drying step on the recording medium by applying heat and pressure to the ink layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.