Color ink jet recording method
US5748208A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2107
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A color ink jet recording method is provided which can provide a color image having a higher quality and attain a print quality of a black ink comparable to that of the conventional monochrome print. A color ink jet recording method for printing on a recording medium, comprising the steps of: when a portion to be black is in contact with a color portion in a color image to be formed, printing, first, at least one color ink on a portion which is a part of the portion to be black and is in contact with the color portion on the recording medium, then printing a black ink on a portion which is to be black and is partially printed with the color ink according to the previous step, wherein a plural of color inks having a surface tension at 20.degree. C. of less than 40 dyn/cm and a black ink having a surface tension at 20.degree. C. of 40 dyn/cm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.