Ink, image recording process, ink cartridge, recording unit, ink set, crust-preventing method and image forming apparatus
US6547381B2 · kind B2 · utility
32Cited by
17References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14475
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink comprises a coloring material and an aqueous medium wherein the coloring material contains a self-dispersing type carbon black, in which self-dispersing carbon black a hydrophilic group combines with the surface of a carbon black directly or through another atomic group, and which ink contains potassium ion in an amount of 0.6% or more of the weight of the carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.