Aqueous ink composition and image formation method using the same
US5810915A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/0023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous ink composition includes a dye component which contains a water-soluble xanthene dye or a water-soluble phthalocyanine dye, each of which includes a moiety of formula (I) when the water-soluble dye is in the form of a free acid, ##STR1## a surfactant. By use of this aqueous ink composition, a method of forming images on an image receiving medium is performed which includes the step of ejecting the aqueous ink composition in the form of droplets by the application of thermal or mechanical energy thereto onto an image receiving medium with a Stockigt size degree of 3 seconds or more as defined in the Japanese Industrial Standards P-8122.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.