Black dyes composition for ink-jet inks
US7288142B2 · kind B2 · utility
5Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Feb 4, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/328
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a black dyes composition for ink-jet printing ink comprising (A) a compound of the following formula (I)wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; (B) a compound of the following formula (II)wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; and (C) a compound of the following formula (III)wherein, R1 is —SO2CH2CH2OSO3H or —SO2CH═CH2 or —SO2CH2CH2OH; M is H, Na or Li; these compositions are particularly suitable for using in paper inkjet printing ink, and inkjet printing inks with good light-fastness and solubility are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.