Co-milled pigments in ink jet ink
US6132501A · kind A · utility
11Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous ink jet ink composition comprising a humectant in an amount of up to about 70% by weight of the composition, and from about 0.5% to about 30% by weight of a co-milled mixture of Pigment Yellow 74 and a pigment having the following structure: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.