Preparation of ink jet inks with sodium N-methyl-N-oleoyl taurate
US5651813A · kind A · utility
19Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Nov 30, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/326
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for making ink jet inks, comprising the steps of: PA1 (A) providing a dispersion containing a pigment, a carrier for the pigment and as a dispersant sodium N-methyl-N-oleoyl taurate; PA1 (B) mixing the pigment dispersion with rigid milling media; PA1 (C) introducing the mixture of step (B) into mill; PA1 (D) milling the mixture from step (C) until the pigment particle size less than 1.5 .mu.m; PA1 (E) separating the milling media from the mixture milled in step (D); and PA1 (F) diluting the mixture from step (E) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.