Aqueous ink
US5877235A · kind A · utility
41Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Jun 30, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The aqueous ink of the present invention comprises a suspension of a polymer, preferably a polyester or a polyester polyamide, having adsorbed a dye or a pigment, wherein the surface tension (.gamma.) and the viscosity (.eta.) of the ink at 20.degree. C. and the average particle size (d) of the suspended particles satisfy the following inequality (1): EQU 0.1.ltoreq..gamma..multidot..eta..multidot.d.ltoreq.11 (1) wherein the units of the parameters .gamma., .eta. and d are dyne/cm, cps, and .mu.m, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.