Ink jet printing method
US5568173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Aug 26, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5218
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printing method is provided which method comprises the steps of: (1) image-wise protecting by means of an ink jet a liquid, called ink, in the form of droplets onto a receiving material containing at least one reagent A that with at least one reagent B contained in the ink droplets is capable of forming by color reaction a colored product, and (2) optionally uniformly heating said receiving material and/or uniformly exposing it to chemically active electromagnetic radiation during and/or after the deposition of said ink on said receiving material to start or enhance said color reaction, characterized in that from separate ink jets ink of different concentrations of said at least one reagent B or inks containing separately reagents A or B in different concentration is (are) deposited image-wise onto said receiving material containing said at least one reagent A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.