Infrared-absorbing cyanine dyes for laser ablative imaging
US5401618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1994 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Aug 16, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process of forming a single color, dye ablation image having an improved D-min comprising imagewise-heating by means of a laser, in the absence of a separate receiving element, a dye-ablative recording element comprising a support having thereon a dye layer comprising an image dye dispersed in a polymeric binder, the dye layer having an infrared-absorbing material associated therewith to absorb at a given wavelength of the laser used to expose the element, the image dye being substantially transparent in the infrared region of the electromagnetic spectrum and absorbs in the region of from about 300 to about 700 nm and does not have any substantial absorption at the wavelength of the laser used to expose the element, the laser exposure taking place through the dye side of the element, and removing the ablated image dye material to obtain an image in the dye-ablative recording element, wherein the infrared-absorbing material is a cyanine dye having a perfluorinated organic counterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.