Image dye for laser dye removal recording element
US5674661A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Nov 29, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A laser dye removal 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, and wherein the image dye comprises a cyan disazo dye having the following formula: ##STR1## wherein: R.sup.1, R.sup.3, and R.sup.4 each independently represents nitro, hydroxy, alkyl, aryl, fused aryl, fused heteroaryl, carboxy, alkylcarbonyl, arylcarbonyl, hydrogen, alkenyl, cycloalkyl, haloalkyl, cyanoalkyl, hydroxyalkyl, alkoxy, alkoxyalkyl, aryloxyalkyl, alkoxyalkylcarbonyl, aryloxyalkylcarbonyl, alkoxyalkoxyalkyl, hydroxyalkyl, hydroxyalkoxyalkyl, hydroxyalkoxyalkylamino, alkenyloxyalkyl, alkoxycarbonyloxyalkyl, alkenylcarbonyl, aryloxyalkylcarbonyl, aminoalkyl, cyanoalkylcarbonyl, haloalkylcarbonyl, alkylamino, arylamino, amino, halogen, sulfonamido or arylazo; PA1 or R.sup.3 and R.sup.4 can be joined together at the 4- and 5- positions of the ring to form a diaminoalkylene group; PA1 R.sup.2 represents hydroxy, hydrogen, alkyl or aryl; PA1 m is an integer of from 1 to 5; PA1 n is an integer of from 1 to 3; and PA1 x is an integer of from 1 to 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.