Thermal dye transfer assemblage with low TG polymeric receiver mixture
US5942465A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1998 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Mar 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal dye transfer assemblage comprising: PA0 (a) a dye-donor element comprising a support having thereon a dye layer comprising a dye dispersed in a polymeric binder, said dye being: PA1 I) an electrically neutral, deprotonated, delocalized cationic dye precursor; PA1 II) a pendant basic dye of the formula D-(L-E).sub.m wherein D represents the residue of a dye, L represents a linking group, E represents a moiety with basic properties and m is an integer of 1-3; or PA1 III) a cationic dye precursor having the following structure: ##STR1## and (b) a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the dye-receiving element being in a superposed relationship with the dye-donor element so that the dye layer is in contact with the dye image-receiving layer, the dye image-receiving layer comprising a mixture of PA1 i) a polymer having a Tg of less than about 19.degree. C. and having no or only slight acidity; and PA1 ii) a polyester which has been polymerized in the presence of an aluminum salt and which contains an aluminum ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.