Dyes and dye-donor elements for thermal dye transfer recording

Details Dyes and dye-donor elements for thermal dye transfer recording Dyes and dye-donor elements for thermal dye transfer recording

1993-04-08

1994-06-28

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Imagewise heating, element or image receiving layers...

430338, 430944, 430964, 430517, 430522, 8471, 503227, G03C 554, G03C 172, G03C 516

Patent

active

053246217

ABSTRACT:
Dye-donor element for thermal dye transfer comprising at least one magenta dye having extremely low side absorption in the blue and red regions of the spectrum, said dye corresponding to the general formula (I): ##STR1## wherein R.sup.1 is H, (cyclo)alkyl, or aryl; X represents the atoms completing a heterocycle; Z is an electron-withdrawing group; Y is an electron-withdrawing group or --N(R.sup.2)R.sup.3 ; R.sup.2 and R.sup.3 together represent the atoms completing a heterocycle; or R.sup.2 and R.sup.3 together represent .dbd.C(R.sup.4)R.sup.5, or each of R.sup.2 and R.sup.3 represents (same or different) (cyclo)alkyl, aryl, or an electron-withdrawing group; each of R.sup.4 and R.sup.5 (same or different) represents H, (cyclo)alkyl, aryl, a heterocycle, SO.sub.2 R.sup.6, COR.sup.6, CSR.sup.6, POR.sup.6 R.sup.7, OR.sup.8, NR.sup.8 R.sup.9, SR.sup.8, or R.sup.4 and R.sup.5 together represent the atoms completing an aliphatic ring or a heterocycle, each of R.sup.6 and R.sup.7 (same or different) represents (cyclo)alkyl, alkenyl, aryl group, alkyloxy, aryloxy, alkylthio, arylthio, amino, a heterocycle, or R.sup.6 and R.sup.7 together represent the atoms completing a 5- or 6-membered nucleus, and each of R.sup.8 and R.sup.9 (same or different) represents (cyclo)alkyl, alkenyl, aralkyl, aryl, a heterocycle, or R.sup.8 and R.sup.9 together represent the atoms completing a 5- or 6-membered nucleus.

REFERENCES:
patent: 4954478 (1990-09-01), Taguchi et al.
patent: 5026677 (1991-06-01), Vanmaele
patent: 5147844 (1992-09-01), Weber et al.
patent: 5168094 (1992-12-01), Shuttleworth et al.

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