Yellow dye-donor element used in thermal transfer and thermal tr

Details Yellow dye-donor element used in thermal transfer and thermal tr Yellow dye-donor element used in thermal transfer and thermal tr

1988-10-04

1989-05-23

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428913, 428914, B41M 5035, B41M 526

Patent

active

048331236

ABSTRACT:
A yellow dye-donor element for thermal dye transfer and having good characteristics for ink formation, and a thermal transfer sheet made using the yellow dye-element, having adequate sublimatability or vaporizability, good coloring, with a high printing density on receiving papers, and high storage stability and light stability of printing image, and employable as a yellow color among the three primary colors are provided. The above yellow color-element comprises a yellow dye dispersed or dissolved in a polymeric binder, which is represented by the formula (I): ##STR1## wherein R.sub.1 is an alkyl group of C.sub.1 -C.sub.12, an allyl group or a crotyl group; X is hydrogen, halogen or a C.sub.1 -C.sub.4 lower alkyl or C.sub.1 -C.sub.4 lower alkoxy group; Y is a C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.4 alkoxy, phenyl, tolyl, or phenoxy group; and A is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 O--, or --CH.sub.2 CH.sub.2 CH.sub.2 --.

REFERENCES:
patent: 3920720 (1975-11-01), Beecken
patent: 4701439 (1987-10-01), Weaver et al.

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