Heat transfer sheets

Details Heat transfer sheets Heat transfer sheets

1989-09-08

1991-02-05

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

049904841

ABSTRACT:
A heat transfer sheet is provided, which includes a base sheet and a dye carrier layer formed on one side of said base sheet, said dye carrier layer carrying a mixture of at least one dye expressed by the following general formula (I) with at least one other sublimable dye showing a maximum adsorption wavelength at from 560 to 700 nm and having a molecular weight of at least 345: ##STR1## wherein: R.sub.1 to R.sub.4 each are a C.sub.1 to C.sub.6 alkyl group, a cycloalkyl group or a phenyl group, provided that R.sub.2 may be a hydrogen atom or an alkoxy group and R.sub.3 and R.sub.4 may form together a ring.

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