Dye transfer type thermal printing sheets

Details Dye transfer type thermal printing sheets Dye transfer type thermal printing sheets

1988-12-22

1991-01-15

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

049853961

ABSTRACT:
The present invention provides a dye transfer type thermal printing sheet which can give a color record image excellent in color reproducibility and weather resistance with middle shade including black and sufficiently saturated density. This printing sheet comprising a substrate on which are arranged, in face-sequence, coloring material layers which are different in hue and contain either of at least one dye represented by the formula (I), at least one dye represented by the formual (II) and at least one dye represented by the formulas (III)-(VI).

REFERENCES:
patent: 4614521 (1986-09-01), Niwa et al.
patent: 4771035 (1988-09-01), Murata et al.
patent: 4820685 (1989-04-01), Murata
patent: 4829047 (1989-05-01), Niwa et al.

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