Transfer of azo dyes having a pyridine coupling component

Details Transfer of azo dyes having a pyridine coupling component Transfer of azo dyes having a pyridine coupling component

1989-06-12

1990-07-03

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

049391186

ABSTRACT:
Azo dyes are transferred from a substrate to a plastic-coated paper by diffusion with the aid of a thermal printing head, these azo dyes having the formula ##STR1## where D is the radical of a diazo component and

REFERENCES:
patent: 4614521 (1986-09-01), Niwa et al.

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