Color former mixture

Details Color former mixture Color former mixture

1995-07-12

1997-10-28

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified color-former

106 21R, 4284022, B41M 5145, B41M 530

Patent

active

056817916

ABSTRACT:
The invention describes a colour former mixture comprising

REFERENCES:
patent: 4717423 (1988-01-01), Dyllick-Brenzinge et al.
patent: 5071480 (1991-12-01), Zink
patent: 5395948 (1995-03-01), Zink

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