Method of improving coverage of chromogenic reaction product

Details Method of improving coverage of chromogenic reaction product Method of improving coverage of chromogenic reaction product

1997-03-06

1999-03-09

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Method of use, kit, or combined with marking instrument or...

503200, 503215, 503221, 503225, B41M 5136

Patent

active

058800638

ABSTRACT:
Coverage of a chromogenic reaction product over a substrate is improved by incorporating a color developer in the substrate and coating the substrate with a color former to form a colored reaction product.

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