Latent image printing process and apparatus and substrate theref

Details Latent image printing process and apparatus and substrate theref Latent image printing process and apparatus and substrate theref

1994-12-21

1998-05-12

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...

430 9, 430 42, 430 56, 430151, 430200, 503204, 503206, B41M 530

Patent

active

057504628

ABSTRACT:
A latent image printing method and apparatus uses a substrate with one main surface having a covering comprising only one of a first pair of a color developer and color former dye in at least one selected latent imaging area defining a background color in conjunction with the one main surface, wherein the color developer and the color former dye react when mixed to produce a first spectral response which is visible relative to the background color and a continuous coating over the covering which is non-porous with respect to the other of the pair and solvent-resistant to the other of the pair. The coating above selected portions of the covering corresponding to a desired latent image is removed.

REFERENCES:
patent: 3840385 (1974-10-01), Yoshida
patent: 4869981 (1989-09-01), Wing et al.

Affiliated with

Also associated with

Rating

Latent image printing process and apparatus and substrate theref does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Latent image printing process and apparatus and substrate theref, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latent image printing process and apparatus and substrate theref will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-978901