Method of bar-code printing on ceramic members

Details Method of bar-code printing on ceramic members Method of bar-code printing on ceramic members

1997-07-29

1998-09-08

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430346, 430945, 430321, G03C 556

Patent

active

058043420

ABSTRACT:
A method of making a printing member for providing an erasable bar-code including providing a polymeric substrate having an insert cavity; forming an insert member having a writing surface composed of a non-porous zirconia ceramic ZrO.sub.2 that is alloyed with a secondary oxide selected from the group consisting of MgO, CaO, Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, a rare earth oxide, and combinations thereof, the non-porous zirconia alloy ceramic having a density of from about 5.6 to about 6.2 g/cm.sup.3 ; and providing an erasable bar-code image on the printing member by imagewise exposing the printing surface to electromagnetic radiation that transforms the printing surface from a stoichiometric to a substoichiometric state, thereby creating a printing surface having both image areas and non-image areas.

REFERENCES:
patent: 5290332 (1994-03-01), Chatterjee et al.
patent: 5298476 (1994-03-01), Hotta et al.
patent: 5336282 (1994-08-01), Ghosh et al.
patent: 5358913 (1994-10-01), Chatterjee et al.
patent: 5521709 (1996-05-01), Bossen et al.
patent: 5543269 (1996-08-01), Chatterjee et al.

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