Method of marking using encapsulated etchant

Details Method of marking using encapsulated etchant Method of marking using encapsulated etchant

1994-06-21

2000-06-13

Yamnitzky, Marie

Etching a substrate: processes

Nongaseous phase etching of substrate

216 96, 216108, 216 54, 252 791, 252 792, B44C 122, C23F 100

Patent

active

060745703

ABSTRACT:
An identification label for permanently marking a metal or other etchable surface such as an automobile part with an identifying indicia is disclosed. The label has a protective cover sheet, a pressure sensitive adhesive irremovably affixed to the cover sheet, and a liner with a release coating removably affixed to the adhesive. An identifying indicia comprising an etchant in a visible vehicle such as a printing ink is printed on the adhesive at the interface of the removable liner and the adhesive so that when the liner is removed, the remaining portions of the label may be adhesively attached to the metal surface with the etchant of the identifying indicia in etching contact therewith. The identifying indicia will thus be etched into the surface of the part for a permanent marking of the part.

REFERENCES:
patent: 2441300 (1948-05-01), Vande Bunte
patent: 2962398 (1960-11-01), Jones
patent: 3963338 (1976-06-01), Altman
patent: 4687725 (1987-08-01), Wright et al.
patent: 4985484 (1991-01-01), Yoshida et al.
patent: 5044791 (1991-09-01), Lawson
patent: 5869160 (1999-02-01), Mason et al.

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