Process for producing decorative or informative patterns on obje

Details Process for producing decorative or informative patterns on obje Process for producing decorative or informative patterns on obje

1988-02-02

1988-11-22

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156652, 156656, 156665, 252 792, 252 793, B44C 122, C03C 1500, C03C 2506, C23F 102

Patent

active

047863625

ABSTRACT:
According to the invention a method for producing decorative or informative patterns on objects made of plated metal sheets is disclosed. The procedure is to remove the outer plated layer mechanically or chemically as far as at least one of the lower layers in the shape of the desired pattern. The object thus obtained, with the exposed lower layer or layers, is then treated in one and the same surface treatment bath, with which the outer and the inner layers react differently. It is advantageous to use aluminum of different degrees of purity for plated layers and to use a polishing bath for the surface treatment.

REFERENCES:
patent: 1862231 (1932-06-01), McFarland
patent: 2354756 (1944-08-01), Keuffel et al.
patent: 2731333 (1956-01-01), Ko et al.
patent: 3197391 (1965-07-01), Bowers
patent: 3503815 (1970-03-01), Johnson
patent: 3839163 (1974-10-01), Kaneda et al.
patent: 4242378 (1980-12-01), Arai
patent: 4543153 (1985-09-01), Nelson
Chemical Abstracts, Band 95, No. 4, Aug. 1981, Seite 537, Zusammenfassung No. 69897b, Columbus, Ohio, US; and Translation of JP-A-81 10 999 (Fujita Metal Trading Co., Ltd.), 11-03-1981.

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