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.

Abstract: The invention contemplates a formed-metal sealing cap especially adapted for removable closure of a bottle or the like container having contents under internal pressure. A circumferential pleat of the cap skirt forms the bottom rim of the upper reusable portion of the cap, and the lower portion of the cap is severably but integrally connected to the pleated region of the upper portion. In the forms described, the severable connection is via a tear-off strip of cap material which is circumferentially united to the upper reusable cap portion on a circumferentially extending locally weakened alignment, and the weakened alignment is enveloped by the pleated region. Thread-on and clinch-type cap-to-bottle embodiments are described.