Embossed holograms formed on hard metal surfaces

Details Embossed holograms formed on hard metal surfaces Embossed holograms formed on hard metal surfaces

1989-02-15

1990-02-13

Arnold, Bruce Y.

Printing

Inkers

Roller

350 36, 29DIG37, 101 32, G03H 118

Patent

active

049001116

ABSTRACT:
Embossed holograms or diffraction patterns are formed on hard, unembossible metal substrates such as steel sheet metal. The hard metal substrate has a soft embossible metal layer such as tin formed on it, and holograms are embossed thereon by means of a surface relief, metal master. The soft metal layer must be sufficiently thick to accommodate the deepest surface relief pattern. For tinplate, the embossing can be preformed at room temperature. Among other things, the process produces tinplates and tin cans with embossed holograms.

REFERENCES:
patent: 4725111 (1988-02-01), Weitzen et al.
Metals Handbook, 8th Edition, vol. 1, "Properties and Selection of Metals", pp. 617-618.
Metals Handbook, 8th Edition, vol. 2, "Heat Treating, Cleaning and Finishing", pp. 4-56 to 4-57.
Tool and Manufacturing Engineers Handbook, 4th Edition, vol. II, "Forming", pp. 1142-1143.
Metals Handbook, Ninth Edition, vol. 2: Properties and Selection: Nonferrous Alloys and Pure Metals, p. 475.

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