| 摘要 |
A process of producing an aluminum beverage can body having a decorative surface exhibiting a dichroic effect when observed in white light. In the process, a can body is formed from a sheet of metal selected from the group consisting of aluminum and aluminum alloy by drawing and ironing, surfaces o f the can body are cleaned to produce a cleaned can body, a decorative structu re exhibiting a dichroic effect is applied to a surface of the cleaned can body , and the can body is subjected to finishing operations, wherein the decorativ e structure is applied by the steps of: applying a layer of dielectric materia l directly onto the metal of the cleaned can body without pre-treatment of the metal with a metal brightener, and forming a semi-transparent metal layer on or within said dielectric layer, the thickness of said dielectric material beneath said semi-transparent metal layer, and the thickness of said semi- transparent metal layer being made effective to produce a visible dichroic pattern when said can body is observed in white light. The invention also relates to can bodies decorated by the process of the invention, and to finished cans made from the can bodies.
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