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US 6,634,516 B2Granted
Color changing closure for bottling applications
AssigneeFabricas Monterrey, S.A. de C.V.
InventorJose Luis Martinez Carballido
Life of this patent
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Abstract
One embodiment of the present invention provides a metallic closure, which includes: a metallic shell; and a thermochromic ink layer on a surface of the shell.
Claims19
A metallic crown closure, comprising:
- a metallic shell, having an upper and lower surface,
- wherein said upper surface comprises:
- at least one first coating thereon which comprises at least one non-thermochromic printing ink layer, and
- at least one second coating on said first coating comprising at least one thermochromic ink layer;
- wherein said thermochromic ink layer changes from transparent to opaque within a temperature range of 0° C. to 60° C. or wherein said thermochromic ink layer changes from opaque to transparent within a temperature range of 0° C. to 60° C.
2 more elements
Dependencies are inferred from the claim text.