Embossing foils
First Claim
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1. An embossing foil comprising a backing foil having first and second surfaces, and on said first surface of said backing foil a transfer layer means which is releasable therefrom, said transfer layer means including:
- a diffraction layer having first and second surfaces, and comprised of, at least in part, a protective lacquer, said diffraction layer having a portion thereof configured to provide an optical diffraction structure; and
a magnetic layer having first and second surfaces and comprising a dispersion of magnetisable particles in a binding agent, said first surface of said diffraction layer being disposed towards said first surface of said backing foil, and said second surface of said diffraction layer lacquer being disposed towards said first surface of said magnetic layer.
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Abstract
A hot embossing foil includes, besides a magnetic layer, a layer which has a structure producing a diffraction effect such as a hologram. The foil may also be provided with a signing layer which in the operational condition of the foil is at the exposed surface thereof to which writing can thus be applied, while nonetheless permitting detection of the diffraction-effect structure.
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Citations
21 Claims
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1. An embossing foil comprising a backing foil having first and second surfaces, and on said first surface of said backing foil a transfer layer means which is releasable therefrom, said transfer layer means including:
- a diffraction layer having first and second surfaces, and comprised of, at least in part, a protective lacquer, said diffraction layer having a portion thereof configured to provide an optical diffraction structure; and
a magnetic layer having first and second surfaces and comprising a dispersion of magnetisable particles in a binding agent, said first surface of said diffraction layer being disposed towards said first surface of said backing foil, and said second surface of said diffraction layer lacquer being disposed towards said first surface of said magnetic layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a diffraction layer having first and second surfaces, and comprised of, at least in part, a protective lacquer, said diffraction layer having a portion thereof configured to provide an optical diffraction structure; and
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19. An embossing foil comprising a backing foil having first and second surfaces, and releasably carried on said first surface of said backing foil a transfer layer means adapted to be applied to a substrate to which it is to be secured, whereafter said backing foil is to be peeled off, said transfer layer means comprising:
- a magnetic layer formed by a dispersion of magnetisable particles in a binding agent; and
between said magnetic layer and said backing foil a diffraction layer having first and second surfaces and comprising, at least in part, a protective lacquer, and having a portion thereof configured to provide an optical diffraction structure. - View Dependent Claims (20, 21)
- a magnetic layer formed by a dispersion of magnetisable particles in a binding agent; and
Specification