Patent US4631222A successfully refreshed from Google Patents.
US4631222A
Expired / Lapsed
US
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Embossing foils
Assignee: Leonhard Kurz Stiftung and Co KG
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Filing: 1985-05-16
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Granted: 1986-12-23
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Expires: 2005-05-16
Abstract
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.
Inventors
- 👤 Helfried Sander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:41
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/73; G11B5/7368; G03; G03H; G03H1/00; G03H1/02; G03H1/024; G03H1/0244; G03H1/0272; G03H1/0276; G03H1/028; G03H2250/00; G03H2250/36; Y; Y10; Y10S; Y10S283/00; Y10S283/904; Y10S428/00; Y10S428/913; Y10S428/914; Y10S428/915; Y10S428/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24893; Y10T428/24901; Y10T428/24917
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
122 words
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.
Claim 2
Dependent Claim
122 words
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.
Claim 3
Dependent Claim
18 words
An embossing foil as set forth in claim 1 wherein said optical diffraction structure provides a holographic effect.
Claim 4
Dependent Claim
40 words
An embossing foil as set forth in claim 1 and further including at said second surface of said magnetic layer an adhesion promoting layer for securing said transfer layer means to a substrate to which it is to be applied.
Claim 5
Dependent Claim
24 words
An embossing foil as set forth in claim 1 wherein said optical diffraction structure is embossed onto said second surface of said diffraction layer.
Claim 6
Dependent Claim
41 words
An embossing foil as set forth in claim 1 wherein said diffraction layer comprises a layer of protective lacquer forming said first surface of said diffraction layer, and a layer of non-magnetisable metal disposed adjacent to said layer of protective lacquer.
Claim 7
Dependent Claim
24 words
An embossing foil as set forth in claim 5 wherein said layer of non-magnetisable metal is a layer of aluminum applied by vapour deposit.
Claim 8
Dependent Claim
25 words
An embossing foil as set forth in claim 5 wherein said layer of non-magnetisable metal is a layer of aluminum alloy applied by vapour deposit.
Claim 9
Dependent Claim
83 words
An embossing foil as set forth in claim 1 and further including between said first surface of said backing foil and said first surface of said diffraction layer, a layer of lacquer which can be written upon to constitute a signing layer and which after removal of said backing foil, forms an exposed surface of the embossing foil, said signing layer being applied in a region-wise manner such that said optical diffraction structure is still recognisable from the side of said signing layer.
Claim 10
Dependent Claim
33 words
An embossing foil as set forth in claim 8 wherein said signing layer is provided in surface portions of the foil, which are demarcated from surface portions at which said structure is provided.
Claim 11
Dependent Claim
46 words
An embossing foil as set forth in claim 9 wherein surface portions of said diffraction layer which are not covered by said signing layer portions are covered with a layer of clear lacquer of corresponding thickness for forming a flat surface on said transfer layer means.
Claim 12
Dependent Claim
21 words
An embossing foil as set forth in claim 10 wherein said layer of clear lacquer is formed by a release lacquer.
Claim 13
Dependent Claim
17 words
An embossing foil as set forth in claim 10 wherein said layer of clear lacquer is coloured.
Claim 14
Dependent Claim
32 words
An embossing foil as set forth in claim 8 wherein said signing layer is provided between said backing foil and said diffraction layer, only extending over the latter in a grid-like pattern.
Claim 15
Dependent Claim
45 words
An embossing foil as set forth in claim 13 wherein surface portions at which said diffraction layer is not covered by said signing layer are covered with a layer of clear lacquer of corresponding thickness for forming a flat surface on said transfer layer means.
Claim 16
Dependent Claim
21 words
An embossing foil as set forth in claim 14 wherein said layer of clear lacquer is formed by a release lacquer.
Claim 17
Dependent Claim
17 words
An embossing foil as set forth in claim 14 wherein said layer of clear lacquer is coloured.
Claim 18
Dependent Claim
15 words
An embossing foil as set forth in claim 8 wherein said signing layer is coloured.
Claim 19
Dependent Claim
29 words
An embossing foil as set forth in claim 1 wherein at least one of said diffraction layer and said magnetic layer and said layer of protective lacquer is coloured.
Claim 20
Dependent Claim
107 words
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.
Claim 21
Dependent Claim
107 words
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.
Claim 22
Dependent Claim
25 words
An embossing foil as set forth in claim 19 and further including between said diffraction layer and said backing foil a further layer of lacquer.
Claim 23
Dependent Claim
26 words
An embossing foil as set forth in claim 20 wheein said further layer comprises a lacquer which can be written upon to constitute a signature surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |