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 Embossing foil

Details
Inventors: Brehm, Ludwig;
Assignee: Leonhard Kurz GmbH & Co. (Fuerth, DE)
Primary Examiner: Ryan; Patrick J.
Assistant Examiner:
Attorney, Agent or Firm: Marn; Louis E.

An embossing foil such as a hot embossing foil is of a laminate structure comprising in succession a backing foil, a separating layer, a transparent cover lacquer, a decorative layer means and a foundation layer of an at least translucent material. The decorative layer means successively comprises a first decorative layer adjacent to the cover lacquer layer, an opaque intermediate layer and a second decorative layer adjacent to the foundation layer. The opaque intermediate layer can be covered at least on one side with a single-colored layer over a large area thereof.

DETAILED DESCRIPTION I claim: 1.
An embossing foil of a laminate structure comprising: a backing foil; a separating layer; a transparent cover lacquer layer; a decorative layer means; and a foundation layer of a translucent material, the decorative layer adjacent to the cover lacquer layer, an opaque intermediate layer and a second decorative layer adjacent to the foundation layer.
2.
The embossing foil as set forth in claim 1 wherein said translucent material of said foundation layer is transparent.
3.
The embossing foil as set forth in claim 1 wherein said opaque intermediate layer is lacquer containing a metal pigment.
4.
The embossing foil as set forth in claim 1 wherein said opaque intermediate layer is covered on one side with a colored layer.
5.
The embossing foil as set forth in claim 4 wherein said colored layer is white.
6.
The embossing foil as set forth in claim 1 wherein one of said first and second decorative layers is a multi-colored printed layer.
7.
The embossing foil as set forth in claim 1 wherein said cover lacquer layer is comprised of: 4-5% by weight ester-soluble nitrocellulose, 25.
+-.
3% by weight silicone-modified polyester (solid matter 50%), 25.
+-.
3% by weight aromatic isocyanate (prepolymer, solid matter 50%) and remainder solvent to 100% by weight; said opaque intermediate layer having a thickness of between about 1 to 3 .
mu.
m and being of a weight to surface area of between about 1.
6 to 2.
7 g/m.
sup.
2.
8.
The embossing foil as set forth in claim 3 wherein said opaque intermediate layer is comprised of: 7.
+-.
2% by weight aromatic polyurethane resin, 5.
+-.
1% by weight ester-soluble nitrocellulose, 10.
+-.
2% by weight urethane-modified ketone resin (mp=140.
degree.
C.
, 7.
+-.
2% by weight aromatic isocyanate (solid matter 50%), 17.
+-.
3% by weight metallic pigment and remainder solvent to 100% by weight; said opaque intermediate layer having a thickness of between about 2 to 5 .
mu.
m and being of a weight to surface area of between about 1.
8 to 2.
8 g/m.
sup.
2.
9.
The embossing foil as set forth in claim 4 wherein said colored layer is comprised of: 7



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