Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Reexamination Certificate
1999-10-08
2001-04-10
Weisberger, Richard (Department: 1774)
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
C428S141000, C428S142000, C428S151000, C428S156000, C428S058000, C428S172000, C428S187000, C428S113000, C428S192000, C156S345420, C156S349000, C156S384000, C118S715000, C430S269000
Reexamination Certificate
active
06214439
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a composite laminate and a method for decorating panels with the laminate.
DESCRIPTION OF THE PRIOR ART
Panel decorating methods are known comprising a preliminary stage of pantograph-machining the surface of an MDF substrate to obtain shapes therein corresponding to a predetermined pattern, and a stage in which a thermoplastic laminate cladding sometimes having the color and graining of wood is applied. The panel prepared in this manner is heated to obtain partial softening of the cladding sheet, which by suitable working adheres to the thus modified surface of the panel.
Other methods have also been proposed using a composite material formed from two different-color layers of through-colored thermoplastic material. After being applied to the MDF panel, these are again pantograph-machined to remove the upper layer and reveal the lower layer, which in this manner creates the desired ornamental motif.
GB-A-2.034-251 discloses a board for use in making pictures or designs comprising a base sheet of which one side has a facing covered by a tansparent buffer layer which extends over the whole of the facing. The buffer layer is covered by a dense opaque surface which can be scratched off or removed by light surface engraving.
EP-A-0 019 221 discloses a sheet-like material based on a web of paper or plastic film and having a wood grain pattern applied to at least one lateral surface, at least one underlying printed image corresponding to a photographic color separation of a wood original being directly or indirectly printed on the web. The printed image is masked by a continuous transparent protective layer, and the transparent protective layer, bears a pore structure on the basis of a further color separation of the wood original.
An object of the present invention is to provide an improved composite laminate which by suitable treatment provides a pleasant outer appearance to the panel to which it is applied.
A further object of the present invention is to provide a composite laminate which may be applied to panels obtained with traditional pantograph machines.
BRIEF SUMMARY OF THE INVENTION
These and further objects will be apparent from the present invention which defines a composite therrmoplastic continuous laminate for cladding panels of wooden material, comprising a through-colored lower layer, an intermediate layer of transparent material, and a through colored upper layer of different colour from the lower layer. The expression “through-color” is intended to mean that the color of the layer extends through the layer from one side to the other thereof.
The present invention contemplates a method for decorating flat or shaped panels of wooden material with the thermoplastic composite laminate, wherein before or after said composite laminate has been applied to a panel to be decorated, localised removal of said upper layer is carried out until the transparent intermediate layer is reached.
REFERENCES:
patent: 3874966 (1975-04-01), Garcia
patent: 5275862 (1994-01-01), Ramadan
patent: 4032139 (1992-04-01), None
patent: 0019221 (1980-11-01), None
patent: 0019221 (1990-05-01), None
patent: 2034251 (1980-06-01), None
patent: 2291007 (1996-01-01), None
Lorenzon Stefano
Meneghin Dino
3B S.p.A.
Weisberger Richard
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