CA2447835A1 - Wood fiberboard, in particular floor panel - Google Patents
Wood fiberboard, in particular floor panel Download PDFInfo
- Publication number
- CA2447835A1 CA2447835A1 CA 2447835 CA2447835A CA2447835A1 CA 2447835 A1 CA2447835 A1 CA 2447835A1 CA 2447835 CA2447835 CA 2447835 CA 2447835 A CA2447835 A CA 2447835A CA 2447835 A1 CA2447835 A1 CA 2447835A1
- Authority
- CA
- Canada
- Prior art keywords
- decoration
- top side
- underside
- wood
- wood fiberboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/043—Ornamental plaques, e.g. decorative panels, decorative veneers containing wooden elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/584—Scratch resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/16—Two dimensionally sectional layer
- Y10T428/161—Two dimensionally sectional layer with frame, casing, or perimeter structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/249925—Fiber-containing wood product [e.g., hardboard, lumber, or wood board, etc.]
Abstract
A wood fiberboard, in particular floor panel comprising an HDF support board with a top side and an underside, the top side having a decoration, preferably a wood or tile decoration, is distinguished in that the decoration is printed directly onto the top side of the support board and is covered by at least one layer of a transparent synthetic resin.
Description
Wood fiberboard, in particular floor panel The invention relates to a wood fiberboard; in particular a floor panel, comprising an HDF support board with a top side and an underside, the tap side having a decoration, preferably a wood or tile decoration, and to a process for producing such a wood fiberboard.
Floor panels with a wood-fiber support board are usually referred to as laminate ~~anels and have been commercially available for many years as a substitute for parquet flooring. The desired decoration (parquet, woodgrain, tiles, etc.) is printed onto a paper web, which is then coated with resin and rolled onto a roll.
At the floor manufacturer's, the decorative web which has been prefabricated in this way is positioned on the support board and pressed. As a result of the operations of printing the decoration on to the paper web, of subsequently sealing the paper web with synthetic resin and of then connecting the decorative layer to the support board by pressure and temperature, the dimensions of the paper web change. According to the person skilled in the art, the paper grows. The paper grows both in length (increase in length) and in width (increase in width). If this decorative board is then to be cut to size to form individual panels, the increase in length and width has to be taken into account because, otherwise, the decoration would be distributed unevenly on the individual panels. This would result in the floor made up of an unevenly distributed decorative layer having the decorations offset along the connecting edges of the panels. Even if the decorations are only offset by a few millimeters, they are obvious to the observer, this having an adverse effect or. the esthetic appearance and thus reducing the quality of the covered floor.
Floor panels with a wood-fiber support board are usually referred to as laminate ~~anels and have been commercially available for many years as a substitute for parquet flooring. The desired decoration (parquet, woodgrain, tiles, etc.) is printed onto a paper web, which is then coated with resin and rolled onto a roll.
At the floor manufacturer's, the decorative web which has been prefabricated in this way is positioned on the support board and pressed. As a result of the operations of printing the decoration on to the paper web, of subsequently sealing the paper web with synthetic resin and of then connecting the decorative layer to the support board by pressure and temperature, the dimensions of the paper web change. According to the person skilled in the art, the paper grows. The paper grows both in length (increase in length) and in width (increase in width). If this decorative board is then to be cut to size to form individual panels, the increase in length and width has to be taken into account because, otherwise, the decoration would be distributed unevenly on the individual panels. This would result in the floor made up of an unevenly distributed decorative layer having the decorations offset along the connecting edges of the panels. Even if the decorations are only offset by a few millimeters, they are obvious to the observer, this having an adverse effect or. the esthetic appearance and thus reducing the quality of the covered floor.
In order for it to be possible to carry out production with appropriate quality, the paper growth has to be detected and the saw which saws 'the panels from the support board has to be set correspondingly. Manual setting is very time-consuming. DE 100 19 054 C1 describes a process which is intended for cutting panels to size from a support board and by means of which the saw can be automatically adapted to the paper growth. Cameras are necessary for. this purpose, the cameras determining the actual position of defined points of the decoration. The actual position is then compared with the desired position and the deviation of the width or length dimension is determined, with the result that the saw can be set correspondingly.
In order to optimize the cutting, fairly high outlay is thus necessary, and this increases the cost of the production of high-grade panels. In order further to match the appearance of the laminate panel to the appearance of a natural-wood panel, a relief-containing female die may be provided in the press in which the decorative layer is pressed with t:he support board, a relief which corresponds to the woodgrain being stamped into the synthetic resin layer by means of said die.
Since the paper growth is not repi:oducible, it is not possible to make the relief corre~~pond fully with the decoration. The joints of a tiled surface cannot be stamped into the surface of the synthetic-resin layer since deviations would be immediate:Ly visible here.
Taking this problem as the departure point, the intention is to improve the wood fiberboard described in the introduction.
The problem is solved, in the case of a wood fiberboard of the generic type, in that the decoration is printed directly onto the top side of the aupport board and is covered by at least one layer of a transparent synthetic resin, preferably melamine resin or urea resin.
In addition, it is also possible for the decoration to be printed onto the underside of the support board and to be covered by at least one layer of a transparent synthetic resin. If appropriate, the underside and/or the top side of the support board may be provided with a relief corresponding to the decoration, this relief being pressed into the synthetic-re~~in layer.
By virtue of this configuration, the paper layer is eliminated. During pressing of 'the synthetic-resin layer, the decoration changes neither in length nor in width. The saw which is subsequently used to cut paizels to size, may be preset. It is possible to stamp into the synthetic-resin layer of the board designed according to the invention even the most intricate reliefs, which correspond precisely with the decoration. The production costs of high-quality panels are considerably reduced. A further saving is achieved in that the paper layer is dispensed with.
The decoration is preferably covered by two layers of a synthetic resin, the layer which is applied directly to the decoration having corundum particles for increasing the abrasion resistance.
A process for producing the wood fiberboard according to the invention is distinguished by the following steps:
a) a decoration, preferably a wood or tile decoration, is printed onto one or two sides of the board;
b) a screen roller is used to spread one or more synthetic-resin layers on the side with the decoration (top side) and the sides located opposite the latter (underside);
c) the synthetic-resin layers are pressed with the board in a known manner in a short-cycle-press.
The absence of paper layers prevents the resulting boards from warping, which could be produced by the inherent tensile force of the papers. Short pressing times may be realized as a result of the thin layers.
Instead of HDF (High Density Fiberboard), it is also possible for the support board to be made of MDF
(Medium Density Fiberboard) or also a conventional chipboard with a correspondingly finely distributed cover layer, from which, for example, smaller panels used for f~xrniture construction can then be sawn.
Boards which are produced in this way may also be used as floors in the [sic] they are sawn to form panels in a format appropriate to the decoration.
In order to optimize the cutting, fairly high outlay is thus necessary, and this increases the cost of the production of high-grade panels. In order further to match the appearance of the laminate panel to the appearance of a natural-wood panel, a relief-containing female die may be provided in the press in which the decorative layer is pressed with t:he support board, a relief which corresponds to the woodgrain being stamped into the synthetic resin layer by means of said die.
Since the paper growth is not repi:oducible, it is not possible to make the relief corre~~pond fully with the decoration. The joints of a tiled surface cannot be stamped into the surface of the synthetic-resin layer since deviations would be immediate:Ly visible here.
Taking this problem as the departure point, the intention is to improve the wood fiberboard described in the introduction.
The problem is solved, in the case of a wood fiberboard of the generic type, in that the decoration is printed directly onto the top side of the aupport board and is covered by at least one layer of a transparent synthetic resin, preferably melamine resin or urea resin.
In addition, it is also possible for the decoration to be printed onto the underside of the support board and to be covered by at least one layer of a transparent synthetic resin. If appropriate, the underside and/or the top side of the support board may be provided with a relief corresponding to the decoration, this relief being pressed into the synthetic-re~~in layer.
By virtue of this configuration, the paper layer is eliminated. During pressing of 'the synthetic-resin layer, the decoration changes neither in length nor in width. The saw which is subsequently used to cut paizels to size, may be preset. It is possible to stamp into the synthetic-resin layer of the board designed according to the invention even the most intricate reliefs, which correspond precisely with the decoration. The production costs of high-quality panels are considerably reduced. A further saving is achieved in that the paper layer is dispensed with.
The decoration is preferably covered by two layers of a synthetic resin, the layer which is applied directly to the decoration having corundum particles for increasing the abrasion resistance.
A process for producing the wood fiberboard according to the invention is distinguished by the following steps:
a) a decoration, preferably a wood or tile decoration, is printed onto one or two sides of the board;
b) a screen roller is used to spread one or more synthetic-resin layers on the side with the decoration (top side) and the sides located opposite the latter (underside);
c) the synthetic-resin layers are pressed with the board in a known manner in a short-cycle-press.
The absence of paper layers prevents the resulting boards from warping, which could be produced by the inherent tensile force of the papers. Short pressing times may be realized as a result of the thin layers.
Instead of HDF (High Density Fiberboard), it is also possible for the support board to be made of MDF
(Medium Density Fiberboard) or also a conventional chipboard with a correspondingly finely distributed cover layer, from which, for example, smaller panels used for f~xrniture construction can then be sawn.
Boards which are produced in this way may also be used as floors in the [sic] they are sawn to form panels in a format appropriate to the decoration.
Claims (11)
1. Wood fiberboard, in particular floor panel comprising an HDF support board with a top side and an underside, the top side having a decoration, preferably a wood or tile decoration, characterized in that the decoration is printed onto the top side of the support board and is covered by at least one layer of a transparent synthetic resin.
2. Wood fiberboard, according to Claim 1 characterized in that the decoration is printed on to the underside of the support board.
3. Wood fiberboard, according to Claim 1 or 2, characterized in that the decoration is covered by two layers of a synthetic resin, the layer which is applied directly to the decoration having corundum particles for increasing the abrasion resistance.
4. Wood fiberboard, according to one or more of Claims 1 to 3, characterized in that the top side has a relief corresponding to the decoration.
5. Wood fiberboard, according to Claim 4 characterized in that the underside: also has a relief corresponding to the decoration.
6. Process for producing a wood fiberboard according to Claim 1 or 2, characterized by the following steps:
a) a decoration, preferably a wood or tile decoration, is printed onto one or two sides of the board;
b) a screen roller is used to spread one or more synthetic-resin layers, preferably melamine-resin or urea-resin layers, on the side with the decoration (top side) and the sides located opposite the latter (underside);
c) the synthetic-resin layers are pressed with the board in a known manner in a KT-press.
a) a decoration, preferably a wood or tile decoration, is printed onto one or two sides of the board;
b) a screen roller is used to spread one or more synthetic-resin layers, preferably melamine-resin or urea-resin layers, on the side with the decoration (top side) and the sides located opposite the latter (underside);
c) the synthetic-resin layers are pressed with the board in a known manner in a KT-press.
7. Process according to Claim 4, characterized in that the first synthetic-resin layer applied to the decoration is provided with corundum particles.
8. Process according to Claim 6, characterized in that in the KT-press, a relief which corresponds to the decoration provided on the top side is stamped into the synthetic-resin layer.
9. Process according to Claim 8, characterized in that a relief which corresponds to the decoration provided on the underside is also stamped.
10. Process according to Claim 6, characterized in that the decoration is printed directly onto the top side and/or the underside of the support board.
11. Process according to one of Claims 6 to 8 or 10, characterized in that floor panels are sawn from the wood fiberboard.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002152863 DE10252863B4 (en) | 2002-11-12 | 2002-11-12 | Wood fiber board, in particular floor panel |
| DE10252863.2 | 2002-11-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2447835A1 true CA2447835A1 (en) | 2004-05-12 |
| CA2447835C CA2447835C (en) | 2013-07-09 |
Family
ID=32115483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2447835A Expired - Fee Related CA2447835C (en) | 2002-11-12 | 2003-10-31 | Wood fiberboard, in particular floor panel |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US7431979B2 (en) |
| EP (2) | EP2957690A1 (en) |
| CA (1) | CA2447835C (en) |
| DE (2) | DE10252863B4 (en) |
| ES (1) | ES2560313T3 (en) |
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-
2002
- 2002-11-12 DE DE2002152863 patent/DE10252863B4/en not_active Expired - Fee Related
- 2002-11-12 DE DE2002162235 patent/DE10262235B4/en not_active Expired - Fee Related
-
2003
- 2003-09-18 EP EP15002203.6A patent/EP2957690A1/en not_active Withdrawn
- 2003-09-18 ES ES03021069.4T patent/ES2560313T3/en not_active Expired - Lifetime
- 2003-09-18 EP EP03021069.4A patent/EP1420126B1/en not_active Expired - Lifetime
- 2003-10-31 US US10/697,561 patent/US7431979B2/en active Active
- 2003-10-31 CA CA2447835A patent/CA2447835C/en not_active Expired - Fee Related
-
2008
- 2008-04-01 US US12/060,288 patent/US8257791B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20080292795A1 (en) | 2008-11-27 |
| US20040123542A1 (en) | 2004-07-01 |
| DE10262235B4 (en) | 2010-05-12 |
| EP1420126A3 (en) | 2005-11-23 |
| CA2447835C (en) | 2013-07-09 |
| EP1420126B1 (en) | 2015-11-11 |
| US8257791B2 (en) | 2012-09-04 |
| ES2560313T3 (en) | 2016-02-18 |
| EP2957690A1 (en) | 2015-12-23 |
| EP1420126A2 (en) | 2004-05-19 |
| DE10252863B4 (en) | 2007-04-19 |
| DE10252863A1 (en) | 2004-05-27 |
| US7431979B2 (en) | 2008-10-07 |
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| MKLA | Lapsed |
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