EP0560870B1 - Parkettstruktur und verfahren zu ihrer herstellung - Google Patents

Parkettstruktur und verfahren zu ihrer herstellung Download PDF

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Publication number
EP0560870B1
EP0560870B1 EP92900967A EP92900967A EP0560870B1 EP 0560870 B1 EP0560870 B1 EP 0560870B1 EP 92900967 A EP92900967 A EP 92900967A EP 92900967 A EP92900967 A EP 92900967A EP 0560870 B1 EP0560870 B1 EP 0560870B1
Authority
EP
European Patent Office
Prior art keywords
parquet
wood
lacquer
resin
varnish
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.)
Expired - Lifetime
Application number
EP92900967A
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English (en)
French (fr)
Other versions
EP0560870A1 (de
Inventor
Yrjö AHO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AHO Jyrki
CASSERLY JUTTA
Original Assignee
AHO JYRKI
CASSERLY Jutta
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AHO JYRKI, CASSERLY Jutta filed Critical AHO JYRKI
Publication of EP0560870A1 publication Critical patent/EP0560870A1/de
Application granted granted Critical
Publication of EP0560870B1 publication Critical patent/EP0560870B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • 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
    • E04F15/047—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 with a butcher-block like top surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0207—Pretreatment of wood before impregnation
    • B27K3/0214—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0107—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/07—Joining sheets or plates or panels with connections using a special adhesive material

Definitions

  • the present invention relates to a parquet structure, wherein the direction of wood grains constituting the parquet surface layer is perpendicular or at an acute angle relative to the level of a parquet surface.
  • the invention relates also to a method for manufacturing a parquet, said method comprising the following operations:
  • An object of the invention is to provide a parquet structure and its manufacturing method, whereby even the otherwise good wear resistance and hardness of vertical-grain wood can yet be substantially improved while providing for an effective additional protection against the penetration of moisture and an effective binding against the forces of remaining moisture induced movements while, at the same time, the amount of an expensive parquet lacquer or varnish can be conventional.
  • the manufacturing of the parquet structure of the invention proceeds as follows.
  • a polygonal balk of fresh wood is cut perpendicularly or at an acute angle to the wood grains into blocks of suitable thickness (e.g. 14 mm thick).
  • These wood blocks a hexagonal example being shown in fig. 2, are impregnated with a water-soluble polyalcohol, e.g. polyethylene glycol (PEG), which is allowed to absorb and take effect in the wood blocks by replacing cell-wall water therein.
  • PEG polyethylene glycol
  • Absorption can be intensified by a thermal treatment, wherein the wood blocks are heated in a microwave oven and the non-diluted, fluidization-heated PEG is applied as a film to a wood block whose internal vacuum accelerates the absorption of PEG into wood.
  • the water-soluble impregnant replaces a sufficient amount of the cell-wall water in wood cells. This prevents the post-movements (dimensional variations) of wood material caused by seasoning cracks and moisture fluctuations. It is well known that the moisture-induced movements of wood result explicitly from the amount of water contained in cell walls and from the swelling and shrinking of a cell wall caused by the fluctuations thereof.
  • the wood blocks thus impregnated with a water-soluble polyalcohol (e.g. PEG), are stored for 1 to 3 days at a temperature of 50 - 80 o C for a sufficient penetration and diffusion of polyalcohol, whereafter the blocks are dried and, thus, the polyalcohol concentrates upon the removal of water.
  • the block surfaces are ground and the outlines are worked to precise measures.
  • the blocks are glued into blanks of board parquet, i.e. fitted between two body layers 4. Attachment to the body layer 4 of a parquet element can be effected by using a resin or wood adhesive 5 (e.g. a polyester resin or a polyvinyl acetate glue).
  • a resin or wood adhesive 5 e.g. a polyester resin or a polyvinyl acetate glue
  • the body 4 can preferably be made of plywood having a thickness of e.g. 9 mm.
  • the body 4 may also include one or a plurality of reinforced plastic layers.
  • the blank is sawn in two parts in the middle of wood blocks 1 and the resulting boards are provided with butments and the sawn surfaces are ground. Following the sawing and grinding, the vertical-grained surface layer 1 has a thickness of e.g. 3,0 - 3,5 mm.
  • filling resin or varnish which is allowed to impregnate inside wood grains and in interstices therebetween.
  • the impregnation of filling resin is accelerated basically the same way as described above in relation to the impregnation of PEG.
  • the boards are pre-heated and, upon cooling, they absorb the resin to a sufficient depth inside wood grains and in the interstices therebetween.
  • the employed filling resin or varnish is preferably some inexpensive polyester resin to maintain the parquet manufacturing costs reasonable despite the fact that, due to the porosity of the surface, the required amount of resin will be more than 100 g/m2, typically 100 - 300 g/m2, preferably 150 - 200 g/m2.
  • the filling resin or varnish impregnates locally to the depth of up to 0,5 mm and over most of the surface area to the depth of more than 0,2 mm.
  • the thickness of a filling resin or varnish layer 2 varies according to the porosity and absorbing capacity of wood but remains typically within the above range.
  • the process preferably involves the use of a UV-setting polyester resin but also a conventional extra heat activated (accelerated) curing reaction is possible.
  • the layer built by filling resin or varnish 2 improves substantially the wear resistance and hardness of vertical-grained wood.
  • the surface filling layer also provides an extra barrier against the penetration of moisture and at the same time braces the structure against the forces created by the remaining moisture-induced movements.
  • filling layer 2 By virtue of filling layer 2 the consumption of expensive parquet lacquers, such as UV-setting polyurethane lacquers, remains on the same level as or lower than in conventional board parquets, i.e. it is typically 20 - 50 g/m2. Thus, the amount of wood-impregnating filling resin or varnish is appr. 4 - 5 times that of a parquet lacquer.
  • the filling resin may also be one of the following alternatives: acrylic resin, epoxy resin, urea formaldehyde and phenolic resin. A clear, colourless polyester resin is preferable as it is capable of well bringing out the inherent hues and natural beauty of wood. If necessary, the filling resin can be admixed with whitening pigments, such as titanium white or resin-soluble colourants.
  • a method of the invention can also be used for manufacturing high-quality parquet from soft grades of wood. For example, tests have been made with alder to manufacture a vertical-grained wood parquet having about a double hardness and a multiple wear resistance compared with normal oakwood parquet. Also aspen can be used to manufacture a parquet competitive with current grades of parquet in terms of its wear resistance and hardness. The same applies also to the relatives of aspen, e.g. poplar. In fact, one discovery and advantage of the invention relates to the very use of soft grades of wood. Since the compression strength of soft grades of wood in the transverse direction of grains is low, also the cross-grain directed forces, which the grain structure is able to transmit, remain low and this is another reason why the contact-induced movements of parquet remain quite negligible.
  • An individual parquet element can be made relatively wide (e.g. 278 mm) whereby, when using wood blocks different from each other in terms of colour tones and sizes/shapes, it is possible to create an extensive selection of designs by varying their lay-down patterns.
  • This method can be applied for manufacturing a ready-made parquet or board parquet but it can also be applied as a genuine parquet, which is directly laid down on the floor and corresponds to a traditional block parquet with the blocks glued directly to the floor, ground and varnished with parquet lacquers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Finishing Walls (AREA)

Claims (11)

  1. Parkettstruktur, bei der die Richtung der Maserungen eines eine Parkett-Oberflächenschicht (1) bildenden Holzes im Verhältnis zur Ebene der Parkettoberfläche rechtwinklig oder in einem spitzen Winkel verläuft,
    dadurch gekennzeichnet,
    daß unterhalb der den eigentlichen Oberflächenlack bildenden Parkett-Firnisschichten (3) ein Füllharz oder Lack in das Innere und in die Zwischenräume von vertikalen Holzmaserungen einimpregniert ist und daß die Menge des Lackes bezogen auf die Menge des Parkettfirnisses ein Vielfaches, vorzugsweise ein 4 - 5 faches ist.
  2. Parkettstruktur nach Anspruch 1,
    dadurch gekennzeichnet,
    daß das oder der von dem Holz (1) absorbierbare Füllharz oder Lack bis zu einer Tiefe von 0,1 - 0,5 mm in das Holz einimpregniert ist und daß die Harz- oder Lackschicht (2) von der eigentlichen Firnisschicht (3) bedeckt ist.
  3. Parkettstruktur nach Anspruch 1 oder 2,
    dadurch gekennzeichnet,
    daß das Füllharz (2) aus einem UV-setzenden Polyester-Harz und der Parkettfirnis (3) aus einem UV-setzenden Urethan-Firnis besteht.
  4. Parkettstruktur nach einem oder mehreren der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß die Menge des Füllharzes oder Lackes (2) der 4 - 5 fachen Menge des Parkettfirnisses (3) entspricht und daß das Füllharz eines der folgenden Harze ist: Polyester-Harz, Acryl-Harz, Epoxyd-Harz, Ureaformaldehyd- und Phenol-Harz.
  5. Parkettstruktur nach einem oder mehreren der Ansprüche 1 bis 4,
    dadurch dekennzeichnet,
    daß das Füllharz mit weißen Pigmenten, wie zum Beispiel Titan-Weiß, oder mit harzlöslichen Farbstoffen vermischt ist.
  6. Parkettstruktur nach einem oder mehreren der Ansprüche 1 bis 5,
    dadurch gekennzeichnet,
    daß die Menge des Füllharzes oder Lackes 100 - 300 g/m² und die Menge des Parkettfirnisses (1) 20-50 g/m² beträgt.
  7. Parkettstruktur nach Anspruch 1 oder 2,
    dadurch gekennzeichnet,
    daß die die Oberflächenholzschicht (1) bildenden Holzblöcke mit einem wasserlöslichen Polyalkohol, wie zum Beispiel Polyethylen-Glycol, impregniert sind, das einiges Zellwandwasser des Holzes ersetzt.
  8. Verfahren zur Herstellung eines Parketts umfassend die folgenden Arbeitsgänge:
    - Belegung eines Parkettkörpers (4) mit einer Oberflächenschicht (1) aus Holz, die aus Holzblöcken hergestellt ist, wobei die Richtung der Holzmaserungen im Verhältnis zur Ebene der Parkettfläche rechtwinklig oder in einem spitzen Winkel verläuft,
    - Ausführung eines glatten Oberflächenschliffs und
    - Ausführung des Firnisanstrichs mit einem Parkettfirnis,
    dadurch gekennzeichnet,
    daß die Parkettoberfläche vor dem Firnisanstrich mit einem Füllharz oder Lack (2) beschichtet wird, das oder der ins Innere und in die Zwischenräume der vertikalen Holzmaserungen einimpregniert und daß die Menge des Harzes bezogen auf die Menge des Parkettfirnisses ein Vielfaches, vorzugsweise etwa ein 4 - 5 faches beträgt.
  9. Verfahren nach Anspruch 8,
    dadurch gekennzeichnet,
    daß vor der Auslegung der die Oberflächenholzschicht (1) auf dem Körper (4) bildenden Holzblöcke diese mit einem wasserlöslichen Polyalkohol, wie zum Beispiel Polyethylen-Glycol, impregniert werden, welches imstande ist, auf die Holzblöcke einzuwirken, um einiges darin enthaltenes Zellwandwasser zu ersetzen.
  10. Verfahren nach Anspruch 8 oder 9,
    dadurch gekennzeichnet,
    daß die Menge des in die Oberfläche eines bearbeiteten Holzparketts einimpregnierten Füllharzes oder Lackes mehr als 100 g/m² , vorzugsweise 150 - 200 g/m² beträgt und daß darauf ein Parkettfirnis in der Menge von 20 - 50 g/m² aufgebracht wird.
  11. Verfahren nach einem oder mehreren der Ansprüche 8 - 10,
    dadurch gekennzeichnet,
    daß der Füllharz oder Lack (2) während des Abkühlvorgangs von erhitztem Holz in eine Tiefe von 0,2 - 0,5 mm in das Innere des Holzes einimpregniert wird und daß nach dem Abbinden der Harz- oder Lackschicht (2) diese durch aufbringen einer eigentlichen Parkettlfirnisschicht (3), die aus Urethan-Firnis besteht, beschichtet wird.
EP92900967A 1990-12-05 1991-12-05 Parkettstruktur und verfahren zu ihrer herstellung Expired - Lifetime EP0560870B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI906013 1990-12-05
FI906013A FI93431C (fi) 1990-12-05 1990-12-05 Parkettirakenne ja menetelmä sen valmistamiseksi
PCT/FI1991/000374 WO1992010311A1 (en) 1990-12-05 1991-12-05 Parquet structure and method for its manufacturing

Publications (2)

Publication Number Publication Date
EP0560870A1 EP0560870A1 (de) 1993-09-22
EP0560870B1 true EP0560870B1 (de) 1996-03-20

Family

ID=8531532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92900967A Expired - Lifetime EP0560870B1 (de) 1990-12-05 1991-12-05 Parkettstruktur und verfahren zu ihrer herstellung

Country Status (6)

Country Link
EP (1) EP0560870B1 (de)
JP (1) JPH06506163A (de)
DE (1) DE69118202T2 (de)
FI (1) FI93431C (de)
RU (1) RU2069723C1 (de)
WO (1) WO1992010311A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2098304A2 (de) 2003-09-06 2009-09-09 Flooring Technologies Ltd. Verfahren zum Versiegeln einer Bauplatte
DE102008051805A1 (de) * 2008-10-17 2010-04-22 Thomas Riemer Verfahren zur Oberflächenveredelung von Holz, insbesondere Holzfußböden

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285069A (en) * 1993-12-21 1995-06-28 Chung Hsien Chiou Patterned floor tile
DE102006019817A1 (de) * 2005-05-02 2006-11-09 Basf Ag Verfahren zur Behandlung von Holzoberflächen
JP5704812B2 (ja) * 2009-12-28 2015-04-22 永大産業株式会社 木質系床材
EP2733279B1 (de) * 2012-11-20 2016-04-06 Rainer Böhme GmbH Sanierungselement für eine Trittstufe und Trittstufe
US10131119B2 (en) 2015-10-21 2018-11-20 Freres Lumber Co., Inc. Laminated wood product
US10464294B2 (en) 2015-10-21 2019-11-05 Freres Lumber Co., Inc. Wood panel assemblies and methods of production

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH440053A (de) * 1962-11-07 1967-07-15 Neodon Werk Helmut Sallinger Verfahren zum Versiegeln von Holzfussböden
NL6401969A (de) * 1963-02-28 1964-08-31
DE1621820B1 (de) * 1967-11-02 1972-03-09 Bergolin Lack Und Farbenfabrik Verfahren zum Grundieren von Holz
AU2331370A (en) * 1970-12-14 1972-06-15 Antal John Decorative hard surface timber floorcovering
DE3045077A1 (de) * 1980-11-29 1982-07-01 Lhc Loba-Holmenkol-Chemie Dr. Fischer Und Dr. Weinmann Kg, 7257 Ditzingen Verfahren zum versiegeln von parkettboeden und vorrichtung zur durchfuehrung des verfahrens
DE59104830D1 (de) * 1990-01-29 1995-04-13 Ciba Geigy Ag Holzschutzanstrich.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2098304A2 (de) 2003-09-06 2009-09-09 Flooring Technologies Ltd. Verfahren zum Versiegeln einer Bauplatte
DE10362218B4 (de) * 2003-09-06 2010-09-16 Kronotec Ag Verfahren zum Versiegeln einer Bauplatte
DE102008051805A1 (de) * 2008-10-17 2010-04-22 Thomas Riemer Verfahren zur Oberflächenveredelung von Holz, insbesondere Holzfußböden

Also Published As

Publication number Publication date
WO1992010311A1 (en) 1992-06-25
FI93431B (fi) 1994-12-30
JPH06506163A (ja) 1994-07-14
DE69118202D1 (de) 1996-04-25
DE69118202T2 (de) 1996-11-28
RU2069723C1 (ru) 1996-11-27
FI93431C (fi) 1995-04-10
FI906013A0 (fi) 1990-12-05
FI906013A (fi) 1992-06-06
EP0560870A1 (de) 1993-09-22

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