EP0560870B1 - Structure de parquet et procede de sa fabrication - Google Patents

Structure de parquet et procede de sa fabrication 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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German (de)
English (en)
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EP0560870A1 (fr
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/fr
Application granted granted Critical
Publication of EP0560870B1 publication Critical patent/EP0560870B1/fr
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.

Abstract

L'invention se rapporte à une structure de parquet et à son procédé de fabrication. On constitue une couche de surface de parquet (1) avec des blocs de bois, dans laquelle le sens des veines du bois est perpendiculaire ou à angle aigu par rapport au niveau de la surface du parquet. Avant d'effectuer la finition à la laque, on revêt la surface du parquet en bois terminé, d'une application de résine ou de vernis d'apprêt (2), imprégnant les interstices et les veines du bois verticales, jusqu'à une profondeur située entre 0,2 et 0,5 mm environ. On utilise la résine ou le vernis d'apprêt selon une quantité de 100-300 g/m2. Après durcissement, on passe plusieurs couches de laque de parquet selon une quantité totale de 20-50 g/m2. La résine d'apprêt utilisée peut être une résine polyester économique et la laque de finition, une laque uréthane traditionnelle.

Claims (11)

  1. Structure de parquet, dans laquelle la direction des grains du bois constituant une couche de surface de parquet (1) est perpendiculaire au niveau d'une surface du parquet ou forme un angle aigu par rapport à celui-ci, caractérisée en ce qu'en dessous de couches de laque de parquet (3) constituant le vernis de surface proprement dit se trouve une résine ou un vernis de remplissage (2) imprégnant l'intérieur de grains verticaux du bois et les interstices entre ceux-ci, la quantité dudit vernis étant un multiple, de préférence 4-5 fois par rapport à la quantité de ladite laque de parquet.
  2. Structure de parquet selon la revendication 1, caractérisée en ce que ladite résine ou ledit vernis de remplissage que le bois (1) peut absorber imprègne l'intérieur du bois à une profondeur de 0,1-0,5 mm, et cette couche de résine ou de vernis (2) est recouverte d'une couche de laque de parquet (3) proprement dite.
  3. Structure de parquet selon la revendication 1 ou 2, caractérisée en ce que ladite résine de remplissage (2) est constituée d'une résine polyester durcissant aux UV, et ladite laque de parquet (3) est constituée d'une laque d'uréthane durcissant aux UV.
  4. Structure de parquet selon l'une quelconque des revendications 1-3, caractérisée en ce que la quantité de résine ou de vernis de remplissage (2) vaut 4-5 fois celle de la laque de parquet (3), et la résine de remplissage est une des résines suivantes: résine de polyester, résine acrylique, résine époxy, résine d'uréeformaldéhyde et phénolique.
  5. Structure de parquet selon l'une quelconque des revendications 1-4, caractérisée en ce qu'à la résine de remplissage sont mélangés des pigments de blanchissement tels que du blanc de titane ou des colorants solubles dans la résine.
  6. Structure de parquet selon l'une quelconque des revendications 1-5, caractérisée en ce que la quantité de résine ou de vernis de remplissage est de 100-300 g/m², et la quantité de laque de parquet (1) est de 20-50 g/m².
  7. Structure de parquet selon la revendication 1 ou 2, caractérisée en ce que les blocs de bois formant ladite couche de bois de surface (1) sont imprégnés d'un polyalcool soluble dans l'eau, par exemple de polyéthylèneglycol, qui remplace une partie de l'eau des parois cellulaires du bois.
  8. Procédé de fabrication d'un parquet, ledit procédé comportant les opérations ci-dessous:
    - pose d'un corps de parquet (4) présentant une couche de surface en bois (1) constituée de blocs de bois, dans laquelle la direction des grains du bois est perpendiculaire au niveau d'une surface de parquet ou forme un angle aigu par rapport à celui-ci;
    - exécution d'un ponçage d'une surface, et
    - finition à la laque avec une laque de parquet,
    caractérisé en ce qu'avant la finition à la laque, la surface de parquet est revêtue d'une résine ou d'un vernis de remplissage (2) imprégnant l'intérieur des grains verticaux du bois et les interstices entre ceux-ci, la quantité de ladite résine constituant un multiple, de préférence environ 4-5 fois comparée à la quantité de la laque de parquet.
  9. Procédé selon la revendication 8, caractérisé en ce qu'avant de poser la couche de bois de surface (1) formée de blocs de bois sur ledit corps (4), les blocs de bois sont imprégnés d'un polyalcool soluble dans l'eau, par exemple de polyéthylèneglycol, que l'on laisse agir sur les blocs de bois pour y remplacer une partie de l'eau des parois cellulaires.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce que la quantité de résine ou de vernis de remplissage imprégnant la surface d'un parquet de bois fini est supérieure à 100 g/m², de préférence de 150-200 g/m², et que par dessus celle-ci est appliquée une laque de parquet en quantité de 20-50 g/m².
  11. Procédé selon l'une quelconque des revendications 8-10, caractérisé en ce qu'au cours de l'étape de refroidissement du bois chauffé, ladite résine ou ledit vernis de remplissage (2) imprègne l'intérieur du bois jusqu'à une profondeur de 0,2-0,5 mm, et lorsque cette couche de résine ou de vernis (2) a durci, elle est revêtue par application d'une couche de laque de parquet (3) proprement dite, qui est constituée de laque d'uréthane.
EP92900967A 1990-12-05 1991-12-05 Structure de parquet et procede de sa fabrication Expired - Lifetime EP0560870B1 (fr)

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 (fr) 1990-12-05 1991-12-05 Structure de parquet et procede de fabrication

Publications (2)

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

Family

ID=8531532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92900967A Expired - Lifetime EP0560870B1 (fr) 1990-12-05 1991-12-05 Structure de parquet et procede de sa fabrication

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2098304A2 (fr) 2003-09-06 2009-09-09 Flooring Technologies Ltd. Procédé de scellement d'une plaque de construction
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 (fr) * 2012-11-20 2016-04-06 Rainer Böhme GmbH Élément d'assainissement pour une marche et marche
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 (fr) * 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 (fr) 2003-09-06 2009-09-09 Flooring Technologies Ltd. Procédé de scellement d'une plaque de construction
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 (fr) 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 (fr) 1993-09-22

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