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WO1992019429A1 - Procede destine a conferer une meilleure qualite a des articles en bois, telle qu'une meilleure preservation du bois, par l'intermediaire de son impregnation - Google Patents

Procede destine a conferer une meilleure qualite a des articles en bois, telle qu'une meilleure preservation du bois, par l'intermediaire de son impregnation Download PDF

Info

Publication number
WO1992019429A1
WO1992019429A1 PCT/DK1992/000148 DK9200148W WO9219429A1 WO 1992019429 A1 WO1992019429 A1 WO 1992019429A1 DK 9200148 W DK9200148 W DK 9200148W WO 9219429 A1 WO9219429 A1 WO 9219429A1
Authority
WO
WIPO (PCT)
Prior art keywords
wood
oil
bath
wooden articles
linseed oil
Prior art date
Application number
PCT/DK1992/000148
Other languages
English (en)
Inventor
Ulrich Herbert Schirnig
Original Assignee
Ulrich Herbert Schirnig
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 Ulrich Herbert Schirnig filed Critical Ulrich Herbert Schirnig
Priority to DE69201239T priority Critical patent/DE69201239T2/de
Priority to EP92910440A priority patent/EP0576608B1/fr
Publication of WO1992019429A1 publication Critical patent/WO1992019429A1/fr

Links

Classifications

    • 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
    • B27K3/34—Organic impregnating agents
    • B27K3/44—Tar; Mineral oil
    • B27K3/48—Mineral oil
    • 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
    • B27K3/0278—Processes; Apparatus involving an additional treatment during or after impregnation
    • B27K3/0285—Processes; Apparatus involving an additional treatment during or after impregnation for improving the penetration of the impregnating fluid
    • 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
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C

Definitions

  • the invention relates to a method of quality improvement of wooden articles such as improved preservation of wood through impregnation thereof, and where the impregnation is carried out by the wooden articles being immersed in a bath of hot linseed oil or similar vegetable oil, heated to at least 110°C, whereby the water present in the wood evaporates and diffuses through the wood and the oil while the hot oil simultaneously penetrates into the pores and cavities of the wood, whereupon the wooden articles are taken out of the bath and the oil oozed in is made to cure and thereby to stiffen the wood.
  • French patent No. 397,789 disloses a method for drying wood and improving the quality of the wood by immersing said wood into hot linseed oil or similar oils.
  • the temperature of the oil must be sufficiently high for the water in the wood to evaporate and the wood to be impregnated with the oil. It is stated that the temperature is conventionally 100—110°C. This method is not quite satisfactory because the wooden articles tend to be distorted at this relatively low impregnation temperature, as is also the case when drying in hot air.
  • the method according to the invention is characterised in that during the immersion of the wooden articles, the linseed oil bath has a temperature of up to 250°C, prefer- ably near 250°C, and that an insecticide and/or fungicide has been added to the linseed oil.
  • the linseed oil bath has a temperature of up to 250°C, prefer- ably near 250°C, and that an insecticide and/or fungicide has been added to the linseed oil.
  • the treated wooden articles stand mechanical treatment at higher rates of speed than so far known, as the impregnation oil has a considerable lubricating effect. Furthermore, the surface of the wooden articles better stand painting at a later time. Finally, the method is environmentally more acceptable than the known pressure impregnation where salts are used which may be toxinous .
  • An embodiment of the method according to the invention is characterised in that a drier (siccative) is added to the linseed oil used thereby accelerating the curing of the oil.
  • a second embodiment of the invention according to the invention is characterised in that colour pigments have been added to the linseed oil used. As a result, the finished wooden articles get a more attractive appearance, as the colour pigments particularly settle on the surface of the wooden articles . The penetration depends on the type of wood, dimension and original place in the stem.
  • a further embodiment of the method according to the invention is characterised in that the treated articles are of old (previsously used) wood. As a result, old apparently worn out wood may find new use, for instance in connection with a restoration, as the wood gets back its old strength, indeed may get stonger than it naturally was .
  • the immersion may be carried out for a relatively short period whereby the penetration of the linseed oil in the wooden material takes place to a rather slight depth. Thereby wooden articles of a rather different quality may be obtained.
  • the wooden articles may be subjected to a controlled drying (curing process) in heat chamber or autoclave after the impregnation with the hot linseed oil. It is thereby further ensured that the end product is not crooked.
  • the linseed bath may have a temperature of 145-250°C, preferably 175-245°C, during the immersion of the wooden articles, which has been found particularly advantageous .
  • the linseed bath may have a temperature of 210-240 ⁇ C, preferably 225-235 ⁇ C during the immersion of the wooden articles, which is also very advantageous .
  • the wooden articles may be kept immersed for at least 10 minutes, preferably 15-45 minutes, whereby a suitable oozing in of oil is obtained.
  • the present method is environmentally acceptable because the substances used are degradable and possible residues may be used for other purposes, for instance paint.
  • the invention is described in greater details below with reference to the Examples.
  • a number of new window frames (500 by 1000 mm) made of pinewood, which were desired to be improved as regards the wood quality were freed of glass and possible hardware.
  • the frames were then immersed into a large heated vessel containing linseed oil varnish, i.e. pure linseed oil with drier (siccative) added and an insecticide and fungicide.
  • the linseed oil had a temperature of 250 ⁇ C or slightly below.
  • the frames were kept immersed for 10—20 minutes. They were then taken out of the bath and brought to a drying chamber where the air temperature was about 50°C and the air change was uniformly slow.
  • the drier (sic— cative) added to the linseed oil comprised 0.07% lead , 0.003% manganese and 0.004% calcium.
  • the finished frames displayed a marked improvement of the strength of the wood and the joints between the frame sections of which the individual frame is constructed, proved to be very compact.
  • the frames displayed no tendency to warp (crookedness) and were entirely without fungus spores. Furthermore, the frames did not provide intimate soil to the fungus spores.
  • a number of wooden articles of pinewood were formed to have dimensions almost corresponding to the dimentions of the worked end products.
  • the degree of humidity of the starting articles was around 20%.
  • the articles were immersed in a bath of 150°C hot linseed oil and were kept under the surface of the oil for 45 minutes. At the end of this period only signs of the oil sizzling around the articles were seen. The water evaporation had ceased before then.
  • the invention may be varied in many ways without thereby deviating from the scope of its idea.
  • the time spent by the articles in the linseed bath may thus be extended to several hours. Possibly, the drying time may be extended to more days .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Catching Or Destruction (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

Procédé destiné à conférer une meilleure qualité à des articles en bois, telle qu'une meilleure préservation du bois grâce à son imprégnation. On effectue le procédé d'imprégnation en immergeant les articles dans un bain d'huile de lin chaude ou d'une huile végétale analogue chauffée jusqu'à température d'au moins 110 °C, de sorte que l'eau présente dans le bois s'évapore et se diffuse à travers le bois et l'huile, alors que l'huile chauffée pénètre simultanément dans les pores et les cavités du bois. Les articles en bois sont ensuite retirés du bain et l'huile qui s'y est infiltrée est amenée à durcir afin de renforcer le bois. Au cours de l'immersion des articles en bois, le bain d'huile de lin chaude atteint une température de préférence proche de 250 °C. Un insecticide et/ou fongicide a été ajouté à l'huile de lin. En conséquence, les articles finis ne se tordent pas et ne présentent pas de fissures ou de crevasses, et les articles sont résistants aux insectes ou aux champignons.
PCT/DK1992/000148 1991-05-07 1992-05-07 Procede destine a conferer une meilleure qualite a des articles en bois, telle qu'une meilleure preservation du bois, par l'intermediaire de son impregnation WO1992019429A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69201239T DE69201239T2 (de) 1991-05-07 1992-05-07 Verfahren zur qualitätsverbesserung von holzartikeln wie etwa konservierung des holzes durch imprägnierung.
EP92910440A EP0576608B1 (fr) 1991-05-07 1992-05-07 Procede destine a conferer une meilleure qualite a des articles en bois, telle qu'une meilleure preservation du bois, par l'intermediaire de son impregnation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK084891A DK172239B1 (da) 1991-05-07 1991-05-07 Fremgangsmåde til kvalitetsforbedring, såsom forbedret konservering, af træemner ved imprægnering af disse
DK0848/91 1991-05-07

Publications (1)

Publication Number Publication Date
WO1992019429A1 true WO1992019429A1 (fr) 1992-11-12

Family

ID=8098232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1992/000148 WO1992019429A1 (fr) 1991-05-07 1992-05-07 Procede destine a conferer une meilleure qualite a des articles en bois, telle qu'une meilleure preservation du bois, par l'intermediaire de son impregnation

Country Status (6)

Country Link
EP (1) EP0576608B1 (fr)
AT (1) ATE117238T1 (fr)
AU (1) AU1789092A (fr)
DE (1) DE69201239T2 (fr)
DK (1) DK172239B1 (fr)
WO (1) WO1992019429A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994006638A1 (fr) * 1992-09-15 1994-03-31 Ulrich Herbert Schirnig Procede de nettoyage du bois
WO1996035560A1 (fr) * 1995-05-08 1996-11-14 The University Of Melbourne Procede de traitement du bois avec des conservateurs
WO1998046403A1 (fr) * 1997-04-16 1998-10-22 Bwg Butzbacher Weichenbau Gesellschaft Mbh & Co. Kg Agent d'impregnation et procede d'impregnation de solides
EP1002630A1 (fr) * 1998-11-17 2000-05-24 Menz, Martin Procédé de traitement de bois
WO2001024982A1 (fr) * 1999-10-07 2001-04-12 Järlåsa Färgindustrier AB Procede d'impregnation
WO2002047876A1 (fr) * 2000-12-15 2002-06-20 Koppers-Hickson Timber Protection Pty Limited Materiau et procede de traitement pour bois debite
US6686056B2 (en) 2001-12-04 2004-02-03 Chemical Specialties, Inc. Reactive oil/copper preservative systems for wood products
EP1568745A1 (fr) * 2004-02-27 2005-08-31 Calignum Technologies AB Composition comportant un initiateur et une méthode de traiter le bois avec la composition
WO2008083462A1 (fr) * 2007-01-03 2008-07-17 Universite Du Quebec En Abitibi-Temiscamingue (Uqat) Procédé et dispositif de traitement thermique pour produit en bois, et produit en bois
US8871277B2 (en) 2003-06-17 2014-10-28 Osmose, Inc. Particulate wood preservative and method for producing the same
US9079328B2 (en) 2003-04-09 2015-07-14 Koppers Performance Chemicals Inc. Micronized wood preservative formulations
US9314030B2 (en) 2004-05-17 2016-04-19 Koppers Performance Chemicals Inc. Particulate wood preservative and method for producing same
US9775350B2 (en) 2004-10-14 2017-10-03 Koppers Performance Chemicals Inc. Micronized wood preservative formulations in organic carriers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK92243C (da) * 1957-07-20 1961-11-20 Herman Wang Apparat til fremstilling af poser, som er forsynet med en eller flere lukkestrimler.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR397786A (fr) * 1908-03-06 1909-05-17 Cyprien Gillet Aine Procédé de traitement pour sécher et augmenter les qualités du bois
SE465790B (sv) * 1990-03-05 1991-10-28 Electrolux Ab Variabel vaexel foer smaa hoegvarviga motorer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465760B (sv) * 1985-05-28 1991-10-28 Kemira Kemwood Ab Saett att impregnera och infaerga trae med traekonserveringsmedel och pigment i ett steg

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR397786A (fr) * 1908-03-06 1909-05-17 Cyprien Gillet Aine Procédé de traitement pour sécher et augmenter les qualités du bois
SE465790B (sv) * 1990-03-05 1991-10-28 Electrolux Ab Variabel vaexel foer smaa hoegvarviga motorer

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994006638A1 (fr) * 1992-09-15 1994-03-31 Ulrich Herbert Schirnig Procede de nettoyage du bois
US6235403B1 (en) 1995-05-08 2001-05-22 The University Of Melbourne Process of treating wood with preservative
WO1996035560A1 (fr) * 1995-05-08 1996-11-14 The University Of Melbourne Procede de traitement du bois avec des conservateurs
WO1998046403A1 (fr) * 1997-04-16 1998-10-22 Bwg Butzbacher Weichenbau Gesellschaft Mbh & Co. Kg Agent d'impregnation et procede d'impregnation de solides
AT408084B (de) * 1997-04-16 2001-08-27 Butzbacher Weichenbau Gmbh Verfahren zum inprägnieren von aus holz bestehenden oder holz aufweisenden gleisträgern
EP1002630A1 (fr) * 1998-11-17 2000-05-24 Menz, Martin Procédé de traitement de bois
US6217939B1 (en) 1998-11-17 2001-04-17 Martin Menz Wood treatment process
WO2001024982A1 (fr) * 1999-10-07 2001-04-12 Järlåsa Färgindustrier AB Procede d'impregnation
WO2002047876A1 (fr) * 2000-12-15 2002-06-20 Koppers-Hickson Timber Protection Pty Limited Materiau et procede de traitement pour bois debite
US7361215B2 (en) 2000-12-15 2008-04-22 Koppers Arch Wood Protection (Aust) Pty Limited Material and method for treatment of timber
US7625577B2 (en) 2000-12-15 2009-12-01 Koppers-Hickson Timber Protection Pty Limited Material and method for treatment of timber
US6686056B2 (en) 2001-12-04 2004-02-03 Chemical Specialties, Inc. Reactive oil/copper preservative systems for wood products
US9079328B2 (en) 2003-04-09 2015-07-14 Koppers Performance Chemicals Inc. Micronized wood preservative formulations
US8871277B2 (en) 2003-06-17 2014-10-28 Osmose, Inc. Particulate wood preservative and method for producing the same
EP1568745A1 (fr) * 2004-02-27 2005-08-31 Calignum Technologies AB Composition comportant un initiateur et une méthode de traiter le bois avec la composition
US9314030B2 (en) 2004-05-17 2016-04-19 Koppers Performance Chemicals Inc. Particulate wood preservative and method for producing same
US9775350B2 (en) 2004-10-14 2017-10-03 Koppers Performance Chemicals Inc. Micronized wood preservative formulations in organic carriers
US8475880B2 (en) 2007-01-03 2013-07-02 Serex Process and apparatus for the heat treatment of a wood product and treated wood product
US20100143737A1 (en) * 2007-01-03 2010-06-10 Abdelkader Chaala Process and apparatus for the heat treatment of a wood product and treated wood product
WO2008083462A1 (fr) * 2007-01-03 2008-07-17 Universite Du Quebec En Abitibi-Temiscamingue (Uqat) Procédé et dispositif de traitement thermique pour produit en bois, et produit en bois

Also Published As

Publication number Publication date
AU1789092A (en) 1992-12-21
DK172239B1 (da) 1998-02-02
DE69201239D1 (de) 1995-03-02
DK84891A (da) 1992-11-08
DK84891D0 (da) 1991-05-07
DE69201239T2 (de) 1995-05-18
ATE117238T1 (de) 1995-02-15
EP0576608B1 (fr) 1995-01-18
EP0576608A1 (fr) 1994-01-05

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