DK172239B1 - Process for quality improvement, such as improved preservation, of wood blanks by impregnating them - Google Patents

Process for quality improvement, such as improved preservation, of wood blanks by impregnating them Download PDF

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Publication number
DK172239B1
DK172239B1 DK084891A DK84891A DK172239B1 DK 172239 B1 DK172239 B1 DK 172239B1 DK 084891 A DK084891 A DK 084891A DK 84891 A DK84891 A DK 84891A DK 172239 B1 DK172239 B1 DK 172239B1
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DK
Denmark
Prior art keywords
wood
oil
linseed oil
bath
process according
Prior art date
Application number
DK084891A
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Danish (da)
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DK84891A (en
DK84891D0 (en
Inventor
Ulrich Schirnig
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Ulrich 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.)
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Publication date
Application filed by Ulrich Schirnig filed Critical Ulrich Schirnig
Priority to DK084891A priority Critical patent/DK172239B1/en
Publication of DK84891D0 publication Critical patent/DK84891D0/en
Priority to DE69201239T priority patent/DE69201239T2/en
Priority to AT92910440T priority patent/ATE117238T1/en
Priority to EP92910440A priority patent/EP0576608B1/en
Priority to AU17890/92A priority patent/AU1789092A/en
Priority to PCT/DK1992/000148 priority patent/WO1992019429A1/en
Publication of DK84891A publication Critical patent/DK84891A/en
Application granted granted Critical
Publication of DK172239B1 publication Critical patent/DK172239B1/en

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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

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  • 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)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Catching Or Destruction (AREA)

Abstract

A method of quality improvement of wooden articles, such as improved preservation of wood through impregnation thereof. The impregnation is carried out by immersing the wooden articles in a bath of hot linseed oil or similar vegetable oil heated to at least 110 DEG 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. The wooden articles are then taken out of the bath and the oil oozed in is made to cure and thereby to stiffen the wood. During the immersion of the wooden articles, the linseed oil bath has a temperature of up to 250 DEG C, preferably near 250 DEG C. An insecticide and/or fungicide has been added to the linseed oil. As a result, the finished wooden articles do not warp or display cracks or crevices and the wooden articles are resistant to insect or fungus attacks.

Description

DK 172239 B1 iDK 172239 B1 i

Opfindelsen angår en fremgangsmåde til kvalitetsforbedring, såsom forbedret konservering, af træemner ved imprægnering af disse, og hvor imprægneringen foretages ved, at træemnerne neddyppes i et bad af varm linolie eller lignende vegetabilsk 5 olie, opvarmet til i hvert fald 110°C, så at det i træet værende vand fordamper og diffunderer gennem træet og olien, samtidigt med at den varme olie trænger ind i træets porer og hulrum, hvorefter træemnerne tages op af badet, og den indsivede olie bringes til at hærdne og dermed afstive træet.The invention relates to a method of improving quality, such as improved preservation, of wood blanks by impregnating them, and wherein the blasting is done by immersing the blanks in a bath of hot linseed oil or similar vegetable oil, heated to at least 110 ° C, so that the water contained in the wood evaporates and diffuses through the wood and the oil, while the hot oil penetrates into the pores and voids of the wood, after which the woodpieces are taken out of the bath and the oiled oil is made to harden and thus stiffen the wood.

10 Fra beskrivelsen til fransk patent nr. 397.786 kendes en fremgangsmåde til tørring af træ og forbedring af træets kvalitet ved at dyppe dette i varm linolie eller lignende olier. Oliens temperatur skal være så høj, at vandet i træet fordamper, og træet bliver imprægneret med olien. Det angives, at tempera-15 turen almindeligvis er 100-110eC. Denne fremgangsmåde er ikke helt tilfredsstillende, fordi træemnerne ved denne forholdsvis lave imprægneringstemperatur har en tendens til at blive forvredet, i øvrigt ligesom ved tørring i varm luft.From the disclosure of French Patent No. 397,786, a method of drying wood and improving the quality of the wood is known by dipping it in hot linseed oil or similar oils. The temperature of the oil must be so high that the water in the wood evaporates and the wood is impregnated with the oil. It is stated that the temperature is generally 100-110 ° C. This method is not entirely satisfactory because the wood blanks tend to be distorted at this relatively low impregnation temperature, as in dry air.

Det er formålet med opfindelsen at anvise en fremgangsmåde af 20 den ovenfor nævnte art, som gør det muligt at gennemføre den ønskede imprægnering, uden at træemnerne forvrides eller kommer til at udvise sprækker eller revner, og som kan forhindre eller udslette et eventuelt insekt- eller svampeangreb på træet .SUMMARY OF THE INVENTION It is an object of the invention to provide a method of the kind mentioned above which allows the desired impregnation to be carried out without distorting the wood blanks or exhibiting cracks or cracks, and which may prevent or annihilate any insect or fungal attack on the tree.

25 Fremgangsmåden ifølge opfindelsen er ejendommelig ved, at linoliebadet under træemnernes neddypning har en temperatur på ca. 250°C, og at der til linolien er tilsat et insekticid og/eller fungicid. Derved opnås først og fremmest, at de færdige træemner ikke vil have slået sig eller udvise 30 sprækker eller revner, og desuden vil være resistente over for insekt- eller svampeangreb. Gennem indtrængningen af den meget varme linolie øges temperaturen i træet næsten chok-agtigt, så at dettes naturlige eller ude fra absorberede indhold af vand pludselig bringes op over kogepunktet og udsve- 2 DK 172239 B1 des. Vandet erstattet således af olien, der udfylder alle i træet forekommende naturlige eller unaturlige hulrum. Den indsivede olie vil efter en naturlig eller fremskyndet tørring afhærde og derigennem afstive/forbedre træet. Hertil kommer, 5 at de færdige træemner tåler maskinbearbejdning ved højere hastighed end hidtil kendt, idet imprægneringsolien vil have en betydelig smørevirkning. Fremdeles vil træemnernes overflade senere bedre kunne tåle bemaling. Endelig er fremgangsmåden mere miljøvenlig end visse kendte trykimprægneringer, hvor der 10 anvendes salte, der kan være giftige.The process according to the invention is characterized in that the linseed oil bath has a temperature of approx. 250 ° C and an insecticide and / or fungicide is added to the linseed oil. In this way, it is first and foremost achieved that the finished woodpieces will not have settled or exhibit 30 cracks or cracks, and in addition will be resistant to insect or fungal attack. Through the penetration of the very hot linseed oil, the temperature of the wood is increased almost shock-like, so that its natural or absorbed content of water is suddenly brought up above the boiling point and swelled. The water is thus replaced by the oil, which fills all natural or unnatural voids found in the tree. The sieved oil will, after a natural or accelerated drying, cure and thereby strengthen / improve the wood. In addition, the finished woodwork can withstand machine machining at a higher speed than previously known, since the impregnating oil will have a significant lubrication effect. Still, the surface of the woodpieces will later be able to withstand paint. Finally, the process is more environmentally friendly than certain known pressure impregnations, where salts that can be toxic are used.

En udformning af fremgangsmåden ifølge opfindelsen er ejendommelig ved, at der til den anvendte linolie er tilsat tørrelse (sikkativ), hvorved olien hurtigere end ellers vil hærdne.An embodiment of the process according to the invention is characterized in that drying (siccative) is added to the linseed oil, whereby the oil will cure faster than otherwise.

1515

En anden udformning af fremgangsmåden ifølge opfindelsen er ejendommelig ved, at der til den anvendte linolie er sat far-vepigmenter. Derved opnås, at de færdige træemner får et mere tiltalende udseende, idet farvepigmenterne især sætter sig på 20 træemnernes overflade. Indtrængningen er afhængig af træets art, dimension og oprindelige placering i træstammen.Another embodiment of the process according to the invention is characterized in that color pigments are added to the linseed oil used. This gives the finished woodpieces a more appealing appearance, with the color pigments in particular settling on the surface of the 20 woodpieces. The penetration depends on the nature, dimension and original location of the tree in the tree trunk.

Endnu en udformning af fremgangsmåden ifølge opfindelsen er ejendommelig ved, at de behandlede emner er af gammelt (t i d -25 ligere brugt) træ. Herved kan gammelt tilsyneladende udslidt træ finde anvendelse på ny, idet et behandlet træemne kan monteres på sit gamle monteringssted, f.eks. i forbindelse med en restaurering, idet træet får sin oprindelige, naturlige styrke tilbage, ja måske bliver stærkere end som så.Yet another embodiment of the method according to the invention is characterized in that the treated items are of old (t in d -25 or less used) wood. Hereby old seemingly worn wood can be re-used, since a treated woodpile can be mounted at its old mounting location, e.g. in connection with a restoration, in that the tree regains its original, natural strength, perhaps stronger than that.

3030

Ifølge opfindelsen kan neddypn i ngen foretages således, at indtrængningen af linolie i træemnet sker til ret ringe dybde, hvorved man kan fremstille træemner af ret forskellig kvalitet .According to the invention, immersion can be made in such a way that the penetration of linseed oil into the woodpile takes place to a fairly low depth, whereby woodpieces of quite different quality can be produced.

3535

Fremdeles kan ifølge opfindelsen træemnerne efter imprægneringen med linolien underkastes tørring (en hærdningsproces) i DK 172239 B1 3 varmekammer eller autoklave. Derved kan det enkelte traeemne få netop den styrke, som ønskes.Still, according to the invention, after the impregnation with the linseed oil, the wood blanks can be subjected to drying (a curing process) in DK 172239 B1 3 heating chamber or autoclave. In this way, the individual woodpile can have the exact strength desired.

Endelig kan ifølge opfindelsen de behandlede emner være af en let træsort eller træ af ringe naturlig styrke, hvorved opnås, 5 at billigt træ kan gøres mere anvendeligt til byggeformål og dermed mere værdifuldt.Finally, according to the invention, the treated items can be of a light wood or wood of low natural strength, thereby obtaining that cheap wood can be made more useful for construction purposes and thus more valuable.

Det bør tilføjes, at fremgangsmåden ifølge opfindelsen også er økologisk værdifuld, idet de anvendte midler kan nedbrydes og eventuelle reststoffer anvendes til andre formål, f.eks. ma~ 10 ling.It should be added that the process of the invention is also ecologically valuable in that the agents used can be degraded and any residual substances used for other purposes, e.g. ma ~ 10 ling.

Opfindelsen forklares nedenfor under henvisning til nogle udførelseseksempler.The invention is explained below with reference to some embodiments.

Eksempel 1Example 1

Et antal nye vinduesrammer (500 x 1000 mm) af fyrretræ, som 15 ønskedes forbedret med hensyn til trækvaliteten, blev befriet for glas og eventuelle beslag. Rammerne blev derefter ned-dyppet i et stort opvarmet kar indeholdende linoliefernis, dvs. ren linolie tilsat tørrelse (siccativ) samt et insekticid og fungicid. Linolien havde en temperatur på 250°C eller lidt 20 derunder. Rammerne holdtes neddyppede i 10-20 min. Derefter løftedes de op af badet og blev bragt til et tørrekammer, hvor lufttemperaturen var ca. 50°C, og der var et jævnt langsomt luftskifte. Den til linolien tilsatte tørrelse (siccativ) udgjordes af 0,07% bly, 0,003% mangan og 0,004% calcium. Som 25 insekticid og fungicid var tilsat følgende naftanater: 0,3% kobbernaftanat og 0,3% zinknaftanat. De færdige rammer udviste en markant forbedring af træets styrke, og samlingerne mellem de rammestykker, hvoraf den enkelte ramme var opbygget, viste sig at blive meget kompakte. Rammerne udviste ingen tendens 30 til kastning (vindskævhed) og var helt fri for svampesporer, idet de ikke kunne danne grobund herfor.A number of new window frames (500 x 1000 mm) of pine, which were desired to be improved in terms of wood quality, were freed from glass and any fittings. The frames were then dipped into a large heated vessel containing linseed oil varnish, ie. pure linseed oil with added drying (siccative) as well as an insecticide and fungicide. The linseed oil had a temperature of 250 ° C or slightly below. The frames were immersed for 10-20 min. Then they were lifted out of the bath and brought to a drying chamber where the air temperature was approx. 50 ° C and there was an even slow air change. The dryness (siccative) added to the linseed oil was 0.07% lead, 0.003% manganese and 0.004% calcium. The following naphthanates were added as insecticide and fungicide: 0.3% copper naphthanate and 0.3% zinc naphthanate. The finished frames showed a marked improvement in the strength of the wood, and the joints between the frame pieces from which each frame was constructed turned out to be very compact. The frames showed no tendency for throwing (bias) and were completely free of fungal spores as they could not form a breeding ground for this.

Claims (7)

1. Fremgangsmåde til kvalitetsforbedring, såsom forbedret konservering, af træemner ved imprægnering af disse, og hvor imprægneringen foretages ved, at træemnerne neddyppes i et bad af varm linolie eller lignende vegetabilsk olie, opvarmet til 15. hvert fald 110°C, så at det i træet værende vand fordamper og diffunderer gennem træet og olien, samtidigt med at den varme olie trænger ind i træets porer og hulrum, hvorefter træemnerne tages op af badet, og den indsivede olie bringes til at hærdne og dermed afstive træet, kendetegnet 20 ved, at linoliebadet under træemnernes neddypning har en temperatur på ca. 250°C, og at der til linolien er tilsat et insekticid og/eller fungicid.A method of improving quality, such as improved preservation, of woodpieces by impregnating them, and wherein the impregnation is done by immersing the woodpieces in a bath of warm linseed oil or similar vegetable oil, heated to at least 110 ° C. water in the wood evaporates and diffuses through the wood and the oil, at the same time as the hot oil penetrates into the pores and voids of the wood, after which the woodpieces are taken out of the bath, and the indented oil is made to harden and thus stiffen the wood, characterized by 20, that the linseed oil bath has a temperature of approx. 250 ° C and an insecticide and / or fungicide is added to the linseed oil. 2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at der til den anvendte linolie er sat tørrelse (sikkativ).Process according to claim 1, characterized in that drying (sicative) has been added to the linseed oil used. 3. Fremgangsmåde ifølge krav 1 eller 2, kendetegnet ved, at der til den anvendte linolie er sat farvepigmenter.Process according to claim 1 or 2, characterized in that color pigments are added to the linseed oil used. 4. Fremgangsmåde ifølge krav 1, 2 eller 3, kendetegnet ved, at de behandlede emner er af gammelt (brugt) træ. DK 172239 B1 5Method according to claim 1, 2 or 3, characterized in that the treated items are of old (used) wood. DK 172239 B1 5 5. Fremgangsmåde ifølge et eller flere af kravene 1-4, kendetegnet ved, at de behandlede emner er af en let træsort eller træ af ringe naturlig styrke.Process according to one or more of claims 1-4, characterized in that the treated items are of a light wood type or tree of low natural strength. 5 Tørringseffekten var minimal, især i emnernes kerne. Skulle man her have tilvejebragt en effektiv vandfortrængning, ville det kræve en lang opholdstid af emnerne i olien med risiko for, at disse ville forvrides eller kaster sig. Patentkrav 10 -------------------5 The drying effect was minimal, especially in the core of the blanks. Should an effective water displacement have been provided here, it would require a long residence time of the items in the oil with the risk that these would distort or collapse. Patent Claim 10 ------------------- 6. Fremgangsmåde ifølge et eller flere af kravene 1-5, 5 kendetegnet ved, at træemnerne efter imprægneringen med linolien underkastes tørring (en hærdningsproces) i varme-kammer eller autoklave.Process according to one or more of claims 1 to 5, characterized in that the wood blanks are subjected to drying (a curing process) in a heat chamber or autoclave after being impregnated with the linseed oil. 7. Fremgangsmåde ifølge et eller flere af kravene 1-6, kendetegnet ved, at neddypningen foretages således, 10 at indtrængning af linolie i træemnet sker til ret ringe dybde.Process according to one or more of claims 1 to 6, characterized in that the dipping is carried out such that penetration of linseed oil into the wood blank takes place at a fairly shallow depth.
DK084891A 1991-05-07 1991-05-07 Process for quality improvement, such as improved preservation, of wood blanks by impregnating them DK172239B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK084891A DK172239B1 (en) 1991-05-07 1991-05-07 Process for quality improvement, such as improved preservation, of wood blanks by impregnating them
DE69201239T DE69201239T2 (en) 1991-05-07 1992-05-07 METHOD FOR IMPROVING THE QUALITY OF WOODEN ITEMS, SUCH AS CONSERVATION OF THE WOOD BY IMPREGNATION.
AT92910440T ATE117238T1 (en) 1991-05-07 1992-05-07 METHOD FOR IMPROVING THE QUALITY OF WOODEN ITEMS SUCH AS PRESERVING THE WOOD THROUGH IMPREGNATION.
EP92910440A EP0576608B1 (en) 1991-05-07 1992-05-07 Method of quality improvement of wooden articles, such as improved preservation of the wood through impregnation thereof
AU17890/92A AU1789092A (en) 1991-05-07 1992-05-07 Method of quality improvement of wooden articles, such as improved preservation of the wood through impregnation thereof
PCT/DK1992/000148 WO1992019429A1 (en) 1991-05-07 1992-05-07 Method of quality improvement of wooden articles, such as improved preservation of the wood through impregnation thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK84891 1991-05-07
DK084891A DK172239B1 (en) 1991-05-07 1991-05-07 Process for quality improvement, such as improved preservation, of wood blanks by impregnating them

Publications (3)

Publication Number Publication Date
DK84891D0 DK84891D0 (en) 1991-05-07
DK84891A DK84891A (en) 1992-11-08
DK172239B1 true DK172239B1 (en) 1998-02-02

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Application Number Title Priority Date Filing Date
DK084891A DK172239B1 (en) 1991-05-07 1991-05-07 Process for quality improvement, such as improved preservation, of wood blanks by impregnating them

Country Status (6)

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EP (1) EP0576608B1 (en)
AT (1) ATE117238T1 (en)
AU (1) AU1789092A (en)
DE (1) DE69201239T2 (en)
DK (1) DK172239B1 (en)
WO (1) WO1992019429A1 (en)

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DK92243C (en) * 1957-07-20 1961-11-20 Herman Wang Apparatus for making bags provided with one or more closure strips.
CZ290292B6 (en) * 1992-09-15 2002-07-17 Ulrich Herbert Schirnig Method for cleansing woodwork
WO1996035560A1 (en) * 1995-05-08 1996-11-14 The University Of Melbourne Process of treating wood with preservative
DE19715664A1 (en) * 1997-04-16 1998-10-22 Butzbacher Weichenbau Gmbh Process for impregnating solids
DE19852827A1 (en) 1998-11-17 2000-05-18 Menz Martin Wood preservation process
SE516982C2 (en) * 1999-10-07 2002-04-02 Jaerlaasa Faergindustrier Ab Process for linseed oil impregnation of cellulose-based products
AUPR211400A0 (en) 2000-12-15 2001-01-25 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
KR101110669B1 (en) 2003-04-09 2012-02-17 오스모스 인코포레이티드 Micronized wood preservative formulations
CN1835830A (en) 2003-06-17 2006-09-20 法布罗技术有限公司 Particulate wood preservative and method for producing same
SE528250C2 (en) * 2004-02-27 2006-10-03 Calignum Technologies Ab A composition comprising an initiator and a method of treating wood with the composition
US20050252408A1 (en) 2004-05-17 2005-11-17 Richardson H W Particulate wood preservative and method for producing same
NZ554680A (en) 2004-10-14 2010-10-29 Osmose 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

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
FR397786A (en) * 1908-03-06 1909-05-17 Cyprien Gillet Aine Treatment process to dry and increase the qualities of wood
SE465760B (en) * 1985-05-28 1991-10-28 Kemira Kemwood Ab Procedure for impregnating and colouring wood with wood preservatives and pigments in one step
SE465790B (en) * 1990-03-05 1991-10-28 Electrolux Ab VARIABLE VEHICLE FOR SMALL HIGH-SPEED ENGINES

Also Published As

Publication number Publication date
WO1992019429A1 (en) 1992-11-12
AU1789092A (en) 1992-12-21
DK84891A (en) 1992-11-08
ATE117238T1 (en) 1995-02-15
EP0576608B1 (en) 1995-01-18
DK84891D0 (en) 1991-05-07
DE69201239D1 (en) 1995-03-02
EP0576608A1 (en) 1994-01-05
DE69201239T2 (en) 1995-05-18

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