ES470276A1 - Wood preservation - Google Patents

Wood preservation

Info

Publication number
ES470276A1
ES470276A1 ES470276A ES470276A ES470276A1 ES 470276 A1 ES470276 A1 ES 470276A1 ES 470276 A ES470276 A ES 470276A ES 470276 A ES470276 A ES 470276A ES 470276 A1 ES470276 A1 ES 470276A1
Authority
ES
Spain
Prior art keywords
wood
treating
treating liquid
substances
container
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
Application number
ES470276A
Other languages
Spanish (es)
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.)
Forest Prod Util Lab
Original Assignee
Forest Prod Util Lab
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
Priority claimed from US05/836,986 external-priority patent/US4303705A/en
Application filed by Forest Prod Util Lab filed Critical Forest Prod Util Lab
Publication of ES470276A1 publication Critical patent/ES470276A1/en
Expired legal-status Critical Current

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
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • 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
    • B27K1/00—Damping wood
    • 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
    • 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
    • B27K3/0292—Processes; Apparatus involving an additional treatment during or after impregnation for improving fixation
    • 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
    • B27K3/16—Inorganic impregnating agents
    • B27K3/32—Mixtures of different inorganic impregnating agents
    • 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
    • B27K3/38—Aromatic compounds
    • B27K3/40—Aromatic compounds halogenated
    • 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
    • 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
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
    • 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
    • B27K5/001—Heating

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

In this method, treating substances are conveyed in water, for example CCA salts or a sodium chlorophenate, and are forcibly introduced into the wood by pressurised impregnation methods. The treating solution is kept inside the wood until the treating substances have been fixed in the wood by precipitation or chemical deposit. A significant rejection of worn-out treating liquid is obtained at the end of the method by reducing the pressure inside the pressurised treatment container to a value equal to, and preferably less than the pressure which prevailed in the wood immediately before impregnation. The speed and efficiency of the method are materially increased at a high temperature and it is often advantageous to heat the wood, for example by heating the treating liquid or else by evacuating the treating liquid from the container and by using steam or a second treating liquid for heating the wood. In any case, care must be taken to maintain sufficient pressure inside the treating container to prevent a premature rejection of the treating liquid before the substances have been deposited in the wood.
ES470276A 1977-05-31 1978-05-29 Wood preservation Expired ES470276A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US80195377A 1977-05-31 1977-05-31
US83698577A 1977-09-27 1977-09-27
US83694377A 1977-09-27 1977-09-27
US05/836,986 US4303705A (en) 1977-09-27 1977-09-27 Treatment of wood with water-borne preservatives

Publications (1)

Publication Number Publication Date
ES470276A1 true ES470276A1 (en) 1979-09-16

Family

ID=27505816

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470276A Expired ES470276A1 (en) 1977-05-31 1978-05-29 Wood preservation

Country Status (15)

Country Link
JP (1) JPS5495703A (en)
AU (1) AU3657478A (en)
BR (1) BR7803404A (en)
CA (1) CA1122484A (en)
CH (1) CH624339A5 (en)
DE (1) DE2823574A1 (en)
DK (1) DK236578A (en)
ES (1) ES470276A1 (en)
FI (1) FI781712A (en)
FR (1) FR2392786A1 (en)
GB (1) GB1604803A (en)
IT (1) IT1095177B (en)
MX (1) MX148557A (en)
NO (1) NO781826L (en)
SE (1) SE7806283L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239382A (en) * 1960-09-27 1966-03-08 Exxon Research Engineering Co Fuel cell catalysts
US4649065A (en) * 1985-07-08 1987-03-10 Mooney Chemicals, Inc. Process for preserving wood
EP0280690A4 (en) * 1986-07-01 1989-03-09 Aaltje Elisabeth Maude Impregnation process and apparatus with a vacuum pump valve control system.
IT1265799B1 (en) * 1992-03-05 1996-12-11 Margaritelli Spa DOUBLE IMPREGNATION PROCEDURE OF THE WOOD TO ALLOW ITS OPTIMAL PRESERVATION, CARRIED OUT WITH MINERAL SALTS AND CASTING OIL
NZ306373A (en) * 1995-05-08 2000-02-28 Univ Melbourne Process of treating wood with a waterborne preservative such as CCA at an elevated temperature and pressure
WO1997034746A1 (en) * 1996-03-21 1997-09-25 Centillion Chemicals Limited Fixation process
JPH09277209A (en) * 1996-04-19 1997-10-28 Sanko Kogyo Kk Antiseptically and flame-resistingly treated wood and manufacture thereof
PT102376A (en) * 1999-11-16 2001-05-31 Amorim & Irmaos S A SOLID-LIQUID EXTRACTION PROCESS APPLIED TO CORTICAL PRODUCTS
WO2005061221A1 (en) * 2003-12-22 2005-07-07 Fischer Advanced Composite Components Ag Method for producing a fire-retardant veneer, and corresponding fire-retardant veneer
DE102008040903A1 (en) * 2008-07-31 2010-02-04 Fränkische Holzveredelungs-GmbH Wood pieces i.e. parquet tiles, coloring method for parquet floor, involves applying and maintaining high pressure in color fluid and wood pieces, and pumping color fluid and applying and maintaining low pressure over time period
DE102010001424A1 (en) * 2010-02-01 2011-08-04 Fränkische Holzveredelungs-GmbH, 97353 Method for dyeing of wooden pieces, involves introducing wooden pieces into printing or coloring chamber, and applying and maintaining low pressure over certain period

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080212A (en) * 1961-12-12 1963-03-05 Koppers Co Inc Treatment of wood with hot chromated copper arsenate solutions
FR1342157A (en) * 1962-07-26 1963-11-08 Koppers Co Inc Improvements to processes for preserving wood, and to wood thus treated
US3560251A (en) * 1965-07-19 1971-02-02 Hager Ab Wood treatment method
US3900615A (en) * 1972-10-13 1975-08-19 Dow Chemical Co Process for treating wood

Also Published As

Publication number Publication date
BR7803404A (en) 1979-02-06
DK236578A (en) 1978-12-01
SE7806283L (en) 1978-12-01
CA1122484A (en) 1982-04-27
FI781712A (en) 1978-12-01
DE2823574A1 (en) 1978-12-21
AU3657478A (en) 1979-12-06
FR2392786A1 (en) 1978-12-29
JPS5495703A (en) 1979-07-28
MX148557A (en) 1983-05-06
CH624339A5 (en) 1981-07-31
IT7824030A0 (en) 1978-05-31
GB1604803A (en) 1981-12-16
NO781826L (en) 1978-12-01
IT1095177B (en) 1985-08-10

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