EP0065941A2 - Procédé de préparation de panneaux de particules - Google Patents
Procédé de préparation de panneaux de particules Download PDFInfo
- Publication number
- EP0065941A2 EP0065941A2 EP82850116A EP82850116A EP0065941A2 EP 0065941 A2 EP0065941 A2 EP 0065941A2 EP 82850116 A EP82850116 A EP 82850116A EP 82850116 A EP82850116 A EP 82850116A EP 0065941 A2 EP0065941 A2 EP 0065941A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- board
- surface layer
- layer
- fractionated
- layers
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
Definitions
- the present invention relates to a method for the preparation of a particle board by building up the board in layers with a middle layer of coarse material, a surface layer of fine material on each side of the board and, optionally, one or more intermediate layers between the middle layer and each surface layer.
- An object of the present invention is to provide a method of the above mentioned type, by means of which method a surface of throughout fine material can be obtained.
- Another object of the invention is to provide a method of the above mentioned type, by means of which method the consumption of binder for the surface layer can be cut down and the loss of binder by material ground away can be reduced.
- the method according to the invention provides a board with considerably higher volumetric weight and bending strength at the same percentage addition of binder and a considerably lower percentage addition of binder can be used for the attainment of the same bending strength.
- the fractionation of the material for the surface layer in the method according to the invention is preferably carried out by methods known per se in connection with the stepless fractionation of particle material but the application of the fractionated material is carried out in reverse order in comparison with the conventional methods for the application of fractionated material, i.e. according to the invention the direction of the blowing in wind sifters is changed to be the reversed respectively the direction of rotation is changed in case of throwing rolls to be the reversed in comparison with the conventional methods.
- a fractionation step-by-step of the material for the surface layer into two or more fractions can be used, if desired.
- Glue-coated particles for the middle and surface layers of a three-layer board were taken from the production in the factory and were pressed to boards having a thickness of 15mm in a laboratory press at 200 0 C with a pressing time of 7 seconds/mm.
- the material of the surface layer amounted to about 35 % by weight calculated on the weight of the total particle material.
- the material for the surface layer was fractionated according to the invention into 2 fractions, one being in the range of 0 - 5 mm and the other above 5 mm.
- the two fractions were strewed with the finer fraction next to the material of the middle layer and on both sides thereof and with the coarser fraction farthest.out on the two-sides of the boards.
- Two different percentages of glue (11.5 and 7.8 % by weight calculated on the weight of the surface layer) were used, three boards being pressed at each percentage of glue.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8103255 | 1981-05-22 | ||
SE8103255A SE426371C (sv) | 1981-05-22 | 1981-05-22 | Sett vid framstellning av en spanskiva |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0065941A2 true EP0065941A2 (fr) | 1982-12-01 |
EP0065941A3 EP0065941A3 (fr) | 1984-08-15 |
Family
ID=20343911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82850116A Withdrawn EP0065941A3 (fr) | 1981-05-22 | 1982-05-19 | Procédé de préparation de panneaux de particules |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0065941A3 (fr) |
SE (1) | SE426371C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU580720B2 (en) * | 1986-08-30 | 1989-01-27 | Hornitex Werke Gebr.Kunnemeyer G.M.B.H. & Co. Kg | Method of preparing wood-fibre boards |
US6284794B1 (en) | 1996-11-05 | 2001-09-04 | Head Explorer Aps | Method for treating tension-type headache with inhibitors of nitric oxide and nitric oxide synthase |
WO2005046950A1 (fr) * | 2003-11-13 | 2005-05-26 | Swedwood International Ab | Panneau de particules |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR926024A (fr) * | 1946-04-25 | 1947-09-19 | Procédé pour la fabrication de plaques pressées formées de plusieurs couches de particules de bois et de liant et plaque pressée obtenue au moyen de ce procédé | |
FR1318585A (fr) * | 1962-03-30 | 1963-02-15 | August Moralt | éléments de forme à base de poudre de bois |
FR1486810A (fr) * | 1966-07-15 | 1967-06-30 | Schenck Gmbh Carl | Procédé et installation pour la fabrication d'agglomérés, notamment de panneaux ou de plaques, à partir d'une nappe de matière dispersable formée de plusieurs chouches |
DE1528232A1 (de) * | 1965-10-01 | 1970-07-02 | Aicher Geb | Spanplatte und Verfahren zu ihrer Herstellung |
DE1806210A1 (de) * | 1968-10-31 | 1970-07-02 | Emsland Spanplatten Kg Hans St | Verfahren und Anlage fuer die Aufbereitung von Holzwerkstoff fuer die Herstellung von Spanplatten mit zumindest einseitiger Feinstoffdeckschicht |
-
1981
- 1981-05-22 SE SE8103255A patent/SE426371C/sv not_active IP Right Cessation
-
1982
- 1982-05-19 EP EP82850116A patent/EP0065941A3/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR926024A (fr) * | 1946-04-25 | 1947-09-19 | Procédé pour la fabrication de plaques pressées formées de plusieurs couches de particules de bois et de liant et plaque pressée obtenue au moyen de ce procédé | |
FR1318585A (fr) * | 1962-03-30 | 1963-02-15 | August Moralt | éléments de forme à base de poudre de bois |
DE1528232A1 (de) * | 1965-10-01 | 1970-07-02 | Aicher Geb | Spanplatte und Verfahren zu ihrer Herstellung |
FR1486810A (fr) * | 1966-07-15 | 1967-06-30 | Schenck Gmbh Carl | Procédé et installation pour la fabrication d'agglomérés, notamment de panneaux ou de plaques, à partir d'une nappe de matière dispersable formée de plusieurs chouches |
DE1806210A1 (de) * | 1968-10-31 | 1970-07-02 | Emsland Spanplatten Kg Hans St | Verfahren und Anlage fuer die Aufbereitung von Holzwerkstoff fuer die Herstellung von Spanplatten mit zumindest einseitiger Feinstoffdeckschicht |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU580720B2 (en) * | 1986-08-30 | 1989-01-27 | Hornitex Werke Gebr.Kunnemeyer G.M.B.H. & Co. Kg | Method of preparing wood-fibre boards |
US4883546A (en) * | 1986-08-30 | 1989-11-28 | Otto Kunnemeyer | Process for the manufacture of wood fiber boards |
US6284794B1 (en) | 1996-11-05 | 2001-09-04 | Head Explorer Aps | Method for treating tension-type headache with inhibitors of nitric oxide and nitric oxide synthase |
WO2005046950A1 (fr) * | 2003-11-13 | 2005-05-26 | Swedwood International Ab | Panneau de particules |
US8398905B2 (en) | 2003-11-13 | 2013-03-19 | Swedwood International Ab | Particle board |
NO339429B1 (no) * | 2003-11-13 | 2016-12-12 | Ikea Supply Ag | Sponplate samt fremgangsmåte ved fremstilling av denne |
Also Published As
Publication number | Publication date |
---|---|
SE426371B (sv) | 1983-01-17 |
EP0065941A3 (fr) | 1984-08-15 |
SE8103255L (sv) | 1982-11-23 |
SE426371C (sv) | 1984-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE DE FR IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): AT BE DE FR IT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19850416 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JOHANSSON, LARS-OLOF |