EP1637235A2 - Application des revêtements en poudre sur un plateau de meuble en bois - Google Patents

Application des revêtements en poudre sur un plateau de meuble en bois Download PDF

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Publication number
EP1637235A2
EP1637235A2 EP05019648A EP05019648A EP1637235A2 EP 1637235 A2 EP1637235 A2 EP 1637235A2 EP 05019648 A EP05019648 A EP 05019648A EP 05019648 A EP05019648 A EP 05019648A EP 1637235 A2 EP1637235 A2 EP 1637235A2
Authority
EP
European Patent Office
Prior art keywords
coating
furniture panel
powder coating
corona discharge
powder
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.)
Granted
Application number
EP05019648A
Other languages
German (de)
English (en)
Other versions
EP1637235B1 (fr
EP1637235A3 (fr
Inventor
Kurt Meinberg
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.)
BERGMEIER, MANFRED
FUECHTENKOETTER GUENTER
MEINBERG, KURT
MOELLER, BERNHARD
Wallmann Ulrich
Original Assignee
Fuechtenkotter Guenter
Moller Bernhard
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35429230&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1637235(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fuechtenkotter Guenter, Moller Bernhard filed Critical Fuechtenkotter Guenter
Publication of EP1637235A2 publication Critical patent/EP1637235A2/fr
Publication of EP1637235A3 publication Critical patent/EP1637235A3/fr
Application granted granted Critical
Publication of EP1637235B1 publication Critical patent/EP1637235B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
    • B05D3/141—Plasma treatment
    • B05D3/142—Pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B05D1/06—Applying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B05D7/08—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood using synthetic lacquers or varnishes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B05D1/045—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field on non-conductive substrates

Definitions

  • the present invention relates to a method for coating a furniture panel made of a wood material according to the preamble of claim 1.
  • EP 0 853 504 B1 to heat the wood-based panel and at the same time apply the powder so that it melts and forms an adhesive bond with the surface of the panel.
  • a powder coating is used, which has a melting temperature of about 100 ° Celsius, so that the wood-based panel up to this temperature, but at least must be heated to almost this temperature. Under certain circumstances, a reheating must be carried out before the molten powder coating is cured by UV rays.
  • the known method involves some disadvantages, both manufacturing and the quality of the coating limiting. It should be mentioned in the first place that it can come to the outgassing of the moisture inside by heating the wood material, which leads to cracking at the longitudinal and transverse edges. As has been shown, these irreversible damage already occur at a surface temperature of 90 ° Celsius and a penetration depth of the thermal energy of about 5 mm.
  • the present invention is therefore based on the object, so to develop a method of the generic type that with little design effort, a qualitative improvement of the coating is possible.
  • the corona treatment leads to an improvement in the surface tension of the furniture panel of a wood material, which has an increase in the adhesion forces result, whereby the subsequently applied powder coating not adhesive, but electrostatically adheres. Intensive heating of the material plate is no longer necessary.
  • the inventive method results in that the powder coating can now be used without manufacturing and quality problems in the furniture sector, the achievable results in terms of surface finish also meet the highest requirements. It is also noteworthy that the procedural quality improvement significantly increases the economic efficiency of the process.
  • the new method can be realized with a low apparatus design, since corona treatment plants, as they were previously used for the production of adhesion forces to plastics, can be integrated as ready-made devices in existing paint shops, without the need for significant structural changes. This circumstance allows the retrofitting of existing coating equipment, which is also to be regarded as a clear advantage.
  • the corona discharge can also be carried out in the edge regions of the furniture panel with the same effect as in the flat areas, so that these edge areas, which were considered to be particularly critical processing zones, also without loss of quality with a powder coating can be provided.
  • the painting of the furniture panel is aligned both horizontally and vertically possible, whereby the horizontal transport accommodates an optimized production.
  • the surface of the furniture panel must be cleaned of hand sweat, grease or the like. This is usually done by grinding.
  • the corona discharge which practically can be omitted, the additional processing. Projecting wood fibers, the size of which is measured in the micro range, are burned off or blown away by the discharge flame produced during the corona discharge, so that afterwards the surface can be described as finely cleaned.
  • the corona treatment and then the powder coating of a first side of the furniture panel for example, the front and the peripheral edges.
  • the previously coated edge is subjected to a further corona discharge, so that this edge is prepared for the adhesion of the following and thus, so to speak second layer in the desired manner.
  • a second coating of the surfaces of the furniture panel as a whole may be provided in the event that the powder coating of the first order does not meet the required quality standards, with by post processing, for example, small pimples or pimples removed, existing holes sanded and simple color impurities are eliminated. Thereafter, the furniture panel is subjected to the process of the invention again.
  • the invention offers considerable cost advantages, since it can be worked practically without jerking.
  • a second coating can take place, that is, the already powder-coated surface of the Furniture panel is also subjected to a corona treatment and then applied a second layer of powder.
  • corona discharge takes place with the introduction of an aerosol into the discharge zone.
  • corona discharge under these conditions is particularly effective.
  • a second process cycle may be useful.
  • a so-called low-temperature powder can be used.
  • the single figure shows schematically a device for coating a furniture panel in a perspective view.
  • a device for coating a furniture panel made of a wood material with powder coating is shown, wherein the furniture panel is provided with the reference numeral 1 as a whole.
  • the furniture panel 1 is guided horizontally by means of a conveyor belt 2 under the opposite stationary processing stations, wherein as a result of the processing steps, first a device for corona treatment 3, followed by a coating system 4 and a curing device are arranged.
  • the powder coating is applied by means of the coating device 4.
  • the subsequent hardening device 5 first of all the applied powder coating is melted by means of infrared irradiation, so that a very smooth, closed paint coating results, which is then cured by ultraviolet light.
  • An unillustrated turning device may follow, so that the furniture panel 1 is rotated and stored so that the hitherto untreated side can also be processed in the above sense.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
EP05019648A 2004-09-10 2005-09-09 Application des revêtements en poudre sur un plateau de meuble en bois Active EP1637235B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004043725A DE102004043725A1 (de) 2004-09-10 2004-09-10 Verfahren zum Beschichten eines Werkstückes aus Holz oder einem Holzwerkstoff

Publications (3)

Publication Number Publication Date
EP1637235A2 true EP1637235A2 (fr) 2006-03-22
EP1637235A3 EP1637235A3 (fr) 2006-05-03
EP1637235B1 EP1637235B1 (fr) 2007-12-05

Family

ID=35429230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05019648A Active EP1637235B1 (fr) 2004-09-10 2005-09-09 Application des revêtements en poudre sur un plateau de meuble en bois

Country Status (3)

Country Link
EP (1) EP1637235B1 (fr)
AT (1) ATE380075T1 (fr)
DE (2) DE102004043725A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264004A (zh) * 2013-05-23 2013-08-28 高碑店顺达墨瑟门窗有限公司 一种木材浇淋机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014103201U1 (de) 2013-07-11 2014-08-20 Kds Holding Gmbh Applikator zum Auftragen eines lichtaushärtenden Verbundmaterials
DE202014103202U1 (de) 2014-07-11 2015-10-13 Kds Holding Gmbh Applikator zum Auftragen eines lichtaushärtenden Verbundmaterials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853504B1 (fr) 1995-08-10 2002-11-27 Triline Ab Dispositif de revetement de poudre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755189B2 (de) * 1977-12-10 1980-11-27 Detmolder Lackfabrik Niesen & Soehngen, 4930 Detmold Verfahren zur Ausbildung geschlossener und festhaftender Lackschichten aus UV- oder ESH- Lacken auf inhomogenen, insbesondere teilweise bedruckten Substratoberflächen
DE19533858B4 (de) * 1995-09-13 2005-09-22 IHD Institut für Holztechnologie Dresden gGmbH Verfahren zum elektrostatischen Beschichten von Holz und Holzwerkstoffen
WO1997010903A1 (fr) * 1995-09-22 1997-03-27 Jaervelae Pentti Procede de revetement d'un produit
AU2001286537A1 (en) * 2000-08-16 2002-02-25 Randall Craft Process for forming a reflective surface
US6458250B1 (en) * 2000-10-26 2002-10-01 E. I. Du Pont De Nemours And Company Process for the application of powder coatings to non-metallic substrates

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853504B1 (fr) 1995-08-10 2002-11-27 Triline Ab Dispositif de revetement de poudre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103264004A (zh) * 2013-05-23 2013-08-28 高碑店顺达墨瑟门窗有限公司 一种木材浇淋机

Also Published As

Publication number Publication date
EP1637235B1 (fr) 2007-12-05
DE102004043725A1 (de) 2006-03-30
EP1637235A3 (fr) 2006-05-03
ATE380075T1 (de) 2007-12-15
DE502005002137D1 (de) 2008-01-17

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