EP0968770A1 - Verfahren und Vorrichtung zum Beschichten mit beispielsweise Farbe oder Lack - Google Patents

Verfahren und Vorrichtung zum Beschichten mit beispielsweise Farbe oder Lack Download PDF

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Publication number
EP0968770A1
EP0968770A1 EP99401384A EP99401384A EP0968770A1 EP 0968770 A1 EP0968770 A1 EP 0968770A1 EP 99401384 A EP99401384 A EP 99401384A EP 99401384 A EP99401384 A EP 99401384A EP 0968770 A1 EP0968770 A1 EP 0968770A1
Authority
EP
European Patent Office
Prior art keywords
coating
article
paint
varnish
effect
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
EP99401384A
Other languages
English (en)
French (fr)
Other versions
EP0968770B1 (de
Inventor
Alain Bethune
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.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of EP0968770A1 publication Critical patent/EP0968770A1/de
Application granted granted Critical
Publication of EP0968770B1 publication Critical patent/EP0968770B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/08—Spreading liquid or other fluent material by manipulating the work, e.g. tilting
    • 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
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B05D1/005—Spin coating

Definitions

  • the present invention relates to a method and a device for applying a coating such as paint or varnish on an article.
  • the varnish is sprayed, conventionally, with a spray gun at a painting or varnishing station.
  • the painting or varnishing station is generally located in a location away from the molding station and the item is exposed during transport towards this painting or varnishing station with dirt and if necessary at a risk damage to the decoration made on it.
  • the present invention relates to a new method for applying a coating such as a paint or varnish on a hollow article, in particular an article in molded plastic material such as a housing body, a housing cover, a plug or a bottle, the opening of the bottle can be narrower than the bottom.
  • This process is characterized in that it includes the operation of depositing a predetermined quantity of coating in the fluid state at the center of a surface of the article and spread it on it by rotating the article on itself.
  • the coating is deposited on the article without having to be dispersed beforehand in the atmosphere in the form of fine droplets.
  • the invention thus makes it possible to reduce the amount of paint or varnish coming in contact with the atmosphere and therefore reduce solvent losses by evaporation.
  • This varnish or this solvent-free paint is advantageously heated, being preferably brought to a temperature higher than room temperature, for example a temperature between 40 ° C and 50 ° C, in order to increase its fluidity.
  • the coating can be applied automatically in a closed enclosure, near the molding station, this enclosure being more compact than traditional equipment.
  • the surface on which the coating is deposited is located inside the article and a sufficient amount of coating for it to rise under the effect of force at least partially centrifugal along the side wall of the article.
  • the coating deposited at the bottom of the interior surface rises under the effect of centrifugal force along the side wall of the article even if it is vertical.
  • the side wall of the article is at least partially cylindrical with the same axis as the axis of rotation about which is driven article.
  • the side wall of the article can be stepped.
  • the invention also makes it possible to paint or varnish articles which do not could not be spray painted or varnished in a conventional manner, either because the opening is too small to allow the introduction of a spray nozzle to inside the article, either because the air at the bottom of the article constitutes a gas mattress tending to oppose the diffusion of the spray aerosol.
  • the coating which is used does not contain any solvent, it is possible without fear of depositing the excess coating on the surface to be coated since it is easy to recycle without risk to the environment a residual amount of coating which would find it ejected from the article during its rotation.
  • stopping the rotational drive of the latter is preferably carried out immediately, by blocking for example of the drive mechanism, to avoid possible sagging on the outer surface of the item.
  • the surface on which is deposited the coating spreading under the effect of centrifugal force is substantially flat or slightly domed and located outside the article.
  • the coating can be applied by spraying in the form of a spray, by spraying or by other means over the entire outer surface of the article which is not covered by spreading the coating under the effect of centrifugal force.
  • the rotation speed of the latter is zero or very low (for example less than 5 r / s) to avoid the risk of ejection of the coating on first contact with the article.
  • the speed of rotation of the article increases very rapidly during start-up to avoid possible run-offs linked to the geometry of the surface on which the coating is spread out.
  • the article can reach, for example, a rotation speed of between 50 r / s and 100 rpm in less than a second.
  • Direct application of the coating to the exterior surface of the article may be carried out by means of a nozzle whose positioning and orientation are adjustable.
  • the means for applying the coating directly on the surface of the article has a nozzle inclined downwards and located slightly above the periphery of said substantially flat surface or slightly domed.
  • it is used to paint or varnish the interior surfaces and / or exterior of the article a coating which can crosslink under the effect of radiation ultraviolet.
  • the coating deposited on the article is crosslinked then that it is still rotating.
  • the device comprises an enclosure inside which takes place the item rotation.
  • the means for applying the coating directly to the article includes a nozzle whose inclination and positioning relative to the support rotary are adjustable.
  • the device further comprises means for exposing the article to ultraviolet radiation.
  • the distribution member is connected to a reservoir containing a coating without organic solvent.
  • the device includes means for warm the coating.
  • the invention is particularly suitable for applying a coating to a hollow article such as a housing body, a housing cover, a stopper or a bottle.
  • the means for applying the coating directly to the rest of the surface of the article advantageously comprise a nozzle inclined downwards and situated slightly above the periphery of said substantially planar surface or slightly domed.
  • the subject of the invention is also a painted or varnished hollow article, characterized by the has a surface covered with a coating spread under the effect of force centrifugal.
  • This article may have at least part of its surface which is covered of a coating deposited by direct application, for example by spraying by means of a nozzle.
  • the deposited coating thickness is advantageously between 3 and 30 ⁇ m, and preferably between 8 and 25 ⁇ m.
  • the article may constitute a housing body, a housing cover, a plug or a bottle.
  • the coating used is advantageously a paint or varnish without solvents organic.
  • FIG. 1 There is shown in Figure 1 a device 1 for applying to an article 2 a coating such as paint or varnish.
  • the article 2 is here constituted by a cover of make-up case having a generally rectangular in shape.
  • the top 3 of this cover 2 is substantially planar and horizontal and the sides 4 are substantially vertical and directed downward.
  • the top 3 of the cover 2 could also be convex towards the outside by example.
  • the device 1 comprises on the one hand a dispensing member 5 making it possible to place in the center of the surface constituting the top 3 of the cover 2 a drop of paint or varnish and secondly means for directly applying the paint or the varnish on the sides 4 of the cover 2 and in the corners, these means being constituted by example by a nozzle 6 as shown.
  • the device 1 also comprises means 7 for supporting the cover 2, capable of driving the latter in rotation about a vertical axis of rotation X.
  • the cover 2 rotates inside an enclosure, not shown.
  • article 2 is rotated around the X axis by one revolution on itself.
  • the nozzle 6 is inclined slightly obliquely downwards and is situated slightly above of the cover 2 so as to be able to reach the corners of the latter.
  • the coating is emitted by nozzle 6 in the form of a jet and not an aerosol.
  • the latter After depositing the drop of paint or varnish on the cover, the latter is very quickly rotated to reach its rotation speed in less than 0.5 s nominal for example between 50 r / s and 100 r / s.
  • the workpiece is kept rotating at a speed of 50 to 100 r / s for 2 to 5 s in the example described.
  • a solvent-free varnish or paint which can crosslink is used. under the action of ultraviolet radiation.
  • the coating is heated in the example described to 45 ° C so as to be made more fluid.
  • the coating which is ejected from the article can be recovered in the enclosure and recycled after just a filtration operation.
  • the cover 2 is kept in rotation and subjected to ultraviolet radiation 8 causing it to crosslink as illustrated in the figure 5.
  • the coating used is preferably a paint or varnish without organic solvent, this coating being slightly warmed before application, by being brought for example to 45 ° C.
  • the coating can even gain the upper edge 14 of the cover 2, as illustrated in figure 10.
  • Nozzle 6 is not used when the coating is deposited on the surface inside of the article.
  • the article After the coating has been deposited and spread, the article is subjected for example to a ultraviolet radiation which causes its polymerization.
  • any hollow article such as a housing body, a housing cover, a stopper or a bottle, cylindrical or not, of circular section or not, the opening of which has a section for example between 0.25 and 10 cm 2 .
  • FIGS. 11 and 12 show two hollow articles, symmetrical of revolution, having a frustoconical side wall 16 widening towards the top in the case of the example of FIG. 11 and a stepped side wall comprising two truncated cones 17 and 18 in the case of FIG. 12.
  • the invention it is easy to deposit on an article a thickness of paint or varnish between 3 and 30 ⁇ m for example, this thickness being preferably between 8 and 25 ⁇ m.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
EP99401384A 1998-07-03 1999-06-09 Verfahren und Vorrichtung zum Beschichten mit beispielsweise Farbe oder Lack Expired - Lifetime EP0968770B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9808544A FR2780665B1 (fr) 1998-07-03 1998-07-03 Procede et dispositif pour appliquer un revetement tel qu'une peinture ou un vernis
FR9808544 1998-07-03

Publications (2)

Publication Number Publication Date
EP0968770A1 true EP0968770A1 (de) 2000-01-05
EP0968770B1 EP0968770B1 (de) 2003-12-10

Family

ID=9528237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401384A Expired - Lifetime EP0968770B1 (de) 1998-07-03 1999-06-09 Verfahren und Vorrichtung zum Beschichten mit beispielsweise Farbe oder Lack

Country Status (5)

Country Link
US (1) US6709698B1 (de)
EP (1) EP0968770B1 (de)
DE (1) DE69913438T2 (de)
ES (1) ES2212491T3 (de)
FR (1) FR2780665B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007269007A (ja) * 2006-03-08 2007-10-18 Ngk Insulators Ltd スラリー塗布装置、及びスラリー塗布欠陥検査装置
US20100233376A1 (en) * 2009-03-11 2010-09-16 Willaim Jardine Cook Mechanical traction improvement applied as a liquid

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804663A (en) * 1971-05-26 1974-04-16 Dow Chemical Co Method of internally coating rigid or semi-rigid plastic containers
EP0139478A1 (de) * 1983-09-23 1985-05-02 Unisys Corporation Verfahren zum Auftragen einer Oberschicht auf optische Aufzeichnungsträger
JPS62155965A (ja) * 1985-12-27 1987-07-10 Sony Corp 紫外線硬化形樹脂用スピンコ−タ
JPS63134076A (ja) * 1986-11-25 1988-06-06 Toshiba Corp 塗布方法及び塗布装置
EP0556784A1 (de) * 1992-02-18 1993-08-25 Nec Corporation Verfahren zur Herstellung einer Schicht auf einem Halbleiterkörper
JPH05259052A (ja) * 1992-03-10 1993-10-08 Kawasaki Steel Corp 半導体基板のスピンコーティング方法および装置
JPH0689868A (ja) * 1992-09-08 1994-03-29 Fuji Electric Co Ltd スピンコーティング方法
JPH07185414A (ja) * 1993-12-28 1995-07-25 Kirin Brewery Co Ltd 箱塗装装置
JPH07240360A (ja) * 1994-03-01 1995-09-12 Fujitsu Ltd 薬液塗布装置
JPH08148413A (ja) * 1994-11-24 1996-06-07 Kawasaki Steel Corp パーティクルの発生が抑止された塗布膜の形成方法
JPH08315729A (ja) * 1995-05-23 1996-11-29 Mitsubishi Electric Corp 陰極線管のスピンコーティング方法及び装置
US5711809A (en) * 1995-04-19 1998-01-27 Tokyo Electron Limited Coating apparatus and method of controlling the same
US5725903A (en) * 1992-06-29 1998-03-10 Lsi Logic Corporation Sedimentary deposition of photoresist on semiconductor wafer
WO1998011998A1 (en) * 1996-09-17 1998-03-26 2C Optics, Inc. Apparatus and method for coating and curing an optical element with a uv photosensitive coating
US5762708A (en) * 1994-09-09 1998-06-09 Tokyo Electron Limited Coating apparatus therefor

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CH608194A5 (en) * 1975-12-12 1978-12-29 Arx Ag Device for applying paint to the inner surfaces of pipes
JPS5493015A (en) * 1977-12-29 1979-07-23 Otani Denki Seisakushiyo Kk Inner surface coating of cylindrical glass form having bottom
DE3420859C2 (de) * 1984-06-05 1986-05-07 Alois 5202 Hennef Müller Verfahren und Vorrichtung zum Oberflächenbeschichten, insbesondere zum Lackieren von Kleinteilen
KR920000328B1 (ko) * 1988-09-29 1992-01-11 미쯔비시덴끼 가부시끼가이샤 대전방지 처리형 음극선관의 제조방법
JPH05113505A (ja) * 1991-10-22 1993-05-07 Mitsubishi Electric Corp 低反射膜付陰極線管およびその製造方法
SG130022A1 (en) * 1993-03-25 2007-03-20 Tokyo Electron Ltd Method of forming coating film and apparatus therefor
DE4329948A1 (de) * 1993-09-04 1995-03-09 Basf Lacke & Farben Vorrichtung zum Einbringen von Dichtungsmasse in Nockendrehverschlüsse, Verfahren zum Einbringen von Dichtungsmasse in Nockendrehverschlüsse sowie die Verwendung der Vorrichtung zum Einspritzen von Dichtungsmasse in Nockendrehverschlüsse
TW285779B (de) * 1994-08-08 1996-09-11 Tokyo Electron Co Ltd
US5753301A (en) * 1995-06-08 1998-05-19 Essilor Of America, Inc. Method for spin coating a multifocal lens
TW442336B (en) * 1997-08-19 2001-06-23 Tokyo Electron Ltd Film forming method

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804663A (en) * 1971-05-26 1974-04-16 Dow Chemical Co Method of internally coating rigid or semi-rigid plastic containers
EP0139478A1 (de) * 1983-09-23 1985-05-02 Unisys Corporation Verfahren zum Auftragen einer Oberschicht auf optische Aufzeichnungsträger
JPS62155965A (ja) * 1985-12-27 1987-07-10 Sony Corp 紫外線硬化形樹脂用スピンコ−タ
JPS63134076A (ja) * 1986-11-25 1988-06-06 Toshiba Corp 塗布方法及び塗布装置
EP0556784A1 (de) * 1992-02-18 1993-08-25 Nec Corporation Verfahren zur Herstellung einer Schicht auf einem Halbleiterkörper
JPH05259052A (ja) * 1992-03-10 1993-10-08 Kawasaki Steel Corp 半導体基板のスピンコーティング方法および装置
US5725903A (en) * 1992-06-29 1998-03-10 Lsi Logic Corporation Sedimentary deposition of photoresist on semiconductor wafer
JPH0689868A (ja) * 1992-09-08 1994-03-29 Fuji Electric Co Ltd スピンコーティング方法
JPH07185414A (ja) * 1993-12-28 1995-07-25 Kirin Brewery Co Ltd 箱塗装装置
JPH07240360A (ja) * 1994-03-01 1995-09-12 Fujitsu Ltd 薬液塗布装置
US5762708A (en) * 1994-09-09 1998-06-09 Tokyo Electron Limited Coating apparatus therefor
JPH08148413A (ja) * 1994-11-24 1996-06-07 Kawasaki Steel Corp パーティクルの発生が抑止された塗布膜の形成方法
US5711809A (en) * 1995-04-19 1998-01-27 Tokyo Electron Limited Coating apparatus and method of controlling the same
JPH08315729A (ja) * 1995-05-23 1996-11-29 Mitsubishi Electric Corp 陰極線管のスピンコーティング方法及び装置
WO1998011998A1 (en) * 1996-09-17 1998-03-26 2C Optics, Inc. Apparatus and method for coating and curing an optical element with a uv photosensitive coating

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Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 394 (C - 465) 23 December 1987 (1987-12-23) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 387 (C - 536) 14 October 1988 (1988-10-14) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 020 (E - 1489) 13 January 1994 (1994-01-13) *
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PATENT ABSTRACTS OF JAPAN vol. 096, no. 001 31 January 1996 (1996-01-31) *
PATENT ABSTRACTS OF JAPAN vol. 096, no. 010 31 October 1996 (1996-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 097, no. 003 31 March 1997 (1997-03-31) *

Also Published As

Publication number Publication date
FR2780665B1 (fr) 2000-09-15
DE69913438D1 (de) 2004-01-22
FR2780665A1 (fr) 2000-01-07
DE69913438T2 (de) 2004-10-07
EP0968770B1 (de) 2003-12-10
US6709698B1 (en) 2004-03-23
ES2212491T3 (es) 2004-07-16

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