WO2005080281A1 - Procede d'application de motif a un panneau de verre - Google Patents

Procede d'application de motif a un panneau de verre Download PDF

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Publication number
WO2005080281A1
WO2005080281A1 PCT/IE2004/000027 IE2004000027W WO2005080281A1 WO 2005080281 A1 WO2005080281 A1 WO 2005080281A1 IE 2004000027 W IE2004000027 W IE 2004000027W WO 2005080281 A1 WO2005080281 A1 WO 2005080281A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating composition
glass panel
surface coating
pattern
nozzle
Prior art date
Application number
PCT/IE2004/000027
Other languages
English (en)
Inventor
William Gerard Carey
Original Assignee
Carey Brothers Limited
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 Carey Brothers Limited filed Critical Carey Brothers Limited
Priority to EP04714410A priority Critical patent/EP1718573A1/fr
Priority to PCT/IE2004/000027 priority patent/WO2005080281A1/fr
Publication of WO2005080281A1 publication Critical patent/WO2005080281A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/001—General methods for coating; Devices therefor
    • C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/06—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings
    • B44F1/063—Imitation of leaded light
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
    • C03C17/04—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/70—Properties of coatings
    • C03C2217/72—Decorative coatings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/6604—Units comprising two or more parallel glass or like panes permanently secured together comprising false glazing bars or similar decorations between the panes

Definitions

  • the present invention relates to a method for applying a pattern to a glass panel, and the invention also relates to a glass panel having a pattern applied thereto by the method.
  • the invention further relates to a double glazed unit for a window.
  • each window pane is formed by a double glazed unit comprising two glass panels, namely, an inner glass panel and an outer glass panel which are spaced apart one from the other
  • spacer bars which are arranged in a criss-cross manner between the inner and outer glass panels for simulating a Georgian or Jewish style lattice.
  • spacer bars are of metal, for example, hollow box section aluminium, and are of thickness corresponding to the spacing between the inner and outer glass panels, which typically, is 12mm.
  • the width of the spacer bars depends on the desired width of the criss-cross members being simulated, and can range from 6mm, in the case of a Vietnamese style window, to up to 28mm in the case of a Georgian style window.
  • the spacer bars act as a cold bridge which conducts heat between the inner and outer glass panels of the double glazed unit, thus significantly increasing heat loss through the double glazed unit.
  • the present invention is directed towards providing a method for applying a pattern to a glass panel and to a glass panel having a pattern applied thereto.
  • the invention is also directed to a double glazed window unit.
  • a method for applying a pattern to a glass panel comprising the steps of applying a surface coating composition to the glass panel to form the pattern, wherein the surface coating composition comprises a mineral based ink suitable for ceramics applications and an agglomerating agent for agglomerating the molecules of the mineral based ink together, and the surface coating composition is applied to the glass panel by airless spraying.
  • the surface coating composition comprises a mineral based ink suitable for ceramics applications and an agglomerating agent for agglomerating the molecules of the mineral based ink together, and the surface coating composition is applied to the glass panel by airless spraying.
  • the mineral based ink is in powder form prior to mixing with the agglomerating agent.
  • the particle size of the mineral based ink powder is relatively small.
  • the particle size of the mineral based ink powder is in the range of 1 micron to 10 microns.
  • the particle size of the mineral based ink powder is in the range of 1 micron to 7.6 microns.
  • the mineral based ink comprises 2(2-butoxye thoxy) ethanol, lead cadmium.
  • the surface coating composition comprises a colour pigment for defining the colour of the pattern.
  • the agglomerating agent is a solvent, and preferably, is selected from any one or more of the following solvents: diethylene glycol monobutyl ether, propylene glycol methyl ether, methoxy-1 , 2-propanol, propylene glycol-1 -methyl ether, methoxy-1 , 2-hydroxpropane, and methyl propylene glycol.
  • the surface coating composition is applied by the airless spraying through a nozzle having a bore extending therethrough which converges in one plane in a downstream direction towards an outlet of the nozzle for defining the nozzle outlet as an elongated nozzle outlet.
  • the nozzle outlet defines a jet of the surface coating composition of substantially rectangular transverse cross-section.
  • the nozzle outlet defines a jet of the surface coating composition of transverse cross-section having a transverse length which is considerably greater than the transverse width of the cross-section.
  • the nozzle outlet defines a jet of the surface coating composition of transverse cross-section of transverse length which is at least five times the transverse width of the cross- section.
  • the nozzle outlet defines a jet of the surface coating composition of transverse cross-section of transverse length which is at least ten times the transverse width of the cross-section.
  • the bore of the nozzle diverges in a downstream direction in a plane at right angles to the plane in which the bore converges for defining the nozzle outlet as an elongated nozzle outlet.
  • the bore of the nozzle diverges in a downstream direction at a rate which is such as to provide the jet of the surface coating composition to exit the nozzle outlet in a fan shape.
  • the bore of the nozzle diverges in a downstream direction at a rate which is such as to provide the jet of the surface coating composition to exit the nozzle outlet in a fan shape, the fan having diverging edges which diverge at an angle in the range of 5° to 90°, and preferably, in the range of 10° to 90°, and advantageously, in the range of 30° to 90°, and more preferably, in the range of 30° to 60°.
  • the bore of the nozzle diverges in a downstream direction at a rate which is such as to provide the jet of the surface coating composition to exit the nozzle outlet in a fan shape, the fan having diverging edges which diverge at an angle of approximately 30°.
  • the length of the nozzle outlet is at least five times greater than the width of the nozzle outlet.
  • the length of the nozzle outlet is at least ten times greater than the width of the nozzle outlet.
  • the length of the nozzle outlet is at least fifteen times greater than the width of the nozzle outlet.
  • an upstream portion of the bore of the nozzle is of circular transverse cross-section prior to the commencement of converging of the bore.
  • the circular upstream portion of the bore of the nozzle is of diameter in the range of 0.015mm to 0.25mm, and advantageously, in the range of 0.015mm to 0.175mm.
  • one of the nozzle and the glass panel is moved relative to the other for applying the surface coating composition to the glass panel, the speed of relative movement between the nozzle and the glass panel being controlled for depositing the surface coating composition on the glass panel to a desired depth.
  • the spacing of the nozzle outlet of the nozzle from the glass panel is selected to minimise feathering of edges defining the pattern.
  • the spacing of the nozzle outlet from the glass panel is selected for determining the transverse cross-sectional length of the jet of the surface coating composition impinging on the glass panel.
  • the nozzle outlet is spaced apart from the glass panel a distance in the range of 1mm to 40mm.
  • the nozzle outlet is spaced apart from the glass panel a distance in the range of 10mm to 40mm.
  • the nozzle outlet is spaced apart from the glass panel a distance of approximately 20mm.
  • the surface coating composition is pressurised for the airless spraying thereof.
  • the surface coating composition is pressurised at a pressure in the range of 40 bar to 300 bar for the airless spraying thereof.
  • the pressure of the surface coating composition is controlled for depositing the surface coating composition on the glass panel to a desired depth.
  • the surface coating composition is deposited on the glass panel to a depth of at least 150 microns.
  • the surface coating composition is deposited on the glass panel to a depth of at least 175 microns. More preferably, the surface coating composition is deposited on the glass panel to a depth of at least 200 microns.
  • the surface coating composition is deposited on the glass panel to a depth in the range of 200 microns to 1200 microns, and ideally, the surface coating composition is deposited on the glass panel to a depth in the range of 200 microns to 250 microns.
  • the glass panel with the surface coating composition forming the pattern thereon is subjected to a high temperature heat treatment for fusing the surface coating composition forming the pattern to the glass panel.
  • the glass panel with the surface coating composition forming the pattern thereon is subjected to the high temperature heat treatment at a temperature in the range of 650°C to 750°C.
  • the surface coating composition forming the pattern is fused to the glass panel during heat treatment of the glass panel for toughening thereof.
  • the glass panel is subjected to a low temperature heat treatment for drying the surface coating composition forming the pattern thereon prior to being subjected to the high temperature heat treatment.
  • the glass panel with the surface coating composition forming the pattern thereon is subjected to the low temperature heat treatment at a temperature in the range of 90°C to 100°C.
  • the low temperature heat treatment of the glass panel is carried out by infrared radiation.
  • the pattern is a criss-cross pattern for simulating a lattice type window.
  • the criss-cross pattern simulates a Georgian lattice type window.
  • the criss-cross pattern simulates a Very thin lattice type window.
  • the invention also provides a glass panel having a pattern applied thereto, the pattern being applied to the glass panel by the method according to the invention.
  • the glass panel is a window pane.
  • the glass panel is one of a pair of glass panels of a double glazed window unit.
  • the invention also provides a double glazed window unit having an inner glass panel and a spaced apart outer glass panel, the outer glass panel having an inner surface facing an inner surface of the inner glass panel, a pattern being applied to the inner surface of one of the inner and outer glass panels by the method according to the invention.
  • the pattern is applied to the inner surface of the outer glass panel.
  • Fig. 1 is a front elevational view of a double glazed window unit according to the invention
  • Fig. 2 is a transverse cross-sectional side elevational view of the double glazed window unit on the line ll-ll of Fig. 1 ,
  • Fig. 3 is an enlarged perspective view of a portion of the double glazed window unit of Fig. 1 ,
  • Fig. 4 is a perspective view of a spray nozzle for use in the method according to the invention for applying a pattern to the double glazed window unit of Fig. 1 ,
  • Fig. 5 is a transverse cross-sectional side elevational view of the nozzle on the line V-V of Fig. 4, and
  • Fig. 6 is a transverse cross-sectional end elevational view of the nozzle on the line VI-VI of Fig. 4,
  • Fig. 7 is a diagrammatic side elevational view of the spray nozzle of Fig. 4 mounted relative to a glass panel of the double glazed window unit of Fig. 1 during spraying of the pattern onto the glass panel, and
  • Fig. 8 is a diagrammatic top plan view of the spray nozzle and glass panel of Fig. 7.
  • the double glazed window unit 1 comprises an inner glass panel 2, and an outer glass panel 3.
  • the inner and outer glass panels 2 and 3 are spaced apart and define a cavity 4 therebetween.
  • a spacer member 6 extends around the periphery of the inner and outer glass panels 2 and 3 between the respective glass panels 2 and 3 for spacing the panels 2 and 3 apart to form the cavity 4.
  • a sealing band 7 extends around the periphery of the double glazed unit 1 , and sealably engages the spacer member 6 and peripheral edges 8 and 9 of the inner and outer panels 2 and 3, respectively, for sealing the cavity 4.
  • the inner panel 2 in this embodiment of the invention is of a heat reflective glass. Such heat reflective glasses will be well known to those skilled in the art, although it will be appreciated that it is not necessary for either of the panels to be of heat reflective glass.
  • a pattern 10 which in this embodiment of the invention simulates a Georgian style lattice window is applied to an inner surface 11 of the outer panel 3 within the cavity 4 prior to assembling the inner and outer panels 2 and 3 of the double glazed unit 1.
  • the method for applying the pattern 10 to the outer panel 3 comprises applying a surface coating composition, which forms the pattern, to the inner surface 11 of the outer panel 3 by airless spraying as will be described below.
  • the pattern 10 comprises a plurality of horizontal bands 14 and vertical bands 15 which simulate the lattice.
  • the horizontal and vertical bands 14 and 15 are of width l of 20mm, and the surface coating composition is deposited to a depth riof approximately 200 microns in order to ensure that the bands are opaque.
  • the method is such as to ensure that edges 16 of the bands 14 and 15 are sharply defined, and are not feathered.
  • the surface coating composition comprises a mineral based ink in powder form which is mixed with an agglomerating agent in liquid form.
  • a colour pigment in powder form is added to the mineral based ink as appropriate.
  • the agglomerating agent is a solvent, namely, diethylene glycol monobutyl ether manufactured by Fluka Chemie GmbH of Bucks, Switzerland and supplied by Sigma Aldrich Chemie GmbH.
  • the bands 14 and 15 are white, and thus, the colour pigment is a suitable white pigment in powder form and is added to the mineral based ink prior to mixing with the solvent.
  • the mineral based ink is supplied by Johnson Matthey PLC of Stoke on Trent, England and is supplied under the name of fine white and contains 2(2-butoxye thoxy) ethanol, lead cadmium.
  • the sizes of the particles of the mineral based ink ranges from 1 micron to 7.6 microns.
  • the solvent is mixed with the mineral based ink in the proportion four parts by volume mineral based ink powder to approximately one part solvent and the mineral based ink and solvent are thoroughly mixed to form the surface coating composition for applying to the outer panel 3 by airless spraying.
  • the surface coating composition is pressurised to a pressure in the range of 40 bar to 300 bar, and typically, 140 bar, and is applied to the outer panel 3 by the airless spraying through a spray nozzle 20.
  • the spray nozzle 20 defines a substantially rectangular shaped nozzle outlet 22 through which the pressurised surface coating composition is applied to the outer panel 3 to form the pattern 10.
  • a bore 23 extends through the spray nozzle 20 from an upstream end 24 to a downstream end 25 where it terminates in the nozzle outlet 22 for accommodating the pressurised surface coating composition therethrough.
  • An upstream portion 27 of the bore 23 extends to a position 28, and is of circular transverse cross-section of diameter D of approximately 7 microns.
  • a downstream portion 30 of the bore 23 converges in a plane 31 in a downstream direction from the position 28 to the nozzle outlet 22 and defines long edges 33 of the nozzle outlet 22. Additionally, the downstream portion 30 of the bore 23 diverges in a plane 34, which is at right angles to the plane 31 , from the position 28, in a downstream direction to the nozzle outlet 22 for defining short edges 35 of the nozzle outlet 22.
  • the long edges 33 and the short edges 35 define the substantially rectangular shape of the nozzle outlet 22.
  • the transverse length L of the nozzle outlet 22 along the plane 34 is approximately 2mm, while the width t of the nozzle outlet 22 along the plane 31 is approximately 0.12mm.
  • the angle at which the downstream portion 30 of the bore 23 diverges in the plane 34 is such as to form a jet 36 of the surface coating composition to issue from the nozzle outlet 22 with an included fan angle ⁇ of approximately 30°, see Fig. 7.
  • a jig (not shown) is provided for supporting the outer panel 3 horizontally with the inner surface 11 to which the pattern 10 is to be applied facing upwardly.
  • the nozzle 20 is carried on a numerically controlled carrier (also not shown), and is directed downwardly for applying the jet 36 of the surface coating composition to the inner surface 11 of the outer panel 3 so that the jet 36 is directed vertically downwardly and perpendicular to the inner surface 11.
  • the numerically controlled carrier urges the spray nozzle 20 at an appropriate speed relative to the inner surface 11 of the outer panel 3, which is set depending on the pressure to which the surface coating composition is pressurised, so that the surface coating composition is deposited to a depth d of 200 microns on the inner surface 11 for forming the bands 14 and 15.
  • the spacing of the nozzle outlet 22 above the inner surface 11 of the outer panel 3 is set at a distance S, see Fig. 7, such that over-spray is minimised and in practice is eliminated for avoiding feathering of the edges 16 of the bands 14 and 15. It has been found that with a fan angle ⁇ of 30° and the pressure set at approximately 140 bar, the optimum spacing S between the nozzle outlet 22 and the inner surface 11 is approximately 20mm.
  • the width l/l of the bands 14 and 15, as well as being determined by the distance S between the nozzle outlet 22 and the inner surface 11 is also determined by angling the nozzle outlet 22 relative to a central axis 38 of the bands 14 and 15, so that the plane 34 defined by the nozzle 20 makes an angle ⁇ with the central axis 38.
  • the angle ⁇ is approximately 45°. Where it is desired to form a wider band than the bands 14 and 15, the angle ⁇ is appropriately increased. To form a narrower band the angle ⁇ is appropriately decreased.
  • the nozzle 20 is oriented relative to the central axis 38 until the angle ⁇ is approximately zero.
  • the nozzle 20 is oriented relative to the central axis 38 defined by the band so that the plane 34 defined by the nozzle 20 and the central axis 38 defined by the band substantially coincide with each other.
  • the numerically controlled carrier urges the spray nozzle 20 at an appropriate speed relative to the inner surface 11 of the outer panel 3 for forming the vertical bands 15 first, and when the vertical bands 15 have been formed, the numerical controlled carrier (not shown) then similarly urges the spray nozzle 20 relative to the inner surface 11 of the outer panel 3 for forming the horizontal bands 14.
  • the outer panel 3 is subjected to a low temperature infrared radiation heat treatment for drying the surface coating composition forming the bands 14 and 15.
  • the low temperature heat treatment is carried out at a temperature in the range of 90°C to 100°C for a time period of approximately ten minutes for drying the surface coating composition.
  • the outer panel 3 is then placed in a toughening oven for toughening of the glass of the outer panel 3.
  • the temperature of the outer panel 3 and the surface coating composition of the bands 14 and 15 is raised to a temperature in the range of 650°C to 750°C, and typically, to a temperature in the order of 700°C, which as well as toughening the glass of the outer panel 3 also causes the surface coating composition of the bands 14 and 15 to be fused with the glass of the outer panel 3, thereby effectively permanently securing the bands 14 and 15 to the outer panel 3.
  • the outer panel 3 is subjected to the toughening temperature of 700°C for a period of approximately one and a half minutes, upwards. Thereafter the outer panel 3 is cooled.
  • the rate of cooling may have an effect on the toughening of the glass, it is not critical from the point of view of fusing the surface coating composition of the bands 14 and 15 to the glass of the outer panel 3. Once the surface coating composition of the bands 14 and 15 and the glass have been raised to a temperature of approximately 700°C, the surface coating composition is fused to the glass, and thereafter all that is required is to cool the outer panel 3.
  • the outer panel 3 After the outer panel 3 has been cooled to room temperature, the outer panel 3 is assembled with the inner panel 2 to form the double glazed window unit 1.
  • the advantages of the invention are many.
  • the pattern is formed on the outer panel to a reasonable depth, in the order of 200 microns without feathered edges provides a window pane which effectively simulates a Georgian or Jerusalem style window.
  • the absence of feathering on the edges of the pattern is achieved by applying the surface coating composition by airless spraying.
  • conventional air spraying could lead to feathering of the edges of the pattern as a result of air entrained in the surface coating composition when impinging on the glass panel.
  • the provision of the mineral based ink in the surface coating composition, and in particular the provision of the agglomerating agent in the surface coating composition also assists in providing the pattern with sharp unfeathered edges.
  • the agglomerating agent assists in binding the molecules of the mineral based ink, thereby minimising any danger of feathering of the edges.
  • the provision of the agglomerating agent as a solvent further assists in the absence of feathering of the edges of the pattern.
  • the mineral based ink in powder form with particles of size in the range of 1 micron to 10 microns permits the surface coating composition to be applied to a reasonable depth in one application of the surface coating composition. Indeed, by providing the mineral based ink to be of particles of sizes in the range from 1 micron to 7.6 microns permits the surface coating composition to be applied to the panel to a depth of approximately 200 microns in one application. Additionally, providing the mineral based ink of the surface coating composition to be of such particle size also, it is believed, facilitates in avoiding feathering of the edges of the pattern.
  • drying and fusing temperatures have been described, it will be readily apparent to those skilled in the art that other drying and fusing temperatures may be used. It will also be appreciated that while it is preferable it is not essential that the surface coating composition forming the pattern should be dried prior to fusing the pattern to the glass. The fusing could commence immediately the pattern had been applied to the glass. It will also be appreciated that while in this embodiment of the invention the fusing of the surface coating composition to the glass has been carried out simultaneously with a toughening process for toughening the glass, the surface coating composition may be fused to the glass without necessarily toughening the glass.
  • the surface coating composition has been described as comprising a specific mineral based ink, it is envisaged that other suitable mineral based inks may be used. However, it is desirable that the mineral based ink should be suitable for ceramics applications, and also suitable for fusing with the glass panel. Additionally, it is desirable that the mineral based ink should be provided in powder or particulate form of particle size not less than 1 micron, and preferably, the particle size should be in the range of 1 micron to 7.6 microns.
  • agglomerating agent may be used besides a solvent
  • a solvent is used as the agglomerating agent
  • suitable solvents besides that described may be used, for example, another suitable solvent is a solvent sold by Shell Chemicals under the trade name Methyl PROXITOL, particulars of which are set out in the Data Sheet No. IS 3.4.1 A of Shell Chemicals.
  • colour pigment has been described as being a white colour pigment, the colour pigment selected will depend on the desired colour of the pattern to be applied to the glass panel.
  • spray nozzle may be used, and needless to say, the surface coating composition may be pressurised during the airless spraying to other pressures besides that described. Needless to say, the spacing of the spray nozzle from the surface to which the pattern is being applied may be varied, and indeed, would be varied depending on other variables in the airless spraying process. Additionally, it is envisaged that the nozzle may be provided in order to provide jets of the surface coating composition issuing therefrom of included fan angles other than 30°. It is also envisaged that the bore of the spray nozzle and the nozzle outlet may be of oval cross-section.
  • the nozzle outlet has been described as being of length greater than its width, in certain cases, it is envisaged that the nozzle outlet may be of circular transverse cross-section, or may be of square transverse cross-section. Indeed, in certain cases, particularly when forming a Vietnamese type pattern, it is envisaged that the nozzle outlet may be of either circular or square transverse cross-section.
  • the glass panel has been described as being one of the glass panels of a double glazed unit, it will be readily apparent to those skilled in the art that the glass panel could be provided for use as a single glazed window pane. In general, it is envisaged that it is preferable to locate the pattern on the side of the glass panel which in use forms the inner side of a single glazed window pane.
  • glass panel has been described as being a window pane, it will be readily apparent to those skilled in the art that a pattern may be applied to any glass panel, be it a window pane or otherwise, and such a method and a glass panel would be within the scope of the invention.
  • a single spray nozzle with a single nozzle outlet of the type described is preferable, and in particular, a spray nozzle which outputs a substantially single plane fan shaped jet of the surface coating composition. While specific dimensions of bore size and nozzle outlet size have been described, it is envisaged that a spray nozzle of different dimensions could be used.
  • the depth of the surface coating composition applied to the glass panel has been described as being 200 microns, it is envisaged that the surface coating composition may be applied to the glass panel to any desired depth, and indeed, it is envisaged that the surface coating composition may be applied to the glass panel to a depth of up to 1 ,200 microns, and in certain cases, even to greater depths.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé d'application de motif (10) à un panneau de verre, permettant de simuler une fenêtre à carreaux sertis de plomb de style géorgien : application d'une composition de revêtement de surface pour former des bandes (14, 15) constituant le motif (10) par pulvérisation sans air via une buse (20). La composition comprend une encre minérale du type approprié aux travaux de céramique, sous forme de poudre ayant des particules dont la taille est comprise entre 1 micron et 7,6 microns. On mélange l'encre avec un solvant liquide pour agglomérer les particules, et un pigment coloré est ajouté selon les besoins. La composition est appliquée à une surface interne (11) du panneau (3) jusqu'à une profondeur d'environ 200 microns pour la formation des bandes (14, 15), mais on peut aussi aller jusqu'à une profondeur de 1 200 microns. On sèche ensuite la composition des bandes (14, 15), et le panneau (3) est alors durci à une température de durcissement de l'ordre de 700 °C pendant une durée d'environ une minute et demi, qui induit par ailleurs la fusion de la composition formant le motif (10) avec le verre.
PCT/IE2004/000027 2004-02-25 2004-02-25 Procede d'application de motif a un panneau de verre WO2005080281A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04714410A EP1718573A1 (fr) 2004-02-25 2004-02-25 Procede d'application de motif a un panneau de verre
PCT/IE2004/000027 WO2005080281A1 (fr) 2004-02-25 2004-02-25 Procede d'application de motif a un panneau de verre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IE2004/000027 WO2005080281A1 (fr) 2004-02-25 2004-02-25 Procede d'application de motif a un panneau de verre

Publications (1)

Publication Number Publication Date
WO2005080281A1 true WO2005080281A1 (fr) 2005-09-01

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PCT/IE2004/000027 WO2005080281A1 (fr) 2004-02-25 2004-02-25 Procede d'application de motif a un panneau de verre

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EP (1) EP1718573A1 (fr)
WO (1) WO2005080281A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108333882A (zh) * 2018-02-12 2018-07-27 深圳市启华自动化设备有限公司 3d玻璃曝光显影制作方法

Citations (7)

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