EP0731758A1 - Procede de production de panneaux de verre decores - Google Patents

Procede de production de panneaux de verre decores

Info

Publication number
EP0731758A1
EP0731758A1 EP95902194A EP95902194A EP0731758A1 EP 0731758 A1 EP0731758 A1 EP 0731758A1 EP 95902194 A EP95902194 A EP 95902194A EP 95902194 A EP95902194 A EP 95902194A EP 0731758 A1 EP0731758 A1 EP 0731758A1
Authority
EP
European Patent Office
Prior art keywords
design
layer
glass
panel
transfers
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Withdrawn
Application number
EP95902194A
Other languages
German (de)
English (en)
Inventor
Leslie R. Easton
Nicholas L. Easton
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.)
STAINED GLASS SYSTEMS Ltd
Original Assignee
STAINED GLASS SYSTEMS Ltd
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 STAINED GLASS SYSTEMS Ltd filed Critical STAINED GLASS SYSTEMS Ltd
Publication of EP0731758A1 publication Critical patent/EP0731758A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B44F1/066—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings comprising at least two transparent elements, e.g. sheets, layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1716—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/175—Transfer using solvent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/02—Designs imitating natural patterns wood grain effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/12—Designs imitating natural patterns of leather

Definitions

  • the present invention relates to a method for making decorative glass panels, particularly but not exclusively glass panels that simulate panels of marble, granite or other stone, or other types of grained material such as leather or wood.
  • the method of the present invention may be used for producing glass panels which look like marble and can be used in applications, such as cladding buildings, where marble or other stone or other materials might have been used.
  • a method for producing a decorated glass panel comprising applying a design to one side of the glass panel as a water-slide transfer, the transfer comprising the design in vitreous enamels, subjecting the glass panel with the applied transfer to a glass-toughening heat treatment cycle, and including the step of applying a layer of material on the same side of the glass panel as the transfer, whereby the decorative effect is created by the design and the layer of material.
  • the layer of material may be a layer of pigmented material and may be opaque, semi-opaque, translucent or transparent material.
  • the layer is of solid uniform colour.
  • the word 'colour' includes white.
  • the layer of material is applied over the design.
  • the panel When viewed from the side of the glass opposite the side to which the design and covering layer are applied, the panel will create a decorative effect which depends on the nature of the design applied to the glass and of the covering layer applied.
  • the colour of the covering layer should be chosen to suit the colouring of the design in order to produce the desired decorative effect.
  • the design of the transfer may represent the fine detail for creating the desired finished decorative effect, such as the graining of marble or other stone or of other material such as leather or wood.
  • the layer of material produces the overall background colour.
  • the transfer may be produced in the manner described in my patent specification GB-A-2174383A.
  • a photograph of a piece of natural stone may be prepared and the transfer produced from the photograph by a known colour printing technique, using a mixture of glass frits and coloured metallic oxides in a printing medium as the printing ink.
  • the choice of colours and types of metallic oxides may have to be adapted to allow for the changes in colour that take place during the firing process.
  • the layer of material may simply be a layer of paint, or a layer of ceramic or vitreous enamel material or other pigmented material. If paint is used it is preferred that a two-part epoxy resin based paint be used.
  • the preferred covering is however a layer of ceramic or vitreous enamel material that is applied as a suspension by spraying, painting or roller.
  • the glass panel is subjected to a glass-toughening heat treatment cycle after the ceramic covering has been applied.
  • the panel may be subjected to a single firing process after both the design and the covering layer have been applied, or to a double firing process: a first heat treatment cycle after the design has been applied and a second heat treatment cycle after the covering has been applied.
  • the second cycle is a glass-toughening cycle.
  • the first cycle may also be a glass-toughening cycle or it may be a cycle at a lower temperature without the rapid cooling required to produce toughening.
  • the temperature of the first cycle may be only sufficient to burn off the printing medium and any cover coat of the transfer without causing fusing of the glass frit.
  • the panel may be subjected to the glass-toughening cycle before the layer of paint is applied and no further heat treatment may be necessary.
  • the paint is of the epoxy resin type it may be preferred to subject the panel to a heating up to say 150°C in order to accelerate the curing process.
  • the layer of material may also be formed by applying a layer of sheet material over the transfer after the transfer has been subjected to the glass- toughening heat treatment cycle.
  • An adhesive-backed plastics sheet material for example the material sold under the Trademark FABLON is suitable for this purpose. Such materials are suitable for applications where the glass panel will be used indoors.
  • transfers are applied to a glass panel with their edges overlapping one another.
  • the transfers are cut through in the region of the overlap along a line which follows the edge of a feature of the design, and the surplus portions of the transfers are removed.
  • a joint is formed between the adjacent transfers can be formed which is not noticeable in the finished product, and the effect of an obvious repeat pattern, which would result from using transfers with a pattern where one edge is designed to match up with the opposite edge, is avoided.
  • Figure 1 shows a perspective view of a water slide transfer used in a method according to the present invention
  • Figure 2 shows a plan view of a glass panel with transfers being applied according to the method of the present invention
  • Figure 3 shows a plan view on an enlarged scale of the panel of Figure 2 with the transfers being cut;
  • FIG. 4 and 5 shows perspective view of the panel of Figure 3 with surplus material being removed from the transfers
  • Figure 6 shows a perspective view of a covering being applied to the panel
  • Figure 7 shows in schematic form the panel being passed through a furnace during the toughening cycle
  • FIG 8 shows a cross section through the finished panel.
  • Water-slide transfers 10 bearing a coloured design are prepared as follows. A photograph of a piece of marble is prepared and using conventional printing techniques, the photograph is used to prepare screens for a multi-tone or multi-colour printing of transfers. The design of the transfer reproduces the fine detail of the grained effect of the marble.
  • the design 13 is printed on the gummed side 11 of a backing sheet of gummed paper 12 using a screen printing technique.
  • the areas of different tones or colours are built up in separate stages using different screens to build up the complete design.
  • the colours are made up of lead-bearing glass frit mixed with metallic oxides to give colour, and carried in a printing medium.
  • the glass frit is made from a mixture of lead oxide, boric acid and silica which is fused together and then quenched in water and dried.
  • the frit is ground with metallic oxide of the desired colour and then mixed with just sufficient medium to enable it to be printed.
  • the medium has to be burnt off during the heat treatment and the less medium that has to be burnt, the better the results.
  • the printing medium may be cellulose or resinous and serve to bind the colours together.
  • the coloured areas 13 are covered with an acrylic resin cover coat 14 to protect the transfer during transport and handling.
  • the transfers 10 are peeled from their backing sheets and laid on one side of the glass panel 15 so that each transfer overlaps the adjacent transfer (see Fig 2) .
  • the glass panel 15 may be up to, say, 4.5 metres x 2.5 metres in dimensions.
  • the transfers may conveniently be up to, say, 900 mm x 600 mm so that 25 or more transfers may be required to cover a single panel.
  • the overlap 16 of transfers may be 25 to 100 mm, usually 30 to 40 mm.
  • the maximum size of panel that can be used depends on the size of the furnace in which the heat treatment is performed. The size of the transfers is chosen for convenience of handling and versatility of application.
  • the transfers 10 are cut with a craft knife 17 in the region 16 of the overlap along a line 18 that follows the edges major features on the design (see Fig 3) .
  • the line may follow the boundary between areas of sharply contrasting tone. It may be helpful if the pattern of the design gradually fades towards the edge of the transfer.
  • the glass with the applied transfer are passed slowly through a furnace where the panel is heated to a temperature of approximately 450°C. At this temperature the acrylic resin cover coat 14 and the printing medium are burnt off in the oxidising atmosphere of the furnace, leaving the glass frit and metallic oxide undisturbed on the surface of the glass panel.
  • the temperature does not have to be sufficiently high to fuse the glass frit during this preliminary treatment cycle.
  • the duration of the preliminary heat treatment cycle can be typically 25 minutes to 1 hour, although in some cases the time could be less.
  • the panel 15 After being heated in the furnace, the panel 15 is allowed to cool. A coating of ceramic or vitreous enamel material 22 of suitable colour, for example white, is then applied to the same side of the glass as the transfer so as to cover the glass frit and metallic oxide layer. Preferably the ceramic or vitreous enamel layer is applied as a paint-like suspension by spraying (Fig 6) and allowed to dry.
  • the panel When the ceramic or vitreous enamel layer is dry the panel is subjected to a second heat treatment cycle which is a glass toughening cycle (Fig 7) .
  • a glass toughening cycle (Fig 7) .
  • the - S - temperature of the burners in the furnace is typically 700°-750°C and the temperature of the panel reaches 620°- 670°C.
  • the glass passes back and forth within the furnace 23 until it reaches the desired temperature.
  • the glass frit and metal oxide fuse to form areas 24 of colour that are fused to the surface of the glass.
  • the ceramic or vitreous enamel layer is baked over surface of the design to form a hard protective layer 25 which enhances the appearance of the design when viewed from the opposite side.
  • the glass panel remains in the furnace 23 for 3 minutes or less, preferably 2 to 3 minutes.
  • the treatment depends on the thickness of glass used which may typically be from 4 mm to 25 mm.
  • the panel emerges from the furnace it is blasted with cold air from jets 30 to cause rapid cooling of the surface of the glass and consequent toughening of the glass panel.
  • the panels produced by the method described above are of toughened glass suitable for use as cladding material for buildings and other application.
  • the colours are resistant to wear and fading.
  • the panels so formed may be lighter than slabs of stone used for the same purpose.
  • the surface that is outermost in use has a perfect polish because it is the untreated side of the glass.
  • a covering of ceramic or vitreous material is placed over the design in the embodiment described above, it may be omitted in some applications, for example shower doors, where it may be preferred to use transparent and semi-transparent colours for the transfer so that the finished panel permits some transmission of light.
  • the coating of ceramic or vitreous enamel is laid over the design on transfers. Alternatively the coating may be applied to the glass panel first and the decorative pattern in the form of transfers may be applied over the ceramic or vitreous enamel layer afterward.
  • the preliminary heat 20 treatment cycle involves gentle heating to 450°. It may be preferred to carry out the preliminary heating using the same furnace as for the second heat treatment cycle. For example the glass may be heated to 550 for up to 3 minutes and cooled rapidly afterwards. Such a cycle would be sufficient to fuse the glass frits onto the surface of the glass.
  • the transfer is made using a screen printing technique
  • other techniques could be employed.
  • a layer of printing medium or varnish could be applied to the gummed paper in the desired pattern and then dusted with a powder of glass frits and oxide so that the powder adheres to the areas where the printing medium has been applied. The process may be repeated with other colours of powder to build up the design.
  • the design on the transfer represent the fine detail of the finished article.
  • the design represents the grained effect of the natural stone.
  • a transfer is produced that reproduces the fine detail of that other material and a covering layer of material of a colour appropriate for the desired material is used.
  • cover coat is burnt off by pre-firing before the panel is subjected to the glass-toughening cycle
  • this pre- firing operation may be avoided by using as cover coat that can be removed mechanically, for example by peeling, after the transfer has been applied to the glass.
  • cover coat By using a material for the cover coat which is released from the rest of the transfer by subjecting it to infrared radiation or by gentle heating, the cover coat can be removed without pre-firing.
  • the transfer can then be overprinted with a layer of ceramic material to form the background colour.
  • the resulting panel can then be subjected to a single glass-toughening heat treatment cycle which fuses the glass frit of the transfer and the ceramic layer in a single operation.
  • the cover coat is removed using jets of water. After the transfer has been laid on the glass and dried, the glass frits and printing medium stick to the glass because of the gum on the backing paper. By using suitable materials for the cover coat it can then be removed by directing jets of water onto the panel. Where it is necseesy to use more than one transfer to cover a panel, the transfers should preferably be overlapped, cut in the region of the overlap and the surplus removed. For marbled effects such as described above, the cut may follow a meandering line, but for other effects such as wood veneer a staraight or uniformly curved line may be appropriate.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

L'invention concerne un procédé de fabrication de panneaux de verre décorés, notamment de panneaux de verre décorés à l'aide de dessins dans le but d'imiter de la pierre telle que du marbre. On forme des décalcomanies (10) en imprimant des dessins simulant le marbre sur un support de papier gommé à l'aide d'une encre à base de fritte de verre et d'oxydes métalliques colorés dans un milieu d'impression. On trempe dans l'eau plusieurs décalcomanies (10), on les ôte de leur support et on les place en les faisant se chevaucher sur un panneau de verre (15). On coupe ensuite ces décalcomanies dans la zone où elles se chevauchent (16) et on enlève le surplus de matériau. Après avoir fait sécher le panneau, on le passe dans un four pour brûler le milieu d'impression. On applique ensuite une couverte d'émail céramique ou vitreux (25) sur le dessin puis on soumet le panneau à un second cycle de traitement thermique dans lequel le verre se fritte et l'oxyde métallique fusionne avec le panneau de verre; la couverte est cuite sur le panneau et le verre devient du verre trempé lorsqu'on le chauffe rapidement dans un four et qu'on le refroidit ensuite.
EP95902194A 1993-12-01 1994-11-30 Procede de production de panneaux de verre decores Withdrawn EP0731758A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9324616 1993-12-01
GB939324616A GB9324616D0 (en) 1993-12-01 1993-12-01 Designs on glass
PCT/GB1994/002616 WO1995015267A1 (fr) 1993-12-01 1994-11-30 Procede de production de panneaux de verre decores

Publications (1)

Publication Number Publication Date
EP0731758A1 true EP0731758A1 (fr) 1996-09-18

Family

ID=10745939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95902194A Withdrawn EP0731758A1 (fr) 1993-12-01 1994-11-30 Procede de production de panneaux de verre decores

Country Status (6)

Country Link
EP (1) EP0731758A1 (fr)
AU (1) AU1113495A (fr)
CA (1) CA2177995A1 (fr)
GB (1) GB9324616D0 (fr)
TW (1) TW228507B (fr)
WO (1) WO1995015267A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW228507B (en) * 1993-12-01 1994-08-21 Stained Glass Systems Ltd A method for producing a decorated glass panel
IT1285486B1 (it) * 1996-10-08 1998-06-08 Axivetro S A S Di Martelli Giu Procedimento per il trattamento superficiale di una lastra di vetro e simili prodotto ottenuto mediante tale procedimento
GB9706427D0 (en) * 1997-03-27 1997-05-14 Pearson David Glass treatment process and apparatus
US6194149B1 (en) 1998-03-03 2001-02-27 Third Wave Technologies, Inc. Target-dependent reactions using structure-bridging oligonucleotides
US6214545B1 (en) 1997-05-05 2001-04-10 Third Wave Technologies, Inc Polymorphism analysis by nucleic acid structure probing
EP0983292A4 (fr) 1997-05-05 2005-05-18 Third Wave Tech Inc Reactions dependantes des cibles, utilisant des oligonucleotides de pontage de structures
US6210880B1 (en) 1997-09-19 2001-04-03 Third Wave Technologies, Inc. Polymorphism analysis by nucleic acid structure probing with structure-bridging oligonucleotides
US7101672B2 (en) 1998-05-05 2006-09-05 Third Wave Technologies, Inc. Target-dependent reactions using structure-bridging oligonucleotides
GB9805045D0 (en) * 1998-03-11 1998-05-06 Pearson David Treatment process and apparatus
EP1144790A1 (fr) 1998-12-16 2001-10-17 Bowmead Holding Inc. Panneau de construction architectural
US10309018B2 (en) * 2011-05-31 2019-06-04 United Technologies Corporation Composite article having layer with co-continuous material regions
CN108249778A (zh) * 2018-02-07 2018-07-06 中建八局装饰工程有限公司 一种双套色彩釉玻璃制作方法
CN110304835A (zh) * 2018-12-25 2019-10-08 深圳丽朴显像量子高科技有限公司 一种玻璃显示屏及其制备工艺
EP3915958A4 (fr) * 2019-01-21 2022-07-20 Tvitec System Glass. S.L. Procédé de fabrication d'un substrat en verre avec un fini de surface en relief et substrat en verre obtenu au moyen dudit procédé

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US3956558A (en) * 1972-11-03 1976-05-11 Commercial Decal, Inc. Ceramic decalcomania and method
DE3524912C1 (de) * 1985-07-12 1986-11-13 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von kratz- und abriebfesten Edelmetalldekoren
GB2232414B (en) * 1989-03-10 1992-05-13 Stained Glass Systems Ltd Method for producing coloured designs on glass
US5132165A (en) * 1990-06-19 1992-07-21 Commerical Decal, Inc. Wet printing techniques
US5256179A (en) * 1992-04-17 1993-10-26 Corning Incorporated Method of making a glass-ceramic article having an adherent colored glaze with controlled texture
TW228507B (en) * 1993-12-01 1994-08-21 Stained Glass Systems Ltd A method for producing a decorated glass panel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9515267A1 *

Also Published As

Publication number Publication date
GB9324616D0 (en) 1994-01-19
WO1995015267A1 (fr) 1995-06-08
AU1113495A (en) 1995-06-19
TW228507B (en) 1994-08-21
CA2177995A1 (fr) 1995-06-08

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