EP0346699A1 - Set of ornamental stones and process for manufacturing the same - Google Patents

Set of ornamental stones and process for manufacturing the same Download PDF

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Publication number
EP0346699A1
EP0346699A1 EP89109967A EP89109967A EP0346699A1 EP 0346699 A1 EP0346699 A1 EP 0346699A1 EP 89109967 A EP89109967 A EP 89109967A EP 89109967 A EP89109967 A EP 89109967A EP 0346699 A1 EP0346699 A1 EP 0346699A1
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EP
European Patent Office
Prior art keywords
layer
adhesive layer
gemstones
melt adhesive
hot melt
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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
EP89109967A
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German (de)
French (fr)
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EP0346699B1 (en
Inventor
Martin Pöll
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D Swarovski KG
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D Swarovski KG
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Publication date
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Priority to AT89109967T priority Critical patent/ATE80274T1/en
Publication of EP0346699A1 publication Critical patent/EP0346699A1/en
Application granted granted Critical
Publication of EP0346699B1 publication Critical patent/EP0346699B1/en
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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/04—Setting gems in jewellery; Setting-tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y10T428/2817—Heat sealable

Definitions

  • the invention relates to a gem stone composite and a method for its production.
  • a gemstone composite is already known, in which several gemstones are combined by means of a hot melt adhesive layer which comprises the setting side of the stones.
  • a disadvantage of these known stone composites is that when applied to a flat, non-indentable surface of a substrate, the hotmelt adhesive layer is only connected to the substrate surface at the lower stone tip, and therefore poor adhesion can be achieved.
  • a hot melt adhesive layer is not advantageous because the activation temperature is too high and the material to be provided with the gem stone composite is impaired. This is the case, for example, with sensitive textile materials, as well as jewelry made from centrifugal casting or plastic.
  • the invention has for its object to provide a gemstone composite that can be easily applied to a substrate without affecting the same, with sufficient bonding between the gemstone composite and substrate is guaranteed.
  • the invention is based on the knowledge that this object can be achieved in that the adhesive surface of the gem stone composite is essentially flat is trained.
  • the invention relates to a gemstone composite comprising a plurality of gemstones which carry a layer of hotmelt adhesive, which is characterized in that the gemstones have a first layer of hotmelt adhesive on their set side, including a filler layer which fills the spaces between the individual stones and underneath a second layer of hotmelt adhesive which is essentially flat and is welded to the first hot melt adhesive layer in the area of the tips of the gemstones.
  • the invention also relates to a method for producing a gemstone composite, which is characterized in that several gemstones are provided on their setting side with a first hot melt adhesive layer, a filler layer for filling the spaces between the individual gemstones and a second hot melt adhesive layer are applied, and the two hot melt adhesive layers in the area of the tips of the gemstones are welded on the frame side.
  • the gemstone composite according to the invention is characterized in that the adhesive surface formed by the second hot melt adhesive layer is essentially flat.
  • the adhesive surface formed by the second hot melt adhesive layer is essentially flat.
  • a very important advantage of the gemstone composite according to the invention is the fact that it is easily deformable and therefore easy on all types of surfaces is customizable. This is due to the fact that all layers of the composite are easily deformable or bendable.
  • An effect layer is preferably arranged between the first hot melt adhesive layer and the filler layer, which gives the spaces between the individual gemstones a desired, for example silvery, appearance.
  • the gemstone composite according to the invention brings particular advantages in those cases in which the activation of a hotmelt adhesive layer would impair the material of the substrate.
  • the adhesion to the substrate is not achieved via the hotmelt adhesive layer but rather via a self-adhesive layer or another adhesive layer that has already been applied to the gem stone composite or can be subsequently applied.
  • a self-adhesive layer is therefore arranged on the second hot melt adhesive layer.
  • the first hot-melt adhesive layer which surrounds the setting side of the gemstones like a setting, can be discontinuous, i.e. the individual gemstones are not connected by a hot-melt adhesive film, but merely carry a type of setting made of hot-melt adhesive layer. But it can also be continuous.
  • This first hot melt adhesive layer is preferably transparent.
  • the filling layer preferably consists of an easily deformable material, such as a foam, and is preferably provided with a self-adhesive layer on both sides.
  • the thickness of the filler layer preferably corresponds approximately to the height of the setting section of the gemstones.
  • the self-adhesive layer is preferably applied in the form of an intermediate layer which carries a self-adhesive layer on both sides.
  • cut glass stones preferably chatons made of crystal glass, come into consideration as gemstones.
  • the individual layers can be applied individually, but it is preferred to apply them, with the exception of the first hot melt adhesive layer, in the form of a prefabricated composite layer, which preferably consists of the effect layer, filler layer with self-adhesive layers on both sides and hot melt adhesive layer and optionally self-adhesive layer and optionally there is a covering layer.
  • the first hot melt adhesive layer in the form of a prefabricated composite layer, which preferably consists of the effect layer, filler layer with self-adhesive layers on both sides and hot melt adhesive layer and optionally self-adhesive layer and optionally there is a covering layer.
  • the arrangement of the gemstones, as is then given in the finished gemstone composite, can be chosen as desired, the stones can be arranged over the entire area with minimal distances from one another. Ornamental arrangements of any design are also possible.
  • transfer film 16 preferably consists of a plastic film with a self-adhesive layer.
  • the gemstones 1 on the transfer film 16 are shown in their position on the press table 17. Their exact location is defined using the dowel pins 15.
  • a composite film 24 is shown above the gemstones 1. As seen from the stones upwards, it consists of the following layers: An effect layer 4, a filling layer 5, a second hot melt adhesive layer 7, a self-adhesive layer 9 and a cover layer 20.
  • the pressing head 18 with cutting knives 19 is shown above the composite film 24.
  • the gemstones are preferably cut glass stones, in particular chatons made of crystal glass.
  • hot-melt adhesive layers All suitable plastics which can be activated by heat can be used for the hot-melt adhesive layers, in particular polyamides, polyester resins, epoxy resins, isocyanates and aminoplasts.
  • the thickness of the hot melt adhesive layer is usually in the range from 20 to 100 ⁇ m.
  • the first hot-melt adhesive layer 3 comprises the gemstones 1 in its mounting section 14.
  • the hot-melt adhesive layer preferably extends over the equator of the gemstones 1, so that in addition to the adhesive adhesion, a more stable connection between the gemstone 1 and the hot-melt adhesive layer 3 is provided by gripping around.
  • the hot-melt adhesive layer 3 can be discontinuous, in which case the set side 2 of the gemstones 1 is surrounded by hot-melt adhesive caps. These are shown in Figure 1.
  • the gemstones 1 can be surrounded by a continuous hotmelt adhesive layer 3, as shown in FIG. 3, a hotmelt adhesive layer also being present between the stones.
  • the hot melt adhesive layer is preferably colorless and transparent.
  • An effect layer 4 is applied to the first hot melt adhesive layer.
  • the effect layer has the purpose of giving the spaces between the gemstones 1 a preferred optical appearance in plan view, i.e. especially to cover the underlying dark or unsightly layers. Such an effect layer can be omitted if the optical appearance of the other layer is satisfactory or if this aspect is of minor importance for the desired application.
  • effect layer 4 in particular metal foils such as gold foils, aluminum foils or vapor-coated polyester foils with a metallic effect or colored plastic foils come into consideration.
  • the thickness of the effect films is in particular in the range from 5 to 30 ⁇ m.
  • the filling layer 5 preferably consists of an easily compressible material, in particular a foam.
  • Foamed moltoprene as is commercially available in the form of assembly tapes, is particularly suitable.
  • Such assembly tapes have a self-adhesive layer on both sides.
  • the use of a filler layer with double-sided self-adhesive layers is advantageous because it is then simple Way the layers to be applied can be prefabricated into a composite film. The adhesion between the filling layer and the adjacent layers is also improved.
  • the filling layer 5 serves on the one hand to bring the effect layer 4 into the correct position and, furthermore, to provide a continuous level by filling essentially the entire space 6 between the gemstones 1, so that the second hot melt adhesive layer 7 comes to lie essentially flat. This is essential since the entire arrangement of the gem stone composite is available for gluing due to the flat arrangement, and this ensures the best possible connection to substrates which are made of materials which are not very deformable.
  • the thickness of the filler layer 5 depends on the size of the gemstones 1, and the thickness should preferably correspond approximately to the height of the mounting section 14 of the gemstones 1. According to a preferred embodiment, a self-adhesive layer 9 is provided on the second hot melt adhesive layer 7.
  • the self-adhesive layer can, for example, be in the form of an intermediate layer which carries self-adhesive on both sides.
  • the self-adhesive layer can subsequently be applied to the second hot-melt adhesive layer or the substrate.
  • a cover layer 20 is preferably provided, which can be made of paper or plastic, preferably silicone-coated paper.
  • an intermediate layer it preferably consists of the same material as the filler layer 5, so preferably from a foam layer with self-adhesive layers on both sides.
  • the gem stone composites are produced in a press.
  • the composite film 24 or individual desired layers are pressed onto the gemstones 1 arranged on the press table 17 by means of the press head 18 under increased pressure, for example 2 to 3 bar overpressure.
  • the pressing process it is also preferably irradiated with ultrasound.
  • the ultrasound activates the polymers of the hotmelt adhesive layers, which are welded together. The welding occurs essentially only in the area of the tip 8 of the gemstones 1.
  • the finished gemstone composite 22 on the transfer film 16 is shown in FIG.
  • the gem stone composite was cut off by means of the cutting knives 19, which, however, did not cut through the transfer film 16, but were guided to a stop. In this way, a large number of gemstone composites can be arranged on a transfer film for further use.
  • the compressed air supply lines 21 serve to eject the gem stone assembly 22 from the press head 18.
  • FIG. 3 the production of a gemstone composite is shown in a manner similar to that in FIG. 4, but the gemstones 1 are connected and held together by a continuous hotmelt adhesive layer 3.
  • the hot melt adhesive layer 3 comprises the socket Section 14 of the gemstones 1.
  • the gemstones sit on the press table 17, which also carries the cutting knife 19.
  • the layers are pressed onto the gemstones 1 in the form of a composite film 24 by means of a pressing head 18.
  • the finished gemstone composite is shown in FIG. 4, where it can again be seen that the cutting knives 19 do not cut through the cover layer 20, so that several gemstone composites can remain on a film, as shown in FIG. 5, where a fully illustrated gemstone composite 22 and only one partially shown gemstone composite 22 'are arranged on a common cover layer 20.
  • FIG. 6 shows an embodiment in which the gemstones 1 are arranged in recesses 23 in a press table 17 designed as a perforated plate.
  • the latter also carries the cutting knives 19.
  • the composite film 24 is pressed onto the gemstones 1 provided with the hot-melt adhesive layer 3 by means of a pressing head 18, which is also designed as a sonotrode for the ultrasound.
  • FIG. 7 shows an embodiment in which the composite film 24 is placed on a press table 17.
  • the gemstones 1 provided with the hot-melt adhesive layer 3 are placed on a transfer film 16 in the desired arrangement. Then is pressed by means of press head 18 with cutting knives 19 and the foils pressed with the stones are cut off with the cutting knives 19 up to the covering layer 20.
  • the gemstone composite according to the invention is suitable for a wide variety of uses, such as appli adorn textiles, leather or for costume jewelry.
  • the gem stone composite is particularly suitable for jewelry production in that embodiment with an intermediate layer 9 with a self-adhesive coating.
  • only the cover layer 20 has to be pulled off, and the gem stone composite is used at a suitable point on the costume jewelry, in particular in the provided recesses, where it adheres sufficiently by means of the self-adhesive layer provided on the intermediate layer 9.
  • Gemstone composites designed in this way can also be bent flat, i.e. For example, cylindrical surfaces can be formed.
  • temperature-sensitive materials such as plastic or centrifugal casting, can be provided in a simple manner with the gemstones according to the invention.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention relates to a gem compound comprising a plurality of gems bearing a melt adhesive layer, wherein the gems bear on their setting side a first melt adhesive layer, therebelow a filling layer which fills the spaces between the individual gems, and therebelow a second melt adhesive layer which is substantially flat and welded to the first melt adhesive layer in the area of the tips of the gems.

Description

Die Erfindung betrifft einen Schmucksteinverbund und ein Verfahren zu dessen Herstellung.The invention relates to a gem stone composite and a method for its production.

Es ist bereits ein Schmucksteinverbund bekannt, bei dem mehrere Schmucksteine mittels einer Schmelzklebstoff­schicht zusammengefaßt werden, die die Setzseite der Steine umfaßt. Nachteilig ist bei diesen bekannten Stein­verbunden, daß bei Aufbringen auf eine plane, nicht ein­drückbare Oberfläche eines Substrats, die Schmelzkleb­stoffschicht nur an der unteren Steinspitze mit der Substratoberfläche in Verbindung steht und somit nur eine schlechte Verklebung erreicht werden kann.A gemstone composite is already known, in which several gemstones are combined by means of a hot melt adhesive layer which comprises the setting side of the stones. A disadvantage of these known stone composites is that when applied to a flat, non-indentable surface of a substrate, the hotmelt adhesive layer is only connected to the substrate surface at the lower stone tip, and therefore poor adhesion can be achieved.

Für manche Anwendungszwecke ist eine Schmelzklebstoff­schicht nicht vorteilhaft, da die Aktivierungstemperatur zu hoch ist, und das mit dem Schmucksteinverbund zu ver­sehene Material beeinträchtigt wird. Dies ist beispiels­weise bei empfindlichen Textilmaterialien, sowie Schmuck aus Schleuderguß oder Kunststoff, der Fall.For some applications, a hot melt adhesive layer is not advantageous because the activation temperature is too high and the material to be provided with the gem stone composite is impaired. This is the case, for example, with sensitive textile materials, as well as jewelry made from centrifugal casting or plastic.

Der Erfindung liegt die Aufgabe zugrunde, einen Schmuck­steinverbund zu schaffen, der auf einfache Weise auf ein Substrat ohne Beeinträchtigung desselben aufgebracht wer­den kann, wobei eine ausreichende Verklebung zwischen Schmucksteinverbund und Substrat gewährleistet ist.The invention has for its object to provide a gemstone composite that can be easily applied to a substrate without affecting the same, with sufficient bonding between the gemstone composite and substrate is guaranteed.

Der Erfindung liegt die Erkenntnis zugrunde, daß diese Aufgabe dadurch gelöst werden kann, daß die Klebefläche des Schmucksteinverbundes im wesentlichen plan ausgebildet wird.The invention is based on the knowledge that this object can be achieved in that the adhesive surface of the gem stone composite is essentially flat is trained.

Gegenstand der Erfindung ist ein Schmucksteinverbund aus mehreren Schmucksteinen, die eine Schmelzklebstoffschicht tragen, der dadurch gekennzeichnet ist, daß die Schmuck­steine auf ihrer Setzseite eine erste Schmelzklebstoff­schicht tragen, darunter eine Füllschicht, die die Zwi­schenräume zwischen den einzelnen Steinen ausfüllt und darunter eine zweite Schmelzklebstoffschicht, die im we­sentlichen plan ist und mit der ersten Schmelzklebstoff­schicht im Bereich der Spitzen der Schmucksteine ver­schweißt ist, angeordnet sind.The invention relates to a gemstone composite comprising a plurality of gemstones which carry a layer of hotmelt adhesive, which is characterized in that the gemstones have a first layer of hotmelt adhesive on their set side, including a filler layer which fills the spaces between the individual stones and underneath a second layer of hotmelt adhesive which is essentially flat and is welded to the first hot melt adhesive layer in the area of the tips of the gemstones.

Gegenstand der Erfindung ist ferner ein Verfahren zur Herstellung eines Schmucksteinverbundes, der dadurch ge­kennzeichnet ist, daß mehrere Schmucksteine auf ihrer Fassungsseite mit einer ersten Schmelzklebstoffschicht versehen werden, darauf eine Füllschicht zum Füllen der Zwischenräume zwischen den einzelnen Schmucksteinen und eine zweite Schmelzklebstoffschicht aufgebracht werden, und die beiden Schmelzklebstoffschichten im Bereich der Spitzen der Schmucksteine auf der Fassungsseite ver­schweißt werden.The invention also relates to a method for producing a gemstone composite, which is characterized in that several gemstones are provided on their setting side with a first hot melt adhesive layer, a filler layer for filling the spaces between the individual gemstones and a second hot melt adhesive layer are applied, and the two hot melt adhesive layers in the area of the tips of the gemstones are welded on the frame side.

Der erfindungsgemäße Schmucksteinverbund zeichnet sich dadurch aus, daß die durch die zweite Schmelzklebstoff­schicht gebildete Klebefläche im wesentlichen plan ist. Somit kann bei Auflegen des Schmucksteinverbundes auf ein Substrat und Aktivierung der Schmelzklebstoffschicht, weil eine Verklebung über die ganze Fläche erfolgt, eine optimale Klebefestigkeit erzielt werden.The gemstone composite according to the invention is characterized in that the adhesive surface formed by the second hot melt adhesive layer is essentially flat. Thus, when the gem stone composite is placed on a substrate and the hot-melt adhesive layer is activated, because adhesive is applied over the entire surface, optimum adhesive strength can be achieved.

Ein ganz wesentlicher Vorteil des erfindungsgemäßen Schmucksteinverbundes ist die Tatsache, daß dieser leicht verformbar ist und somit allen Arten von Flächen leicht anpaßbar ist. Dies beruht darauf, daß sämtliche Schichten des Verbundes leicht verformbar bzw. biegbar sind.A very important advantage of the gemstone composite according to the invention is the fact that it is easily deformable and therefore easy on all types of surfaces is customizable. This is due to the fact that all layers of the composite are easily deformable or bendable.

Vorzugsweise wird zwischen der ersten Schmelzklebstoff­schicht und der Füllschicht eine Effektschicht angeordnet, die den Zwischenräumen zwischen den einzelnen Schmucksteinen ein gewünschtes, beispielsweise silbern glänzendes, Aussehen verleiht.An effect layer is preferably arranged between the first hot melt adhesive layer and the filler layer, which gives the spaces between the individual gemstones a desired, for example silvery, appearance.

Besondere Vorteile bringt der erfindungsgemäße Schmuck­steinverbund in jenen Fällen, bei denen die Aktivierung einer Schmelzklebstoffschicht das Material des Substrats beeinträchtigen würde. In einem solchen Fall wird die Haftung mit dem Substrat nicht über die Schmelzklebstoff­schicht sondern über eine Selbstklebeschicht oder andere bereits auf den Schmucksteinverbund aufgebrachte oder nachträglich aufbringbare Klebstoffschicht erzielt. Gemäß einer bevorzugten Ausführungsform wird deshalb auf der zweiten Schmelzklebstoffschicht eine Selbstklebeschicht angeordnet.The gemstone composite according to the invention brings particular advantages in those cases in which the activation of a hotmelt adhesive layer would impair the material of the substrate. In such a case, the adhesion to the substrate is not achieved via the hotmelt adhesive layer but rather via a self-adhesive layer or another adhesive layer that has already been applied to the gem stone composite or can be subsequently applied. According to a preferred embodiment, a self-adhesive layer is therefore arranged on the second hot melt adhesive layer.

Die erste Schmelzklebstoffschicht, die die Setzseite der Schmucksteine wie eine Fassung umgibt, kann diskontinu­ierlich sein, d.h.die einzelnen Schmucksteine sind nicht durch eine Schmelzklebstoffolie verbunden, sondern tragen lediglich eine Art Fassung aus Schmelzklebstoffschicht. Sie kann aber auch kontinuierlich sein. Vorzugsweise ist diese erste Schmelzklebstoffschicht transparent.The first hot-melt adhesive layer, which surrounds the setting side of the gemstones like a setting, can be discontinuous, i.e. the individual gemstones are not connected by a hot-melt adhesive film, but merely carry a type of setting made of hot-melt adhesive layer. But it can also be continuous. This first hot melt adhesive layer is preferably transparent.

Die Füllschicht besteht vorzugsweise aus einem leicht deformierbaren Material,wie einen Schaumstoff, und ist vorzugsweise auf beiden Seiten mit einer Selbstklebe­schicht versehen. Die Dicke der Füllschicht entspricht vorzugsweise etwa der Höhe des Fassungsabschnittes der Schmucksteine.The filling layer preferably consists of an easily deformable material, such as a foam, and is preferably provided with a self-adhesive layer on both sides. The thickness of the filler layer preferably corresponds approximately to the height of the setting section of the gemstones.

Als Selbstklebeschicht kommen alle bekannten Selbstklebe­schichten in Frage. Vorzugsweise wird die Selbstklebe­schicht in Form einer Zwischenschicht,die auf beiden Seiten eine Selbstklebeschicht trägt, aufgebracht.All known self-adhesive layers can be used as self-adhesive layers. The self-adhesive layer is preferably applied in the form of an intermediate layer which carries a self-adhesive layer on both sides.

Als Schmucksteine kommen insbesondere geschliffene Glas­steine, vorzugsweise Chatons aus Kristallglas, in Be­tracht.In particular, cut glass stones, preferably chatons made of crystal glass, come into consideration as gemstones.

Bei der Herstellung des Schmucksteinverbundes können die einzelnen Schichten einzeln aufgebracht werden, es wird jedoch bevorzugt, diese, mit Ausnahme der ersten Schmelz­klebstoffschicht, in Form einer vorgefertigten Verbund­schicht aufzubringen, die vorzugsweise aus Effktschicht, Füllschicht mit Selbstklebeschichten auf beiden Seiten und Schmelzklebstoffschicht und gegebenenfalls Selbstkle­beschicht und gegebenenfalls Abdeckschicht besteht.In the production of the gem stone composite, the individual layers can be applied individually, but it is preferred to apply them, with the exception of the first hot melt adhesive layer, in the form of a prefabricated composite layer, which preferably consists of the effect layer, filler layer with self-adhesive layers on both sides and hot melt adhesive layer and optionally self-adhesive layer and optionally there is a covering layer.

Die Erfindung wird nachstehend anhand der Zeichnungen, die beispielhafte Ausführungsformen zeigen, näher erläu­tert. Es zeigen:

  • Figur 1 eine schematische Ansicht von Schmucksteinen und einer mehrschichtigen Verbundfolie in einem Preß­werkzeug vor dem Verpressen zu einem Schmuck­steinverbund;
  • Figur 2 eine schematische Ansicht eines Schmucksteinver­bundes nach dem Verpressen in einem Preßwerkzeug;
  • Figur 3 eine schematische Ansicht von Schmucksteinen und einer Verbundfolie in einem Preßwerkzeug vor dem Verpressen zu einem Schmucksteinverbund;
  • Figur 4 eine schematische Ansicht eines Schmuckstein­verbundes nach dem Verpressen in einem Preßwerk­zeug;
  • Figur 5 eine schematische Ansicht eines Schmuckstein­verbundes;
  • Figur 6 eine schematische Ansicht von Schmucksteinen und einer Verbundfolie in einem Preßwerkzeug vor dem Verpressen zu einem Schmucksteinverbund; und
  • Figur 7 eine schematisch Ansicht von Schmucksteinen und einer Verbundfolie in einem Preßwerkzeug vor dem Verpressen zu einem Schmucksteinverbund.
The invention is explained in more detail below with reference to the drawings, which show exemplary embodiments. Show it:
  • Figure 1 is a schematic view of gemstones and a multilayer composite film in a pressing tool before pressing to a gemstone composite;
  • Figure 2 is a schematic view of a gem stone composite after pressing in a pressing tool;
  • FIG. 3 shows a schematic view of gemstones and a composite film in a pressing tool before pressing to form a gemstone composite;
  • Figure 4 is a schematic view of a gemstone composite after pressing in a pressing tool;
  • Figure 5 is a schematic view of a gem stone composite;
  • FIG. 6 shows a schematic view of gemstones and a composite film in a pressing tool before pressing to form a gemstone composite; and
  • Figure 7 is a schematic view of gemstones and a composite film in a pressing tool before pressing to a gemstone composite.

In Figur 1 ist gezeigt, daß mehrere Schmucksteine 1 in gewählter Anordnung auf einer Transferfolie 16 vorliegen.In Figure 1 it is shown that several gemstones 1 are present in a selected arrangement on a transfer film 16.

Die Anordnung der Schmucksteine, wie sie dann im fertigen Schmucksteinverbund gegeben ist, kann beliebig gewählt werden, die Steine können vollflächig mit Minimalabstän­den voneinander angeordnet wreden. Auch ornamentale An­ordnungen beliebiger Ausgestaltung kommen in Betracht.The arrangement of the gemstones, as is then given in the finished gemstone composite, can be chosen as desired, the stones can be arranged over the entire area with minimal distances from one another. Ornamental arrangements of any design are also possible.

Als Transferfolie 16 kommen alle geeigneten Systeme in Betracht. Die Transferfolie 16 besteht vorzugsweis aus einer Kunststoffolie mit Selbstklebeschicht.All suitable systems can be considered as transfer film 16. The transfer film 16 preferably consists of a plastic film with a self-adhesive layer.

Die Schmucksteine 1 auf der Transferfolie 16 sind in ih­rer Lage auf dem Preßtisch 17 gezeigt. Ihre genaue Lage wird mit Hilfe der Paßstifte 15 definiert.The gemstones 1 on the transfer film 16 are shown in their position on the press table 17. Their exact location is defined using the dowel pins 15.

Oberhalb der Schmucksteine 1 ist eine Verbundfolie 24 ge­zeigt. Diese besteht, in Richtung von den Steinen nach oben gesehen, aus folgenden Schichten: Einer Effekt­ schicht 4, einer Füllschicht 5, einer zweiten Schmelz­klebstoffschicht 7, einer Selbstklebeschicht 9 und einer Abdeckschicht 20.A composite film 24 is shown above the gemstones 1. As seen from the stones upwards, it consists of the following layers: An effect layer 4, a filling layer 5, a second hot melt adhesive layer 7, a self-adhesive layer 9 and a cover layer 20.

Oberhalb der Verbundfolie 24 ist der Preßkopf 18 mit Schneidmessern 19 gezeigt.The pressing head 18 with cutting knives 19 is shown above the composite film 24.

Die Schmucksteine sind vorzugsweise geschliffene Glas­steine, insbesondere Chatons aus Kristallglas.The gemstones are preferably cut glass stones, in particular chatons made of crystal glass.

Für die Schmelzklebstoffschichten können alle geeigneten, durch Wärme aktivierbaren Kunststoffe verwendet werden, insbesondere Polyamide, Polyesterharze, Epoxidharze, Isocyanate und Aminoplaste. Die Dicke der Schmelzkleb­stoffschicht liegt üblicherweise im Bereich von 20 bis 100 µm.All suitable plastics which can be activated by heat can be used for the hot-melt adhesive layers, in particular polyamides, polyester resins, epoxy resins, isocyanates and aminoplasts. The thickness of the hot melt adhesive layer is usually in the range from 20 to 100 μm.

Die erste Schmelzklebstoffschicht 3 umfaßt die Schmuck­steine 1 in ihrem Fassungsabschnitt 14. Vorzugsweise reicht die Schmelzklebstoffschicht über den Äquator der Schmucksteine 1, sodaß zusätzlich zur Klebehaftung eine stabilere Verbindung zwischen Schmuckstein 1 und Schmelz­klebstoffschicht 3 durch Umgreifen gegeben ist. Die Schmelzklebstoffschicht 3 kann diskontinuierlich ausge­bildet sein, wobei dann die Setzseite 2 der Schmucksteine 1 mit Schmelzklebstoffhütchen umgeben ist. Diese sind in Figur 1 gezeigt. Alternativ können die Schmucksteine 1 von einer kontinuierlichen Schmelzklebstoffschicht 3 um­faßt werden, wie dies in Figur 3 gezeigt ist, wobei auch zwischen den Steinen eine Schmelzklebstoffschicht vor­liegt.The first hot-melt adhesive layer 3 comprises the gemstones 1 in its mounting section 14. The hot-melt adhesive layer preferably extends over the equator of the gemstones 1, so that in addition to the adhesive adhesion, a more stable connection between the gemstone 1 and the hot-melt adhesive layer 3 is provided by gripping around. The hot-melt adhesive layer 3 can be discontinuous, in which case the set side 2 of the gemstones 1 is surrounded by hot-melt adhesive caps. These are shown in Figure 1. Alternatively, the gemstones 1 can be surrounded by a continuous hotmelt adhesive layer 3, as shown in FIG. 3, a hotmelt adhesive layer also being present between the stones.

Die Schmelzklebstoffschicht ist vorzugsweise farblos und transparent.The hot melt adhesive layer is preferably colorless and transparent.

Auf die erste Schmelzklebstoffschicht wird eine Effktschicht 4 aufgebracht. Die Effektschicht hat den Zweck, den Zwischenräumen zwischen den Schmucksteinen 1 in Draufsicht eine bevorzugte optische Erscheinung zu ge­ben, d.h. insbesondere die darunterliegenden dunklen, bzw. unansehnlichen Schichten abzudecken. Eine solche Effektschicht kann entfallen, wenn das optische Aussehen der anderen Schicht zufriedenstellend ist oder bei dem gewünschten Anwendungszweck dieser Aspekt von untergeord­neter Bedutung ist.An effect layer 4 is applied to the first hot melt adhesive layer. The effect layer has the purpose of giving the spaces between the gemstones 1 a preferred optical appearance in plan view, i.e. especially to cover the underlying dark or unsightly layers. Such an effect layer can be omitted if the optical appearance of the other layer is satisfactory or if this aspect is of minor importance for the desired application.

Als Effektschicht 4 kommen insbesondere Metallfolien, wie Goldfolien, Aluminiumfolien oder bedampfte Polyester­folien mit Metalleffekt oder farbige Kunststoffolien in Betracht.As the effect layer 4, in particular metal foils such as gold foils, aluminum foils or vapor-coated polyester foils with a metallic effect or colored plastic foils come into consideration.

Die Dicke der Effektfolien liegt insbesondere im Bereich von 5 bis 30 µm.The thickness of the effect films is in particular in the range from 5 to 30 μm.

Diese geringen Dicken gewährleisten, daß die Folie bei der Herstellung des Schmucksteinverbundes im Bereich der Spitzen 8 der Schmucksteine 1 reißt und im fertigen Schmucksteinverbund im wesentlichen nur im Bereich zwi­schen den Schmucksteinen 1 und daran angrenzend an den Schmucksteinen vorliegt. In diese Position wird die Ef­fektfolien 4 bei der Herstellung des Schmuckstein­verbundes durch die Füllschicht 5 gedrückt.These small thicknesses ensure that the film breaks in the area of the tips 8 of the gemstones 1 during the manufacture of the gemstone composite and is present in the finished gemstone composite essentially only in the area between the gemstones 1 and adjacent to the gemstones. The effect foils 4 are pressed into this position by the filler layer 5 during the production of the gem stone composite.

Die Füllschicht 5 besteht vorzugsweise aus einem leicht komprimierbaren Material, insbesondere einem Schaumstoff. Besonders geeignet ist geschäumtes Moltopren, wie es in Form von Montagebändern im Handel ist. Solche Montagebän­der weisen beidseitig eine Selbstklebstoffschicht auf. Die Verwendung einer Füllschicht mit beidseitigen Selbst­klebeschichten ist vorteilhaft, da dann auf einfache Weise die aufzubringenden Schichten zu einer Verbundfolie vorgefertigt werden könne. Auch wird die Haftung zwi­schen der Füllschicht und den daran angrenzenden Schich­ten verbessert.The filling layer 5 preferably consists of an easily compressible material, in particular a foam. Foamed moltoprene, as is commercially available in the form of assembly tapes, is particularly suitable. Such assembly tapes have a self-adhesive layer on both sides. The use of a filler layer with double-sided self-adhesive layers is advantageous because it is then simple Way the layers to be applied can be prefabricated into a composite film. The adhesion between the filling layer and the adjacent layers is also improved.

Die Füllschicht 5 dient zum einen dazu, die Effektschicht 4 in richtige Position zu bringen, und ferner dazu durch Ausfüllen im wesentlichen des gesamten Zwischenraums 6 zwischen den Schmucksteinen 1 eine durchgehende Ebene vorzusehen, sodaß die zweite Schmelzklebstoffschicht 7 im wesentlichen plan zu liegen kommt. Dies ist wesentlich, da durch die plane Anordnung die gesamte Fläche des Schmucksteinverbundes zur Verklebung zur Verfügung steht und dadurch eine bestmögliche Verbindung mit Substraten gewährleistet ist, die aus Materialien bestehen, die we­nig deformierbar sind.The filling layer 5 serves on the one hand to bring the effect layer 4 into the correct position and, furthermore, to provide a continuous level by filling essentially the entire space 6 between the gemstones 1, so that the second hot melt adhesive layer 7 comes to lie essentially flat. This is essential since the entire arrangement of the gem stone composite is available for gluing due to the flat arrangement, and this ensures the best possible connection to substrates which are made of materials which are not very deformable.

Die Dicke der Füllschicht 5 richtet sich nach der Größe der Schmucksteine 1, und zwar soll die Dicke vorzugsweise in etwa der Höhe des Fassungsabschnitts 14 der Schmuck­steine 1 entsprechen. Gemäß einer bevorzugten Ausfüh­rungsform ist auf der zweiten Schmelzklebstoffschicht 7 eine Selbstklebeschicht 9 vorgesehen.The thickness of the filler layer 5 depends on the size of the gemstones 1, and the thickness should preferably correspond approximately to the height of the mounting section 14 of the gemstones 1. According to a preferred embodiment, a self-adhesive layer 9 is provided on the second hot melt adhesive layer 7.

Die Selbstklebeschicht kann beispielsweise in Form einer Zwischenschicht vorliegen, die beidseitig Selbstklebstoff trägt. Die Selbstklebstoffschicht kann nachträglich auf die zweite Schmelzklebstoffschicht oder das Substrat auf­gebracht werden. Bei Vorliegen einer Selbstklebeschicht wird vorzugsweise eine Abdeckschicht 20 vorgesehen, die aus Papier oder Kunststoff, vorzugsweise silikonbe­schichtetem Papier, bestehen kann.The self-adhesive layer can, for example, be in the form of an intermediate layer which carries self-adhesive on both sides. The self-adhesive layer can subsequently be applied to the second hot-melt adhesive layer or the substrate. If a self-adhesive layer is present, a cover layer 20 is preferably provided, which can be made of paper or plastic, preferably silicone-coated paper.

Bei Verwendung einer Zwischenschicht besteht diese vor­zugsweise aus dem gleichen Material wie die Füllschicht 5, also vorzugsweise aus einer Schaumstoffschicht mit Selbstklebeschichten auf beiden Seiten.If an intermediate layer is used, it preferably consists of the same material as the filler layer 5, so preferably from a foam layer with self-adhesive layers on both sides.

Gemäß einer bevorzugten Ausführungsform werden die Schmucksteinverbunde in einer Presse hergestellt. Dabei wird unter erhöhtem Druck, beispielsweise 2 bis 3 bar Überdruck, die Verbundfolie 24 oder einzelne gewünschte Schichten, auf die auf dem Preßtisch 17 angeordneten Schmucksteine 1 mittels dem Preßkopf 18 gepreßt.According to a preferred embodiment, the gem stone composites are produced in a press. The composite film 24 or individual desired layers are pressed onto the gemstones 1 arranged on the press table 17 by means of the press head 18 under increased pressure, for example 2 to 3 bar overpressure.

Während des Verpreßvorganges wird außerdem vorzugsweise mit Ultraschall bestrahlt. Der Ultraschall bewirkt eine Aktivierung der Polymerisate der Schmelzklebstoffschich­ten, die miteinander verschweißt werden. Das Verschweißen tritt im wesentlichen nur im Bereich der Spitze 8 der Schmucksteine 1 ein. Durch die Verbindung der ersten Schmelzklebstoffschicht 3 mit der zweiten Schmelzkleb­stoffschicht 7 wird ein stabiler Schmucksteinverbund mit fester Haftung der Schmucksteine 1 darin erhalten.During the pressing process, it is also preferably irradiated with ultrasound. The ultrasound activates the polymers of the hotmelt adhesive layers, which are welded together. The welding occurs essentially only in the area of the tip 8 of the gemstones 1. By connecting the first hot-melt adhesive layer 3 with the second hot-melt adhesive layer 7, a stable gem stone composite with firm adhesion of the gem stones 1 is obtained therein.

In Figur 2 ist der fertige Schmucksteinverbund 22 auf der Transferfolie 16 gezeigt. Der Schmucksteinverbund wurde mittels der Schneidmesser 19 abgeschnitten, die jedoch nicht die Transferfolie 16 durchschnitten haben, sondern auf Anschlag geführt wurden. Auf diese Weise können eine Vielzahl von Schmucksteinverbunden auf einer Transfer­folie zur weiteren Verwendung angeordnet werden. Die Preßluftzuführungen 21 dienen zum Ausstoßen des Schmuck­steinverbundes 22 aus dem Preßkopf 18.The finished gemstone composite 22 on the transfer film 16 is shown in FIG. The gem stone composite was cut off by means of the cutting knives 19, which, however, did not cut through the transfer film 16, but were guided to a stop. In this way, a large number of gemstone composites can be arranged on a transfer film for further use. The compressed air supply lines 21 serve to eject the gem stone assembly 22 from the press head 18.

In Figur 3 ist in ähnlicher Weise wie in Figur 4 die Her­stellung eines Schmucksteinverbundes gezeigt, wobei je­doch die Schmucksteine 1 über eine durchgehende Schmelz­klebstoffschicht 3 miteinander verbunden und gehalten sind. Die Schmelzklebstoffschicht 3 umfaßt den Fassungs­ abschnitt 14 der Schmucksteine 1. Die Schmucksteine sit­zen auf dem Preßtisch 17, der auch die Schneidmesser 19 trägt.In FIG. 3, the production of a gemstone composite is shown in a manner similar to that in FIG. 4, but the gemstones 1 are connected and held together by a continuous hotmelt adhesive layer 3. The hot melt adhesive layer 3 comprises the socket Section 14 of the gemstones 1. The gemstones sit on the press table 17, which also carries the cutting knife 19.

Die Schichten werden in Form einer Verbundfolie 24 mit­tels Preßkopf 18 auf die Schmucksteine 1 aufgepreßt.The layers are pressed onto the gemstones 1 in the form of a composite film 24 by means of a pressing head 18.

Der fertige Schmucksteinverbund ist in Figur 4 gezeigt, wo wiederum erkenntlich ist, daß die Schneidmesser 19 die Abdeckschicht 20 nicht durchschneiden, damit mehrere Schmucksteinverbunde auf einer Folie verbleiben können, wie dies in Figur 5 gezeigt ist, wo ein ganz dargestell­ter Schmucksteinverbund 22 und ein nur teilweise darge­stellter Schmucksteinverbund 22′ auf einer gemeinsamen Abdeckschicht 20 angeordnet sind.The finished gemstone composite is shown in FIG. 4, where it can again be seen that the cutting knives 19 do not cut through the cover layer 20, so that several gemstone composites can remain on a film, as shown in FIG. 5, where a fully illustrated gemstone composite 22 and only one partially shown gemstone composite 22 'are arranged on a common cover layer 20.

In Figur 6 ist eine Ausführungsform gezeigt, bei der die Schmucksteine 1 in Ausnehmungen 23 in einem als Loch­platte ausgebildeten Preßtisch 17 angeordnet sind. Dieser trägt auch die Schneidmesser 19. Die Verbundfolie 24 wird mittels Preßkopf 18, der auch als Sonotrode für den Ultraschall ausgebildet ist, auf die mit Schmelzkleb­stoffschicht 3 versehenen Schmucksteine 1 gepreßt.FIG. 6 shows an embodiment in which the gemstones 1 are arranged in recesses 23 in a press table 17 designed as a perforated plate. The latter also carries the cutting knives 19. The composite film 24 is pressed onto the gemstones 1 provided with the hot-melt adhesive layer 3 by means of a pressing head 18, which is also designed as a sonotrode for the ultrasound.

In Figur 7 ist eine Ausführungsform gezeigt, bei der auf einem Preßtisch 17 die Verbundfolie 24 aufgelegt wird. Darüber werden die mit Schmelzklebstoffschicht 3 versehe­nen Schmucksteine 1 in gewünschter Anordnung auf einer Transferfolie 16 aufgelegt. Danach wird mittels Preßkopf 18 mit Schneidmessern 19 gepreßt und die mit den Steinen verpreßten Folien mit den Schneidmessern 19 bis zur Abdeckschicht 20 abgeschnitten.FIG. 7 shows an embodiment in which the composite film 24 is placed on a press table 17. The gemstones 1 provided with the hot-melt adhesive layer 3 are placed on a transfer film 16 in the desired arrangement. Then is pressed by means of press head 18 with cutting knives 19 and the foils pressed with the stones are cut off with the cutting knives 19 up to the covering layer 20.

Der erfindungsgemäße Schmucksteinverbund eignet sich für die verschiedensten Verwendungszwecke, wie zum Appli­ zieren auf Textilien, Leder oder für Modeschmuck.The gemstone composite according to the invention is suitable for a wide variety of uses, such as appli adorn textiles, leather or for costume jewelry.

Der Schmucksteinverbund ist besonders zur Schmuckherstel­lung in jener Ausführungsform mit Zwischenschicht 9 mit selbstklebender Beschichtung geeignet. Bei diesen Ausfüh­rungsformen muß lediglich die Abdeckschicht 20 abgezogen werden, und der Schmucksteinverbund wird an geeigneter Stelle am Modeschmuck, insbesondere in vorgesehene Ver­tiefungen, eingesetzt, wo er mittels der auf der Zwi­schenschicht 9 vorgesehenen selbstklebenden Schicht aus­reichend haftet.The gem stone composite is particularly suitable for jewelry production in that embodiment with an intermediate layer 9 with a self-adhesive coating. In these embodiments, only the cover layer 20 has to be pulled off, and the gem stone composite is used at a suitable point on the costume jewelry, in particular in the provided recesses, where it adheres sufficiently by means of the self-adhesive layer provided on the intermediate layer 9.

So gestaltete Schmucksteinverbunde sind plan aber auch krümmbar, d.h. zum Beispiel zylindrischen Flächen anform­bar.Gemstone composites designed in this way can also be bent flat, i.e. For example, cylindrical surfaces can be formed.

Da bei Selbstklebeschichten eine Erwärmung nicht erfor­derlich ist, können temperaturempfindliche Materialien, wie Kunststoff oder Schleuderguß, auf einfache Weise mit den erfindungsgemäßen Schmucksteinverbunden versehen wer­den.Since heating is not required in the case of self-adhesive layers, temperature-sensitive materials, such as plastic or centrifugal casting, can be provided in a simple manner with the gemstones according to the invention.

Claims (10)

1. Schmucksteinverbund aus mehreren Schmucksteinen, die eine Schmelzklebstoffschicht tragen,
dadurch gekennzeichnet, daß die Schmucksteine (1) auf ihrer Setzseite (2) eine erste Schmelzklebstoffschicht (3) tragen, darunter eine Füll­schicht (5), die die Zwischenräume (6) zwischen den ein­zelnen Schmucksteinen (1) ausfüllt, und darunter eine zweite Schmelzklebstoffschicht (7), die im wesentlichen plan ist und mit der ersten Schmelzklebstoffschicht (3) im Bereich der Spitzen (8) der Schmucksteine (1) ver­schweißt ist, angeordnet sind.1. Gemstone composite of several gemstones that carry a layer of hot melt adhesive,
characterized in that the gemstones (1) have a first hotmelt adhesive layer (3) on their set side (2), including a filler layer (5) which fills the spaces (6) between the individual gemstones (1) and a second hotmelt adhesive layer underneath (7), which is essentially flat and is welded to the first hot melt adhesive layer (3) in the region of the tips (8) of the gemstones (1). 2. Schmucksteinverbund nach Anspruch 1,
dadurch gekennzeichnet, daß zwischen der ersten Schmelzklebstoffschicht (3) und der Füllschicht (5) eine Effektschicht (4) angeordnet ist.2. gemstone composite according to claim 1,
characterized in that an effect layer (4) is arranged between the first hot melt adhesive layer (3) and the filler layer (5). 3. Schmucksteinverbund nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß unter der zweiten Schmelzklebstoffschicht (7) eine Selbstklebeschicht (9) angeordnet ist.3. gemstone composite according to claim 1 or 2,
characterized in that a self-adhesive layer (9) is arranged under the second hot melt adhesive layer (7). 4. Schmucksteinverbund nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Schmucksteine (1) geschliffene Glassteine sind.4. gemstone composite according to one of claims 1 to 3,
characterized in that the gemstones (1) are ground glass stones. 5. Schmucksteinverbund nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß die erste Schmelzklebstoffschicht (3) diskontinuierlich ist.5. gemstone composite according to one of claims 1 to 4,
characterized in that the first hot melt adhesive layer (3) is discontinuous. 6. Schmucksteinverbund nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Füllschicht (5) auf beiden Seiten Selbstklebeschichten (12,13) aufweist.6. gemstone composite according to one of claims 1 to 6,
characterized in that the filling layer (5) has self-adhesive layers (12, 13) on both sides. 7. Schmucksteinverbund nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Dicke der Füllschicht (5) in etwa der Höhe des Fas­sungsabschnitts (14) der Schmucksteine (1) entspricht.7. gemstone composite according to one of claims 1 to 6,
characterized in that the thickness of the filling layer (5) corresponds approximately to the height of the socket section (14) of the gemstones (1). 8. Verfahren zur Herstellung eines Schmuckstein­verbundes,
dadurch gekennzeichnet, daß mehrere Schmucksteine auf ihrer Fassungsseite mit einer ersten Schmelzklebstoffschicht versehen werden, darauf eine Füllschicht zum Füllen der Zwischenräume zwischen den einzelnen Schmucksteinen und eine zweite Schmelzkleb­stoffschicht aufgebracht werden, und die beiden Schmelz­klebstoffschichten im Bereich der Spitzen der Schmuck­steine auf der Fassungsseite verschweißt werden.8. Process for the production of a gem stone composite,
characterized in that several gemstones are provided on their setting side with a first hot melt adhesive layer, a filler layer for filling the spaces between the individual gemstones and a second hot melt adhesive layer are applied, and the two hot melt adhesive layers are welded in the area of the tips of the gemstones on the setting side. 9. Verfahren nach Anspruch 8,
dadurch gekennzeichnet, daß auf die zweite Schmelzklebstoffschicht eine Selbstklebe­schicht aufgebracht wird.9. The method according to claim 8,
characterized in that a self-adhesive layer is applied to the second hot melt adhesive layer. 10. Verfahren nach den Ansprüchen 8 oder 9,
dadurch gekennzeichnet, daß auf die mit Schmelzklebstoffschicht versehenen Steine eine vorgefertigte Verbundschicht aus Effektschicht, Füllschicht mit Selbstklebeschichten auf beiden Seiten und Schmelzklebstoffschicht und gegebenenfalls Selbstkle­beschicht und gegebenenfalls Abdeckschicht, aufgebracht wird.10. The method according to claims 8 or 9,
characterized in that a prefabricated composite layer consisting of effect layer, filling layer with self-adhesive layers on both sides and hot-melt adhesive layer and optionally self-adhesive layer and optionally cover layer is applied to the stones provided with the hot-melt adhesive layer.
EP89109967A 1988-06-14 1989-06-01 Set of ornamental stones and process for manufacturing the same Expired - Lifetime EP0346699B1 (en)

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DE3820250A DE3820250A1 (en) 1988-06-14 1988-06-14 JEWELRY STONE COMPOSITE AND METHOD FOR THE PRODUCTION THEREOF

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FR2183229A1 (en) * 1972-05-03 1973-12-14 Swarovski & Co
DE2452250A1 (en) * 1974-11-04 1976-05-13 Swarovski & Co JEWELRY STONES, PROCESS FOR THEIR MANUFACTURING AND DEVICE FOR CARRYING OUT THE PROCESS
FR2444420A1 (en) * 1978-12-21 1980-07-18 Swarovski & Co PROCESS FOR THE MANUFACTURE OF SEPARATE DECORATIVE STONES WITH HOT-ACTIVE ADHESIVE COATING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007009138A2 (en) * 2005-07-22 2007-01-25 D. Swarovski & Co. Method for gluing precious stones comprising a tapered rear face to leather
WO2007009138A3 (en) * 2005-07-22 2007-05-10 Swarovski & Co Method for gluing precious stones comprising a tapered rear face to leather
US7691221B2 (en) 2005-07-22 2010-04-06 D. Swarovski & Co. Method for gluing decorative stones
EP3449757A1 (en) * 2017-09-05 2019-03-06 Helcor-Leder-Tec GmbH Fixing of hard materials on leather

Also Published As

Publication number Publication date
US4936116A (en) 1990-06-26
DE3820250A1 (en) 1989-12-21
CA1323993C (en) 1993-11-09
KR900000048A (en) 1990-01-30
ATE80274T1 (en) 1992-09-15
AU3622989A (en) 1989-12-21
DE58902237D1 (en) 1992-10-15
DE3820250C2 (en) 1990-04-26
EP0346699B1 (en) 1992-09-09
CN1038787A (en) 1990-01-17
AU614622B2 (en) 1991-09-05
JPH02191406A (en) 1990-07-27
CN1017408B (en) 1992-07-15
BR8902855A (en) 1990-02-01

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