WO2005087498A2 - Method for producing a decoration on a bakeable substrate - Google Patents

Method for producing a decoration on a bakeable substrate Download PDF

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Publication number
WO2005087498A2
WO2005087498A2 PCT/FR2005/000506 FR2005000506W WO2005087498A2 WO 2005087498 A2 WO2005087498 A2 WO 2005087498A2 FR 2005000506 W FR2005000506 W FR 2005000506W WO 2005087498 A2 WO2005087498 A2 WO 2005087498A2
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WO
WIPO (PCT)
Prior art keywords
substrate
decoration
resin
layer
producing
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Application number
PCT/FR2005/000506
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French (fr)
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WO2005087498A3 (en
Inventor
Françoise PRIVAT
Original Assignee
Privat Francoise
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Publication date
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Publication of WO2005087498A2 publication Critical patent/WO2005087498A2/en
Publication of WO2005087498A3 publication Critical patent/WO2005087498A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • 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
    • 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

Definitions

  • the present invention relates to the field of decoration of objects, and in particular to the transfer of images or printed matter (vitrifiable decals) onto heat resistant objects so as to mark and decorate said objects definitively.
  • Objects to be decorated can be metal, glass, porcelain, ceramic, resin, etc.
  • the present invention is applied in particular, but not exclusively, to the production of decorations on jewelry, any fashion accessory or any other medium.
  • a decal intended for this purpose consists in particular of an image layer based on at least one vitrifiable color, an adhesive layer bonded to the image layer and a layer of varnish intended to protect the layer. of image.
  • vitrifiable color is intended essentially to denote a pigment, also called enamel, having a melting temperature generally between 500 ° C.
  • the principle of image transfer by decal consists in applying the image formed in a layer to the surface of the object to be decorated, the image being glued to the surface by means of an adhesive layer.
  • the object to be decorated with the image is then baked in an oven to cause vitrification by fusion of the color or colors composing the image layer.
  • the firing temperature is chosen so that the enamel is sufficiently fluid to spread out and form a sheet of uniform thickness. After the passage in the oven, one obtains a vitrified image layer integrated into the material of the object.
  • vitrifiable decals There are two types of vitrifiable decals: the so-called slippery decals with water and the decals allowing the dry transfer of the image.
  • French patent application FR24461886 describes an example of a sliding water decal.
  • the color layer is deposited on a sticky face of a paper support.
  • the sticky, initially dry, side of the sheet of paper is moistened. Under the action of water, the glue becomes liquid, so that the image layer can be glued to the surface of the object, the paper support having been removed beforehand.
  • the object provided with the image is then passed to the oven to allow the vitrification of the color or colors composing the image layer.
  • a decal allowing the dry transfer of the image is presented in French patent application FR2754765.
  • This decal comprises in particular a layer of a sublimable overprint varnish when hot which covers the image layer, as well as an adhesive layer which covers the image layer opposite the layer of varnish.
  • Such a decal is transferred dry to the object to be marked or decorated, then is heated under controlled conditions, which ensures the vitrification of the image layer as well as the sublimation of the layer of varnish and of the layer d 'adhesive.
  • the methods for producing decorations on the objects as described above have a certain number of drawbacks.
  • these methods do not offer entirely satisfactory results in terms of the sharpness of the decoration formed on the surface of the object.
  • the objects depending on the material in which they are formed, offer a more or less good decor hold.
  • the current technique consists in baking the object affixed with the decoration at a baking temperature corresponding to the temperature with which the enamel constituting the image becomes sufficiently fluid to spread and form a sheet of uniform thickness.
  • the cooking temperature generally used is of the order of 900 ° C.
  • the present invention intends to remedy the drawbacks of the prior art by proposing an embodiment method for decorating heat-resistant objects whatever their shape and dimensions.
  • the present invention also aims to provide a method for producing a decoration having a good hold on the object to be decorated, whatever the material constituting said object.
  • the present invention also aims to provide a method for producing a wide range of decorations.
  • the invention also aims to allow the decoration of objects from traditional decals.
  • the present invention relates to a process for producing a decoration on a substrate capable of cooking, and it is remarkable, in its broadest sense, in that the process comprises the following successive steps: a) depositing 'a first layer of resin on the substrate to be decorated; b) baking the substrate provided with the protective layer under controlled conditions of temperature and duration to cause the polymerization of the resin layer on said substrate; c) depositing a film image forming the decoration on the substrate obtained at the end of the previous step; d) baking the substrate provided with the decoration under controlled conditions of temperature and duration to cause the decoration to dry; e) depositing on the decoration at least or on the substrate provided with the decoration of a second layer of resin after a prior step of cooling the decoration and the substrate.
  • the resin layers are based on epoxy resin, polyester resin or polyurethane resin.
  • step b) consists in baking the substrate provided with the resin layer at a temperature between 70 ° C and 90 ° C, and preferably at 80 ° C.
  • the film decoration is cut beforehand to be adapted to the dimensions of the substrate or to correspond to the dimensions of the image.
  • the decoration comprises a layer of screen-printed enamel formed of at least one pigment, said layer of enamel being covered with a layer of varnish.
  • step d) consists in baking the substrate provided with the decoration at a temperature between 70 ° C and 90 ° C.
  • step d) consists in cooking the substrate provided with the decoration for approximately two hours.
  • the resin applied is a neutral resin, colored or comprising material.
  • the method further comprises a last step consisting in drying the decorated substrate in a substantially hermetic medium.
  • the present invention also relates to a fashion accessory or equivalent obtained by the method described above.
  • the invention will be better understood using the description, given below for purely explanatory purposes, of an embodiment of the invention, with reference to FIG. 1 illustrating the steps for producing a decoration on an object according to the invention.
  • the first step 'of the process for producing a decoration on an object (1) formed in a material which can be baked consists in depositing on the object (1) to be decorated a first layer of resin (2).
  • the resin layer (2) can be distributed either over the entire object (1) to be decorated, or over a limited area (or more) area (s) of the object ( 1) to decorate.
  • said resin layer (2) is based on epoxy resin, polyester resin or polyurethane resin.
  • the next step is to put the assembly (10) thus formed in the oven.
  • the assembly (10) is baked at a temperature T1 of approximately 80 ° C.
  • T1 the temperature of approximately 80 ° C.
  • a decal (3) formed of the image to be transferred and previously cut to the dimensions of the image, is deposited on the layer of resin (2) polymerized to form an assembly (100).
  • the decal (3) has dimensions smaller than those of the object (1).
  • the decal can be cut according to the dimensions of the object (1) to be decorated without departing from the invention.
  • said object (1) will be entirely coated with said first layer of resin (2).
  • the decal comprises a screen-printed enamel layer formed of at least one pigment, said enamel layer being covered with a layer of varnish.
  • the new assembly (100) thus formed is then placed in the oven to be cooked.
  • the cooking step is carried out under controlled conditions of temperature and duration so as to cause the decoration to dry.
  • the object (1) provided with the decal (3) is cooked at a temperature T2 of approximately 80 ° C. for approximately two hours.
  • T2 the temperature and cooking time conditions may vary depending on the type of decal employed.
  • the assembly (100) is subjected to a cooling step, which can be carried out either naturally or in an induced manner.
  • a second layer of resin (4) is deposited on the face of said assembly (100) supporting the decal (3).
  • the object (1) thus decorated is then subjected to a step of drying the substrate in a medium in which any humidity and any mixing of air which can generate deposits of dust or the like on the surface of the second layer of resin (4 ) are deleted.
  • the second resin layer (4) can be formed from epoxy resin, polyester resin or polyurethane resin.
  • the second layer of resin (4) is identical to the first layer of resin (2) deposited directly on the surface of said object (1) to be decorated.
  • the resin constituting one, the other or the two layers (2, 4) may be neutral or else colored according to the desired appearance.
  • the resin may include material to give the object a particular effect depending on the component used and the shape of said component. It could for example be la_powder of mica to obtain an iridescent effect, glitter, stars or any other configuration of aluminum or epoxy resin.

Abstract

The invention relates to a method for producing a decoration on a bakeable substrate (1) involving the following stages and consisting a) in placing a first resin layer on a decoratable substrate, b) in baking the substrate provided with a resin layer under temperature controlled conditions during a time which is required for polymerising the resin layer (2) on the substrate, c) in applying a decoration image in the form of a film (3) obtainable at the preceding stage on the substrate, d) in baking the decorated substrate under temperature controlled conditions during a time required for drying the decoration and e) in coating the cooled decorated substrate with a second resin layer (4).

Description

PROCEDE DE REALISATION D'UN DECOR SUR UN SUBSTRAT SUSCEPTIBLE DE CUISSON PROCESS FOR PRODUCING A DECOR ON A SUBSTRATE WHICH CAN BE COOKED
La présente invention se rapporte au domaine de la décoration d'objets, et notamment au transfert d'images ou d'imprimés (décalcomanies vitrifiables) sur des objets résistant à la chaleur de sorte à marquer et décorer de façon définitive lesdits objets. Les objets destinés à être décorés peuvent être en métal, verre, porcelaine, céramique, résine, etc. La présente invention est appliquée notamment, mais non exclusivement, à la réalisation de décors sur des bijoux, tout accessoire de mode ou tout autre support. Une décalcomanie destinée à cet effet est constituée notamment d'une couche d'image à base d'au moins une couleur vitrifiable, d'une couche adhésive liée à la couche d'image et d'une couche de vernis destinée à protéger la couche d' image . Par l'expression « couleur vitrifiable », on entend désigner essentiellement un pigment, également appelé émail, ayant une température de fusion généralement comprise entre 500°C et 1200°C. Le principe de transfert d'image par décalcomanie consiste à appliquer l'image formée en couche sur la surface de l'objet à décorer, l'image étant collée sur la surface par l'intermédiaire d'une couche adhésive. L'objet à décorer muni de l'image est ensuite cuit dans un four pour provoquer la vitrification par fusion de la ou des couleurs composant la couche d'image. La température de cuisson est choisie pour que l'émail soit suffisamment fluide pour s'étaler et former une nappe d'épaisseur uniforme. Après le passage au four, on obtient une couche d'image vitrifiée intégrée à la matière de l'objet. Il existe deux types de décalcomanies vitrifiables : les décalcomanies dites glissantes à l'eau et les décalcomanies permettant le transfert à sec de l'image. La demande de brevet français FR24461886 décrit un exemple de décalcomanie glissante à l'eau. Dans ce document, la couche de couleur est déposée sur une face collante d'un support en papier. Pour appliquer la décalcomanie, la face collante, initialement sèche, de la feuille de papier est humidifiée. Sous l'action de l'eau, la colle devient liquide, de sorte que la couche d'image peut être collée sur la surface de l'objet, le support en papier ayant été préalablement enlevé. L'objet muni de l'image est alors passé au four pour permettre la vitrification de la ou des couleurs composant la couche d'image. De même, un exemple de décalcomanie permettant le transfert à sec de l'image est présenté dans la demande de brevet français FR2754765. Cette décalcomanie comprend notamment une couche d'un vernis de surimpression sublimable à chaud qui recouvre la couche d'image, ainsi qu'une couche d' adhésive qui recouvre la couche d'image à l'opposée de la couche de vernis. Une telle décalcomanie est transférée à sec sur l'objet à marquer ou à décorer, puis est chauffée dans des conditions contrôlées, ce qui assure la vitrification de la couche d'image ainsi que la sublimation de la couche de vernis et de la couche d'adhésif.The present invention relates to the field of decoration of objects, and in particular to the transfer of images or printed matter (vitrifiable decals) onto heat resistant objects so as to mark and decorate said objects definitively. Objects to be decorated can be metal, glass, porcelain, ceramic, resin, etc. The present invention is applied in particular, but not exclusively, to the production of decorations on jewelry, any fashion accessory or any other medium. A decal intended for this purpose consists in particular of an image layer based on at least one vitrifiable color, an adhesive layer bonded to the image layer and a layer of varnish intended to protect the layer. of image. By the expression "vitrifiable color" is intended essentially to denote a pigment, also called enamel, having a melting temperature generally between 500 ° C. and 1200 ° C. The principle of image transfer by decal consists in applying the image formed in a layer to the surface of the object to be decorated, the image being glued to the surface by means of an adhesive layer. The object to be decorated with the image is then baked in an oven to cause vitrification by fusion of the color or colors composing the image layer. The firing temperature is chosen so that the enamel is sufficiently fluid to spread out and form a sheet of uniform thickness. After the passage in the oven, one obtains a vitrified image layer integrated into the material of the object. There are two types of vitrifiable decals: the so-called slippery decals with water and the decals allowing the dry transfer of the image. French patent application FR24461886 describes an example of a sliding water decal. In this document, the color layer is deposited on a sticky face of a paper support. To apply the decal, the sticky, initially dry, side of the sheet of paper is moistened. Under the action of water, the glue becomes liquid, so that the image layer can be glued to the surface of the object, the paper support having been removed beforehand. The object provided with the image is then passed to the oven to allow the vitrification of the color or colors composing the image layer. Likewise, an example of a decal allowing the dry transfer of the image is presented in French patent application FR2754765. This decal comprises in particular a layer of a sublimable overprint varnish when hot which covers the image layer, as well as an adhesive layer which covers the image layer opposite the layer of varnish. Such a decal is transferred dry to the object to be marked or decorated, then is heated under controlled conditions, which ensures the vitrification of the image layer as well as the sublimation of the layer of varnish and of the layer d 'adhesive.
Cependant, les méthodes pour réaliser des décors sur les objets telles que décrites précédemment présentent un certain nombre d'inconvénients. En particulier, ces méthodes n'offrent pas de résultats entièrement satisfaisants en terme de netteté du décor formé à la surface de l'objet. En outre, les objets, suivant le matériau dans lequel ils sont formés, offrent une tenue au décor plus ou moins bonne. Par ailleurs, la technique actuelle consiste à cuire l'objet apposé du décor à une température de cuisson correspondant à la température avec laquelle 1 ' émail constituant l'image devient suffisamment fluide pour s'étaler et former une nappe d'épaisseur uniforme. La température de cuisson généralement employée est de l'ordre de 900°C.However, the methods for producing decorations on the objects as described above have a certain number of drawbacks. In particular, these methods do not offer entirely satisfactory results in terms of the sharpness of the decoration formed on the surface of the object. In addition, the objects, depending on the material in which they are formed, offer a more or less good decor hold. Furthermore, the current technique consists in baking the object affixed with the decoration at a baking temperature corresponding to the temperature with which the enamel constituting the image becomes sufficiently fluid to spread and form a sheet of uniform thickness. The cooking temperature generally used is of the order of 900 ° C.
La présente invention entend remédier aux inconvénients de l'art antérieur en proposant un procédé de réalisation permettant de décorer des objets résistant à la chaleur quelles que soient leur forme et leurs dimensions. La présente invention a également pour but de proposer un procédé permettant de réaliser un décor présentant une bonne tenue sur l'objet à décorer, quel que soit le matériau constituant ledit objet. La présente invention a également pour but de proposer un procédé permettant de réaliser une gamme étendue de décors. L'invention a également pour but de permettre la réalisation de décor d'objets à partir de décalcomanies traditionnelles .The present invention intends to remedy the drawbacks of the prior art by proposing an embodiment method for decorating heat-resistant objects whatever their shape and dimensions. The present invention also aims to provide a method for producing a decoration having a good hold on the object to be decorated, whatever the material constituting said object. The present invention also aims to provide a method for producing a wide range of decorations. The invention also aims to allow the decoration of objects from traditional decals.
Pour ce faire, la présente invention concerne un procédé de réalisation d'un décor sur un substrat susceptible de cuisson, et elle est remarquable, dans son acception la plus large, en ce que le procédé comporte les étapes successives suivantes : a) dépôt d'une première couche de résine sur le substrat à décorer ; b) cuisson du substrat muni de la couche de protection dans des conditions contrôlées de température et de durée pour provoquer la polymérisation de la couche de résine sur ledit substrat ; c) dépôt d'une image en film formant le décor sur le substrat obtenu à l'issue de l'étape précédente ; d) cuisson du substrat muni du décor dans des conditions contrôlées de température et de durée pour provoquer le séchage du décor ; e) dépôt sur le décor au moins ou sur le substrat muni du décor d'une seconde couche de résine après une étape préalable de refroidissement du décor et du substrat. De préférence, les couches de résine sont à base de résine époxy, résine de polyester ou résine de polyuréthane. Avantageusement, l'étape b) consiste à cuire le substrat muni de la couche de résine à une température comprise entre 70°C et 90°C, et de préférence à 80°C. Avantageusement, le décor en film est préalablement découpé pour être adapté aux dimensions du substrat ou pour correspondre aux dimensions de l'image. Avantageusement, le décor comprend une couche d'émail sérigraphié formée d'au moins un pigment, ladite couche d'émail étant recouverte d'une couche de vernis. Avantageusement, l'étape d) consiste à cuire le substrat muni du décor à une température comprise entre 70°C et 90°C. Avantageusement, l'étape d) consiste à cuire le substrat muni du décor pendant deux heures environ. Avantageusement, la résine appliquée est une résine neutre, colorée ou comportant de la matière. Selon un mode de réalisation préféré de l'invention, le procédé comporte en outre une dernière étape consistant à sécher le substrat décoré dans un milieu sensiblement hermétique .To do this, the present invention relates to a process for producing a decoration on a substrate capable of cooking, and it is remarkable, in its broadest sense, in that the process comprises the following successive steps: a) depositing 'a first layer of resin on the substrate to be decorated; b) baking the substrate provided with the protective layer under controlled conditions of temperature and duration to cause the polymerization of the resin layer on said substrate; c) depositing a film image forming the decoration on the substrate obtained at the end of the previous step; d) baking the substrate provided with the decoration under controlled conditions of temperature and duration to cause the decoration to dry; e) depositing on the decoration at least or on the substrate provided with the decoration of a second layer of resin after a prior step of cooling the decoration and the substrate. Preferably, the resin layers are based on epoxy resin, polyester resin or polyurethane resin. Advantageously, step b) consists in baking the substrate provided with the resin layer at a temperature between 70 ° C and 90 ° C, and preferably at 80 ° C. Advantageously, the film decoration is cut beforehand to be adapted to the dimensions of the substrate or to correspond to the dimensions of the image. Advantageously, the decoration comprises a layer of screen-printed enamel formed of at least one pigment, said layer of enamel being covered with a layer of varnish. Advantageously, step d) consists in baking the substrate provided with the decoration at a temperature between 70 ° C and 90 ° C. Advantageously, step d) consists in cooking the substrate provided with the decoration for approximately two hours. Advantageously, the resin applied is a neutral resin, colored or comprising material. According to a preferred embodiment of the invention, the method further comprises a last step consisting in drying the decorated substrate in a substantially hermetic medium.
La présente invention se rapporte également à un accessoire de mode ou équivalent obtenu par le procédé décrit précédemment. On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'un mode de réalisation de l'invention, en référence à la figure 1 illustrant les étapes de réalisation d'un décor sur un objet conformément à l'invention.The present invention also relates to a fashion accessory or equivalent obtained by the method described above. The invention will be better understood using the description, given below for purely explanatory purposes, of an embodiment of the invention, with reference to FIG. 1 illustrating the steps for producing a decoration on an object according to the invention.
La première étape' du procédé de réalisation d'un décor sur un objet (1) formé dans un matériau pouvant être cuit consiste à déposer sur l'objet (1) à décorer une première couche de résine (2). Selon le résultat souhaité, la couche de résine (2) pourra être répartie soit sur la totalité de l'objet (1) à décorer, soit sur une zone (ou plusieurs) zone(s) limitée(s) de l'objet (1) à décorer. Avantageusement, ladite couche de résine (2) est à base de résine époxy, de résine de polyester ou de résine de polyuréthane . Selon le type de résine employé, il sera nécessaire, préalablement à son application sur la surface de l'objet (1) à décorer, de rajouter un durcisseur, puis de procéder à une opération de dégazage.The first step 'of the process for producing a decoration on an object (1) formed in a material which can be baked consists in depositing on the object (1) to be decorated a first layer of resin (2). Depending on the desired result, the resin layer (2) can be distributed either over the entire object (1) to be decorated, or over a limited area (or more) area (s) of the object ( 1) to decorate. Advantageously, said resin layer (2) is based on epoxy resin, polyester resin or polyurethane resin. Depending on the type of resin used, it will be necessary, prior to its application to the surface of the object (1) to be decorated, to add a hardener, then to carry out a degassing operation.
Une fois la couche de résine (2) déposée sur l'objet (1) à décorer, l'étape suivante consiste à mettre l'ensemble (10) ainsi formé au four. Afin de provoquer la polymérisation de la couche de résine (2) sur la surface de l'objet (1) à décorer, l'ensemble (10) est cuit à une température Tl de 80°C environ. Une fois la polymérisation obtenue, une décalcomanie (3), formée de l'image à transférer et préalablement découpée aux dimensions de l'image, est déposée sur la couche de résine (2) polymérisée pour former un ensemble (100). Dans l'exemple illustré, la décalcomanie (3) présente des dimensions inférieures à celles de l'objet (1). Bien entendu, il est évident pour l'homme du métier que la décalcomanie pourra être découpée selon les dimensions de l'objet (1) à décorer sans pour autant sortir de l'invention. Dans ce cas, ledit objet (1) sera entièrement revêtu de ladite première couche de résine (2). Avantageusement,, la décalcomanie comprend une couche d'émail sérigraphié formée d'au moins un pigment, ladite couche d'émail étant recouverte d'une couche de vernis.Once the resin layer (2) has been deposited on the object (1) to be decorated, the next step is to put the assembly (10) thus formed in the oven. In order to cause the resin layer (2) to polymerize on the surface of the object (1) to be decorated, the assembly (10) is baked at a temperature T1 of approximately 80 ° C. Once the polymerization has been obtained, a decal (3), formed of the image to be transferred and previously cut to the dimensions of the image, is deposited on the layer of resin (2) polymerized to form an assembly (100). In the example illustrated, the decal (3) has dimensions smaller than those of the object (1). Of course, it is obvious to the skilled person that the decal can be cut according to the dimensions of the object (1) to be decorated without departing from the invention. In this case, said object (1) will be entirely coated with said first layer of resin (2). Advantageously, the decal comprises a screen-printed enamel layer formed of at least one pigment, said enamel layer being covered with a layer of varnish.
Le nouvel ensemble (100) ainsi formé est alors mis au four pour être cuit. L'étape de cuisson est réalisée dans des conditions contrôlées de température et de durée de façon à provoquer le séchage du décor. De préférence, l'objet (1) muni de la décalcomanie (3) est cuit à une température T2 de 80°C environ pendant deux heures environ. Bien entendu, les conditions de température et de durée de cuisson peuvent varier selon le type de décalcomanie employée.The new assembly (100) thus formed is then placed in the oven to be cooked. The cooking step is carried out under controlled conditions of temperature and duration so as to cause the decoration to dry. Preferably, the object (1) provided with the decal (3) is cooked at a temperature T2 of approximately 80 ° C. for approximately two hours. Of course, the temperature and cooking time conditions may vary depending on the type of decal employed.
Une fois l'eau contenue dans la décalcomanie totalement évaporée, l'ensemble (100) est soumis à une étape de refroidissement, lequel peut être réalisé soit de manière naturelle, soit de manière provoquée.Once the water contained in the decal has completely evaporated, the assembly (100) is subjected to a cooling step, which can be carried out either naturally or in an induced manner.
L'ensemble (100) étant parvenu à un état complètement refroidi, une seconde couche de résine (4) est déposée sur la face dudit ensemble (100) supportant la décalcomanie (3).The assembly (100) having reached a completely cooled state, a second layer of resin (4) is deposited on the face of said assembly (100) supporting the decal (3).
L'objet (1) ainsi décoré est alors soumis à une étape de séchage du substrat dans un milieu dans lequel toute humidité et tout brassage d'air pouvant générer des dépôts de poussière ou autres sur la surface de la deuxième couche de résine (4) sont supprimés. De même que pour la première couche de résine (2), la seconde couche de résine (4) peut être formé de résine époxy, de résine de polyester ou de résine de polyuréthane. Avantageusement, la seconde couche de résine (4) est identique à la première couche de résine (2) déposée directement sur la surface dudit objet (1) à décorer. Avantageusement, la résine constituant l'une, l'autre ou les deux couches (2, 4) pourra être neutre ou bien colorée selon l'aspect souhaité. De même, la résine pourra comporter de la matière pour donner à l'objet un effet particulier selon le composant utilisé et la forme dudit composant. Il pourra s'agir par exemple de la_poudre de mica pour obtenir un effet irisé, des paillettes, des étoiles ou tout autre configuration d'aluminium ou de résine époxy.The object (1) thus decorated is then subjected to a step of drying the substrate in a medium in which any humidity and any mixing of air which can generate deposits of dust or the like on the surface of the second layer of resin (4 ) are deleted. As with the first resin layer (2), the second resin layer (4) can be formed from epoxy resin, polyester resin or polyurethane resin. Advantageously, the second layer of resin (4) is identical to the first layer of resin (2) deposited directly on the surface of said object (1) to be decorated. Advantageously, the resin constituting one, the other or the two layers (2, 4) may be neutral or else colored according to the desired appearance. Similarly, the resin may include material to give the object a particular effect depending on the component used and the shape of said component. It could for example be la_powder of mica to obtain an iridescent effect, glitter, stars or any other configuration of aluminum or epoxy resin.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de l'invention sans pour autant sortir du cadre du brevet. The invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to carry out different variants of the invention without going beyond the scope of the patent.

Claims

REVENDICATIONS
1. Procédé de réalisation d'un décor sur un substrat1. Method for producing a decoration on a substrate
(1) susceptible de cuisson, caractérisé en ce qu'il comporte successivement les étapes consistant à : a) déposer une première couche de résine (2) sur le substrat (1) à décorer ; b) cuire le substrat (1) muni de la couche de résine(1) capable of cooking, characterized in that it successively comprises the steps consisting in: a) depositing a first layer of resin (2) on the substrate (1) to be decorated; b) baking the substrate (1) provided with the resin layer
(2) dans des conditions contrôlées de température et de durée pour provoquer la polymérisation de la couche de résine (2) sur ledit substrat (1) ; c) déposer une image en film (3) formant le décor sur le substrat obtenu à l'issue de l'étape précédente ; d) cuire le substrat muni du décor dans des conditions contrôlées de température et de durée pour provoquer le séchage du décor ; e) après son refroidissement, recouvrir le substrat muni du décor d'une seconde couche de résine (4). (2) under controlled temperature and time conditions to cause polymerization of the resin layer (2) on said substrate (1); c) depositing a film image (3) forming the decoration on the substrate obtained at the end of the previous step; d) baking the substrate provided with the decoration under controlled conditions of temperature and duration to cause the decoration to dry; e) after cooling, cover the substrate provided with the decoration with a second layer of resin (4).
2. Procédé de réalisation d'un décor sur un substrat (1) susceptible de cuisson selon la revendication 1, caractérisé en ce que les couches de résine (2, 4) sont à base de résine époxy, résine de polyester ou résine de polyuréthane .2. Method for producing a decoration on a substrate (1) capable of baking according to claim 1, characterized in that the resin layers (2, 4) are based on epoxy resin, polyester resin or polyurethane resin .
3. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon la revendication 1 ou la revendication 2, caractérisé en ce que l'étape b) consiste à cuire le substrat (1) muni de la couche de résine (2) à une température comprise entre 70°C et 90°C, et de préférence à 80°C.3. A method of producing a decoration on a substrate capable of cooking according to claim 1 or claim 2, characterized in that step b) consists in baking the substrate (1) provided with the resin layer (2) at a temperature between 70 ° C and 90 ° C, and preferably at 80 ° C.
4. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le décor en film (3) est préalablement découpé pour être adapté aux dimensions du substrat (1) ou pour correspondre aux dimensions de l'image. 4. Method for producing a decoration on a substrate capable of cooking according to any one of claims 1 to 3, characterized in that the decoration in film (3) is cut beforehand to be adapted to the dimensions of the substrate (1) or to correspond to the dimensions of the image.
5. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le décor comprend une couche d'émail sérigraphié formée d'au moins un pigment, ladite couche d'émail étant recouverte d'une couche de vernis.5. Method for producing a decoration on a substrate capable of cooking according to any one of claims 1 to 4, characterized in that the decoration comprises a layer of screen-printed enamel formed of at least one pigment, said layer d enamel being covered with a layer of varnish.
6. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'étape d) consiste à cuire le substrat muni du décor à une température comprise entre 70°C et 90°C.6. A method of producing a decoration on a substrate capable of cooking according to any one of claims 1 to 5, characterized in that step d) consists of cooking the substrate provided with the decoration at a temperature between 70 ° C and 90 ° C.
7. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'étape d) consiste à cuire le substrat muni du décor pendant deux heures environ.7. A method of producing a decoration on a substrate capable of cooking according to any one of claims 1 to 6, characterized in that step d) consists in cooking the substrate provided with the decoration for approximately two hours.
8. Procédé de réalisation d'un décor sur un substrat susceptible de cuisson selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la résine appliquée est une résine neutre, colorée ou comportant de la matière . 8. A method of producing a decoration on a substrate capable of baking according to any one of claims 1 to 7, characterized in that the resin applied is a neutral resin, colored or comprising material.
9. Procédé selon la revendication 1, caractérisé en ce qu'il comporte en outre, après l'étape e), une étape de séchage du substrat décoré dans un milieu sensiblement hermétique . 9. Method according to claim 1, characterized in that it further comprises, after step e), a step of drying the decorated substrate in a substantially hermetic medium.
10. Accessoire de mode ou équivalent obtenu par le procédé selon 1 ' ne quelconque des revendications précédentes . 10. Fashion accessory or equivalent obtained by the method according to one of any of the preceding claims.
PCT/FR2005/000506 2004-03-04 2005-03-03 Method for producing a decoration on a bakeable substrate WO2005087498A2 (en)

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FR0402289 2004-03-04
FR0402289A FR2867106B1 (en) 2004-03-04 2004-03-04 PROCESS FOR PRODUCING A DECORATION ON A SUBSTRATE LIKELY TO COOK

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WO2005087498A3 WO2005087498A3 (en) 2006-01-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141336A1 (en) * 1971-08-18 1973-02-22 Albrecht J Fa Underglaze decorations - on china,ceramics,pottery enamel etc
GB1420347A (en) * 1972-11-20 1976-01-07 Meyercord Co Ceramic decalcomaina and method of making
US4068033A (en) * 1976-11-17 1978-01-10 Commercial Decal, Inc. Heat-releasable decalcomanias and adhesive composition therefor
FR2446186A1 (en) * 1979-01-12 1980-08-08 Barta Franz Kg DECALCOMANIA FOR APPLYING DECORATIONS OR SIGNS ON GLASS, CERAMIC OR SIMILAR MATERIALS, METHOD FOR TRANSFERRING SUCH DECALS AND INSTALLATION FOR IMPLEMENTING THE PROCESS
EP1207050A2 (en) * 2000-10-31 2002-05-22 International Imaging Materials Inc. Thermal transfer system for fired ceramic decals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141336A1 (en) * 1971-08-18 1973-02-22 Albrecht J Fa Underglaze decorations - on china,ceramics,pottery enamel etc
GB1420347A (en) * 1972-11-20 1976-01-07 Meyercord Co Ceramic decalcomaina and method of making
US4068033A (en) * 1976-11-17 1978-01-10 Commercial Decal, Inc. Heat-releasable decalcomanias and adhesive composition therefor
FR2446186A1 (en) * 1979-01-12 1980-08-08 Barta Franz Kg DECALCOMANIA FOR APPLYING DECORATIONS OR SIGNS ON GLASS, CERAMIC OR SIMILAR MATERIALS, METHOD FOR TRANSFERRING SUCH DECALS AND INSTALLATION FOR IMPLEMENTING THE PROCESS
EP1207050A2 (en) * 2000-10-31 2002-05-22 International Imaging Materials Inc. Thermal transfer system for fired ceramic decals

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WO2005087498A3 (en) 2006-01-26
FR2867106A1 (en) 2005-09-09
FR2867106B1 (en) 2006-04-28

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