EP2480419B1 - Decorative coating with integrated sticker for a transport vehicle - Google Patents

Decorative coating with integrated sticker for a transport vehicle Download PDF

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Publication number
EP2480419B1
EP2480419B1 EP10771160.8A EP10771160A EP2480419B1 EP 2480419 B1 EP2480419 B1 EP 2480419B1 EP 10771160 A EP10771160 A EP 10771160A EP 2480419 B1 EP2480419 B1 EP 2480419B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
layer
paint
coating
new
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10771160.8A
Other languages
German (de)
French (fr)
Other versions
EP2480419A1 (en
Inventor
Thierry Guenard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nationale Des Chemins De Fer Francais - Sn Ste
Original Assignee
SNCF Mobilites
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Publication date
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Publication of EP2480419A1 publication Critical patent/EP2480419A1/en
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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • G09F21/048—Advertisement panels on sides, front or back of vehicles
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer

Definitions

  • the invention relates to the field of the decoration of transport vehicles, in particular, railway transport vehicles.
  • the decoration of railway vehicles fulfills an essentially aesthetic function. This makes it possible to personalize the vehicles and to make them more pleasant to look at, more attractive.
  • the decoration of railway vehicles also fulfills a function of protecting the external surface of vehicles against external aggressions (rain, hail, graffiti, etc.).
  • This paint application method effectively allows to decorate large areas uniformly or almost uniformly (color gradient) with a thin coating (150-200 ⁇ m).
  • Such a method unfortunately does not allow to decorate the vehicle with patterns having various shapes and colors.
  • the lower protective films 21 and upper 27 are removed and the lower adhesive layer 22 is brought into contact with the outer surface of the vehicle 1, the surface of the vehicle 1 having been previously covered with a layer of paint 11, called by the following layer.
  • the adhesive can also be applied to a layer of paint protected or not by a layer of varnish previously applied to the vehicle.
  • the adhesive 20, applied on the outer surface 1 of the vehicle, is therefore raised relative to the underlayer of paint 11. Because of this relief, the thickness of the adhesive, of the order of 200 micrometers , forms a catch with the wind during the displacement of the vehicle which damages the adhesive prematurely, its lifespan not exceeding 7 years whereas that of a painting exceeds 12 years.
  • the adhesive 20 tends to "peel off” due to the degradation of the upper adhesive layer 25 and the upper film 26; this is called delamination of the layers of the adhesive.
  • the delamination is accentuated by the speed of circulation of the rail vehicle which exceeds 300km / h.
  • a delaminated adhesive promotes vehicle corrosion, with rainwater coming into contact with the exterior surface of the vehicle.
  • the damaged adhesive 20 has an unsightly appearance and it is necessary to replace it. To perform this operation, the vehicle must be immobilized, which has a disadvantage.
  • the paint layer has the same thickness as the adhesive.
  • the adhesive has a thickness of between 20 and 40 microns which allows to integrate it into a paint layer without creating extra thickness in the coating or relief. This is advantageously obtained by decreasing the thickness of the mechanical support layer of the adhesive, all the elements of the coating participating in the support of the illustrated layer, in particular, the paint layer and the protective layer.
  • the coating has a thickness of between 50 and 80 micrometers, preferably 70 micrometers. This advantageously allows to decorate the vehicle satisfactorily without increasing the mass of the vehicle with a thick and therefore heavy coating.
  • a sub-layer of paint is applied between the outer surface of the vehicle, on the one hand, and the decorative adhesive and the paint layer, on the other hand.
  • the mechanical support layer of the adhesive comprises a paint film in the dry state.
  • a support is simple to implement and makes it possible to reinforce the compatibility with the layer of varnish and the layer of paint applied to the external surface of the vehicle outside the surface covered by the adhesive.
  • the mechanical support layer of the adhesive consists of a paint film in the dry state.
  • the dry paint film is formed from a paint having the same properties as the paint of the colored paint layer.
  • the compatibility of the support layer with the lacquer layer and the paint layer is reinforced, improving the resistance of the coating to wear and aging.
  • a layer of paint is applied to the outer surface of the vehicle prior to the application of the decorative adhesive, reserves being formed in the paint layer to receive the decorative adhesive. This advantageously allows to deposit the adhesive in the reserves in the paint layer which facilitates the positioning of the adhesive.
  • an undercoat of paint is applied to the exterior surface of the vehicle prior to the application of the paint layer and the adhesive.
  • the protective layer is advantageously removed by sanding.
  • the new coating is applied in good conditions due to the continuity of the surfaces of the old adhesive and the old paint layer.
  • the coating comprises an adhesive 30 consisting of a lower adhesive layer 32, a mechanical support layer 33 of the adhesive and an illustrated layer 34 having at least one printed pattern.
  • the adhesive is protected by a lower protective film 31 and an upper protective film 35.
  • This adhesive has the particularity of having a very low thickness in use, that is, when the protective films 31, 35 are removed from the adhesive 30.
  • the thickness of the adhesive varies between 20 and 40 micrometers. This is achieved by modifying the thickness of the layers of the adhesives of the prior art so as to obtain the lowest possible mechanical strength of the adhesive while allowing its handling.
  • Adhesives of the prior art are traditionally used as such. For this purpose, they must have sufficient mechanical strength to be moved, folded, rolled, etc., while resisting external aggression. Only thick adhesives are commercially available, the sum of the thicknesses of the lower adhesive layer, the support layer and the illustrated layer of a conventional adhesive being between 70 and 150 micrometers which is too thick to be integrated in a coating.
  • the adhesives used for the invention do not have a function of mechanical strength but only a support function of the printed pattern.
  • the adhesive is presented in the form of a very thin film, with a thickness of between 20 and 40 microns, which can not be used as such.
  • the removable protective films 31, 35 of the adhesive 30 are made of paper coated with an adhesive and have a thickness of between 30 and 50 micrometers.
  • the composition of these films 31, 35 is known to those skilled in the art, their thickness being greater than the protective films of the adhesives of the prior art so as to give the adhesive, when it is protected, a better hold mechanical during transport and handling.
  • the adhesive layer 32 comprises acrylic and has a thickness of between 10 and 20 microns.
  • the composition of the glue 32 is known to those skilled in the art.
  • the thickness of adhesive is lower than that of the adhesives of the prior art since the adhesive layer 32 does not fulfill a definitive or durable fastening function as in the adhesives of the prior art.
  • the very thin layer of glue 32 allows a simple positioning of the adhesive, the final fixing of the adhesive being completed by other means which will be detailed later.
  • the layer 33 of mechanical support of the adhesive 30 is made of PVC and has a thickness of between 10 and 20 microns. This support layer has a much lower thickness than the adhesives of the prior art, its role being solely to support the printed pattern of the adhesive.
  • the mechanical support layer 33 of the adhesive 30 comprises a dry paint film, i.e., a solid film, which has a thickness of between 10 and 20 microns.
  • This support layer has a much lower thickness than that of the adhesives of the prior art, its role being, on the one hand, to support the printed pattern of the adhesive and, on the other hand, to ensure optimum compatibility between a protective layer 43 and a colored paint layer 42 of the coating which will be presented later.
  • a dry paint film such as that manufactured by the company CORSO MAGENTA and known under the trade name "Paint Poser ®", is traditionally packaged in the form of rolls.
  • a paint is applied to a temporary support and then dried.
  • the paint used is of the same nature as that of the colored paint layer 42 which will be presented later.
  • the paints of the support layer 33 and of the paint layer 42 have similar properties and are compatible with each other which allows them to come into contact.
  • the dried paint film is preferably printed to include a decorative pattern, for example, by digital image printing, on a surface that can be flat or raised.
  • the dried film is then bonded to temporary shields to form an adhesive.
  • the adhesive with its paint film in the dry state is then rolled to form a roll which improves its packaging and facilitates its transport.
  • An adhesive with a support layer comprising a film of paint in the dry state has the advantage of not sinking which limits the risk of soiling.
  • the dry paint film advantageously has no volatile organic compound (VOC) which is advantageous for the environment.
  • VOC volatile organic compound
  • the illustrated layer 34 of the adhesive 30 is made in serigraphy or printing ink and has a thickness of between 5 and 15 micrometers.
  • This layer 34 is made by a digital image printing process (inkjet, laser, electrography, etc.) which allows great freedom in the design of the printed pattern, both in terms of colors, shapes , patterns that textures. It goes without saying that other printing processes could also be suitable, for example, screen printing, offset printing, etc.
  • the illustrated layer 34 comprises a pattern of a flower of different colors, the pattern being represented only in black on the Figure 7B .
  • the adhesive 30 may advantageously comprise recesses so that the surface on which the adhesive is applied is visible, here the undercoat of paint.
  • the decorative adhesive 30 is integrated in the coating for the outer surface of a transport vehicle as shown in FIG. figure 8 .
  • the coating 40 comprises a sub-layer of paint 41, or aprêt, applied on the outer surface of the vehicle, the decorative adhesive 30 being applied to the undercoat of paint 41.
  • the adhesive 30 comprises recesses, the undercoat of paint 41 is visible through said recesses.
  • the adhesive 30 is "bare” and does not include protective films 31, 35.
  • the coating 40 also includes a layer of colored paint 42 applied to said underlayer 41 outside the surface covered by the adhesive 30, the outer surfaces of the paint layer 42 and the adhesive 30 being continuous.
  • the adhesive 30 being integrated into the paint layer 42 which makes it possible to prevent its lateral displacement in the coating 40.
  • the colored paint 42 and the adhesive 30 have the same thickness, between 20 and 40 micrometers.
  • the coating 40 further comprises a protective layer, here a layer of varnish 43 applied to the continuous outer surfaces of the paint layer 42 and the adhesive 30.
  • the varnish 43 has a thickness of between 40 and 60 microns, its main function is to protect the paint layer 42 and the adhesive 30 against external attacks such as rain, hail or, in another area, graffiti.
  • the coating 40 makes it possible to integrate the adhesive 30 in the paint layer 42 because of the small thickness of the adhesive 30.
  • the adhesive 30 has an adhesive layer 32 and a thin support layer 33, this is not detrimental to the coating 40 since the adhesive 30 is held laterally by the paint layer 42 and protected vertically by the varnish layer 43. The vertical and horizontal displacements of the adhesive 30 are thus prevented. The mechanical strength of the adhesive 30 is never stressed because the latter is protected both horizontally and vertically.
  • the coating 40 has a small thickness of between 25 and 60 micrometers which corresponds to the thickness of a conventional coating based paint.
  • the coating thus has a low mass which is advantageous.
  • the painting of the paint film in the dry state is of the same nature as the painting of the paint layer 42 applied outside the surface covered by the adhesive 30, for example, an epoxy or polyurethane paint.
  • the same type of paint pigments is used which makes it possible to make the support layer 33 completely compatible with, on the one hand, the varnish layer 43 and, on the other hand, the paint layer 42.
  • the paint of the paint layer 42 is chosen to be compatible with the varnish 43.
  • the adhesive support layer used is a paint film formed from an adhesive. paint having the same properties as that of the paint layer 42. Due to increased compatibility, the coating thus formed has a better resistance to wear and aging.
  • this decorative method can be implemented successively on the same outer surface of a transport vehicle without requiring the total removal of the coating 40.
  • the varnish layer 43 when it is desired to modify the decoration pattern, if the latter is worn or old-fashioned, it is sufficient to "sand" the varnish layer 43 by a known sanding or pickling method in order to obtain a reduced coating thickness. , less than that of a coating with its layer of varnish, and whose outer surface is smooth. Preferably, between 50% and 100% of the varnish thickness is removed. It is said that the varnish is frosted.
  • a new adhesive and a new paint layer according to the invention are applied and a new layer of varnish is applied to the continuous outer surfaces of the new paint layer and the new one.
  • an undercoat of paint can be applied again to the polished outer surface of the old coating.
  • This provides a new quality coating, without requiring a long cleaning process, difficult to implement and requiring the use of toxic products.
  • the invention has been described for a railway vehicle, but it goes without saying that the invention also applies to a maritime, road or air vehicle.

Description

L'invention concerne le domaine de la décoration de véhicules de transport, en particulier, des véhicules de transport ferroviaire.The invention relates to the field of the decoration of transport vehicles, in particular, railway transport vehicles.

La décoration des véhicules ferroviaires remplit une fonction essentiellement esthétique. Cela permet de personnaliser les véhicules et de les rendre plus agréables à regarder, plus attractifs. La décoration des véhicules ferroviaires remplit également une fonction de protection de la surface extérieure des véhicules vis-à-vis des agressions extérieures (pluie, grêle, graffitis, etc.).The decoration of railway vehicles fulfills an essentially aesthetic function. This makes it possible to personalize the vehicles and to make them more pleasant to look at, more attractive. The decoration of railway vehicles also fulfills a function of protecting the external surface of vehicles against external aggressions (rain, hail, graffiti, etc.).

En référence à la figure 1 qui est une vue en coupe, avant la mise en service d'un véhicule ferroviaire, ce dernier est traditionnellement décoré avec de la peinture, selon un procédé classique, dans lequel on applique successivement sur la surface extérieure 1 du véhicule :

  • une sous-couche 11 de faible épaisseur (environ 50 micromètres), traditionnellement de couleur blanche,
  • une couche de base colorée 12 d'épaisseur (inférieure à 25 µm), dont la couleur est libre, et
  • une couche de vernis 13 d'épaisseur (environ 50 µm), pour protéger la couche de base 12 contre les agressions extérieures, ce vernis étant généralement transparent.
With reference to the figure 1 which is a sectional view, before the putting into service of a railway vehicle, the latter is traditionally decorated with paint, according to a conventional method, in which one applies successively on the outer surface 1 of the vehicle:
  • an underlayer 11 of small thickness (approximately 50 micrometers), traditionally of white color,
  • a colored base layer 12 of thickness (less than 25 μm), the color of which is free, and
  • a layer of varnish 13 thick (about 50 microns), to protect the base layer 12 against external aggression, the varnish is generally transparent.

Ce procédé d'application de peinture permet de manière efficace de décorer de grandes surfaces de manière uniforme ou quasiment uniforme (dégradé de couleurs) avec un revêtement de faible épaisseur (150 à 200 µm). Un tel procédé ne permet malheureusement pas de décorer le véhicule avec des motifs ayant des formes et des couleurs variées. Il n'est en particulier pas possible de décorer le véhicule avec des dessins numériques ou des photographies.This paint application method effectively allows to decorate large areas uniformly or almost uniformly (color gradient) with a thin coating (150-200 μm). Such a method unfortunately does not allow to decorate the vehicle with patterns having various shapes and colors. In particular, it is not possible to decorate the vehicle with digital drawings or photographs.

Pour résoudre cette difficulté, on connaît des adhésifs comprenant un motif que l'on vient déposer sur la surface extérieure du véhicule, le motif de l'adhésif étant de libre choix. Tout type de dessin ou de photographie peut être reproduit sur un adhésif par impression numérique ou par sérigraphie.To solve this problem, there are known adhesives comprising a pattern that is just deposited on the outer surface of the vehicle, the pattern of the adhesive being free choice. Any type of drawing or photograph can be reproduced on an adhesive by digital printing or screen printing.

Ces adhésifs 20 (Figure 2) sont vendus de manière courante dans le commerce et comprennent successivement plusieurs couches. En référence à la figure 2, l'adhésif comprend de sa couche inférieure à sa couche supérieure :

  • un film 21 de protection inférieur,
  • une couche de colle inférieure 22,
  • un support mécanique 23,
  • une couche d'encre 24 comprenant au moins un motif,
  • une couche de colle supérieure 25,
  • un film de protection définitive extérieur 26, constitué d'un vernis, PVC ou polyester, et
  • un film de protection supérieur 27.
These adhesives 20 ( Figure 2 ) are commonly sold commercially and successively comprise several layers. With reference to the figure 2 , the adhesive comprises from its lower layer to its upper layer:
  • a lower protective film 21,
  • a lower adhesive layer 22,
  • a mechanical support 23,
  • an ink layer 24 comprising at least one pattern,
  • an upper glue layer 25,
  • an outer definitive protective film 26, consisting of a varnish, PVC or polyester, and
  • an upper protective film 27.

Pour fixer l'adhésif 20 sur la surface extérieure 1 du véhicule, en référence à la figure 3, on retire les films de protection inférieure 21 et supérieure 27 et on met en contact la couche de colle inférieure 22 avec la surface extérieure du véhicule 1, la surface du véhicule 1 ayant été préalablement recouverte d'une couche de peinture 11, appelée par la suite sous-couche. L'adhésif peut également être appliqué sur une couche de peinture protégée ou non par une couche de vernis, préalablement appliquée sur le véhicule.To fix the adhesive 20 on the outer surface 1 of the vehicle, with reference to the figure 3 the lower protective films 21 and upper 27 are removed and the lower adhesive layer 22 is brought into contact with the outer surface of the vehicle 1, the surface of the vehicle 1 having been previously covered with a layer of paint 11, called by the following layer. The adhesive can also be applied to a layer of paint protected or not by a layer of varnish previously applied to the vehicle.

L'adhésif 20, appliqué sur la surface extérieure 1 du véhicule, est donc en relief par rapport à la sous-couche de peinture 11. En raison de ce relief, l'épaisseur de l'adhésif, de l'ordre de 200 micromètres, forme une prise au vent lors du déplacement du véhicule ce qui endommage l'adhésif de manière prématurée, sa durée de vie n'excédant pas 7 ans alors que celle d'une peinture excède 12 ans.The adhesive 20, applied on the outer surface 1 of the vehicle, is therefore raised relative to the underlayer of paint 11. Because of this relief, the thickness of the adhesive, of the order of 200 micrometers , forms a catch with the wind during the displacement of the vehicle which damages the adhesive prematurely, its lifespan not exceeding 7 years whereas that of a painting exceeds 12 years.

En outre, l'adhésif 20 a tendance à se « décoller » en raison de la dégradation de la couche de colle supérieure 25 et du film supérieur 26 ; on parle alors de délaminage des couches de l'adhésif. Le délaminage est accentué par la vitesse de circulation du véhicule ferroviaire qui excède 300km/h. Un adhésif délaminé favorise la corrosion du véhicule, l'eau de pluie pouvant entrer en contact avec la surface extérieure du véhicule.In addition, the adhesive 20 tends to "peel off" due to the degradation of the upper adhesive layer 25 and the upper film 26; this is called delamination of the layers of the adhesive. The delamination is accentuated by the speed of circulation of the rail vehicle which exceeds 300km / h. A delaminated adhesive promotes vehicle corrosion, with rainwater coming into contact with the exterior surface of the vehicle.

L'adhésif endommagé 20 présente un aspect inesthétique et il est nécessaire de le remplacer. Pour réaliser cette opération, le véhicule doit être immobilisé, ce qui présente un inconvénient.The damaged adhesive 20 has an unsightly appearance and it is necessary to replace it. To perform this operation, the vehicle must be immobilized, which has a disadvantage.

Outre leur durée de vie réduite, les adhésifs actuels sont difficiles à retirer et il est nécessaire de recourir à des produits chimiques qui doivent être manipulés avec précaution ce qui allonge la durée d'immobilisation du véhicule et les inconvénients qui en découlent en termes de rentabilité et de coût.In addition to their short life span, the current adhesives are difficult to remove and it is necessary to resort to chemicals that must be handled with care which increases the time of immobilization of the vehicle and the drawbacks that result in terms of profitability and cost.

Le document US 2007/036929 A1 divulgue un revêtement décoratif destiné à être appliqué sur une surface extérieure d'un véhicule de transport et comprenant:

  • un adhésif décoratif constitué successivement d'une couche de colle inférieure, d'une couche de support mécanique de l'adhésif et d'une couche illustrée comportant au moins un motif imprimé, l'adhésif étant appliqué sur la surface extérieure du véhicule;
  • une couche de protection appliquée sur la surface extérieure de l'adhésif et de la couche de peinture colorée appliquée sur la surface extérieure du véhicule.
The document US 2007/036929 A1 discloses a decorative coating for application to an outer surface of a transport vehicle and comprising:
  • a decorative adhesive consisting successively of a lower adhesive layer, a mechanical support layer of the adhesive and an illustrated layer having at least one printed pattern, the adhesive being applied to the outer surface of the vehicle;
  • a protective layer applied to the outer surface of the adhesive and the layer of colored paint applied to the outer surface of the vehicle.

Afin d'éliminer ces inconvénients, l'invention concerne une surface extérieure d'un véhicule de transport avec revêtement décoratif, celui-ci comprenant :

  • un adhésif décoratif constitué successivement d'une couche de colle inférieure, une couche de support mécanique de l'adhésif et une couche illustrée comportant au moins un motif imprimé, l'adhésif étant appliqué sur la surface extérieure du véhicule;
  • une couche de peinture colorée appliquée sur la surface extérieure du véhicule en dehors de la surface recouverte par l'adhésif, les surfaces extérieures de la couche de peinture et de l'adhésif étant continues et
  • une couche de protection appliquée sur les surfaces extérieures continues de la couche de peinture et de l'adhésif.
In order to eliminate these disadvantages, the invention relates to an outer surface of a transport vehicle with a decorative coating, the latter comprising:
  • a decorative adhesive successively consisting of a lower adhesive layer, a mechanical support layer of the adhesive and an illustrated layer comprising at least one printed pattern, the adhesive being applied to the outer surface of the vehicle;
  • a layer of colored paint applied to the outer surface of the vehicle outside the surface covered by the adhesive, the outer surfaces of the paint layer and the adhesive being continuous and
  • a protective layer applied to the continuous outer surfaces of the paint layer and the adhesive.

Grâce à l'invention, on dispose d'un revêtement esthétique ayant une grande durée de vie, l'adhésif étant protégé latéralement par la couche de peinture et, à l'extérieur, par la couche de protection. On parle de revêtement avec adhésif intégré.Thanks to the invention, there is an aesthetic coating having a long life, the adhesive being protected laterally by the paint layer and, outside, by the protective layer. We speak of coating with integrated adhesive.

De préférence, la couche de peinture possède la même épaisseur que l'adhésif.Preferably, the paint layer has the same thickness as the adhesive.

De préférence, l'adhésif possède une épaisseur comprise entre 20 et 40 micromètres ce qui permet de l'intégrer à une couche de peinture sans créer de surépaisseur dans le revêtement, ni de relief. Cela est avantageusement obtenu en diminuant l'épaisseur de la couche de support mécanique de l'adhésif, l'ensemble des éléments du revêtement participant au support de la couche illustrée, en particulier, la couche de peinture et la couche de protection.Preferably, the adhesive has a thickness of between 20 and 40 microns which allows to integrate it into a paint layer without creating extra thickness in the coating or relief. This is advantageously obtained by decreasing the thickness of the mechanical support layer of the adhesive, all the elements of the coating participating in the support of the illustrated layer, in particular, the paint layer and the protective layer.

De préférence, le revêtement possède une épaisseur comprise entre 50 et 80 micromètres, de préférence 70 micromètres. Cela permet avantageusement de décorer le véhicule de manière satisfaisante sans augmenter la masse du véhicule avec un revêtement épais et donc lourd.Preferably, the coating has a thickness of between 50 and 80 micrometers, preferably 70 micrometers. This advantageously allows to decorate the vehicle satisfactorily without increasing the mass of the vehicle with a thick and therefore heavy coating.

De manière avantageuse, une sous-couche de peinture est appliquée entre la surface extérieure du véhicule, d'une part, et l'adhésif décoratif et la couche de peinture, d'autre part.Advantageously, a sub-layer of paint is applied between the outer surface of the vehicle, on the one hand, and the decorative adhesive and the paint layer, on the other hand.

De préférence, la couche de support mécanique de l'adhésif comprend un film de peinture à l'état sec. Un tel support est simple à mettre en oeuvre et permet de renforcer la compatibilité avec la couche de vernis et la couche de peinture appliquée sur la surface extérieure du véhicule en dehors de la surface recouverte par l'adhésif. De préférence toujours, la couche de support mécanique de l'adhésif est constituée d'un film de peinture à l'état sec.Preferably, the mechanical support layer of the adhesive comprises a paint film in the dry state. Such a support is simple to implement and makes it possible to reinforce the compatibility with the layer of varnish and the layer of paint applied to the external surface of the vehicle outside the surface covered by the adhesive. Still preferably, the mechanical support layer of the adhesive consists of a paint film in the dry state.

De préférence encore, le film de peinture à l'état sec est formé à partir d'une peinture possédant les mêmes propriétés que la peinture de la couche de peinture colorée. En utilisant des peintures de même nature, la compatibilité de la couche de support avec la couche de vernis et la couche de peinture est renforcée améliorant la résistance du revêtement à l'usure comme au vieillissement.More preferably, the dry paint film is formed from a paint having the same properties as the paint of the colored paint layer. By using paints of the same nature, the compatibility of the support layer with the lacquer layer and the paint layer is reinforced, improving the resistance of the coating to wear and aging.

L'invention concerne également un procédé de décoration d'une surface extérieure d'un véhicule de transport dans lequel :

  • on applique un adhésif décoratif sur la surface extérieure du véhicule, l'adhésif étant constitué successivement d'une couche de colle inférieure, une couche de support mécanique de l'adhésif et une couche illustrée comportant au moins un motif imprimé ;
  • on applique une couche de peinture colorée sur ladite surface extérieure du véhicule en dehors de la surface recouverte par l'adhésif, les surfaces extérieures de la couche de peinture et de l'adhésif étant continues et
  • on applique une couche de protection sur les surfaces extérieures continues de la couche de peinture et de l'adhésif.
The invention also relates to a method of decorating an outer surface of a transport vehicle in which:
  • a decorative adhesive is applied to the outer surface of the vehicle, the adhesive being successively constituted by a lower adhesive layer, a mechanical support layer of the adhesive and an illustrated layer comprising at least one printed pattern;
  • a layer of colored paint is applied to said outer surface of the vehicle outside the surface covered by the adhesive, the outer surfaces of the paint layer and the adhesive being continuous and
  • a protective layer is applied to the continuous outer surfaces of the paint layer and the adhesive.

On obtient un revêtement décoratif de grande qualité et de grande durée de vie. De plus, son procédé d'obtention ne requiert qu'un nombre limité d'étapes qui sont simples à mettre en oeuvre.We obtain a decorative coating of great quality and long life. In addition, its method of obtaining only requires a limited number of steps that are simple to implement.

De préférence, on applique une couche de peinture sur la surface extérieure du véhicule préalablement à l'application de l'adhésif décoratif, des réserves étant ménagées dans la couche de peinture pour recevoir l'adhésif décoratif. Cela permet avantageusement de déposer l'adhésif dans les réserves ménagées dans la couche de peinture ce qui facilite le positionnement de l'adhésif.Preferably, a layer of paint is applied to the outer surface of the vehicle prior to the application of the decorative adhesive, reserves being formed in the paint layer to receive the decorative adhesive. This advantageously allows to deposit the adhesive in the reserves in the paint layer which facilitates the positioning of the adhesive.

De préférence encore, on applique une sous-couche de peinture sur la surface extérieure du véhicule préalablement à l'application de la couche de peinture et de l'adhésif.More preferably, an undercoat of paint is applied to the exterior surface of the vehicle prior to the application of the paint layer and the adhesive.

De préférence toujours, pour remplacer un ancien revêtement par un nouveau revêtement :

  • on élimine partiellement ou totalement la couche de protection de l'ancien revêtement, l'épaisseur de l'ancien revêtement étant constante après élimination,
  • on applique un nouvel adhésif décoratif sur la surface extérieure de l'ancien revêtement, l'adhésif étant constitué successivement d'une couche de colle inférieure, une couche de support mécanique de l'adhésif et une couche illustrée comportant au moins un nouveau motif imprimé ;
  • on applique une nouvelle couche de peinture colorée sur ladite surface extérieure de l'ancien revêtement en dehors de la surface recouverte par le nouvel adhésif, les surfaces extérieures de la nouvelle couche de peinture et du nouvel adhésif étant continues et
  • on applique une nouvelle couche de protection sur les surfaces extérieures continues de la nouvelle couche de peinture et du nouvel adhésif.
Preferably always, to replace an old coating with a new coating:
  • partially or completely eliminates the protective layer of the old coating, the thickness of the old coating being constant after elimination,
  • a new decorative adhesive is applied to the outer surface of the old coating, the adhesive successively consisting of a lower adhesive layer, a mechanical support layer of the adhesive and an illustrated layer comprising at least one new printed pattern. ;
  • a new layer of colored paint is applied to said outer surface of the old coating outside the surface covered by the new adhesive, the outer surfaces of the new paint layer and the new adhesive being continuous and
  • a new protective layer is applied to the continuous outer surfaces of the new paint coat and new adhesive.

Cette élimination partielle de l'ancien revêtement permet d'éviter d'utiliser des produits toxiques. La couche de protection est avantageusement éliminée par ponçage. Le nouveau revêtement est appliqué dans de bonnes conditions en raison de la continuité des surfaces de l'ancien adhésif et de l'ancienne couche de peinture.This partial removal of the old coating avoids the use of toxic products. The protective layer is advantageously removed by sanding. The new coating is applied in good conditions due to the continuity of the surfaces of the old adhesive and the old paint layer.

L'invention sera mieux comprise à l'aide du dessin annexé sur lequel :

  • la figure 1 représente une vue en coupe d'une surface extérieure de véhicule ferroviaire recouverte de peinture selon l'art antérieur;
  • la figure 2 représente une vue en coupe d'un adhésif de décoration selon l'art antérieur avec ses films de protection;
  • la figure 3 représente une vue en coupe de l'adhésif de la figure 2 appliqué sur la surface extérieure d'un véhicule ferroviaire ;
  • la figure 4 représente une vue en coupe d'un adhésif de décoration avec ses films de protection;
  • la figure 5A représente une vue en coupe d'un revêtement avec l'adhésif de la figure 4 appliqué sur la surface extérieure d'un véhicule ferroviaire avec son film de protection supérieur;
  • la figure 5B représente une vue de dessus de l'adhésif de la figure 5A appliqué sur la surface extérieure du véhicule ;
  • la figure 6A représente une vue en coupe du revêtement de la figure 5A après application d'une couche de peinture en dehors de la surface couverte par l'adhésif ;
  • la figure 6B représente une vue de dessus du revêtement de la figure 6A avec sa couche de peinture ;
  • la figure 7A représente une vue en coupe du revêtement de la figure 6A après retrait du film de protection supérieur de l'adhésif ;
  • la figure 7B représente une vue de dessus du revêtement de la figure 7A avec le motif imprimé de l'adhésif et
  • la figure 8 représente une vue en coupe du revêtement de la figure 7A après application d'une couche de vernis de protection.
The invention will be better understood with the aid of the appended drawing in which:
  • the figure 1 represents a sectional view of an outer surface of a railway vehicle covered with paint according to the prior art;
  • the figure 2 is a sectional view of a decorative adhesive according to the prior art with its protective films;
  • the figure 3 represents a sectional view of the adhesive of the figure 2 applied to the outer surface of a railway vehicle;
  • the figure 4 represents a sectional view of a decorative adhesive with its protective films;
  • the Figure 5A represents a sectional view of a coating with the adhesive of the figure 4 applied to the outer surface of a railway vehicle with its upper protective film;
  • the Figure 5B represents a top view of the adhesive of the Figure 5A applied to the outer surface of the vehicle;
  • the Figure 6A represents a sectional view of the coating of the Figure 5A after applying a layer of paint outside the surface covered by the adhesive;
  • the Figure 6B represents a top view of the coating of the Figure 6A with his coat of paint;
  • the Figure 7A represents a sectional view of the coating of the Figure 6A after removal of the upper protective film from the adhesive;
  • the Figure 7B represents a top view of the coating of the Figure 7A with the printed pattern of the adhesive and
  • the figure 8 represents a sectional view of the coating of the Figure 7A after applying a layer of protective varnish.

En référence à la figure 4, le revêtement comprend un adhésif 30 constitué d'une couche de colle inférieure 32, une couche 33 de support mécanique de l'adhésif et une couche 34 illustrée comportant au moins un motif imprimé. L'adhésif est protégé par un film de protection inférieur 31 et un film de protection supérieur 35.With reference to the figure 4 the coating comprises an adhesive 30 consisting of a lower adhesive layer 32, a mechanical support layer 33 of the adhesive and an illustrated layer 34 having at least one printed pattern. The adhesive is protected by a lower protective film 31 and an upper protective film 35.

Cet adhésif 30 présente comme particularité d'avoir une épaisseur très faible en utilisation, c'est à dire, lorsque les films de protection 31, 35 sont retirés de l'adhésif 30. L'épaisseur de l'adhésif varie entre 20 et 40 micromètres. Cela est réalisé en modifiant l'épaisseur des couches des adhésifs de l'art antérieur de manière à obtenir une tenue mécanique de l'adhésif la plus faible possible tout en permettant sa manipulation.This adhesive has the particularity of having a very low thickness in use, that is, when the protective films 31, 35 are removed from the adhesive 30. The thickness of the adhesive varies between 20 and 40 micrometers. This is achieved by modifying the thickness of the layers of the adhesives of the prior art so as to obtain the lowest possible mechanical strength of the adhesive while allowing its handling.

Les adhésifs de l'art antérieur sont utilisés traditionnellement en tant que tels. A cet effet, ils doivent posséder une tenue mécanique suffisante pour être déplacés, pliés, roulés, etc., tout en résistant aux agressions extérieures. Seuls des adhésifs épais sont disponibles dans le commerce, la somme des épaisseurs de la couche de colle inférieure, de la couche de support et de la couche illustrée d'un adhésif classique étant comprise entre 70 et 150 micromètres ce qui est trop épais pour être intégré à un revêtement.Adhesives of the prior art are traditionally used as such. For this purpose, they must have sufficient mechanical strength to be moved, folded, rolled, etc., while resisting external aggression. Only thick adhesives are commercially available, the sum of the thicknesses of the lower adhesive layer, the support layer and the illustrated layer of a conventional adhesive being between 70 and 150 micrometers which is too thick to be integrated in a coating.

Les adhésifs utilisés pour l'invention n'ont pas une fonction de tenue mécanique mais uniquement une fonction de support du motif imprimé. Ainsi, l'adhésif se présente sous la forme d'un film très fin, d'épaisseur comprise entre 20 et 40 micromètres, ne pouvant pas être utilisé en tant que tel.The adhesives used for the invention do not have a function of mechanical strength but only a support function of the printed pattern. Thus, the adhesive is presented in the form of a very thin film, with a thickness of between 20 and 40 microns, which can not be used as such.

Les films 31, 35 de protection amovibles de l'adhésif 30 sont réalisés en papier recouvert d'un adhésif et possèdent une épaisseur comprise entre 30 et 50 micromètres. La composition de ces films 31, 35 est connue de l'homme du métier, leur épaisseur étant supérieure aux films de protection des adhésifs de l'art antérieur de manière à conférer à l'adhésif, lorsqu'il est protégé, une meilleur tenue mécanique lors de son transport et de sa manipulation.The removable protective films 31, 35 of the adhesive 30 are made of paper coated with an adhesive and have a thickness of between 30 and 50 micrometers. The composition of these films 31, 35 is known to those skilled in the art, their thickness being greater than the protective films of the adhesives of the prior art so as to give the adhesive, when it is protected, a better hold mechanical during transport and handling.

La couche de colle 32 comprend de l'acrylique et possède une épaisseur comprise entre 10 et 20 micromètres. La composition de la colle 32 est connue de l'homme du métier. L'épaisseur de colle est inférieure à celle des adhésifs de l'art antérieur étant donné que la couche de colle 32 ne remplit pas une fonction de fixation définitive ou durable comme dans les adhésifs de l'art antérieur. La couche de colle 32, très fine, permet un positionnement simple de l'adhésif, la fixation définitive de l'adhésif étant achevée par d'autres moyens qui seront détaillés par la suite.The adhesive layer 32 comprises acrylic and has a thickness of between 10 and 20 microns. The composition of the glue 32 is known to those skilled in the art. The thickness of adhesive is lower than that of the adhesives of the prior art since the adhesive layer 32 does not fulfill a definitive or durable fastening function as in the adhesives of the prior art. The very thin layer of glue 32 allows a simple positioning of the adhesive, the final fixing of the adhesive being completed by other means which will be detailed later.

La couche 33 de support mécanique de l'adhésif 30 est réalisée en PVC et possède une épaisseur comprise entre 10 et 20 micromètres. Cette couche de support possède une épaisseur très inférieure à celle des adhésifs de l'art antérieur, son rôle étant uniquement de supporter le motif imprimé de l'adhésif.The layer 33 of mechanical support of the adhesive 30 is made of PVC and has a thickness of between 10 and 20 microns. This support layer has a much lower thickness than the adhesives of the prior art, its role being solely to support the printed pattern of the adhesive.

A titre de variante, la couche 33 de support mécanique de l'adhésif 30 comprend un film de peinture à l'état sec, c'est-à-dire un film solide, qui possède une épaisseur comprise entre 10 et 20 micromètres. Cette couche de support possède une épaisseur très inférieure à celle des adhésifs de l'art antérieur, son rôle étant, d'une part, de supporter le motif imprimé de l'adhésif et, d'autre part, d'assurer une compatibilité optimale entre une couche de protection 43 et une couche de peinture colorée 42 du revêtement qui seront présentées par la suite.Alternatively, the mechanical support layer 33 of the adhesive 30 comprises a dry paint film, i.e., a solid film, which has a thickness of between 10 and 20 microns. This support layer has a much lower thickness than that of the adhesives of the prior art, its role being, on the one hand, to support the printed pattern of the adhesive and, on the other hand, to ensure optimum compatibility between a protective layer 43 and a colored paint layer 42 of the coating which will be presented later.

Un film de peinture à l'état sec, tel que celui fabriqué par la société CORSO MAGENTA et connu sous sa désignation commerciale « Peinture à Poser ® », est conditionné traditionnellement sous forme de rouleaux. Pour former le film de peinture, une peinture est appliquée sur un support temporaire puis séchée. De préférence, la peinture utilisée est de même nature que celle de la couche de peinture colorée 42 qui sera présentée par la suite. Autrement dit, les peintures de la couche de support 33 et de la couche de peinture 42 possèdent des propriétés analogues et sont compatibles l'une avec l'autre ce qui permet leur mise en contact. Le film de peinture séché est de préférence imprimé de manière à comprendre un motif décoratif, par exemple, par impression d'image numérique, sur une surface pouvant être plane ou en relief.A dry paint film, such as that manufactured by the company CORSO MAGENTA and known under the trade name "Paint Poser ®", is traditionally packaged in the form of rolls. To form the paint film, a paint is applied to a temporary support and then dried. Preferably, the paint used is of the same nature as that of the colored paint layer 42 which will be presented later. In other words, the paints of the support layer 33 and of the paint layer 42 have similar properties and are compatible with each other which allows them to come into contact. The dried paint film is preferably printed to include a decorative pattern, for example, by digital image printing, on a surface that can be flat or raised.

Le film séché est ensuite collé à des protections temporaires pour former un adhésif. L'adhésif avec son film de peinture à l'état sec est ensuite roulé pour former un rouleau ce qui améliore son conditionnement et facilite son transport.The dried film is then bonded to temporary shields to form an adhesive. The adhesive with its paint film in the dry state is then rolled to form a roll which improves its packaging and facilitates its transport.

Pour l'utiliser, il suffit de retirer la protection temporaire afin d'appliquer l'adhésif sur la surface à recouvrir. Un adhésif avec une couche de support comportant un film de peinture à l'état sec présente l'avantage de ne pas couler ce qui limite le risque de salissure. En outre, le film de peinture à l'état sec ne comporte avantageusement pas de composé organique volatile (COV) ce qui est avantageux pour l'environnement. Enfin, une couche de support 33 à base de peinture permet de renforcer la compatibilité avec la couche de vernis 43 et la couche de peinture 42 appliquée sur la surface extérieure du véhicule en dehors de la surface recouverte par l'adhésif.To use it, simply remove the temporary protection to apply the adhesive on the surface to be covered. An adhesive with a support layer comprising a film of paint in the dry state has the advantage of not sinking which limits the risk of soiling. In addition, the dry paint film advantageously has no volatile organic compound (VOC) which is advantageous for the environment. Finally, a support layer 33 based on paint makes it possible to reinforce the compatibility with the layer of varnish 43 and the layer of paint 42 applied to the outer surface of the vehicle outside the surface covered by the adhesive.

La couche illustrée 34 de l'adhésif 30 est réalisée en sérigraphie ou encre d'impression et possède une épaisseur comprise entre 5 et 15 micromètres. Cette couche 34 est réalisée par un procédé d'impression d'image numérique (jet d'encre, laser, électrographie, etc.) ce qui permet une grande liberté dans la conception du motif imprimé, aussi bien en termes de couleurs, de formes, de motifs que de textures. Il va de soi que d'autres procédés d'impression pourraient également convenir, par exemple, la sérigraphie, l'offset, etc.The illustrated layer 34 of the adhesive 30 is made in serigraphy or printing ink and has a thickness of between 5 and 15 micrometers. This layer 34 is made by a digital image printing process (inkjet, laser, electrography, etc.) which allows great freedom in the design of the printed pattern, both in terms of colors, shapes , patterns that textures. It goes without saying that other printing processes could also be suitable, for example, screen printing, offset printing, etc.

A titre d'exemple, la couche illustrée 34 comprend un motif d'une fleur de différentes couleurs, le motif étant représenté uniquement en noir sur la figure 7B.By way of example, the illustrated layer 34 comprises a pattern of a flower of different colors, the pattern being represented only in black on the Figure 7B .

L'adhésif 30 peut comprendre avantageusement des évidements afin que la surface sur laquelle est appliqué l'adhésif soit visible, ici la sous-couche de peinture.The adhesive 30 may advantageously comprise recesses so that the surface on which the adhesive is applied is visible, here the undercoat of paint.

L'adhésif décoratif 30 est intégré dans le revêtement pour la surface extérieure d'un véhicule de transport comme représenté sur la figure 8.The decorative adhesive 30 is integrated in the coating for the outer surface of a transport vehicle as shown in FIG. figure 8 .

Avant toute décoration du véhicule, sa surface extérieure peut être recouverte d'une couche anti-corrosion de manière à la protéger. Il va de soi que d'autres traitements peuvent être appliqués sur la surface extérieure du véhicule.Before any decoration of the vehicle, its outer surface may be covered with an anti-corrosion layer so as to protect it. It goes without saying that other treatments can be applied to the outer surface of the vehicle.

En référence à la figure 8, le revêtement 40 comprend une sous-couche de peinture 41, ou aprêt, appliquée sur la surface extérieure du véhicule, l'adhésif décoratif 30 étant appliqué sur la sous-couche de peinture 41. Lorsque l'adhésif 30 comprend des évidements, la sous-couche de peinture 41 est visible à travers lesdits évidements. Dans le revêtement 40, l'adhésif 30 est « nu » et ne comprend pas de films de protection 31, 35.With reference to the figure 8 , the coating 40 comprises a sub-layer of paint 41, or aprêt, applied on the outer surface of the vehicle, the decorative adhesive 30 being applied to the undercoat of paint 41. When the adhesive 30 comprises recesses, the undercoat of paint 41 is visible through said recesses. In the coating 40, the adhesive 30 is "bare" and does not include protective films 31, 35.

Le revêtement 40 comprend également une couche de peinture colorée 42 appliquée sur ladite sous-couche 41 en dehors de la surface recouverte par l'adhésif 30, les surfaces extérieures de la couche de peinture 42 et de l'adhésif 30 étant continues. Ainsi, il n'existe pas de relief à la surface du revêtement 40, l'adhésif 30 étant intégré dans la couche de peinture 42 ce qui permet d'empêcher son déplacement latéral dans le revêtement 40. Dans le cas présent, la couche de peinture colorée 42 et l'adhésif 30 ont la même épaisseur, comprise entre 20 et 40 micromètres.The coating 40 also includes a layer of colored paint 42 applied to said underlayer 41 outside the surface covered by the adhesive 30, the outer surfaces of the paint layer 42 and the adhesive 30 being continuous. Thus, there is no relief on the surface of the coating 40, the adhesive 30 being integrated into the paint layer 42 which makes it possible to prevent its lateral displacement in the coating 40. In this case, the colored paint 42 and the adhesive 30 have the same thickness, between 20 and 40 micrometers.

Le revêtement 40 comprend en outre une couche de protection, ici une couche de vernis 43 appliquée sur les surfaces extérieures continues de la couche de peinture 42 et de l'adhésif 30. Le vernis 43 possède une épaisseur comprise entre 40 et 60 micromètres, sa fonction principale étant de protéger la couche de peinture 42 et l'adhésif 30 à l'encontre des attaques extérieures telles que la pluie, la grêle ou, dans un autre domaine, les graffitis. Le revêtement 40 permet d'intégrer l'adhésif 30 dans la couche de peinture 42 en raison de la faible épaisseur de l'adhésif 30.The coating 40 further comprises a protective layer, here a layer of varnish 43 applied to the continuous outer surfaces of the paint layer 42 and the adhesive 30. The varnish 43 has a thickness of between 40 and 60 microns, its main function is to protect the paint layer 42 and the adhesive 30 against external attacks such as rain, hail or, in another area, graffiti. The coating 40 makes it possible to integrate the adhesive 30 in the paint layer 42 because of the small thickness of the adhesive 30.

Bien que l'adhésif 30 possède une couche de colle 32 et une couche de support 33 de faible épaisseur, cela ne porte pas préjudice au revêtement 40 étant donné que l'adhésif 30 est maintenu latéralement par la couche de peinture 42 et protégé verticalement par la couche de vernis 43. Les déplacements verticaux et horizontaux de l'adhésif 30 sont ainsi empêchés. La tenue mécanique de l'adhésif 30 n'est jamais sollicitée car ce dernier est protégé aussi bien horizontalement que verticalement.Although the adhesive 30 has an adhesive layer 32 and a thin support layer 33, this is not detrimental to the coating 40 since the adhesive 30 is held laterally by the paint layer 42 and protected vertically by the varnish layer 43. The vertical and horizontal displacements of the adhesive 30 are thus prevented. The mechanical strength of the adhesive 30 is never stressed because the latter is protected both horizontally and vertically.

Le revêtement 40 possède une épaisseur faible comprise entre 25 et 60 micromètres ce qui correspond à l'épaisseur d'un revêtement classique à base de peinture. Le revêtement possède ainsi une masse faible ce qui est avantageux.The coating 40 has a small thickness of between 25 and 60 micrometers which corresponds to the thickness of a conventional coating based paint. The coating thus has a low mass which is advantageous.

On obtient un revêtement décoratif 40 ayant :

  • une durée de vie importante, comparable à celle des revêtements constitués de peinture, l'adhésif 30 étant totalement protégé ;
  • un aspect esthétique, les motifs étant de création libre, le véhicule de transport pouvant être décoré avec des logos ou des photos numériques et
  • une finition de qualité, la surface du revêtement étant parfaitement lisse, dépourvue de discontinuité, ce qui est agréable à la vue comme au toucher.
We obtain a decorative coating 40 having:
  • a long life, comparable to that of coatings consisting of paint, the adhesive 30 being completely protected;
  • an aesthetic aspect, the motifs being of free creation, the transport vehicle can be decorated with logos or digital photos and
  • a quality finish, the surface of the coating being perfectly smooth, devoid of discontinuity, which is pleasant to the sight as to the touch.

De manière préférée, la peinture du film de peinture à l'état sec est de même nature que la peinture de la couche de peinture 42 appliquée en dehors de la surface recouverte par l'adhésif 30, par exemple, une peinture époxydique ou polyuréthanne. De préférence, le même type de pigments de peinture est utilisé ce qui permet de rendre totalement compatible la couche de support 33 avec, d'une part, la couche de vernis 43 et, d'autre part, la couche de peinture 42. En effet, la peinture de la couche de peinture 42 est choisie pour être compatible avec le vernis 43. Pour assurer la compatibilité de l'adhésif 30, on utilise comme couche de support de l'adhésif un film de peinture formé à partir d'une peinture ayant les mêmes propriétés que celle de la couche de peinture 42. Grâce à une compatibilité accrue, le revêtement ainsi formé possède une meilleure résistance à l'usure et au vieillissement.Preferably, the painting of the paint film in the dry state is of the same nature as the painting of the paint layer 42 applied outside the surface covered by the adhesive 30, for example, an epoxy or polyurethane paint. Preferably, the same type of paint pigments is used which makes it possible to make the support layer 33 completely compatible with, on the one hand, the varnish layer 43 and, on the other hand, the paint layer 42. In effect, the paint of the paint layer 42 is chosen to be compatible with the varnish 43. To ensure the compatibility of the adhesive 30, the adhesive support layer used is a paint film formed from an adhesive. paint having the same properties as that of the paint layer 42. Due to increased compatibility, the coating thus formed has a better resistance to wear and aging.

L'invention concerne également un procédé de décoration d'un véhicule de transport dans lequel :

  • on applique une sous-couche de peinture 41 sur la surface extérieure 1 du véhicule, cette étape étant réalisée au moyen d'un pistolet à peinture ;
  • on retire le film de protection inférieur 31 de l'adhésif 30 et on applique la surface collante 32 de l'adhésif 30 sur la sous-couche 41 comme représenté sur les figures 5A et 5B, l'adhésif 30 étant toujours recouvert de son film de protection supérieur 35 ;
  • on applique une couche de peinture colorée 42 sur ladite sous-couche 41 en dehors de la surface recouverte par l'adhésif 30, le film de protection supérieur de l'adhésif 35 protégeant le motif décoratif 34 à l'encontre de bavures potentielles lors de l'application de la couche de peinture 42 ;
  • on applique la peinture de manière à ce que les surfaces extérieures de la couche de peinture 42 et de l'adhésif 30 soient continues,
  • on retire le film de protection supérieur de l'adhésif 35 de manière à dévoiler le motif de l'adhésif 30 et
  • on applique une couche de protection, ici une couche vernis 43 sur les surfaces extérieures continues de la couche de peinture 42 et de l'adhésif 30.
The invention also relates to a method of decorating a transport vehicle in which:
  • an undercoat of paint 41 is applied to the outer surface 1 of the vehicle, this step being carried out by means of a spray gun;
  • the lower protective film 31 is removed from the adhesive 30 and the adhesive surface 32 of the adhesive 30 is applied to the underlayer 41 as shown in FIGS. Figures 5A and 5B the adhesive 30 always being covered with its upper protective film 35;
  • a layer of colored paint 42 is applied to said underlayer 41 outside the surface covered by the adhesive 30, the upper protective film of the adhesive 35 protecting the decorative pattern 34 against potential burrs during the application of the paint layer 42;
  • the paint is applied so that the outer surfaces of the paint layer 42 and the adhesive 30 are continuous,
  • the upper protective film is removed from the adhesive 35 so as to reveal the pattern of the adhesive 30 and
  • a protective layer is applied, here a lacquer layer 43 on the continuous outer surfaces of the paint layer 42 and the adhesive 30.

Il va de soi que l'adhésif 30 et la couche de peinture 42 pourraient être directement appliqués sur la surface extérieure du véhicule, sans application préalable d'une sous-couche de peinture 41.It goes without saying that the adhesive 30 and the paint layer 42 could be directly applied to the outer surface of the vehicle without prior application of a paint undercoat 41.

Il a été ici décrit un procédé dans lequel l'application de l'adhésif 30 est préalable à l'application de la peinture, la couche de peinture 42 étant appliquée autour de l'adhésif 30. Il va de soi que l'application de la peinture 42 pourrait être préalable à l'application de l'adhésif 30, des réserves étant alors ménagées dans la couche de peinture 42 pour recevoir ledit adhésif 30. Les réserves permettent avantageusement de faciliter la mise en place de l'adhésif, ce dernier étant appliqué avec précision en raison du guidage réalisé par les parois des réserves.It has been described here a method in which the application of the adhesive 30 is prior to the application of the paint, the paint layer 42 being applied around the adhesive 30. It goes without saying that the application of the paint 42 could be prior to the application of the adhesive 30, reserves being then formed in the paint layer 42 to receive said adhesive 30. The reserves advantageously allow to facilitate the introduction of the adhesive, the latter being applied with precision because of the guiding made by the walls of the reserves.

De manière avantageuse, on peut mettre en oeuvre ce procédé de décoration de manière successive sur une même surface extérieure d'un véhicule de transport sans nécessiter le retrait total du revêtement 40.Advantageously, this decorative method can be implemented successively on the same outer surface of a transport vehicle without requiring the total removal of the coating 40.

En effet, lorsque l'on souhaite modifier le motif de décoration, si ce dernier est usé ou démodé, il suffit de « poncer » la couche de vernis 43 par une méthode de ponçage ou décapage connue afin d'obtenir une épaisseur de revêtement réduite, inférieure à celle d'un revêtement avec sa couche de vernis, et dont la surface extérieure est lisse. De préférence, on retire entre 50% et 100% de l'épaisseur de vernis. On dit que le vernis est dépoli.Indeed, when it is desired to modify the decoration pattern, if the latter is worn or old-fashioned, it is sufficient to "sand" the varnish layer 43 by a known sanding or pickling method in order to obtain a reduced coating thickness. , less than that of a coating with its layer of varnish, and whose outer surface is smooth. Preferably, between 50% and 100% of the varnish thickness is removed. It is said that the varnish is frosted.

Sur la surface extérieure poncée de l'ancien revêtement, on applique un nouvel adhésif et une nouvelle couche de peinture conformément à l'invention et on recouvre d'une nouvelle couche de vernis les surfaces extérieures continues de la nouvelle couche de peinture et du nouvel adhésif. De préférence, on peut appliquer de nouveau une sous-couche de peinture sur la surface extérieure polie de l'ancien revêtement.On the sanded external surface of the old coating, a new adhesive and a new paint layer according to the invention are applied and a new layer of varnish is applied to the continuous outer surfaces of the new paint layer and the new one. adhesive. Preferably, an undercoat of paint can be applied again to the polished outer surface of the old coating.

On obtient ainsi un nouveau revêtement de qualité, sans nécessiter de procédé de nettoyage long, difficile à mettre en oeuvre et nécessitant l'emploi de produits toxiques.This provides a new quality coating, without requiring a long cleaning process, difficult to implement and requiring the use of toxic products.

Il va de soi que la méthode de renouvellement de la décoration pourrait également être mise en oeuvre sans décapage préalable, directement sur la couche de vernis de l'ancien revêtement.It goes without saying that the method of renewal of the decoration could also be implemented without prior stripping, directly on the varnish layer of the old coating.

L'invention a été décrite pour un véhicule ferroviaire mais il va de soi que l'invention s'applique également à un véhicule maritime, routier ou aérien.The invention has been described for a railway vehicle, but it goes without saying that the invention also applies to a maritime, road or air vehicle.

Claims (9)

  1. Outer surface (1) of a transport vehicle having a decorative coating (40), comprising:
    - a decorative adhesive (30) successively consisting of a lower glue layer (32), a mechanical support layer (33) for the adhesive and an illustrated layer (34) comprising at least one printed pattern, the adhesive (30) being applied to the outer surface (1) of the vehicle;
    - a coloured paint layer (42) applied to the outer surface (1) of the vehicle outside the surface covered by the adhesive (30), the outer surfaces of the paint layer (42) and of the adhesive (30) being continuous, and
    - a protective layer (43) applied to the continuous outer surfaces of the paint layer (42) and of the adhesive (30).
  2. Outer surface (1) of a transport vehicle according to claim 1, wherein the adhesive has a thickness of between 20 and 40 micrometres.
  3. Outer surface (1) of a transport vehicle according to either claim 1 or claim 2, wherein the protective layer is a varnish layer (43).
  4. Outer surface (1) of a transport vehicle according to any of claims 1 to 3, wherein a paint underlayer (4) is applied between the outer surface (1) of the vehicle, on the one hand, and the decorative adhesive (30) and the paint layer (42), on the other hand.
  5. Outer surface (1) of a transport vehicle according to any of claims 1 to 4, wherein the mechanical support layer (33) for the adhesive comprises a paint film in the dry state.
  6. Outer surface (1) of a transport vehicle according to claim 5,
    wherein the paint film in the dry state is formed from a paint having the same properties as the paint of the coloured paint layer (42).
  7. Method for decorating an outer surface (1) of a transport vehicle, wherein:
    - a coloured paint layer (42) is applied to said outer surface (1) of the vehicle and recesses are made in the paint layer to receive a decorative adhesive (30),
    - a decorative adhesive is applied to the outer surface (1) of the vehicle in the recesses made in the paint layer, the adhesive (30) successively consisting of a lower glue layer (32), a mechanical support layer for the adhesive and an illustrated layer (34) comprising at least one printed pattern; the external surfaces of the paint layer (42) and of the adhesive (30) being continuous;
    - a protective layer (43) is applied to the continuous outer surfaces of the paint layer (42) and of the adhesive (30).
  8. Method according to claim 7, wherein a paint underlayer (41) is applied to the outer surface (1) of the vehicle before the application of the paint layer (42) and the adhesive (30).
  9. Method according to either claim 7 or claim 8, wherein, in order to replace an old coating with an new coating:
    - the protective layer of the old coating is partially or completely removed, the thickness of the old coating being constant after removal,
    - a new decorative adhesive is applied to the outer surface of the old coating, the adhesive successively consisting of a lower glue layer, a mechanical support layer for the adhesive and an illustrated layer comprising at least one new printed pattern;
    - a new coloured paint layer is applied to said outer surface of the old coating outside the surface covered by the new adhesive, the outer surfaces of the new paint layer and of the new adhesive being continuous, and
    - a new protective layer is applied to the continuous outer surfaces of the new paint layer and of the new adhesive.
EP10771160.8A 2009-09-22 2010-09-17 Decorative coating with integrated sticker for a transport vehicle Active EP2480419B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0956529A FR2950299B1 (en) 2009-09-22 2009-09-22 DECORATIVE COATING WITH INTEGRATED ADHESIVE FOR TRANSPORT VEHICLE
PCT/FR2010/051934 WO2011036382A1 (en) 2009-09-22 2010-09-17 Decorative coating, with built-in adhesive, for a transport vehicle

Publications (2)

Publication Number Publication Date
EP2480419A1 EP2480419A1 (en) 2012-08-01
EP2480419B1 true EP2480419B1 (en) 2013-07-17

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ID=42122860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10771160.8A Active EP2480419B1 (en) 2009-09-22 2010-09-17 Decorative coating with integrated sticker for a transport vehicle

Country Status (7)

Country Link
US (1) US20120234471A1 (en)
EP (1) EP2480419B1 (en)
AR (1) AR078426A1 (en)
ES (1) ES2430814T3 (en)
FR (1) FR2950299B1 (en)
SA (1) SA110310717B1 (en)
WO (1) WO2011036382A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921755A (en) * 1988-03-23 1990-05-01 Eastman Kodak Company Coating composition and coated article
US5955204A (en) * 1995-08-31 1999-09-21 Nissha Printing Co., Ltd. Transfer material and transfer product
US20040161564A1 (en) * 2003-02-14 2004-08-19 Truog Keith L. Dry paint transfer laminate
US20040175551A1 (en) * 2003-03-04 2004-09-09 Ford Motor Company Wet-on-wet two-tone painting
CA2538808C (en) * 2003-09-30 2011-04-19 The Boeing Company Applique
US7943197B2 (en) * 2004-01-20 2011-05-17 E.I. Du Pont De Nemours And Company Process for producing two-tone coated substrates
US20070036929A1 (en) * 2005-08-09 2007-02-15 The Boeing Company Thin film applique

Also Published As

Publication number Publication date
SA110310717B1 (en) 2014-04-08
EP2480419A1 (en) 2012-08-01
FR2950299A1 (en) 2011-03-25
AR078426A1 (en) 2011-11-09
WO2011036382A1 (en) 2011-03-31
FR2950299B1 (en) 2011-10-07
ES2430814T3 (en) 2013-11-21
US20120234471A1 (en) 2012-09-20

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