Classifications

• • 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
  • B44C1/26—Inlaying with ornamental structures, e.g. niello work, tarsia work
• • 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
  • B44C1/04—Producing precipitations

Definitions

• the present invention relates to a method of preparing a decorative article obtained from a prepared support to allow the user to add to it and in particular colors and thus to obtain a finished decorative article.
• drawings have been known for a very long time to be colored, in particular for teaching children to master colors. These products are generally on drawing paper or neighboring materials (cardboard, Bristol board or others).
• a colored decorative metal panel in which concave parts are etched, according to a desired design, in the surface of a metal plate, a layer synthetic resin is electrically deposited on the surface of the concave parts and a desired pattern is transcribed, by sublimation, on the synthetic resin layer, using sublimable dyes.
• the present invention aims to provide a method allowing the user, even not particularly gifted for drawing and painting, to very easily achieve, by very simple means, decorative articles of the most beautiful effect.
• this process for preparing a decorative article obtained from a support having a surface of metal, ceramic product or plastic which is carefully cleaned in a first step is characterized in that applies to the support, during a second step, according to contours and / or predetermined surfaces corresponding to a decorative pattern, a partitioning in a material projecting from said surface, and is applied, in the free cells delimited by the protruding partitions, in a next step, colors exhibiting good adhesion with said surface of the support and poor adhesion with the partitioning material.
• the present invention relates to supports having a flat surface or not intended to receive a decoration, a surface generally in the form of a plate but which can be made of very diverse materials. like metals or plastics, on which a certain number of zones have been shown having received a design defined by contours and / or surfaces, the user being able to bring inside these contours and outside these surfaces colors of his choice.
• the supports can be opaque, translucent or transparent, which makes it possible to obtain products themselves which are extremely diverse. The methods of manufacturing these supports ready for coloring make it possible to implement techniques which are sometimes difficult to use for a non-specialized person.
• partitioning can be carried out, defining these contours and surfaces, by printing, screen printing, engraving, bonding and chemical cutting processes, by vacuum metallization, electroplating on conductive ink or by cathode spraying. which allow the realization of printed circuits. It is essentially a question of depositing, on the surfaces or along the desired contours, a metal layer having a sufficient thickness to ensure a sort of "partitioned" in the free spaces or cells, to which the chosen colors are then added, by selecting the various components so that the colors adhere well to the support and little or no to the added layer constituting the partition.
• the support is a transparent plastic material, such as polymethyl methacrylate, to have contours and a few opaque metallic surfaces, which makes it possible to add a certain number of colors to the parts which remain transparent and to obtain a final product with the general appearance of a stained glass window.
• an adequate solvent can be used, which may for example be water or an alcohol ethyl or methyl, depending on the nature of the colors used and the nature of supports, since obviously it is a question of not degrading the support, in particular in the case of plastic that should of course not be dissolved.
• the first step of the process consists in starting from a surface to be treated; as has been pointed out, this surface may be, according to the preferred embodiments of the invention, metal or plastic.
• the surface can be flat or not and it must be perfectly cleaned and free from dust or dirt, the main thing being that the process used makes it possible to ensure the printing intended according to the present invention.
• the second step consists in placing, in front of the base surface, by any suitable means known to those skilled in the art, a mask or stencil leaving clear the contours or the surfaces which it is desired to cover with a deposit.
• the third step of the process consists in carrying out this deposit.
• vacuum metallization which is particularly suitable for coating surfaces of metal, glass, ceramic, plastic material or the like.
• any body is capable of receiving such metallization whether it is conductive or insulating, on the condition, however, that its own vapor pressure is low enough that it can withstand a vacuum. pushed enough without causing sublimation or degassing.
• thermo-evaporation a mass of the metal to be deposited being placed in the vacuum enclosure generally about thirty centimeters from the surface to be covered, the mask or the stencil being interposed between the two; if the metal or generally the material to be deposited is heated by the Joule effect, there is thermo-evaporation and relatively regular deposition of said material on the surface to be coated in the areas left free by the mask or the stencil. It is obvious that the mask or stencil must also have a vapor pressure lower than the pressure at which we are working to avoid degassing or sublimation. It is thus very easy to deposit gold, silver, aluminum, copper or different alloys in a few seconds.
• vacuum metallization can be replaced by metallization or spray coating, by electroplating on conductive ink, by printing and in particular by the numerous methods using masks or stencils and making it possible to cover, in the areas left free, the apparent surface of the support. It is of course advantageous, for the rest of the operations, for the deposit to be particularly resistant.
• epoxy resins are generally considered to have good adhesion to metals. They are therefore particularly suitable for receiving metallic deposits; there are in particular plates or other surfaces in semi-translucent epoxy resins which are particularly suitable, in particular for receiving copper-tin alloys.
• ceramic supports such as, for example, stoneware or terracotta, glazed or not, but also on glass which is particularly suitable in the case of the present invention. .
• the fourth step of the process consists, for the user, in bringing, in the areas he wishes, the color or colors, by any conventional means using colored materials such as paints, inks, varnishes, enamels to cold or hot (it is obvious that in the case of hot enamelling, it is necessary to take into account the working temperature in the choice of the support and the deposit carried out previously, to avoid any degradation with heat).
• colors generally based on glycerophthalic resins.
• ceramic supports there are suitable colors generally also based on glycerophthalic resin.
• inks or varnish based on vinyl resins most often polyvinyl chloride, which results in a semi-translucent and very shiny appearance.
• varnishes are generally based on cyclohexanone and betacetonic alcohol (also called diacetone-alcohol).
• Other types of varnish can be used, in particular those based on acrylic resins which also give brilliant and semi-translucent or translucent colorings depending on the dilutions.
• the last stage of the process consists in eliminating, on the surfaces coated by means of the second stage, the overflows or the smearing of colors.
• solvents such as ethanol or methanol can also be used.
• methanol to ethanol.
• the colors can be applied by any suitable means: by brush, with a pad, by spraying, in particular with a stencil or mask, by screen printing, or even, as mentioned above, if the partitioning is sufficiently salient with respect to the support. , by casting on the latter, kept horizontal, in the cells of the partitioning.
• an aluminum plate 0.4 to 1 mm thick is glued to the press, for example using structural adhesives.
• the parts which will constitute the partitioning are covered with a protective mask, for example, by screen printing.
• a protective mask for example, by screen printing.
• the parts discovered by any conventional reagent to obtain a chemical cutting which, after elimination of the mask in a fourth step, gives the surface of the partitioned support, ready to receive the colors, in a fifth step and by any suitable means, such as those mentioned in Example 1.
• the partitions are cleaned of any burrs or any color overflow by one of the means mentioned in Example 1.

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Family Applications (1)

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Cited By (1)

Citations (7)

• 1990
  • 1990-02-28 FR FR9002519A patent/FR2658756B1/fr not_active Expired - Fee Related
• 1991
  • 1991-02-28 EP EP91400556A patent/EP0447289A1/de not_active Withdrawn

Patent Citations (7)

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