Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
  • B44D2/00—Special techniques in artistic painting or drawing, e.g. oil painting, water painting, pastel painting, relief painting
• • 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
  • B44C1/20—Applying plastic materials and superficially modelling the surface of these materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
  • B44C3/04—Modelling plastic materials, e.g. clay
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
  • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F21/00—Implements for finishing work on buildings
  • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
  • E04F21/04—Patterns or templates; Jointing rulers
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F21/00—Implements for finishing work on buildings
  • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
  • E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels

Definitions

• the present invention relates to a process for producing plaster with decorative patterns and to the tools enabling the process to be carried out.
• the object of the invention is therefore to propose a process for producing plaster with decorative patterns making it possible to have patterns that are durable over time, while retaining good waterproofing properties for the surface of the dwelling or of the interior. building covered with such a motif.
• the method consists in - depositing a layer of plaster on the surface to be coated;
• the step of removing the coating with the tool is carried out between 30 and 60 minutes after the laying of the first layer.
• the coatings constituting each part of the pattern are prepared at the same time.
• the colored coating is prepared after removal of the coating layer in the desired locations and this colored coating is added with a setting accelerator
• Another object of the invention is to propose tools allowing the implementation of the method.
• the tool for removing the coating layer according to the patterns consists of a knife, the blade of which forms, with a flat surface serving as a bearing surface on a tool guide, an arch.
• the arch has a trapezoidal shape.
• the arch has an elliptical shape.
• the arch has a semi-circular or U-shaped shape.
• the blade has, in a direction perpendicular to the arch shape, at least one bevel (b) to allow the ejection of the coating.
• the blade has, according to the faces of the arch, a slight draft (a) which makes it possible to avoid stuffing of the coating.
• the tool guide consists for rectilinear reasons of a rule formed by two spaced U-shaped profiles, of a width corresponding to the width of the arch of the knife, by at least two spacers made integral with the ends of U-profiles.
• the height of the arch is less than or equal to the sum of the height of the profile and the thickness of the coating.
• the tool guide comprises on the faces of the U-shaped profiles oriented opposite the splinter-proof lips.
• the tool guide consists of a circular ring formed by two U-shaped profiles of circular shape and connected together by at least two spacers.
• the tool guide consists of a compass, one of the ends of which includes a device allowing the knife to be fixed.
• FIG. 1A shows a perspective view of the tool forming the knife for removing the coating and the tool guide according to an alternative embodiment
• FIG. 1B shows a view of the tool associated with a section along BB of the tool guide
• FIG. 1C shows a sectional view along CC of the tool
• FIG. 2 shows a front view of a facade coated with a coating bearing a pattern using the method of the invention
• FIG. 3 is a sectional view of the same facade.
• the process implemented consists in depositing on the facade of the house or of the rough masonry building (6) a layer of plaster (3) of the desired color. Then using a tool, the description of which will be made later, remove part of the coating applied after having waited sufficient time to ensure a start of setting.
• the time to ensure setting start will be, for example, of the order of 30 to 60 minutes depending on the climatic conditions and the nature of the support (6).
• the coating is removed completely or partially at the places which must support the pattern and according to a geometry given by the tool guide.
• a rectangular pattern can be made, such as that shown in FIG. 2 and comprising two triangles whose vertices meet at the center of the rectangle.
• a second coating of the same kind is deposited before a mixture of dye has been mixed.
• the dye will be the desired color for the pattern.
• the surplus plaster of different tint is removed over the whole of the total surface using a scraper trowel. A coated surface is thus obtained with two coatings of different color deposited according to the previously traced pattern.
• the colored parts (40, 41, 42, 43) are colored in the mass and ensure with the non-colored parts a perfect grip guaranteeing good impermeability of the coated surface. Since the still fresh coating has been reworked, the problems of shrinking the second colored coating with respect to the first are eliminated.
• the tools for forming the patterns can also be used to, for example, decorate the surface with grooves or grooves highlighting the colored patterns. To do this, after coating the surface (3) and waiting for a certain setting time, the user will use the coating removal tool to form the grooves (51, 50, 52, 53) surrounding for example the reason. This groove will have a section corresponding to that of the knife intended to remove the product. It is also possible to make this groove in an area (40, 41, 42, 43) coated with a different color to obtain that these areas of different color are set back from the first coating layer (3).
• the groove (51, 50) has a U shape, which suggests that the knife may also have a U shape.
• the edges of the cut are vertical, which shows that a square section knife was used.
• the colored coating can be prepared just before depositing it in the surfaces (40, 41, 42, 43) where the coating (3) previously deposited has been removed after a setting time of 30 to 60 minutes and in this case, in addition to the dye, a setting accelerator will be added to the colored coating deposited second.
• Another possibility is to prepare the two differently colored plasters at the same time, so that they are at the same setting stage when the second plaster is placed in the recessed parts of the first plaster constituting the patterns to be colored.
• the tools used to implement the method consist on the one hand of a knife (1) for removing the coating and on the other hand of a tool guide (2) allowing the knife to be guided during its movement.
• the knife consists of a horizontal support surface (10).
• a blade (11) is made integral with this surface (10).
• This blade (11) has a shape, for example, trapezoidal, or elliptical, or semicircular, or parallelepipedic, or in dovetail, or in the form of U or in the form of V, or, as shown in the Figure 1B, in the shape of a trapezoid extending in place of the small base by a rounded shape, or any other shape that could be considered.
• the blade (11) has, as shown in Figure 1C, a bevel shape forming an angle (b) on each leading edge of the knife.
• the inner surfaces (111) of the edge of the blade (11) are inclined relative to the outer surface (113) of the blade to form the bevel. These inclined surfaces (111) extend towards the center of the blade by a flat portion (112). This bevel allows the ejection of the plaster rod cut by the blade.
• the leading edges (114) of the blade are included in a plane which forms an angle relief (a) with the plane perpendicular to the bearing surface (10). This draft prevents the filling of the coating.
• On the bearing surface (10) is welded an angle iron (12).
• a handle (13) is made integral with this angle (12) by one end and is provided at its other end with a handle (14) to allow the user to move the tool whose blade (11) will cut and remove the coating along the curve of the tool guide (2) on which the tool (1) rests.
• the tool guide (2) consists for the rectilinear forms of two U-shaped profiles (20, 21) connected at least at their ends by a spacer (22), respectively (23), in the form of an L-shaped angle. These two profiles (20, 21) are spaced at least a width (1) corresponding to the width of the base of the arch (11) formed by the blade of the knife.
• the blade (11) of the tool has a trapezoidal shape or such as that shown in FIG.
• the U-shaped profiles (20, 21) have faces located opposite which are extended by lips ( 210, 220) splinterguard oriented towards the interior space of the rule and arranged in a plane parallel to the surface on which the bearing surface (10) of the tool (1) rests.
• the height (e) of the U-shaped legs of the profiles (20, 21) is less than the height (h) of the arch. If it is desired that the knife (11) remove all of the first layer of plaster of thickness (x) deposited on the surface, the height (h) will be at least equal to the sum of the thickness (x) and the height (e) of the legs of the profiles (20, 21). In the case where it is desired to leave a thin layer of coating on which the second layer of colored coating is deposited, as shown in FIG. 3, the height (h) will be less than the sum of the thickness of the plaster and the height of the legs.
• the tool guide (1) has been represented in the form of a rule but that it could be produced in the form of any other object allowing the creation of geometric figures such as square, circle.
• the circle can be produced either by a circular rule comprising two circular profiles connected to each other by spacers or by a compass at the end of which the handle (13) of the tool is fixed.
• the handle (13) would be shaped to have an orientation perpendicular to the surface (10) which is parallel to the surface to be coated.
• the coating used may be of the type sold by PRB under the brand "PRB 85" or "TRADICLAIR".
• the dyes mixed with the coating are for example all the dyes compatible with the coatings.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Knives (AREA)
• Adornments (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9443345

Family Applications (1)

Country Status (5)

Cited By (4)

Citations (4)

• 1993
  • 1993-07-15 EP EP93916000A patent/EP0660785B1/de not_active Expired - Lifetime
  • 1993-07-15 ES ES93916000T patent/ES2105295T3/es not_active Expired - Lifetime
  • 1993-07-15 AT AT93916000T patent/ATE154289T1/de not_active IP Right Cessation
  • 1993-07-15 DE DE69311563T patent/DE69311563T2/de not_active Expired - Lifetime
  • 1993-07-15 WO PCT/FR1993/000720 patent/WO1995002516A1/fr active IP Right Grant

Patent Citations (4)

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