EP4166244A1 - Lackierverfahren - Google Patents

Lackierverfahren Download PDF

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Publication number
EP4166244A1
EP4166244A1 EP22199981.6A EP22199981A EP4166244A1 EP 4166244 A1 EP4166244 A1 EP 4166244A1 EP 22199981 A EP22199981 A EP 22199981A EP 4166244 A1 EP4166244 A1 EP 4166244A1
Authority
EP
European Patent Office
Prior art keywords
projections
roller
layer
paint
painting
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.)
Granted
Application number
EP22199981.6A
Other languages
English (en)
French (fr)
Other versions
EP4166244B1 (de
Inventor
Ferdinando Sarti
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.)
Valpaint SpA
Original Assignee
Valpaint SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valpaint SpA filed Critical Valpaint SpA
Publication of EP4166244A1 publication Critical patent/EP4166244A1/de
Application granted granted Critical
Publication of EP4166244B1 publication Critical patent/EP4166244B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/0207—Rollers ; Hand tools comprising coating rollers or coating endless belts characterised by the cover, e.g. cover material or structure, special surface for producing patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/10—Hand tools for removing partially or for spreading or redistributing applied liquids or other fluent materials, e.g. colour touchers
    • 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
    • B44D5/00—Surface treatment to obtain special artistic surface effects or finishes

Definitions

  • the present invention relates to a painting method used to obtain a particular decorative pattern on a surface.
  • Spray painting uses a compressor and a spray gun to transfer the paint onto the wall, without a direct contact of the spray gun with the wall.
  • the paint is sprayed with a jet of compressed air so that a uniform layer of paint is applied to the wall.
  • Such a technique has some advantages, such as fast execution, quick drying and low paint consumption, but it does not provide any special aesthetic effects of the painted surface.
  • Sponged painting is characterized by a 'wrinkled' effect of the surface, which is achieved by using a special tool consisting of a sponge support whereon a synthetic mohair fabric with a shaved pile is applied.
  • the support has a handle which is usually made of plastic or metal and is easy to hold and practical to use.
  • pads are commercially available, each one of them having a particular pattern. A layer of paint of the chosen color is spread on the wall using a paintbrush; once the layer of paint has dried, the pad is dipped into another paint of the same color, but of a different shade (darker or lighter). Then the wall is dabbed with the pad. This technique makes it possible to achieve original results and to give a personal touch to the walls with an easy process, low costs and customizable decoration.
  • Spatula painting uses a metal spatula, instead of a brush or roller, and provides for painting a wall with several layers. Such a technique has a great decorative effect, but it is impaired by a long execution time and high costs. It is a complex technique with great scenic effect that is ideal for classical settings. Thanks to the overlapping of irregular marks and lines and to the presence of glazing and contrasts, spatula painting creates a three-dimensional visual effect. It is more expensive than the previous painting techniques and requires experience and know-how.
  • Scratch-effect painting provides for applying a first layer of paint having a base color and for letting it dry; then a second layer of paint is applied over the first layer. Before the second layer of paint dries, a metal trowel is applied to the second layer of paint and is moved from the bottom up, and then from right to left to obtain well-defined lines.
  • the scratch-effect on the wall can be customized by using two different colors: a dark color for the base and a lighter color for the surface paint. In view of the above, when the lines are made on the walls, the two colors are visible, in addition to the scratched effect. Such a technique hides any imperfections in the wall, has good durability and low cost.
  • JPS55153173U describes a roller-type painting device used to apply a layer of a very viscous, sticky paint. Therefore, the roller of such a painting device has a special configuration to prevent the paint from sticking to the roller.
  • the painting device includes a perforated roller having holes cut into the surface of the roller.
  • the roller has no projections that project from the surface of the roller.
  • the holes of the roller have a polygonal shape in cross-section that can be shaped like a truncated cone or a truncated pyramid.
  • the projections between the holes of the roller have a continuous shape with a net or grid pattern and thus the projections do not have the shape of a truncated pyramid.
  • the holes in one row are staggered with respect to the holes in an adjacent row. This means that the projections between the holes are not aligned in longitudinal rows and circumferential columns. Furthermore, if the continuous portions of the roller between the holes are considered projections, certainly such projections do not have a head shaped like a segment of a sphere. Therefore, a perforated roller, such as that described in JPS55153173U cannot generate a jute bag effect when applied over a layer of paint.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art by providing a painting method that is capable of obtaining a painted surface having the appearance of a jute fabric, such as that used in the production of grain sacks.
  • Another purpose is to provide such a painting method that is practical, versatile, inexpensive, and easy to implement.
  • a painting device used to perform the painting method according to the invention is described.
  • Such a painting device is indicated generally with the reference numeral 100.
  • the painting device (100) has been devised to obtain a painted surface having the effect of a jute fabric of the type used for grain sacks.
  • the painting device (100) comprises a handle (1) having a substantially cylindrical shape with an axis (X).
  • the handle (1) is suitable for being held by an operator.
  • a supporting rod (2) is connected to the handle (1).
  • the supporting rod (2) is appropriately bent.
  • the supporting rod (2) comprises:
  • a cylindrical roller (6) is rotatably mounted on the fourth section (23) of the supporting rod, in such a way to rotate about an axis of rotation (Y) orthogonal to the axis (X) of the handle.
  • the roller (6) has a length such that the axis (X) of the handle (1) passes through the center of the roller (6).
  • the roller (6) can be made in one piece.
  • the roller (6) may comprise a supporting core (3) rotatably mounted on the fourth section (23) of the supporting rod and a tubular liner (4) mounted on the supporting core (3) in such a way to rotate integrally with the supporting core (3).
  • the liner (4) has an internally hollow cylindrical shape.
  • the liner (4) can be fixedly mounted on the supporting core (3) or can be integral with the supporting core (3).
  • the handle (1) can be made of plastic or wood.
  • the supporting rod (2) can be made of metal.
  • the supporting core (3) can be made of wood or rigid plastic.
  • the liner (4) can be made of synthetic rubber, natural rubber, latex or silicone.
  • the roller (6) can be defined as a notched roller, which includes an outer surface (40) and a plurality of projections (5) that project radially from said outer surface (40).
  • Each projection (5) is shaped like a truncated pyramid with a square base, which narrows as one moves away from the axis of rotation (Y) of said roller (6).
  • the major base (B) of each projection (5) has a side (L) of about 4-7 mm, preferably 5 mm, whereas the minor base (b) has a side (L1) of about 2-5 mm, preferably 2.5 mm.
  • the minor base (b) of each projection (5) has a convex shape and more precisely coincides with a segment of a sphere, as shown in the enlargement of Fig. 6 .
  • Each projection (5) has a height (H) of about 3-6 mm, preferably 3.5 mm.
  • the projections (5) are aligned with each other and regularly spaced along rows (R) extending along a direction parallel to the axis (Y) of the roller (6) and columns (C) extending in a circumferential direction.
  • the projections (5) of a column (C) are equidistant from each other by a distance (d1) of about 3-6 mm, preferably 3.5 mm, measured between the major bases (B) of the projections (5).
  • the projections (5) of a column (C) are equidistant from each other by a distance (d2) of about 4-7 mm, preferably 5 mm, measured between the minor bases (b) of the projections.
  • the projections (5) of a row (R) have identical distances (d1 and d2).
  • the shape and distribution of the projections (5) have been studied so that the projections (5) leave prints on a layer of paint suitable for generating an aesthetic effect similar to that of a jute bag fabric, such as that shown in Fig. 1 .
  • the painting method according to the invention provides for painting a surface of a wall or substrate in a conventional manner, such as with a brush, a roller or a spray gun, so as to obtain a uniform layer of paint. Then, before the layer of paint dries, the roller (6) of the painting device (100) is rolled over the layer of fresh paint. In such a case, the projections (5) of the roller (6) compress the layer of fresh paint.
  • the pressure of the projections (5) of the roller (6) on the layer of fresh paint generates prints (7) on the layer of paint, having an irregular contour and a different color shade than the color (8) of the layer of fresh paint that has not been in contact with the projections (5) of the roller.
  • Such prints (7) are distributed along rows (R) and columns (C), like the projections (5) of the roller.
  • the prints (7) of the layer of paint have a lighter color than the color (8) of the layer of fresh paint that has not been in contact with the projections (5) of the roller because, as a result of said contact, the layer of fresh paint is compressed, pushed laterally, and thinned, making it possible to see, albeit irregularly and in a blurred manner, the color shade of the panel or wall whereon the layer of fresh paint was spread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP22199981.6A 2021-10-12 2022-10-06 Lackierverfahren Active EP4166244B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202100026093 2021-10-12

Publications (2)

Publication Number Publication Date
EP4166244A1 true EP4166244A1 (de) 2023-04-19
EP4166244B1 EP4166244B1 (de) 2024-05-15

Family

ID=79601834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22199981.6A Active EP4166244B1 (de) 2021-10-12 2022-10-06 Lackierverfahren

Country Status (1)

Country Link
EP (1) EP4166244B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55153173U (de) * 1979-03-16 1980-11-05
JPH11141097A (ja) * 1997-11-05 1999-05-25 Kiyoto Sakamoto タイル下地仕上成形法およびタイル下地仕上用ディンプルローラー
EP2740546A2 (de) * 2012-12-06 2014-06-11 Thomas Schäfer Auftragsmittel, umfassend eine Walze, zum Auftragen eines Materials auf einen Untergrund
JP2017077526A (ja) * 2015-10-20 2017-04-27 日本ペイントホールディングス株式会社 塗膜形成方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55153173U (de) * 1979-03-16 1980-11-05
JPH11141097A (ja) * 1997-11-05 1999-05-25 Kiyoto Sakamoto タイル下地仕上成形法およびタイル下地仕上用ディンプルローラー
EP2740546A2 (de) * 2012-12-06 2014-06-11 Thomas Schäfer Auftragsmittel, umfassend eine Walze, zum Auftragen eines Materials auf einen Untergrund
JP2017077526A (ja) * 2015-10-20 2017-04-27 日本ペイントホールディングス株式会社 塗膜形成方法

Also Published As

Publication number Publication date
EP4166244B1 (de) 2024-05-15

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