Method for depositing a graffiti on a support

Abstract

The present invention relates to the use, as a graffiti support, of a polymeric film consisting of a non-fluorinated polymer, said polymeric film comprising a first self-adhesive side intended to be applied to at least one surface of an object or building and a second side intended to receive a layer of graffiti. The present invention also relates to a method for depositing graffiti onto a support comprising the following steps: 1) providing a polymeric film as described above, 2) application by a user of a first self-adhesive side to at least one surface of an object or building, 3) deposition, by said user, of a layer of graffiti onto a second side, and 4) optionally, detachment of said polymeric film from said surface by a user.

Description

FIELD OF INVENTION

[0001] The present invention relates to the use as a support for graffiti of a polymeric film consisting of a non-fluorinated polymer, said polymeric film comprising a first self-adhesive side intended to be applied to at least one surface of an object or building and a second side intended to receive a layer of graffiti.

[0002] The present invention also relates to a method of depositing graffiti on a polymeric film as described above. STATE OF THE ART

[0003] Born in the 1960s across the Atlantic, street art, and in particular the graffiti movement, really took off in the 1970s. Soon, inscriptions and drawings appeared on buildings, mailboxes, telephone booths, tunnels, buses and subway trains.

[0004] However, due to their permanent nature, problems related to damage to street furniture and the cost of removing these inscriptions quickly arose, contributing to a negative perception of this type of expression, now considered vandalism, and leading to the stigmatization of graffiti artists as a whole. Local authorities have therefore had to adapt and find solutions to combat this damage.

[0005] Self-adhesive polymeric films are known from prior art in applications as a support for decoration and / or visual communication, or as protection on objects usually subject to malicious acts, such as trains, buses or other vehicles.

[0006] Documents EP 2351892, WO 2014133834, and WO 2014186135 describe, for example, printable, multi-layer, self-adhesive decorative films intended for use on the external surfaces of moving vehicles. However, because they have an anti-graffiti protective coating on their surface, these films are not suitable for use as a medium for free expression; quite the opposite.

[0007] Thus, there is a real need to provide an alternative for all players in the graffiti movement so that they can express themselves through street painting without causing any inconvenience or damage, and thus enhance their image.

[0008] The present invention aims to meet this need by offering a polymer film that combines the ephemeral culture of graffiti with the possibility for companies and communities to enhance their heritage for the duration of an event and to allow artists to express their art in places impossible to paint, such as historical monuments managed by the Centre des Monuments Nationaux (CMN).

[0009] Thanks to its self-adhesive nature, the film according to the present invention is particularly easy to use and accessible to all types of users, amateur or professional. In particular, applying the film to various surfaces is very simple, as is removing the film when the artwork needs to be taken down. The second side is made of a material particularly suitable for applying paint, so the quality of the artwork is not affected by the use of such a support. SUMMARY

[0010] The present invention relates to the use as a support for graffiti of a polymeric film consisting of at least one non-fluorinated polymer, said polymeric film comprising a first self-adhesive side intended to be applied to at least one surface of an object or building and a second side intended to receive a layer of graffiti.

[0011] In one embodiment, the non-fluorinated polymer is selected from polyesters, polycarbonates, polyurethanes, polyacrylics, and chloropolymers. In one embodiment, the non-fluorinated polymer is polyethylene terephthalate (PET). In another embodiment, the non-fluorinated polymer is polyvinyl chloride (PVC).

[0012] In one embodiment, said first self-adhesive face is coated with a layer of pressure-sensitive adhesive comprising a polymer selected from polyacrylics.

[0013] In one embodiment, said first self-adhesive face is electrostatically charged.

[0014] In one embodiment, said polymeric film is transparent.

[0015] In one embodiment, said polymeric film further comprises a matte finish and / or colored pigments and / or phosphorescent pigments.

[0016] In one embodiment, said polymeric film further comprises a glossy finish and / or colored pigments and / or phosphorescent pigments.

[0017] In one embodiment, said second face is covered with a print intended to be covered with a layer of graffiti.

[0018] In one embodiment, said polymeric film is transparent and / or in which said second face is not covered with a print or a protective layer.

[0019] In one embodiment, said first self-adhesive face is intended to be applied to flat surfaces selected from glazed surfaces such as glass surfaces, building facades such as concrete facades, walls such as cement walls, plasterboard, wood panels and cardboard panels.

[0020] In one embodiment, said first self-adhesive face is intended to be applied to three-dimensional surfaces selected from mobile machinery, building facades, brick walls, stone walls, stairs, mailboxes and garbage cans.

[0021] The present invention also relates to a method for depositing graffiti, preferably graffiti, onto a substrate, said method comprising the following steps: 1) provision of a polymeric film usable according to the invention, 2) application of a first self-adhesive side to at least one surface of an object or building by a user, 3) deposition of a layer of graffiti on a second side by a user, and 4) optionally, detachment of said polymeric film from said surface by a user.

[0022] In one embodiment, the process further includes a step of cutting said polymeric film.

[0023] In one embodiment, the process further includes a step of application by a user of said first self-adhesive side onto a new surface and / or application of a protective film onto said graffiti layer or a step of framing said polymeric film.

[0024] Another object of the present invention relates to a graffiti kit comprising at least one polymer film as described above; at least one squeegee such as a felt squeegee; at least one piece of graffiti protection clothing; at least one simple or professional cartridge-type protective mask; at least one pair of gloves; at least one spray paint can; at least one spray paint can cap; at least one felt-tip pen; and optionally at least one roll of painter's tape. DEFINITIONS

[0025] In the present invention, the terms below are defined as follows: "Self-adhesive"This concerns any material, one side of which is coated with a product that adheres without wetting by simple pressure. For the purposes of this invention, said first self-adhesive side is self-adhesive because it is coated with a pressure-sensitive adhesive (PSA). For the purposes of this invention, said first self-adhesive side is self-adhesive because it is electrostatically charged. "Extension at the point of rupture" This refers to a material's ability to elongate before breaking under tensile stress. Denoted A%, it is a dimensionless characteristic of materials. A% is determined by a tensile test. "Movie" relates to a sheet of non-metallic material with a thickness of less than 1 mm, preferably less than 0.5 mm. "Strength of adherence"This relates to the peel strength after 24 hours of application of the self-adhesive film to a substrate. Expressed in N / m, it is measured according to standard NF EN 2810-2 or ISO 8510-2. For the purposes of this invention, a film is considered to have sufficient adhesion strength to prevent it from detaching on its own from its substrate, but not so strong as to prevent removal by a user, if its adhesion strength is less than 2000 N / m, preferably less than 1200 N / m. "Graffiti"Graffiti refers to a form of communication and artistic expression generally representing a character, a landscape, a set of letters, a mark, and / or a signature. It is a street art technique consisting of a drawing or inscription painted, drawn, or engraved on public or private property, monuments, walls, or any other surface not usually used for this purpose. By extension, "graffiti" encompasses a work that uses the same artistic codes, even if it is created on a different surface. For the purposes of this invention, graffiti consists of an inscription or drawing made by a user on a surface using felt-tip pens, markers, or acrylic or water-based spray paint. "Gross weight" This relates to the film's strength, corresponding to its surface mass calculated in g / m². The lower its grammage, the more flexible the film will be. "Liner"concerns a non-stick film or preferably a sheet of paper coated with a non-stick layer intended to cover and protect said adhesive layer on the surface of said polymeric film before its application. "Paint" relates to a coloring material composed of a pigment or dye, a binder, and optionally a solvent, used to coat a surface and intended to be applied by a user (generally a human being such as an adult or a child). For the purposes of the invention, the term "paint" does not include, in particular, printing inks. For the purposes of the invention, the term "paint" This does not include, in particular, coloring materials intended to be applied by a machine. "Phosphorescence" concerns the phenomenon observed when a material continues to emit light after being illuminated. For the purposes of this invention, the addition of "phosphorescent pigments"gives the self-adhesive polymer film the ability to store light during the day and then gradually release it in the dark, thus highlighting graffiti artwork. "Colored pigments" This concerns chemical substances, of mineral or organic origin, natural or synthetic, that are coloring and insoluble in the medium they color. Once incorporated into the mass of the polymer film, they allow it to be colored. "Polymer" This concerns a carbon-based material made from macromolecules, that is, molecules composed of repeating smaller units (monomers). The choice of monomers and the final molecular weight of the polymer determine the physical and mechanical properties of the final polymer. "Non-fluorinated polymer"concerns a polymer comprising less than 1% of fluorinated monomer (i.e. a monomer comprising at least one fluorine atom), preferably less than 0.1%, more preferably less than 0.01%, even more preferably 0%. "Tensile strength" This relates to a material's ability to withstand tensile loads. Expressed in N / m, it is equal to the maximum stress the material experiences in a tensile test. For the purposes of this invention, a film is considered sufficiently stretchable by hand and able to be applied to a curved or angular surface if its elongation at break is greater than 100% and its tensile strength is less than 6000 N / m. DETAILED DESCRIPTION

[0026] The present invention relates to the use as a support for painting of a polymeric film consisting of at least one non-fluorinated polymer, said polymeric film comprising a first self-adhesive face intended to be applied to at least one surface of an object or building and a second face intended to receive a layer of paint.

[0027] According to a preferred embodiment, the painting is graffiti. In this embodiment, the polymer film is therefore used as a support for graffiti.

[0028] According to one embodiment, the polymer film is not a multilayer complex.

[0029] According to one embodiment, the polymeric film is a single-layer film comprising a first self-adhesive side and a second side intended to receive a layer of graffiti. According to one embodiment, the non-fluorinated polymer is selected from polyesters, polycarbonates, polyurethanes, polyacrylics and chloropolymers, preferably polyethylene terephthalate (PET) and polyvinyl chloride (PVC).

[0030] In one embodiment the non-fluorinated polymer is polyethylene terephthalate (PET).

[0031] In a preferred embodiment, the non-fluorinated polymer and polyvinyl chloride (PVC) are used. This embodiment is advantageous because it allows a user to apply the polymer film to a flat or three-dimensional surface and to remove the film after applying a layer of graffiti without damaging it.

[0032] In one embodiment, the polymeric film has a thickness between 25 µm and 150 µm. In another embodiment, the polymeric film has a thickness between 30 µm and 80 µm. In a preferred embodiment, the polymeric film has a thickness between 50 µm and 80 µm.

[0033] In one embodiment, said polymeric film has a basis weight between 50 g / m² and 200 g / m². In another embodiment, said polymeric film has a basis weight between 60 g / m² and 170 g / m².

[0034] In a first embodiment, said first self-adhesive face is coated with a pressure-sensitive adhesive. In another embodiment, said pressure-sensitive adhesive is a polymer selected from polyacrylics.

[0035] In one embodiment, said adhesive layer has a thickness of 15 µm to 50 µm, preferably 20 µm to 40 µm. In one embodiment, said first self-adhesive face has an adhesion force of less than 2000 N / m, preferably less than 1200 N / m.

[0036] In a second embodiment, the first self-adhesive surface is not coated with an adhesive layer. In another embodiment, the first self-adhesive surface is electrostatically charged. This embodiment is advantageous because it allows the user to apply the polymeric film to a glass surface and to remove and / or reposition it without leaving any adhesive residue.

[0037] In one embodiment, the polymer film has an elongation at break greater than 50%, preferably greater than 100%. In another embodiment, the polymer film has a tensile strength of less than 6000 N / m, preferably less than 5000 N / m.

[0038] In one embodiment, the polymeric film is protected by a liner on the first self-adhesive side. In one embodiment, the liner is selected from kraft paper or glassine.

[0039] In one embodiment, said polymeric film is supplied in the form of a roll of length from 1 to 5000 m, and of width from 615 m to 2000 m.

[0040] In one embodiment, the polymer film is partially or completely transparent. This embodiment is advantageous for giving the user the sensation of painting directly on objects or buildings on which painting is prohibited (paintings, historical monuments, etc.), when this is not actually the case.

[0041] In one embodiment, the polymeric film further comprises a matte finish. In another embodiment, the polymeric film further comprises a glossy finish.

[0042] In one embodiment, the polymeric film further comprises colored pigments. This embodiment is advantageous because it allows the user to choose a ready-made colored background.

[0043] In one embodiment, the polymeric film further comprises phosphorescent pigments. This embodiment is advantageous for nighttime use.

[0044] In one embodiment, said polymeric film further comprises a matte finish, colored pigments and phosphorescent pigments.

[0045] In one embodiment, said polymeric film further comprises a glossy finish, colored pigments and phosphorescent pigments.

[0046] In one embodiment, said self-adhesive polymer film is pre-cut according to the desired shape.

[0047] In a first embodiment, the second side is covered with a printed surface intended to be covered with a layer of graffiti. This embodiment is ideal for learning or collaborative projects, allowing the user to color using felt-tip pens, markers, or acrylic or water-based spray paints, following the outlines of a printed sketch.

[0048] In one embodiment, the second printed side is covered with a protective PET layer, this protective layer being designed to receive a layer of graffiti. This embodiment is advantageous because it allows the user to erase the graffiti layer after application in order to apply a new layer of graffiti.

[0049] In a second embodiment, said second face is not covered with a print.

[0050] In one embodiment, said second face is not covered with a protective layer. In one embodiment, said second face is not covered with a printed protective layer.

[0051] In one embodiment, the first self-adhesive side is intended to be applied to flat surfaces. In another embodiment, the first self-adhesive side is applied to flat surfaces. In another embodiment, the first self-adhesive side is applied to glazed surfaces such as glass surfaces. In another embodiment, the first self-adhesive side is applied to building facades such as concrete facades. In another embodiment, the first self-adhesive side is applied to walls such as cement walls. In another embodiment, the first self-adhesive side is applied to plasterboard. In another embodiment, the first self-adhesive side is applied to wooden panels. In another embodiment, the first self-adhesive side is applied to cardboard panels.

[0052] In one embodiment, the first self-adhesive side is intended to be applied to three-dimensional surfaces. In another embodiment, the first self-adhesive side is applied to three-dimensional surfaces. In one embodiment, the first self-adhesive side is applied to mobile vehicles such as trains, buses, cars, boats, or airplanes. In another embodiment, the first self-adhesive side is applied to building facades. In another embodiment, the first self-adhesive side is applied to brick walls. In another embodiment, the first self-adhesive side is applied to stone walls. In another embodiment, the first self-adhesive side is applied to stairs. In another embodiment, the first self-adhesive side is applied to mailboxes.In one embodiment, said first self-adhesive side is applied to bins.

[0053] In one embodiment, a squeegee is used to apply and / or facilitate the application of the film to the substrate. In one embodiment, the squeegee is a felt squeegee.

[0054] In one embodiment, the support, once used (i.e., once the graffiti layer has been applied), is peeled off. In another embodiment, the support, once used (i.e., once the graffiti layer has been applied), is cut out. In another embodiment, the support, once used (i.e., once the graffiti layer has been applied), is peeled off and cut out.

[0055] In one embodiment, the substrate, once used (i.e., once the graffiti layer has been applied), is peeled off and applied to another surface. In another embodiment, the substrate, once used (i.e., once the graffiti layer has been applied), is peeled off, cut out, and applied to another surface.

[0056] In one embodiment, the substrate, once used (i.e., once the graffiti layer has been applied), is covered with a protective film. In another embodiment, the substrate, once used (i.e., once the graffiti layer has been applied), is peeled off, applied to another surface, and covered with a protective film. In yet another embodiment, the substrate, once used (i.e., once the graffiti layer has been applied), is peeled off, cut out, applied to another surface, and covered with a protective film.

[0057] In one embodiment, the protective film is a plexiglass film. In another embodiment, the protective film is a PET film. In yet another embodiment, the protective film is a fluoropolymer film.

[0058] The present invention also relates to a method for depositing paint onto a substrate comprising the following steps: 1) provision of a polymeric film as described above, 2) application by a user of a first self-adhesive side to at least one surface of an object or building, 3) application of a layer of paint to a second side by a user, and 4) optionally, detachment of said polymeric film from said surface by a user.

[0059] In a preferred embodiment, the present invention relates to a method for depositing graffiti onto a surface comprising the following steps: 1) provision of a polymeric film as described above, 2) application by a user of a first self-adhesive side to at least one surface of an object or building, 3) deposition of a layer of graffiti on a second side by a user, and 4) optionally, detachment of said polymeric film from said surface by a user.

[0060] In another preferred embodiment, the present invention relates to a method for depositing graffiti onto a surface comprising the following steps: 1) provision of a polymeric film as described above, 2) application by a user of a first self-adhesive side to at least one surface of an object or building, 3) deposition of a layer of graffiti on a second side by a user, and 4) detachment of said polymeric film from said surface by a user.

[0061] In one embodiment, the process further includes a step of cutting said polymeric film.

[0062] In one embodiment, the method further includes a step of applying said first self-adhesive side to another surface. In another embodiment, the method further includes a step of applying a protective film to said graffiti layer.

[0063] In another embodiment, the process further includes a step of framing said polymeric film, said frame comprising a structure, a protective PVC pane, and a rigid backing of MDF or compressed cardboard. This embodiment is advantageous in allowing a user to obtain at least one print of the finished product and optionally resell it.

[0064] In one embodiment, the user is a professional graffiti artist. In another embodiment, the user is not a professional graffiti artist. In one embodiment, the user is an adult. In another embodiment, the user is a child. In another embodiment, the user is a person with reduced mobility. In another embodiment, the user is an elderly person.

[0065] The present invention also relates to a painting kit comprising or consisting of at least one polymer film as described above; at least one squeegee such as a felt squeegee; at least one piece of protective clothing against paint such as gloves, a simple or professional mask or a coverall; at least one paint aerosol ( spray ) such as water-based or acrylic paint; at least one paint aerosol cap ( caps); at least one felt-tip pen (marker) such as a Posca® marker; and optionally at least one roll of painter's tape. EXAMPLES

[0066] The present invention will be better understood by reading the following examples which illustrate the invention in a non-limiting way. Example 1: Self-adhesive polymer film for glass surfaces

[0067] Film properties Polymer PVC Thickness (µm) 70 Weight (g / m²) 91 Elongation at break (%) 400 Adhesive Polymer Acrylic solvent Adhesion force (N / m) 440 Compatibility Surface Glass / plexiglass Example 2: Self-adhesive polymer film for porous surfaces

[0068] Film properties Polymer PVC Thickness (µm) 55 Adhesive Polymer Acrylic solvent Adhesion force (N / m) 960 Compatibility Surface Bricks / Concrete Example 3: Self-adhesive polymer film for metal surfaces

[0069] Film properties Polymer PVC Thickness (µm) 50 Adhesive Polymer Acrylic solvent Adhesion force (N / m) 680 Compatibility Surface Metal Example 4: Self-adhesive polymer film for non-porous surfaces

[0070] Film properties Polymer PVC Thickness (µm) 100 Adhesive Polymer Acrylic solvent Adhesion force (N / m) 480 Compatibility Surface Non-porous surface Results

[0071] In each of examples 1 to 4, the polymeric film, comprising a self-adhesive first side, exhibits sufficient flexibility to conform to the shape of its substrate, as well as strong enough adhesion to remain firmly in place while allowing for easy removal by the user. Good paint adhesion is observed on the second side, even after one week of use.

[0072] Thus, in each example, the film was easily applied by the user to various surfaces, with good adhesion of the first self-adhesive side. The paint layer was then applied to the second side using an aerosol can. Once the event was over, the film was easily removed from the surface by the user without leaving any trace of damage.

Claims

1. Use as a graffiti support of a polymeric film consisting of at least one non-fluorinated polymer, said polymeric film comprising a first self-adhesive side intended to be applied to at least one surface of an object or building and a second side intended to receive a layer of graffiti.

2. Use according to claim 1, wherein said non-fluorinated polymer is selected from polyesters, polycarbonates, polyurethanes, polyacrylics and chloropolymers; preferably polyethylene terephthalate (PET) and polyvinyl chloride (PVC).

3. Use according to claim 1 or the claim 2, in which said first self-adhesive face is coated with a layer of a pressure-sensitive adhesive comprising a polymer selected from polyacrylics.

4. Use according to any one of the claims 1 has 3,in which said first self-adhesive face is electrostatically charged.

5. Use according to any one of the claims 1 has 4, in which said polymeric film is transparent.

6. Use according to any one of the claims 1 has 5, in which said polymeric film further comprises a matte finish and / or colored pigments and / or phosphorescent pigments.

7. Use according to any one of the claims 1 has 6, in which said polymeric film further comprises a glossy finish and / or colored pigments and / or phosphorescent pigments.

8. Use according to any one of the claims 1 has 7, in which said second side is covered with a print intended to be covered with a layer of graffiti.

9. Use according to any one of the claims1 has 8, in which said second side is not covered with a print or a protective layer.

10. Use according to any one of the claims 1 has 9, in which said first self-adhesive face is intended to be applied to flat surfaces selected from glazed surfaces such as glass surfaces, building facades such as concrete facades, walls such as cement walls, plasterboard, wood panels and cardboard panels.

11. Use according to any one of the claims 1 has 10, in which said first self-adhesive face is intended to be applied to three-dimensional surfaces selected from among mobile machinery, building facades, brick walls, stone walls, stairs, mailboxes and garbage cans.

12. A method for depositing graffiti onto a substrate, said method comprising the following steps: 1) supplying a polymeric film as described in any one of the claims 1 has 11, 2) application of a first self-adhesive side to at least one surface of an object or building by a user, 3) deposition of a layer of graffiti on a second side by a user, and 4) optionally, detachment of said polymeric film from said surface by a user.

13. Method according to claim 12, including further a cutting step of said polymeric film.

14. Method according to claim 12 or the claim 13, including further a step of application by a user of said first self-adhesive side onto a new surface and / or a step of application of a protective film onto said graffiti layer or a step of framing said polymeric film.

15. Paint kit comprising at least one polymeric film as described in any one of the claims 1 has 11 ; at least one squeegee such as a felt squeegee; at least one piece of protective clothing against paint; at least one simple or professional cartridge-type protective mask; at least one pair of gloves; at least one aerosol can of paint; at least one aerosol can cap; at least one felt-tip pen; and optionally at least one roll of painter's tape.