FR2779756A1 - A ceramic floor or wall tile includes an organic film on its back face - Google Patents

Abstract

The tile is made up of a 1st facing layer of fully vitrified ceramic material of low porosity (1%) and a 2nd layer of film forming acrylic polymer applied as an emulsion to the 1st layer. The 2nd layer may also include colored micro-spheres. The 2nd layer may be applied to the hot 1st layer straight after firing.

Description

The present invention relates to a covering tile, for example to

  base of ceramic or similar material, for wall, in particular

  wall, floor, or the like, as well as a process for making such tiles.

  It could be intended, for example, for the interior or exterior use of buildings. We know different types of tiles obtained by

  vitrification. This is the case, in particular, with porcelain tiles.

  One of the problems posed by such tiles is that, with the adhesive mortars usually used, their adhesion is not satisfactory. In fact, after tearing off, it can be seen that the adhesive used does not adhere to the

  tile but remains entirely on the wall.

  Consequently, this type of tile, although of particularly attractive aesthetic appearance, remains under used for fear of

untimely detachment.

  The solution used so far is to increase the quality and / or quantity of adhesive mortar and / or similar fixing agents. For this, we realize, in particular, double gluing or double splashing. However, such solutions quickly encounter limitations. Indeed, if it is a question of coating large walls, the costs

  cost of the adhesive mortar becomes prohibitive.

  The aim of the present invention is to propose a covering tile which overcomes the aforementioned drawbacks and whose fixing,

  particularly the adhesive and / or cohesive power, is improved.

  Another object of the present invention is to provide a

  covering tile which improves the durability of the structure.

  Another object of the present invention is to provide a covering tile and a method for its manufacture which allow

to facilitate installation.

  Other objects and advantages of the invention will become apparent during

  of the description which follows which is given for information only and which has not

to limit it.

  The invention relates to a covering tile, for example based on ceramic or similar material, for a wall, in particular a wall, floor, or the like, comprising at least a first layer, having an appearance face, and a second layer, intended to be placed opposite the wall and provided on all or part of the surface of said tile, consisting of a

  organic film, capable of improving the fixation and / or the durability of said tile.

  The invention also relates to a method for manufacturing a covering tile, for example based on ceramic or similar material, for a wall, in particular a wall, floor, or the like, as described above, method in which said second layer is applied. on said first

factory layer.

  The invention will be better understood on reading the description

  following, accompanied by the attached drawing which forms an integral part thereof and which illustrates, in section view, an example of an embodiment of the covering tile

according to the invention.

  The invention relates to a wall covering tile,

including wall, floor or other.

  It could be intended, for example, for indoor use or

exterior of buildings.

  As shown, the tile according to the invention

  comprises at least a first layer 1, having an aspect face 2.

  Said first layer is, in particular, of mineral nature, for example ceramic or similar. By "similar" is meant a hot-cooked mineral product or a product of the natural stone, marble rock or other type. It is, in particular, a material of very low porosity such

  than, for example, a pressed, fully vitrified ceramic material.

  By "very low porosity" is meant lower porosities

at 1% or even 0.5%.

  However, according to a different embodiment, said

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  first layer 1 may consist of other materials based on mineral products such as, for example, composite materials

  comprising an organic binder, for example polyester resins.

  In order to improve its fixation and / or its durability, the tile according to the invention further comprises a second layer 3, intended to be placed opposite the wall and provided on all or part of the area

  said tile. It is an organic film.

  Said second layer 3 is provided, for example, directly on the rear face 4 of said first layer 1, that is to say that opposite to the

aspect 2.

  Said second layer 3 consists, in particular, of a polymer material with a film-forming effect. It is therefore not a fixing material in itself such as a sizing or splash coating but a material capable of increasing the adhesion and above all the cohesive power of the adhesive used.

for fixing the tile.

  Said second layer 3 also makes it possible, at least in part, to avoid the ascent, in particular the alkaline ascent and / or the ascent of water, from the wall to the pane and therefore protects the first layer 1. The

  the stability of said tile to aging after bonding is thus reinforced.

  Said second layer 3 is formed, for example, from an emulsion, in particular an aqueous emulsion, of said polymer material, deposited,

  directly or indirectly, on the rear face 4 of said first layer 1.

  The organic film defining said second layer 3 is obtained after drying. Said emulsion comprises, for example, 10 to 50% of dry extract. Its composition is adapted to the porosity of the surface of the material used to form the first layer 1 in order to ensure the desired film-forming effect. Said polymer material is, for example, very fine

  particles, that is to say in particular, from 10 to 100 micrometers.

  According to a first embodiment, said polymer material

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  consists of an acrylic polymer. It may also be, in particular, polychloroprene. Said second layer 3 thus defines, for example, a transparent film. In order to be able to identify its presence on a tile, it can possibly be provided with colored microbeads. The invention also relates to a method for manufacturing

  tile as described above, entirely made in the factory.

  According to a first embodiment of this process, a material, in particular mineral, is baked to define said first layer 1 and then

  apply said second layer 3 to said first layer 1, hot, that is

  that is, just after baking said first layer 1.

  According to another embodiment, said second layer 3 can also be applied cold, in particular in the case of a first

  layer I in natural stone, marble rock or other.

  With such materials, the first layer 1 is first polished and then said second layer 3 is applied to said first

  layer 1, advantageously free of moisture by drying.

  Naturally, other embodiments, within the reach of those skilled in the art, could have been envisaged without departing from the scope of

The invention.

Claims (10)

  1. Covering tile, for example based on ceramic or similar material, for wall, in particular wall, floor, or other, comprising at least a first layer (1), having an aspect face (2), and a second layer (3), intended to be placed facing the wall and provided on all or part of the surface of said tile, consisting of an organic film,   able to improve the fixing and / or the durability of said tile.   2. Tile according to claim 1, wherein said first layer (1) is mineral in nature.   3. The tile of claim 1, wherein said first   layer (1) is made of a material of very low porosity.   4. The tile of claim 1, wherein said first   layer (1) consists of a fully vitrified pressed ceramic material.   5. The tile of claim 1, wherein said second   layer (3) consists of a polymer material with film-forming effect.   6. Tile according to claim 5, wherein said second layer (3) is formed from an emulsion of said polymeric material,   deposited on said first layer (1).   7. The tile of claim 5, wherein said material   polymer is very fine particles.   8. The tile of claim 5, wherein said material   polymer consists of an acrylic polymer.   9. The tile of claim 1, wherein said second   layer (3) comprises colored microbeads.   10. A method of manufacturing a covering tile, for example based on ceramic or similar material, for a wall, in particular a wall, floor, or the like, according to claim 1, said tile comprising at least a first layer (1), having a appearance face (2), and a second layer (3), intended to be placed facing the wall and provided on all or part of the surface of said tile, consisting of an organic film, capable of improving the fixing and / or the aging stability of said tile, method in which said second layer (3) is applied to said first layer (1) at the factory.