FR2957848A1 - HOLLOW BODY SUCH AS A BOTTLE FOR PERFUMERY OR COSMETICS HAVING A REASON BY LOCALIZED REMOVAL OF A COATING. - Google Patents

Abstract

Method for producing a pattern (15) by localized removal of a coating on a body (2) which is hollow and bounded by a wall (4), a first wall portion (7a) facing a second conjugate portion (7b), on a pair of etchable coated conjugate portions (14a, 14b), at least one layer of an etchable coating (12), the first conjugate portion (14a) including a non-etchable pattern (15), and the second conjugate portion (14b) being devoid, wherein there is available a laser beam (16) capable of impacting the etchable coating to remove it in the impact zone (21) and constitute the pattern without etchable coating (15), there is available pieces (22) of a solid material then able to form a barrier for the laser beam (16), is placed in the interior space (3) of the body (2) pieces of barrier material, the first conjugate portion (14a) is subjected to the impact of the er (16) and the pattern (15) is thus produced, and the interior (3) of the pieces (22) of the barrier material is emptied, so that the laser beam (16) is stopped by the barrier material , does not impact the second conjugate portion with etchable coating (14b) and thus does not remove an etchable coating in this second conjugate portion (14b).

Description

Hollow body such as a bottle for perfumery or cosmetics having a pattern by localized removal of a coating

The invention relates to hollow bodies provided with one or more units by localized removal of a coating and more particularly to bottles or the like for perfumery or cosmetics.

More specifically, the object of the invention is, first of all, a method for producing a pattern by localized removal of a coating on a body which: - is hollow, forms an interior space and is limited by a peripheral wall of a transparent material or translucent and adapted to be traversed by a laser beam, provided with an opening, a first peripheral wall portion having, arranged relative to each other, a second portion of peripheral wall, and comprises on minus a pair of conjugated portions with an etchable coating (that is, adapted, under the effect of a laser beam adapted to be etched with removal of material) of at least one of the inner and outer faces of the peripheral wall, at least one layer of an etchable coating forming a body with the adjacent peripheral wall, such that: the first conjugate portion with an etchable coating includes at least one uncoated pattern etchable, and the second conjugate portion having an etchable coating is devoid of the at least one pattern without an etchable coating.

The invention also relates to a method for producing a container (or hollow body) - content - capping means, implementing the above method to achieve a pattern by localized removal of a coating, an installation to achieve a pattern by localized removal of a coating on a hollow body employing the same method above, a hollow body having a pattern by localized removal of a coating, obtained by the same method above, and finally an assembly containing (or hollow body) - content - capping means comprising such a hollow body.

FR-A-2690862 teaches that it is known to engrave the outer face of a wall of a hollow body, but not the inner face. This document precisely describes a method and a laser engraving installation of such an inner face. According to this document, a laser is used whose wavelength is chosen with respect to the nature of the material of the receptacle so that the beam passes through the wall of the receptacle, by transparency, for example a YAG laser for a glass wall. To replace the engraving to be made, on the inside face of the wall of the receptacle chosen for the etching, a surface-layer of opaque material at the wavelength of the laser beam such as boron nitride, for example at using a small brush with a curved handle or by depositing a liquid in the hollow body inclined correctly for this purpose. The laser beam is focused on the inner face of the wall of the hollow body by servocontrolling the focusing of the laser beam so that the focal point is always at the rear inner face of the wall of the hollow body. The inscription is to be made to the laser beam focused on this inner face, the laser beam causing the focal point a heating causing microscopic bursting of the material, which results in a more or less opaque point there. Finally, remove the opaque surface layer unless it participates in the decoration of the hollow body.

The technique proposed by FR-A-2690862 is complex to implement and limited in scope. Indeed, the application on the inner face of the opaque surface layer is long, arduous, random or with little precision. It is the same with the servo-control of the focal point of the laser on the inner face. The same is true of the removal of the opaque surface layer.

The same is true of the technique described in document FR-A-2930193 which describes a method of decorating a perfume bottle having a wall having an outer face and an inner face, at least one of these faces having a complex shape in relief. The method comprises a step of applying a coating to at least a portion of one of the complex-shaped faces and a subsequent marking step by means of a laser beam whose focal point is at the level of the coating for achieve a visual effect. The document recommends the implementation of a fiber laser or a fiber laser, in particular a fiber YAG laser, so as to reduce the width of the beam. As in the document FR-A-2690862, there is provided servocontrol of the focusing of the laser beam so that the focal point is always at the level of the coating.

The technique described in document FR-A-2690862 in document FR-A-2930193 is also not suitable for the case of a transparent or translucent glass or plastic material bottle, intended for the field of cosmetics, for contain a liquid such as a perfume, comprising a decoration carried out inside the vial, as described in documents FR-A-2851940 and FR-A-2889485. FR-A-2851940 discloses a technique for making a lacquer layer on the inside of the bottle by spraying in the flask with a mist in the form of powder or liquid. The document FR-A-2889485 describes the spraying of an enamel mist.

Thus, there is a need to be able to provide a pattern by localized removal of a coating of the inner face of a hollow body, especially for bottles or the like for perfumery or cosmetics. With such a body, at a first portion of peripheral wall, corresponds, arranged in a relative manner vis-a-vis, a second portion of peripheral wall, these two portions being described as conjugate, On at least one pair of qualified conjugate portions With etchable coating of at least one of the faces (inner or outer) of the peripheral wall, the body has at least one layer of a laser-etchable coating forming a body with the adjacent peripheral wall.

If a laser is used in order to produce at least one etch-free pattern on a first conjugate portion with an etchable coating, it is inevitable that the laser beam produces the same pattern without an etchable coating on the second coated conjugate portion. etchable, except that the laser beam is stopped at the level of the first conjugated portion with an etchable coating, without reaching the second conjugated portion with an etchable coating, which in the state can not be achieved in a simple, reproducible manner and with a general scope and not limited.

However, it may be desired that the first etched-coated conjugate portion includes a pattern without an etchable coating, for example visible from outside the hollow body, while the second etched-coated conjugate portion is devoid of this pattern or includes a second pattern. without an etchable coating different from the first, where appropriate visible from the outside of the hollow body.

Document FR-A-2482495 discloses the manufacture of a hollow body with one or more holes consisting in introducing into the interior space of the powder, particles or grains which prevent the energy beam which impacts the hollow body in order to carry out the the holes do not attack the exit surface. EP-A-753373 relates to a laser barrier material and the method of its implementation, developing the same technique but using sodium chloride. These documents describe a technique that is not suitable for producing a pattern by localized removal of a coating from the inner face of a hollow body such as a bottle or the like for perfumery or cosmetics.

The invention aims to provide a technical solution to the problems posed above.

For this purpose, according to a first aspect, the invention relates to a method for producing a pattern by localized removal of a coating on a body which: - is hollow, forms an interior space and is limited by a peripheral wall in a transparent or translucent material capable of being traversed by a laser beam, provided with an opening, a first peripheral wall portion having, arranged in relative relation with respect to it, a second peripheral wall portion, these two portions being said conjugate, - comprises on at least one pair of engraved coating conjugate portions of at least one of the inner and outer faces of the peripheral wall, at least one layer of an etchable coating forming a body with the wall adjacent device, such as: o the first etched coating conjugate portion includes at least one non-etchable coating unit, o the second ethable coated conjugate portion is devoid of the at least one pattern without an etchable coating, in which: - there is available a body having at least one pair of conjugate portions with etchable coating then devoid of pattern without etchable coating, - a laser providing a beam is available laser chosen as to its characteristics and its methods of implementation to be able to impact the etching coating so as to remove the etchable coating in the impact zone and form the at least one pattern without etchable coating ,, - at the disposal of pieces of a solid material, in the divided state, able to be juxtaposed to a thickness that is then able to form a barrier for the laser beam, - pieces of the material are placed in the interior space of the hollow body forming a barrier and they are arranged at least opposite an impact zone of the first conjugated portion with an etchable coating and along an axis of the laser beam according to the form of the at least one unit without an etchable coating to be produced, the first conjugate portion with an etchable coating is subjected to the impact of the laser beam, from outside the hollow body, according to a path determined according to the shape of the less a pattern without etchable coating to achieve and is thus achieved at least one pattern, - once the at least one pattern without etchable coating thus produced, it empties the interior space of the pieces of the barrier material, so that the beam laser, stopped by the barrier material, does not impact the second conjugate portion etchable coating and thus does not remove etchable coating in this second conjugate portion.

According to one embodiment, a non-etchable pattern is formed which is separated from the rest of the etchable coating by a boundary constituting the outer periphery of the pattern without etchable coating.

According to another embodiment, a non-etchable pattern is formed which is continuous and of generally annular or pseudo-annular shape, so as to form and thus delimit a complementary pattern with an etchable coating, the pattern without an etchable coating being separated from the main part coating material etched by an external boundary at its outer periphery and being separated from the complementary pattern with etchable coating by an inner boundary at its inner periphery forming the outer boundary of the complementary pattern at its outer periphery. According to the embodiments, a pattern without etching coating which is visible from outside the hollow body and from an assembly including the hollow body and other means, such as closure means associated with the hollow body or a pattern without an etchable coating which has been invisible since the outside of the hollow body and / or from an assembly including the hollow body x and other means, such as closure means associated with the hollow body.

According to the embodiments, either a body having at least one pair of conjugated portions having a previously made etchable coating is available, or a body devoid of conjugate portions with an etchable coating is available and, in a preliminary stage of the process, coating is carried out. least one of the faces of the peripheral wall of two conjugate portions of at least one layer of a gravable coating forming a body with the adjacent peripheral wall.

According to the embodiments, there is provided a body which, in a face having an etchable coating where the at least one pattern without an etchable coating is to be formed, is flat or substantially flat or curved or tormented, is smooth or has reliefs.

According to a first embodiment, there is provided a body having at least one conjugate portion with a burnable coating located on the side of the inner face of the peripheral wall, towards the interior of the body, in the interior space. According to a second embodiment, there is provided a body having at least one conjugate portion with a burnable coating located on the side of the outer face of the peripheral wall, towards the outside of the body.

According to a third embodiment, there is provided a body having at least one conjugate portion with a burnable coating located on the side of the inner face of the peripheral wall, towards the inside of the body, in the interior space and at least a portion conjugated etching coating located on the side of the outer face of the peripheral wall, outwardly of the body. In this embodiment and according to a first variant, the at least one conjugate portion with etchable coating located on the side of the inner face of the peripheral wall and the at least one conjugate portion with etchable coating located on the side of the outer face of the peripheral wall. , 30 are arranged relative to each other. According to a second variant, they are arranged in a relative manner spaced relative to the vis-à-vis.

According to the embodiments, pieces of barrier material in the form of balls or pseudo-balls, in particular a barrier material of steel, for example 100Or6 steel, with a diameter of 35 mm, are available. order of a few millimeters, more especially of the order of 2.5 millimeters.

In one embodiment, the interior space of the hollow body is filled with the pieces of the barrier material, so that the pieces of the barrier material are disposed between the etched coating conjugate portions. More specifically, all or substantially all of the interior space of the hollow body 40 is filled with the pieces of the barrier material.

According to one embodiment, after placing pieces of the barrier material in the interior space of the hollow body and while the first conjugate portion with an etchable coating is subjected to the impact of the laser beam, the opening of the hollow body and the evacuation is allowed through the opening and open gases, vapors and fumes produced. More specifically, a gas is blown towards the opening of the hollow body to assist the evacuation of the gases, vapors and fumes produced.

In one embodiment, after emptying the interior space of the pieces of barrier material, the interior space is cleaned.

In the case of the first embodiment, and according to one embodiment, the method comprises a step of arranging in the interior space of the body, on the side of and on the inner face of the peripheral wall, and opposite the location of the at least one non-etchable pattern a layer of appearance material. In one embodiment, a body having a peripheral glass wall or the like is selected.

According to a development of the process, after having, in a first phase, constituted the at least one first unit without an etchable coating on the first conjugated portion with an etchable coating, a second phase similar to the first phase is produced to constitute at least one second pattern without etchable coating on the second conjugate portion with etchable coating.

According to one embodiment, a constituent body of a container adapted to contain a certain content is chosen.

According to a second aspect, the subject of the invention is a method for producing an assembly containing -containing -capping means, comprising: a hollow body constituting a container, as described above, forming an interior space, limited by a peripheral wall of a transparent or translucent material capable of being traversed by a laser beam and provided with an opening, 25 - a certain content filling the interior space of the container, - closure means able to cooperate with the opening and to allow the distribution of the certain content, wherein, successively: - the method is used to achieve a pattern by localized removal of a coating on the body previously described, 30 - after the at least one pattern without etchable coating was made and that the interior space was emptied of pieces of the barrier material, the interior space is filled with the certain content and made ooperating the closure means with the opening, the hollow body constituting the container includes in a first conjugate portion at least one pattern without etchable coating, the second conjugate portion being devoid of the at least one pattern without etchable coating.

According to the embodiments, when the closure means is made to cooperate with the opening, the mask is not masked without an etchable coating, so that it is visible from the outside of the assembly, including the hollow body. or mask the pattern without an etchable coating, so that it is invisible from outside the assembly including the hollow body.

According to one embodiment: a hollow body constituting a flask or the like for perfumery or cosmetics is chosen, the certain content is chosen to be a perfumery or cosmetic product, and a container containing content is produced; means of capping, for perfumery or cosmetics. 10

According to a third aspect, the invention relates to an installation for producing a pattern by localized removal of a coating on a hollow body bounded by a peripheral wall of a transparent or translucent material capable of being traversed by a laser beam, by implementation of the method described above, which comprises: hollow body support means comprising a burnable coating on which a pattern is to be produced by localized removal of a coating, a laser providing a laser beam chosen as to its characteristics and as to its implementation in order to be able to impact the etchable coating so as to remove the etchable coating in the impact zone and constitute the at least one pattern without an etchable coating, - relative displacement means, capable of submitting the first conjugated portion with a coating that can be etched at the impact of the laser beam, according to a determined path according to the shape of the at least one pattern without an etchable coating to be produced, and means capable of emptying the interior space of the body of the pieces of barrier material that are therein.

According to one embodiment, the installation comprises means capable of blowing a gas towards the opening of the hollow body to assist the evacuation of the gases, vapors and fumes produced, rendered active at least substantially at the same time as the laser. According to one embodiment, the installation comprises means capable of cleaning the interior space, rendered active after implementation of the means capable of emptying the interior space of the pieces of the barrier material.

According to a fourth aspect, the invention relates to a body having a pattern by localized removal of a coating, obtained by the process for producing a pattern by localized removal of a coating previously described, which: - is hollow, forms an inner space and is limited by a peripheral wall of a transparent or translucent material and adapted to be traversed by a laser beam, provided with an opening, a first peripheral wall portion having, arranged in a relative manner vis-à- A second peripheral wall portion, said two portions being said to be conjugate, has on at least one pair of conjugate portions with an etchable coating of at least one of the faces of the peripheral wall, at least one layer of a gravable coating forming a body with the adjacent peripheral wall, such that: the first conjugate portion with an etchable coating includes at least one pattern without an etchable coating, O the second conjugate portion with an etchable coating is devoid of the at least one pattern without an etchable coating.

According to the embodiments, a pattern without an etchable coating is separated from the rest of the etchable coating by a boundary constituting the outer periphery of the pattern without etchable coating, or a pattern without an etchable coating 40 is continuous and of generally annular or pseudo-annular shape, so as to forming and delimiting a complementary pattern with etchable coating, the pattern without etchable coating being separated from the main part by an outer boundary at its outer periphery and being separated from the complementary pattern with etchable coating by an inner boundary at its inner periphery forming the outer boundary complementary pattern at its outer periphery. According to the embodiments, a body comprises a pattern without an etchable coating visible from the outside of the hollow body and / or a pattern without an invisible etchable coating from outside the hollow body.

According to a first embodiment, the body comprises at least one conjugate portion with an etchable coating located on the side of the inner face of the peripheral wall, towards the interior of the body, in the interior space.

According to a second embodiment, the body comprises at least one conjugate portion with an etchable coating located on the side of the outer face of the peripheral wall, towards the outside of the body.

According to a third embodiment, the body comprises at least one conjugate portion with an etchable coating located on the side of the inner face of the peripheral wall, towards the inside of the body, in the interior space and at least one conjugate portion with a burnable coating located on the side of the outer face of the peripheral wall, towards the outside of the body.

In one embodiment, the peripheral wall is made of glass or the like.

According to one embodiment, the body further comprises, in the interior space, on the side of and on the inner face of the peripheral wall, and facing the location of the at least one pattern without an etchable coating, a layer of aspect. In one embodiment, the etchable coating is at least one lacquer layer.

In one embodiment, the etchable coating is electrically and / or heat conducting and the etchless etch pattern forms and delineates a complimentary pattern with etchable coating, electrically conductive and / or heat separated from the main part of the etchable coating, this complementary pattern forming an electrical and / or thermal circuit.

According to one embodiment, the body is constitutive of a bottle or the like for perfumery or cosmetics.

According to a fifth aspect, the subject of the invention is a container-containing-sealing means assembly comprising: - a hollow body having a pattern by localized removal of a coating as described above, - a certain content filling the space inside the container, - closure means able to cooperate with the opening and to allow the distribution of the certain content, the constituent hollow body of the container including in a first conjugate portion at least one pattern without an etchable coating, the second conjugate portion being devoid of the at least one pattern without an etchable coating.

According to the embodiments, the pattern without an etchable coating is visible from the outside of the assembly including the hollow body or the pattern without an etchable coating is invisible from the outside of the assembly including the hollow body, being masked by the means capping.

According to one embodiment: the hollow body constitutes a bottle or the like for perfumery or cosmetics, the certain content is a perfumery or cosmetic product, and the container-content-capping means assembly is for perfumery or cosmetics.

Several possible embodiments of the invention will now be described with the help of the drawings, in which: FIG. 1A is an external, elevated, cutaway view of a first face of a container-content-means assembly; capping, according to the invention, comprising a hollow body forming, in this case a bottle for perfumery or cosmetics, the first face of the peripheral wall includes on its inner face a pattern here visible from outside the the container-containing-content-clogging means and more especially from outside the hollow body, the pattern being here represented in white as opposed to a layer of an engravable coating here represented in dark, a certain content filling the space inside the container and closure means cooperating with an opening and to allow the distribution of certain content,

FIG. 1B is a view similar to that of FIG. 1A, but not cut away, of a second face of a container-containing-contents-closure means assembly, the second face of the peripheral wall of which is conjugated with the first face; of Figure 1A, is devoid of the visible pattern on the first side,

FIG. 2 is a view similar to that of FIGS. 1A and 1B, not broken away, of a third face of a container-containing-contents-closure means assembly, this third face connecting the first face and the second face of the peripheral wall; . FIGS. 3A and 3B are two external views, in elevation, similar to FIGS. 1A and 1B, not broken away, respectively of a first face and of a second face of a container body, the first face of which includes a first pattern visible from the outside of the container-content-clogging means and whose second face includes firstly a second visible pattern from outside the container-contents-clogging means, the first reason and the second pattern being of different shapes but located in the same pair of conjugate portions of the peripheral wall, and, on the other hand a third invisible pattern from outside the container-content-closure means assembly, to be masked by the closure means, - Figures 4A, 4B, 4C and 4D are four schematic views of the hollow body of the assembly containing - content - capping means, in section through an axial plane, illustrating three steps of the pro assigned to achieve a pattern by localized removal of a coating on a body according to the invention, namely, respectively, a step where there is available a body having at least one pair of conjugate portions with etchable coating then devoid of pattern without an etchable coating and pieces of a solid material, in the divided state, capable of forming a barrier for a laser beam, (FIG. 4A), a stage in which the interior space of the hollow body has been filled with pieces of the barrier material (FIG. 4B), a step in which the first etched coating conjugate portion of the body is subjected to the impact of the laser beam and thus constitutes a pattern (FIG. 4C), and a step where, the pattern being constituted, emptying the interior space of the pieces of barrier material that were there (Figure 4D), - Figure 5 is an enlarged partial view of Figure 3C, illustrating the barrier function for the laser beam pieces of solid material, in the divided state, filling the interior space of the hollow body.

An assembly 1, containing - content - capping means, comprises, first, a rigid body, hollow 2, having a pattern by localized removal of a coating as exposed.

The hollow body 2 is constitutive of a container, such as a bottle or the like for perfumery or cosmetics. But, of course, the invention also aims at functionally similar embodiments (for example and not limited to the medical). The hollow body 2 forms an interior space 3. It is limited by a peripheral wall 4, in a transparent or translucent material and adapted to be traversed by a laser beam, for example glass or the like.

The hollow body 2 has an opening 5, the peripheral wall 4 being provided.

The assembly 1 comprises, secondly, a certain content C filling the interior space 3 of the container or hollow body 2. This content C is typically a perfumery or cosmetic product, in the fluid state, all 1 being intended for perfumery or cosmetics. The assembly 1 comprises, thirdly, closure means 6 adapted to cooperate with the opening 5 and allow the distribution by it of the certain content C.

These plugging means 6 are typically a removable plug, a mobile distributor, a pump or any other fixed or mobile plugging means, fixed or removable, adapted to the certain content C.

As regards the peripheral wall 4, at least one pair of peripheral wall portions referred to as conjugates 7a and 7b is defined. Two such contiguous peripheral wall portions 7a and 7b are arranged facing each other relative to each other, spaced from each other and separated from one another by 3. In other words, two such contiguous peripheral wall portions 7a and 7b are constituted by the two zones of the peripheral wall 4 situated around the intersections of the peripheral wall 4 with a substantially radial axis AA, as shown on FIG. Figure 2.

One or more pairs of conjugated peripheral wall portions 7a and 7b can be defined. In the figures, the peripheral wall 4 is shown with a pseudo-parallelepipedal general shape, of axis XX, a bottom 8, transverse, a first face 9a, a second face 9b, a third face 9c and a fourth face 9d, each defining a portion of the peripheral wall 4, a generally cylindrical collar 10 delimiting the opening 5, located opposite the bottom 8, along the axis XX, connected to the faces 9a, 9b, 9c and 9d 35 by a transverse shoulder 11.

In the figures, the first face 9a and the second face 9b are substantially parallel to each other and they are facing each other, spaced apart and separated by the interior space 3. According to the preceding meaning, they can be described as conjugates. , also being disposed substantially at a transverse axis AA. Likewise, two portions facing conjugate faces 9a and 9b can also be called conjugates. This particular general shape of the body 2 and the peripheral wall 4, however, is in no way limiting and exclusive of other forms, provided that the peripheral wall 4 comprises at least one pair of conjugate portions 7a and 7b. If in the figures, the faces 9a, 9b, 9c and 9d of the peripheral wall 4 and its pairs of conjugate portions 7a and 7b are represented substantially flat and smooth, this form is however not in any way limiting and exclusive of other shapes. , one or more faces of the peripheral wall 4 and one or more conjugate portions 7a, 7b, which may be curved or even of tormented shape and / or comprise on one or both sides protruding or recessed reliefs.

If in the figures, the peripheral wall 4 and its pair or pairs of conjugate portions 7a and 7b are represented with substantially the same constant thickness, this embodiment is however in no way limiting and exclusive of other embodiments, the thickness of the wall 4 peripheral may vary around the body 2, especially in the same conjugate portion 7a or 7b, or the thickness of the peripheral wall 4 in the two conjugate portions 7a, 7b, which may be different from one another.

The assembly 1 and more especially the container or hollow body 2 comprises, fourthly, being an integral part of the body 2, a layer of an etchable coating 12, forming a body with the adjacent peripheral wall 4, especially on at least one pair of conjugate portions 7a and 7b. For this reason, this pair of conjugate portions 7a and 7b is called a pair of etchable coated conjugate portions 14a and 14b.

Engravable means the ability, under the effect of a suitable laser beam, to be attacked with removal of material. This removal of matter proceeds from a total ablation. A layer of an etchable coating is therefore such that, under the effect of a suitable laser beam, it is etched with removal of the coating material, without affecting the peripheral wall 4 adjacent to the impact zone of the laser beam.

The term "layer of an etchable coating" is used to denote that the layer in question has not been engraved, whether intended or not, or, on the contrary, that it has been etched.

It is understood that the layer of the etchable coating 12 may be a single layer or a layer composed of several layers - or superimposed sub-layers.

The etchable coating layer 12 may be, typically, a lacquer layer, as described in FR-A-2851940 and FR-A-2889485.

Where appropriate, the etchable coating is conductive of electricity and / or heat.

If in the figures, the layer of an etching coating 12 is represented continuously and homogeneously on all or almost all of the peripheral wall 4 and applied and forming a body on its inner face 13a, this embodiment, although particularly attractive , however, is by no means limiting and exclusive of other achievements. Indeed, the layer of an etchable coating 12 may be discontinuous and / or heterogeneous and / or relate only to a portion of the peripheral wall 4, provided that it relates to at least one pair of conjugate portions 14a and 14b, and / or and applied and being integral with the outer face 13b of the peripheral wall 4.

Where appropriate, even a first layer of an etchable coating 12 is applied and being integral with its inner face 13a and a second layer of an etchable coating is applied and integral with its outer face 13b.

By inner face 13a of the peripheral wall 4 is meant the face of the peripheral wall 4 which lies towards the inside of the body 2, that is to say in the interior space 3. By outside surface 13b is meant of the peripheral wall 4, the face of the peripheral wall 4 which lies towards the outside E of the body 2, outside the interior space 3, where a user or an observer is located.

When there is a body 2 having at least one convertible portion with a gravizable coating located on the side of the inner face 13a and at least one conjugate portion with a gravizable coating located on the side of the outer face 13b, it is understood that each portion is part of a pair of etchable coated conjugate portions 14a and 14b, respectively a pair located on the inner side 13a side and a pair on the outer side 13b side. This arrangement makes it possible to give the invention the greatest flexibility and to widely multiply the possible arrangements of patterns. On the other hand, in this case, according to a first variant, the at least one conjugate portion with an etchable coating situated on the side of the inner face 13a and the at least one conjugate portion with an etchable coating located on the side of the outer face 13b are arranged in relative manner vis-à-vis, while according to a second variant, they are arranged in a relative manner spaced relative to the vis-à-vis.

In the embodiments shown in the figures, the layer of an etchable coating 12 is at least partly visible by an observer from the outside E of the hollow body or container 2 and from outside the assembly 1.

In the variant of FIG. 1A, the first conjugate portion with etchable coating 14a in the zone of which a pattern 15 without an etchable coating is produced is visible by such an observer from the outside E of the hollow body or containing 2 and from the exterior of the assembly 1. In the variant of FIG. 3A, the first conjugate portion with etchable coating 14a in the zone of which a third pattern 15a is produced without an etchable coating is visible by such an observer from outside the body E hollow or container 2, but invisible from outside the assembly 1, being masked by the opaque closure means that cover it. The layer of an etching coating 12 is integral with an inner, outer face 13a, 13b of the peripheral wall 4, so that it can not be detached from this peripheral wall 4 and removed from the hollow body or container 4, except, of course, where it is etched by a laser beam 16 forming part of the installation for carrying out the method, which laser beam 16, at the point of impact with the etchable coating of the etchable coating layer removed.

According to the embodiments, for the implementation of the method for producing a pattern by localized removal of a coating on a hollow body or containing 2, there is available such a hollow body or containing 2 having already at least one pair of conjugate portions With etchable coating 14a and 14b previously made, or one having such a hollow or containing body 2 free of encrusted coating conjugate portions and, in this case, in a preliminary step of the method for producing a pattern by localized removal of a coating and integrated therewith, the peripheral wall 4 is coated with at least one pair of etchable coating conjugate portions 14a and 14b. As shown in FIGS. 1A and 1B, the first conjugated portion 14a and 14b of a pair of etchable coated conjugate portions includes at least one etchless etchable pattern, visible from the outside E of the hollow body or container 2 and of the assembly 1, whereas, in combination, the second conjugated portion with etchable coating 14b of the same pair of conjugate portions with etchable coating 14a and 14b is itself devoid of the at least one pattern without etchable coating and a similar pattern.

The pattern 15 without an etchable coating is here identifiable and visible from the outside E of the hollow body or container 2, for the reason that it is in visual contrast of color with respect to the etchable coating of the etching coating layer 12. For example the etchable coating layer 12 is black in color or is dark, while the pattern is transparent or light in color or is like the certain content C, itself transparent or light in color.

The term "pattern" means one or more points, segments, straight lines or curves, surfaces, or combinations thereof. Such a pattern forms one or more letters, numbers, signs, acronyms, marks, codes, drawings, decor ...

Pattern 15 may have a decorative or artistic purpose. It may have a primarily utilitarian purpose, for example brand, origin, composition of certain C content, or code.

It may have a purpose that is technically functional, for example constituting a physical separation forming a partition between adjacent but distinct and separate zones of the etchable coating layer 12. Such physical separation may constitute a solution of continuity (interruption) of order electrical or thermal, when one seeks to achieve an electrical circuit and / or thermal, the etchable coating being conductive of electricity and / or heat.

Where appropriate, pattern 15 may combine several purposes.

The etchless etch pattern 15 is separated from the remainder of the etchable coating layer 12 by a boundary 17 forming the outer periphery of the pattern 15 (Figs. 3A and 3B).

The pattern without etchable coating 15 may, in one embodiment, be continuous and generally annular or pseudo-annular shape, so as to form and thus delimit a complementary pattern with etchable coating 18, the pattern without etchable coating 15 being separated from the part main coating material etched by an outer boundary 17 at its outer periphery and being separated from the complementary pattern with etchable coating 18 by an inner boundary 19 at its inner periphery forming the outer boundary 19 of the complementary pattern 18 at its outer periphery (Figure 1A). In such a case, the desired pattern with respect to the hollow body or container 2 or the assembly 1 is either the pattern 15 or the pattern 18, or the combination of the two patterns 15 and 18.

This embodiment, combined with the case of an electrically conductive and / or heat etchable coating, allows a non-etchable pattern, such as the third ethable non-etchable unit 15a of FIG. 3A, to form and delimit a complementary pattern with etchable coating 18a, conducting electricity and / or heat, separated from the main part of the etchable coating, this complementary pattern 18a forming an electrical circuit and / or thermal (Figure 3A). As previously indicated, these patterns 15a and 18a are invisible from the outside of the assembly 1, being masked by the opaque capping means 6 which cover it.

The method for making such a pattern by localized removal of a coating on a hollow body or containing 2 on a first etched coating conjugate portion 14a, while the second ethable coated conjugate portion 14b of the same pair of coated conjugate portions etchable 14a and 14b is devoid of such a pattern without an etchable coating, is such that a hollow or containing body 2 having a pair of etchable coated conjugate portions 14a and 14b is provided which is then devoid of a pattern without an etchable coating.

There is available a laser (20) providing a laser beam (16) selected as to its characteristics and its implementation to be able to impact the etchable coating in the first conjugate portion etchable coating 14a, so as to remove the etchable coating in the impact zone 21 of this first conjugate portion with etchable coating 14a and thus constitute, and thus achieve, the pattern without etchable coating 15, this operation does not affect the peripheral wall 4 adjacent to the impact zone 21. The laser 20 is disposed outside the hollow body or container 2.

The characteristics of the laser 20 and the laser beam 16 to be taken into account include its type, its power, its wavelength, its size, etc.

The characteristics of the implementation modalities of the laser 20 and the laser beam 16 to be taken into account include the duration of the impact, the speed of displacement of the impact, etc.

Knowing the characteristics of the hollow body or container 2, the layer 14 of etchable coating, the pattern 15 to achieve, it is within the reach of those skilled in the art or firms offering for sale lasers to define the characteristics of the laser 20 and the laser beam 16 to choose and the characteristics of the methods of its implementation.

Pieces 22 of a solid material, in the split state, are also available.

These pieces 22 of a solid material, in the divided state, are able to be juxtaposed to a thickness P (depth with respect to the impact) that is then capable of forming a barrier for the laser beam 16.

These pieces 22 of a barrier material are, in one embodiment, in the form of beads or pseudobeads, more or less spherical with a diameter of the order of a few millimeters, more particularly of the order of 2.5 millimeters. These pieces 22 of a barrier material are, in one embodiment, steel, for example 1000r6 steel.

The embodiment which has just been described of pieces of a barrier material is however in no way limiting and exclusive of other functionally equivalent embodiments.

In one step of the process (FIG. 4A), the pieces 22 of the barrier material are placed in the interior space 3 of the hollow or containing body 2 and are arranged at least opposite the zone of the first coated conjugate portion. etchable 14a to be impacted by the laser beam 16 and along the axis A'A 'of the laser beam 16. For example, the interior space 3 is filled with the pieces 22 of the barrier material, so that the pieces 22 of the barrier material are disposed between the etchable coating conjugate portions 14a and 14b. More especially still, all or substantially all the interior space 3 is filled with the pieces 22 of the barrier material (FIG. 4B).

Such filling can be carried out in any suitable manner and with any device provided for this purpose, for example manually or by means of a pouring chute with disconnecting member.

If necessary, with the filling is combined a settlement of the pieces 22 of the barrier material, especially in the case the barrier effect can be obtained only by the presence of pieces 22 of the barrier material between the conjugated portions with etchable coating 14a and 14b. Such packing can be achieved by shaking the hollow body or container 2 during its filling.

In a subsequent step of the process (FIG. 4C), the first etched-coating conjugate portion 14a is subjected to the impact of the laser beam 16, according to a path determined according to the shape of the pattern without an etchable coating 15 to be produced. The laser 20 is then located outside the hollow body or container 2.

The laser beam 16 impacts the first etched coating conjugate portion 14a and in the impact zone 21, the etchable coating is removed, thereby forming the pattern 15.

In a subsequent step of the process (FIG. 4D), once the pattern without etchable coating 15 thus constituted and produced, the interior space 3 of the pieces 22 of the barrier material is emptied. This operation can be performed by reversing the hollow body or container 2 which was previously disposed with its opening 5 in the upper position, so as to bring the opening 5 in the lower position. This operation can also be performed by aspiration.

Referring now to FIG. 5, this figure illustrates that the laser beam 16 from the laser 20 passes through the peripheral wall 4 from the outside and then attacks the etching coating layer 12 until it is removed from the zone impact 21, then continues along the axis A'A 'sinking into the barrier mass of the laser beam 16, consisting of the pieces 22 of the barrier material. The laser beam sinks into the barrier mass formed by the pieces 22 of the barrier material over a depth P, such that the laser beam 16 is finally totally absorbed.

Consequently, in the axis A'A 'of the laser beam 16, there is no longer any laser beam 16 beyond the depth P, very much less than the distance separating the first conjugate portion 14a of the second conjugate portion 14b with etchable coating. Thus, the laser beam 16 which made it possible to remove the etchable coating in the first etchable coating conjugate portion 14a, to constitute and produce the pattern 15, does not reach the second conjugate portion with etchable coating 14b and as soon as when does not remove etchable coating in it. Attack of the etchable coating of the first etchable coated conjugate portion 14a and etching of the constituent material of the pieces 22 of the barrier material is a source of production of gases, vapors and fumes in the interior space 3 for etchable coating of the first conjugate portion with etchable coating 14a when it is located on the inner face 13a (arrows F in Figure 5). The process for producing the pattern 15 provides for the evacuation of these gases, vapors and fumes out of the interior space 3. For this purpose, a gas can be blown towards the opening 5 of the hollow body or container 2 to assist this process. evacuation, creating a suction vacuum. This realization is however in no way limiting and exclusive other functionally equivalent achievements.

The method also includes a step after emptying the interior space of the pieces of barrier material, comprising cleaning the interior space 3, to remove any residue from the previous presence of the pieces 22 of the barrier material. and for the action of the laser beam 16. For this purpose, it is possible to pass through the interior space 3 a cleaning fluid, and then the interior space 3 can be dried. This embodiment is however in no way limiting and exclusive of other functionally equivalent embodiments.

According to one possible development, the method also comprises a step of arranging in the interior space 3, on the side of and on the inner face 13a of the peripheral wall 4, and vis-à-vis the pattern without etchable coating 15, a layer of appearance material, visible from the outside of the hollow body or container 2 and from outside the assembly 1, at the location of the pattern without etchable coating 15. This development makes it possible to impart to the uncoated pattern The color or appearance of this layer of appearance material can be etched, thereby increasing the possibilities of possible patterns.

The method which has just been described has been in the case of a pattern 15. This embodiment is however not limited and exclusive embodiments in which several patterns are made 15.

With reference to FIGS. 3A and 3B which illustrate that, after having, in a first phase, constituted and produced a first etchless etchable pattern on the first etched-coating conjugate portion 14a (FIG. 3A), it is possible to realize a second phase similar to the first phase to form a second pattern without etchable coating on the second conjugated portion etchable coating 14b (Figure 3B). The first pattern and the second pattern thus produced may be identical or different, in the same relative arrangement or not.

With regard to the method of producing an assembly 1, the method of producing a pattern is firstly carried out by localized removal of a coating on the hollow body or container which has just been described.

Then, after the pattern without an etchable coating 15 has been formed and the interior space 3 has been emptied of the pieces 22 of the barrier material, the interior space 3 is filled with the certain content C and the means of capping 6 with opening 5.

An installation for producing a pattern by localized removal of a coating on a hollow body or container and to implement the corresponding method firstly comprises support means 23 of body 2 during the production of the pattern 15, which are associated with means for supplying the body to be treated and means for evacuating the treated bodies. The installation then comprises a laser 20, adapted as indicated.

The installation then comprises means 24 able to place in the interior space 3 of the hollow body or containing the pieces 22 of the barrier material and to arrange them appropriately. The installation then comprises relative displacement means 25 capable of subjecting the first etched coating conjugate portion 14a to the impact of the laser beam 16, in a path determined according to the shape of the pattern without etchable coating 15 to be produced. and build. For example, the body support means 23 remain fixed and the laser beam 16 is displaced, or conversely, the body support means 23 are displaced and the laser beam 16 remains fixed,

The installation then comprises means 26 able to empty the interior space 3 of the hollow body or containing 2 pieces 22 of the barrier material therein.

Where appropriate, the installation also comprises means 27 able to evacuate the gases, vapors and fumes produced, such as means for blowing a gas towards the opening 5 of the hollow body 2, made active at least substantially simultaneously with the laser 20.

If necessary, the installation also comprises means capable of cleaning the interior space 3, rendered active after use of means capable of emptying the interior space of the pieces 22 of the barrier material.

The invention is also directed to a body having a pattern by localized removal of a coating, obtained by the method previously described, such that a first conjugate portion with a burnable coating 14a includes at least one pattern without an etchable coating 15, while the second Engraved coated conjugate portion 14b is devoid of such a pattern without an etchable coating.

The invention also relates to a set 1 containing - content - sealing means comprising such a hollow body or containing 2.25

Claims (50)

REVENDICATIONS1. Method for producing a pattern (15) by localized removal of a coating on a body (2) which: - is hollow, forms an interior space (3) and is limited by a peripheral wall (4) of transparent or translucent material and adapted to be traversed by a laser beam (16), provided with an opening (5), a first portion (7a) of peripheral wall (4) having, arranged relative to each other, a second portion (7b) of peripheral wall (4), these two portions (7a, 7b) being said conjugate, - comprises on at least one pair of conjugate portions with etchable coating (14a, 14b) of at least one of the faces inner and outer wall (13a, 13b) of the peripheral wall (4), at least one layer of an etchable coating (12) forming a body with the adjacent peripheral wall (4), such as: o the first conjugate portion with an etchable coating (14a) includes at least one pattern without an etchable coating (15), wherein the second portion uguée with etchable coating (14b) is devoid of the at least one pattern without etchable coating (15), wherein: - a body (2) having at least one pair of etchable coated conjugate portions (14a, 14b) is provided then devoid of a pattern without etchable coating (15), - a laser (20) is provided providing a laser beam (16) selected as to its characteristics and its methods of implementation to be able to impact the etchable coating in order to remove the etchable coating in the impact zone (21) and to form the at least one pattern without an etchable coating (15), - pieces (22) of a solid material are available in the state divided, able to be juxtaposed to a thickness to form a barrier for the laser beam (16), - is placed in the interior space (3) of the hollow body (2) pieces of barrier material and is available at least next to an impact zone (21 ) of the first conjugate portion with etchable coating (14a) and along an axis A'A 'of the laser beam (16) determined according to the shape of the at least one pattern without etchable coating (15) to be produced, - the first portion is subjected to combined with etchable coating (14a) at the impact of the laser beam (16), from the outside of the hollow body (2) according to a path determined according to the shape of the at least one pattern without etchable coating (15) to be produced and thus making this at least one pattern (15), - once the at least one pattern without etchable coating (15) thus produced, emptying the interior space (3) of the pieces (22) of the barrier material, so that the laser beam (16), stopped by the barrier material, does not impact the second etch-coated conjugate portion (14b) and thus does not remove etchable coating in the second conjugate portion (14b). A process for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 1, wherein a pattern without an etchable coating (15) is formed which is separated from the rest of the etchable coating by a boundary (19) constituting the outer periphery of the pattern without etchable coating (15). 3. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 1, wherein a non-etchable pattern (15) is formed which is continuous and generally annular or pseudo-shaped. annular, so as to form and thus delimit a complementary pattern with etchable coating (18), the pattern without etchable coating (15) being separated from the main etchable coating portion by an outer boundary (17) at its outer periphery and being separated from the complementary pattern with etching coating by a boundary (19) internal to its inner periphery forming the outer boundary (19) of the complementary pattern (18) at its outer periphery. 4. A method for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 3, wherein is formed a pattern without etchable coating (15) which is visible from the outside of the hollow body (2) and from an assembly (1) including the hollow body (2) and other means, such as clogging means associated with the hollow body (2). 5. A method for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 3, wherein is formed a pattern without etchable coating (15) which has been invisible since the outside of the hollow body (2) and / or from an assembly (1) including the hollow body (2) and other means, such as clogging means (6) associated with the hollow body (2). 15 A process for producing a pattern (15) by locally removing a coating on a body (2) according to any one of claims 1 to 5, wherein either a body (2) having at least one pair of conjugate portions with etchable coating (14a, 14b) previously made or there is available a body (2) devoid of conjugated portions etchable coating and, in a preliminary stage of the process, is coated at least one of the faces (13a, 13b) of the peripheral wall (4) of two conjugate portions of at least one layer of an etchable coating (12) forming body (2) with the adjacent peripheral wall (4). 7. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 6, wherein there is available a body (2) which, in a face (13a, 13b) having an etchable coating where the at least one pattern without an etchable coating (15) is formed, is planar or substantially planar or curved or tormented, is smooth or embossed. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 7, wherein there is available a body (2) having at least one conjugate portion with etchable coating (14a) located on the side of the inner face (13a) of the peripheral wall (4), towards the inside of the body (2), in the interior space (3). A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 8, wherein there is available a body (2) having at least one conjugated portion with etchable coating (14a) located on the side of the outer face (13b) of the peripheral wall (4), towards the outside of the body (2). A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 9, wherein there is available a body (2) having at least one compound portion with etchable coating (14a) located on the side of the inner face (13a) of the peripheral wall (4), towards the inside of the body (2), in the interior space (3) and at least one conjugate portion with etchable coating (14a) located on the side of the outer face (13b) of the peripheral wall (4) towards the outside of the body (2). 10 45 11. A method for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 10, wherein there is available a body (2), the at least one conjugate portion with etchable coating on the side of the inner face (13a) of the peripheral wall (4) and the at least one conjugate portion with an etchable coating on the side of the outer face (13b) of the peripheral wall (4), are arranged in a relatively vis-a-vis. 12. A method for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 10, wherein there is available a body (2), the at least one conjugate portion with etchable coating on the side of the inner face (13a) of the peripheral wall (4) and the at least one conjugate portion with etchable coating on the side of the outer face (13b) of the peripheral wall (4), are arranged in a relative manner spaced apart compared to the vis-à-vis. Method for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 12, wherein pieces (22) of a material forming barrier in the form of balls or pseudo-balls. 14. Process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 13, wherein there are available pieces (22) of a material forming steel barrier. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 14, wherein pieces (22) of 1000r6 steel barrier material are available. 25 16. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 15, wherein there are available pieces (22) of a material forming barrier having a diameter of the order of a few millimeters, more particularly of the order of 2.5 millimeters. 30 17. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 16, wherein the interior space (3) of the body (2) is filled. hollow with the pieces of the barrier material, so that the pieces (22) of the barrier material are disposed between the etchable coated conjugate portions (14a, 14b). 35 18. Process for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 17, wherein all or substantially all the interior space (3) of the hollow body (2) is filled with the pieces (22) of the barrier material. 19. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 8 to 18 as dependent on claim 8, wherein after placed in the interior space (3) of the hollow body (2) of the pieces (22) of the barrier material and while the first etched coating conjugate portion (14a) is subjected to the impact of the laser beam (16). the opening (5) of the hollow body (2) is kept open and the evacuation (5) thus opened of the gases, vapors and fumes produced is allowed to be evacuated. 45 A method of making a pattern (15) by locally removing a coating on a body (2) according to claim 19, wherein a gas is blown towards the opening (5) of the hollow body (2) to assist evacuation of gases, vapors and fumes produced. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 20 as dependent on claim 8, wherein after emptying interior space (3) of the pieces (22) of the barrier material, the interior space (3) is cleaned. A method of making a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 8 to 21 as dependent on claim 8, which comprises a step of disposed in the interior space (3) of the body (2), on the side of and on the inner face (13a) of the peripheral wall (4), and facing the location of the at least one pattern without an etchable coating ( 15), a layer of appearance material. 23. A process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 22, wherein a body (2) having a peripheral wall (4) is selected. glass or the like. 24. Process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 23, wherein, after having, in a first phase, constituted the at least one first pattern without etchable coating (15) on the first etched-coating conjugate portion (14a), a second phase similar to the first phase is provided to provide at least one second etch-less pattern (15) on the second coated conjugate portion etchable (14b). 25. Process for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 1 to 24, wherein a body (2) constituting a container adapted to contain some content. 26. A method for producing an assembly (1) containing - content - closure means, comprising: - a hollow body (2) constituting a container, forming an interior space (3), limited by a peripheral wall (4) in a transparent or translucent material capable of being traversed by a laser beam (16) and provided with an opening (5), - a certain content filling the interior space (3) of the container, - capping means (6) adapted to cooperate with the opening (5) and to allow the distribution of the certain content, wherein, successively: - the method is implemented to achieve a pattern (15) by localized removal of a coating on the body (2 ) according to any one of claims 1 to 25, - after the at least one pattern without an etchable coating (15) has been formed and the interior space (3) has been emptied of pieces (22) of the barrier material , we fill the interior space (3) with the certain content and we make ooperating the closure means (6) with the opening (5), the hollow body (2) constituting the container includes in a first conjugate portion at least one pattern without etchable coating (15), the second conjugate portion being devoid of the less a pattern without an etchable coating (15). 27. A method for producing an assembly (1) containing - content - capping means according to claim 26, wherein, when the capping means (6) are cooperating with the opening (5), it is not masked. the pattern without etchable coating (15), so that it is visible from the outside of the assembly (1) including the body (2) hollow. 28. A method for producing a set (1) containing - content - capping means according to claim 26, wherein, when the capping means (6) are made to cooperate with the opening (5), the pattern is masked. without etchable coating (15), so that it is invisible from outside the assembly (1) including the body (2) hollow. 29. A method for producing a set (1) containing - content - capping means, according to any one of claims 26 to 28, wherein: - one chooses a hollow body (2) constituting a bottle or the like for the perfumery or cosmetics, - one chooses the certain content to be a product of perfumery or cosmetics, and a set (1) containing - content - means of capping, for perfumery or cosmetics. 30. Installation for producing a pattern (15) by localized removal of a coating on a hollow body (2) bounded by a peripheral wall (4) of a transparent or translucent material capable of being traversed by a laser beam (16) , by carrying out the method for producing a pattern (15) by localized removal of a coating according to any one of claims 1 to 25, which comprises: - support means (23) of the hollow body (2) comprising a etching coating on which a pattern (15) is to be produced by localized removal of a coating, - a laser (20) providing a laser beam (16) chosen as to its characteristics and its methods of implementation to be suitable impacting the etching coating so as to remove the etchable coating in the impact zone (21) and form the at least one pattern without an etchable coating (15), - means (24) suitable for placing in the interior space ( 3) body (2) creates ux pieces (22) of the barrier material and arrange them at least facing an impact zone (21) of the first conjugated portion with etchable coating (14a) and along an axis of the laser beam (16) determined according to the form of the at least one unit without an etchable coating (15) to be produced, - relative displacement means (25) capable of subjecting the first etched coating conjugate portion (14a) to the impact of the laser beam (16) according to a path determined according to the shape of the at least one pattern without etchable coating (15) to be produced, and means (26) capable of emptying the interior space (3) of the body (2) from the pieces (22) of the barrier material found therein. 31. Installation for producing a pattern (15) by localized removal of a coating on a body (2) according to claim 30, characterized in that it comprises means (27) capable of blowing a gas towards the opening (5) the body (2) hollow to assist the evacuation of gases, vapors and fumes produced, rendered active at least substantially simultaneously with the laser (20). 32. Installation for producing a pattern (15) by localized removal of a coating on a body (2) according to any one of claims 30 and 31, characterized in that it comprises means capable of cleaning the space interior (3), rendered active after use of means capable of emptying the interior space (3) of the pieces (22) of the barrier material. 33. A body (2) having a pattern (15) by localized removal of a coating, obtained by the process for producing a pattern (15) by localized removal of a coating according to any one of claims 1 to 25, which : - is hollow, forms an interior space (3) and is limited by a peripheral wall (4) of a transparent or translucent material able to be traversed by a laser beam (16) provided with an opening (5), a first peripheral wall portion (4) having, arranged relative to each other, a second peripheral wall portion (4), said two portions being said conjugate, - comprises at least one pair of coated conjugate portions etching (14a, 14b) of at least one of the faces of the peripheral wall (4), at least one layer of an etchable coating (12) forming a body (2) with the adjacent peripheral wall (4), such as that: o the first conjugate portion with an etchable coating (14a) includes the self In a pattern without an etchable coating (15), the second etchable-coated conjugate portion (14b) is devoid of the at least one etch-free pattern (15). A body (2) having a pattern (15) by localized removal of a coating according to claim 33, wherein a pattern without an etchable coating (15) is separated from the rest of the etchable coating by a boundary constituting the outer periphery of the pattern. without etchable coating (15). 35. A body (2) having a pattern (15) by localized removal of a coating according to claim 33, wherein a pattern without an etchable coating (15) is continuous and generally annular or pseudo-annular in shape, so as to constitute a complementary pattern with etchable coating, the pattern without etchable coating (15) being separated from the main part by an outer boundary at its outer periphery and being separated from the complementary pattern with etchable coating by an inner boundary at its inner periphery forming the outer boundary of the complementary pattern at its outer periphery. 36. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 35, wherein a pattern without an etchable coating (15) is visible from outside the body (2). ) hollow. 37. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 35, wherein a pattern without an etchable coating (15) is invisible from outside the body (2). ) hollow. 38. Body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 37, characterized in that it comprises at least one conjugate portion with etchable coating on the side of the inner face (13a) of the peripheral wall (4), towards the inside of the body (2), in the interior space (3). 39. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 38, characterized in that it comprises at least one conjugate portion with etchable coating on the side of the outer face (13b) of the peripheral wall (4), outwardly of the body (2). 40. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 39, characterized in that it comprises at least one conjugate portion with etchable coating on the side of the inner face (13a) of the peripheral wall (4), towards the interior of the body (2), in the interior space (3) and at least one conjugate portion with an etchable coating located on the side of the outer face (13b) the peripheral wall (4), towards the outside of the body (2). 41. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 40, characterized in that the peripheral wall (4) is made of glass or the like. 10 42. Body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 41, characterized in that it further comprises in the interior space (3) of the body ( 2), on the side of and on the inner face (13a) of the peripheral wall (4), and opposite the at least one pattern without etchable coating (15), a layer of appearance material, with the location of the at least one etch-free pattern (15). 43. Body (2) having a pattern (15) by localized removal of a coating according to Claim 42, characterized in that the layer of appearance material is continuous in the interior space (3) of the body (2). ), on the side of and on the assembly (1) of the inner face (13a) of the peripheral wall (4). 44. Body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 43, characterized in that the etchable coating is at least one layer of lacquer. 45. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 44, characterized in that the etchable coating is electrically and / or heat conducting. and in that the pattern without an etchable coating (15) forms and delimits a complementary pattern with etchable coating, electrically and / or heat-conducting, separated from the main part of the etchable coating, this complementary electrical circuit pattern and or thermal. 30 46. A body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 45, characterized in that it constitutes a bottle or the like for perfumery or cosmetics . 47. Set (1) containing - content - capping means comprising: - a hollow body (2) having a pattern (15) by localized removal of a coating according to any one of claims 33 to 46, constituting a container, - a certain content filling the interior space (3) of the container, - capping means (6) able to cooperate with the opening (5) and to allow the distribution of certain content. The hollow body (2) constituting the container including in a first conjugate portion at least one pattern without etchable coating (15), the second conjugate portion being devoid of the at least one pattern without etchable coating (15). 48. Set (1) containing - content - capping means according to claim 47, wherein the pattern 45 without etchable coating (15) is visible from outside the assembly (1) including the body (2) hollow. 20 49. Set (1) containing - content - closure means according to claim 47, wherein the pattern without etchable coating (15) is invisible from the outside of the assembly (1) including the body (2) hollow, being masked by the closure means (6). 50. Set (1) containing - content - capping means, according to any one of claims 47 to 49, wherein: - the hollow body (2) is a constituent of a bottle or the like for perfumery or cosmetics, - The certain content is a perfumery or cosmetic product, and the set (1) containing - content - capping means is for perfumery or cosmetics.