FR2889485A1 - Transparent or translucent container e.g. perfume bottle, decorating method for e.g. cosmetic field, involves forming lacquer coat on inner surface of container by spraying fog of enamel in powder or liquid form inside container - Google Patents

Abstract

The method involves forming a lacquer coat on an inner surface of a container e.g. perfume bottle, by spraying a fog of an enamel in the form of powder or liquid inside the container and by application of an electro-magnetic field around the container. The electro-magnetic field applied is of continuous or stop and go type. The fog is sprayed by using a spray nozzle that is introduced in the container. The nozzle is placed at an end of a spray tube and is constituted by a central line comprising three radial holes connected to a spray product container.

Description

2889485 1

  PROCESS FOR DECORATING A TRANSPARENT CONTAINER OR

TRANSLUCENT

  The present invention relates to a method of decorating a container and more particularly to a method for producing a decoration 5 inside the container.

  The aesthetics of the products is, today, an important element of choice for the contractors. Also, regardless of the field in which they practice, manufacturers seek to give their products the best possible aesthetic, so as to cause a shopping reflex by consumers.

  The field of fashion, jewelery, cosmetics, and perfumery is, of course, very concerned about the aesthetics of products and their possible packaging, and everyone has found that, including perfumers, seek to attract customers by bottles that are different from the competition by offering their perfumes in containers more and more aesthetic and original in their forms and decorations.

  The applicant has thus proposed in its patent FR 2 851 940 a new decoration process allowing the decoration of a bottle from the inside, which makes it possible to obtain a particularly elegant decoration and which is protected from external aggressions such as, for example , friction.

  With this method, it is possible to achieve an interior decoration comprising, for example, a single layer of decorative coating, associated if necessary with a transparent layer, serving as insensitive insensitive content often alcoholic or containing various chemicals cosmetics, or a layer comprising transparent or semi-transparent zones, or even different colors mixed together in structured or unstructured or structured manner, or even the realization of a decor of several colors, and different metallic aspects that can be as colorful .

  It would be interesting to improve this decorating process because some types of perfume that may fill the containers may be incompatible with the nature of the liquid and / or the powder making the decor.

  Thus, the method of decorating a transparent or translucent container made of glass or plastic material, intended for the field of cosmetics, for containing a liquid such as a perfume, or the like, in which the decoration is carried out inside of the container, is characterized in that it consists in producing at least one layer of lacquer on the inner surface of the container by spraying an enamel mist in the form of powder or liquid inside the container in order to obtain homogeneity of the enamel layer.

  With the method according to the invention this ensures a uniform distribution of the enamel deposited.

  According to a preferred embodiment of the invention, a step of applying an electromagnetic field around the container is carried out.

  According to a first variant, the electromagnetic field is applied around said receptacle simultaneously with enamel spraying.

  According to a second variant, the electromagnetic field is applied around the said container once the enamel spray has been carried out.

  According to a complementary feature of the invention, the enamel spray is made through a spray nozzle introduced into the container through its mouth.

  Advantageously, parallel to the enamel spraying, an aspiration is carried out to create a depression inside the container.

  Note also that the powdering of enamel is advantageously on a hot container too, in a step prior to the spraying step, it is proceeded to heating the container. Preferably, the heating will be performed in a range of 1500 to 800, depending on the needs and nature of the enamel components and their powder or liquid form.

  It should be added that, in an additional step following the spraying step, the powdered enamel is advantageously cooked. Preferably, this firing will be carried out between 400 and 800, also according to the needs and nature of the enamel components and their powder or liquid form.

  Preferably, in a subsequent step following the baking step, a cooling step is carried out.

  The invention also relates to a perfume container internally decorated by the decoration method as mentioned above, characterized in that the container is made of glass or plastic. In the case of a plastic container, the cooking and heating performed will be adapted according to the nature of said plastic material.

  Other features and advantages of the invention will become apparent from the following description given as non-limiting examples.

  The method of the invention is intended for the interior decoration of a transparent or translucent bottle, said container being able to be made of glass or plastic. The process is particularly well suited to decorating containers used in the field of cosmetics such as perfume bottles, eau de toilette, or cologne, or other containers, such as lipstick. , mascara, nail polish.

  According to the method of the invention, the decoration is carried out inside the latter, so as to cover the inner surface of a decoration, consisting of a coating. According to the decoration method, at least one lacquer layer is produced on the inner surface of the bottle by spraying an enamel mist in the form of powder or liquid inside the container and by applying a field electromagnetic around said container to obtain a homogeneity of the enamel layer. According to a first variant of the invention, the electromagnetic field is applied around said container simultaneously with enamel spraying.

  According to a second variant, the electromagnetic field is applied around the said bottle once the enamel spray has been carried out.

  The electromagnetic field applied around the flask will be continuous or stop type in go.

  The spraying is done by means of a spray nozzle introduced into the bottle through its mouth, the nozzle being disposed at the end of a spray tube and being constituted by a central pipe comprising, for example, a set of connected radial holes. to a tank containing the product to be sprayed. In addition, the spray tube comprises a peripheral suction channel. Of course, the spray nozzle may have any other construction.

  The principle is developed so that a permanent depression is created in the bottle, thus allowing the arrival in suspension of the enamel powder and its homogeneous distribution inside the latter, by means of precise settings of the flows powder and suction.

  The enamel powder is advantageously on a hot flask; also, in a step preceding the spraying step, the vial is heated, the heating being done, for example, by means of hot air, or advantageously by radiation.

  Note that, in the case of spraying an enamel liquid, the latter can be heated before spraying to improve its adhesion, its homogeneity, its speed of setting, the limitation of thermal shocks, the speed difference limitation of removal of the different materials contacted on the inner surface of the container.

  During the spraying step, an enamel decorative coating is formed on the inner surface of the bottle, which has to be fired.

  Thus, in an additional step following the spraying step, it is cooked. During the additional cooking step, the vial comprising the inner decorative layer is heated, the heating being possible, for example, in a suitable baking oven. It goes without saying that the operation of the baking oven will be performed in order to respect the temperature cycles that the container is likely to withstand without degradation. Preferably, enamel baking will be carried out up to temperatures of the order of 800 C, allowing both a perfect homogeneity and baking of the enamel composition.

  In a subsequent step following the cooking step, a cooling step is carried out. This step must be slow, in order to prevent thermal shocks, which could interfere with the hanging of the decorative layer (s), to intervene.

  According to the method of the invention, it is possible, for example, to spray a liquid or an enamel powder of a first color (C1) to form a first layer of color decorations before a first color (C1). Then, in an intermediate step, the enamel layer can be destroyed in defined areas, for example by laser method. A liquid or enamel powder of a second color (C2) is then sprayed into the container to provide a second color pattern layer having the second color. This second layer of enamel will be visible from the outside only in areas where the first layer of first color was destroyed. It will thus be possible, and this, thanks to the process, to create sets of different colors, or to destroy, for example, by laser, the layer or layers of internal decoration, to leave a zone without decoration, in order to make visible the level of the content of the container.

  Let us add that the process also allows to realize an internal decoration with, for example, three layers of enamel of different colors, and that according to these layers it will be possible to destroy only the first layer to let appear in these destroyed zones the second layer, while the first two layers could be destroyed in other areas, to reveal the third layer, the laser destroying only layers of lacquer with pigments.

  The invention thus makes it possible to obtain bottles having the same quality of decorations with the same advantages obtained according to patent FR 2 851 940, but with in addition a homogeneity of perfect deposit and a risk of incompatibility contained perfumes / lacquer layer annihilated decor.

  Of course, the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.

Claims (2)

7 CLAIMS   A method for decorating a transparent or translucent container made of glass or plastic material, intended for the field of cosmetics, for containing a liquid such as a perfume, or the like, in which the decoration is carried out inside the container, characterized in that it consists in producing at least one layer of lacquer on the inner surface of the container by spraying an enamel mist in the form of powder or liquid inside the container in order to obtain a homogeneity of the enamel layer.   2-A method of decorating a container according to claim 1, characterized in that it carries an application of an electromagnetic field around the container.   3-decoration process according to claim 1 or 2, characterized in that the electromagnetic field is applied around said container simultaneously with the enamel spray.   4-A method of decorating a container according to claim 1 or 2, characterized in that the electromagnetic field is applied around said container once enamel spray performed.   5-A method of decorating a container according to any one of the preceding claims, characterized in that the enamel spray is made through a spray nozzle introduced into the container through its mouth.   6-A method of decorating a container according to any one of the preceding claims, characterized in that, parallel to the enamel spraying, it is proceeded to an aspiration, to create a vacuum inside the container.   A method of decorating a container according to any one of claims 1 to 5, characterized in that the powdering of the enamel is advantageously done on a hot container too, in a step prior to the spraying step the container is heated.   8-A method of decorating a container according to any one of claims 1 to 5, characterized in that, in an additional step following the spraying step, it is proceeded to a baking of the powdered enamel.   9-Process for decorating a container according to claim 8, characterized in that, in a subsequent step following the firing step, a cooling step is carried out.   10-perfume container internally decorated by the decoration method according to any one of the preceding claims, characterized in that the container is made of glass or plastic.