EP1329340A1 - Article to be used for the decoration of the skin - Google Patents

Abstract

Decorative article (1) consists of a supple supporting layer (11) with a flock outer surface (12) and an inner surface (14) coated with an adhesive (15). . The adhesive-coated inner surface is covered with a protective film layer (2) prior to application. Decorative article (1), designed to be applied to the skin, especially of the face e.g. in the form of a beauty spot or motif for decorative purposes, consists of a supple supporting layer (11) with a flock outer surface (12) and an inner surface (14) coated with an adhesive (15). The supporting layer is made from a material that is permeable to the adhesive used for the flock outer layer, being a non-woven material with a preferably density of 60 - 90 g/sq m. The adhesive-coated inner surface is covered with a protective film layer (2) prior to application. An Independent claim is included for a procedure to fabricate the article by fixing the outer an inner face to the support layer with an adhesive. The inner surface is coated with adhesive, and covered with a protective film layer.

Description

The present invention relates to an article intended to be used for purposes decorative on the skin, in particular on the face, or on any other part of the body. Such decorative items can be used in addition to a makeup obtained with conventional cosmetic products, especially on lips, cheeks or eyes.

Such decorative items can be used like a fly, or be made up of a motif, in particular a rose or any other figurine.

Such articles are known. They generally include a support in polyvinyl chloride (PVC) type material or high density nonwoven, one side of which is flocked and the other of which contains an adhesive for fixing the article on the skin.

For the manufacture of these known articles, one generally starts from a self-adhesive sheet. PVC, the adhesive side of which is covered with a film of removable protection. The side of the adhesive sheet opposite the film of protection is then flocked adequately.

Conventionally, the flocking is carried out by coating the face to be flocked of an adhesive, and by depositing the fibers of the flocking material therein by a process electrostatic. From such a process, it results in an orientation of the fibers so substantially perpendicular to the plane of the surface to be flocked.

In the context of such a process, the use of a waterproof material in particular to the glue used for the flocking, is made compulsory by the fact that, failing to use such an impermeable material, the flocking glue would pass to the across the support, and would be likely to at least partially dissolve the glue of the adhesive face to the point of no longer ensuring good cohesion between the face adhesive and protective film.

This necessary impermeability of the support results in low elasticity and a certain rigidity of the decorative article, which rigidity is clearly detrimental to the comfort of the one (or the one) on which (or which) is applied decorative item. Indeed, this certain rigidity results in a resistance relatively large object to conform to the contours of the face or the part of the body on which the object is affixed. The low elasticity results in it by a relatively high resistance of the object to deform longitudinally, and therefore to accompany the longitudinal deformations of the skin during facial movements or the part of the body on which affixed the object.

This feeling of discomfort is further increased by a significant "weight" of the decorative article, due to the high density of the support (typically greater than 100 g / m ² ).

Obviously, the problem relating to such rigidity does not arise when, as in patent FR-A-2 221 925, the article is intended mainly to be applied to clothing or any other object. According to this document, the material forming the support is a woven or a nonwoven. According to the embodiment preferred of this document, the article is applied by means of an iron, which requires support to have a certain density, otherwise it will not resist at the temperatures required for fusing. With such density, the support is impermeable to flocking glue. The resulting article is of limited flexibility and elasticity.

Also, is it one of the objects of the invention to make a decorative article to apply on the skin, in particular on the face, and which resolves in whole or in part the problems discussed above with reference to conventional articles.

It is in particular an object of the invention to produce such an article which is of a comfort significantly improved for the one (or the one) who wears it.

It is another object of the invention to produce such a device which is economical to achieve.

It is yet another object of the invention to carry out an economical process. and reliable, for producing a device according to the invention.

Other objects will appear in the detailed description which follows.

According to the invention, all or part of these objects are achieved by producing an article decorative intended to be applied to the skin comprising a flexible support of which a first face is flocked, a second face, opposite the first, being coated with a self-adhesive layer, one face, opposite the support, is intended to be placed in contact with the skin. According to the invention, the support is permeable to the adhesive used for flocking said first face.

This glue permeability of the flexible support results in great flexibility of the decorative item. Therefore, the comfort of the person wearing it is significantly improved. The feelings of tightness felt with decorative items of the type discussed above are toned down in a very large measure. In addition, the skin breathes. This characteristic is particularly advantageous when the pattern corresponding to the decorative article is relatively large in area.

This permeability results not only from the choice of material, but also from the support configuration. Thus, when the support is made of a non-material woven, it is necessary to choose a density low enough to allow the required permeability.

Preferably, the flexible support is a nonwoven whose density is between 50 g / m ² and 100 g / m ² , and preferably, between 60 g / m ² and 90 g / m ² . As a specific example, a nonwoven based on cellulose and / or polyester is used, the density of which is approximately 80 g / m ² . Preferably, the synthetic fibers forming the support have a homogeneous distribution and are strongly bonded together by a synthetic polymer ensuring the resistance of the support during its coating with the aqueous emulsion intended for bonding the flock.

The thickness of the support can be between 0.1 mm and 0.8 mm, and preferably between 0.15 mm and 0.40 mm, and more preferably between 0.15 mm and 0.3 mm, and more preferably, can be of the order of 0.2 mm.

Advantageously, said face of the adhesive layer, opposite the support, before applying the article to the skin, is covered with a film removable protection. Such a protective film can be in particular in silicone paper.

The flocking can be made of cotton, rayon, polyamide or viscose fibers or a mixture of such materials. Still other materials can be used. The fibers are distributed uniformly over the glued surface of the support, and are implanted by an electrostatic process. After implantation in the resin, the fibers are fixed by drying and polymerization. The quantity of fibers per unit area can be of the order of 30 to 45 g / m ² .

The glue intended for flocking can be based on polyacrylic or polyvinyl resin. More specifically, use is made of a resin of the family of acrylic esters in aqueous dispersion. As an indication, the resin is deposited in a quantity, in dry matter between 50 and 90 g / m ² .

Preferably, the adhesive layer comprises a hypoallergenic glue, such than used for the manufacture of adhesive layers used in the field medical. For example, an adhesive sold under the reference is used. TIVOCOLL® 4771/04 by SIKA TIVOLI FRANCE. The adhesive can be deposited at a density of 60 to 80 g / m2. From a practical point of view, the adhesive is preferably deposited on a non-stick support, of paper type siliconized, then thermally fixed, and applied by contact and pressure on the face support opposite flocking.

The total thickness of the decorative article according to the invention (without any silicone protection) can be between 0.4 mm and 0.8 mm, and preferably between 0.5 and 0.7 mm, such than measured under a weight of 15 g / cm ² .

The total weight of the decorative article thus produced can be between 200 and 300 g / m ² .

According to another aspect of the invention, a set of decorative articles is produced. comprising a protective film on which a plurality is arranged decorative articles according to the invention.

Such an assembly can be in the form of a rectangular sheet of approximately 10 cm ² on which is arranged a plurality of decorative patterns, regularly spaced. The decorative patterns of the set can be the same or different. Such patterns can be in particular in the form of small disks a few millimeters in diameter, so as to form flies to be applied to the face.

i) floquer une première face d'une feuille d'un support, au moyen de fibres fixées à ladite première face en utilisant une colle à laquelle le support est perméable ;

ii) adhésiver une seconde face du support, opposée à la première, au moyen d'une couche adhésive dont une face est destinée à être mise au contact de la peau et est recouverte d'une pellicule de protection amovible.

iii) découper le support floqué de manière à délimiter une pluralité d'articles décoratifs. Avantageusement, le procédé comprend en outre une étape consistant à :

iv) séparer la feuille de support de la pellicule de protection aux endroits extérieurs auxdits articles décoratifs.

According to another aspect of the invention, a process is carried out comprising the following steps:

i) flocking a first face of a sheet of a support, by means of fibers fixed to said first face using an adhesive to which the support is permeable;

ii) adhesiveizing a second face of the support, opposite the first, by means of an adhesive layer, one face of which is intended to be brought into contact with the skin and is covered with a removable protective film.

iii) cutting the flocked support so as to delimit a plurality of decorative articles. Advantageously, the method further comprises a step consisting in:

iv) separating the support sheet from the protective film at the places external to said decorative articles.

Thus, in spite of the permeability of the support, the cohesion between the film of protection and the support is not affected by the flocking glue, since the flocking operation is carried out prior to the affixing of the film of protection, this last operation intervening only after drying of the glue of flocking.

Advantageously, prior to step iv), the adhesive layer is neutralized at least in certain places outside said decorative articles. So we facilitate separation of the backing sheet and the protective film in places other than decorative patterns. We avoid, especially when they are small surface, also peel them off from the protective film, during this step of seperation. This neutralization step preferably takes place before the cutting operation.

Alternatively, the glue can be applied only in certain places, depending on a pattern chosen according to the arrangement of the decorative articles, so as to be able to dispense with this neutralization step.

This neutralization can be achieved by applying, where required, a adequate composition, including a varnish. As a more specific example, we applies a neutralizing varnish marketed by the Akzo Company.

Alternatively, one or more strips of material are applied which are between the flocked support and the protective film.

• les figures 1 et 2 représentent un ensemble d'articles décoratifs selon un mode de réalisation préféré de l'invention ; et
• les figures 3-6 illustrent de manière simplifiée les étapes de fabrication de l'ensemble représenté aux figures 1 et 2.

The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be explained below, with reference to nonlimiting exemplary embodiments, described with reference to the appended figures, among which:

• Figures 1 and 2 show a set of decorative items according to a preferred embodiment of the invention; and
• Figures 3-6 illustrate in a simplified manner the steps for manufacturing the assembly shown in Figures 1 and 2.

The assembly 1 shown in FIGS. 1 and 2 comprises a sheet of silicone paper 2 whose density is 80 g / m ² . Sheet 2 is rectangular and its surface is approximately 10 cm ² .

On the sheet 2 are arranged two rows of three decorative articles 10 which go be discussed in detail later. Such decorative items are configured as small brown or black discs, and the diameter is around 3 to 4 mm.

As it appears in the sectional view of Figure 2, each decorative item 10 comprises a support 11 of nonwoven based on polyester and cellulose. His thickness is around 0.2 mm.

One face 12 of the support 11 is covered with a flocking coating 13 based on viscose fibers. The density of the flock coating 13 is of the order of 40 g / m ² . The length of the flocking fibers is of the order of 0.3 mm. Their diameter is around 0.9 Décitex.

The face 14 of the support, opposite to the face 12 is coated with an adhesive layer 15, formed of a hypoallergenic glue. The face of the adhesive layer 15, opposite the support 11, is in contact with the sheet of silicone paper 2.

In use, the user takes off paper 2, article (s) 10 that she wishes to apply, and applies it, by a simple pressure at the required place.

Figures 3-6 to which reference is now made illustrate the main steps for manufacturing an assembly as shown in Figures 1 and 2.

In FIG. 3, on the face 12 of a nonwoven support 11, a layer of acrylic adhesive 50 is deposited in the form of an aqueous emulsion, on which an flocking 13 consisting of viscose fibers is deposited electrostatically the length is of the order of 0.3 mm. The density of the flocking 13 is approximately 40 g / m ² . The support 11 thus flocked is, after a drying and polymerization step (not shown), wound on an axis, the flocked face 12 being turned towards the outside of the core.

In Figure 4, is deposited on the face 14, opposite the flocking 13, a layer of hypoallergenic adhesive 15 conventionally used in the field medical, said layer of adhesive being covered with a sheet of silicone paper 2 '.

In practice, and in a little more detail, the self-adhesive layer 15 is actually deposited on the sheet of silicone paper 2 '. It is fixed thermally and applied by contact and pressure on the face 14 of the support.

The assembly thus formed is wound again on an axis.

In FIG. 5, the protective sheet 2 ′ is separated from the flocked support 11. The adhesive layer 15 is neutralized according to one or more strips (or according to all other appropriate reason) corresponding to portions of set 1 do not comprising no decorative article 10. To this end, a varnish 51 suitable for neutralize the adhesive of layer 15.

On the thus partially neutralized layer 15, a sheet of protection 2 in silicone paper (which may or may not be the 2 'that has been removed previously). The strip is again wound on an axis.

In FIG. 6, by means of a suitable cutting tool 52, the support 11 is cut to the shape of the patterns to be produced 10, without affecting the protective sheet 2. The support portions located outside the patterns to be produced 10 are then separated from the protective sheet 2. On the latter, only the decorative items 10 spaced evenly. The tape is then cut to size to include the desired number of items decorative 10.

In the embodiment, the various operations have been illustrated by sequentially, with winding of the tape after each operation. This embodiment is particularly suitable when the various operations are carried out by different parties. It is clear that, with an industrial tool adequate, all these operations can be carried out continuously.

In the foregoing detailed description, reference has been made to modes of preferred embodiments of the invention. Obviously there may be variations made without departing from the spirit of the invention as claimed below.

Claims (13)

Decorative article (10) intended to be applied to the skin comprising a flexible support (11) of which a first face (12) is flocked, a second face (14), opposite the first, being coated with an adhesive layer (15 ) of which a face, opposite the support, is intended to be brought into contact with the skin, characterized in that the support (11) is permeable to the adhesive (50) used for the flocking of said first face (12). Decorative article according to claim 1 characterized in that the flexible support (11) is a nonwoven whose density is between 50 g / m ² and 100 g / m ² , and preferably between 60g / m ² and 90 g / m ² . Decorative article (10) according to claim 1 or 2 characterized in that said face of the adhesive layer (15), opposite the support (11), prior to the application of the article to the skin, is covered with a removable protective film (2). Article (10) according to any one of claims 1 to 3 characterized in that the support (11) is made of a nonwoven material, in particular based on cellulose or polyester. Article (10) according to any one of claims 1 to 4 characterized in that the flocking (13) consists of cotton fibers, rayon, polyamide or viscose, or a mixture of such materials. Article (10) according to any one of claims 1 to 5 characterized in that the adhesive (50) intended for the flocking (13) is based on polyacrylic or polyvinyl resin. Article (10) according to any one of the preceding claims, characterized in that the adhesive layer (15) comprises a hypoallergenic glue. Article (10) according to claim 3 characterized in that the removable protective film (2) comprises a sheet of a silicone material, in particular paper. Set (1) of decorative articles comprising a protective film (2) on which is arranged a plurality of decorative articles (10) according to one any of the preceding claims. Assembly (1) according to the preceding claim characterized in that said decorative articles (10) are identical. Method of manufacturing a set of decorative articles (1) according to claim 9 or 10 characterized in that it comprises the following steps: i) flocking a first face (12) of a sheet of a support (11), by means of fibers fixed to said first face (12) using an adhesive to which the support (11) is permeable; and ii) adhesiveizing a second face (14) of the support, opposite the first, by means of an adhesive layer (15), one face of which is intended to be brought into contact with the skin, and is covered with a protective film removable (2). iii) cutting the flocked support (11) so as to delimit a plurality of decorative articles (10). Method according to claim 11 characterized in that it further comprises the step consisting in: iv) separating the support sheet (11) from the protective film (2) at the places external to said decorative articles (10). A method according to claim 11 or 12 characterized in that , before step iv), the adhesive layer (15) is neutralized at least in certain places external to said decorative articles (10).

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