FR2796883A1 - REPOSITIONABLE ADHESIVE MARKING MEDIUM COMPATIBLE WITH THE SKIN - Google Patents

Abstract

The invention concerns adhesive marking support capable of being posted, in particular those designed for taking down notes. The invention concerns a support (1) for visual or olfactory marking capable of being affixed on the human body, comprising an absorbent flexible material strip (2) capable of temporarily affixing a visual or olfactory message, coated with a skin-compatible self-adhesive gel film. Preferably, the strip consists of an elastic fabric, in particular a mixture of polyamide and elasthane fibre and the gel is a viscoelastic silicon gel, optionally covered with a protective film (4). The strip and the gel are advantageously washable and capable of absorbing an aromatic substance or a perfumed liquid.

Description

 BACKGROUND OF THE INVENTION The present invention relates to the field of repositionable adhesive marking media, in particular those intended for taking written notes.

 the use of repositionable notebooks, marketed under the name of Post-it @, has been known for quite a long time. These note holders consist of rectangular pieces of paper with a small adhesive portion that allows them to be stored in bulk, arranged and repositioned at will on objects or surfaces intended to attract attention and serve as memory.

These paper adhesive note holders have the disadvantage of being disposable.

 Another disadvantage of these repositionable adhesive media is the need to arrange them on flat supports such as sheets, covers of books or the surface of furniture.

The object of the present invention is to provide a repositionable adhesive note carrier that can be placed on any type of support, including the human body.

An object of the invention is therefore to provide an adhesive note carrier capable of marrying all kinds of shapes.

An object of the invention is also to provide an adhesive support adapted to remain disposed on the epidermis.

Another object of the invention is to provide an adhesive note carrier that is reusable.

 Finally, surprisingly, the object of the invention is not only to allow the taking of written notes on the support, but also to allow an olfactory marking to be carried out. Briefly, these objectives are achieved according to the invention by providing a marking medium comprising a piece of flexible and absorbent material, especially fabric, coated with a layer of self-adhesive silicone gel. This type of gel adheres naturally to objects and the epidermis. This advantageously allows the support to be glued and repositioned easily and indefinitely. In addition the gel has elasticity and consistency similar to that of the epidermis, so that the support is deformed and applies perfectly against a part of the body or against an object of complex shape.

The invention is carried out with a visual or olfactory marking support capable of being posted on the human body, the support comprising a strip of flexible absorbent material able to temporarily fix a visual or olfactory message, secured to a layer of self-adhesive gel compatible with the epidermis.

It is intended to use preferably a gel layer composed of viscoelastic silicone gel, the gel being advantageously capable of gradually absorbing and releasing an aromatic substance or a perfumed liquid.

According to one embodiment, the strip of flexible absorbent material is secured to an interwoven fabric web, the fabric web being coated by the gel layer.

According to the preferred embodiment, the strip is composed of material capable of progressively absorbing and releasing an aromatic substance or a perfumed liquid and / or of a bedding material, in particular of elastic fabric, for example a mixture of polyamide and elastane.

 Advantageously, the material web and the gel layer are washable.

According to exemplary embodiments, the gel layer has a thickness of the order of a tenth of a millimeter to a few millimeters.

It is advantageously provided that the gel layer is able to cover and adhere to the material web of another support, in order to mask the visual or olfactory marking of the other support or to superpose the supports in block.

 Alternatively, it is advantageously provided that the gel layer is covered with a protective film.

 Finally, the invention provides for making a writing assembly comprising at least one such support and washable ink writing means.

These and other objects, features and advantages of the present invention will become apparent on reading the following description of a marking medium embodiment, given by way of non-limiting example, with reference to the attached figures. of which - Figure 1 shows a front view and a marking support section according to the invention, and - Figure 2 shows a use of marking medium according to the invention applied on a hand.

The general idea of the invention is to associate a piece of absorbent flexible material that can serve as a writing or printing medium or to fix a perfume, with a layer of self-adhesive gel having a function of connection and interface with any medium, including the skin.

FIG. 1 shows an exemplary embodiment of support 1 of square shape, consisting of a strip 2 of flexible absorbent material whose lower surface is coated, preferably completely, by the gel layer 3, the upper free surface constituting the writing or printing surface. The lower surface of the gel layer 3 is covered with a protective film 4, consisting for example of a peelable polyethylene film.

 The absorbent flexible material must perform functions of writing support or printing and mechanical reinforcement, without harming the deformability of the completed support.

The invention therefore provides that the reinforcing material of the support is both flexible and encaperable or printable. The invention also provides that the medium as a whole is washable so that written messages or olfactory messages can be erased in order to renew or change messages.

According to the preferred embodiment of the invention, the support 1 comprises a strip 2 of elastic fabric as an absorbent material.

As an exemplary embodiment, the fabric strip may advantageously be composed of a mixture of polyamide and elastane, which provides excellent results in terms of mechanical strength, flexibility, and inking or impression.

Next, the invention provides for the use of a bio-compatible self-adhesive gel, that is to say compatible with prolonged contact with the epidermis.

 Many self-adhesive gels can be considered. According to the preferred embodiment of the invention, the combination of the properties of adhesion and compatibility with the epidermis is obtained by using a viscoelastic silicone gel.

As an exemplary embodiment, the self-adhesive gel layer consists of crosslinked silicone gel marketed by the applicant under the name EPITHELIUM 27.

This type of cross-linked silicone gel has a consistency and flexibility similar to that of tissues of the human epidermis and silicones generally have good compatibility with the epidermis. These self-adhesive silicone gels are therefore perfectly indicated for an interface application between the support and the skin.

Fixing the gel layer 3 on the fabric strip 2 is preferably obtained by specific bonding (despite the gel-specific adhesion) over the entire surface of the strip 2.

For the practical realization of supports according to the invention, it is preferable that the layer of silicone gel covers the fabric strip 2 to a limited thickness E, of the order of a tenth of a millimeter to a few millimeters, typically between 0, 3 mm and 1 min.

The flat dimensions of the marking media can vary in large proportions without departing from the scope of the present invention.

By way of illustration, it is possible to produce square supports, for example having dimensions of 50 × 50 mm, intended to serve as note holders and which are assembled in block by superposition.

 An advantage of the support according to the invention is that the weft of the fabric provides a mechanical reinforcement which compensates for the fragility of the gel, thus avoiding premature wear of the marking medium.

Another advantage of the combination of a fabric and a silicone gel according to the invention, is to constitute a washable marking support, so reusable. Indeed, the aforementioned silicone gels are washable, just as the material web is a priori washable, especially if it is tissue.

The essential advantage of the choice of an elastic fabric as constituent of the marking medium according to the invention is to obtain excellent deformability of the support (the elasticity of the support being finally determined essentially by the gel layer), while allowing to temporarily fix a message, directly or indirectly, through another adapted medium.

 The fixed message may be of a visual nature, that is to say, written or printed, or of an olfactory nature, that is to say constituted by an aromatic substance, a perfume or a fragrance.

According to an alternative embodiment of the invention, it is possible to implant an additional thickness of highly absorbent polymeric material on the weave of the gel coated fabric. The fabric simply serves as a link and an interface between the gel layer and the absorbent material thickness which constitutes the visual or olfactory marking medium. This specific complex makes it possible to produce supports whose thickness of absorbent material is intended to store a certain volume of perfumed liquid or to fix particular inks.

It should be noted that the silicone gel layer itself can advantageously temporarily fix an olfactory message, because the silicone polymer oils are capable of absorbing and releasing aromatic substances. A perfume can thus impregnate indifferently in the thickness of the piece of fabric and in the thickness of the gel layer. Such an olfactory labeling medium may advantageously retain a large amount of odoriferous substance and release it gradually.

 The marking supports according to the invention are thus suitable for multiple uses, of which only a few examples are given herein.

By way of example, as illustrated in FIG. 2, a support 1 can be placed on the skin, here on the back of the hand, to take notes and serve as a memory aid.

The support can also be impregnated with perfume, before being applied to a part of the body, detached, glued, or even inactivated by superposition of another support, depending on the circumstances and the will of the user.

 After use, the written message or the olfactory message can be erased, by machine washing in particular, for a new use.

 The marking medium is intended in particular for taking written notes. Also, it is intended to provide, according to the invention, a marking assembly comprising marking media 2 and a felt, a pen, or any other writing means washable ink.

Other applications, embodiments, variants and improvements will be apparent to those skilled in the art without departing from the scope of the present invention, the scope of protection being defined by the claims below.

Claims (13)

1. Support (1) for visual or olfactory marking suitable for being posted on the human body, characterized in that it comprises a strip (2) of flexible absorbent material able to temporarily fix a visual or olfactory message, secured to a layer gel (3) self-adhesive compatible with the epidermis. 2. Support according to claim 1, characterized in that the gel layer (3) is composed of viscoelastic silicone gel. 3. Support according to claim 1 or 2, characterized in that the gel (3) is adapted to absorb and gradually release an aromatic substance or a perfumed liquid. 4. Support according to one of claims 1 to 3, characterized in that the strip of flexible absorbent material is secured to a weft of interlayer fabric, the fabric web being coated by the gel layer. 5. Support according to one of claims 1 to 4, characterized in that the strip is composed of material capable of absorbing and gradually releasing an aromatic substance or a perfumed liquid. 6. Support according to one of claims 1 to 5, characterized in that the strip (2) is composed of a material. 7. Support according to one of claims 1 to 6, characterized in that the strip (2) is composed of elastic fabric. 8. Support according to one of claims 1 to 7, characterized in that the strip is composed of a mixture of polyamide and elastane. 9. Support according to one of claims 1 to 8, characterized in that the material web (2) and the gel layer (3) are washable. 10. Support according to one of claims 1 to 9, characterized in that the gel layer (3) has a thickness (E) of the order of a tenth of a millimeter to a few millimeters. 11. Support according to one of claims 1 to 10, characterized in that the gel layer is able to cover and adhere to the material web of another medium, to hide the visual or olfactory marking of the other support or to superimpose the supports in block. 12. Support according to one of claims 1 to 11, characterized in that the gel layer (3) is covered with a protective film (4). 13. Writing set comprising at least one support (1) according to one of claims 1 to 12, and writing means (5) with washable ink.