EP1223836A1

EP1223836A1 - Self-adhesive hanger device, assembly of same and method for making same

Info

Publication number: EP1223836A1
Application number: EP00967969A
Authority: EP
Inventors: Denis Carriere
Original assignee: TECHMAY; Cryovac LLC
Current assignee: Cryovac LLC
Priority date: 1999-10-07
Filing date: 2000-10-06
Publication date: 2002-07-24
Also published as: WO2001024667A1; CA2386836A1; FR2799357A1; CN1407867A; US6769541B1; AU7795300A; MXPA02003539A; FR2799357B1

Abstract

The invention concerns a self-adhesive hanger device comprising a self-adhesive portion formed with a first flexible synthetic film strip (1) and hanging means formed by a second flexible synthetic film strip (5) welded integral to the first strip (1) along a parting line (6), the second strip (5) forming at least a tab provided with a slot (10) adapted to form a loop for hanging an object (11).

Description

SELF-ADHESIVE SUSPENSION DEVICE, GROUP OF SUCH DEVICES, AND MANUFACTURING METHOD

The invention relates to a self-adhesive suspension device comprising a self-adhesive portion adapted to be able to be glued to an object to be suspended, and suspension means integral with the self-adhesive portion and allowing the hanging or gripping of the suspension device, and the object to which it is stuck. There are many situations where objects must be able to be hung.

This is in particular the case of packaged items offered for sale in stores suspended on brackets attached to gondolas or display panels. For small articles, most often specific packaging, known as blisters, is used, comprising a card stock (on which commercial and / or technical information can be presented) carrying a shell or a synthetic film enclosing the articles. The cardboard bottom is drilled so that it can be put on a gallows. Likewise, certain other types of packaging with holes allow the suspension of articles. However, we know that it is important to be able to reduce the volume and the quantity of material reserved for packaging which, as waste, is expensive and poses increasing problems of elimination and pollution. In addition, certain types of articles or packaging do not allow their presentation by suspension. This is particularly the case for articles or groups of articles packaged in heat-shrinkable film (magnetic cassettes, pasta, cheeses, magazines, sockets or electrical accessories, etc.) or in envelopes of paper or cardboard (packages of cookies, boxes of vegetables, seeds, cartons of cigarettes, confectionery, chocolate wafers, stationery, ...), or items not packaged (tools, containers (bottles, flasks, jars ...), lingerie, clothes, shoes, sports goods, ...).

The same problem arises in many other situations, for example for the wall hanging of decorative objects such as frames, for the manual transport of objects without handles (packages, shoes, documents, files, bottles, flasks ...). .).

Many solutions have been proposed to satisfy this problem in certain applications.

A first solution consists of a hook cut from a plate of so-called rigid synthetic material (elastic in bending, such as polyester, PVC, polypropylene, etc.) stuck on a self-adhesive label intended to be itself stuck on an object to be to suspend. This solution is relatively expensive and complex to manufacture. In addition, the presence of the rigid plate generally creates an extra thickness preventing the production of coils of large dimensions for automatic installation using a standard labeling machine. Also, once placed on an object for its presentation suspended in the store, the rigid hook necessarily protrudes from the object, which poses problems of packaging, handling, size and risk of snagging or untimely wrenching during storage or transport before the articles are suspended. In addition, this device is not very resistant insofar as there is a risk that the rigid plate comes off the label, or that the label comes off the object, in particular under the effect of the weight of the 'suspended object which is not generally exercised in the plane of the plate and label (the latter can only rarely be centered with respect to the object). A second solution consists of a plate of rigid synthetic material, a portion of which is cut to form a suspension member (hook or light) and another portion is provided with a layer of self-adhesive material intended to be glued to an object to be hung. This solution also remains relatively expensive considering the cost of synthetic materials. rigid and prohibits the use of an automatic labeling machine. In addition, it cannot be used in the case where the suspension member must not protrude from the outline of the object. And, again, it offers only low resistance and is not suitable for hanging heavy objects. A third solution consists of a flexible synthetic material label having a self-adhesive portion, and a precut portion adapted to form, by deployment and / or plastic stretching, a suspension loop.

In the case of a deployment without stretching, it is possible to use flexible materials of low price, so that this solution is then less expensive than the previous ones. However, making the cut to form the handle by deploying a strip of precut material is relatively delicate and costly to manufacture. In addition, it offers a relatively low resistance insofar as the width of the strap forming the handle is necessarily much less than that of the self-adhesive portion, and the ends or the angles of the cutout constitute zones of least resistance. In addition, this label is inconvenient to use during the stage of hanging objects, because it requires precise handling to grip the precut strap and deploy it to form the handle. Thus, if this manipulation can be suitable for occasional use, for example in the laboratory, it strikes productivity in industry or commerce during work in series. In addition, the shape of the precut being essentially dictated by the dimensions of the handle and its resistance, it is difficult to produce various shapes adapted to the fastening members. The loop thus formed therefore does not generally offer good retention of the object - especially in the horizontal directions - relative to the attachment member. And when the objects are grouped, the adjoining handles can mingle. Finally, the handle thus deployed does not offer regularity of shape and is not very aesthetic. This solution may therefore be suitable for making grip handles for light objects in small numbers, but is not suitable neither for the presentation of articles at points of sale, nor for heavy objects.

Thus, US Pat. No. 4,832,301 describes a hanger label comprising a peripheral portion provided with double-sided adhesive strips for gluing it to an article, and a cut out central portion forming a foldable hanger tab along a fold line delimited by the ends of the cutout. forming the tab, this fold line does not correspond to an assembly line. Rounded leaves must be provided at these ends of the cut which remain particularly fragile. In a variant, this label is not applied directly to the article, but on an uncut intermediate adhesive label, itself glued to the article, and which can be made of paper to receive prints. This second label supposed to reinforce the suspension is in practice irrelevant since all the constraints remain supported by the first cut label and the adhesive strips. Here again, the fold line is delimited by the cutout of the tab and does not correspond to an assembly line of the two labels. This device therefore has all of the aforementioned drawbacks of difficulty and cost of production, fragility, aging, difficulty of handling, ineffective maintenance, aesthetic disadvantage.

US-5,782,495 describes another alternative embodiment of a suspension of this third type in which the suspension portion is formed by an extension extending the adhesive part, cut and folded and folded down before use along a fold line on this adhesive part . Other portions are folded over the assembly to keep the suspension portion folded over the adhesive portion before use. The result is a complex and costly assembly suitable for specific uses in laboratories or care centers (for example for the suspension of infusion bottles) but unsuitable for industrial or commercial use for the suspension of articles in large series.

In the case of deployment accompanied by plastic stretching, it is also necessary to use a stretchable material such as a polyamide, high price. In addition, the stretching manipulation is delicate and there is a great risk of stretching the material too much. And the material in the stretched state in the plastic field offers a much lower tensile strength.

A fourth solution consists of a label formed by a flexible strip having two self-adhesive portions separated by an intermediate non-adhesive portion forming a suspension loop with the object itself when the self-adhesive portions are glued to the object. Again, such a label is relatively expensive to manufacture in practice (due to the presence of two separate adhesive portions each independently protected by a non-stick protective sheet), cannot be placed on the objects to be hung by a labeling machine. traditional automatic, and does not allow the shape of the suspension loop to be adapted to ensure good support relative to the hooking members.

The invention aims to overcome all of these drawbacks by proposing a self-adhesive suspension device which, simultaneously, can be manufactured at an extremely reduced cost price, can be placed automatically in series using a simple labeling machine, offers great resistance and can be adapted to the suspension of very diverse objects, including heavy objects over a long period of time, and the suspension means of which can be easily adapted without additional cost to the hooking or gripping members with which they are intended to cooperate with.

The invention also aims to propose a device which, moreover, is simple, convenient and intuitive to use when suspending objects, and in particular, which is compatible with the productivity constraints of work for suspending large numbers of 'objects in series (workshops or industrial warehouses, department stores ...).

To do this, the invention relates to a self-adhesive suspension device comprising a self-adhesive portion adapted to be able to be glued to an object to be suspended, formed of a first strip of a first film of material. flexible synthetic of which one side, called the adhesive side, carries a layer of self-adhesive material and the other side, called the external face, is free of adhesive material, and suspension means integral with the self-adhesive portion, formed of at least a second strip of a second film of flexible synthetic material, attached to and at least partially facing the external face of the first strip, the second strip forming at least one tab comprising at least one cutout defining a lumen in this tab suitable for form a suspension loop, this tab being able to be raised from the first strip by folding along a fold line, characterized in that: • the second strip is attached inseparably assembled by welding on the external face of the first strip, according to at least one weld line,

• at least one tab extends over and at least partly opposite the external face of the first strip, from a weld line freely without being otherwise attached to the first strip, so that it can be raised of the first strip by folding along said weld line acting as a fold line.

Traditionally, throughout the text, the term "self-adhesive" and its derivatives denote a cold-pressure sensitive adhesive. The second strip is separate from the first strip (does not constitute an extension thereof), and is assembled from inseparable from the first band in the sense that these two bands cannot normally be separated from one another under the effect of significant forces and / or aging without undergoing deterioration. In particular, they are associated to each other without bonding, in particular without bonding with a self-adhesive material.

Advantageously and according to the invention, the second strip is superimposed on the first strip and assembled to the first by hot welding without adding material along at least one weld line. It should be noted in particular that, unlike bonding, assembly by welding, in particular by hot welding without addition of material, does not undergo aging phenomenon.

In a first variant of the invention, the second strip is welded to the first strip by a straight end weld line (rectilinear) extending along an extreme right edge (rectilinear) of the first strip, of so as to define a tab forming a suspension loop which, before use, extends above the first strip, and, in use, is unfolded relative to the end weld line.

According to a second variant of the invention, the second strip is welded to the first strip by at least one straight weld line at least substantially middle and forms two tabs extending opposite each other with respect to at the weld line (s), at least one of these tabs forming a suspension loop, the first strip extending on each side of the weld line (s). In a first sub-variant, each of the two tabs of the second strip forms a suspension loop. In a second sub-variant, one of the legs forms a suspension loop, while the other leg is free of cutouts and bears printed information. In addition, advantageously and according to the invention, in particular in the first sub-variant, there are provided two straight weld lines at least substantially median parallel to each other, close to one another. Alternatively, it is also possible to provide a single straight weld line of sufficiently large width.

It should be noted that in the above-described solutions of the prior art in which a suspension member is assembled to an adhesive label, this suspension member is always provided in synthetic material of rigid type. Indeed, it could be considered that such a rigid material made it possible to ensure better resistance and better support at the level of the suspension member which cooperates with the attachment or gripping means and which is supposed to undergo the most constraints. Conversely, in the invention, the suspension member formed by the second strip, although attached and assembled on the first strip, is in flexible material, which provides preponderant advantages and allows not only the subsequent installation using an automatic labeling machine and obtaining a low cost price, but also equivalent resistance and superior resistance over time. Indeed, the flexible tab forming the suspension loop can deform without constraints, in particular under the effect of the weight of the suspended object, without generating constraints on the assembly of the strips together or on the bonding of the device on the hanging object. Unlike the hanging tabs cut from the adhesive portions (US-4,832,301), the hanging tab of a hanging device according to the invention is linked by a weld line acting as a fold line of great resistance and not subject to untimely tears.

Flexible plastics and rigid plastics are well known. As flexible synthetic material, one can use in a device according to the invention, any material sufficiently flexible to allow the device to be placed on the object using a traditional labeling machine. Advantageously and according to the invention, the first strip and the second strip are formed from the same flexible synthetic material, in particular low density polyethylene. In particular, it is possible to use standard low density polyethylene of low price, for example from recycling.

The first strip and the second strip can have at least substantially the same thickness, or on the contrary have very different thicknesses, depending on the mechanical stresses that each strip must undergo. Advantageously and according to the invention, they have a thickness of between 20 μm and 500 μm - in particular of the order of 30 μm to 150 μm -.

In addition, advantageously and according to the invention, the first strip and the second strip have the same format and are superimposed on each other. Advantageously and according to the invention, the first strip is carried by a removable non-stick support - in particular a silicone paper - receiving the adhesive face of the suspension device in the manner of a label. A device according to the invention can thus be manufactured and used as a simple self-adhesive label, and in particular several devices according to the invention can be grouped on a common support.

The invention thus extends to a group of devices according to the invention carried by the same common non-stick support. Advantageously and according to the invention, such a group of devices is in the form of a reel, and can thus be used as a reel of labels with a traditional labeling machine for fitting the devices in series on objects to be hung. Alternatively, a group of devices according to the invention may be in the form of a board or sheet.

The invention also extends to a method of manufacturing a group of devices according to the invention. A method according to the invention is characterized in that:

a first film of flexible synthetic material is applied to a non-stick support with the interposition of a layer of self-adhesive material, this first film having an external face free of adhesive material,

a second film of flexible synthetic material is reported, which is rigidly assembled inseparably by welding on the external face of the first film along at least one weld line,

- The suspension devices are then cut by making a half-flesh cut through the thickness of the two films to define the outline of each suspension device, and a half-flesh cut through the thickness of the second film to make cuts defining lights forming suspension loops.

Advantageously and according to the invention, the various stages are carried out continuously from non-stick support coils and films, to form at least one coil of suspension devices appearing as labels. The invention also relates to a device, a group, and a method characterized in combination by all or some of the characteristics mentioned above or below.

Other objects, characteristics and advantages of the invention will appear on reading the following description of several embodiments given only without limitation, which refers to the figures in which:

FIGS. 1a to 11c are schematic perspective views illustrating three embodiments of a device according to the invention before use,

- Figures 2a to 2c are schematic perspective views illustrating the three embodiments of Figures la to le in use for the suspension of objects,

FIG. 3 is a diagram of an embodiment of a method according to the invention,

FIGS. 4a to 4f are schematic perspective views illustrating a group of devices according to the invention at different stages A, B, C, D, E and F of the manufacturing process of FIG. 3,

- Figure 5 is a schematic perspective view of an alternative embodiment of a group of devices according to the invention.

The device shown in FIG. 1 according to the invention comprises a first strip 1 of a first film of flexible synthetic material, one adhesive face of which carries a layer of adhesive material 3 covered by a non-stick support 2 which carries the suspension device according to the invention. . The other external face 4 of the first strip 1 is free of adhesive material.

The first strip 1 is, in the example shown in Figure 1, at least substantially rectangular in shape. A second strip 5 of a second film of flexible synthetic material is added and assembled by welding along a straight end weld line 6 on the first strip 1. The weld line 6 extends in the immediate vicinity, parallel and along one of the right peripheral extreme edges of the first strip 1. The weld line 6 forms a rigid assembly (with no possibility of relative movements with the exception of folding around the weld line) and inseparable from the two films.

The second strip 5 is at least substantially of the same format as the first strip 1, rectangular, and thus forms a tab 8 extending freely from the weld line 6 without being otherwise attached to the first strip 1 superimposed on this first strip 1. This tab comprises a cutout 9 formed in the thickness of the second strip 5 and adapted to define a lumen 10, so that the tab 8 itself forms a suspension loop. The tab 8 can be moved away and raised from the first strip 1 by folding the second strip 5 along the weld line 6.

As can be seen in FIG. 2a, to use this suspension device, it suffices to separate the first strip 1 from its non-stick support 2 and to apply the adhesive face of the first strip 1 to an object 11 to be suspended. In the example shown in Figure 2a, the weld line 6 and the end edge 7 along which this weld line 6 is formed are placed in the vicinity of an end edge 12 of the object, so that the first strip 1 does not extend projecting from the contour of the object 11. As long as the device is not used, the second strip 5 remains superimposed above the first strip 1, and the entire suspension device according to the invention therefore remains at least substantially included in the size of the object 11 without forming a projection on the outside. To suspend the object 11 represented in FIG. 2a, it suffices to raise the tab 8 by folding it with respect to the weld line 6 and to engage the lumen 10 (open after removal of the portion of internal film delimited by the cutout 9 ) in a hooking member 13 which, in the example shown, is formed by a simple rod such as that which is encountered in stores for the orderly presentation of series of articles for sale suspended from one another side of the others on the rod 13. Of course, the fastening member can take any possible form and for example be formed of a double rod or a tab or the like. The shape of the light 10 formed in the tab 8 is adapted to that of the fastening member 13 to which the device suspension is intended. In the example shown, the lumen 10 is a horizontal oblong lumen provided with a median upper notch making it possible to receive the rod 13 and to ensure a certain relative support in the horizontal direction perpendicular to the rod 13. In a variant not shown, several lights such as the light 10 can be provided, either when the attachment member 13 comprises several elements, or in order to be able to adapt to several forms of attachment members 13.

In the second embodiment shown in Figures 1b and 2b, the second strip 5 is welded to the first strip 1 by two weld lines 6a, 6b straight formed in the middle part of the second strip 5. These two weld lines 6a , 6b extend parallel to each other, close to each other along the entire width of the second strip 5 and the first strip 1 (that is to say between their longitudinal edges ). The second strip 5 then forms two legs 8a, 8b, one on each side of the weld lines 6a, 6b. The first tab 8a is, as in the first embodiment of FIGS. 1a and 2a, provided with at least one cutout 9 forming a lumen 10, so that this tab 8a forms a suspension loop. The second tab 8b, on the other hand, is free from cutting and light, and can be provided with printed indications 14 such as technical and / or commercial information (instructions for use, content of the object, price, coupons, etc.). .). In a variant not shown, this second tab 8b can nevertheless be provided with a dotted cutting line parallel to the welding line 6b, so as to be easily detachable (for example in the case where it forms a reduction voucher with reimbursement delayed).

When the first tab 8a is raised by folding along the first weld line 6a, it extends at least substantially perpendicularly and in the middle part of the first strip 1. Thus, when this first strip 1 is glued to the object 11a hang as shown in FIG. 2b, the suspension tab 8a can be generally centered relative to the first strip 1 and relative to the object 11, so that the weight of the object 11 is exerted on the first strip 1, on the weld line 6a and on the first tab 8a, along the same vertical axis, without inclination of the object 11.

Conversely, in the first embodiment shown in Figure 2a, the suspension device being applied to one side of the object 11, when the latter is suspended, a certain inclination of the object 11 relative to the vertical is product, the first adhesive strip 1 forming an angle distinct from the flat angle with the tab 8. The flexibility of the tab 8 and the weld line 6 does not prevent this inclination, so that the stresses generated are low, as well as the risks of detachment of the first strip 1 relative to the object 11. But, in the second embodiment of FIG. 2b, this risk of detachment is almost nonexistent insofar as the first strip 1 can be sufficiently long to overlap a edge 15 of the object 11, with the two ends of the first strip 1 bonded to two opposite vertical faces of the object 11. This assembly is extremely resistant over time and in practice allows the suspension of heavy objects, with excellent resistance over time, even when the strips 1, 5 are formed from a standard flexible synthetic film with a low cost price such as low density polyethylene.

The third embodiment shown in Figures 1 c and 2c is even more resistant. It differs essentially from the previous one in that the two tabs 8a, 8b are both provided with a cutout 9a, 9b defining a lumen 10a, 10b (after removal of the internal film portions delimited by the cutouts 9a, 9b), so that the two legs 8a, 8b are used to suspend the object 11 as shown in Figure 2c. The shape of the lights shown for this embodiment is of the type making it possible to produce a double handle which can be gripped by the hand of a user as shown in FIG. 2c. Thus, the device according to the invention is extremely simple, inexpensive and easy to place on an object 11, can be used for the manual carrying of objects devoid of handles. Of course, as a variant, the lights 10a, 10b can just as easily be similar to that of the first two embodiments, adapted to cooperate with a fastening member 13.

The device according to the invention can be produced very economically, by using a film of flexible material such as standard low density polyethylene, in particular from recycling. Preferably, the same flexible synthetic material, and more particularly the same film, can be used to form the two strips 1, 5. In addition, these two strips preferably have at least substantially the same thickness which can be between 20 μm and 200 μm - in particular of the order of 30 μm to 110 μm -. For example, for relatively light objects, a film 40 μm thick can be used, and for heavier objects, a film 100 μm thick.

The format of the different bands 1, 5 can be other than rectangular, for example elliptical or rounded and convex at the ends. The two superposed strips 1, 5 preferably have the same format, so as not to generate any additional thickness, which allows the successive stacking of a very large number of devices according to the invention, in particular the manufacture of groups 29 of devices such as coils 29. For certain applications, however, nothing prevents the provision that the first strip 1 and the second strip 5 have slightly different formats, or that the first strip 1 is of larger dimensions to ensure better bonding to object 11, that the second strip 5 has larger dimensions to adapt to the fastening and / or gripping members, to improve the resistance of the device. Anyway, the second strip 5, and in particular each tab 8, 8a, 8b which it forms, extends, before use (before deployment by folding for the suspension of an article), at least for opposite part of the outer face 4 of the first strip 1. The assembly is therefore in a compact and stable form, like a label, without being subject to deterioration during handling and is suitable for intensive use in large series, in particular to an installation using a labeling machine. FIG. 3 represents a method of manufacturing according to the invention a coil of suspension devices. This process is carried out continuously from a coil 17 of non-stick support (silicone paper), the silicone face of which receives the self-adhesive material, which is for example an adhesive of the "holt-melt" type, that is to say -disposed in the hot melt state in a post 16 for applying glue, then passes over a cooling roller 18, at the outlet of which it is assembled to a first film 19 from a reel 20, intended to produce the first strip 1. The first film 19 is therefore applied to the self-adhesive material, and in stage A of the process the complex shown in FIG. 4a is obtained comprising the superposition of the non-stick support 2, of a layer of self-adhesive material 3, and of the first film 19, which is for example a film of low density polyethylene. A second film 21 is then superimposed on the first film 19 and this second film 21 comes from a coil 22. The assembly then passes through a welding station 23 which is for example a hot welding station by applying irons hot 24 by means of an intermediate protective strip unrolled continuously 25 (for example a teflon strip). At the exit from the welding station 23, the complex shown in FIG. 4b is obtained at stage B, the second film 21 being welded along two longitudinal straight welding lines 6a, 6b on the first film 19. This complex is then passed over a rotary finishing station 26 in which half-flesh cuts are made in the second film 21 (and not in the first film 19) to form the various cuts 9 or 9a, 9b forming the lumens 10 or 10a, 10b in the thickness of the second strip 5 of the devices. Also carried out, where appropriate, at this finishing station 26, the various imprints of mentions printed on the external face of the second film 21, so that the complex shown in FIG. 4c is obtained at output. In this figure, there are in fact shown two alternative embodiments, one of which corresponds to the second embodiment where the second tab 8b is provided with printed indications 14 (left part of the figure), while the other has two tabs 8a, 8b provided with cutouts 9a, 9b forming lights 10a, 10b, to both form suspension loops (right part of the figure).

This strip-shaped complex is then introduced into a transverse cutting station 27 in which a cutting is made through the two films 19, 21 so as to separate the suspension devices from each other. Several stations 27 of successive transverse cuts can be provided, depending on the shape of the suspension devices to be produced. We then obtain at the output, at stage D, the complex shown in FIG. 4d similar to the previous one, but in which the various transverse cuts between the suspension devices have been made.

It should be noted that the complex of FIG. 4d (stage D) can be obtained, as a variant, in a single cutting step from the complex of FIG. 4b (stage B), after possibly making the prints, thanks to a engraved cutting cylinder having cutting members at different heights. This variant is applicable both when the two bands 1, 5 are of the same format as if they have a different format.

Then, if necessary, a weeding of the complex in order to remove the lost portions of the films 19 and 21. These lost portions are wound on a reel 28. The rest of the complex forms the group of suspension devices according to the invention shown FIG. 4e, and obtained after weeding in stage E. This group is wound up in a coil 29, either directly to obtain suspension devices with two legs 8a, 8b and two weld lines 6a, 6b, or, as shown in FIG. 3, after a longitudinal cut performed on a cutting station 30 in the case where it is desired to obtain suspension devices in accordance with the first embodiment with a single tab 8. In this longitudinal cutting station 30, the entire complex, that is to say the two films 19, 21 and the non-stick support 2 are cut, between the two weld lines 6a, 6b, so that a single line is obtained for each suspension device extreme straight weld 6 as described in relation to the first embodiment above. Two groups of suspension devices according to the invention are then obtained as shown in FIG. 4f, at stage F of the method, and these two groups are wound separately on separate coils 29.

FIG. 5 represents an alternative embodiment of the invention in which the various suspension devices are continuously contiguous one next to the other, and are of rectangular shape, so that no loss of weeding is to be expected. It should be noted that there are standard labeling machines allowing to apply such labels without weeding, on 1 1 objects in series. In this variant, there are also shown cutouts 9a, 9b forming slots 10a, 10b in the form of simple oblong slots.

Obviously, other variants of the invention can be provided. For example, if only half of the first strip 1 is adhered in the second mode or the third embodiment, a device is obtained comprising three tabs which can either all serve for the suspension, or, on the contrary, serve for carrying mentions printed. Other variant embodiments are also possible depending on the applications.

In practice, such suspension devices can be obtained at an extremely low cost price, typically of the order of 5 to 20 times lower than the previously known devices. In addition, the suspension device according to the invention is extremely efficient in terms of resistance and resistance over time.

In particular, it is always possible to choose film thicknesses and / or surfaces of the self-adhesive portion (s) allowing the suspension of an object determined according to its weight and the required duration of suspension.

Claims

CLAIMS 1 / - Self-adhesive suspension device comprising a self-adhesive portion (1) adapted to be able to be glued to an object (11) to be suspended, formed of a first strip (1) of a first film of flexible synthetic material, one side of which , called the adhesive face, carries a layer of self-adhesive material (3) and the other face, called the external face (4), is free of adhesive material, and means (5, 10) of suspension integral with the self-adhesive portion (1 ), formed of at least a second strip (5) of a second film of flexible synthetic material, attached to and at least partly opposite the external face (4) of the first strip (1), the second strip (5) forming at least one tab (8, 8a, 8b) comprising at least one cutout (9, 9a, 9b) defining a light (10, 10a, 10b) in this tab (8, 8a, 8b) adapted to form a suspension loop, this tab (8, 8a, 8b) being able to be raised from the first strip (1) by folding according to a fold line, characterized in that: • the second strip (5) is attached inseparably assembled by welding on the external face (4) of the first strip (1), along at least one weld line (6, 6a , 6b),

• at least one tab (8, 8a, 8b) extends over and at least partially opposite the external face (4) of the first strip (1), from a weld line (6, 6a , 6b) freely without being otherwise attached to the first strip (1), so that it can be raised from the first strip (1) by folding along said weld line (6, 6a, 6b) acting as a fold line .

2 / - Device according to claim 1, characterized in that the second strip (5) is superimposed on the first strip (1) and assembled to the first by hot welding without addition of material along at least one line of welding (6, 6a, 6b).

3 / - Device according to claim 2, characterized in that the second strip (5) is welded to the first strip (1) by a weld line (6) of straight end extending along an extreme edge (7) right of first strip (1), so as to define a tab (8) forming a suspension loop which, before use, extends above the first strip (1), and, in use, is unfolded relative to the end weld line (6).

4 / - Device according to claim 2, characterized in that the second strip (5) is welded to the first strip by at least one weld line (6a, 6b) straight at least substantially middle and forms two tabs (8a, 8b ) extending opposite to each other with respect to the weld line (s) (6a, 6b), at least one of these legs forming a suspension loop, the first strip (1) extending on each side of the weld line (s) (6a, 6b). 5 / - Device according to claim 4, characterized in that each of the two tabs (8a, 8b) of the second strip (5) forms a suspension loop.

6 / - Device according to claim 4, characterized in that one (8a) of the tabs forms a suspension loop, while the other (8b) tab is free from cutting and bears printed information (14).

It - Device according to one of claims 4 to 6, characterized in that it comprises two weld lines (6a, 6b) straight at least substantially median parallel to each other, near one of the 'other.

8 / - Device according to one of claims 1 to 7, characterized in that the first strip (1) and the second strip (5) are formed of the same flexible synthetic material.

9 / - Device according to claim 8, characterized in that the flexible synthetic material is low density polyethylene.

10 / - Device according to one of claims 1 to 9, characterized in that the first strip (1) and the second strip (5) have a thickness between 20 microns and 500 microns -in particular of the order of 30 microns at 150 μm-.

11 / - Device according to one of claims 1 to 10, characterized in that the first strip (1) and the second strip (5) have the same format and are superimposed on each other. 12 / - Device according to one of claims 1 to 11, characterized in that the first strip (1) is carried by a removable non-stick support (2) - in particular a silicon paper - receiving the adhesive side of the suspension device to the way of a label. 13 / - Group of suspension devices according to one of claims 1 to 12, carried by a common non-stick support (2).

14 / - Group of suspension devices according to claim 13, characterized in that it is a coil (16).

15 / - Method for manufacturing a group of suspension devices according to one of claims 13 or 14, characterized in that:

a first film (19) of flexible synthetic material is applied to a non-stick support (2) with the interposition of a layer of self-adhesive material (3), this first film (19) having an external face free of adhesive material, - a second film (21) of flexible synthetic material is reported which is rigidly assembled inseparably by welding on the external face of the first film (19) along at least one weld line (6, 6a, 6b),

- The suspension devices are then cut by making a half-flesh cut through the thickness of the two films (19, 21) to delimit the outline of each suspension device, and a half-flesh cut through the thickness of the second film (21) for making cutouts (9, 9a, 9b) defining lights (10, 10a, 10b) forming suspension loops.

16 / - A method of manufacturing a group of suspension devices according to claim 15, characterized in that the various stages are carried out continuously from coils (17) of non-stick support (2) and (20, 22) of films (19, 21), to form at least one coil (29) of suspension devices appearing as labels.