EP2843648A2 - Moisture protection for a poster and method for producing a moisture protection for a poster - Google Patents

Abstract

The invention relates to a moisture protection for wrapping information sheets (2) in the form of posters or the like with an insertion pocket, an insertion opening (6) for insertion of at least one information sheet (2), a transparent, front protective layer (3) behind the one in the insertion pocket inserted information sheet (2) is arranged with the front side to be presented after insertion, and a rear cover layer (4) for protecting the information sheet (2) from moisture. The known envelopes increase the dimension of the poster too strong or are not sufficiently dense. This improves the invention in that the front protective layer (3) and the rear cover layer (4) are made of plastic, wherein the rear cover layer (4) at least at the two opposite side edges of the front protective layer (3) with a connecting edge around the side edges turned over and is connected to the front of the front protective layer (3) with this.

Description

The invention relates to a moisture protection for moisture-proof wrapping of information sheets, in particular of information sheets in the form of posters or posters, with an insertion pocket to protect the information sheet from moisture an insertion for insertion of at least one information sheet, a transparent, front protective layer, behind the in the insertion pocket inserted information sheets are arranged with the front side to be presented after insertion, and has a rear cover layer. Furthermore, the invention relates to a method for producing such a moisture protection.

The present invention finds particular application in connection with so-called customer stoppers, poster frames or other advertising displays or other advertising displays application. As an information sheet in the context of the present invention, any printed or otherwise designed sheet or any such plate or film is considered, which is to pass on a reproduced information to the viewer and should be protected against moisture in particular when presented outdoors.

This can be both in conjunction with a classic stand, in which two sides are folded at an angle to each other and at least one of the two sides has a frame-like support for an information sheet. However, the invention may as well with classic picture frames for attachment to a wall or to be used for positioning on another rack. Ultimately, the invention is applicable wherever moisture-sensitive media in the form of printed posters, posters or other information carriers must be protected from moisture.

A moisture protection of the aforementioned artist from the DE 20 2007 015 669 U1 known. In this moisture protection, the information sheets between a rear and a front foil layer are inserted so that it can be protected by the front, transparent film from moisture.

Although the known moisture protection can protect the front side of the information sheet against splashing water, it has two fundamental disadvantages. On the one hand, moisture can penetrate laterally between the two layers. Furthermore, on the other hand, the moisture protection can not be used in conjunction with standard dimensions, since it protrudes laterally beyond the format of the information sheet. For this reason, the moisture protection is essentially only suitable for independently hanging pictures, for example in shop windows.

The object of the invention is therefore to provide a moisture protection, which is usable at low production costs in conjunction with conventional frames and brackets and at the same time offers the best possible protection against moisture penetrating. Another object of the invention is to provide a method of making such moisture protection.

The first object with respect to moisture protection is achieved according to the invention in that the front protective layer and the rear cover layer are made of plastics material, in particular materially connectable, wherein the rear cover layer at least at the two opposite side edges of the front protective layer with a connecting edge to the Side edges is folded and connected to the front of the front protective layer with this is. With regard to the method for producing a moisture protection, this object is achieved by a method according to claim 10.

According to the invention, the insertion pocket is now formed by a front protective layer and a rear cover layer. The front protective layer is essentially a transparent cover that protects the front of the information sheet like a glass of a picture frame.

In particular, when the invention is used in connection with advertising stands which have two unwound feet, each with a presentation frame, at an angle to the vertical direction, it is useful for the front protection layer to be made more stable. In this case, it can also absorb mechanical forces from manual action by persons, in the worst case even vandalism, or falling objects, such as hailstones. The front protective layer is thus made of a comparatively thick material and covers, for example, the poster or the poster, of course, as transparent as possible, to ensure a clear view of the information sheet.

Although it would be possible to provide a fairly stable rear cover layer also, but this has the one disadvantage that unnecessarily much material would be used because on the back of mechanical protection is usually not the focus. In addition, the information sheet should be encapsulated as securely as possible, so as moisture-tight as possible to be enveloped by the moisture protection. However, this would require that the two layers, the front protective layer on the one hand and the rear cover layer on the other hand, protrude beyond the edge of the information sheet and are joined together in a liquid-tight manner. Here, for example, an adhesive connection could be provided.

However, the special aspect of the invention is the fact that can be dispensed with just such a lateral adhesive connection, as this adhesive connection usually the width or height of the information sheet increased so much that the composite of moisture protection and information sheet no longer fits into commercial frame. The frames commonly used in the trade are in fact adapted to the standard formats, so that there is no space left next to the information sheet. Thus, should an information sheet be protected against moisture in the above manner, the information sheet, which also typically has a standard size, would first be cut to make room for the edge. But this is not possible with many posters, without affecting the motive or even destroying it.

By means of the invention, it is now possible to use a thin rear cover layer, which substantially corresponds to a thin film. The front protective layer, in turn, is adapted in size to the standard format, ie to the extent of the information sheet. This means that the front protective layer and the information sheet are substantially the same size.

The thin film, which then forms the rear cover layer, according to the invention is folded around the, for example, formed by a poster, information sheet and the front protective layer lying thereon. Since the thin film is so thin that it does not appreciably increase the width or height of the overall package, the overall package thus formed can continue to be used in conjunction with standard size frames.

The thin film is wrapped around the edge of the front protective layer and overlaps it, for example, by a few millimeters. In the region of this overlap, the thin film of the rear cover layer can then be welded to the upper side of the front protective layer.

The use of a thicker film as the front protective layer and a thin film as the rear cover layer has besides the application-specific choice of the material thickness and the concomitant avoidance of unnecessarily thick films has the advantage that the two layers can be welded easily. Since the folded edge of the rear cover layer is thin, a relatively short exposure time of a hot welding wire must be sufficient to connect this thin film with the ground. At the same time it is ensured by the thicker layer of material of the front protective layer, that this is not also completely melted, which avoids, for example, warping of the weld or seam by shrinkage stresses.

Alternatively, of course, any other connection technique can be used, in particular, an adhesive bond can be provided. In all cases, the thickness of the front protective layer may be, for example, 0.200 mm or more, in particular 0.5 mm or even 1-2 mm. In contrast, the back cover layer is preferably a thin film, which may have a thickness of up to 0.120 mm, which depends only on a certain tear resistance and the property of the moisture seal. Thus, thickness and choice of material interact here.

In a particularly preferred embodiment of the invention, in particular the production method according to the invention, a rear cover layer of film is used which is more than twice as wide or as high as the front protective layer. This means that the information sheet and the front protective layer lying on it can be completely wrapped in the film. By means of a corresponding tool, a substantially rectangular welding wire is then pressed onto the upper side of the package thus formed until, in the edge area, it has connected the foil to the front protective layer by melting the material. The central area is simultaneously severed by this welding technique, so that the film located above the front protective layer can then be removed and disposed of or otherwise used.

The particular advantage of the invention consists in the fact that by joining the rear foil with the front protective layer, especially when welding or adhesive techniques are used, a moisture-proof bag shape can be created, which is adapted in its dimensions exactly to the standard dimensions of the poster is. This in turn means that the poster can be wrapped in its original size, without it no longer fit into the classic frame.

Since most of the frames have side folding strips that are folded up to insert the image and subsequently folded down again while clamping the edge of the image, the connecting edge will later not be visible. Even if this is not the case, however, an essential advantage of the invention is that almost no optical interference of the front side is created by the thin weld seam, which can be introduced, for example, by a glowing wire.

If a front-side laminated poster is used, the invention can also be used advantageously. If you were to laminate the poster on both sides, in turn, would create a wide edge, which makes the use of the poster in conjunction with the standard frame impossible. Preferably, a poster laminated on one side can now be used so that the upper laminate layer forms the front protective layer. The front laminated poster can then be placed on the foil, which later forms the rear cover layer. This is then, as described above, folded and connected to the edges of the laminate layer, in particular glued or welded.

Further features and advantages of the invention will become apparent from the subclaims and from the following description of preferred embodiments with reference to the drawings.

Fig. 1

einen Werbeaufsteller zum Präsentieren eines nach der Erfindung abgedichteten Informationsblattes,

Fig. 2

ein erfindungsgemäßes Informationsblatt mit Feuchtigkeitsschutz in einer Seitenansicht im Schnitt,

Fig.3

den in Figur 2 dargestellten Verbund aus Informationsblatt und Feuchtigkeitsschutz in einer dreidimensionalen, schematischen Ansicht und

Fig. 4

die Einzelheit "Z" aus Figur 2.

In the drawings shows:

Fig. 1

an advertising display for presenting an information sheet sealed according to the invention,

Fig. 2

an information sheet according to the invention with moisture protection in a side view in section,

Figure 3

the in FIG. 2 illustrated composite of information sheet and moisture protection in a three-dimensional, schematic view and

Fig. 4

the detail "Z" off FIG. 2 ,

In FIG. 1 an inventive advertising display 1 is shown. This is merely an example of application for the invention described below.

The advertising display 1 consists of two legs, which are hinged together in the middle. The two legs have long outside extending and folding frame members that can be folded up or out, so that an information sheet 2, here in the form of a poster, inserted and fixed by folding back the frame members. The size of the insertion pocket corresponds to the usual advertising posters 1 preferably the standard sizes of the paper industry, for example, DINA1, DIN A0 or DINA00, of course, any other format can be considered.

In the Figures 2-4 is one in the in FIG. 1 displayed advertising display 1 shown usable arrangement of an information sheet 2 and a moisture protection according to the invention.

How best FIG. 3 can be seen, the moisture protection consists of a rear cover layer 4 and a front protective layer 3. Between these two layers of the information sheet 2 is arranged, which is here designed as a poster. The edge portions are exaggerated here in order to better represent the individual features of the invention. In practice, the moisture protection will extend beyond the edge of the information sheet 2 only by a maximum of 1-2 mm. This is straight one of the main advantages of the invention that the dimension of the information sheet 2 is not changed by the moisture protection, so that the commercial frame of the advertising displays 1 can be used despite the use of moisture protection and on the other hand, the information sheet 2 does not have to be previously curtailed.

The rear cover layer 4 is folded over at the sides and in the lower edge region to the front and long the dashed line via a weld 5 with the front protective layer 3 is connected. This can be achieved by two basic principles. Either the back cover layer 3 has previously been dimensioned so that the envelope edge does not exceed a certain size or it deliberately becomes a certain waste. Restin purchase.

In all cases, the weld 5 is preferably carried out so that the inwardly directed region of the rear cover layer 4 is separated as a result of welding, so that the weld 5 then forms the inner edge of the upper region of the rear cover layer 4. This separation by welding can also be used to completely cover first the front cover layer 3 to form the insertion pocket for the information sheet 2 with a film. Then, over a hot wire, which is pressed onto the upper side, in the lateral and lower edge region, the film of the rear cover layer 4, which is unbeaten around the edge, is welded to the material of the front protective layer 3 and the inner region is severed.

In the upper area, here the rear cover layer 4 projects beyond the front protective layer 3 and the information sheet 2 arranged behind it around a certain edge, which may for example have a height of 20-50 mm. This edge of the thin elastic material of the rear cover layer 4 can then, after the information sheet 2 has been inserted into the insertion pocket, be turned over and serve as a water-repellent tab. Of course, that of the open border and the towering Tab formed insertion opening 6 may be located both above and below or even on the side of the moisture protection.

The front protective layer 3 and the rear cover layer 4 are made of plastic. In this case, the front protective layer 3 to form a mechanical protection for the information sheet 2 has a greater thickness, for example, 0.200 mm or more. Furthermore, the impression of a high-quality cover in the manner of a glass surface can also be generated via this thickness of the material. The front protective layer 3 is at least in the area in which the information sheet 2 is arranged with the information to be transmitted, transparent, usually transparent. Depending on the information sheet 2, the edge region could be colored, but as a rule the information sheet 2 should be completely visible, so that the entire front protective layer 3 will be transparent.

The back cover layer 4 does not necessarily have to be transparent or transparent. However, a transparent film will be preferred, since this is indeed turned over by a few millimeters around the side edge and the lower edge, so that this edge region will be visible on the front side of the information sheet 2. Although in most applications this edge region will be covered by frame elements, many users will appreciate that the entire information sheet 2 remains visible, giving the impression of a laminated information sheet 2.

Furthermore, of course, a transparent design of the edge region is preferred, so that the same moisture protection can be used without a separate frame, for example, to attach a poster moisture proof on a display window.

Preferably, the front protective layer 3 or the rear cover layer 4 made of a thermoplastic material, in particular polyethylene, polypropylene, polyvinyl chloride Polyoxymethylene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polymethyl methacrylate, polystyrene, polycarbonate, a mixture of these materials, a so-called polyblend made. Both layers can be made of the same material or different materials, as long as they allow these materials to be welded sufficiently. Of course, the material is preferably selected so that it is as kink-resistant and liquid-tight as possible. Furthermore, a thermoplastic or a thermoplastic elastomer may also be used.

Ultimately, the choice of material is a question of manufacturing costs, the amount of which will in turn depend on how often the user wants to reuse the moisture protection. In the case of inexpensive disposable products, preference is given to using a simple thermoplastic material, but more elaborate materials are more likely to be used if the moisture protection is to be reused frequently.

In principle, a similar result could also be achieved with a modification, namely if the rear cover layer 4 would also essentially have the size of the information sheet 2. In this case, of course, then first of all the film-like edge region would have to be welded onto one of the two layers, then subsequently this edge region would be turned over and connected to the opposite layer. This embodiment has the particular advantage that there is no defined front and back, which is interesting, for example, when either the information sheet 2 is to be presented with a frame having a viewing window on both sides or if the moisture protection is independent of a frame , for example, a shop window should be attached.

The weld 5 is best in FIG. 4 to recognize the detail "Z" of Figure 2 in an enlarged view. The elements used are shown schematically here.

In exaggerated illustrated embodiment shown a weld 5 is provided. Typically, this weld 5 is not formed by separate material, although that would be possible, but consist of welding by melting one of the two plastic films or both films. This means that at least the material of the uppermost layer, in this case the remodeled edge of the rear cover layer 4, is melted out and glued to the material of the underlying front protective layer 3 or, if this is likewise melted, also connected in a material or form-fitting manner.

Usually, the moisture protection will first be produced without the information sheet 2. It is of course also possible that alternatively the moisture protection is built around the information sheet 2 around, so that the package of front protective layer 3 and information sheet 2 is placed on the film of the rear cover layer 4, then this is then turned over, so that the welds. 5 can be attached to the edges.

The insertion opening 6 shown in the figures is to be understood as an optional opening. Alternatively, after inserting the information sheet 2, this edge can also be closed. This can either also be done via a weld or an adhesive bond, for which purpose the back cover layer 4 or the front protective layer 3 may be provided at the respective junction with an adhesive strip, preferably on a peelable for producing the adhesive bond by exposing the adhesive strip Protective strip is covered.

LIST OF REFERENCE NUMBERS

1

Display units

2

leaflet

3

Front protection layer

4

Rear cover layer

5

Weld

6

insertion

Claims (10)

Moisture protection for the moisture-proof wrapping of information sheets (2), in particular of information sheets (2) in the form of posters or posters, with an insertion pocket having an insertion opening (6) for inserting at least one information sheet (2), a transparent, front protective layer (3 ), behind which an information sheet (2) inserted into the insertion pocket is arranged with the front side to be presented after insertion, and a rear cover layer (4) for protecting the information sheet (2) against moisture, characterized in that
the front protective layer (3) and the rear cover layer (4) are made of plastic, wherein the rear cover layer (4) is folded around the side edges at least at the two opposite side edges of the front protective layer (3) with a connecting edge and on the front side front protective layer (3) is connected to this. Moisture protection according to claim 1, characterized in that the front protective layer (3) and the connecting edge of the rear cover layer (4) are welded together. Moisture protection according to one of the two preceding claims, characterized in that the rear cover layer (4) also on its underside has a connecting edge, which is folded around the front protective layer (3) and in particular via at least one weld (5) is connected thereto. Moisture protection according to one of the preceding claims, characterized in that the upper edge of the rear cover layer (4) forms the upper edge of the front protective layer (3) by at least 20, preferably more than 50 mm, in order to form a flap which can be folded after insertion of the information sheet (2) surmounted. Moisture protection according to one of the preceding claims, characterized in that the thickness of the rear cover layer (4) is less than 0.200 mm, in particular 0.120 mm or less. Moisture protection according to one of the preceding claims, characterized in that the front protective layer (3) is at least twice as thick as the rear cover layer (4). Moisture protection according to one of the preceding claims, characterized in that the thickness of the front protective layer (3) is at least 0.400 mm, preferably at least 0.500 mm. Moisture protection according to one of the preceding claims, characterized in that the front protective layer (3) and / or the rear cover layer (4) made of a thermoplastic material, in particular polyethylene, polypropylene, polyvinyl chloride, polyoxymethylene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polymethyl methacrylate, polystyrene, Polycarbonate, a mixture (polyblend) of these thermoplastics or of a thermoplastic elastomer are made. Moisture protection according to one of the preceding claims, characterized in that the insertion pocket has a clear internal size of a standard format, in particular DIN A4, DIN A3, DIN A2, DIN A1, DIN A0, DIN A00, or 50x70 cm, 70x100 cm, 20 "x30", 30 "x40", plus one side clearance of each less than 5 mm, preferably less than 2 mm and more preferably from 0.5 to 1 mm. Method for producing a moisture protection according to one of the preceding claims, characterized in that the front protective layer (3) and the rear cover layer (4) are positioned one above the other, then at least two opposite side edges, the rear cover layer (4) turned over and with a connecting edge the front of the front protective layer (3), in particular by welding along a weld (5) is connected.

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