Blister packaging

Abstract

Blister packaging (1) comprising a blister card (2) made of cardboard and a blister cover (3) formed as a separate component and attached to the blister card (2), the blister cover having sealing wings by means of which the blister cover (3) is sealed to the blister card (2), wherein the blister cover (3) is folded from a cardboard blank, characterized in that the blister cover (3) has at least on one side an inwardly folded inner sealing wing (332, 333) which is arranged adjacent to two outwardly folded outer sealing wings (321) by means of which the blister cover (3) is sealed to the blister card (1), wherein the outer sealing wings and / or the at least one inner sealing wing are coated with a sealing wax for this purpose.

Description

[0001] The invention relates to a sales blister pack with a cardboard blister card and a blister hood attached to the blister card, the hood having sealing wings by which the blister hood is sealed to the blister card, wherein the blister hood is folded from a cardboard blank.

[0002] These blister packs hold products in standard retail quantities and are used for storage and presentation in retail stores, preferably suspended from display hooks. The blister pack consists of a blister hood formed from a cardboard blank, which, after being filled with one or more products, is connected by a blister card, usually made of cardboard. This connection can be achieved by gluing, welding, or sealing. For this purpose, the blister card is coated, for example, with a special sealing lacquer, also known as blister lacquer, which is activated by heat during the sealing process and seals the sealing wings of the blister hood to the blister card all the way around.The blister pack is often approximately cuboid in shape and has a front wall and four side walls, which are connected to each other by corner flaps arranged on the longitudinal and / or transverse side walls and bent at an angle of up to 90°. A sealing flap for sealing with the blister card is arranged on each of the longitudinal sides of the side walls; this flap is bent outwards at an angle of 90° or greater. Such a blister pack, also known as a cardboard blister, is disclosed, for example, in DE 92 16 377 U1. The terms "cardboard" or "cardboard" are used synonymously with the term "cardboard" in this context.

[0003] The familiar cardboard blister packs have proven their worth in practice. Unlike the well-known plastic blister packs, these are environmentally friendly to dispose of. However, a disadvantage of these blisters is that they require a relatively large blister card to provide sufficient adhesive surface for the sealing wings. On product display walls, the spacing of the display hooks is fixed, which limits the maximum dimensions of the blister card – and therefore also of the blister cover that holds the product.

[0004] This is where the present invention comes in. The invention is based on the objective of providing a sales blister pack designed as a cardboard blister in which the maximum capacity of the blister cover is increased. According to the invention, this objective is achieved by a blister pack with the features of claim 1.

[0005] The invention provides a sales blister pack designed as a cardboard blister in which the maximum capacity of the blister cover is increased. Because the blister cover has at least one inwardly folded inner sealing flap, adjacent to two outwardly folded outer sealing flaps that seal the blister cover to the blister card, the blister cover can be flush with the blister card on this side. This increases the surface area of ​​the space enclosed by the blister cover and thus its maximum capacity. Preferably, the blister cover has a four-sided or polygonal, and in particular a rectangular, base.

[0006] The term "seal wing" refers to both inner and outer seal wings. An inner seal wing is one folded inwards, towards the interior of the blister pack. An outer seal wing is one folded outwards, away from the interior of the blister pack.

[0007] In a further development of the invention, at least one inwardly folded inner seal wing is sealed to two adjacent, outwardly folded outer seal wings and to the blister card, between which it is positioned. This achieves a stable fastening of the inwardly folded inner seal wing. The inner seal wing is sealed to the outer seal wing on one side and to the blister card on the other. Preferably, the outer seal wings and / or the at least one inner seal wing are coated with a sealing wax.

[0008] In one embodiment of the invention, one of the at least one inner seal wings has a U-shaped contour, the side legs of which cover the outwardly folded outer seal wings. The base of the U-shaped contour, located between the side legs, seals the interior of the blister pack dust-tight to the outside.

[0009] In a further embodiment of the invention, two inwardly folded inner sealing flaps are provided, arranged opposite each other, which essentially close the underside facing the blister card. This forms a blister cover in the form of a folding box, which remains a closed unit even after separation from the blister card, securely packaging the products. Preferably, the two inwardly folded inner sealing flaps overlap at their ends.

[0010] In a further embodiment of the invention, the inner seal wings are positively connected to one another in the overlapping area. Such a positive connection can, for example, be formed by a plug connection in the form of a tab on one inner seal wing that is inserted into a slot in the other inner seal wing.

[0011] In a further development of the invention, the inner seal wings each have a bent insertion tab on opposite sides, which each rests against a side wall of the blister cover. This ensures a complete closure of the underside of the blister cover facing the blister card.

[0012] In one embodiment of the invention, at least one side wall is detachably attached between two adjacent side walls and the blister card by means of three inwardly folded insertion flaps. This allows the blister cover to be opened laterally. Preferably, this side wall is additionally secured by a tamper-evident seal, such as a tamper-evident sticker.

[0013] Other embodiments and configurations of the invention are specified in the remaining dependent claims. Exemplary embodiments are illustrated in the figures and are described in detail below. The figures show: Fig. 1. A schematic representation of a blister pack; Fig. 2 the schematic representation of the blister hood of the blister packaging from Fig. 1; Fig. 3. The representation of the unfolded cardboard blank of the blister packaging. Fig. 2; Fig. 4. A further embodiment of a blister pack hood and Fig. 5. A representation of a blister pack in a third embodiment.

[0014] The blister packaging 1 chosen as an embodiment comprises a blister card 2 on which a blister hood 3 is arranged, with which it is sealed.

[0015] The blister card is essentially a rectangular piece of flat cardboard with rounded corners, coated with a thin layer of sealing wax. Of course, the blister card can also have any other shape. For hanging on a display hook, the blister card 2 is provided with a notch 21.

[0016] The in Fig. The blister pack shown in Figure 2 is folded in one piece from a cardboard blank, which is in Fig. Figure 3 shows the blister pack 3. The blister pack has a rectangular front wall 31, with two longitudinal side walls 32 arranged opposite each other on its long sides and two transverse side walls 33 opposite each other on its short sides. Two right-angled corner tabs 331 are arranged opposite each other on the transverse side walls 33. These tabs lie on the inside of the longitudinal side wall 32 adjacent to them and are sealed to it. Alternatively, they can also be glued.

[0017] The longitudinal side walls 32 and the transverse side walls 33 are connected to each other via the corner tabs 331.

[0018] The longitudinal side walls 32 each transition on their side opposite the front wall 31 into an outwardly angled sealing outer wing 321, which is coated with a layer of sealing wax on its side facing the blister card 2. Alternatively, the entire cardboard blank can be coated with sealing wax. A sealing inner wing 332 adjoins each of the transverse side walls 33 on their side facing away from the front wall 1. The width of the sealing inner wings 332 corresponds to the distance between the outer edges of the two opposing, right-angled sealing outer wings 321; the length of the sealing inner wings 332 corresponds to half the length of the front wall 32.

[0019] After filling the blister cover 3, the two inner sealing wings 332 are folded inwards until they rest on the outer sealing wings 321. The sealing process thus seals the outer sealing wings 321 to the inner sealing wings 332, thereby closing the blister cover 3. Simultaneously, the inner sealing wings 332 are sealed to the blister card 2, thus connecting the sealed blister cover 3 to the blister card 2.

[0020] In further embodiments, the inner seal wings 332 can also be shorter, so that the blister cover 3 is not closed; they can also be longer, so that they overlap. The inner seal wings 332 can also have different lengths.

[0021] In the exemplary embodiment according to Fig. 5 The inner seal wings 333 are U-shaped, with the width of the side legs 3331 of the inner seal wings 333 corresponding to the width of the outer seal wings 321 with which they are sealed. The base leg 3332 overlaps both outer seal wings 321, thus forming a dust guard. Furthermore, the blister cover 3 thus formed is open on its side facing the blister card 2.

[0022] In the exemplary embodiment according to Fig. 4. The longitudinal side walls 32 and one of the two transverse side walls 33 each have a sealing outer wing 321, 334 that is bent outwards at a right angle. The blister cover 3 with the blister card is sealed via these sealing outer wings 321, 334. The two longitudinal side walls 32 are connected to this transverse side wall 33, as described above, by right-angled corner tabs 331 arranged on it.

[0023] The other transverse side wall 33 has a larger insertion flap 335 on each of its three free sides compared to the corner flaps 331. After the sealing outer wings 321, 334 are sealed with the blister card 2, the two opposing insertion flaps 335 rest against a longitudinal side wall 32 of the blister cover 3; the third insertion flap 335 rests – unsealed – against the blister card 2. The insertion flaps 335 are designed such that they are pre-tensioned against the longitudinal side walls 32 and the blister card 3, respectively, thus creating a force-fit connection. The blister cover 3 thus formed can be opened and re-closed at the transverse side wall 33. This transverse side wall 33 can advantageously be provided with a tamper-evident seal, for example, an adhesive seal.

Claims

[1] Blister packaging (1) comprising a blister card (2) made of cardboard and a blister cover (3) formed as a separate component and attached to the blister card (2), the blister cover having sealing wings by which the blister cover (3) is sealed to the blister card (2), wherein the blister cover (3) is folded from a cardboard blank, characterized by , that the blister cover (3) has at least on one side an inwardly folded inner seal wing (332, 333) which is arranged adjacent to two outwardly folded outer seal wings (321) over which the blister cover (3) is sealed with the blister card (1), wherein the outer seal wings and / or the at least one inner seal wing are coated with a sealing wax for this purpose. [2] Blister packaging according to claim 1, characterized by, that at least one inwardly folded inner seal wing (332, 333) is sealed with two adjacent outwardly folded outer seal wings (321) and with the blister card (2) between which it is arranged. [3] Blister packaging according to claim 2, characterized by , that at least one of the at least one inner seal wing (333) has a U-shaped contour, the side legs (3331) of which cover the outer seal wings (321) folded outwards. [4] Blister packaging according to claim 2, characterized by , that two inwardly folded inner seal wings (332) are present, which are arranged opposite each other and which substantially close the underside of the blister cover (3) facing the blister card (2). [5] Blister packaging according to claim 4, characterized by , that the two inwardly folded inner seal wings (332) overlap at their ends. [6] Blister packaging according to claim 5, characterized by, that the two inwardly folded inner seal wings (332) are positively connected to each other. [7] Blister packaging according to any one of claims 4 to 6, characterized by , that the inner seal wings (332) each have a bent insertion tab on opposite sides, which each lie against a side wall (32, 33) of the blister hood (3). [8] Blister packaging according to any of the preceding claims, characterized by , that the blister hood (3) has a four- or multi-sided, in particular rectangular or trapezoidal, base. [9] Blister packaging according to any one of claims 6 to 8, characterized by , that at least one side wall (33, 32) is detachably inserted, in particular force-fitted, between two adjacent side walls (32, 33) and the blister card (2) via three inwardly folded insertion flaps (335).

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