Abstract:
Packs for paper handkerchiefs usually comprise a wrapper of thin plastic foil and can be reclosed after the initial opening of the pack with the aid of an adhesive tape which is applied to the pack. The invention intends to create a pack with a wrapper which is as harmless to the environment as possible and is easy to handle and, optionally repeatedly reclosable. According to the invention, a closure tab (30) which covers a withdrawal opening (40) in the region of a front panel (13) of the pack (11) is connected to a portion of edges of the withdrawal opening (residual connection 32 ) in a tearable manner to permit an opening of the pack. Furthermore, the invention relates to a blank for forming the pack and a corresponding process.

Description:
BACKGROUND OF THE INVENTION 
     The invention relates to a pack, especially a cuboid pack, for receiving a stack of (paper) handkerchiefs made of paper, parchment, thin cardboard, foil or the like, having a front panel, a rear panel, side panels, an end panel, a bottom panel and a closure tab which covers a withdrawal opening at least in the region of the front panel, which closure tab is connected to pack parts which form the end panel and at least partially covers edges of the withdrawal opening. The invention further relates to a blank, especially for forming said pack, and a process for producing a pack, especially from such a blank. 
     So-called paper handkerchiefs are conventionally packed in bundles of usually ten handkerchiefs in a wrapper of plastic foil or paper. The handkerchiefs should be protected against external influences until they are withdrawn. At the same time, the initial opening of the pack should be easy and permit a reclosure. Moreover, the pack should be ecologically harmless, i.e. there should remain as little waste as possible after all handkerchiefs have been used. A pack having the features mentioned at the beginning is known from DE-U-83 19 608.0. 
     SUMMARY OF THE INVENTION 
     It is the object of the present invention to further improve the described pack with regard to the mentioned criteria. In particular, it is intended to create a pack which is particularly suitable for a wrapper made of paper or similar materials. 
     According to the invention, this object is attained by providing a connection between the closure tab and a portion of the edges of the withdrawal opening which connection is tearable to permit an opening of the pack. Optionally, the pack may comprise an adhesive connection between the closure tab and the edges of the withdrawal opening, especially a durable adhesive connection which permits a reclosure of the pack, preferably formed from a so-called hot-melt. The pack according to the invention is easy to open, offers good protection for the contents and is particularly harmless to the environment since the wrapper can be made from paper. 
     Expediently, the tearable connection (connection line) is formed in a lower region of the withdrawal opening, especially in a region which is located opposite the end panel which adjoins the front panel. As a result, the effect of the force applied at the time of the initial opening of the pack is favourable. 
     Additional features of the invention are described in further claims and relate, inter alia, to the specific arrangement and design of the closure tab. The blank according to the invention for forming the pack according to the invention and the process for producing the pack are also described in further claims. 
     Particularly advantageous embodiments are described below in detail with reference to the drawings, in which: 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 shows a blank according to the invention for a pack according to the invention, 
     FIG. 2 shows the blank of FIG. 1 after a process step has been completed, i.e. with a downwardly folded closure tab, 
     FIG. 3 shows a perspective view of a pack according to the invention in a closed state, and 
     FIG. 4 shows the pack of FIG. 3, but with an opened closure tab and a partly withdrawn handkerchief. 
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
     The blank 10 for forming a pack 11 according to the invention as illustrated in FIG. 1 has a rectangular basic shape. The largest surfaces within the blank 10 are a rear panel 12 and a front panel 13 which are connected to one another by a long narrow side panel 14. Longitudinal tabs 15, 16 for forming a side panel 17 located opposite the side panel 14 adjoin the rear panel 12 on the left and the front panel 13 on the right. 
     Further blank parts which form an end panel 18 adjoin above the aforedescribed series of blank parts 12 to 16. These further parts are, from left to right, a side tab 19, an outer cover tab 20 (connected to the rear panel 12), a side tab 21, an inner cover tab 22 (above the front panel 13) and a side tab 23 which forms an extension of the longitudinal tab 16. In a very similar manner, blank parts which form a bottom panel 24 adjoin the opposite end of the blank parts 12 to 16. These parts are a side tab 25, an outer cover tab 26 (connected to the rear panel 12), a side tab 27, an inner cover tab 28 (connected to the front panel 13) and a side tab 29. 
     The thin lines in FIGS. 1 and 2 illustrate future folding lines, which may be prepunched if required, whereas the thicker lines illustrate the outline and incisions. A special feature can be seen in the region of the front panel 13, in particular between this front panel and the inner cover tab 22 located above the front panel. In this region, there is disposed an approximately trapezoidal closure tab 30 which is separated from the inner cover tab 22 by a folding line 31. 
     Apart from this line, the closure tab 30 is detached from the blank 10, especially by means of punch cuts 33, 34, with the except ion of a residual connection 32. The punch cuts 33, 34 form continuations of incisions 33a, 34a and extend from the points of contact 35, 36 which are directed towards the front panel 13 and are located between the side tabs 21 and the side panel 14, and between the side tab 23 and the longitudinal tab 16. From these points of contact 35, 36, the punch cuts 33, 34 extend in the direction towards the inner cover tab 28 or the bottom panel 24 in a converging manner. In the region of incision ends 37, 38, the punch cuts 33, 34 are finally connected by the residual connection 32 which has already been mentioned. 
     Additionally, the punch cuts 33, 34 are connected to one other by a transversely directed folding line 39 a short distance above the residual connection 32. The function of this folding line is evident in conjunction with FIG. 2. When the pack according to the invention is produced, the inner folding tab 22 is offset downwardly, by a distance which is twice he distance between the folding line 39 and the residual connection 32, by way of a downward folding of the closure tab 30 along the residual connection 32 and an upward folding along the folding line 39. Now, the folding line 31 terminates at the points of contact 35, 36. 
     Before the blank is folded as described above, a durably effective adhesive is applied, for example in the form of a hot-melt 41, 42 (see FIG. 4), preferably in the region of the punch cuts 33, 34 which define a future withdrawal opening 40. The adhesive is preferably adapted such that the closure tab 30 which will rest on the adhesive at a later stage can be opened and reclosed repeatedly. 
     The blank 10 is preferably made of a thin paper or paper-like material which means it is particularly easy to dispose. However, it could also be made of thin cardboard, plastic foil or the like instead. The residual connection 32 is adapted to the material. It is destroyed or torn off in order to open the pack. A perforation or the like may be used for this purpose. The tearing process is facilitated by the web 43 which is formed between the residual connection 32 and the folding line 39 and which can be readily grasped with one hand. 
     FIGS. 2 and 3 clearly show that the respective edges 44, 45 of the closure tab 30 overlap the punch cuts 33, 34 (indicated by broken lines) in the region of the withdrawal opening 40. 
     As a result of the folding and the forming of the web 43 as described above, the inner cover tab 22 is reduced in width relative to the outer cover tab 20. The end panel is folded such that, after the forming of a wrapping which is open at both ends and in which the longitudinal tabs 15, 16 overlap in order to form the side panel 17, the side tabs 19, 21, 23, 25, 27, 29 are, first of all, folded inwards. Thereafter, the inner cover tabs 22 and 28 and, finally, the outer cover tabs 20 and 26 are folded inwards. Consequently, the outer cover tabs 20, 26 are located on the outside in the completed pack 11 as illustrated in FIGS. 3, 4. The above mentioned tabs are preferably bonded to one another adhesively. 
     The downward folding of the closure tab 30 and the resulting reduction of the width of the inner cover tab 22 contribute substantially to the accomplishment of the rectangular shape of the blank 10. In particular, the upper and lower blank edges 46, 47 extend rectilinearly without any interruptions. As a result, it is possible to sever the blanks 10 from a web of blanks in an extremely simple manner. At the same time, the lower region of the completed pack, i.e. the region of the bottom panel 24, is particularly stable because the side tabs 25, 27, 29 and cover tabs 26, 28 rest on top of one another in this region. This ensures a secure grasping of the pack and an overall stable package until the withdrawal of the last handkerchief. 
     FIG. 4 illustrates the pack 11 in the opened state, i.e. with a severed residual connection 32, a released adhesive connection (hot-melt 41, 42) and an upwardly folded closure tab 30. A handkerchief 48 which is partly withdrawn is indicated by broken lines in tile withdrawal opening 40 which is formed in this manner. To facilitate the withdrawal of the handkerchief, not only the closure tab 30 but also a small part of the adjoining end panel 18 can be folded up together with the closure tab. For this purpose, folding lines 49 and 50 which start from the points of contact 35 and 36, respectively, and are located between the side tab 21 and side panel 14 and between the side tab 23 and the longitudinal tab 16 are each provided with a short incision 49a and 50a, respectively. Because the longitudinal tabs 15, 16 and, consequently, the side tabs 19, 23 overlap, an incision 51a is disposed analogously to the incision 50a along a folding line 51 between the longitudinal tab 15 and the side tab 19. The withdrawal opening 40 is thus extend ed and permits an easy withdrawal of individual handkerchiefs 48 from the pack 11 which preferably holds ten handkerchiefs. 
     In a further embodiment which is not illustrated, an adhesive tape is applied to the web 43 in order to extend the closure tab 30. This adhesive tape is bonded either only to the closure tab 30 or to this closure tab and, at the same time, to the front panel 13 (when the pack 11 is closed).