PACKET OF CIGARETTES AND RELATIVE PRODUCTION METHOD

Abstract: A packet (2) of cigarettes and relative production method, wherein a label (7), defined at least partly by a portion (8) of magnetic tape, is applied to a component (3a, 16, 20) of the packet (2) so as to be visible on the outside of the finished packet (2); the label (7) being printed, on the machine and by means of a printing device (34), with data relating to the packet (2).

Description: PACKET OF CIGARETTES AND RELATIVE PRODUCTION METHOD TECHNICAL FIELD The present invention relates to a packet of cigarettes . In particular, the present invention relates to a parallelepiped-shaped packet of cigarettes comprising an outer package normally formed by folding sheet material, and an inner wrapping of foil or paper wrapped about a group of cigarettes . Here and hereinafter, the term "outer package" is used to indicate an outer wrapping normally formed from a sheet of paper or from a blank of cardboard or similar; or an overwrapping formed from a sheet of transparent material; or the above outer wrapping and overwrapping combined. BACKGROUND ART In patent EP 317,202, a packet of the type described above is provided with a portion of magnetic tape visible from the outside, and on which is recorded data unequivocally identifying the packet. In other words, the portion of magnetic tape constitutes for the packet, among other things, a certificate of origin making any attempt to counterfeit the packet extremely complicated and expensive. To produce such a packet, packing machines are provided with a line for supplying a prerecorded magnetic tape, from which portions containing the data relative to the packets are cut off successively. Together with the data recorded on the respective portion of magnetic tape, it is often desirable to also provide each packet with data of interest, not so much to the maker or retailer, as to the consumer, such as the date of manufacture and, more importantly, a possible sell-by date. Obviously, consumer-directed data cannot be recorded magnetically on the magnetic tape, by requiring special reading devices for it to be read; and neither can it be prerecorded, since information such as the sell-by date of the packet can only be applied to the packet when it is actually produced. DISCLOSURE OF INVENTION It is an object of the present invention to provide a packet of cigarettes designed to provide consumers with all necessary information in clear text, in a low-cost manner and with substantially no alterations to existing packing machines . According to the present invention, there is provided a packet of cigarettes comprising a number of sheet material packing components folded and assembled to one another to define an inner wrapping and an outer package; and a label applied to at least one of said packing components and visible on the outside of said packet; characterized in that at least one portion of said label is defined by a portion of magnetic data recording tape; said label having printed graphic signs. The present invention also relates to a method of producing a packet of cigarettes. According to the present invention, there is provided a method of producing a packet of cigarettes, the method comprising the first steps of folding and assembling to one another a number of sheet material components to define an inner wrapping and an outer package; and a second step of supplying and applying a label to at least one of said components, so that the label is visible on the outside of the said packet; said label being at least partly defined by a portion of magnetic data recording tape; and the method being characterized by comprising the further step of printing graphic signs on said label during or after said second step . BRIEF DESCRIPTION OF THE DRAWINGS A number of non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which: Figure 1 shows a schematic view in perspective, partly in block form, of a portion of a production line of a machine for producing a first embodiment of the packet according to the present invention; Figure 2 shows a schematic view in perspective, partly in block form, of a portion of a production line of a machine for producing a second embodiment of the packet according to the present invention; Figure 3 shows a larger- scale view of a detail of the second embodiment of the packet according to the present invention; Figure 4 shows a schematic view in perspective, partly in block form, of a variation of the Figure 1 production line. BEST MODE FOR CARRYING OUT THE INVENTION Number 1 in Figure 1 indicates as a whole a line for producing packets 2, each of which is substantially parallelepiped- shaped and houses a group of cigarettes (not shown) enclosed in an inner wrapping 3 made by folding a sheet 3a of foil in known manner. Each packet 2 comprises an outer package 4, which, in the example shown, comprises an outer wrapping 5 about inner wrapping 3 , and an overwrapping 6 of transparent material - in the example shown, polypropylene - covering outer wrapping 5. Packet 2 also comprises a label 7 defined by a portion 8 of magnetic data recording tape, which, in the specific example shown, is connected to outer wrapping 5 and has graphic signs 9 visible on the outside of packet 2 and containing, for example, the date of manufacture of packet 2. In variations not shown, label 7 is connected to overwrapping 6 , or - in the event packet 2 is a so-called "soft" pack, in which part of inner wrapping 3 is visible on the outside - is connected astride outer wrapping 5 and inner wrapping 3. Line 1 comprises a known supply line 10 in turn comprising a support 11 for a reel 12, from which a continuous strip 13 of sheet material is unwound and fed by a conveyor 14 to a cutting station 15 where strip 13 is converted into a succession of sheets 16 of packing material . In a variation not shown, line 10 is replaced by a known line (not shown) for supplying precut sheets 16 of packing material defined, for example, by blanks. Each sheet 16 of packing material is fed by a conveyor 17 to the input of a known packing wheel 18 forming part of line 1, and by which sheet 16 of packing material is folded about a respective inner wrapping 3 to form respective outer wrapping 5. On a known cellophaning machine 19 downstream from packing wheel 18 and forming part of line 1, outer wrapping 5 is then covered with a sheet 20 of transparent overwrapping material, which is folded in known manner about outer wrapping 5 to form overwrapping 6 and so complete outer package 4. Line 1 also comprises a line 21 for supplying portions 8, and which in turn comprises a support 22 for a reel 23, from which is unwound a continuous magnetic tape 24, one surfaca 25 of which is coated, in the examp l e shown, with an optional layer 26 of lacquer. On the opposite side to surface 25, tape 24 has a surface 27 , which is cold gummed and protected by a nonstick strip 28, which is unwound together with tape 24 and guided by a guide roller 29 along a collecting path R. Tape 24 is fed by two rollers 30 to a cutting station 31 where it is cut into a succession of portions 8. Portions 8 so formed are then fed onto a conveyor 32 - preferably a nonstick suction conveyor - by which they are accelerated to separate them by a distance equal to the length of a sheet 16 of packing material before being fed by a conveyor 33 onto the outer surface of strip 13 on conveyor 14. Strip 13, together with portions 8, is then fed by conveyor 14 through cutting station 15, and the resulting sheets 16 of packing material are fed by conveyor 17 onto packing wheel 18. Along line 1 and upstream from conveyor 33, there is provided a printing device 34 - optical, ink-jet or other type - for printing graphic signs 9 on surface 25 of each portion 8. As shown in the variations indicated by the dash lines in Figure 1, printing device 34 may be located anywhere along line 1 permitting on-line printing of graphic signs 9 on portions 8. As an alternative to line 1, Figure 2 shows a production line 35, the parts of which are indicated, wherever possible, using the same reference numbers as for the corresponding parts of line 1. L ine 35 produces a succession of packets 2, each having a label 7, which is integral with outer wrapping 5 and, as shown more clearly in Figure 3, is defined by a rectangular portion 36 of paper to which is connected a rectangular magnetic portion 8 smaller than portion 36. The part of portion 36 not occupied by portion 8 comprises a portion bearing graphic signs 9, which are printed on portion 36 by printing device 34. Line 35 is similar to line 1, except that line 21 supplying portions 8 on line 1 is replaced by a line 37, which, in addition to line 21, also comprises a further line 38 located upstream from line 21 and for supplying portions 36. Line 38 comprises a support 39 for a reel 40, from which is unwound a continuous strip 41 of paper material, one surface 42 of which is cold gummed and protected by a nonstick strip 43, which is unwound together with strip 41 and guided by a guide roller 44 along a collecting path Rl . Continuous strip 41 is guided by a roller 45 onto a conveyor 46 - preferably a nonstick suction conveyor - by which continuous strip 41 is fed through a cutting station 47 to obtain a continuous succession of portions 36. Portions 36 are transferred to a conveyor 48, by which they are accelerated and spaced a given distance apart. And to each portion 36 is applied a respective portion 8, which, at the output of line 21, is accelerated by a conveyor 50 and applied to respective portion 36 by a roller 49. Each label 7 so formed is transferred by a conveyor 51 to a conveyor 52, by which it is accelerated and separated from the adjacent labels 7 by a distance equal to the length of a sheet 16 of packing material, before being fed by conveyor 33 to the input of line 10. Figure 4 shows a production line 53 similar to line 1, except that, as opposed to being arranged in series, lines 10 and 21 may be arranged parallel. More specifically, on line 53, line 10 (not shown in Figure 4) supplies sheets 16 of packing material (not shown in Figure 4) to packing wheel 18 (not shown in Figure 4) , which forms and supplies outer wrappings 5 to cellophaning machine 19 (not shown in Figure 4) to form overwrappings 6 and so complete outer packages 4. As packets 2 are conveyed on a conveying wheel 54 upstream or downstream from cellophaning machine 19, a label 7, fed onto wheel 54 by line 21 and conveyor 33, is applied to overwrapping 6 or to the outer surface of outer wrapping 5 of each packet 2. In a variation not shown, line 21 of production line 53 is replaced by a line 37. In a further variation not shown, tape 24 of line 21 is lacquered on the machine by a lacquering device (not shown) downstream from reel 23.

Claims: CLAIMS 1) A packet of cigarettes comprising a number of sheet material packing components (3a, 16, 20) folded and assembled to one another to define an inner wrapping (3) and an outer package (4) ; and a label (7) applied to at least one of said packing components (3a, 16, 20) and visible on the outside of said packet (2) ; characterized in that at least one portion of said label (7) is defined by a portion (8) of magnetic data recording tape; said label (7) having printed graphic signs (9) . 2) A packet as claimed in Claim 1, characterized in that said outer package (4) comprises an outer wrapping (5) ; said label (7) being applied to an outer surface of said outer wrapping (5) . 3) A packet as claimed in Claim 1, characterized in that said outer package (4) comprises an outer wrapping (5) , and an overwrapping (6) of transparent material covering said outer wrapping (5) ; said label (7) being applied to said overwrapping (6) . 4) A packet as claimed in any one of Claims 1 to 3 , characterized in that said label (7) is defined entirely by a portion (8) of magnetic tape. 5) A packet as claimed in any one of Claims 1 to 4 , characterized in that said graphic signs (9) are printed on said portion (8) of magnetic tape. 6) A packet as claimed in any one of Claims 1 to 5, characterized in that said portion (8) of magnetic tape comprises a layer (26) of lacquer; said graphic signs (9) being printed on said layer (26) of lacquer. 7) A packet as claimed in any one of Claims 1 to 4 , characterized in that said label (7) comprises a portion (36) of sheet material; said portion (8) of magnetic tape being applied to said portion (36) of sheet material. 8) A packet as claimed in Claim 7, characterized in that said graphic signs (9) are printed on said portion (36) of sheet material. 9) A method of producing a packet (2) of cigarettes, the method comprising the first steps of folding and assembling to one another a number of sheet material components (3a, 16, 20) to define an inner wrapping (3) and an outer package (4) ; and a second step of supplying and applying a label (7) to at least one of said components (3a, 16, 20), so that the label (7) is visible on the outside of the said packet (2) ; said label (7) being at least partly defined by a portion (8) of magnetic data recording tape; and the method being characterized by comprising the further step of printing graphic signs (9) on said label (7) during or after said second step. 10) A method as claimed in Claim 9, characterized in that said outer package (4) comprises an outer wrapping (5) ; said label (7) being applied to an outer surface of that (16) of said components (3a, 16, 20) used to form said outer wrapping (5) . 11) A method as claimed in Claim 9, characterized in that said outer package (4) comprises an outer wrapping (5) , and an overwrapping (6) of transparent material; said label (7) being applied to that (20) of said components (3a, 16, 20) used to form said overwrapping (6) . 12) A method as claimed in any one of Claims 9 to 11, characterized in that said label (7) is applied to said component (3a; 16; 20) before said first steps are performed. 13) A method as claimed in any one of Claims 9 to 11, characterized in that said label (7) is applied to said component (3a; 16; 20) after said first steps are performed. 14) A method as claimed in any one of Claims 9 to 13, characterized in that said graphic signs (9) are printed on said portion (8) of magnetic tape. 15) A method as claimed in any one of Claims 9 to 13, characterized in that said label (7) comprises a portion (36) of sheet material; said portion (8) of magnetic tape being connected to said portion (36) of sheet material . 16) A method as claimed in Claim 15, characterized in that said graphic signs (9) are printed on said portion (36) of sheet material. 17) A method as claimed in any one of Claims 9 to 16, characterized in that said portion (8) of magnetic tape (8) is detached from a continuous magnetic tape (24) . 18) A method as claimed in Claim 17, characterized in that said continuous magnetic tape (24) is lacquered.

Inventors: DRAGHETTI FIORENZO, LI VIGNI ANGELO, DRAGHETTI, FIORENZO, LI VIGNI, ANGELO
Applicants: DRAGHETTI FIORENZO, GD SPA, LI VIGNI ANGELO, DRAGHETTI, FIORENZO, G.D SOCIETA' PER AZIONI, LI VIGNI, ANGELO
Application year: 2001
Main classification: B65D85
IPC codes: B65B19, B65B61, B65C1, B65D25, B65D85, G09F3