WO2002064452A1

WO2002064452A1 - Cigarette packet and cut sheet

Info

Publication number: WO2002064452A1
Application number: PCT/EP2002/001481
Authority: WO
Inventors: Bodo-Werner Lutzig
Original assignee: Philip Morris Products S.A.
Priority date: 2001-02-13
Filing date: 2002-02-13
Publication date: 2002-08-22
Also published as: CA2437938C; ATE370898T1; HK1068316A1; EA200300890A1; AU2008221543B2; ES2295326T3; CN1289363C; JP2004524228A; BG108107A; CA2437938A1; DE10106547A1; KR100786445B1; UA74627C2; AU2008221543A1; BG65386B1; CN1525929A; DE50210751D1; MXPA03007220A; BR0207210B1; EA005349B1

Abstract

The invention relates to cut sheets (100) and cigarette packets produced therefrom with rounded or chamfered edges, whereby the rounded or chamfered edges are produced by means of scored lines (180) in the cut sheet material.

Description

Cigarette box and blank sheet

description

The invention relates to a box, in particular for cigarettes, in which one or more of the edges are rounded or beveled, and to cut sheets for their production.

Cigarettes are usually brought onto the market either in soft-cup packs or in hard-cup packs, for example in hinged-lid boxes or hinge-lid boxes, but also in so-called rigid-soft packs without a hinged lid. For hard cup packs, it is also known to round or bevel the corners of the boxes. So bswp reveals. EP 0 205 766 Bl hinge-lid boxes, the 4 longitudinal edges of which are all rounded, so that less material is required for the manufacture of the cigarette box and the box is better in the hands of the consumer.

In order to achieve rounded or beveled edges, the blank from which the cigarette box is made is made is provided with grooves on the areas forming the edges of the cigarette box. According to US Pat. No. 4,955,531, the grooves can be produced in a form in which the cut sheet is pressed in at the relevant points by a grooved body. On the opposite side there is a creasing channel into which the material of the cutting sheet can be pressed. In the case of grooves running in parallel, a wavy cross section is produced in accordance with the method described. When the cut-to-size sheet processed in this way is folded up, the round (in the case of several grooves) round or (in the case of two grooves) bevelled edges of the cigarette packet are then automatically formed along the grooves.

The disadvantage here, however, is that due to the inherent rigidity and the restoring forces of the packing material

Gluing to make the cigarette pack is not without problems. This is usually done on overlapping areas of the blank that form the side walls of the box. Due to the rounded or beveled edges, these overlapping areas are significantly reduced compared to a normal hinge-lid box, so that only a limited amount of adhesive can be applied. The result is that the machine production is slowed down, since it is necessary to wait longer until the relatively small amount of adhesive has dried properly, since the box would otherwise open again due to the restoring forces of the material.

This is particularly pronounced when Breitbahn cardboard or paper is used to manufacture the hinge-lid box. When making paper or cardboard, the product-forming material is placed on a fast-moving belt. This causes the long fibers in the material to orient themselves preferably in the longitudinal direction. Depending on whether the cut sheet is later cut longitudinally or transversely from the finished material web, the long fibers in the cut sheet are transverse to the longitudinal axis of the cut sheet (Wide web) or along the longitudinal axis of the blank (narrow web). The orientation of the fibers transversely to the longitudinal direction of the broad web cutting sheet causes good flexibility about the transverse axis, but poor flexibility about the longitudinal axis. The restoring forces for the side gluing are therefore stronger than with narrow web cut sheets, in which the situation is exactly the opposite due to the reversed position of the long fibers in the material. On the other hand, however, wide web cut sheets are preferred for hinged boxes because they - the stability of the lid (no slanted closure, no easy tearing of the lid), the rigidity of the pack due to a higher resistance in the transverse direction and the flat position of the pack, i.e. the lowest possible Curvature of the pack, favor the use of narrow web materials significantly.

The object of the invention is therefore to avoid the disadvantages described above, in particular when using wide web cut sheets.

This object is achieved by a box made of foldable material, such as paper, cardboard, plastic, plastic film or plastic laminate with a box part, the box part having a box front wall, a box back wall, box side walls and a box bottom and one or more edges of the box by each 2 or more adjacent, essentially parallel fold lines in the foldable material are rounded or beveled, characterized in that the fold lines are scored lines and by a cut sheet for producing the box, i.e. a cut sheet made of foldable material with a first main area with left and right first side surface field, a floor field adjoining the upper edge of the first main surface field and a second main surface field with a left and right second side surface field adjoining the upper edge of the floor field, and with one or more folding area (s) each because two or several, essentially parallel fold lines, characterized in that the fold lines are scored lines and that the fold area (s) is arranged between one or more of the side surface panels and one or both main surface panels or between one or both main surface panels and the bottom panel is / are.

By folding the blank sheet described above, a hard cup pack is obtained which consists of only one box part, into which one is wrapped in an inner liner

Cigarette group can be used. Usually the box size is such that the cigarette group sits firmly in the box and protrudes slightly at the top, open end of the box to allow the consumer to open the box and remove the cigarettes.

As a rule, however, the box will have, in addition to the box part, a lid part which has a lid front wall, a lid rear wall, lid side walls and an upper side of the lid and is articulated with the lid rear wall to the box rear wall, so that a conventional hinged lid box results.

In order to obtain this usual hinge-lid box, the cutting sheet described above has additional fields, namely a third main surface field with a left and right third side surface field following the second main surface field, with an upper side field and at the upper edge of the third main surface field the upper edge of the top panel adjoins a fourth main panel with a left and right fourth panel and the blank has one or more fold area (s) each with two or more, substantially parallel scoring lines between one or more of the third and fourth panels and the third and / or fourth main surface area or between the third and / or fourth main surface area and the top side area is / are arranged. In addition to the fields described, the blank advantageously also has left and right second side surface field flaps on the lower edge of the left and right second side surface fields and left and right third side surface field flaps on the upper edge of the left and right third side surface fields. These side panel flaps serve to reinforce the bottom and the lid of the finished box.

There is preferably a reinforcement field on the upper edge of the fourth main surface area, which is glued to the inside of the fourth main surface area during manufacture of the box and also serves for reinforcement.

In the scribe lines, the thickness of the material forming the package is reduced by a scribe knife. For this purpose, the blank is placed on a smooth surface and processed with a scoring knife, so that in addition to compression, material can also be removed. Depending on the shape of the

Scoring knife arises bswp. a v-shaped or u-shaped cross-section. There. If the base does not have channels at the points opposite the scoring knife, as is known from the prior art, but rather a smooth surface, there is a reduction in thickness and not, as is known in the prior art, a deformation without reduction in thickness. The side surface areas of this cut sheet provided with scoring lines are then first bent by 90 ° to produce the cigarette pack, the restoring forces being significantly lower, in particular when using wide web materials, so that faster gluing is possible in machine production.

The degree of thickness reduction depends on the material used, but will generally be 10 to 80% of the total thickness, preferably 20 to 70%, very particularly preferably 40 to 50%. The scoring lines are preferably on the side of the blank sheet that forms the inside of the finished box. This has the further advantage of a more appealing visual appearance of the finished box. In the case of boxes with round edges of the prior art, the grooves can always be seen at the edges. This can be avoided with the present invention. As far as the scoring lines are on the inside of the box, the outside of the box which is visible to the consumer is untreated and shows a smooth surface.

The extent and type of rounding can be determined by the number of scoring lines and their distance from one another. Preference is given to 6 to 8, in particular 7, scoring lines per folding area which are at a distance of approximately 1 mm from one another. When folding, a box with rounded edges is created; the radius of the curve then corresponds approximately to that of a commercially available cigarette. Also preferred are 2 scoring lines per fold area, which are located at a distance of 6 to 8 mm, in particular about 7 mm. When folding, a box with bevelled edges is created.

The scoring lines preferably extend over the entire length and / or width of the box, so that completely round or beveled transverse and / or longitudinal edges are obtained.

All customary materials can be used as foldable materials for the cut sheets and the cigarette boxes. In particular, the papers and boxes usually used for cigarette boxes, with or without a coating, but also plastic materials. Breitbahn papers and cartons are particularly preferred, in which the scoring lines have a particularly positive effect on the restoring forces and thus on fast processing. All 4 longitudinal edges of the box, ie the longitudinal edges of the box part and the longitudinal edges of the lid part (if present), are particularly preferably rounded or chamfered, but not the transverse edges. With a corresponding design of the cutting sheet, however, it is also possible that only 2 longitudinal edges (adjacent or diagonally opposite) or in addition to the longitudinal edges, the transverse edges are rounded and / or beveled.

It is further preferred that the transverse edges between the box base, the front wall of the box and the rear wall of the box and, if a lid part is present, the transverse edges between the front wall of the box, the rear wall of the lid and the top of the lid are rounded or chamfered, but not the longitudinal edges of the box, i.e. the longitudinal edges of the box part and, if available, the longitudinal edges of the lid part.

The cut sheets are produced in a known manner. That the cut sheets are unwound and printed from sheets of cut sheet material, which are stored on rolls, preferably as wide web cut sheets. This is usually followed by an operation in which the cut sheets are treated in the manner described by a scoring knife and at the same time punched and / or cut and, if necessary, embossed. The finished cigarette box, which usually contains a cigarette group encased in an inner liner, is then obtained mechanically by customary folding and gluing on the side surfaces. In the hinge-lid boxes according to the invention, a conventional collar part is normally also used, which in the opened box projects something on the inside of the front wall of the box and has a cutout which enables the cigarettes located in the box to be gripped.

The invention is explained below on the basis of an exemplary embodiment. Show it: 1 shows a cross section through a blank 100 according to the invention with a scoring line 180,

Fig. 2 shows a cross section through an inventive

Blank sheet 100 with another embodiment of a scoring line 180,

3 shows a cross section through a cutting sheet of the prior art, "

4 shows a blank 100 according to the invention for producing a hinge-lid type cigarette packet 10 according to the invention,

Fig. 5 shows a cigarette box 10 of the invention

Hinge-lid type, the 4 long edges of which are rounded,

6 shows a cross section of the cigarette box 10 of FIG.

5, FIG. 7 shows a cross section through a cigarette box 10 with beveled edges, and FIG. 8 shows a blank 100 according to the invention for producing a cigarette box 10 according to the invention without a cover part.

1 shows a cross section through a blank 100 with a scoring line 180 with a V-shaped cross section. The cross section of the scoring line 180 depends on the scoring knife used and can, for example, also have a more acute angle than in FIG. 1 or be rectangular, as is shown in FIG. 2.

For comparison, a groove known from the prior art is shown in cross section in FIG. 3, which does not result in a reduction in thickness as in accordance with the invention.

4 shows a blank 100 for producing a cigarette box 10. The main surface areas 122, 124, 142 and 144 can be seen, which in the finished cigarette box result in the box front wall 22, the box rear wall 24, the lid front wall 42 and the lid rear wall 44. The bottom panel 130 and the top panel can also be seen 150 and the side surface areas 126, 127, 128, 129, 146, 147, 148 and 149, which in the finished box correspond to the box bottom 30, the lid top 50 and the side walls 26, 28, 46 and 48. The cut sheet 100 of FIG. 4 has 7 substantially parallel scoring lines 180. Due to the somewhat smaller dimensions, only 4 scoring lines 180 are provided in the reinforcement field 170. Lines around which individual parts of the blank are folded are shown in dashed lines (with the exception of the scoring lines 180) in FIG. 4 and are identified by the reference number 182. The blank 100 also has two incisions 184, 185. To produce the cigarette box 10, the side surface panels 128 and 129 can first be folded upwards by 90 ° and the side surface panel flaps 160 and 161 thereon can also be folded inwards by 90 °. Then the lower part of the cut sheet 100 with the bottom surface 130 and the first main surface panel 122 is folded upwards by 90 °, as a result of which the side panel flaps 160 and 161 come into contact with the bottom panel 130 and are glued. If the first main surface area 122 is folded in further (by 90 °), the side surface areas 128, 129 and 126, 127 come to lie one above the other and can be glued so that the box part 20 is finished. The cover part 40 is produced in a similar manner, ie the side surface panel flaps 162 and 163 are glued to the top side panel 150. The reinforcement panel 170 is glued inward onto the fourth main surface panel 142 and then the side surface panels 148, 149 and 146, 147 are glued together.

The finished box can then be seen in FIG. 5. Are shown u. a. the rounded longitudinal edges 32, 34, 36, 38, 52,

54, 56, 58 and the non-rounded transverse edges 31, 33, 51,

55. The scoring lines 180 are located on the inside of the box and cannot be seen from the outside by the consumer. FIG. 6 shows a cross section through the box part 20 of the box 10 of FIG. 5, the rounded longitudinal edges 32, 34, 36 and 38, the overlapping side face surfaces 126, 128 and 127, 129 and that if the rounded edges are not taken into account , For rectangular hinge-lid boxes, the substantially rectangular cross-section of the box 10 can be seen.

FIG. 7 shows a cross section through the box part 20 of a box 10 with chamfered edges 32, 34, 36, 38, each edge being formed by two scoring lines 180 located on the inside.

8 shows a blank sheet 100 for producing a cigarette box 10 without a cover part 40. The blank sheet 100 consists of the two first main surface areas 122 and 124 with their side surface areas 126, 127, 128 and 129 and the bottom area 130 located between them. The side area areas 128 and 129 have side panel flaps 160 and 161 which, when folded, are glued to the bottom panel 130 and help stabilize the box.

Claims

claims

1. Box (10) made of foldable material with a box part (20), the box part (20) having a box front wall (22), a box back wall (24), box side walls (26, 28) and a box bottom (30) and one or more edges of the box (10) are rounded off or beveled by 2 or more adjacent, essentially parallel fold lines in the foldable material, characterized in that the fold lines are scored lines (180).

2. Box (10) according to claim 1, characterized in that it further comprises a lid part (40) with a lid front wall (42), a lid rear wall (44), lid side walls (46, 48) and a lid top (50), wherein the lid part (40) with the lid rear wall (44) is hinged to the box rear wall (24).

3. Box (10) according to claim 1 or 2, characterized in that the scoring lines (180) are located on the inside of the box (10).

4. Box (10) according to one of claims 1 to 3, characterized in that all 4 longitudinal edges (32, 34, 36, 38) of the box part (20) and, if present, all 4 longitudinal edges (52, 54, 56, 58) of the lid part (40) or the transverse edges (31, 33) between the box front wall (22) and box rear wall (24) and box bottom (30) and, if present, the transverse edges (51, 53) between the lid front wall (42) and the lid rear wall ( 44) and the top of the cover (50) are rounded or beveled.

5. Box (10) according to one of claims 1 to 4, characterized in that the foldable material is wide web cardboard or wide web paper.

6. Box (10) according to one of claims 1 to 5, characterized in that the scoring lines are formed by a 10-80% reduction in the thickness of the foldable material.

7. Cutting sheet (100) made of foldable material with a first main surface area (122) with a left and right first side surface area (126, 127), with a bottom area (130) on the upper edge of the first main area area (122) and on the upper edge of the Bottom panel (130) connects a second main panel (124) with a left and right second side panel (128, 129), and with one or more folding area (s), each with two or more, essentially parallel fold lines, characterized in that the fold lines Scribe lines (180) and that the folding area (s) between one or more of the side surface areas (126, 127, 128, 129) and one or both main surface areas (122), or between one or both main area areas (122 , 124) and the floor panel (130) is / are.

Cutting sheet (100) according to Claim 7, characterized in that one side surface field flap (160, 161) adjoins the lower edge of the left and right second side surface field (128, 129).

9. cutting sheet (100) according to claim 7 or 8, characterized in that between all side surface fields (126, 127, 128, 129) and the two main surface fields (122, 124) or between the two main surface fields (122, 124) and the bottom panel (130) fold areas.

0. cutting sheet (100) according to any one of claims 7 to 9, characterized in that a third main surface field (144) with a left and right third side surface field (146, 147) adjoins the upper edge of the second main surface field (124), on the upper edge of the third main surface field (144) a top side field (150) and on the top edge of the top side field (150) a fourth main surface field (142) with a left and right fourth side surface field (148, 149) and that the blank sheet (100) one or has a plurality of fold areas (e), each with two or more, essentially parallel score lines (180) which are located between one or more of the third and fourth side surface areas (146, 147, 148, 149) and the third and / or fourth main surface area (144, 142) or between the third and / or fourth main area area (144, 142) and the top area area (150) is / are arranged.

11. Cutting sheet (100) according to claim 10, characterized in that there is a side surface field flap (162, 163) on the upper edge of the left and right third side surface field (146, 147) and one on the upper edge of the fourth main surface field (142) Reinforcement panel (170) connects.

12. Cutting sheet (100) according to claim 10 or 11, characterized in that between the first to fourth side surface fields (126, 127, 128, 129, 146, 147, 148, 149) and the first to fourth main surface fields (122, 124 , 142, 144) or second to fourth

Main area panels (122, 124, 142, 144) and the bottom panel (130) and the top panel (150) fold areas.

13. Cutting sheet (100) according to one of claims 7 to 12, characterized in that the foldable material is wide web cardboard or wide web paper.

4. Cutting sheet (100) according to one of claims 7 to 13, characterized in that the scoring lines (180) are formed by a 10-80% reduction in the thickness of the foldable material.