KR100822831B1 - Cut sheet and packet, in particular for cigarettes - Google Patents

Abstract

The invention relates to cut sheets (10) and packets produced therefrom, in particular cigarette packets, the four longitudinal edges and four horizontal main edges thereof, all rounded off or chamfered, by means of folded regions with two or more fold lines. At the junction of various folded regions one of the mutually coincident folded regions terminates in a circular arc section of about 45 DEG to 90 DEG and the other in an S-curve.

Description

Cut sheet and packet, in particular for cigarettes}

The present invention relates, in particular, to cutting paper used for packaging for tobacco and tobacco cases made from the cutting paper.

Cigarettes are generally packaged in, for example, foldable cover cases or hinge lid cases and hard or soft cases, but packaged in so-called rigid soft cases without foldable cover parts. In the case of a hard case, it is known that the corners and corners are rounded to protect the consumer's pocket. For example in German Patent No. 29 40 797 a cigarette case comprising a hinged lid type is known for this purpose, rounded at all corners and corners. However, the German patent does not know how to make such a case.

EP 0 764 595 discloses a cigarette case of hinged lid type with four horizontal edges slanted or rounded. The patent also discloses cuttings for making such corners. The European patent also includes reference to US Patent 2 523 251 (lines 51-54 of the fourth stage of European Patent 0 764 595) and the slanted longitudinal edges of US Patent 2 523 251 and the European It also includes a description of the combination of rounded or inclined horizontal edges of patent 0 764 595. However, it is not specified about the manufacturing method of a specific embodiment.

It is practically difficult to make a case in which all the corners, the longitudinal edges and the horizontal edges are rounded or inclined, in particular a folding cover type case for cigarettes, with only one cut sheet.

It is therefore an object of the present invention to provide an easy-to-fabricated cutting edge for use in the manufacture of cases in which all longitudinal and horizontal edges and corners are rounded or inclined as completely as possible, in particular folding folding case for tobacco. .

The object is achieved by a cutting paper comprising a collapsible material, in which the two main surfaces are arranged opposite to each other in a rectangular case and the bottoms connecting the two main surfaces are arranged in a straight line with each other at the cutting paper. And a main surface disposed to face each other in a quadrangular case and a bottom surface connecting the main surface are formed through side surfaces connected to the sides of both main surfaces, and in a quadrangular case. In the cutting paper used for the production of a rectangular cigarette case, the corners of both main surfaces are arranged through the folds, the at least five sides are sealed,

-The two folds abut each other at the corners (preferably at the bottom) of the two main surfaces, which are arranged opposite each other in a rectangular shaped case,                 

One of the two folds in contact with each other (preferably at substantially right angles) is constrained via a partial arc of about 45 to 90 degrees, preferably 65 to 80 degrees, the other via an S-shaped curve, S-shaped curves are curved in partial arcs in the direction of the corners of the main surface,

Preferably a fold is formed through two or a plurality of adjacent fold lines which are substantially parallel.

The above-described cutting paper preferably comprising a first main surface having a left and right first side surface,

The bottom edge is connected to the top edge of the first main surface, and the second main surface comprising the left and right second side surfaces is connected to the top edge of the bottom portion,

The cutting paper has a horizontal fold and a vertical fold, more particularly a horizontal fold between the first main surface and the bottom and the bottom and the second main surface, the left first side surface and the first main surface, Having first to fourth vertical folds between the first main surface and the right first side surface, the left second side surface and the second main surface, and the second main surface and the right second side surface,

The first horizontal fold abuts each other with the first and second vertical folds at the top edge of the first main surface,

A second horizontal fold in contact with the third and fourth vertical folds at the bottom edge of the second main surface.                 

The cutting paper described above can be produced in a simple manner by correspondingly changing the existing machine for cutting paper production. Through a conventional folding and bonding process, a hard case consisting of only one case part is formed, and the inner side of the hard case includes a plurality of cigarettes wrapped in a thin film. In general, the size of the case is determined so that a plurality of cigarettes can be firmly placed in the case, and the open top end slightly protrudes so that the user can open the case and take out the cigarette.

In general, however, the case has a cover portion in addition to the case portion, thus forming a general hinged lid type case.

To obtain a common hinged lid case the cut has an additional face, i.e. a third main surface comprising a third side surface on the left and a right side and connected to a second main surface, the upper edge of the third main surface being the top surface. To the top edge of the top surface, to the fourth main surface including the left and right side surfaces,

The cutting paper has different horizontal and vertical folds, more specifically, third and fourth horizontal folds between the third main surface and the top and top and fourth main surfaces, the left third side surface and the first A fifth to eighth vertical folds between the third main surface, the third main surface and the right third side surface, the left fourth side surface and the fourth main surface, and the fourth main surface and the right fourth side surface,

The third horizontal folds abut one another with the fifth and sixth vertical folds at the top corner of the third main surface,

The fourth horizontal folds abut each other with the seventh and eighth vertical folds at the bottom corner of the fourth main surface.

Also preferably the cutting paper has, in addition to the above-described folds, additionally left and right second side surface lobes in the left and right second side surfaces, and left and right in the left and right third side surfaces. Has a third side surface lobe. The side surface lobe functions to reinforce the bottom and cover of the finished case.

Preferably, at the top edge of the fourth main surface, there is a reinforcement that adheres to the inner side of the fourth main surface when the case is manufactured and likewise reinforces.

As the collapsible material, for example, a paper or, in some cases, a laminate of cardboard or plastic, plastic foil or laminated plastic, preferably a general material for hinge lid cases such as wide paper or wide cardboard can be used. have.

The fold line may be a groove or preferably a groove line and is formed over the entire length and width of the case.

In order to make a groove, the corresponding part of the cutting paper is pressed by a grooving body. On the opposite side, there is a groove channel through which the material of the cutting paper can be pressed. In the case where the grooves run in parallel, a cross section of the waveform is formed corresponding to the above-described method. The method is described, for example, in US Pat. No. 2,523,251 and the results are shown in FIG. By folding the processed cut sheet described above, rounded (in the case of multiple grooves) or inclined case edges (in the case of two grooves) are automatically formed along the grooves.

However, a disadvantage of this method is that the adhesion for packaging manufacture is not easy due to the self-stiffness and the resilience of the packaging material. Typically this problem occurs at the overlap of the cutout, which forms the sidewall of the case. Because of the corners rounded or inclined, the overlap is significantly reduced compared to a general case such as, for example, a hinge lid case, so that only a limited amount of adhesive may be applied. As a result, the mechanical production rate is thus slowed down because relatively small amounts of adhesive dry out in good condition because the case bond can be separated again due to the restoring force of the material if the adhesive does not dry out in good condition. This is because you have to wait for a long time.

This phenomenon is particularly pronounced when wide cardboard or wide paper is used, for example, for the manufacture of hinged lid cases. In the manufacture of paper or cardboard, the material forming the product is placed on a fast moving conveyor. In this process the long fibers in the material are arranged in the longitudinal direction. Depending on whether the cut sheet is laterally or laterally cut in the finished band of material, the long fibers in the cut sheet are placed in the longitudinal axis of the cut sheet (wide paper) or laterally (narrow paper) relative to the longitudinal axis of the cut sheet. do. When the fiber direction is set in the transverse direction with respect to the longitudinal axis of the wide cutting paper, excellent bendability is exhibited with respect to the horizontal axis, but poor bendability is exhibited with respect to the longitudinal axis. Thus, the restoring force of the lateral bonds is stronger in narrow cuts with completely different aspects due to the altered position of the fibers in the material. On the other hand, the folding case uses more wide cutting paper, because the case's rigidity due to the stability of the cover (sloping closed, easy tearing cover) and excellent resistance in the transverse direction than the wide cutting paper uses narrow cutting paper. And the flatness of the case, i.e., the phenomenon that the central portion of the case is convexly protruded.

In the case of using a groove line rather than a groove, the resilience is remarkably reduced, so that a wide material can be used for the case quickly without any problem, and there is no problem due to the reduction of the surface provided when the case is bonded.

In order to manufacture the groove line, the thickness of the material forming the case must be reduced through the groove cutting knife. To do this, the cutting paper is placed on a smooth base so that the material can not only be pressed but also removed and processed with a grooving knife. Depending on the shape of the grooving knife a cross section, for example V-shaped or U-shaped, is formed. Unlike the groove making method, since the base has a smooth surface instead of a channel on the opposite side of the grooving knife, the thickness does not change as in the groove making method, and the thickness decreases instead of being deformed.

The degree of thickness reduction is determined by the materials used and the corresponding folds. In the groove line of the vertical folds the thickness of the paper or chipboard is reduced by 10 to 80%, preferably 30 to 70%, more preferably 40 to 60% or about 50%, and in the groove line of the horizontal folds, the thickness of the paper or chipboard is reduced. Is reduced by 10 to 50%, preferably 20 to 40% or about 30%.

The groove line is preferred for the second reason for the cut sheet according to the present invention. The advantage of the groove line is that the groove line is present on the inner side of the finished case and the outer side appears to be a complete and unprocessed form and thus provides the user with a refined design, which the home making method cannot provide this advantage.

The number of fold lines and the spacing between the fold lines can determine the degree and shape of the rounding. Preferably there are six to eight, or seven fold lines per fold, with a mutual spacing of about 1 mm. In the folding process, rounded corners are formed in the case, and the radius of the rounded portion coincides with the radius of general cigarettes on the market. Also preferably two fold lines are formed per fold, the mutual spacing of which is between 6 and 8 mm, or 7 mm. In this case, beveled edges appear on the case during folding.

It is also desirable that all folds have the same number of fold lines to form a unified case outline.

In order for the vertical folds and the horizontal folds to fold, it is preferable that the ends of the partial arc and the ends of the S-shaped curve run perpendicular to each other and formed parallel to the edges of the main surface, for this reason a plurality of folds This is because a smooth transition between them is possible.

It is preferable that the partial arc and the S-shaped curves are not joined to each other or only at the corners of the main surface. In principle, it is possible for the partial arc and the S-shaped curve to be at least partially combined, but in this case an irregular surface appears at the transition between the two folds when folding the cut sheet for the case fabrication.

It is also preferred that at least one fold is constrained through a partial arc or S-shaped curve at both ends, and similarly at all folds where both ends meet another fold at approximately right angles, both ends have a partial arc or S-shaped curve. It is desirable to limit the fold through. Finally, it is preferable that all of the folds parallel to each other are blocked by partial arcs or S-shaped curves.

The production of cutting paper is done according to known methods. That is, the cut sheet is cut in a printed wide material track supported on a roller. Generally, a process is carried out in which the cutting paper is processed, stamped and / or cut and optionally press-fitted in the manner described above via a grooving apparatus or grooving knife. A typical folding and gluing process on the side, for example, completes the cigarette case mechanically, which comprises a plurality of cigarettes wrapped in a thin film on the inner side. In addition, generally a collar is used in the hinge lid case according to the present invention. The collar portion slightly protrudes from the inside of the case front wall in the case open state and has a groove portion for easily catching a cigarette in the case.

1 is a cutting paper for manufacturing a hinged lead type cigarette case according to the present invention.

Figure 2 is a detailed view of the Y portion of FIG.

Hereinafter, the present invention will be described in detail through examples.

In the completed case a first main surface 20 corresponding to the front wall of the case part and side surfaces 22 and 24 adjacent to the main surface are shown in the figure. Between the first side surface 22 on the left side and the first main surface 20 and the first main surface 20 and the first side surface 24 on the right side, seven notch lines / scratch lines 100 There is a first vertical folding area 90 and a second vertical folding part 91, which are formed through s and have a quarter circle at the top end.

A bottom portion 30 is connected to an upper end of the first main surface 20, and the bottom portion is connected to the second main surface 40. There is a first horizontal fold 80 between the first main surface 20 and the bottom 30, and a second horizontal fold 82 between the bottom 30 and the second main surface 40. . Similarly, the two horizontal folds 80 and 82 are formed by seven groove lines 100 each representing an S-shaped line at both ends. On both sides of the second main surface 40 forming the back side of the case part in the finished case, the left second side surface 42 and the right second side surface lobe including the left second side surface lobe 46 There is a right second side surface 44 that includes 48. Between them there is a third vertical fold 92 and a fourth vertical fold 93.

In the completed case, the third main surface 50 corresponding to the rear wall of the cover is connected to the second main surface 40. The main surfaces 40 and 50 are separated by folding lines 12 so that the cover of the finished case can be hingedly opened. The third main surface 50 and the left third side surface 56 comprise a left third side surface 52 and a third main including a left third side surface lobe 56 connected to the left third side surface. A fifth vertical fold 94 between a surface 50 and between a third main surface and a left third side surface 54 that includes a right third side surface leaf portion 58 connected to the right third side surface, respectively. ) And a sixth vertical fold 95. The vertical folds 92, 93, 94, 95 are separated from each other through a notch that may extend to or above the fold line 12.

An upper end 60 is connected to an upper end of the third main surface 50, and a fourth main surface 70 is connected to the upper end again. A third horizontal fold 84 exists between the third main surface 50 and the top surface 60, and a fourth horizontal fold 86 between the top surface 60 and the fourth main surface 70. Is present, both sides of the folded portion is formed of seven grooves (100) like the other folded portion.

Around the fourth main surface 70 there is a left fourth side surface 72, a right fourth side surface 74 and a reinforcement 72, between and between the fourth main surface and the left fourth side surface. There is a seventh vertical fold 96 and an eighth vertical fold 97 between the four main surfaces and the right fourth side surface. The reinforcement 72 has only four groove lines 100 due to its slightly smaller size.

The vertical and horizontal folds abut on the corners of the main surface. For example, the vertical folds 90, 91 abut the horizontal fold 80 at the top corners 21, 23 of the main surface. In the embodiment according to FIG. 1 the vertical fold ends on a quadrant that smoothly transitions to each neighboring side surface on the one hand and smoothly to the outer edge of each main surface on the other. The horizontal fold ends on an S-shaped curve that smoothly transitions to the outer edges of each neighboring main surface on the one hand and to the outer edges of the neighboring bottom or top surface on the other hand.

In addition to the groove line 100 of the plurality of folds, there are other fold lines. That is, the fold lines 55 and 45 for folding the side surface lobe, the fold line 12 between the second main surface 40 and the third main surface 50 and the fold line 77 of the reinforcement 72 are exist.

For the manufacture of the cigarette case, the side surfaces 42 and 44 are first folded 90 ° upwards and then the side surface leaf parts 46 and 48 connected to the side surfaces are also folded 90 ° inwards. Then, the lower end of the cutting paper 10 including the bottom part 30 and the first main surface 20 is folded upward by 90 °. This causes the side surface lobes 46 and 48 to contact and adhere to the bottom 30. When the first main surface 20 is folded back to 90 °, the site surfaces 22, 42, 24, 44 can overlap and bond, thus completing the bottom portion of the case. In a similar manner, the cover, which is the upper end of the case, is completed. That is, the side surface lobes 56 and 58 are bonded to the top surface 60. The reinforcement 72 is bonded to the inner fourth main surface 70, and the side surfaces 52, 72, 54, 74 are then bonded to each other. Therefore, the groove line 100 is present on the inner side of the completed case and is not observed by the user from the outside.

As described above, the hinged lid case obtained in the case of folding is formed with a rounded longitudinal edge. Also four horizontal main edges are rounded. At the end of the fold, the partial segment and the S-shaped curve abut, forming a smooth connection between the fold and rounding all eight edges of the case in this way.

The site where the partial arc and the S-shaped curve meet is shown in the detail of FIG. 2. Vertical folds 91, 93 end in partial arcs of about 60 ° to 70 °, and horizontal folds 80, 82 end in S-shaped curves. Partial arcs and S-shaped curves overlap unjoined and meet at corners 23 and 43.

Claims (15)

A cutting paper 10 comprising a collapsible material, comprising two main surfaces 20 and 40 disposed on opposite sides of a rectangular case and a bottom portion 30 connecting the two main surfaces. In the case 10, the main surfaces 20 and 40 disposed in a straight line with each other and in contact with each other in the quadrangular case face the bottom surface 30 connecting the main surfaces 20. Formed through side surfaces 22, 24, 42, 44 connected laterally of 20, 40, the edges of both main surfaces 20, 40, which are disposed opposite in a rectangular case, are formed through the folds. In the cutting paper used for the production of a rectangular cigarette case is sealed at least five sides, The two folds abut each other at the corners of the two main surfaces 20, 40 which are disposed opposite each other in a case formed in a rectangular shape, One of the two folds which are in contact with each other is constrained by a partial arc of 45 degrees to 90 degrees, the other by an S-shaped curve, and the S-shaped curve is connected to the partial arc in the corner direction of the main surfaces 20 and 40. A cutting paper characterized by bending. 2. The cut of claim 1, wherein the folds are formed through two or a plurality of adjacent fold lines that are substantially parallel. A cutting paper according to claim 1 or 2, comprising a first main surface (20) having left and right first side surfaces (22, 24), A bottom portion 30 is connected to the top edge of the first main surface 20, and the second main surface 40 including the left and right second side surfaces 42 and 44 has an upper portion of the bottom portion 30. Connected to the corners, The cutting paper 10 has a horizontal fold and a vertical fold, more specifically, between the first main surface 20 and the bottom 30 and between the bottom 30 and the second main surface 40. With first and second horizontal folds 80, 82, left first side surface 22 and first main surface 20, first main surface 20 and right first side surface 24, left First to fourth vertical folds 90, 91, 92, 93 between the second side surface 42 and the second main surface 40 and between the second main surface 40 and the right second side surface 44. ), The first horizontal fold 80 is in contact with the first and second vertical folds 90, 91 at the top edges 21, 23 of the first main surface 20, And a second horizontal fold (82) abuts each other with the third and fourth vertical folds (92, 93) at the bottom edge (41, 43) of the second main surface (40). 4. The cutting paper according to claim 3, wherein the left and right second side surface leaf portions (46, 48) are connected to the lower edges of the left and right second side surfaces (42, 44). 3. A third main surface (50) according to claim 1, wherein the third main surface (50) comprising the left and right third side surfaces (52, 54) is connected to the top edge of the second main surface (40), the third main surface ( The top edge 60 of the top surface 60 is connected to the top edge of the top surface 60, and the fourth main surface 70 including the left and right side surfaces 72 and 74 is connected to the top edge of the top surface 60. Cutting paper 10 has different horizontal and vertical folds, more specifically a third between the third main surface 50 and the top surface 60 and between the top surface 60 and the fourth main surface 70. And a fourth horizontal fold 84, 86, a left third side surface 52 and a third main surface 50, a third main surface 50 and a right third side surface 54, a left first Fifth to eighth vertical folds 94, 95, 96, 97 between the four side surface 72 and the fourth main surface 70 and between the fourth main surface 70 and the right fourth side surface 74. Has, The third horizontal fold 84 abuts the fifth and sixth vertical folds 94, 95 at the top corners 51, 53 of the third main surface 50, And the fourth horizontal fold (86) abuts the seventh and eighth vertical folds (96, 97) at the bottom corners (71, 73) of the fourth main surface (70). 2. The top and bottom edges of the left and right third side surfaces 52, 54 abut the left and right third side surface lobes 56, 58, and the top edges of the fourth main surface 70. Cutting paper, characterized in that the reinforcing portion 72 abuts. 2. The cutting paper according to claim 1, wherein the collapsible material is a wide cardboard or a wide paper. 2. The cutting paper according to claim 1, wherein the fold line is a groove line (100). According to claim 1, wherein the groove line 100 of the vertical folds is formed of paper or cardboard with a thickness of 10 to 80% reduced, the groove line 100 of the horizontal folds is formed of paper or cardboard with a thickness of 10 to 50% reduced The cutting paper characterized by. 2. The cutting paper according to claim 1, wherein the ends of the partial arc and the ends of the S-shaped curve run perpendicular to each other and are parallel to the edges of the main surface (20, 40, 50, 70). 2. The cutting paper according to claim 1, wherein the ends of the at least one fold are limited by partial arcs or S-shaped curves on both sides. 2. The cutting paper as set forth in claim 1, wherein at all folds at right angles to the other fold at both ends, both ends of the fold are limited by partial arcs or S-shaped curves. 2. The cutting paper according to claim 1, wherein all of the folds parallel to each other are limited by a partial arc or an S-shaped curve, respectively. Case which can be produced by cutting paper (10) according to claim 1. The case can be manufactured by cutting paper according to claim 8 or 9, wherein the groove line 100 is present on the inner side of the case.

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