JP2009298482A - Sealing packet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing packet which can be formed of a flat blank divided into a plurality of panels by fold lines and a plurality of coupling flaps extending from the plurality of panels for cigarettes as a typical example. <P>SOLUTION: The flaps coupled to at least two continuous panels of the blank are partially separated from each other by a V-shaped notch so that they are coupled to each other at the distal end of the notch along a part having a predetermined length. The blank has at least one face. At least part of the face is coated with a heat-sealable material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sealed packet for cigarettes, for example.

  As a prior art, there is a sealed cigarette packet with a generally parallelepiped appearance formed of a soft thermoplastic material that is heat-sealable and highly impermeable to air and moisture.

  Such a packet is manufactured on a cigarette packer (packer) using rectangular outline leaves and employing a known method which will be briefly described next.

  First, each sheet is wrapped around a group of cigarettes arranged side-to-side to form a tubular sheath aligned on an axis parallel to the axis of the cigarette.

  This first step follows a series of folding steps. In the folding step, the protruding two ends of the tubular sheath are flattened against the opposed end surfaces of the cigarette group.

  One side of the folded wrapper is then engaged with the sealing means to enable longitudinal closure, and then the opposite end face is similarly closed to completely close the packet. Sealed.

  The formed packet consists of multiple layers of polymer material welded together on the relatively large areas of the corresponding surface of the various wrappings of the wrapping paper, thus forming a secure hermetic seal To do.

  The finished wrapping paper usually has a conventional type of tear ribbon provided on the inside near one of the end faces, the tear ribbon has a pull tab and is designed to facilitate the operation of tearing the packet open. The

  Compared to traditionally designed soft packets, these types of packs have not only a sealing advantage, but also a single wrap rather than a metal foil paper inner wrap and a paper material outer wrap. When configured, it is cost-effective.

  As another example of a packet according to the prior art, the above-described hermetic pack is formed from a general type of flat blank that is divided from a fold line into a plurality of panels and side flaps, and is three-dimensionalized through a series of folding processes into a packet. It is inserted into a rigid packet that is formed, for example of the type with a hinged lid.

  This solution is clearly not advantageous in economic terms over the previously described packets.

  In addition, for reasons of strength and visual quality, diecut blanks with rigid or semi-rigid cardboard that are optimal for producing cigarette packets require packets with a hermetic seal. Furthermore, it is not suitable for use as a single wrapping element.

  Traditionally, in practice, packets formed from rigid die-cut blanks of the type described above have critical points, particularly at the edges of the corner edges that define the lower and upper surfaces, from which air and moisture enter. Such critical points are met by simply applying the panel edges and flaps at right angles to each other without applying adhesive.

There is no special mention

  It is an object of the present invention to provide a cigarette packet formed from a cardboard or paperboard blank and having a hermetic seal that can be produced more economically than conventional types of packets that use die cut blanks of the aforementioned materials.

  The problem is solved by a cigarette packet according to the invention as claimed.

  Specifically, the present invention provides a sealed packet for cigarettes as a representative example that can be formed from a flat blank divided into a plurality of panels and a plurality of connecting flaps extending from the panels by crease lines. In the sealed packet according to the present invention, the flaps connected to the at least two continuous panels of the blank are partially mutually connected by the notches so that they are connected to each other along a predetermined length portion at the tips of the notches. And the blank has at least one side covered at least in part by a heat-sealable material.

  Preferably, the sealed packet according to the present invention has a long axis of the blank by two longitudinal crease lines parallel to the long axis of the blank and a plurality of crease lines provided in a direction crossing the long axis of the blank. Formed of a substantially rectangular blank divided into a plurality of panels aligned along the same, each panel extending from opposite ends of the panel and arranged symmetrically with respect to the long axis of the blank Connected with one flap and each flap is connected to the flap of the adjacent panel outside the longitudinal crease line relative to the long axis of the blank.

  Preferably, the notch is V-shaped, and the tip of the notch is located at a predetermined distance from the crease line outside the crease line in the longitudinal direction with respect to the long axis of the blank.

  Preferably, the blank has a U-shaped perforation or notch so as to form an opening that allows removal of a cigarette or the like from the packet.

  Preferably, the blank is formed of cardboard or paperboard.

  Preferably, at least one side of the blank is coated with a heat-sealable material at least above and around the area where the flaps connected to the two continuous panels are joined together.

It is a perspective view in the closed position of the cigarette packet by this invention. It is a perspective view in the open position of the cigarette packet by this invention. FIG. 3 is a plan view of a blank forming the cigarette packet of FIGS. 1 and 2. FIG. 2 shows an enlarged detail view of FIG. 1. FIG. 4 shows an enlarged detail view of FIG. 3.

  Referring to FIGS. 1 and 2, reference numeral 1 indicates the entire packet, and packet 1 includes a cigarette S that is juxtaposed side-to-side and parallel to the long axis A of packet 1.

  The packet 1 made of cardboard or paperboard has a substantially parallelepipedal appearance, is formed in a rectangular cross section with four side walls, and more precisely is parallel to the front wall 2 and the front wall 2. It has a rear wall or back surface 3 formed, two side walls or flanks 4 and 5, an upper wall or top surface 6, and a lower wall or bottom surface 7.

  The top of the packet 1 has a substantially U-shaped perforation line or notch 8, a curved central portion 9 occupying the front wall 2, and the front wall 2, top surface 6 from the opposite end of the curved central portion 9. , And two parallel portions 10 across the top of the back surface 3.

  The free ends of the two parallel portions 10 are located on the back surface 3 and are curved toward each other so as to form a curl 11 (see FIG. 3).

  A U-shaped perforation line 8 defines a closure or tongue 12 and corresponds to an opening 13 for removing the cigarette S from the packet. During use of the packet 1, the tongue 12 is held in the closed position by interengagement of matching edges along the perforation line 8 or by employing other means of conventional type (not shown).

  Referring to FIG. 3, the packet 1 is formed from a flat and substantially rectangular die-cut blank of cardboard or paperboard, indicated generally by the reference numeral 16.

  The predetermined components of the blank 16 are indicated by the same reference numbers used for the corresponding parts of the packet 1.

  The blank 16 will be described with reference to the major axis A ′, and has at least one surface that provides the outer surface of the packet 1 and is at least partially coated with an impermeable and heat-sealable material. Two longitudinal crease lines 17 and 18 are symmetrically carved on both sides, and four crease lines 19, 20, 21, and 22 are formed in a direction across the major axis from the top surface to the bottom surface.

  The blank 16 is divided into five panels 7 ′, 2 ′, 6 ′, 3 ′, and 23 aligned on the long axis A ′ by the above-described longitudinal and transverse crease lines. Each panel has a side flap at the opposite end. More precisely, each side flap is separated by a substantially V-shaped notch from adjacent side flaps on both sides of the blank, with the notch tip pointing towards the long axis A '.

  The four panels 7 ′, 2 ′, 6 ′, 3 ′ respectively correspond to the bottom surface 7, the front wall 2, the top surface 6 and the back surface 3 of the panel.

  The fifth panel 23 is connected to the adjacent panel 3 along the crease line 22 in the transverse direction, and provides an element that connects the back surface 3 and the bottom surface 7 when the packet stands.

  The flap 25 connected to the panel 2 ′ is overlapped and joined to the flap 26 connected to the panel 3 ′ and joined to provide the two flanks 4 and 5 of the packet 1.

  Two flaps 27 connected to the panel 6 'provide an element connecting the top surface 6 to the flanks 4 and 5.

  Two flaps 28 connected to the panel 7 ′ and two flaps 29 connected to the panel 23 provide elements that connect the bottom surface 7 to the flanks 4 and 5.

  The blank 16 has a U-shaped perforation line 8 ′ that rotates in the central region and rotates upward to form the closing tongue 12 described above.

  The tip of the notch 24 that separates adjacent side flaps differs from a similar notch provided by a conventionally designed blank and folds with respect to the major axis A ′ without intersecting the longitudinal crease lines 17 and 18. It is positioned a predetermined distance D outward from the lines 17 and 18 (see in particular FIG. 5). Blank 16 is at least partially coated with a heat sealable material, and this coating is applied to the area around the tip of notch 24.

  In particular, referring to FIGS. 4 and 5, as will be appreciated, due to the special shape employed in the blank 16, the movement of the folding means utilized in the cigarette packer will cause the longitudinal corner edges and length of the packet 1 to Folds (pinched folds) are formed with the wrapping material sandwiched at the points where the transverse corner edges meet each other.

  When the heat-sealable material layer is melted through the medium of the heat-sealing means in and around the sandwiched fold formed at the point where the corner edges of the packet 1 converge, the resulting air due to the sealing of the packet 1 A sealant plug 30 is formed that ensures tightness and moisture tightness.

  Therefore, according to the present invention, a flat blank made of cardboard or paperboard can be formed into a packet holding any kind of product, particularly a cigarette, which is clearly cost-effective compared to conventional packet examples. To provide a sealed package that can eventually be used as a wrapping paper.

1 packet 16 blank 24 notch

Claims (6)

A plurality of panels (7 ′, 2 ′, 6 ′, 3 ′, 23) and a plurality of connecting flaps (28, 25, 27, 26, 29) extending from the panels are formed by crease lines (17, 18). In a sealed packet, typically for cigarettes, which can be formed from a divided flat blank (16),
The flaps connected to at least two continuous panels of the blank (16) are connected by a notch (24) so that they are connected to each other along a predetermined distance (D) at the tip of the notch (24). A sealed packet, characterized in that it is partly separated from each other and the blank has at least one side that is at least partially covered by a heat-sealable material. Two longitudinal crease lines (17, 18) parallel to the long axis (A ') of the blank (16) and a plurality of crease lines provided in a direction crossing the long axis (A') of the blank (16) (19, 20, 21, 22), the substance divided into a plurality of panels (7 ′, 2 ′, 6 ′, 3 ′, 23) aligned along the long axis (A ′) of the blank (16). Formed from a rectangular blank (16),
The panels (7 ′, 2 ′, 6 ′, 3 ′, 23) are each extended from the opposite end of the panel and symmetrically arranged with respect to the long axis (A ′) of the blank (16). Connected with two flaps (28, 25, 27, 26, 29) and each flap is outside the longitudinal fold line (17, 18) with respect to the long axis (A ') of the blank (16). The sealed packet of claim 1 connected to a flap of an adjacent panel.   The notch (24) is V-shaped, and the front end of the notch (24) folds outward from the longitudinal crease line (17, 18) with respect to the long axis (A ') of the blank (16). 3. The sealed packet according to claim 1 or 2, wherein the sealed packet is located at a predetermined distance (D) from the line (17, 18).   4. The blank (16) according to any of claims 1 to 3, wherein the blank (16) has a U-shaped perforation or notch (8) so as to form an opening (13) that allows removal of cigarettes and the like from the packet. Or one sealed packet.   The sealed packet according to any one of claims 1 to 4, wherein the blank (16) is formed of cardboard or paperboard.   6. The blank according to claim 1, wherein at least one side of the blank (16) is covered with a heat-sealable material at least above and around the area joining the flaps connected to two continuous panels. One sealed packet.

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