FI60110B - TOBAKSPAOSE ELLER LIKNANDE EMBALLAGE AV TYPEN VIKT PAOSE - Google Patents

Description

IVrelate [Bl (11) ANNOUNCEMENT - LJ 1 'UTLÄGGN I NGSSKRIFT O U I 1 0 C / 45) y —y? U lr- i: j1

Patent cieddelat '(51) Kv.ik? /Int.ci.3 A 24 F 23/02 SUOMI - FINLAND (2.1) P «* nttlh * k * mu * —P« «nt * n * aknlnj 731196. (22) Hukumtopilvt - Ans6kning * dig 22.0 ^ .75 (23) Alkupilvi — Glfclghuodag 22.0U.75 (41) Tullut Julkltuksl - Bllvlt offumlig 21.10.75

Patent and Registration Office ....... ' . _, (44) Date of issue and other date of publication. -

Patent- oeh registerstyrelsen Antökan utlugd och uti.skriftun pubikurud 31.08.8l (32) (33) (31) Pjrydutty utuolkuus — Bugirtf priorltet 23.0l.7l

Denmark-Danmark (DK) 2208 / 7U

(71) Brdr. Schur International A / S, Englandsvej, 8700 Horsens, Denmark-Danmark (dk) (72) Ole Jensen, Horsens, Erik Keldmann, Jerslev, Leif Sörensen, Horsens,

Erik Woge Nielsen, Horsens, Walther Ostmann, Horsens, Denmark-Danmark (DK) (7U) Oy Borenius & Co Ab (5U) Folding bag-type tobacco bag or other similar coating -Tobakspi.se eller liknar.de emballage av typen vikt pl.se

The invention relates to an aroma-tight sealed package of the fold bag type, e.g. a tobacco bag consisting of a front piece connected to the back piece at the bottom and along the side edges so as to form a flat bag part, the with the top end is folded over the bag portion around the upper fold line and releasably secured to the outside of the bag by adhesive locking members.

Such a bag is usually closed by a strip of self-adhesive tape which protrudes from the central region of the edge of the fold so that this region can be attached to the outside of the bag by means of this adhesive strip when the tobacco bag is folded. Such tobacco bags are usually made by folding along a line slightly below the top edge of the bag section so that the top of the front side of the bag section together with the corresponding part of its back side is folded over the front side of the bag section, so that the foldable strip , and the length of this foldable part is such that, after folding, this part extends past the lower edge of the bag part and is thus folded up again around this lower edge and fastened to the back side of the bag part by means of said adhesive strip.

In particular, in connection with the first-mentioned fold of the top of the bag part, the front and back sides of the bag part are made somewhat compressed along the fold line so that the tobacco cannot fall out of the folded package. However, there is no question of an aroma-tight sealing of the coating, although such a tight sealing would be advantageous at least during the time between filling and sealing the tobacco package until it is sold.

The object of the invention is to provide a tobacco bag of said type which, in connection with its factory manufacture, can be closed mainly in a flavor-tight manner, and which is still easy to open.

This is achieved according to the invention in that the adhesive locking members preferably have a 1 to 2 wide adhesive coating extending across the outer side of the bag part from edge to edge so as to extend substantially symmetrically both upwards and downwards from the edge defined by the lowered top of the front piece. an edge pressing against the corresponding outer part. Thanks to this arrangement, the mouth of the bag part will be closed by an adhesive placed on the outside of the bag at a distance from the mouth itself, the edge area above the front side of the bag part being glued to the other half of the becomes glued to the other half of the adhesive coating so that the mouth of the bag remains closed over the entire width of the bag. The bag can be easily opened by pulling off the area of the mouth opening against the adhesive coating, after which the bag is opened. When the bag is opened, whereby the tobacco is taken from its mouth, the adhesive coating will be spaced from the mouth so that it is not easily adhered to by tobacco chips, which would weaken its adhesive effect to the outside.

The invention will be explained in more detail below on the basis of the accompanying drawings.

Figure 1 shows a perspective view of an empty tobacco bag according to the invention unfolded.

3 60110

Figure 2 shows a cross-section of the bag when the bag is filled and closed.

Figure 3 is a top plan view of a modified embodiment of a tobacco bag.

Figure 4 shows a perspective view of the same bag filled and closed.

Figures 5 and 6 show yet another embodiment in a manner similar to Figures 3 and 4.

The tobacco bag shown in Fig. 1 is conventionally made of a foil strip, the lower part of which is folded along the base line 4, and the side edges of which are welded to the edges of the strip so as to form a bag part 6 with an extension 8 protruding from the back and a bag top. 12. The foil strip may optionally also be a double strip with a paper strip interposed between the layers in a manner known per se. The purpose of the extension, i.e. the foldable part, is primarily to facilitate the removal of tobacco from the tobacco bag, in which case there is no bag closing flap, since the bag is generally folded along a transverse line 16 located slightly below the top 10 of the bag. Most prior art tobacco pouches have an extension 8 considerably longer than shown in Figure 1 so that after folding around line 16 it can be folded up again around baseline 4 to secure its outer end to the back of the bag by a piece of adhesive strip positioned to protrude from the top or outer edge of the extension. in the middle as shown in broken lines in Figure 2.

The elongation 8 of the bag shown is thus shorter than normal because it is only so long that, after folding along line 16, it extends to the bottom 4 of the bag, as best seen in Figure 2. Along the transverse area of the front side 14 of the bag into which the top edge then extends. when folded along line 16, a strip 18 of pressure sensitive adhesive is placed in the material on the front of the bag. This coating strip extends up to the welding lines 20 which form the edges of the bag, and the width of the strip is relatively large, e.g., on the order of 1 to 2 cm, when the width of the pre-folded package is about 7 cm (Figure 2).

The fold line 16 is either marked on the package or formed as a natural permanent fold line already when the bag is closed, whereby said insertable paper strip forms a permanent fold along this line or an area thereof, and the adhesive coating 18 is arranged so that the free edge 12 of the bag after folding is located precisely along the center line of the adhesive coating.

Thus, when the area near the edge 12 of the bag is pressed against the front of the bag after folding, the upper edge of the front of the bag immediately below the edge 12 (with the bag folded above this edge) is glued to the top half of the coating strip 18. below this edge) will adhere to the lower half of the coating strip 18. The mouth opening 10 of the bag then becomes tightly closed, as shown in Fig. 2.

To open the bag, the extension 8 only has to be pulled outwards, whereby the adhering areas are detached from the adhesive coating without the adhesive accompanying. Traction is then transmitted to the edge region 12 of the bag part via the side edges of the bag layers welded in this region. It is noted that once the bag is opened, the adhesive coating 18 must be spaced from the mouth of the bag, so that the adhesive is not normally exposed to tobacco chips, which, if partially covering the adhesive coating, could reduce its ability to keep the bag mouth closed when the bag is resealed.

Precisely because the bag becomes closed over its entire width, it is usually not necessary to make the extension 8 longer than shown, since folding this part once again does not substantially contribute to a better closure of the bag, i.e. in contrast to previously known bags. Thus, thanks to the bag according to the invention, material can be saved.

In the embodiment shown in Figures 3 and 4, the adhesive coating is positioned closer to the top edge 12 of the bag than in Figures 1 and 2, while in the embodiment shown in Figures 5 and 6, the adhesive coating is positioned farther from this edge 12.

Within the scope of the invention, the folding line 4 · can be replaced by an opening between the layers of the bag, whereby the tobacco bag can already be folded into the correct closed space in the coating factory.

The tobacco can then be filled in the tobacco factory from said bottom opening, which is then closed by simple welding. Similarly, the bag can be filled at the open side edge, after which the bag is closed by welding.

Although the main object of the invention is a tobacco wrapper, it is not limited to this, as the described bag can possibly be used for other purposes as well. In some cases, the extension, i.e. the foldable part 8, can be considerably shortened if it does not as such have a substantial function, e.g. as shown in Fig. 3 (a). However, the top edge of this foldable part must not be closer to the top edge 12 of the bag than the width of the adhesive coating 18, since in this case either the sealing of the bag opening or the free non-adhesive outer end of this part 8 must be dispensed with, making it difficult to open the bag.

It should be emphasized that the term "adhesive coating" is to be understood broadly as an area having the property of releasably holding said edge portions at the mouth of the bag together so that adhesion occurs between the treated area and said edge areas. It does not matter to the invention how this gripping area is provided, nor is this area necessarily provided by a special material coating placed on top of the bag material. Thus, the bag material itself can be made in such a way that the material has been modified in a certain way in this region so that adhesion occurs in the region, which, however, can also be provided magnetically or electrostatically or in some other way. In addition, it is to be understood that the gripping area need not be a clearly demarcated area between two parallel lines.

Claims (4)

6 60110 When using a pressure-sensitive adhesive which remains adhesive and which can thus be used to close the bag repeatedly, the adhesive must, of course, be applied in such a way that it remains attached to the side 1 * 4 of the bag. This can be achieved in a manner known per se, in particular by treating either the area of the foil in which the adhesive must adhere or the area or areas from which the adhesive must be removed. However, it is essential for the invention that the bag can be sealed after filling and that the bag remains tight at least until it is first opened. Fater.ttlvat suction cups An aroma-tight sealed package of the fold bag type, e.g. a tobacco bag, consisting of a front piece connected to the back piece at the bottom and along the side edge so as to form a flat bag part, the back piece being extended at its upper end so as to form a foldable part 8 , which together with the upper end of the front piece (1 * 4) is folded over the bag part around the upper fold line (16) and releasably fastened to the outside of the bag by means of adhesive locking members, characterized in that the adhesive locking members preferably have a 1 to 2 cm wide adhesive coating (18), extending across the outer side of the bag part from edge to edge so as to extend substantially symmetrically both upwards and downwards from the edge line defined by the edge (12) pressing into the corresponding outer part of the down-folded upper end of the front body (1 * 4). A package according to claim 1, characterized in that the adhesive area (18) is arranged below the fold line (16) of the front piece (1 * 4) of the bag part (6) at a distance therefrom. 1. Aromtätt tillsluten förpackning av typen sammanvikt päse, t.ex. tobakspung, bestäende av ett framstycke som nedtill oc längs sido-kanterna är förbundet med ett bakstycke sä att det bildas en flat passdel, varvid bakstycket är förlängt upptill sa att bildas en pävikbar del (8) som tillsammans med den övre delen av 1 * 4) is not allowed to enter the field of operation (16) and in the middle