WO2013189509A1

WO2013189509A1 - Arrangement comprising sachets made of composite material

Info

Publication number: WO2013189509A1
Application number: PCT/EP2012/002643
Authority: WO
Inventors: Elisabeth Buchbinder; Axel NIEMÖLLER
Original assignee: Sihl Gmbh
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2013-12-27
Also published as: EP2864214A1

Abstract

The invention concerns an arrangement for the disposal of cigarette or cigarillo ends in the form of easily opened sachets (3) and a composite material suitable for the production thereof.

Description

Arrangement with sachets made of composite material

The invention relates to an arrangement for disposing of cigarette or

Zigarillostummeln in the form of deployable bag and a suitable for its production composite material.

An arrangement for supplying cigarette and cigarillo butts is known from WO 2009/043072 A1. This known arrangement for receiving cigarette or Zigarillostummeln and possibly also of cigarette or cigarillo ash comprises a strip with at least two longitudinal perforations and tear-off separable together bag. The strip of the known arrangement can be rolled up or folded in a cigarette or cigarillo pack. This known arrangement has proven itself well, but it may be problematic to open a detached from the arrangement sacks, so that the cigarette or

Cigarillo butts or cigarette or cigarillo ash can be added.

The invention has for its object to provide an arrangement of the type mentioned available, the bag can be easily opened in use and then securely closed again.

This object is achieved according to the invention with an arrangement having the features of claim 1.

Preferred and advantageous embodiments of the invention are the subject of

Dependent claims. Thanks to the inventive design of the arrangement, in particular the bag, it is sufficient to apply to open a bag on this pressure in such a way that its longitudinal edges, in particular in the region of the opening, are approached to each other, whereupon the bag opens and its mouth for filling of ashes or stubs is ready. This opening is achieved, for example, by holding the bag between two fingers of one hand and pressing it together to approximate the lateral longitudinal edges of the bag.

As a material for the bags, a multilayer composite has proven itself. Thus, the bags can be made of composite material which has outer layers of paper and intermediate layers of metal and / or plastic. A particularly preferred composite material in the form of a laminate is described in more detail below.

CONFIRMATION COPY Further details and features of the invention will become apparent from the following description, the preferred embodiments and with reference to the drawings. It shows

1 shows a detail of an inventive arrangement in view,

Fig. 2 is a section along the line II-II of Fig. 1 and

Fig. 3 shows a band from which the arrangement according to the invention can be produced. The arrangement according to the invention is a strip 1 comprising a plurality of, in particular at least two bags 3.

Perforations 5 and 7 are provided between the sacks 3, of which preferably two are always arranged in pairs, so that one of the sacks 3 can be separated from the strip 1 if necessary. Each bag 3 is open at one end and closed at the other end by a bond 9.

The strip 1 of the arrangement according to the invention, which thus comprises at least two bags 3, can be made from a strip 11, which, as shown in Fig. 3, provided with fold lines 13 and 15 and then folded so that the in Fig. 2 fold shown in cross section results. In particular, symmetrically arranged in the belt 11 to its longitudinal center line 23 fold lines 13 and 13 ', the outer edges 25 and 25' form in the strip 1 of the arrangement, and fold lines 15 and 15 'are provided, which in the finished arrangement in the region of the longitudinal center the arrangement lying inner edges 27 and 27 'result. When manufacturing the strip 1 of the inventive arrangement from a strip 11, this is provided, for example, with fold lines 13, 13 ', 15 and 15' according to FIG. 3 and then folded so that an arrangement which is shown in cross section in FIG , results. To the inventive arrangement

The parts 17 (edge strips) of the strip 11 folded down along the strip 11 according to FIG. 3 outer folding lines 15 and 15 'are glued onto the central region 21 of the strip 11 (gluing 31) and additionally opposite the open side of the bags 3 Ends closed by transversely to the longitudinal extent of the strip 1 according to FIG. 1 extending splices 9.

In order to facilitate the opening of the bag, reinforcements may be present or attached in the region of the fold lines 13 and 13 'and / or 15 and 15'. These

Reinforcements may be in the form of additionally applied strips of material each

Individual sachets or in the form of a partial, in the region of the respective fold line (s) present thickening of the material from which the bags are made present. These reinforcements provide this as an additional spreading aid for every single bag.

After the strip 1 has been produced in this way, the perforations 5 and 7 delimiting the individual bags 3, ie perforations 5 extending transversely to the arrangement, and a perforation 7 extending in the longitudinal direction are introduced, if they have not already been arranged in the strip 11 according to FIG Fig. 3 have been produced.

In practice it can be provided according to the invention that arrangements comprising three pairs of bags 3 (in total six bags) are separated and after folding around the transverse perforations 5

(Leporellofaltung) to form a space-saving and usable in a cigarette pack group of (six) bag 3. When a cigarette or cigarillo is finished smoked and its stub is to be stored (disposed of), a bag 3 is separated from the strip 1, which for example comprises (initially) six bags 3 as mentioned above, passing along the perforations 5 and 7 is torn from the strip 1. Now, the sacking 3 is taken between two fingers (one hand) so that it can exert pressure on the longitudinal edges of the sack 3 which approximates the longitudinal edges. By this compression of the bag 3, this will open at its opposite of the gluing 9 (open) end, so that in the bag 3, the stub and possibly even before ash can be filled. This advantageous opening arises because a longitudinal edge 25 of the bag 3 is formed by a simple folding and the other longitudinal edge 27 of the bag 3 by folding the outer edge strip 1 and its bonding 31 with the remaining part 21 of the belt 11.

As a material or material for the band 1, from which the arrangement according to the invention (strip 1) is made, basically any flexible material is conceivable, which is intended in particular to paper composites. Particularly preferred are paper-metal-plastic composites of paper and a coating, wherein the coating may consist of plastic or metal.

An example of a composite material that can be used in the context of the invention has the following structure: paper or nonwoven metal foil - plastic film - paper or nonwoven. A particularly preferred embodiment of the composite material is paper-aluminum foil-plastic film paper. This material has the advantage of being a quick one Damping the embers, good heat dissipation and a sufficient

Having odor diffusion resistance.

A particularly suitable and therefore preferred composite material consists of a composite material (laminate) of paper or nonwoven / plastic film / metal foil / paper or nonwoven. This composite can be produced by various bonding techniques. As a rule, there is a thin layer of adhesive between the individual layers, which bonds the materials together so tightly that a separation under

Conditions of use is very difficult. In particular, the composite is designed so that it does not delaminate even in damp or wet and does not break even under mechanical action. In particular, it has a high tensile strength at low thickness and a high density against smoke, eg not completely deleted cigarette stubs. Suitable adhesives are laminating adhesives which are applied in a laminating process in a layer thickness of between 0.3 and 20 g / m ² , preferably 1 g / m ² to 8 g / m ^2, per bond line. The adhesives can contain (organic) solvents, be solvent-free or aqueous, or be a so-called hotmelt adhesive and applied by means of customary application methods to at least one of the surfaces of the at least four composite components. Overall, preferably at least two adhesive jobs are necessary to a quadruple composite with two outboard

Produce paper layers. Metal foil and plastic film are preferably joined together in a Trockenkaschierverfahren. Alternatively, the plastic film can be applied by extrusion directly to the metal foil. It is also possible to glue or extrude plastic films on both surfaces of the metal foil. This then leads to a 5-fold composite material with the two paper layers. Furthermore, it is also possible to laminate a plastic film with 2-metal foils.

The order of the laminating processes is irrelevant in the production of the composite material, preferably the plastic film is first laminated with the metal foil and then the two paper layers, if necessary applied simultaneously. For coating and

Lamination, standard roll-to-roll coating techniques are used.

Glue

The laminating adhesives used between the individual layers can be based on a hot-melt adhesive, a solvent-based or dispersion-based adhesive, eg Acrylate base, or a 1- or 2-component adhesive, based for example on polyurethane. For the bonding of the two paper outer sides, it is also possible, for example, to use a wet laminating method, for example as described in EP 1762380A1. In order to obtain sufficient bond strength, it is advantageous if the adhesive used is subjected to a crosslinking reaction after coating. This can be done, for example, by UV or electron beam curing or by adding crosslinkers such as isocyanates, epoxy compounds, aziridines, etc. Also a

self-crosslinking plastic, e.g. Self-crosslinking acrylate polymers can be used for this purpose.

Plastic film

Suitable plastic films may consist of: polyolefins, e.g. polyethylene,

Polypropylene, or polyester, e.g. Polyethylene terephthalate, or polyurethanes,

Polyacrylate, polycarbonate, polyvinyl chloride or polyamide, cellulose acetate or biodegradable film e.g. based on starch or polyhydroxy acid, e.g. Polylactic acid, and may be unoriented, uniaxially oriented or biaxially oriented, with uniaxial or biaxial orientation being preferred. Examples are PET films with the brand names Mylar® and Melinex® (biaxially oriented polyester films from DuPont), Valeron® polyethylene films from VanLeer, cast polypropylene films, monoaxially oriented polypropylene films or biaxially oriented polypropylene films (BOPP films). , Particularly preferred films are selected from polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) or polylactic acid (PLA).

The thickness of the films is suitably in the range from 3 pm to 100 pm, preferably from 4 to 60 pm, more preferably in the range from 5 to 50 pm, for example in the range from 6, 7 or 8 pm to 48, 45 or 42 pm and especially preferably in the range of 9 pm to 40 pm. Thinner films do not impart sufficient mechanical stability to the product produced, and film thicknesses of less than 3 μm are therefore not preferred, unless the metallic film in the laminating composite is chosen in a thickness which ensures stability on its own. At thicknesses greater than 100 μm, the composite material becomes too stiff and causes problems in folding, insertion into the cigarette box and in use.

Paper or non-woven outer layers

The paper or non-woven outer layers can be made of paper, kraft paper, wet-strength paper, fiber-reinforced paper, impregnated paper, eg flame-retardant Paper, cigarette paper, thin paper, bible printing paper, coated or coated paper, tracing paper, woven or non-woven fleece of eg cotton, polyester, polyethylene or polyamide. There are no restrictions on the material selection of the paper or non-woven outer layers of the composite. The flexible paper or nonwoven layers preferably have a basis weight of 10 g / m ² to 70 g / m ² , particularly preferably 15-30 g / m ² .

Suitable composite materials thus represent the following combinations: paper - metal foil-plastic film paper or paper-metal foil-plastic film non-woven or non-woven - metal foil-plastic film paper or non-woven metal foil-plastic film nonwoven. In addition, between the first paper or nonwoven layer of a page another metal or plastic film may be incorporated, so that a structure paper or nonwoven - plastic film - metal foil - plastic film - paper or non-woven results, or a construction paper or nonwoven - metal foil - plastic film - Metal foil - paper or fleece.

The outer surfaces of the composite material according to the invention can be printed to e.g. To give instructions for use or to advertise on these surfaces. A particular embodiment is the use of recyclable and / or compostable components. For this purpose, a targeted selection of raw materials can be made in order to make the entire network environmentally friendly. In particular, the plastic film and the adhesives used can be selected so that environmentally friendly cigarette bags that can be disposed of with household waste or bio-waste without problems. Preferably, a degradable film, e.g. polylactic acid (PLA), and degradable adhesives, e.g. based on starch.

metal foil

As metal foils, it is possible to use all conductive foils which have a specific thermal conductivity of more than 50 W / m.sup.- ¹ K, preferably above 100 W / m.sup.2 K. These are metal foils having a preferred minimum thickness of 1 pm of metals such as zinc, copper, lead, tin, aluminum and alloys, with aluminum foil being particularly preferred. The films preferably have a thickness of from 2 to 25 μm, more preferably from 3 to 20 μm, for example from 4, 5 or 6 μm to 18, 16 or 14 μm, and particularly preferably in the range from 7 to 12 μm. The composite material according to the invention has a good tear strength and a good breaking load with at the same time low thickness and good rigidity. The intrinsic strength according to ASTM-D1004 is at least 15 N, preferably at least 20 N and at most 60 N, the breaking load according to IS01924 is typically between 40 N / 15 mm and 300 N / 15 mm. With biaxially oriented foils one achieves a high tear strength and a high breaking load. The on-road resistance is rather low. In the case of uniaxially oriented films, this is achieved only in the transverse direction to the orientation of the polymer chains in the film. Non-oriented films have a good resistance to transverse stress in transverse and

Longitudinal direction to the film web. The stiffness, measured in accordance with IS02493 (15 ° C / 10mm) is preferably in the important for the easy opening mechanism transverse direction between 30 and 80 mN, more preferably between 40 and 70mN. With triple-bonded with the material composition paper-film paper comparable technical properties can be achieved, however, are when using the 4-fold composite according to the invention with the inner metal foil the

Restoring forces less so that the bag remains easily opened after pressing with two fingers.

The composite material according to the invention is particularly suitable for the production of small bags for storing cigarette stubs. The metal foil used ensures good heat dissipation over a larger area that incorporated

Plastic film reinforces the bond and increases the tear resistance, the two

Paper or non-woven outer layers increase the rigidity so that the small bags can easily be set up with one hand after being torn off. The safe closing is due to good rigidity and low restoring forces this

To achieve material composite.

Examples: Example 1: Exemplary embodiment of the bag according to the invention:

An arrangement with a strip 1, comprising a plurality, in particular six sachets 3, for receiving cigarette or cigarillo butts and possibly cigarette or cigarillo ash, consists of a multiply folded band 11, one of which

Longitudinal edges 25 of the bag 3 by a simple folding and the other longitudinal edge 27 of the bag 3 by a narrow, folded-edge strip 17 which on the remaining part 21 of the strip is glued, is formed. The bags 3 may be separable from the assembly by tearing, the tearing may be prepared by perforations 5, 7. Thanks to the formation of the longitudinal edges 25, 27 is at

Squeezing the bag 3 so that its longitudinal edges are approximated to each other, the bag 3 reliably and safely opened at its, the sealed by gluing 9 end end opposite.

Example 2. Particularly Suitable Composites: Experiments were conducted with various composite combinations:

Comparative Example:

A material consisting of a 28g paper / a 25pm aluminum vaporized OPP film / a 28g paper, is processed into cigarette bags. The 3-fold composite material is printed, glued and punched to unfoldable

To get cigarette bag.

The rigidity of the material thus produced is based on IS02493

(15 ° C / 10mm) determined: The material of the composite is with values of about 140mN along and about 60mN across the stiffness enough to produce a cigarette bag that can be pressed with 2 fingers. However, the prevent

Restoring forces of the OPP film that the bag pouch without pressure on

opposite outer edges remains open. In addition, after introducing a still burning cigarette butt, the residual heat of the cigarette on the outside of the bag leads to a local overheating and can thus lead to skin burns.

Example of a composite material according to the invention:

An 8 μm thick aluminum foil is coated by means of a solvent-containing 2-component polyurethane adhesive, the coating is dried and a 12 μm thick polyester film is laminated to the still tacky coating. The adhesive application is 3 g / m ² (dry). In a second laminating process, this composite material is first pretreated on the polyester side by means of a corona discharge and then coated on both sides with an acrylate-based wet laminating adhesive. On each side a 24 g cigarette paper is laminated. The entire composite is then dried. The stiffness of the material in accordance with IS02493 (15 ° C / 10mm) is about 120 mN in the longitudinal direction and 50cN in the transverse direction. The tear strength according to ASTM 1004 is approximately 24N in the longitudinal direction and 26N in the transverse direction. The restoring forces are low due to the additionally installed aluminum foil.

The 4-fold composite material is printed, glued and punched to unfoldable

To get cigarette bag. The pouch can be placed between two fingers by simple pressure and remains open without further external pressure. When filling a burning cigarette butt in this bag and after

Closing the bag by squeezing the opening extinguishes the embers immediately, the heat is dissipated so well that there is no risk of burning or ignition. The cigarettes are safely packaged and can be disposed of with the bag at a later date.

Claims

Claims:

1. Arrangement for disposing of cigarette or Zigarillostummeln with a strip (1) with two or more than two mutually joined bags (3), characterized

characterized in that each bag (3) has a longitudinal edge (25) formed by simply folding a sheet material (11) and that the other longitudinal edge (27) of the bag (3) is folded over by a fold (13)

Edge region (17) is formed, which is connected to the sheet material in a partial area (21) and the bags consist of a composite material with the layers of paper or non-woven metal foil-plastic film paper or non-woven.

2. Arrangement according to claim 1, characterized in that the bent

Edge region (17) is glued to the sheet material (11).

3. Arrangement according to claim 1 or 2, characterized in that the open side of the bag (3) opposite end by a bond (9)

is closed.

4. Arrangement according to one of claims 1 to 3, characterized in that in the strip (1) in each case two longitudinal edges (25, 27) adjacent bags (3) are provided, preferably between the juxtaposed bags (3) has a perforation (7) is provided.

5. Arrangement according to one of claims 1 to 4, characterized in that juxtaposed bags (3) are formed by folding the strip (11) of sheet material.

6. Arrangement according to one of claims 1 to 5, characterized in that the strip (1) has three pairs of with their longitudinal edges (27) adjacent bags (3) and that the strip (1) zigzag-like (Leporello- Folding) is folded.

7. Arrangement according to claim 6, characterized in that the strip (1) is folded transversely to its longitudinal center line.

8. Arrangement according to claim 7, characterized in that the folds coincide with transversely to the longitudinal direction of the strip (1) aligned perforations (5).

9. Composite material of paper or non-woven / metal foil / plastic film / paper or non-woven.

10. A composite material according to claim 9, wherein at least one of the following features is met: the paper or the nonwoven in each case has a basis weight in the range of 10 g / m ² to 70 g / m ² , the metal foil selected from zinc, Copper, lead, tin, aluminum and alloys have a thickness of at least 1 μιη and / or the plastic film has a thickness of 3 to 100μπι on.

11. The composite material according to claim 9 or 10, wherein the plastic film is selected from polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) or

Polylactic acid (PLA) and preferably uniaxially or biaxially stretched and / or the metal foil is an aluminum foil.

12. A composite material according to any one of claims 9 to 11, prepared by laminating the webs of paper or non-woven, metal foil and plastic film by means of an adhesive, wherein at least two of these webs are glued together.

13. The composite material according to claim 12, wherein the adhesive is selected from the group of hot melt adhesives, the solvent or dispersion based adhesive or the 1- or 2-component adhesives that can be applied in a dry-lamination process or a wet-lamination process.

14. Use of a composite material according to any one of claims 9 to 13 for the production of producible by folding and gluing containers, in particular sacks or bags.

15. Arrangement according to one of claims 1 to 8, made from a

Composite material according to one of claims 9 to 13.