WO2019166308A1 – September 6, 2019 – AEROSOL-GENERATING ARTICLE HAVING RIGID ENVELOPING MATERIAL

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Inventors :

MAIR, Christian - Amraser Strasse 13, 6020 Innsbruck; VOLGGER, Dietmar - Gnadenwald 62C, 6069 Gnadenwald

Owner :

DELFORTGROUP AG

Application Number :

WOEP19054262

Document Number :

WO2019166308A1

Priority Date :

March 2, 2018

Filing Date :

February 21, 2019

Date of Grant/ Publication :

September 6, 2019

Class :

A24D1 / 02; A24F47 / 00

Abstract

Disclosed is an aerosol-generating article, comprising an aerosol-generating material, which, when used as intended, is heated to release an aerosol but is not combusted, and an enveloping material. The enveloping material has a thickness of at least 50 µm and at most 350 µm, a mass per unit area of at least 50 g/m² and at most 200 g/m², a specific density of at least 500 kg/m³ and at most 1300 kg/m³ and a flexural strength of at least 0.15 Nmm and at most 1.50 Nmm. The enveloping material further comprises at least two layers, wherein the layers are connected with each other, and wherein one layer is a paper layer having a thickness of at least 40 µm and at most 70 µm, a mass per unit area of at least 50g/m² and at most 80 g/m² and a density of at least 700 kg/m³ and at most 1300 kg/m³, and the specific density thereof is higher than the specific density of each one of the individual layers of the enveloping material.

Claim(s)

1. Aerosol fire-article, comprising an aerosol generating material, which is heated under intended use, release is an aerosol, but not burned, and a wrapping material, wherein the coating composition a thickness of at least 50 gm and at most 350 gm -, a basis weight of at least 50 g/m – 2 and at most 200 g/m 2 , – a specific density/kg of 500 m of at least 3 1300 kg/m is at most and 3 and a flexural strength of at least 0.15 – 1.50 Nmm Nmm and at most has, wherein the coating composition comprises at least two layers, wherein the layers are connected together, and wherein a sheet is a paper sheet, the a thickness of at least 40 gm and at most 70 gm -, a basis weight of at least 50 g/m – 2 and not more than 80 g/m 2 and a density/kg of – 700 m of at least 3 1300 kg/m is at most and 3 has, and – whose specific density is higher than the specific gravity of each of the other layers of the wrapping material.;
2. Aerosol fire-article according to any of the preceding claims, wherein the thickness of the wrapping material is at least one and at most 200 gm 60 gm DA, preferably at most 150.;
3. Aerosol fire-article according to any of the preceding claims, wherein the basis weight of the wrapping material at least 55 g/m 2 , preferably at least 60 g/m 2 and at most 130 g/m 2 , preferably at most 120 g/m 2 is.;
4. Aerosol fire-article according to any of the preceding claims, wherein the density of the wrapping material/m is at least 600 kg of 3 , preferably at least 700 kg/m is 3 1250 kg/m is at most and 3 , preferably at most 1200 kg/m is 3 is.;
5. Aerosol fire-article according to any of the preceding claims, wherein the flexural rigidity of said wrapping material is at least 0.25 Nmm , preferably at least 0.27 Nmm and at most 1.25 Nmm , preferably at most 1.00 Nmm .;
6. Article according to any of the preceding claims aerosol fire-, wherein the connection between at least two layers is, preferably constructed between all layers of the wrapping material positively, wherein the positive connection is formed by knurling or by mechanical perforating the stacked layers of the wrapping material.;
7. Article according to any of the preceding claims aerosol fire-, wherein at least two layers, preferably all layers of the wrapping material being bonded together.;
8. Aerosol fire-article according to claim 7, wherein the seals are formed over the entire surface.;
9. Article according to claim 7 aerosol fire-, wherein at least one bonding two layers of the packaging material are not over the entire surface, wherein the at least one non full-area bonding is embodied, at least 10% that, particularly preferably at least 20% and most preferably at least 40% on applied on, and 90% or less, preferably at most 70% and at most 60% of the area on a layer of the wrapping material particularly preferably is adhesive.;
10. Article according to any of claims 7 to 9 aerosol fire-, wherein the amount g/m to adhesive, the remaining after drying was, based on the surface area, to the actually applied adhesive, at least 2 2 , preferably at least 4 g/m 2 at least 5 g/m and most preferably 2 is, and/or at most 12 g/m 2 , preferably at most 10 g/m 2 and most preferably at most 9 g/m 2 is.;
11. Aerosol fire-article according to any one of 10 9or, wherein the adhesive is applied in at least one bonding between two layers of the wrapping material in the form of a pattern, which is formed of a plurality of splices, their average dimension in a direction, corresponding to the direction of the bending force expected train – and by compressive stresses, is greater than in a direction transverse thereto.;
12. The Li aerosol fire-article of claim, having a substantially cylindrical shape, and wherein the adhesive is applied in the form of a pattern of lines, extending along a direction, corresponding to a circumferential direction of the aerosol-generating article.;
13. Aerosol fire-article according to any of claims 9 to 12, whose Wrapping material comprises three or more layers, which are connected by two or more bonds, wherein at least two of these two or more bonds each are formed by a pattern of a plurality of splices, whose average expansion in a respective preferred direction is greater, than in a direction transverse thereto, and wherein said at least two different preferred directions are these bonds, preferably are substantially orthogonal to each other.;
14. Article according to any of claims 7 to 13 aerosol fire-, its A level of a kit wrapping material, as measured according to TAPPI t559 CM 02, of at least 4, more preferably of at least 6 and most preferably at least 10 has.;
15. Article according to any of claims 7 to 14 aerosol fire-, wherein a ratio of the Cobb whose wrapping material öo – Value according to ISO 535:2014 into g/m 2 divided by the basis weight of the wrapping material in g/m 2 at most 0.80, preferably at most 0.50 0.20 is more preferably at most.;
16. Article according to any of the preceding claims aerosol fire-, wherein said paper layer has a thickness of at least the highest specific density of the wrapping material 45 and PM preferably of at least 50 microns and a thickness of at most 65 pm and PM/or preferably at most 60 has.;
17. Article according to any of the preceding claims aerosol fire-, wherein said paper sheet has a basis weight of at least 55 g/m highest specific density of the wrapping material 2 and preferably at least 60 g/m 2 and/or a weight of 75 g/m at most 2 and more preferably of at most 70 g/m 2 has.;
18. Article according to any of the preceding claims aerosol fire-, wherein said paper layer specific density of the highest density of at least 1150 m/kg of wrapping material 2 1250 kg/m is and of at most 3 has.;
19. Aerosol fire-article according to any of the preceding claims, wherein the bending stiffness of said paper layer is highest specific density of the wrapping material at least 0.06 Nmm per se, preferably at least 0.07 Nmm and at most 0.20 Nmm , preferably at most 0.18 Nmm .;
20. Aerosol fire-article according to any of the preceding claims, wherein said paper layer specific density of the wrapping material comprises a filler highest, formed of particles, whose extension is in at least one spatial direction on average a factor of at least 1.75, preferably at least 2 and more preferably at least 2.5 greater, than in a spatial direction orthogonal thereto, wherein said filler is preferably formed by lime acicular, plate-like lime, clay, talc or mixtures thereof.;
claim 21: 21. Aerosol fire-article according to any preceding, wherein said paper layer contains one or more additives specific density of the highest wrapping material, selected from the group consisting of: starch, starch derivatives, cellulose derivatives, polyvinyl alcohol, guar gum, guar derivatives, and latex.;
claim 22: 22. Aerosol fire-article according to any of the preceding claims, wherein the at least one additional layer of the wrapping material is likewise formed by paper or by a plastic film or are.;
claim 23: 23. Aerosol fire-article according to claim 22, wherein the at least one additional layer is formed as a further paper layer, comprises the pulp, wherein at least a portion of the pulp is formed by pulp from hemp, flax, sisal fiber, jute or Abacä , preferably less than 10 wt.% – said further paper layer Filler, based on the weight of said further paper layer.;
claim 24: 24. Aerosol fire-article according to any of the preceding claims, its overwrap material comprises exactly two or three layers, wherein all layers are configured as paper layers.;
claim 25: 25. Aerosol fire-article according to claim 24, its overwrap material comprises exactly three layers, all of which are designed as paper layers, wherein the density is the average paper layer less than the density of two outer paper layers.;
claim 26: 26. Aerosol fire-article according to claim 23, its overwrap material comprises exactly three layers, all of which are designed as paper layers, wherein said paper layer, whose density is higher than that of the further layers, the average paper layer forms in the wrapping material, wherein the thickness of each of the two outer paper layers is at least 40 pm and at most 100 pm.;
claim 27: 27. A method for manufacturing a packaging material according to any of claims 1 to 26 an aerosol generating article, wherein the wrapping material for a thickness of at least 50 pm and at most 350 pm -, a basis weight of at least 50 g/m – 2 and at most 200 g/m 2 , – a specific density/kg of 500 m of at least 3 1300 kg/m is at most and 3 and a flexural strength of at least 0.15 – 1.50 Nmm Nmm and at most comprises, wherein the coating composition comprises at least two paper layers, are connected to one another, including a paper layer, whose specific density is higher than the specific gravity of each of the other layers of the wrapping material and the a thickness of at least 40 pm and at most 70 pm -, a basis weight of at least 50 g/m – 2 and not more than 80 g/m 2 and a density/kg of – 700 m of at least 3 1300 kg/m is at most and 3 comprises, wherein a first pulp suspension from a first headbox given contained on the screen of a papermaking machine, to form a first paper layer, and a second pulp suspension from a second headbox onto the given contained on the screen of the paper machine is positioned first paper layer, to form a second paper layer, forming with the first paper layer has a composite.;
claim 28: 28. Method according to claim 27, wherein a third pulp suspension of a third given contained headbox onto the second suspension is, to form a third paper layer, forming with the second paper layer has a composite.;
claim 29: 29. Wrapping material having for aerosol generating article, containing an aerosol generating material, which is heated under intended use, release is an aerosol, but not burned, – a thickness of at least 50 pm and at most 350 pm, a basis weight of at least 50 g/m – 2 and at most 200 g/m 2 , a specific density of at least 500 kg/m is – 3 1300 kg/m is at most and 3 and – a bending stiffness of at least 0.15 Nmm and at most 1.50 Nmm , wherein the coating composition comprises at least two layers, wherein the layers are connected together, and wherein a sheet is a paper sheet, the a thickness of at least 40 pm and at most 70 pm -, a basis weight of at least 50 g/m – 2 and not more than 80 g/m 2 and a density/kg of – 700 m of at least 3 1300 kg/m is at most and 3 has, and – whose specific density is higher than the specific gravity of each of the other layers of the wrapping material.;
claim 30: 30. Wrapping material according to claim 29, for use in a aerosol-generating article according to any of claims 1 to 26.

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