EP3039186B1 - Effizient herstellbares zigarettenpapier für selbstverlöschende zigaretten - Google Patents
Effizient herstellbares zigarettenpapier für selbstverlöschende zigaretten Download PDFInfo
- Publication number
- EP3039186B1 EP3039186B1 EP14747961.2A EP14747961A EP3039186B1 EP 3039186 B1 EP3039186 B1 EP 3039186B1 EP 14747961 A EP14747961 A EP 14747961A EP 3039186 B1 EP3039186 B1 EP 3039186B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- cigarette paper
- filler
- weight
- diffusion capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 235000019504 cigarettes Nutrition 0.000 title claims description 148
- 239000000945 filler Substances 0.000 claims description 178
- 239000000203 mixture Substances 0.000 claims description 178
- 238000009792 diffusion process Methods 0.000 claims description 160
- 239000002245 particle Substances 0.000 claims description 103
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 74
- 238000000034 method Methods 0.000 claims description 60
- 238000009826 distribution Methods 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 40
- 239000013078 crystal Substances 0.000 claims description 32
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 28
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 16
- 238000007639 printing Methods 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 13
- 229910021532 Calcite Inorganic materials 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 235000010980 cellulose Nutrition 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 229920000881 Modified starch Polymers 0.000 claims description 5
- 235000019426 modified starch Nutrition 0.000 claims description 5
- 235000013808 oxidized starch Nutrition 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 230000037303 wrinkles Effects 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 238000007646 gravure printing Methods 0.000 claims description 4
- 239000001254 oxidized starch Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 3
- 244000215068 Acacia senegal Species 0.000 claims description 3
- 244000303965 Cyamopsis psoralioides Species 0.000 claims description 3
- 239000004375 Dextrin Substances 0.000 claims description 3
- 229920001353 Dextrin Polymers 0.000 claims description 3
- 229920000084 Gum arabic Polymers 0.000 claims description 3
- 235000010489 acacia gum Nutrition 0.000 claims description 3
- 239000000205 acacia gum Substances 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 235000019425 dextrin Nutrition 0.000 claims description 3
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 3
- 235000010413 sodium alginate Nutrition 0.000 claims description 3
- 239000000661 sodium alginate Substances 0.000 claims description 3
- 229940005550 sodium alginate Drugs 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims 5
- 244000061176 Nicotiana tabacum Species 0.000 claims 2
- 235000010216 calcium carbonate Nutrition 0.000 description 20
- 241000208125 Nicotiana Species 0.000 description 14
- 230000008859 change Effects 0.000 description 13
- 244000089742 Citrus aurantifolia Species 0.000 description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 12
- 235000011941 Tilia x europaea Nutrition 0.000 description 12
- 239000004571 lime Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000001508 potassium citrate Substances 0.000 description 3
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 235000015870 tripotassium citrate Nutrition 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001860 citric acid derivatives Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- JKRDADVRIYVCCY-UHFFFAOYSA-N 2-hydroxyoctanoic acid Chemical class CCCCCCC(O)C(O)=O JKRDADVRIYVCCY-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical class OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-L fumarate(2-) Chemical class [O-]C(=O)\C=C\C([O-])=O VZCYOOQTPOCHFL-OWOJBTEDSA-L 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000003893 lactate salts Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 150000004701 malic acid derivatives Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- -1 oxylates Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003873 salicylate salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 150000003892 tartrate salts Chemical class 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 235000019263 trisodium citrate Nutrition 0.000 description 1
- 229940038773 trisodium citrate Drugs 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/10—Cigars; Cigarettes with extinguishers
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
- A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
- D21H21/52—Additives of definite length or shape
Definitions
- the present invention relates to a cigarette paper which gives self-extinguishing properties to a cigarette made therefrom, wherein the required paper properties can be adjusted with little effort. More particularly, it relates to a cigarette paper which is partially treated with a composition which reduces the diffusion capacity of the cigarette paper and contains a filler having a specific crystal structure, particle shape or particle size, and a process for producing this paper and a cigarette made from this paper.
- a smoldering cigarette on a defined substrate for example, 10 layers of the filter paper Whatman no. 2, and observe whether the cigarette extinguished by itself, before the entire visible tobacco rod is burned out.
- the legal provisions require that of 40 tested cigarettes at least 30 have to extinguish by themselves.
- One way to achieve self-extinguishment of a cigarette in this test is to apply a composition in portions to the cigarette paper that reduces the diffusion capacity of the cigarette paper.
- the functioning of these sub-areas is based primarily on the fact that they hinder the access of oxygen to the cone of smoke of the cigarette and thus lead to the self-extinction of the cigarette. Since the access of oxygen during glaring is primarily determined by the concentration difference between the interior of the cigarette and the environment, that is, by the diffusion, it is important to choose the diffusion capacity of these subregions sufficiently low.
- the measurement of the diffusion capacity of such subregions can be carried out with a corresponding measuring instrument from Borgwaldt KC (Borgwaldt A50) according to the CORESTA Recommended Method no. 77 done.
- the necessary for the self-extinction of the cigarette diffusion capacity of the applied to the cigarette paper sections depends not only on the properties of the cigarette paper but also to a considerable extent on the tobacco blend in the cigarette and the geometry of the cigarette. It is known, for example, that a high content of coarse tobacco particles, the so-called stems , in the tobacco mixture makes self- extinguishment less likely, while a high proportion of fine-cut or expanded tobacco promotes self- extinguishment .
- cigarettes with a smaller diameter are generally easier to extinguish by themselves and a greater length of the tobacco rod is also beneficial for self-extinguishing, if only because, given the design of the portions, more of the portions of the tobacco rod treated with the composition will usually be more Cigarette are as with a short tobacco rod.
- compositions are known in the art, which can be applied in some areas on the paper. Often these are water-based compositions comprising at least one film-forming material. This film-forming material forms a superficial film upon drying of the paper after application, thus closing the pores of the paper and thus reducing the diffusion capacity. Other materials which instead penetrate into the pores of the paper are also known.
- the composition also contains pigments. These pigments can impart a color to the subregions, but in many cases are white to match the opacity and whiteness of the treated subregions to those of the untreated paper, making them very less visible.
- the application of the composition to the paper can be carried out according to the state of the art by all possible application methods, printing or spraying methods having proven themselves.
- the job can be done after the production of the untreated paper or during papermaking in the paper machine.
- the manufacturer of cigarette papers for self-extinguishing cigarettes is therefore required to provide a paper in which the diffusion capacity in the sub-areas is tailored to the entire cigarette construction that the legal requirements are being met, but the diffusion capacity is not unnecessarily low. Therefore, the cigarette paper manufacturer must be able to adjust the diffusion capacity of these sub-areas with the most efficient means in the largest possible range, so that even smaller quantities of such papers can be produced cost-effectively. Because while without the requirement of self-extinguishing a cigarette paper type can be used in principle on many different cigarette designs and thus can be produced in large batches, increased by this requirement, the number of different paper types and correspondingly decreases the size of a production batch.
- the prior art allows several ways to adjust the diffusion capacity of the treated portions of the cigarette paper.
- Another possibility is to vary the amount of composition per unit area of treated sections applied to the cigarette paper. Again, this can be done with a printing process, such as gravure, with the help of the printing cylinder.
- the impression cylinder has a plurality of small engraved or etched depressions corresponding to the print pattern into which the composition is taken from a reservoir and transferred from these depressions to the paper. The volume or other properties of these wells can affect the amount applied.
- the disadvantages with respect to the pressure cylinder change and the storage of the printing cylinder are the same as in the adaptation of the geometry of the partial surfaces.
- the WO 2009/006570 A2 discloses a cigarette paper having at least one treated portion in which is applied a composition containing filler particles or a mixture of filler particles.
- the self-extinguishing properties can be improved by selecting the material of the filler.
- preferred filler materials for these purposes are magnesium oxide, kaolin and mica.
- Non-preferred materials are lime, clay minerals, calcium carbonate or titanium oxide.
- WO 2013/178492 A2 discloses a cigarette paper containing pulp fibers and at least partially flaky calcium carbonate as a filler.
- the present invention is therefore based on the object of providing a cigarette paper which has a defined diffusion capacity in treated subregions and can be produced inexpensively.
- p is 50 / (d 90 -d 10) and the distribution width d 90 a dimensionless parameter, which is defined as d - represents related d 10 mean particle size d 50th
- the average size d 50 of the filler particles in the applied composition is at least 0.1 ⁇ m and at most 10 ⁇ m.
- the amount of material applied in the treated sub-areas, expressed as mass / application area, in the dried state is at least 0.5 g / m 2 and at most 12 g / m 2 .
- All information on particle sizes refers to the particle size distribution determined according to ISO 13320: 2009 by means of laser diffraction and a model according to Mie.
- the thus determined particle size distribution can be seen, which volume fraction of the particles is smaller than a predetermined size.
- Such proportions are given in the present disclosure in the form "d x " where x is a number between 0 and 100 and d is a measure of particle size.
- d 10 0.5 ⁇ m means that 10 % by volume of the particles are smaller than 0.5 ⁇ m.
- the particle size "d” corresponds to the diameter of a spherical particle. In the case of particles without a spherical shape, it corresponds to the diameter possessed by a spherical particle which, measured according to ISO 13320: 2009, gives the same result as the particle without a spherical shape.
- the object is accordingly achieved by applying to the cigarette paper in subregions a composition containing filler particles or a mixture of filler particles, wherein a desired diffusion capacity of the subregions can be adjusted by the crystal structure, shape and size distribution of these filler particles.
- the present invention is based on the recognition that the diffusion capacity in the treated areas - with otherwise the same composition and weight fraction - depending on the properties shape, crystal structure and particle size distribution of the filler can change, to an extent that allows it to adjust the diffusion capacity for a variety of base papers and cigarette configurations, respectively, to give the appropriate diffusion capacity.
- the "suitable diffusion capacity” is, for example, a diffusion capacity that leads to a reliable self-extinction in an ISO 12863: 2010 or ASTM E2187 test, but at the same time avoids that the cigarette extinguishes by itself in the normal smoking process.
- the adjustment of the diffusion capacity via the selection of the filler according to one or more of the above three criteria is therefore of particular industrial importance, because the other properties of the composition which have an influence on the processing process do not change or at least do not change significantly. This would be different if, for example, the diffusion capacity were adjusted via the weight proportion of the filler, since this would change the macroscopic physical properties of the composition, in particular the viscosity, so that the entire processing process would be influenced.
- filler types (a) - (c) lead to an increase in the diffusion capacity
- filler types (d) and (e) lead to a reduction of the diffusion capacity compared to a composition with conventional geologically degraded lime and are therefore well suited to the Adjust the diffusion capacity of the treated areas to the desired value.
- the inventors have found that the diffusion capacity of the portions of the cigarette paper can be increased under otherwise unchanged conditions when at least a part of the filler particles in the composition has a platy shape (see feature (a)).
- the inventors have also found that the diffusion capacity of the portions of the cigarette paper can be reduced under otherwise unchanged conditions when at least a portion of the filler particles in the composition have a cubic shape (feature (d)).
- the inventors have found that the diffusion capacity of the portions of the cigarette paper is otherwise in a middle range under otherwise unchanged conditions when at least a portion of the filler particles in the composition have a scalenohedral or rhombohedral crystal structure.
- the inventors have found that the diffusion capacity can be adjusted depending on a simple particle size distribution parameter of this filler.
- fillers of rhombohedral and scalenohedral crystal structure also have the potential to increase the diffusion capacity over that resulting from an otherwise similar composition with geologically degraded lime filler (features (b) and (c)) and, in the case of a scalenohedral crystal structure - to reduce (feature (e)).
- the parameter p is chosen to be at least 0.4, preferably at least 0.45 and at most 0.6, preferably at most 0.55.
- the parameter p either low, thus at least 0 and at most 0.3, preferably at most 0.25 and particularly preferably at most 0.2, or high, namely at least 0.7, preferably at least 0.8 and more preferably at least 0.85 and in particular at least 0.9.
- the parameter p is selected to be at least 0.1, preferably at least 0.2 and at most 0.5, preferably at most 0.4.
- the parameter p high ie at least 0.5, preferably at least 0.6 and particularly preferably at least 0.7.
- a particularly low parameter p as in the case of scalenohedral fillers, also leads to an increase in the diffusion capacity, can not be assessed from the available data, but the person skilled in the art will easily be able to determine this if suitable fillers are available.
- the proportion of these filler particles in the total amount of filler particles in the composition should be at least 20% by weight, preferably at least 50% by weight and more preferably at least 70 wt .-% amount. The higher the content of the filler particles, the more manifest the effect on the diffusion capacity associated with their shape.
- the particles should have an average size d 50 of at least 0.1 ⁇ m, preferably at least 0.3 ⁇ m and particularly preferably at least 0.5 ⁇ m.
- the mean size d 50 should be at most 10 ⁇ m, preferably at most 7 ⁇ m and particularly preferably at most 5 ⁇ m.
- a median size d 50 of at least 0.5 ⁇ m, preferably at least 1.0 ⁇ m, and of at most 5 ⁇ m, and preferably of at most 3 ⁇ m, has proven suitable.
- a range for the distribution parameter p d 50 / (d 90 -d 10 ) of at least 0.5, preferably at least 0.6 to at most 1.0, preferably at most 0.9 is well suited.
- a range for the distribution parameter p d 50 / (d 90 -d 10 ) of at least 0.2, preferably at least 0.3 to at most 0.7, preferably at most 0.6 is well suited.
- the platelet-shaped calcium carbonate particles have a length 1, a width b and a thickness d which correspond to the respective maximum dimensions in three mutually orthogonal spatial directions, both the length 1 and the width b being at least twice as large, preferably at least four times are as big as the thickness d.
- the length 1 and the width b will usually be different from each other, but should differ by a factor of less than 5, preferably less than 3 and more preferably less than 2.
- the length 1, the width b and the thickness d could correspond, for example, to the edge lengths of the cuboid, i. H. it is by no means necessary for the length 1 to correspond to the longest dimension of the particle, which in the case of an idealized cuboid would correspond to the spatial diagonal. In general, however, the length 1 will be greater than or equal to the width b and in turn differ by a factor of 2.5 or less from the longest spatial direction of the particle.
- FIG. 3 illustrates a plate-shaped calcium carbonate particle in which the length 1, width b and thickness d are drawn.
- the filler particles are preferably white so that the treated portions of the cigarette paper visually differ as little as possible from untreated areas of the same cigarette paper.
- Iron oxides can be used, but are not preferred because they are generally not white but often red, brown, yellow or black. However, they can be chosen favorably for colored cigarette papers.
- a preferred filler is calcium carbonate and particularly precipitated calcium carbonate, because it is purer than geologically degraded, and thus the purity requirements of cigarette paper are easier to meet.
- mineral forms of the calcium carbonate of the invention such as calcite, aragonite and vaterite, with which the invention can be realized in principle, calcite is preferred because of its ready availability.
- the proportion of the filler of the invention in the composition may vary.
- the filler should contain at least 1% by weight, preferably at least 3% by weight and at most 20% by weight, preferably at most 10% by weight.
- the content of the filler in the composition is determined primarily by how much the other constituents of the composition are capable of reducing the diffusion capacity. It is possible, but not according to the invention, to change the diffusion capacity by changing the amount of filler in the composition. However, this also affects the viscosity of the composition, which may require additional adjustments in the application process, for example, at speeds or drying temperatures.
- the content of the filler in the composition should remain constant and the diffusion capacity should be adjusted only by changing the shape, crystal structure and size of the filler particles.
- the composition itself first comprises a solvent, but the term "solvent” is not intended to mean that it is a solution in the narrower chemical sense. In most cases, the filler particles will be suspended in the solvent but not dissolved.
- Water is a particularly preferred solvent because it is toxicologically safe and does not interfere with the smell and taste of the paper. For reasons of taste and to avoid contamination, water in drinking water quality is particularly preferred.
- Other solvents such as ethanol or ethyl acetate, although not preferred, have at least the advantages over water of allowing them to evaporate on drying with lower temperatures and less energy and not causing wrinkles by swelling the fibers in the paper. Mixtures of solvents can also be used.
- film-forming materials selected from a group consisting of starch, starch derivatives, cellulose, cellulose derivatives, dextrins, guar or gum arabic and alginates, or mixtures thereof. Most preferred are oxidized starches and sodium alginate.
- the proportion of the diffusion capacity reducing material in the composition can vary within a wide range and is determined primarily by how much the material is capable of reducing the diffusion capacity and which viscosity is the composition for the order procedure.
- the diffusion capacity reducing material will be included in the composition in an amount of at least 0.1% by weight, preferably at least 1% by weight and more preferably at least 3% by weight.
- the material should be at most 40% by weight, preferably at most 30% by weight and more preferably at most 25% by weight of the composition.
- compositions may also be included to control certain properties of the composition or paper. These include materials for adjusting the viscosity, for adjusting the color or substances, such as citrates, acetates and phosphates or other Brandsalze that control the smoldering speed of the cigarette paper. The person skilled in the art is able to determine the proportion of these materials in the composition in accordance with the technical requirements for the paper or the application method.
- the amount of material applied in the partial regions of the cigarette paper is preferably at least 1 g / m 2 and / or at most 8 g / m 2 . With such order quantities, the desired diffusion capacity can be achieved in an advantageous manner.
- the cigarette paper can also be heated before the measurement.
- the cigarette paper is stored in a preheated to 230 ° C oven for 30 minutes under air atmosphere, then removed from the oven and conditioned according to ISO 187: 1990.
- the measurement of the diffusion capacity is carried out according to CORESTA Recommended Method No. 77 with a Borgwaldt A50 meter from Borgwaldt KC.
- the diffusion capacity of the treated portions is at least 0.05 cm / s, preferably at least 0.1 cm / s and at most 2 cm / s, preferably at most 1 cm / s.
- the diffusion capacity may vary from sub-area to sub-area, also a change in the diffusion capacity within a sub-range is possible, for example, to favorably influence the carbon monoxide in the smoke, as long as the legally required self-extinguishing according to ISO 12863: 2010 is not endangered.
- composition can be carried out by all known from the prior art method, in particular by printing or spraying.
- gravure or flexographic printing are particularly well suited.
- the job is usually done on the screen side of the cigarette paper, as it faces the tobacco, and the sub-areas are less visible to the smoker with normal use of the cigarette. Applying to the top is also possible because this side of the paper is better suited for printing.
- the application can be done in one or more layers with or without drying of the paper between the application procedures, whereby due to the necessary registration, i. Positioning, the individual layers to each other an order in as few layers, especially in only one layer is preferred. In the case where multiple layers are applied, it is not necessary that all layers be identical in shape and amount applied, and even in composition.
- the diffusion capacity which is already known in part from the prior art, but usually accessible to the skilled worker by simple experimentation. The principle of the subject invention remains applicable.
- compositions may be associated with the formation of wrinkles on the paper which may be remedied by further treatment such as post-wetting of the paper followed by drying under mechanical tension.
- substances for reducing wrinkling such as propylene glycol or glycerin, may be included in the composition.
- the invention is easily combinable with many further treatment steps of the cigarette paper, as the person skilled in the art can easily determine experimentally.
- These steps may be performed on the paper before or after the application of the composition, as required.
- the cigarette paper preferably has a basis weight of 9 g / m 2 up to 70 g / m 2 , preferably between 20 g / m 2 and 50 g / m 2 and preferably consists of pulp fibers, for example wood pulp fibers or pulp fibers from annual plants such as hemp, flax or esparto.
- the cigarette paper also preferably contains fillers, typically in a range of from 0% to 50%, preferably from 10% to 45%, by weight of the pulp, such as lime, kaolin, titanium dioxide, aluminum hydroxide, Magnesium oxide, magnesium hydroxide or, more rarely, iron oxides. Precipitated lime is preferred.
- the cigarette paper may also contain salts, for example, to control glow rate or other paper properties, including, for example, citrates, acetates or phosphates, malates, tartrates, nitrates, succinates, fumarates, gluconates, glycolates, lactates, oxylates, salicylates, ⁇ -hydroxycaprylates , Bicarbonates, carbonates such as tri-sodium citrate, tri-potassium citrate or monoammonium phosphate. They are preferably contained in the range from 0% to 7% by weight of the pulp and are typically applied to the paper from an aqueous solution in the size press or film press of the paper machine or a separate device. Other substances, such as dyes, may be added to the cigarette paper as long as they are legally permitted and toxicologically safe.
- salts for example, to control glow rate or other paper properties, including, for example, citrates, acetates or phosphates, malates, tartrates, nitrates,
- the composition does not become in a process as a whole, i. H. including the filler, formed.
- a preliminary composition which contains a solvent and a material capable of reducing the diffusion capacity of the cigarette paper but not yet the filler, at least not yet in the final amount.
- From this preliminary composition is then branched off a portion to which a filler or a mixture of fillers is added to form a first composition, while initially retaining a (possibly large) portion of the preliminary composition.
- a comparatively small amount of base cigarette paper can then be treated, and it can be checked whether the diffusion capacity in the treated areas is reduced to the desired extent.
- the preliminary composition in larger quantities and thus can be produced economically, while initially only a part of it is added to a first composition. If the first composition turns out to give the desired reduction in diffusion capacity in the treated areas, another part or all of the rest of the preliminary composition may also be supplemented with the same choice of filler or fillers.
- the addition of the fillers to the respective branched portion of the preliminary composition in the applicator or in a supply line to the applicator for applying the first and second composition is made.
- the admixture of the filler can thus be varied "on-line" during the application process, so that a suitable filler or a suitable filler mixture can be determined in a simple manner and with a comparatively low rejection.
- the continuous supply of a preliminary composition for transfer with fillers is understood as a "diversion" of a portion of the preliminary composition, because only a portion of the preliminary composition is always filled with fillers and the possibility exists that different proportions of the preliminary composition be mixed with different fillers.
- the steps B-E are preferably repeated until the deviation between the measured diffusion capacity and the setpoint value falls below a limit value. If this procedure is carried out automatically, it can be realized by a control process. However, the method can also be performed "manually” or semi-automatically, for example in step E, on the basis of the deviation between the measured diffusion capacity and the desired value, a person decides which filler is to be used as "second filler" in order to replace at least part of the "first filler".
- the at least approximately measurement of the diffusion capacity preferably takes place by measuring transmission, absorption and / or reflection of electromagnetic radiation.
- the diffusion capacity can not be determined as accurately as by the method described above, but this has the advantage that the diffusion capacity "on-line", d. H. can be determined during the treatment process.
- the second filler is formed at least partially by one or more of the above-mentioned filler particle types (a) - (c). Should the diffusion capacity measured in step D be above the setpoint, the second filler may be formed, at least in part, by one or both of the above filler particle types (d) and (e).
- the method is not limited to this. Instead, it can also use other types of filler particles that have the desired effect on the diffusion capacity.
- the composition contains two types of filler, which differ with respect to one of the characteristics of shape, crystal structure and particle size distribution and of which one filler - with the same proportion by weight and otherwise identical composition - leads to a higher diffusion capacity in the treated area than the other.
- step E the proportionate ratio of the two fillers in the composition to the composition of step B is changed to reduce the deviation of the diffusion capacity from the target value.
- the composition applied to the paper is an aqueous composition consisting of 13% by weight of oxidized starch, 0.5% by weight of cationic starch and 6% by weight of lime as filler.
- the composition was prepared according to the instructions of the oxidized starch manufacturer. A total of 13 different fillers were added according to Fig. 4 chosen and suspended in each case one of the fillers in the composition.
- the flow time of the composition as a measure of the viscosity was determined with a 4 mm opening cup according to ⁇ NORM EN ISO 2431: 2011 at a temperature of 60 ° C and is in Fig. 4 specified.
- the composition was applied to two different cigarette papers A and B.
- the cigarette paper A weight had a basis weight of 25 g / m 2, an air permeability according to ISO 2965 of 70 cm.min -1 -1 .kPa, a filler content of 33 wt .-%, and a content of 1 before application of the composition.
- -% tripotassium citrate as fire salt while cigarette paper B has a basis weight of 24 g / m 2 , an air permeability according to ISO 2965 of 75 cm.min -1 .kPa -1 , a filler content of 29 wt .-%, and a content of 2 wt .-% tripotassium citrate as Brandsalz had.
- the cigarette paper was stored in a preheated to 230 ° C oven for 30 minutes under air atmosphere, then removed from the oven and conditioned according to ISO 187: 1990.
- the measurement of the diffusion capacity was then carried out according to CORESTA Recommended Method no. 77 with a Borgwaldt A50 meter from Borgwaldt KC.
- Both cigarette papers had without order of the composition after the above heating process calculated from 10 individual values average diffusion capacity of 2.17 cm / s.
- the order of the composition was carried out by means of a gravure printing unit according to the prior art in a layer on the screen side of the original, so not heated, cigarette paper, in the form of 6 mm wide oriented in the transverse direction of the paper bands with a distance of tape center to center of 27 mm , After the job, the paper was dried.
- the now provided with the composition paper was stored in a preheated to 230 ° C oven for 30 minutes under air atmosphere, then removed from the oven and according to ISO 187: 1990 conditioned.
- the measurement of the diffusion capacity was then carried out according to CORESTA Recommended Method no. 77 with a Borgwaldt A50 measuring instrument from Borgwaldt KC in 10 different places.
- the mean values of the diffusion capacities are shown in Tables 1 and 2 of 4 and 5 specified.
- geologically degraded and ground lime from Examples 8 and 23 serves as a reference point.
- FIG. 1 are the values of the distribution parameter p and the diffusion capacities for papers to which a composition having a scalenohedral filler has been applied, represented graphically, so for the examples 3, 4, 6, 9-11, 16-18, 21, 22 and 24 as a round point, as well as for Examples 12 and 26, in which the filler in addition to calcite also contains aragonite, as a small Square. It can be clearly seen that both at low values for p, for example p ⁇ 0.3, and at high values of p, for example P> 0.7, a high diffusion capacity can be achieved. In these ranges for the parameter p, the diffusion capacity is reduced by a factor of 3 to 6 compared to the untreated cigarette paper.
- Examples 12 and 26 show a mixture of calcite and aragonite, with a primary scalenohedral crystal structure.
- the data is as a small square in FIG. 1 and fits well into the image for scalenohedral fillers.
- FIG. 2 For example, the values of the distribution parameter p and the diffusion capacities for papers to which a composition containing a rhombohedral filler has been plotted are shown graphically, that is for Examples 2, 5, 7, 14, 19, and 20. It is clearly seen that at low value for p, for example P ⁇ 0.5, a low diffusion capacity can be achieved and thus a decrease in the diffusion capacity over the untreated cigarette paper by a factor of more than about 5, while for values of P> 0.5, high diffusion capacities result, ie one Decrease by a factor of less than about 5.
- the line in FIG. 2 shows the curve 3p ⁇ (p-0.6) + 0.7 in cm / s and illustrates the good correlation of this size with the diffusion capacity. The correlation coefficient is more than 0.98. Whether for particularly low values of the distribution parameter p an increase of the diffusion capacity results for rhombohedral fillers can not be reliably determined from the data. However, one skilled in the art will be able to determine this by simple experimentation.
- Tables 1 and 2 of 4 and 5 are sorted in descending order according to the measured diffusion capacity. It can be seen by comparing the first and second column of Fig. 5 also that the order of the lime varieties remains approximately the same. As the examples of Tables 1 and 2 of 4 and 5 differ only in terms of the cigarette paper, it turns out that the invention can be used largely independently of the cigarette paper.
- a particular advantage of the invention is that the diffusion capacity can be influenced without changing the process parameters or the chemical constituents of the composition to be applied, simply by selecting a suitable crystal structure, shape or size of the filler particles.
- the invention can therefore be implemented particularly advantageously in the following method.
- a cigarette paper is provided to which the composition is to be applied in some areas.
- a preliminary composition comprising at least the solvent and a material for reducing the diffusion capacity, but at most insignificant amounts of the fillers of the invention. This can preferably be done in a storage container.
- this step may comprise suspending the starch or starch derivative in water, heating the suspension, lingering at an elevated temperature, and cooling. All of these steps can be done with concomitant stirring of this preliminary composition.
- the next step is to select the type of filler particles based on the diffusion capacity of the treated portions on the cigarette paper.
- the starting point for the following considerations is the diffusion capacity of the subregions of a cigarette paper which is treated in these subregions with a composition containing as filler a geologically degraded lime having an average particle size of about 2.38 ⁇ m.
- Terms such as “high”, “higher”, “lower”, “lower” or “average” in terms of diffusion capacity are to be understood relative to this reference point.
- the distribution parameter p d 50 / (d 90 -d 10 ) should be at least 0.5, preferably at least 0.6 and at most 1.0, preferably at most 0.9.
- the distribution parameter p d 50 / (d 90 -d 10 ) should preferably be at least 0.2, preferably at least 0.3 and at most 0.7, preferably at most 0.6.
- p should be ⁇ 1.2, preferably ⁇ 1.0.
- the distribution parameter p of the scalenohedral filler ⁇ 0.3, preferably ⁇ 0.4 and ⁇ 0.7, preferably ⁇ 0.6.
- the range of 0.45 ⁇ p ⁇ 0.55 is particularly suitable for reducing the diffusion capacity.
- a filler having a value of p ⁇ 0.5, preferably ⁇ 0.6 and more preferably p ⁇ 0.7, and preferably less than 1.0, preferably less than 0.8, will be selected.
- the orientation is advantageously based on the information given above. Preference is given to precipitated calcium carbonate and particularly preferably calcite.
- the next step is to disperse the filler in the preliminary composition. It is essential to the invention that the filler is not added as usual to the entire provisional composition prepared in the first step but only part of it. The amount of filler added to this portion of the preliminary composition will be consistent with the desired concentration of filler in the final composition. This allows the production of smaller quantities of the finished composition so that smaller batches of the paper can be made. In addition, it allows the rapid and easy change of the diffusion capacity by changing the filler without having to recreate the preliminary composition.
- the dispersion of the filler in a portion of the preliminary composition can be accomplished in a variety of ways.
- the filler first in a solvent, for example by stirring, preferably using the same solvent as for the preliminary composition, and then adding the filler suspension to the preliminary composition while transferring the latter to the applicator.
- a solvent for example by stirring, preferably using the same solvent as for the preliminary composition
- the preliminary composition may for example be pumped from the storage tank in a pipe to the applicator and the filler suspension is, preferably by pumping, introduced into the same pipeline in the required amount.
- Very particularly preferred is a method in which the flow in the pipeline is turbulent and thus the mixing of the filler suspension takes place as quickly as possible with the preliminary composition.
- the method can be used particularly advantageously if the dead volume of the lines, containers and devices is as small as possible until the composition is applied to the paper. This will be the case, for example, when applied by spraying. In this way, a change in the type of filler in a very short time on the diffusion capacity of the treated portions on the cigarette paper impact, for example, without stopping the applicator.
- the finished composition of the applicator is then fed and applied to the paper in partial areas.
- the usual methods such as printing methods, in particular gravure printing and flexographic printing, or spraying methods are available. After that, the paper is dried.
- the diffusion capacity of the portions of the cigarette paper is measured. This can be done by sampling, off-line, on a separate meter, such as a Borgwaldt KC (Borgwaldt A50) instrument according to CORESTA Recommended Method no. 77 happen, or in the current order device, so on-line. Since direct measurement of the diffusion capacity on-line is difficult, it can be estimated from other quantities such as transmission, absorption or reflection of electromagnetic radiation. Such an estimate may be made by image-analytical means, for example, the transparency of the electromagnetic-wave paper having a wavelength of at least 100 nm and at most 500 nm.
- This comparison of the intensities must be synchronized with the presence of treated portions in the range of the sensor.
- the obtained measured value is then compared with the desired value and the difference is transferred to an adjusting device which changes the proportions of the fillers fed to the preliminary composition. For example, if one measures too low a diffusion capacity and wishes to increase the diffusion capacity, one will reduce the amount of cubic calcite and increase that of platy calcite. If the diffusion capacity is too high, the procedure is reversed accordingly. This can be done, for example, by adjusting the flow rates by means of a flow regulator. Preferably, the adjustment of the proportions is done so that the total amount of filler in the composition does not change.
- this process can of course also be carried out with a mixture of two or more fillers of a different shape or crystal structure, for example cubic and scalenohedral, or platelet-shaped and rhombohedral, or cubic, scalenohedral and platelet-shaped or cubic, rhombohedral and platelet-shaped.
- a filler having a distribution parameter p d 50 / (d 90 -d 10 ) of at least 0.2, preferably at least 0.3 to at most 0.7, preferably at most 0.6.
- the principle is always, regardless of shape, crystal structure and particle size distribution, to combine two or more fillers which give substantially different diffusion capacities in the partial areas on the cigarette paper.
- inventive and preferred distribution parameter intervals generally apply to the use of filler particles having the particular shape or crystal structure, regardless of whether the filler is used alone or in a mixture of two or more fillers.
- cigarettes can be produced manually, manually or partially manually according to the methods of the prior art.
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PCT/EP2014/067016 WO2015028276A1 (de) | 2013-08-29 | 2014-08-07 | Effizient herstellbares zigarettenpapier für selbstverlöschende zigaretten |
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EP (1) | EP3039186B1 (ko) |
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DE102013109386B3 (de) | 2013-08-29 | 2015-01-15 | Delfortgroup Ag | Effizient herstellbares Zigarettenpapier für selbstverlöschende Zigaretten, Verfahren zu seiner Herstellung sowie eine Zigarette |
PL3446573T3 (pl) | 2017-08-24 | 2021-05-04 | Jt International S.A. | Papier owijający do wyrobu do palenia |
DE102018104823A1 (de) * | 2018-03-02 | 2019-09-05 | Delfortgroup Ag | Rauchartikel mit steifem umühllungsmaterial |
DE102018118271A1 (de) * | 2018-07-27 | 2020-01-30 | Delfortgroup Ag | Leichtes trennbasispapier |
DE102020108071A1 (de) | 2020-03-24 | 2021-09-30 | Delfortgroup Ag | Umhüllungspapier für Rauchartikel mit verbessertem Aschebild |
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DE102012109642B8 (de) * | 2012-10-10 | 2014-06-26 | Delfortgroup Ag | Zigarettenpapier mit Füllstoff mit spezieller Partikelgrößenverteilung und Zigarette |
DE102012111635B8 (de) | 2012-11-30 | 2014-06-26 | Delfortgroup Ag | Verbessertes Zigarettenpapier für selbstverlöschende Zigaretten und Verfahren zu seiner Herstellung |
-
2013
- 2013-08-29 DE DE102013109386.8A patent/DE102013109386B3/de active Active
-
2014
- 2014-08-07 EP EP14747961.2A patent/EP3039186B1/de active Active
- 2014-08-07 TR TR2019/11238T patent/TR201911238T4/tr unknown
- 2014-08-07 PL PL14747961T patent/PL3039186T3/pl unknown
- 2014-08-07 WO PCT/EP2014/067016 patent/WO2015028276A1/de active Application Filing
- 2014-08-07 CN CN201480047977.7A patent/CN105518213B/zh active Active
- 2014-08-07 US US14/912,940 patent/US10231481B2/en active Active
- 2014-08-07 BR BR112016003341-8A patent/BR112016003341B1/pt active IP Right Grant
- 2014-08-07 MY MYPI2016000257A patent/MY177941A/en unknown
- 2014-08-07 KR KR1020167004811A patent/KR102427680B1/ko active IP Right Grant
- 2014-08-07 ES ES14747961T patent/ES2747802T3/es active Active
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2016
- 2016-02-23 PH PH12016500362A patent/PH12016500362A1/en unknown
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EP1166656A2 (en) | 2000-06-22 | 2002-01-02 | Schweitzer-Mauduit International, Inc. | Paper wrapper for reduction of cigarette burn rate |
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Also Published As
Publication number | Publication date |
---|---|
ES2747802T3 (es) | 2020-03-11 |
KR20160047478A (ko) | 2016-05-02 |
CN105518213A (zh) | 2016-04-20 |
DE102013109386B3 (de) | 2015-01-15 |
BR112016003341B1 (pt) | 2022-08-02 |
WO2015028276A1 (de) | 2015-03-05 |
BR112016003341A2 (ko) | 2017-08-01 |
PL3039186T3 (pl) | 2019-11-29 |
KR102427680B1 (ko) | 2022-07-29 |
PH12016500362A1 (en) | 2016-05-02 |
TR201911238T4 (tr) | 2019-08-21 |
US10231481B2 (en) | 2019-03-19 |
MY177941A (en) | 2020-09-28 |
EP3039186A1 (de) | 2016-07-06 |
CN105518213B (zh) | 2018-07-27 |
US20160198761A1 (en) | 2016-07-14 |
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