WO2014037073A1 - Zigarettenpapier mit homogenem optischen eindruck - Google Patents
Zigarettenpapier mit homogenem optischen eindruck Download PDFInfo
- Publication number
- WO2014037073A1 WO2014037073A1 PCT/EP2013/002235 EP2013002235W WO2014037073A1 WO 2014037073 A1 WO2014037073 A1 WO 2014037073A1 EP 2013002235 W EP2013002235 W EP 2013002235W WO 2014037073 A1 WO2014037073 A1 WO 2014037073A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cigarette paper
- composition
- area
- cigarette
- iso
- Prior art date
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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
- A24D1/02—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
-
- 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
-
- 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
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
-
- 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
- D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
-
- 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
- D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
- D21H19/68—Coatings characterised by a special visual effect, e.g. patterned, textured uneven, broken, discontinuous
-
- 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
- D21H21/28—Colorants ; Pigments or opacifying agents
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/02—Patterned 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
Definitions
- the present invention relates to a cigarette paper and an associated manufacturing method.
- it relates to a cigarette paper in which the visibility of inhomogeneities in the whiteness and the opacity of the paper is reduced to the human eye, so that the tobacco rod of a cigarette made from this paper gives a homogeneous visual impression.
- a cigarette usually consists of a cylindrical tobacco rod wrapped in a cigarette paper and optionally further includes a filter plug enveloped by a filter wrap paper which is connected to the tobacco rod by a mouthpiece wrapping paper.
- an optically homogeneous tobacco rod is regarded as a mark of a high-quality cigarette brand, a so-called "premium brand.” This can generally mean that the tobacco rod wrapped in cigarette paper is visually homogeneous, opaque and white when viewed from the outside, so that the tobacco particles of the tobacco rod are not penetrated by the tobacco rod Paper can be seen as a variation of whiteness.
- opacity ie the opacity of the cigarette paper. It is determined to ISO 2471 and expressed as a percentage from 0% (clear) to 100% (completely opaque).
- cigarette papers are light gray to white, although black cigarette papers and colored cigarette papers are also available on the market.
- the whiteness of the cigarette paper is therefore also an important visual feature and is determined according to ISO 2470-1. It is also quantified as a percentage compared to a white standard with a value of 0% (black) to 100% (white). Fluorescence also allows values over 100% to be achieved, which, however, are only just over 100% and are usually only achieved in conjunction with optical brighteners.
- a cigarette paper In addition to the optical properties of a cigarette paper play especially those technical properties of the cigarette paper a role that can influence the ingredients of the smoke of a cigarette made from it. These ingredients are determined, for example, by a method described in ISO 4387 and include, but are not limited to, the nicotine-free dry condensate ("tar"), the nicotine content, and the carbon monoxide content in the smoke of a cigarette.
- An important such technical property of the cigarette paper is its air permeability. The air permeability is determined according to ISO 2965 and indicates which air volume per unit time, per unit area and per pressure difference flows through the cigarette paper and therefore has the unit cm 3 / (min cm 2 ka).
- the air permeability determines how much the smoke is diluted during a draft by the air flowing through the cigarette paper into the tobacco rod.
- the diffusion capacity of a cigarette paper for C0 2 can be determined, for example, with the C0 2 Diffusivity Meter from Sodim.
- the diffusion capacity determines the gas exchange by the cigarette paper between the tobacco rod and the environment by diffusion while the cigarette is glowing.
- the treated portions are designed as 5 mm to 7 mm wide bands which are applied to the inside of the cigarette paper and extend on the cigarette in the circumferential direction. The bands hinder the access of oxygen to the glow cone of the smoldering cigarette and thus cause self-extinction.
- the object of the present invention is to provide a cigarette paper which improves the optical properties of a cigarette made from this cigarette paper and, in particular, makes the optical inhomogeneities of the cigarette paper less noticeable to the human eye, without substantially impairing the technical properties of the cigarette paper.
- a composition in the form of a pattern is applied to the cigarette paper, which has a Coaseness Tamura, which is at most 0.22 mm, preferably at most 0.20 mm.
- the absolute difference in whiteness according to ISO 2470-1 between an area of the cigarette paper to which the composition is applied over the entire surface and an area of the cigarette paper to which the composition is not applied is at least 25%, preferably at least 35% especially preferably at least 40%. However, it should not exceed 60%, preferably 55%.
- the opacity according to ISO 2471 of a surface of the cigarette paper to which the composition is applied over the entire surface is higher than that Opacity of an area to which this composition is not applied.
- the values of whiteness according to ISO 2470-1 and opacity according to ISO 2471 always refer to the composition in the dried state.
- the inventors have surprisingly found that contrary to expectation, for example, for white cigarette paper, the optical quality can be improved by the application of less white compositions.
- this pattern is produced by applying a composition to the cigarette paper.
- the areas in which the composition was applied differ from the untreated areas of the cigarette paper in terms of whiteness and opacity.
- An improvement in the optical properties of the cigarette paper in the context of this invention is achieved if the above relationships exist between the whiteness, the opacity and the structure size of the pattern applied to the cigarette paper.
- the effect according to the invention is achieved by applying a pattern to the cigarette paper which slightly deviates from the cigarette paper in the white and is so finely structured that the smoker, from the distance from which he usually looks at a cigarette, has the structure of the cigarette Pattern can not perceive in detail. Instead of perceiving this pattern, he sees only a slightly less white surface than with conventional cigarette paper, but - surprisingly - optically much more homogeneous.
- the coarseness according to Tamura is sufficiently small.
- a lower limit of the Coarseness results essentially for practical considerations, because can print with the preferred printing methods no arbitrarily small structures. Therefore, in the preferred embodiments, it will be at least 0.01 mm, preferably at least 0.05 mm
- the printed area is defined as the area of the cigarette paper to which a composition according to the invention has been applied. It does not matter whether the composition was actually applied by a printing process, but only that it was applied by any method. Also, for example, the spraying of the composition should be covered by it.
- the treated area is defined as the printed area supplemented by an imaginary border around the printed area with a width of 1.5 mm. More precisely, the treated area is the union of all circular areas with a radius of 1, 5 mm, whose centers lie in the printed area.
- the unprinted area is defined as that part of the treated area that does not belong to the printed area.
- the untreated area is defined as the area of the cigarette paper that does not belong to the treated area.
- the visible cigarette paper surface is defined as the area of the cigarette paper that is visible on the cigarette from the outside. Thus, for example, it does not include the area which is overlapped by the tipping paper nor the area of the cigarette paper which is covered in the formation of a glue seam of a cigarette paper tube.
- various parameters can be used that are determined by numerical calculations from a digital image of the pattern.
- a commonly used parameter that correlates well with human perception is the so-called coarseness according to Tamura, described in H. Tamura, et al .: Texture features corresponding to visual perception. IEEE Transactions on Systems, Man, and Cybernetics, vol. SMC-8, no. 6, 1978, 460-473. Based on this, the algorithm for determining coarseness according to Tamura is described in more detail below.
- the input data is a digital image of the print pattern, in which each pixel is assigned a gray level.
- the gray levels are described in monotonic increasing, for example, by integer values from 0 (black) to 255 (white).
- the picture is in one Resolution of 0.01 x 0.01 mm per pixel.
- the image will show at least one repeating unit, otherwise it will show the visible cigarette paper surface.
- the image has an extension of w pixels in the x direction and h pixels in the orthogonal y direction.
- the x-direction corresponds to the circumferential direction on the cigarette and the y-direction is parallel to the longitudinal axis of the tobacco rod.
- the Coarseness according to Tamura depends little on the choice of directions and in particular not on a permutation of x-direction and y-direction. Likewise, it does not depend on the concrete numerical values that characterize the gray scale, but only on the relationships to each other within the image.
- the position of a pixel is described by integer coordinates x and y with 0 ⁇ x ⁇ w and 0 ⁇ y ⁇ h.
- Each pixel with the coordinates (x, y) is assigned a gray level g (x, y).
- g (x, y) g (x modulo w, y modulo h), so the image is considered to be endlessly repeating in each direction.
- K max (x, y) k, that is:
- C Tamura 1 + ⁇ ⁇ (* »y)
- the coarseness has the unit pixels and can be converted into mm by multiplying it by the pixel size, in this case 0.01 mm per pixel. It is a measure of the average structure size of the digital image. A size of 0.01 mm per pixel is sufficiently small for the characterization of the samples of the present invention, because smaller structures can be produced with the preferred application methods, in particular in the gravure printing method, and are not required for the effect according to the invention.
- the coarseness of the applied Tamura pattern as mentioned above is at most 0.22 mm, preferably at most 0.20 mm.
- the inventors were able to determine that patterns whose coarseness assumes such low values achieve the desired effect. Investigations by the inventors have shown that this effect with a correspondingly chosen coarseness for a variety of different patterns some of which are shown below. Coarseness accordingly has a significant meaning for the effect according to the invention, ie independent of the specific design of the sample.
- the whiteness of the printed area should be less than the whiteness of the unprinted area.
- the absolute difference in whiteness according to ISO 2470-1 between the printed and the unprinted area is at least 25%, preferably at least 35% and particularly preferably at least 40%. At the same time, however, the difference should be at most 60%, preferably at most 55%, in order to avoid clearly discernible differences.
- the inventors have found that the effect according to the invention can be achieved over a comparatively large range of whiteness according to ISO 2470-1 and the opacity according to ISO 2471 of the untreated cigarette paper.
- the effect is less pronounced if both the whiteness and the opacity of the untreated cigarette paper are already very high, ie the optical quality of the untreated paper is already very good.
- at least one area of the cigarette paper to which the composition is not applied should have an ISO 2470-1 whiteness of less than 95% or an ISO 2471 opacity of less than 90%.
- sufficiently large test areas can be formed at another location of the cigarette paper and used for the measurement, for example sufficiently large surfaces printed over the whole area.
- sufficiently large completely untreated areas which may optionally be left separately for this purpose on the cigarette paper. In both cases, it can be assumed that these surfaces printed over the entire surface or surfaces which are completely untreated are representative of the whiteness or opacity of the printed or unprinted areas of the actual pattern.
- the opacity according to ISO 2471 of the cigarette paper without application of the composition is at most 90%, preferably at most 80%.
- these limits result in a particularly good effect, since in these the optical inhomogeneity due to the translucent tobacco strand is particularly pronounced.
- the opacity of the untreated cigarette paper should be at least 50%, because at lower opacities even by application of the inventive pattern a satisfactory appearance can be achieved only with difficulty.
- the ISO 2471 opacity of an area of the cigarette paper to which the composition is applied over the entire area is at least 80%, preferably at least 85% and particularly preferably at least 90%.
- the whiteness according to ISO 2470-1 of the cigarette paper without application of the composition is at least 80% and in particular between 80% and 95%. For these values of whiteness, particularly good results can also be achieved.
- the proportion of the printed area on the treated area according to the above definition is less than 80%, preferably less than 70% and particularly preferably less than 50%. Note that this ratio is an additional property of the pattern, which has independent meaning in addition to coarseness. In many cases it is advantageous, given coarseness, to favor those patterns in which the proportion of the printed area on the treated area is small in order to minimize the effect on the air permeability and the diffusion capacity of the paper.
- the proportion of the treated area on the total visible cigarette paper surface of the cigarette paper is preferably at least 20%, preferably at least 50% and particularly preferably at least 70%. In particularly preferred embodiments, however, the treated area will extend over the entire visible cigarette paper surface in order to achieve the desired effect on this.
- the composition comprises at least water as a solvent and a dye.
- the composition should be water-based, which means that it is in any case less than 10% by weight, preferably less than 5% by weight, of organic solvents on the weight of the composition.
- the composition may preferably be formed by a solution, a suspension or an emulsion.
- solvent is therefore not intended to indicate that the composition is a "solution” in the strict sense. In fact, even a suspension of the dye as a composition is preferred.
- the consequence of using a water-based composition is that after drying, no or at most very small amounts of organic solvent remain on the printed surface, preferably less than 0.5 mg / m 2 , particularly preferably less than 0.1 mg / m 2 , in each case based on the printed area.
- the solvent is alone formed by water.
- the advantage of organic solvents is that after application of the composition by heat usually with less energy expenditure can be removed than water, but remain on the cigarette paper small residual amounts of organic solvent, the aroma of the cigarette, especially directly after opening the Cigarette package, can affect.
- water is the preferred solvent.
- the dye it is possible to use all dyes which are suitable for producing in small quantities the desired white difference between printed and unprinted area. Above all, toxicological and legal aspects have to be considered. The lightfastness and possible bleeding of the dye in the presence of moisture may also be included in the selection.
- carbon particles of a medicinal coal are a particularly preferred dye, and equally preferred are black, water-soluble food dyes, which usually meet the legal requirements and are easier to disperse than medicinal carbon.
- An alternative for white cigarette paper are also organic dyes, for example Blue El 32, or inorganic pigment dyes.
- dyes are then used in the color on the cigarette paper, such as, for example, inorganic pigment dyes, for example iron oxides (El 72), organic dyes such as Blue El 32, Red El 23 or Red El 24 or mixtures thereof.
- inorganic pigment dyes for example iron oxides (El 72)
- organic dyes such as Blue El 32, Red El 23 or Red El 24 or mixtures thereof.
- the composition further comprises at least one binder, in particular one or more binders, which is selected from the group consisting of: cellulose derivatives; Starch and starch derivatives, in particular dextrins and maltodextrins; modified starch, especially oxidized starch, acetylated starch, or cationic starch; phosphated starch; guar; Gum arabic; Agar Agar; Sugar, in particular fructose; Mannoses, maltoses or molasses; Sugar alcohols, especially sorbitol or mannitol; polyvinyl alcohol; polyvinyl acetate; Gelatin; Carboxymethyl starch.
- binders which is selected from the group consisting of: cellulose derivatives; Starch and starch derivatives, in particular dextrins and maltodextrins; modified starch, especially oxidized starch, acetylated starch, or cationic starch; phosphated starch; guar; Gum arab
- At least 0.1% by weight, more preferably at least 0.3% by weight and / or at most 7.0% by weight, preferably at most 5.0% by weight of the composition is formed by the dye.
- the binder preferably at most 25.0% by weight of the composition, particularly preferably 1.0% by weight to 20.0% by weight, are formed by the binder.
- the binder and its amount can be used to adjust the viscosity of the composition required for the application process.
- the application amount of the composition is preferably at least 0.1 g / m,
- the basis weight of the cigarette paper is in the untreated state
- the invention shows particularly good effects in cigarette papers with comparatively low basis weights between 20 g / m 2 and 28 g / m 2 , in which the opacity in the untreated state is comparatively low and make the inhomogeneities in the opacity particularly noticeable.
- the cigarette paper further contains at least one inorganic, mineral filler, the paper to a mass fraction of at least 10 wt .-%, preferably at least 15 wt .-% and / or at most 45 wt .-%, preferably at most 35 wt .-% and particularly preferably at most 25 wt .-%, each based on the cigarette paper without application of the composition is added.
- a comparatively low filler content of, for example, 15% by weight to 25% by weight, in which the whiteness and opacity of the untreated cigarette paper are generally comparatively low, so that these cigarette papers become optical inhomogeneities in the tend initially described manner.
- the filler is preferably formed by calcium carbonate (lime) or other carbonates or oxides, in particular magnesium oxide, magnesium hydroxide or aluminum hydroxide or mixtures thereof.
- the cigarette paper preferably comprises substances which increase or decrease the simmering speed of the paper, in particular trisodium citrate, tripotassium citrate or mixtures thereof, but the proportion of these substances preferably does not exceed 5% by weight of the paper pulp.
- the air permeability of the treated area is at least 10 CU, preferably at least 20 CU and / or at most 150 CU, preferably at most 130 CU.
- air permeabilities are also common in conventional cigarette papers.
- an essential advantage of the invention is that such air permeabilities can be achieved even in the treated area, that is, despite order of the composition.
- the diffusion capacity of the treated area for C0 2 is at least 0.01 cm / s and / or at most 3.5 cm / s, preferably at most 3.0 cm / s. Again, these are conventional diffusion capacities, but they can also be achieved within the scope of the invention in the treated area.
- the invention relates to a method for producing a cigarette paper according to one of the embodiments described above.
- a water-based composition for forming said pattern is printed, preferably by gravure printing, offset or flexographic printing, or sprayed.
- the imprint in the gravure printing process is particularly well suited in terms of flexibility, speed and quality for the application of the composition in the process of the invention.
- the invention further relates to a cigarette comprising a tobacco rod and a cigarette paper according to one of the embodiments described above, which surrounds the tobacco rod.
- the proportion of the treated area on the visible cigarette paper surface is at least 20%, preferably at least 50% and particularly preferably at least 70%.
- the entire visible cigarette paper surface may be formed by a treated surface.
- the pattern is preferably repeated, and the circumference of the cigarette is an integer multiple of the repetition rate of the pattern in the circumferential direction. This ensures that the pattern also continues to be suitable in the region of the glue seam on which the cigarette paper overlaps itself, as a result of which the effect according to the invention is also achieved in the area of the glue seam of the cigarette paper.
- Fig. 1-6 show different patterns, which at a certain choice of geometric
- FIG. 7 shows a table summarizing the characteristic parameters a, b and optionally c, coarseness and coverage of 27 (inventive and noninventive examples) based on six different pattern types according to Figs. 1-6.
- Figs. 1-6 The inventors have tested the invention with reference to six different patterns shown in Figs. 1-6.
- parameters a, b and optionally c which represent the characteristic dimensions of the respective pattern.
- the coarseness can be calculated according to Tamura, as explained in the summary of the invention. It is also possible to calculate the "overlap" of the pattern, which is the percentage of printed area on the treated area, and is therefore expressed as a percentage Note that both coarseness and coverage are independent of whiteness ISO 2470-1 of the printed and unprinted area.
- Table 1 of FIG. 7 shows the coarseness and the coverage for different parameter values a, b and possibly c for the different patterns of FIGS. 1 to 6.
- Corresponding cigarette papers were produced in which the whiteness of the cigarette paper conforms to ISO 2470-1 between 80 and 90% and the opacity was between 70 and 80%.
- the whiteness of the fully printed area was about 40% less than that of the untreated area.
- the opacity of the printed area measured according to ISO 247-1 was always higher than the opacity of the untreated area.
- the visual impression that results for the human observer and to which it depends exclusively for the purposes of the invention is that the paper is more homogeneous for a large number of different patterns whose coarseness is less than 0.22 mm.
- the desired effect in the samples of Examples 1, 2, 3, 8, 9, 10, 15, 19, 22, 24 and 27 according to the table of Fig. 7 occurs particularly intense, while the inventive Effect with the patterns of Examples 4, 5, 6, 7, 1 1, 12, 13, 14, 17, 18, 20, 21, 23, 25 and 26 could hardly achieve.
- the reason for this is that the structures were too large and thus the unwanted inhomogeneities remained visible.
- the pattern 16 showed at least satisfactory results.
- the results can be expected to be further improved by the choice of a very low coarseness, in the production of samples with a coarseness below about 0.01-0.05 mm, the technological limits of some printing processes are encountered.
- inventive samples could be applied without substantially affecting the technical properties of the paper.
- a cigarette paper having a basis weight of 27 g / m 2 , a lime content of 28% by weight, a whiteness of 87%, an opacity of 75%, an air permeability of 72 CU and a diffusion capacity of 2.73 cm / s printed in a gravure printing an aqueous printing solution with 1, 5 wt .-% of sodium carboxymethylcellulose Blanose® MCF-7 and 1.40 wt .-% medicinal coal.
- the print pattern was selected from Table 1 according to Example 27. The pattern corresponds to the pattern of FIG. 1.
- the white of the printed area measured according to ISO 2470-1 on a separate, sufficiently large, fully printed area was 44.6%, ie 42.4% less than that of the untreated area.
- the opacity of the printed area measured according to ISO 2471 on the same area as for the whiteness, was 93.5% and was thus 18.5% higher than the opacity of the untreated area.
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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380046108.8A CN104603360B (zh) | 2012-09-05 | 2013-07-29 | 具有均匀视觉印象的卷烟纸 |
BR112015004659-2A BR112015004659B1 (pt) | 2012-09-05 | 2013-07-29 | Papel para cigarros com impressão visual homogênea, processo de produção e cigarro compreendendo o mesmo |
EP13742164.0A EP2761087B1 (de) | 2012-09-05 | 2013-07-29 | Zigarettenpapier mit homogenem optischen eindruck |
PL13742164T PL2761087T3 (pl) | 2012-09-05 | 2013-07-29 | Papier papierosowy sprawiający jednorodne wrażenie wizualne |
ES13742164.0T ES2536095T3 (es) | 2012-09-05 | 2013-07-29 | Papel para cigarrillos con impresión visual homogénea |
PH12015500426A PH12015500426A1 (en) | 2012-09-05 | 2015-02-26 | Cigarette paper with homogeneous visual impression |
US14/636,796 US9427021B2 (en) | 2012-09-05 | 2015-03-03 | Cigarette paper with homogeneous visual impression |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012108255.3 | 2012-09-05 | ||
DE102012108255.3A DE102012108255B4 (de) | 2012-09-05 | 2012-09-05 | Zigarettenpapier mit homogenem optischen Eindruck, Verfahren zu seiner Herstellung sowie Zigarette |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/636,796 Continuation US9427021B2 (en) | 2012-09-05 | 2015-03-03 | Cigarette paper with homogeneous visual impression |
Publications (2)
Publication Number | Publication Date |
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WO2014037073A1 true WO2014037073A1 (de) | 2014-03-13 |
WO2014037073A8 WO2014037073A8 (de) | 2014-05-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2013/002235 WO2014037073A1 (de) | 2012-09-05 | 2013-07-29 | Zigarettenpapier mit homogenem optischen eindruck |
Country Status (10)
Country | Link |
---|---|
US (1) | US9427021B2 (de) |
EP (1) | EP2761087B1 (de) |
CN (1) | CN104603360B (de) |
BR (1) | BR112015004659B1 (de) |
DE (1) | DE102012108255B4 (de) |
ES (1) | ES2536095T3 (de) |
MY (1) | MY171915A (de) |
PH (1) | PH12015500426A1 (de) |
PL (1) | PL2761087T3 (de) |
WO (1) | WO2014037073A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020229037A1 (de) * | 2019-05-15 | 2020-11-19 | Delfortgroup Ag | Umhüllungspapier mit gebrauchsindikator für aerosolerzeugende artikel |
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- 2013-07-29 ES ES13742164.0T patent/ES2536095T3/es active Active
- 2013-07-29 BR BR112015004659-2A patent/BR112015004659B1/pt active IP Right Grant
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WO2020229037A1 (de) * | 2019-05-15 | 2020-11-19 | Delfortgroup Ag | Umhüllungspapier mit gebrauchsindikator für aerosolerzeugende artikel |
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Also Published As
Publication number | Publication date |
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PH12015500426B1 (en) | 2015-04-20 |
WO2014037073A8 (de) | 2014-05-22 |
DE102012108255B4 (de) | 2014-03-20 |
DE102012108255A1 (de) | 2014-03-06 |
CN104603360A (zh) | 2015-05-06 |
BR112015004659A2 (pt) | 2017-07-04 |
US20150173416A1 (en) | 2015-06-25 |
CN104603360B (zh) | 2017-08-04 |
MY171915A (en) | 2019-11-06 |
US9427021B2 (en) | 2016-08-30 |
PH12015500426A1 (en) | 2015-04-20 |
ES2536095T3 (es) | 2015-05-20 |
BR112015004659B1 (pt) | 2022-02-15 |
EP2761087B1 (de) | 2015-03-18 |
PL2761087T3 (pl) | 2015-07-31 |
EP2761087A1 (de) | 2014-08-06 |
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