EP3283686A1 - Papier à cigarettes à teneur élevée en fibres courtes - Google Patents
Papier à cigarettes à teneur élevée en fibres courtesInfo
- Publication number
- EP3283686A1 EP3283686A1 EP16716021.7A EP16716021A EP3283686A1 EP 3283686 A1 EP3283686 A1 EP 3283686A1 EP 16716021 A EP16716021 A EP 16716021A EP 3283686 A1 EP3283686 A1 EP 3283686A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wrapping paper
- pulp
- paper according
- pulp fibers
- wrapping
- 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.)
- Granted
Links
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
- A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/005—Treatment of cigarette paper
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
Definitions
- the invention relates to a wrap-around paper for smoking articles. More particularly, it relates to a wrapping paper for smoking articles that can be produced by using a high proportion of short fiber pulp at a lower energy and cost than conventional papers for smoking articles, without worsening the essential technical properties. Furthermore, the invention relates to a smoking article comprising the wrapping paper according to the invention.
- a typical cigarette consists of a tobacco rod wrapped in a cigarette paper.
- cigarettes are also equipped with a filter, typically cellulose acetate, which is wrapped in a filter wrap paper and externally wrapped by a tipping paper that is slightly longer than the filter and thus joins the filter to the tobacco rod wrapped in the cigarette paper ,
- a filter typically cellulose acetate
- Alternative smoking articles do not burn the tobacco but only heat it, releasing an aerosol that is inhaled by the smoker. It is believed that the aerosol of such smoking articles contains less harmful substances than the smoke of conventional cigarettes. Instead of tobacco, other aerosol generating materials can be used. Depending on the design of these smoking articles, such wrappers may also require a wrapping paper which wraps around the tobacco or aerosol generating material or other parts of the smoking article.
- wrapping papers for smoking articles to make many technical requirements, in particular with regard to the air permeability, the diffusion capacity, but also with respect to optical requirements such as whiteness, color and opacity.
- optical requirements such as whiteness, color and opacity.
- the selection of possible raw materials for such wrapping papers are often subject to legal restrictions, and therefore the manufacturer of such wrapping papers is limited in the design of the wrapping paper.
- Wrapping papers for smoking articles typically contain pulp fibers. These pulp fibers are ground in milling units during the production of the wrapping paper. This means that the individual fibers or fibrils of the pulp fiber bundles are exposed by mechanical stress on the pulp fibers. As a result, a larger surface area and more options are available that connect the individual pulp fibers to one another in the papermaking process by means of hydrogen bonds. This gives the paper its tensile strength, but also affects the air permeability. In general, a more intensive grinding of the pulp fibers leads to a higher tensile strength of the paper but a lower air permeability. This grinding process is very energy intensive and therefore expensive.
- Pulp fibers are distinguished between long fiber pulp, which is typically obtained from coniferous trees such as spruce, pine or larch, and short fiber pulp typically obtained from deciduous trees such as beech, birch, eucalyptus, poplar or aspen.
- long-fiber pulp is more expensive than short-fiber pulp and must be ground with greater energy expenditure than short-fiber pulp.
- short fiber pulp is generally used unground.
- pulp fibers for wrapping papers for smoking articles are pulp fibers that are not derived from trees, such as flax, hemp, sisal, abaca, jute or cotton. Due to their length and tensile strength, these pulp fibers can replace the long-fiber pulp with respect to their technical effect in the wrapping paper, but are once again considerably more expensive than long-fiber pulp.
- pulp fibers for wrapping papers for smoking articles are pulp fibers derived from esparto grass. These pulp fibers give you a Umhüilungspapier more volume and lower density and can be used in their technical effect in the wrapping paper as an alternative to short fiber pulp.
- wrapping papers for smoking articles must contain long fiber pulp or pulp fibers of comparable technical effect so that the wrapping paper has sufficient tensile strength for the manual or automated manufacture of smoking articles.
- the proportion of long fiber pulp in the total pulp in wrapping papers for smoking articles according to the prior art is at least 20% and typically between 25% and 70%. This makes the production of wrapping papers for smoking articles expensive.
- the wrapping paper according to the invention has a basis weight of at least 10 g / m 2 and at most 70 g / m 2 and comprises a mixture of pulp fibers.
- the inventors have surprisingly found that the object can be achieved by a wrapping paper for smoking articles whose mixture of cellulose fibers with respect to the mass of cellulose fibers in the cell at least 90% by short fiber pulp fibers, or based on the number of pulp fibers at least 95% is formed by short fiber pulp fibers, wherein at least 10% of short fiber pulp fibers are ground based on the mass, or number of pulp fibers of the pulp fiber mixture.
- the wrapping paper according to the invention can have sufficient tensile strength without the need for an additional coating to increase the tensile strength.
- the cigarette paper may well be coated in certain portions or be, for example, to lower the diffusion capacity and thus impart self-extinguishing properties to a cigarette made from the wrapping paper.
- the base paper ie the wrapping paper without such coatings, has an air permeability of at least 30 cm 3 (cm 2 -min-kPa).
- the wrapping paper of the invention has an air permeability of at least 30 cm 3 (cm 2) over more than 50% of its area, preferably at least 55% of its area, and most preferably at least 60% of its area.
- the wrapping paper contains at least one Brandsalz. This ensures that the wrapping paper according to the invention, when used for a conventional tobacco cigarette, causes a good appearance of the ashes, and has no disadvantages in this respect compared to conventional cigarette papers, even if the wrapping paper, as in some preferred embodiments, a comparatively small Has a proportion of fillers. In particular, it can be avoided that the glaze cone migrates appreciably under the wrapping paper, which would cause an undesirable visual impression.
- the wrapping paper of the present invention can achieve sufficient tensile strengths even if it is not coated with an additional coating for reinforcing the tensile strength. In a preferred embodiment, therefore, the wrapping paper is free of an additional coating. However, in other embodiments, it may have coated areas, such as those used for self-extinguishment, but these preferably account for less than 50%, more preferably less than 45%, and most preferably less than 40%, of the total area of the wrapping paper.
- the pulp mixture in the wrapping paper is preferably designed so that its fibers have an average length of at most 2.0 mm and at least 0.1 mm.
- the average length of the fibers in the finished wrapping paper is at most 1.5 mm and most preferably at most 1.2 mm and in particular at most 1.0 mm.
- the fraction of the short fiber pulp must be at least 90% or at least 95% based on the number of fibers in the pulp mixture, as described above, based on the mass of the fibers in the pulp mixture in the wrapping paper according to the invention. But you can try, as far as the requirements for the tensile strength of the wrapping paper allow to choose the proportion of short fiber pulp as high as possible, so it is based on the mass preferably 95% and based on the mass or number particularly preferably 100%, so so in Essentially, the entire pulp mixture is formed by short fiber pulp.
- the percentages with regard to the mass or number of short fiber pulp fibers are to be interpreted taking into account typical tolerances in the purity of the pulps and in the production of the wrapping paper.
- the proportion of ground short fiber pulp fibers is at least 20%, more preferably at least 30% and / or at most 100%, particularly preferably at most 80%, in particular at most 70%.
- the freeness of the milled short fiber pulp according to ISO 5267-1: 1999 is at least 20 ° SR, more preferably at least 30 ° SR and / or at most 85 ° SR, most preferably at most 80 ° SR.
- the person skilled in the art can optimize the energy expenditure in order to obtain a sufficient tensile strength of the wrapping paper, for example by using short but intensively ground short fiber pulp or a lot of but slightly ground short fiber pulp.
- the freeness of the pulp mixture is important, ie the mixture of ground short fiber pulp, unground short fiber pulp, if present, and, optionally, other pulps.
- the freeness describes the rate at which an aqueous fiber suspension can be dewatered, and therefore influences not only the tensile strength of the wrapping paper but also the maximum speed of the paper machine in the production of the wrapping paper and thus indirectly the cost of production.
- a low value for the degree of grinding means rapid dewatering of the fiber suspension and vice versa. In general, therefore, one will try to choose the freeness of the pulp fiber mixture as low as possible.
- the freeness of the pulp mixture in the finished wrapping paper is at least 20 ° SR and more preferably at least 30 ° SR and most preferably at least 40 ° SR and / or at most 70 ° SR and more preferably at most 60 ° SR.
- the short fiber pulp for the wrapping paper according to the invention may preferably be obtained from deciduous trees, more preferably from birch, beech, eucalyptus, poplar or aspen, and most preferably from birch or eucalyptus. Mixtures of short fiber cell materials of various origins can be used. The use of short fiber pulp of esparto grass, in whole or in part, is possible according to the invention, but is not preferred because of the low availability and the higher price.
- the wrapping paper according to the invention may contain, in addition to short fiber pulp, other cell substances, but their amount, as described above, not more than 10% and preferably not more than 5% relative to the mass of the pulp fibers in the pulp mixture or at most 5%, based on the number of pulp fibers in the pulp mixture, preferably not more than 2%.
- said other pulps may be formed by pulps derived from conifers, more preferably from spruce, pine or larch.
- pulp fibers obtained, for example, from flax, hemp, sisal, abaca, jute or cotton. These fibers can be unground, but preferably ground, used, for example, to give the wrapping material a particularly high strength.
- regenerated cellulose fibers such as lyocell fibers, such as Tencel®, viscose fibers or modal fibers.
- lyocell fibers such as Tencel®
- viscose fibers or modal fibers may be useful for technical reasons, but is not preferred for the present invention because of the price of these fibers.
- the smoking article wrapping paper of the present invention has a basis weight of at least 10 g / m 2 and at most 70 g / m 2 .
- the expert in the choice of basis weight will seek a balance between tensile strength, opacity and whiteness as well as cost and taste influence. As the basis weight increases, tensile strength, opacity and whiteness generally increase, but the higher weight of wrapping paper also increases the flavor impact on the smoking article and material costs.
- the basis weight of the wrapping paper according to the invention is preferably at least 20 g / m 2 , more preferably at least 25 g / m 2 and / or at most 60 g / m 2 , more preferably at most 40 g / m 2 .
- the basis weight of the wrapping paper can be determined according to ISO 536: 2012.
- the wrapping paper according to the invention may contain fillers.
- Preferred fillers are oxides, hydroxides, carbonates and silicates, particularly preferably oxides, hydroxides, carbonates and silicates of metals, very particularly preferably calcium carbonate, magnesium oxide, magnesium hydroxide, magnesium carbonate and aluminum hydroxide.
- a particularly preferred filler is precipitated calcium carbonate because of its high purity.
- fillers are generally cheaper than pulp and, in addition, may increase the opacity and whiteness of the wrapping paper, those skilled in the art will seek to select the highest possible filler content in the wrapping paper. However, the fillers also reduce the tensile strength of the wrapping paper and, therefore, those skilled in the art, especially if the proportion of ground short fiber pulp is low, should not choose the filler content arbitrarily high.
- the wrapping paper according to the invention contains at most 45% by weight of filler, more preferably at most 40% by weight and most preferably at most 35% by weight, based in each case on the weight of the wrapping paper Smoking article is used.
- the wrapping paper according to the invention can be produced completely without or with very little filler, but the filler content is preferably at least 10% by weight, more preferably at least 15% by weight, even more preferably at least 20% by weight.
- the wrapping paper according to the invention also contains at least one fire salt, which can increase or reduce the smoldering speed of the smoking article or improve the appearance of the ashes of the burnt tobacco together with the burnt wrapping paper .
- the wrapping paper therefore comprises one or more brominated salts selected from the group consisting of citrates, malates, tartrates, acetates, nitrates, succinates, fumarates, gluconates, glycates, lactates, oxylates, salicylates, ⁇ -hydroxycaprylates, phosphates and Bicarbonates, preferably selected from the group consisting of trisodium citrate and tripotassium citrate.
- the content of brominated salts in the wrapping paper according to the invention is preferably at least 0.5% by weight, more preferably at least 0.7% by weight, very preferably at least 1.0% by weight and / or at most 7.0% by weight. %, more preferably at most 5.0 wt .-% and most preferably 3.0 wt .-%.
- the content of Brandsalzen can, for example, for acetates according to CORESTA Recommended Method no. 33 (January 1993) and based on anhydrous acetic acid.
- the measurement may be carried out according to CORESTA Recommended Method No. 34 (January 1993), the content being given in% by weight, based on the monohydrate of the citric acid.
- For phosphates the content may be CORESTA Recommended Method No. 45 (January 1998) and are given in relation to the phosphate ions (P0 4 3 ⁇ ).
- tensile strength and elongation at break of the wrapping paper in particular the tensile strength and elongation at break in the machine direction. They can be determined according to ISO 1924-2: 2008. A paper strip with a width of 15 mm is stretched at a constant speed until it breaks and the maximum force is measured. This force is the tensile strength and is expressed in N / 15 mm. The elongation at which it falters is the elongation at break, and is expressed as a percentage of the length of the unloaded paper sample.
- machine processing of the wrapping paper into smoking articles requires a machine direction tensile strength of at least about 9 N / 15 mm and a machine-to-machine elongation at break of at least about 1.0%.
- a preferred smoking article wrapping paper according to the invention therefore has a machine direction tensile strength according to ISO 1924-2: 2008 of at least 10 N / 15 mm and more preferably at least 12 N / 15 mm.
- An upper limit for the machine direction tensile strength is preferably 30 N / 15 mm, more preferably 25 N / 15 mm, and most preferably 20 N / 15 mm.
- a preferred wrapping paper for smoking articles according to the invention has a machine direction breaking elongation according to ISO 1924-2: 2008 of at least 0.9%, and more preferably at least 1.0%.
- the elongation at break in the machine direction according to ISO 1924-2: 2008 is preferably at most 5.0%, more preferably at most 3.0% and most preferably at most 2.5%.
- the air permeability may affect the contents of the smoke or aerosol of a smoking article by allowing the passage of air through the cigarette paper into the smoking article and thus replacing some of the smoke or aerosol in the smoking article with air.
- the air permeability can affect the content of tar, nicotine and carbon monoxide in the smoke of a cigarette.
- the air permeability of known, naturally porous wrapping papers for smoking articles is typically between 10 cm 3 / (cm 2 -min-kPa) and 300 cm 3 / (cm 2 -min-kPa), whereby the air permeability can be increased by perforation, for example up to 10000 cm 3 / (cm 2 -min-kPa).
- Envelope papers having an air permeability of less than 10 cm 3 / (cm 2 min-kPa) are also known. Such wrapping papers are mainly used for manually made smoking articles (Roll-Your-Own).
- the air permeability of the wrapping paper according to the invention in untreated areas is at least 30 cm 3 / (cm 2 -min-kPa), but preferably at least 50 cm 3 / (cm 2 -min-kPa) and particularly preferably at least 70 cm 3 / ( cm 2 -min-kPa). If the wrapping material according to the invention has a low basis weight and the short fiber pulp is only slightly ground, particularly high air permeabilities can be achieved.
- the air permeability is preferably at most 10000 cm 3 / (cm 2 -min-kPa), more preferably at most 5000 cm 3 / (cm 2 -min-kPa), and most preferably at most 500 cm 3 / (cm 2 -min-kPa ) in order to simultaneously allow a favorable for further processing tensile strength, which is difficult to reconcile with extremely air-permeable papers.
- the diffusion capacity determines the transport of gases through the wrapping paper according to a concentration difference. Especially at the stages of consumption of a smoking article where there is no pressure differential between the two sides of the wrapping paper, gases such as carbon monoxide can diffuse through the wrapping paper. Thus, for example, the content of carbon monoxide in the smoke or aerosol of a smoking article can be influenced.
- the diffusion capacity of a wrapping paper for carbon dioxide in nitrogen can be determined according to CORESTA Recommended Method no. 77 (April 2014) and is expressed in cm / s.
- air permeability and diffusion capacity can not be chosen completely independently of each other.
- the diffusion capacity in untreated areas is at least 0.1 cm / s, more preferably at least 1.0 cm / s and / or at most 5.0 cm / s, particularly preferably at most 4.0 cm / s.
- the wrapping paper may have patterns resulting from compression of the wrapping paper. These can be, for example, the so-called limescale. In the area of these lines, the paper is compressed and therefore more transparent. Lines may be applied in the machine direction of the wrapping paper, in the transverse direction of the wrapping paper or in any other direction. In addition to a line pattern, any other patterns can be applied.
- the wrapping paper may contain watermarks in any form.
- the wrapping paper may include other substances known in the art for the manufacture of smoking article wrapping papers. These may include, for example, inorganic pigments, for example iron oxides, or organic dyes, which impart a certain color to the coating material. It may also contain flavorings that affect the smell or taste of the smoke or aerosol of the smoking article. This may be either the smoke or aerosol inhaled by the consumer of the smoking article, as well as the smoke or aerosol released from the smoking article without being inhaled by the consumer of the smoking article, in particular the sidestream smoke of a cigarette. Such flavorings may also be associated with physical carriers, such as by encapsulation, for example, in cyclodextrin or polymers. Likewise, the aromatic substances may be chemically bound, for example in ethyl vanillin glucoside.
- the wrapping paper may also have additional areas of reduced diffusion capacity that may be used to self-extinguish the smoking article, for example, to meet regulatory requirements for self-extinguishing.
- Additional areas of reduced diffusion capacity can be generated according to the prior art by the application of film-forming substances, but also by other methods such as embossing.
- the wrapping paper may be perforated to increase the air permeability and, in particular, to increase the air permeability without appreciably affecting the diffusion capacity.
- the methods known from the prior art such as mechanical perforation, electrostatic perforation, laser perforation and plasma perforation can be used.
- the wrapping paper may be printed, for example, to give it an attractive external appearance or other special effects, such as temperature-dependent color changes. In this case, printing methods such as gravure, Flexodmck, offset printing or screen printing but also spraying can be used. There are no restrictions on the printed pattern.
- any further process steps known from the current or future state of the art can also be used be carried out with the wrapping paper according to the invention, provided that they can also be carried out with conventional wrapping papers for smoking articles.
- the production of the wrapping paper according to the invention can be carried out according to the methods known from the prior art for papermaking.
- the pulp mixture can first be suspended in water in one or more containers and then the entire or a part of the pulp mixture can be ground in milling units. After grinding, it is possible to add further substances, for example fillers, pigments, dyes or process auxiliaries, for example retention aids.
- the wrapping paper can then be produced on a conventional paper machine, for example a Fourdrinier paper machine.
- an aqueous suspension of pulp fibers and optional fillers and other materials from a headbox flows onto the wire of the paper machine and can be dewatered there by gravity or vacuum, wherein a wrapping paper web is formed from the suspension.
- the wrapping paper web passes through a press section in which the wrapping paper web is further dewatered by mechanical pressure between rollers and a press felt.
- the wrapping paper web can still pass through a dryer section where residual water is removed by contact with heated drying cylinders, hot air, infrared radiation or microwaves such that the wrapping paper web has its equilibrium moisture content of about 4-8% by weight based on the weight of the finished wrapping paper.
- the wrapping paper web can be rolled up.
- the dryer section there may be a film press or size press in which substances for influencing the surface of the wrapping paper are applied to one or both sides of the wrapping paper. These substances may be, for example, pigments such as iron oxides, dyes, binders such as starch or carboxymethyl cellulose or fillers such as calcium carbonate.
- a smoking article according to the invention comprises a strand of tobacco or other material which forms smoke or an aerosol upon combustion or heating. According to the invention, this strand is enveloped by the wrapping material according to the invention in order to form a smoking article.
- the smoking article may further include a filter that is connected to the wrapped strand, for example, by tipping paper.
- the smoking article is a cigarette, and more preferably a filter cigarette.
- the manufacture of the smoking article can be done manually, partially by machine or completely by machine according to the methods known from the prior art.
- Birch pulp and eucalyptus pulp were chosen as short fiber pulps for the wrapping paper of the present invention.
- the filler used was precipitated calcium carbonate.
- Table 1 shows 11 different fiber / filler compositions from which exemplary wrapping papers were made.
- the fiber / filler composition is characterized by the proportions of ground birch pulp ("Birch Ground” column), unmilled birch pulp ("Unmilled Birch” column), unground eucalyptus pulp (“Eucalyptus unground” column) and filler ("Filler” column)
- the percentages for the milled and unmilled birch and eucalyptus pulp are based on the mass of the whole pulp mixture, whereas the percentage of the filler in percent refers to the mass of the finished wrapping paper ISO 5267-1: 1999 in Schopper-Riegler (° SR).
- compositions 4-6 and 10 additionally contained precipitated calcium carbonate ("lime”) as a filler
- lime precipitated calcium carbonate
- the ground birch pulp was milled to freenesses between 30 ° SR and 79 ° SR
- a significant advantage of the invention is already evident, as for the grinding of the Birch pulp based on the mass always about half of the grinding energy of conventional long-fiber pulp has been spent .This results in a significant saving of grinding energy.
- compositions in Table 1 are extremes in terms of grind, filler content and levels of ground and unground short fiber pulp for the design of a wrapping paper so that those skilled in the art of designing a smoking article wrapping paper of the present invention will preferentially choose values between these extremes.
- the fiber length distribution of the milled birch pulp was measured several times using a Fiber Tester code 912, type 987666, from Lorentzen & Wettre according to the manufacturer's specifications, and an average fiber length between 0.8 and 1.0 mm was obtained.
- the milled birch pulp was mixed together with the unmilled birch pulp or the unground eucalyptus pulp according to the mixing ratios according to Table 1 in an aqueous suspension.
- the filler was added to the suspension in an appropriate amount, and leaves were formed from the suspension on a laboratory sheet former and dried. A total of 14 wrapping papers were produced, the data of which are given in Table 2.
- Table 2 shows 14 exemplary embodiments according to the invention AN ("Example” column), one of the fiber / filler suspensions from Table 1 being used for each exemplary embodiment and the assignment being made via the "Composition No.” column. from Table 2. The numbers entered in it correspond to the numbers from the column “No.” from Table 1. After conditioning the leaves according to ISO 187 at 23 ° C and 50% relative humidity, various measurements were made on the leaves, the results of which are given in Table 2.
- the basis weight was measured according to ISO 536: 2012 and the results are given in the column “basis weight.”
- the tensile strength and elongation at break were measured according to ISO 1924-2: 2008 and are given in the columns “tensile strength” and “elongation at break” was measured according to ISO 2965: 2009 and is given in the column “Air permeability”.
- the air permeabilities of Examples AC are at 4900 cm 3 / (cm 2 -min-kPa) to 7500 cm 3 / (cm 2 -min-kPa) very high for conventional wrapping papers of smoking articles, by increasing the basis weight, the grinding energy or fraction on milled birch pulp or by selection of another short fiber pulp, the air permeability can be reduced if necessary.
- the diffusion capacities of the wrapping papers of Examples AC are also high, which can reduce the content of carbon monoxide in the smoke of a smoking article made therefrom.
- the tensile strength was not measured because the composition of the wrapping papers of Examples DF is the same as for Examples AC and because of the higher basis weight, a significant increase in tensile strength is expected, so that the values are well above 12 N / 15 mm, the highest Value of examples AC, will be.
- the wrapping papers of Examples GN contain milled birch pulp and unground eucalyptus pulp and in Examples G, H, I and M also filler.
- the weights per square meter range from 23 g / m 2 to 37 g / m 2 for conventional wrapping paper used in smoking articles.
- Examples G and H are just within an acceptable range in terms of tensile strength of 5 N / 15 mm and 6 N / 15 mm, respectively. From these examples it can be seen that by low milling of the birch pulp and a high content of filler of 36.5% (Example G) and 39.3% (Example H), the tensile strength of the wrapping paper is reduced.
- Example I the filler content is even higher at 43%, but the birch pulp is also ground to a higher freeness of 71 ° SR. This achieves a tensile strength of 8 N / 15 mm, which can be sufficient for further machine processing of the wrapping paper, but in any case is sufficient for wrapping paper for manually produced smoking articles.
- the elongation at break was also measured. It shows values of 0.9% to 2.8%, which is sufficient for a mechanical further processing of the wrapping papers anyway.
- the air permeabilities of the wrapping papers of Examples GN are in the range of 75 cm 3 / (cm 2 'min-kPa) to 1240 cm 7 (cm 2 -min-kPa), thus well covering the usual range for wrapping papers of smoking articles.
- the described wrapping papers can be used to make a smoking article, for example, by using the wrapping papers to wrap around a tobacco rod or other material that releases an aerosol upon heating or combustion. Because all of the essential properties of the wrap-around papers of Examples A-N are in a typical range for smoking article wrappers, the manufacturing processes for making the smoking article do not differ from those known in the art. For this reason, an illustration of methods for producing corresponding smoking articles in the present description is omitted.
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16716021.7T PL3283686T5 (pl) | 2015-04-17 | 2016-04-07 | Bibułka papierosowa o wysokim udziale włókien krótkich |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015105882.0A DE102015105882B4 (de) | 2015-04-17 | 2015-04-17 | Umhüllungspapier mit hohem Kurzfaseranteil und Rauchartikel |
PCT/EP2016/057648 WO2016166012A1 (fr) | 2015-04-17 | 2016-04-07 | Papier à cigarettes à teneur élevée en fibres courtes |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3283686A1 true EP3283686A1 (fr) | 2018-02-21 |
EP3283686B1 EP3283686B1 (fr) | 2020-01-01 |
EP3283686B2 EP3283686B2 (fr) | 2022-12-14 |
Family
ID=55750383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16716021.7A Active EP3283686B2 (fr) | 2015-04-17 | 2016-04-07 | Papier à cigarettes à teneur élevée en fibres courtes |
Country Status (9)
Country | Link |
---|---|
US (1) | US10405573B2 (fr) |
EP (1) | EP3283686B2 (fr) |
CN (1) | CN107438370B (fr) |
BR (1) | BR112017021346B1 (fr) |
DE (1) | DE102015105882B4 (fr) |
ES (1) | ES2779580T5 (fr) |
PH (1) | PH12017501776A1 (fr) |
PL (1) | PL3283686T5 (fr) |
WO (1) | WO2016166012A1 (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3041374B1 (fr) * | 2013-09-05 | 2019-12-18 | Schweitzer-Mauduit International, Inc. | Papier pour filtre revêtu pour un article à fumer |
US11214925B2 (en) | 2015-08-21 | 2022-01-04 | Pulmac Systems International, Inc. | Method of preparing recycled cellulosic fibers to improve paper production |
US10941520B2 (en) * | 2015-08-21 | 2021-03-09 | Pulmac Systems International, Inc. | Fractionating and refining system for engineering fibers to improve paper production |
US10041209B1 (en) * | 2015-08-21 | 2018-08-07 | Pulmac Systems International, Inc. | System for engineering fibers to improve paper production |
CN106666817B (zh) * | 2017-01-07 | 2018-03-09 | 云南中烟工业有限责任公司 | 一种内表面起皱卷烟纸 |
KR102598360B1 (ko) * | 2018-07-02 | 2023-11-06 | 니뽄 다바코 산교 가부시키가이샤 | 비연소 가열형 흡연 물품용 권지, 비연소 가열형 흡연 물품 및 전기 가열형 흡연 시스템 |
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-
2015
- 2015-04-17 DE DE102015105882.0A patent/DE102015105882B4/de active Active
-
2016
- 2016-04-07 EP EP16716021.7A patent/EP3283686B2/fr active Active
- 2016-04-07 ES ES16716021T patent/ES2779580T5/es active Active
- 2016-04-07 BR BR112017021346-0A patent/BR112017021346B1/pt active IP Right Grant
- 2016-04-07 US US15/567,100 patent/US10405573B2/en active Active
- 2016-04-07 PL PL16716021.7T patent/PL3283686T5/pl unknown
- 2016-04-07 CN CN201680021634.2A patent/CN107438370B/zh active Active
- 2016-04-07 WO PCT/EP2016/057648 patent/WO2016166012A1/fr active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
PL3283686T3 (pl) | 2020-05-18 |
PH12017501776B1 (en) | 2018-03-19 |
EP3283686B2 (fr) | 2022-12-14 |
CN107438370B (zh) | 2020-12-08 |
US20180092397A1 (en) | 2018-04-05 |
BR112017021346B1 (pt) | 2022-06-14 |
ES2779580T5 (es) | 2023-02-14 |
BR112017021346A2 (pt) | 2018-06-26 |
WO2016166012A1 (fr) | 2016-10-20 |
PL3283686T5 (pl) | 2023-03-27 |
CN107438370A (zh) | 2017-12-05 |
ES2779580T3 (es) | 2020-08-18 |
DE102015105882B4 (de) | 2017-06-08 |
PH12017501776A1 (en) | 2018-03-19 |
US10405573B2 (en) | 2019-09-10 |
DE102015105882A1 (de) | 2016-10-20 |
EP3283686B1 (fr) | 2020-01-01 |
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