EP0016333A2 - Process for the manufacture of a filter rod out of which individual cigarette filters are produced - Google Patents
Process for the manufacture of a filter rod out of which individual cigarette filters are produced Download PDFInfo
- Publication number
- EP0016333A2 EP0016333A2 EP80100685A EP80100685A EP0016333A2 EP 0016333 A2 EP0016333 A2 EP 0016333A2 EP 80100685 A EP80100685 A EP 80100685A EP 80100685 A EP80100685 A EP 80100685A EP 0016333 A2 EP0016333 A2 EP 0016333A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- cellulose acetate
- wrapping film
- manufacture
- produced
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- A24C5/56—Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical means
Definitions
- the invention relates to a method for producing a filter rod from which individual filters for cigarettes are obtained, consisting of a filter material (material) - this consisting of a cellulose acetate rope, mixed with a plasticizer - with a filter wrapping film.
- DE-OS 2 251 525 individual filters for filter cigarettes in this way that synthetic fibers or threads, in particular cellulose acetate threads, mixed with a solvent (plasticizer) or melted by heat, are formed into an endless filter strand, which is covered by a filter wrapping paper, which is glued to the filter strand, either pure or serve as plasticizers Solvents like Triacetin, triethylene glycol diacetate or glycols according to 5.) US Pat. No.
- the plasticizer or the plasticizer is applied to the filter material, for example in US Pat. No. 3,306,254, before the continuous filter strand is enclosed by the filter wrapping paper.
- the endless filter strand can also be made from fluffy material. Such a method is described in 10.) U S -PS 3.366.521. Other materials, such as paper strips, can also be inserted into the endless filter strand as in No. 11) US Pat. No. 3,426,764.
- the bonding of the continuous filter strand with the filter wrapper paper in a conventional manner by using a glue, hard-melt adhesive or a solution of cellulose acetate in triacetin or triethylene lykoldiacetat g is applied to the filter wrapping paper. Filter rods are then first produced from such a filter strand and from this individual filter for the cigarettes.
- the invention has for its object to simplify and cheapen the manufacturing process of the filter train.
- the invention consists in that cellulose acetate is added in the production of the filter covering film. It is particularly advantageous to proceed in such a way that thaw waste and / or filter strand weft (waste) and / or cigarette filter weft (waste) is used in the production of the filter wrapping film.
- the object is achieved in a particularly simple and advantageous manner.
- the addition of cellulose acetate in the manufacture of the filter wrapping film ensures that it is glued to the filter material, which consists of a cellulose acetate dew mixed with a plasticizer, without additional application of glue, hard-melt adhesive or a solution of cellulose acetate in Triacetin or triethylene glycol diacetate. This avoids an additional operation and the associated costs and thus ver the entire manufacturing process approves.
- the method according to the invention can, according to the further proposal of the invention, be made considerably cheaper by using thaw waste and / or filter strand weft (waste) and / or cigarette filter weft (waste) in the manufacture of the filter wrapping film.
- This also eliminates the cost of procuring cellulose acetate.
- waste or rejects also sometimes called "weft"
- This amount of rejects is sufficient to be able to successfully carry out the method according to the invention, even without additional procurement of cellulose acetate.
- Another advantage of using a continuous filter section or cigarette filter section is that the repeated use of the method according to the invention reduces the paper content of the filter wrapping film to a minimum, so that in practice a paper-free filter wrapping film can be obtained. If only thaw waste is used, the filter wrapping film is effectively paper-free. Furthermore, due to the more uniform gluing of rope and filter wrapping film, gluing of rope and filter wrapping film, the resulting filter rod is generally harder than a comparison rod, in which the filter wrapping paper is applied in a conventional manner of glue, hard-melt adhesive or a solution of cellulose acetate in triacetin or triethylene glycol diacetate is glued with a rope. However, a higher hardness of the filter rods represents an improvement in quality, which is positive both for further processing and for the end product, filter cigarette.
- Cellulose acetate dust was used to make the filter wrapping film.
- the acetate dust was taken from the waste from the thawing process.
- the average grain size of the individual fibers (dust particles) was 0.003 mm.
- the filter wrap film was produced, the proportion of the cellulose Acetatstaubs between 30% and 70% was varied.
- Other components of the pulp from which the filter wrapping film was made in the fire process were calcium carbonate, potash and cellulose.
- the air permeability of the filter wrapping films was varied such that both air-impermeable filter wrapping films and those with air permeability up to 1600 cm / min: kPa (measured according to draft DIN 20 247) occurred.
- the starting material for another production of the filter wrapping film according to the invention was cellulose acetate fibers, which were obtained by finely cutting acetate dew waste.
- the filter wrapping film is produced in the same way as in Example 1.
- the mean fiber length of the acetate fibers in this fold was 0.017 mm. It is not advisable to choose too large cutting lengths, since the resulting higher surface roughness of the filter wrapping film produced during filter production would accelerate the wear of the machines due to increased abrasion.
- Filter strand shot as is usually produced in the manufacture of acetate filters, in particular when starting up the machines, served as the starting material for another test of the filter wrapping film according to the invention.
- the waste material was first cut to three different cutting widths on a cutting machine, as is also used for cutting tobacco - (referred to as “fine”, “medium” and “coarse”).
- Filter wrapping films according to the invention were produced from these materials. Since the filter wrapping film is exposed to strong tensile stress during processing, it is advisable to operate the film production in such a way that the breaking loads are not too low.
- the filter wrapping films produced for the test described here had the following breaking loads:
- the technological properties of the filter wrapping film were then tested in a long-term test on the filter manufacturing machine.
- a filter wrapping film was used, which, as already described, was produced from a filter strand shot.
- the cellulose acetate content was 30%
- the weight per unit area of this filter wrapping film was 30 + 1.5 g / m 2
- the breaking load was greater than 28 N
- the longitudinal elongation was 1.5 + 0.5% (measured according to DIN 53 112 ).
- the technological properties of the filter wrapping film proved to be clearly superior to the conventional technology, in which filter wrapping paper was glued to the rope with glue.
- the filter rods produced were distinguished by a 25% greater hardness compared to the comparison filter rods, due to the better connection of rope and filter wrapping film.
- a further development according to the invention is to be seen in the fact that a proportion of 30% to 70% cellulose acetate is added to the production of the filter covering film.
- a further development according to the invention can also be seen in the fact that, in addition to cellulose acetate, 70% to 30% of pulp are added.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur-Herstellung eines Filterstranges, aus dem Einzelfilter für Zigaretten gewonnen werden, bestehend aus einem Filterstoff (-material) - dieser bestehend aus einem Celluloseacetat-Tau,versetzt mit einem Weichmacher - mit Filterumhüllungsfolie.The invention relates to a method for producing a filter rod from which individual filters for cigarettes are obtained, consisting of a filter material (material) - this consisting of a cellulose acetate rope, mixed with a plasticizer - with a filter wrapping film.
Es ist üblich, wie in den DE-PSen 1.) 1 o28 926, 2.) 1 032 693, 3.) 1 o47 o96 und 4.) DE-OS 2 251 525 ausführlich geschildert wird, Einzelfilter für Filterzigaretten in der Weise herzustellen, dass synthetische Fasern oder Fäden, insbesondere Celluloseacetatfäden mit einem Lösungsmittel (Weichmacher) versetzt oder durch Hitze verschmolzen, zu einem Endlos-Filterstrang geformt werden, der von einem Filterumhüllungspapier, welches mit dem Filterstrang verklebt ist, umhüllt wird.Als Weichmacher dienen entweder reine Lösungsmittel wie Triacetin, Triäthylenglykoldiacetat oder Glykole gemäss 5.) US-PS 3.393.684 beziehungsweise Diglycerinverbindungen gemäss 6.) DE-AS 23 41 685 sowie Ketosäureester gemäss der 7.) DE-AS 23 62 701 oder aber Mischungen dieser Verbindungen auch mit anderen Substanzen, wie es beispielsweise in der 8.) DE-AS 1 082 542 beschrieben wird.It is customary, as detailed in DE-PS 1) 1 028 926, 2) 1 032 693, 3) 1 047 096 and 4.) DE-OS 2 251 525, individual filters for filter cigarettes in this way that synthetic fibers or threads, in particular cellulose acetate threads, mixed with a solvent (plasticizer) or melted by heat, are formed into an endless filter strand, which is covered by a filter wrapping paper, which is glued to the filter strand, either pure or serve as plasticizers Solvents like Triacetin, triethylene glycol diacetate or glycols according to 5.) US Pat. No. 3,393,684 or diglycerol compounds according to 6.) DE-AS 23 41 685 and keto acid esters according to 7.) DE-AS 23 62 701 or mixtures of these compounds also with other substances, as described for example in the 8th) DE-AS 1 082 542.
Die Weichmacher beziehungsweise der Weichmacher wird, wie zum Beispiel in der 9.) US-PS 3.306.254, auf das Filtermaterial aufgetragen, bevor der Endlos-Filterstrang vom Filterumhüllungspapier umschlossen wird. Die Herstellung des Endlos-Filterstranges kann auch aus flockigem Material erfolgen. Ein solches Verfahren wird in der 10.) US-PS 3.366.521 beschrieben. Auch können weitere Materialien, wie Papierstreifen, in den Endlos-Filterstrang eingefügt werden wie in der 11.) US-PS 3.426.764.The plasticizer or the plasticizer is applied to the filter material, for example in US Pat. No. 3,306,254, before the continuous filter strand is enclosed by the filter wrapping paper. The endless filter strand can also be made from fluffy material. Such a method is described in 10.) U S -PS 3.366.521. Other materials, such as paper strips, can also be inserted into the endless filter strand as in No. 11) US Pat. No. 3,426,764.
Es gibt auch Verfahren, mit denen auf Filterumhüllungspapiere verzichtet werden kann. Zum Beispiel wird in der 12.) US-PS 3.470.008 eine Erfindung beschrieben, bei der das Filterumhüllungspapier durch eine Umhüllung aus Wachsen und Harzen ersetzt wird, die als geschmolzene Mischung durch eine besondere Vorrichtung auf den Endlos-Filterstrang aufgebracht wird. Ein weiteres Verfahren verwendet Äthylen-VinylacetatCopolymere als Umhüllungsmaterial, siehe 13.) CA-PS 838.444. Auch gibt es besondere Vorrichtungen, bei denen(wie in der 14.) DE-PS 26 29 906 durch Erhitzen und lokales Sohmelzen) der Endlos-Filterstrang mit einer Haut versehen wird. Diese Verfahren sind jedoch teurer als der übliche Einsatz von Filterumhüllungspapier, da sie zusätzliche Bearbeitungsgänge und Materialien benötigen und der Bandprozess der Filterherstellung durch die Abkühlungs- beziehungsweise Aushärtungsphase wesentlich verlangsamt wird.There are also procedures that do without filter wrapping papers. For example, in U.S. Pat. No. 3,470,008, an invention is described in which the filter wrapping paper is replaced by a wrapping of waxes and resins which is applied as a molten mixture to the continuous filter strand by a special device. Another method uses ethylene-vinyl acetate copolymers as the wrapping material, see 13.) CA-PS 838.444. Also, there are special devices in which (as in 14) EN - is provided with a filter rod skin - PS 26 29 906 by heating and local Sohmelzen) of the endless. However, these methods are more expensive than the usual use of filter wrapping paper because they require additional processing steps and materials and the band process of Filter production is significantly slowed down by the cooling or curing phase.
Die Verklebung des Endlos-Filterstranges mit dem Filterumhüllungspapier erfolgt in üblicher Weise, indem ein Leim, Hartschmelzkleber oder eine Lösung von Celluloseacetat in Triacetin beziehungsweise Triäthylenglykoldiacetat auf das Filterumhüllungspapier aufgetragen wird. Aus einem derartigen Filterstrang werden dann zunächst Filterstäbe und aus diesem Einzelfilter für die Zigaretten hergestellt.The bonding of the continuous filter strand with the filter wrapper paper in a conventional manner by using a glue, hard-melt adhesive or a solution of cellulose acetate in triacetin or triethylene lykoldiacetat g is applied to the filter wrapping paper. Filter rods are then first produced from such a filter strand and from this individual filter for the cigarettes.
Der Erfindung liegt die Aufgabe zugrunde, das Herstellungsverfahren des Filterstranges zu vereinfachen und zu verbilligen.The invention has for its object to simplify and cheapen the manufacturing process of the filter train.
Die Erfindung besteht darin, dass bei der Herstellung der Filterumhüllungsfolie Celluloseacetat zugesetzt wird. Mit besonderem Vorteil wird dabei in der Weise vorgegangen, dass bei der Herstellung der Filterumhüllungsfolie Tauabfall und/oder Filterstrangschuss (-abfall) und/ oder Zigarettenfilterschuss (-abfall) verwendet wird.The invention consists in that cellulose acetate is added in the production of the filter covering film. It is particularly advantageous to proceed in such a way that thaw waste and / or filter strand weft (waste) and / or cigarette filter weft (waste) is used in the production of the filter wrapping film.
Mit den vorgenannten erfindungsgemässen Merkmalen wird die Aufgabe in besonders einfacher und vorteilhafter Weise gelöst. Durch den Zusatz von Celluloseacetat bei der Herstellung der Filterumhüllungsfolie wird erreicht, dass diese mit dem Filterstoff, der aus einem Cellulose- acetat-Tau, versetzt mit einem Weichmacher, besteht, verklebt, ohne zusätzlichen Auftrag von Leim, Hartschmelzkleber oder einer Lösung von Celluloseacetat in Triacetin beziehungsweise Triäthylenglykoldiacetat. Dadurch wird ein zusätzlicher Arbeitsgang und damit verbundene Kosten vermieden und somit das Gesamtherstellungsverfahren verbilligt.With the aforementioned features according to the invention, the object is achieved in a particularly simple and advantageous manner. The addition of cellulose acetate in the manufacture of the filter wrapping film ensures that it is glued to the filter material, which consists of a cellulose acetate dew mixed with a plasticizer, without additional application of glue, hard-melt adhesive or a solution of cellulose acetate in Triacetin or triethylene glycol diacetate. This avoids an additional operation and the associated costs and thus ver the entire manufacturing process approves.
Das erfindungsgemässe Verfahren kann aber nach dem weiteren Erfindungsvorschlag dadurch noch wesentlich verbilligt werden, dass bei der Herstellung der Filterumhüllungsfolie Tauabfall und/oder Filterstrangschuss (-abfall) und/oder Zigarettenfilterschuss (-abfall) verwendet wird. Hierdurch entfallen zusätzlich die Kosten für die Beschaffung von Celluloseacetat. Bei der Herstellung des Taus beziehungsweise des Filterstranges beziehungsweise der Zigarettenfilter fällt erfahrungsgemäss ein beachtlicher Prozentsatz von Abfall beziehungsweise Ausschuss, auch teilweise "Schuss" genannt, an. Dieser Ausschussanfall ist ausreichend, um das erfindungsgemässe Verfahren mit Erfolg durchführen zu können, und zwar auch ohne zusätzliche Beschaffung von Cellulose- acetat.However, the method according to the invention can, according to the further proposal of the invention, be made considerably cheaper by using thaw waste and / or filter strand weft (waste) and / or cigarette filter weft (waste) in the manufacture of the filter wrapping film. This also eliminates the cost of procuring cellulose acetate. Experience has shown that a considerable percentage of waste or rejects, also sometimes called "weft", is produced in the manufacture of the dew or the filter rod or the cigarette filter. This amount of rejects is sufficient to be able to successfully carry out the method according to the invention, even without additional procurement of cellulose acetate.
Ein weiterer Vorteil bei der Verwendung von Filterstrangschuss beziehungsweise Zigarettenfilterschuss besteht darin, dass bei wiederholter Anwendung des erfindungsgemässen Verfahrens der Papieranteil der Filterumhüllungsfolie auf ein Minimum reduziert wird, so dass man in der Praxis zu einer papierfreien Filterumhüllungsfolie gelangen kann. Wird nur Tauabfall verwendet, so ist die Filterumhüllungsfolie effektiv papierfrei. Ferner ist durch die gleichmässigere Verklebung von Taustrang und Filterumhüllungsfolie Verklebung von Taustrang und Filterumhüllungsfolie der entstehende Filterstab im allgemeinen härter als ein Vergleichsstab, bei dem in herkömmlicher Weise das Filterumhüllungspapier durch Auftrag von Leim, Hartschmelzkleber oder einer Lösung von Celluloseacetat in Triacetin beziehungsweise Triäthylenglykoldiacetat mit einem Taustrang verklebt ist. Eine grössere Härte der Filterstäbe stellt jedoch eine Qualitätsverbesserung dar, die sich sowohl für die Weiterverarbeitung als auch für das Endprodukt, Filterzigarette, positiv darstellt.Another advantage of using a continuous filter section or cigarette filter section is that the repeated use of the method according to the invention reduces the paper content of the filter wrapping film to a minimum, so that in practice a paper-free filter wrapping film can be obtained. If only thaw waste is used, the filter wrapping film is effectively paper-free. Furthermore, due to the more uniform gluing of rope and filter wrapping film, gluing of rope and filter wrapping film, the resulting filter rod is generally harder than a comparison rod, in which the filter wrapping paper is applied in a conventional manner of glue, hard-melt adhesive or a solution of cellulose acetate in triacetin or triethylene glycol diacetate is glued with a rope. However, a higher hardness of the filter rods represents an improvement in quality, which is positive both for further processing and for the end product, filter cigarette.
Weitere Erfindungsvorschläge, die besondere Vorteile bedingen, stellen die nachfolgenden Beispiele 1 bis 3 dar.The following examples 1 to 3 represent further proposals for the invention which require particular advantages.
Für die Herstellung der Filterumhüllungsfolie wurde Cellulose-Acetatstaub verwendet. Der Acetatstaub wurde dem Abfall bei der Tauherstellung entnommen. Die mittlere Korngrösse der einzelnen Fasern (Staubteilchen) betrug 0,003 mm. Erfindungsgemäss wurde aus diesem Acetatstaub die Filterumhüllungsfolie hergestellt, wobei der Anteil des Cellulose-Acetatstaubs zwischen 30 % und 70 % variiert wurde. Weitere Bestandteile des Breies, aus dem im Brandprozess die Filterumhüllungsfolie gefertigt wurde, waren Kalziumkarbonat, Pottasche und Zellstoff. Die Luftdurchlässigkeit der Filterumhüllungsfolien wurde so variiert, dass sowohl luftundurchlässige Filterumhüllungsfolien als auch solche mit Luftdurchlässigkeiten bis zu 1600 cm/min : kPa (gemessen nach Entwurf DIN 20 247) auftraten.Cellulose acetate dust was used to make the filter wrapping film. The acetate dust was taken from the waste from the thawing process. The average grain size of the individual fibers (dust particles) was 0.003 mm. According to the invention was prepared from this A cetatstaub the filter wrap film was produced, the proportion of the cellulose Acetatstaubs between 30% and 70% was varied. Other components of the pulp from which the filter wrapping film was made in the fire process were calcium carbonate, potash and cellulose. The air permeability of the filter wrapping films was varied such that both air-impermeable filter wrapping films and those with air permeability up to 1600 cm / min: kPa (measured according to draft DIN 20 247) occurred.
Ausgangsmaterial für eine andere Anfertigung der erfindungsgemässen Filterumhüllungsfolie waren Cellulose-Acetatfasern, die durch feines Schneiden von Acetattau-Abfällen gewonnen wurden. Die Herstellung der Filterumhüllungsfolie erfolgt in gleicher Weise wie im Beispiel 1. Die mittlere Faserlänge der Acetatfasern betrug in diesem Falz jedoch 0,017 mm. Es empfiehlt sich nicht, zu grdsse Schnittlängen zu wählen, da die entstandene höhere Oberflächenrauhigkeit der gefertigten Filterumhüllungsfolie bei der Filterherstellung durch einen verstärkten Abrieb den Verschleiss der Maschinen beschleunigen würde.The starting material for another production of the filter wrapping film according to the invention was cellulose acetate fibers, which were obtained by finely cutting acetate dew waste. The filter wrapping film is produced in the same way as in Example 1. However, the mean fiber length of the acetate fibers in this fold was 0.017 mm. It is not advisable to choose too large cutting lengths, since the resulting higher surface roughness of the filter wrapping film produced during filter production would accelerate the wear of the machines due to increased abrasion.
Filterstrangschuss, wie er üblicherweise bei der Herstellung von Acetatfiltern entsteht, insbesondere beim Anlaufen der Maschinen, diente als Ausgangsmaterial für einen anderen Test der erfindungsgemässen Filterumhüllungsfolie. Das Abfallmaterial wurde zunächst auf einer Schneidemaschine, wie sie auch zum Schneiden von Tabak verwendet wird, auf drei verschiedene Schnittbreiten geschnitten -(als "fein", "mittel" und "grob" bezeichnet). Aus diesen Materialien wurden erfindungsgemässe Filterumhüllungsfolien hergestellt. Da die Filterumhüllungsfolie bei der Verarbeitung starker Zugbeanspruchung ausgesetzt wird, ist es zweckmässig, die Folienherstellung so zu betreiben, dass keine zu geringen Bruchlasten auftreten. Die für den hier beschriebenen Test erzeugten Filterumhüllungsfolien hatten folgende Bruchlasten:
Anschliessend wurden die technologischen Eigenschaften der Filterumhüllungsfolie in einem Langzeitversuch auf der Filterherstellungsmaschine getestet. Dazu wurde eine Filterumhüllungsfolie verwendet, die, wie bereits beschrieben, aus Filterstrangschuss hergestellt wurde. Der Cellulose-Acetat-Anteil betrug 30 %, das Flächengewicht dieser Filterumhüllungsfolie war 30 + 1,5 g/m2, die Bruchlast war grösser als 28 N und die Längsdehnung betrug 1,5 + 0,5 % (gemessen gemäss DIN 53 112). Die technologischen Eigenschaften der Filterumhüllungsfolie erwiesen sich dabei im Vergleich mit der herkömmlichen Technik, bei der Filterumhüllungspapier mit dem Taustrang durch Leim verklebt wurde, deutlich überlegen. Insbesondere zeichneten sich die erzeugten -Filterstäbe, gegenüber den Vergleichs-Filterstäben, aufgrund der besseren Verbindung von Taustrang und Filterumhüllungsfolie, durch eine um ca. 25 % grössere Härte aus.The technological properties of the filter wrapping film were then tested in a long-term test on the filter manufacturing machine. For this purpose, a filter wrapping film was used, which, as already described, was produced from a filter strand shot. The cellulose acetate content was 30%, the weight per unit area of this filter wrapping film was 30 + 1.5 g / m 2 , the breaking load was greater than 28 N and the longitudinal elongation was 1.5 + 0.5% (measured according to DIN 53 112 ). The technological properties of the filter wrapping film proved to be clearly superior to the conventional technology, in which filter wrapping paper was glued to the rope with glue. In particular, the filter rods produced were distinguished by a 25% greater hardness compared to the comparison filter rods, due to the better connection of rope and filter wrapping film.
Ferner ist eine erfindungsgemässe Weiterentwicklung darin zu sehen, dass bei der Herstellung der Filterumhüllungsfolie ein Anteil von 3o% bis 70% Celluloseacetat zugesetzt wird. Darüberhinaus ist eine erfindungsgemässe Weiterentwicklung auch darin zu sehen, dass neben Celluloseacetat 70% bis 30% Anteile Zellstoff zugesetzt werden. Durch die vor gekennzeichneten Merkmale wird sichergestellt, dass in besonders vorteilhafter Weise die Filterumhüllungsfolie mit für die Praxis guten Eigenschaften hergestellt werden kann. In diesem Zusammenhang ist es ferner von Vorteil, das Verfahren in der Weise durchzuführen, dass zusätzlich Pottasche und/oder Kalziumkarbonat zugesetzt werden.Furthermore, a further development according to the invention is to be seen in the fact that a proportion of 30% to 70% cellulose acetate is added to the production of the filter covering film. In addition, a further development according to the invention can also be seen in the fact that, in addition to cellulose acetate, 70% to 30% of pulp are added. The features identified before ensure that the filter wrapping film can be produced in a particularly advantageous manner with properties that are good in practice. In this context, it is also advantageous to carry out the method in such a way that additional potash and / or calcium carbonate are added.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792906092 DE2906092A1 (en) | 1979-02-17 | 1979-02-17 | METHOD FOR PRODUCING A FILTER STRAND FROM WHICH SINGLE FILTERS FOR CIGARETTES ARE OBTAINED |
| DE2906092 | 1979-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0016333A2 true EP0016333A2 (en) | 1980-10-01 |
| EP0016333A3 EP0016333A3 (en) | 1981-10-07 |
Family
ID=6063137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80100685A Withdrawn EP0016333A3 (en) | 1979-02-17 | 1980-02-11 | Process for the manufacture of a filter rod out of which individual cigarette filters are produced |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0016333A3 (en) |
| DE (1) | DE2906092A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092996A1 (en) * | 1982-04-26 | 1983-11-02 | Cristopher Ralph Bale | Tipping assembly for an elongate smoking article, and method for making the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191328490A (en) * | 1913-12-10 | 1914-11-12 | Louis John Riley | Improvements relating to Cigarettes. |
| DE629751C (en) * | 1933-08-11 | 1936-05-09 | Walter Wittelsbach Dr | Process for the production of cigarette paper |
| DE1028926B (en) * | 1952-12-05 | 1958-04-24 | Eastman Kodak Co | Filter element for tobacco smoke |
-
1979
- 1979-02-17 DE DE19792906092 patent/DE2906092A1/en not_active Withdrawn
-
1980
- 1980-02-11 EP EP80100685A patent/EP0016333A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191328490A (en) * | 1913-12-10 | 1914-11-12 | Louis John Riley | Improvements relating to Cigarettes. |
| DE629751C (en) * | 1933-08-11 | 1936-05-09 | Walter Wittelsbach Dr | Process for the production of cigarette paper |
| DE1028926B (en) * | 1952-12-05 | 1958-04-24 | Eastman Kodak Co | Filter element for tobacco smoke |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092996A1 (en) * | 1982-04-26 | 1983-11-02 | Cristopher Ralph Bale | Tipping assembly for an elongate smoking article, and method for making the same |
| GB2119224A (en) * | 1982-04-26 | 1983-11-16 | Christopher Ralph Bale | Wrapped cigarette filter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2906092A1 (en) | 1980-08-21 |
| EP0016333A3 (en) | 1981-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69830793T2 (en) | SMOKE ITEMS AND SMOKE MATERIAL THEREFOR | |
| DE1517300A1 (en) | Filters and process for their manufacture | |
| DE2732904A1 (en) | LONELY FILTER | |
| DE2456945A1 (en) | THERMOPLASTIC CIGARETTE COVER | |
| DE3122193C2 (en) | Mouthpiece for filter cigarettes | |
| DE1632236C3 (en) | Tobacco filters and process for their manufacture | |
| AT408501B (en) | FILTER CIGARETTE | |
| DE1099423B (en) | Filter element for tobacco smoke containing powdered substances | |
| DE3802646A1 (en) | CIGARETTE | |
| DE2717182A1 (en) | METHOD AND DEVICE FOR MANUFACTURING SMOKABLE TOBACCO PRODUCTS AND SMOKABLE TOBACCO PRODUCTS | |
| DE2913823A1 (en) | METHOD FOR PRODUCING A TOBACCOA CUT WITH IMPROVED FILLABILITY | |
| DE1517258C3 (en) | Process for the production of isotropic, cellular cellulose filters for tobacco smoke | |
| DE1517290A1 (en) | Process for the utilization and refinement of tobacco dust and other tobacco waste | |
| DE1242135B (en) | Tobacco smoke filters | |
| DE2341685C3 (en) | Cellulose acetate fiber cigarette filters and process for their manufacture | |
| EP1441606A1 (en) | Filter segments or filter for cigarettes and method for the production thereof | |
| EP0016333A2 (en) | Process for the manufacture of a filter rod out of which individual cigarette filters are produced | |
| DE2341686B2 (en) | Process for the manufacture of a cigarette filter from cellulose acetate fibers | |
| DE3937843C2 (en) | ||
| DE3032478A1 (en) | CIGARETTE FILTER AND METHOD FOR THE PRODUCTION THEREOF | |
| DE2110216C3 (en) | Smoking material mixture | |
| DE2243349A1 (en) | TOBACCO SMOKE FILTER IMPROVEMENTS | |
| DE3115904A1 (en) | TOBACCO SMOKING FILTER | |
| DE19822775B4 (en) | Process for the production of hardened filter rods in the cigarette industry | |
| DE102017120268A1 (en) | Tobacco film, rod-shaped smoking article and method for producing a tobacco film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT NL |
|
| ITCL | It: translation for ep claims filed |
Representative=s name: STUDIO MASSARI S.R.L. |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| RHK1 | Main classification (correction) |
Ipc: D21H 5/16 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH FR GB IT NL |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19820118 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GEHRING, MANFRED, DR.DIPL.-PHYS. |