ES2201570T3 - BIODEGRADABLE FILTER FOR CIGARETTES. - Google Patents
BIODEGRADABLE FILTER FOR CIGARETTES.Info
- Publication number
- ES2201570T3 ES2201570T3 ES98965660T ES98965660T ES2201570T3 ES 2201570 T3 ES2201570 T3 ES 2201570T3 ES 98965660 T ES98965660 T ES 98965660T ES 98965660 T ES98965660 T ES 98965660T ES 2201570 T3 ES2201570 T3 ES 2201570T3
- Authority
- ES
- Spain
- Prior art keywords
- filter according
- binder
- cellulose
- filter
- veil
- 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.)
- Expired - Lifetime
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 229920002678 cellulose Polymers 0.000 claims abstract description 16
- 239000001913 cellulose Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 235000019505 tobacco product Nutrition 0.000 claims abstract 2
- 239000011230 binding agent Substances 0.000 claims description 12
- 229920000126 latex Polymers 0.000 claims description 4
- 239000004816 latex Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 229920001353 Dextrin Polymers 0.000 claims description 2
- 239000004375 Dextrin Substances 0.000 claims description 2
- 235000019425 dextrin Nutrition 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000014759 maintenance of location Effects 0.000 description 4
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 238000006065 biodegradation reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000001087 glyceryl triacetate Substances 0.000 description 2
- 235000013773 glyceryl triacetate Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229960002622 triacetin Drugs 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Nonwoven Fabrics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Biological Depolymerization Polymers (AREA)
- Filtering Materials (AREA)
- Paper (AREA)
Abstract
Filtro para productos de tabaco, en particular cigarrillos, el cual se ha preparado a partir de un velo de celulosa, preparado según el método "Airlaid", caracterizado porque unas tiras de una banda de fibras (1-5) del velo de celulosa, plegadas en forma de V, están dispuestas en la zona de sus vértices (14) alrededor del eje central del filtro para cigarrillos a preparar y se han girado de forma helicoidal, haciendo contacto entre sí, para proporcionar una camisa de cilindro.Filter for tobacco products, in particular cigarettes, which has been prepared from a cellulose veil, prepared according to the "Airlaid" method, characterized in that strips of a band of fibers (1-5) of the cellulose veil, folded in a V-shape, they are arranged in the area of their vertices (14) around the central axis of the cigarette filter to be prepared and have been rotated helically, making contact with each other, to provide a cylinder sleeve.
Description
Filtro biodegradable para cigarrillos.Biodegradable filter for cigarettes.
La invención se refiere a un filtro biodegradable según el preámbulo de la reivindicación 1.The invention relates to a biodegradable filter according to the preamble of claim 1.
Para los cigarrillos, los filtros de papel constituyen la solución óptima desde el punto de vista ecológico. El escaso éxito obtenido por los filtros puramente de papel a pesar de ello, se debe a varias características específicas del material de papel.For cigarettes, paper filters they constitute the optimal solution from the ecological point of view. The little success obtained by purely paper filters despite This is due to several specific characteristics of the material of paper.
El problema principal de los filtros de papel radica en el sabor diferente del humo en comparación con los filtros para cigarrillos convencionales de acetato de celulosa. Otros problemas incluyen la retención claramente distinta, un dureza claramente reducida con la misma retención y una estructura de poros gruesos de la superficie del corte de filtro en comparación con los filtros de acetato de celulosa.The main problem of paper filters it lies in the different taste of smoke compared to filters for conventional cellulose acetate cigarettes. Other problems include clearly distinct retention, a hardness clearly reduced with the same retention and a structure of thick pores of the filter cut surface in comparison with cellulose acetate filters.
Dichos problemas tienen por resultado que los fumadores rechazan los cigarrillos con filtros de papel por motivos de sabor, de óptica y de háptica.These problems result in the smokers reject cigarettes with paper filters for reasons of flavor, optics and haptic.
La razón principal de ello parece ser la distinta forma de los materiales. El papel está presente en forma de velo o hoja, mientras que el acetato de celulosa está presente en forma de fibras. Todos los intentos de conseguir las características ópticas y hápticas del acetato de celulosa por medio de procedimientos de procesamiento diferentes, por ejemplo por el encrespado o plisado del velo de papel, han fallado. Tampoco se conoce hasta la actualidad un procedimiento que sea capaz de modificar el papel con respecto a sus características de retención química de tal forma que corresponda al acetato. Dichos problemas sin resolver tienen por consecuencia que los cigarrillos se fabrican en la actualidad con dobles filtros que contienen un segmento de papel y uno de celulosa.The main reason for this seems to be the different Materials form. The paper is present in the form of a veil or leaf, while cellulose acetate is present in the form of fibers All attempts to achieve optical characteristics and cellulose acetate haptics by means of different processing, for example by curling or pleating of the paper veil, they have failed. It is not known until currently a procedure that is able to modify the paper with regarding its chemical retention characteristics in such a way corresponding to acetate. These unsolved problems have consequently that cigarettes are manufactured today with double filters that contain a segment of paper and one of cellulose.
Esta forma de realización resulta muy cara y, desde el punto de vista ecológico, todavía no óptima, debido a las complicadas técnicas de producción.This embodiment is very expensive and, from the ecological point of view, not yet optimal, due to the complicated production techniques.
Por el documento EP 0 032 044 B1 se conoce un procedimiento para la producción de bandas de fibras con fibras poco compactas, en el cual las fibras secas se aplican en una corriente de aire en un tamiz a una banda de soporte. Durante su paso por la cabeza de formación y su salida de la misma, las fibras no se someten a fuerzas de corriente transversales, con lo cual se mantiene un peso de base sustancialmente uniforme en dirección transversal con respecto a la banda de fibras. Esto permite preparar lechos de fibras con un peso por unidad de superficie superior a 70 g/m^{2}. Dicho procedimiento conocido se denomina también el método "Airlaid". Sin embargo, la naturaleza pelosa del material similar al algodón imposibilita preparar filtros para cigarrillos utilizando este material.From EP 0 032 044 B1 a known procedure for the production of fiber bands with fibers little compact, in which dry fibers are applied in a air flow in a sieve to a support band. During his step through the formation head and its exit from it, the fibers they are not subjected to transverse current forces, thereby maintains a substantially uniform base weight in the direction transverse with respect to the fiber band. This allows to prepare fiber beds with a weight per unit area greater than 70 g / m2. Said known procedure is also called the "Airlaid" method. However, the hairy nature of cotton-like material makes it impossible to prepare filters for Cigarettes using this material.
Por el documento EP-A-0 711 512 se conoce un filtro para cigarrillos que está compuesto principalmente por un éster de celulosa. El material de filtro, es decir el éster de celulosa, puede contener también otras sustancias, denominadas componentes secundarios o de rango secundario. Dichas otras sustancias, que pueden estar presentes adicionalmente, incluyen entre otras la celulosa natural.For the document EP-A-0 711 512 a filter is known for cigarettes that is mainly composed of an ester of cellulose. The filter material, ie the cellulose ester, It may also contain other substances, called components secondary or secondary range. These other substances, which may be present additionally, include among others the natural cellulose
El objetivo de la invención es desarrollar un monofiltro que presente una biodegradabilidad sustancialmente mejorada respecto al acetato de celulosa, manteniendo al mismo tiempo su efecto de sabor, aspecto, dureza y propiedad de retención de acetato de celulosa de forma no distinguible para el consumidor, cuya preparación pueda llevarse a cabo de manera sencilla.The objective of the invention is to develop a monofilter that exhibits substantially biodegradability improved with respect to cellulose acetate, keeping it time its effect of taste, appearance, hardness and retention property of cellulose acetate not distinguishable for the consumer, whose preparation can be carried out in a simple way.
Dicho objetivo, se alcanza por medio de las características previstas en la reivindicación 1.Said objective is achieved through the characteristics provided in claim 1.
Sorprendentemente, se ha hallado que se consigue el objetivo perseguido con un papel preparado según el método denominado "Airlaid" y transformado en un filtro según la manera prevista en la invención.Surprisingly, it has been found that it is achieved the objective pursued with a paper prepared according to the method called "Airlaid" and transformed into a filter according to the manner provided in the invention.
En el método "Airlaid", las fibras de celulosa procesadas no se suspenden en agua, tal como sucede en los procedimientos de producción de papel clásicos, y se coloca en un tamiz permeable destinado a la formación de hojas, en el cual las fibras de celulosa, debido a su molido y fibrilación, se reticulan entre sí, sino que se colocan en una corriente de aire con la máxima separación, la cual las transporta a un tamiz continuo permeable y las deposita allí de forma no ordenada. Este método produce un velo voluminoso casi similar al algodón, que en esta forma carece de resistencia mecánica o reticulación entre fibras. Una reticulación mecánica, y con ello la resistencia necesaria para su transformación ulterior, se obtiene por medio de la adición de un aglutinante a la corriente de aire, tal como por ejemplo alcohol polivinílico, acetato de polivinilo, almidón polimérico, dextrina o látex. El grado de densidad (g/cm^{3}), por tanto la voluminosidad o espesor, se ajusta por el calandrado que sigue a continuación. El peso por unidad de superficie (g/m^{2}) se controla por medio de la velocidad de tamizado o de la alimentación de fibras en la corriente de aire.In the "Airlaid" method, the fibers of Processed cellulose is not suspended in water, as it happens in Classic paper production procedures, and placed in a permeable sieve for sheet formation, in which the Cellulose fibers, due to their grinding and fibrillation, crosslink each other but they are placed in a stream of air with the maximum separation, which transports them to a continuous sieve permeable and deposits them there in an unordered manner. This method produces a bulky veil almost similar to cotton, which in this form lacks mechanical resistance or cross-linking between fibers. A mechanical cross-linking, and with it the necessary resistance to its subsequent transformation is obtained through the addition of a binder to the air stream, such as for example alcohol polyvinyl, polyvinyl acetate, polymeric starch, dextrin or latex. The degree of density (g / cm3), therefore the bulkiness or thickness, is adjusted by the calendering that follows continuation. The weight per unit area (g / m2) is controls by means of sieving speed or fiber feed in the air stream.
A continuación, se ilustrará la invención con mayor detalle, haciendo referencia a una forma de realización ejemplificativa, en la cual:Next, the invention will be illustrated with greater detail, referring to an embodiment Example, in which:
\newpage\ newpage
la Figura 1 representa una banda de fibra preparada según el método "Airlaid" con líneas de corte que discurren en dirección longitudinal;Figure 1 represents a fiber band prepared according to the "Airlaid" method with cut lines that they run in the longitudinal direction;
la Figura 2 representa la forma de plegado de las tiras de la banda de fibras indicada;Figure 2 represents the folding form of the strips of the indicated fiber band;
la Figura 3 representa el enrollado de las tiras de la banda de fibras helicoidal de la Figura 2.Figure 3 represents the winding of the strips of the helical fiber band of Figure 2.
La Figura 1 muestra una banda de fibras 10 preparada según el método "Airlaid" con un peso por unidad de superficie de aproximadamente 40-50 g/m^{2}, que se ha cortado, comenzando con una línea A-A en un número de n tiras de la banda de fibras, siendo n = 5 para la forma de realización representada. Sin embargo, debe señalarse que n puede representar también otro número, por ejemplo 4 ó 6, siendo n = 4, sin embargo, un número preferido que, sin embargo, es difícil de representar en un dibujo en la disposición helicoidal según la Figura 3.Figure 1 shows a fiber band 10 prepared according to the "Airlaid" method with a weight per unit of surface area of approximately 40-50 g / m2, which has been cut, starting with an A-A line in a number of n strips of the fiber web, where n = 5 for the shape of realization represented. However, it should be noted that n it can also represent another number, for example 4 or 6, where n = 4, however, a preferred number which, however, is difficult to represent in a drawing in the helical arrangement according to the Figure 3
Las cinco tiras de la banda de fibras 1-5, que se obtienen por medio de cortes longitudinales en la banda de fibras 10 de la Figura 1, se pliegan, según la invención, primero en forma de una V utilizando un dispositivo adecuado, tal como se representa en la Figura 2. A continuación, los extremos libres de las tiras de la banda de fibras 1-5 plegadas en forma de una V, se colocan uno junto a otro, y las tiras se unen por medio de un dispositivo adecuado de tal forma que los vértices 14 de las tiras de la banda de fibras plegadas en forma de una V están dispuestos alrededor del eje central del filtro para cigarrillos a preparar y se giran, haciendo contacto entre sí, de forma helicoidal para proporcionar una camisa de cilindro, tal como se ha indicado esquemáticamente en sección transversal en la Figura 3. En realidad, las tiras de la banda de fibras individuales 1-5 están presentes, tras el enrollado helicoidal según la Figura 3, tan cerca una a otra, debido a una compresión previa, que dan la impresión de un filtro homogéneo, cerrado, que presenta el aspecto del extremo por el lado bocal de un filtro de acetato de celulosa. Dicho de otra manera, debido a la velocidad del material, ya no puede detectarse que sólo unas pocas capas de las tiras de la banda de fibras se han unido entre sí de forma helicoidal de la manera representada en la Figura 3.The five strips of the fiber band 1-5, which are obtained through cuts lengths in the fiber web 10 of Figure 1, are folded, according to the invention, first in the form of a V using a suitable device, as depicted in Figure 2. A then the free ends of the strips of the fiber web 1-5 folded in the form of a V, one is placed next to another, and the strips are joined by means of a device suitable so that the vertices 14 of the strips of the band of fibers folded in the form of a V are arranged around the central axis of the filter for cigarettes to be prepared and rotated, making contact with each other, helically to provide a cylinder liner, as indicated schematically in cross section in Figure 3. Actually, the strips of the Individual fiber band 1-5 are present, after the helical winding according to Figure 3, so close one to another, due to a previous compression, which give the impression of a homogeneous, closed filter, presenting the appearance of the end by the mouth side of a cellulose acetate filter. Said of another way, due to the speed of the material, it can no longer be detected that only a few layers of the strips of the fiber band have helically bonded together in the manner represented in the Figure 3
Las tiras de la banda de fibras 1-5 enrolladas según la Figura 3 se sujetan de forma convencional con papel de recubrimiento de filtro 12, con lo cual el filtro de papel según la invención presenta, tras ser completado, el aspecto de un filtro de acetato de celulosa.The strips of the fiber band 1-5 rolled up according to Figure 3 are held in conventional form with filter coating paper 12, with which paper filter according to the invention has, after being completed, the appearance of a cellulose acetate filter.
Se prepararon los modelos de cigarrillos citados en la tabla que sigue y se compararon uno con otro:The cited cigarette models were prepared in the table that follows and they were compared with each other:
(Tabla pasa a página siguiente)(Table goes to page next)
Los materiales de filtro utilizados presentaban las especificaciones siguientes:The filter materials used presented The following specifications:
Acetato 3,0 y/35.000 HK con una carga de triacetina del 7%Acetate 3.0 and / 35,000 HK with a charge of 7% triacetin
Acetato 2,1 y/36.000 SK con una carga de triacetina del 7%Acetate 2.1 and / 36,000 SK with a load of 7% triacetin
Airlaid B+D 48 g/m^{2}, aglutinante de latex y un espesor de aproximadamente 0,8 mmAirlaid B + D 48 g / m2, latex binder and a thickness of about 0.8 mm
Airlaid E 70 g/m^{2}, aglutinante de latex y un espesor de aproximadamente 1,1 mmAirlaid E 70 g / m2, latex binder and a thickness of approximately 1.1 mm
donde HK significa altamente encrespado y SK superencrespado.where HK means highly curled and SK supercooked.
Los datos obtenidos de los procedimientos analíticos y físicos se elaboraron según las reglas vigentes aplicables según las normas DIN/ISO y no presentan variaciones dentro de las precisiones de medición. La evaluación del sabor fue realizada por 15 fumadores formados y no produjeron diferencias significantes en la comparación por pares.The data obtained from the procedures Analytical and physical were prepared according to the current rules applicable according to DIN / ISO standards and do not show variations within the measurement accuracy. The taste evaluation was made by 15 trained smokers and produced no differences Significant in the pairwise comparison.
La biodegradación del material de filtro para cigarrillos según la invención se llevó a cabo dentro de un periodo comparable al del material de filtro de celulosa (para cigarrillos) disponible en el mercado. Esto significa una mejora sustancial en comparación con el acetato de celulosa. La evaluación de la biodegradación se llevó a cabo según el "Ensayo de Sturm" utilizado de forma corriente en la industria, el cual fue descrito por R.N. Sturm en J. Americ. Oil Chemists' Soc. 50 (1973) Mayo, p. 159-167 en el artículo "Biodegradability of nonionic surfactants: screening test for predicting rate and ultimate biodegradation".The biodegradation of the filter material for cigarettes according to the invention was carried out within a period comparable to that of the commercially available cellulose filter material (for cigarettes). This means a substantial improvement compared to cellulose acetate. The biodegradation evaluation was carried out according to the "Sturm Test" commonly used in industry, which was described by RN Sturm in J. Americ. Oil Chemists' Soc. 50 (1973) May, p. 159-167 in the article "Biodegradability of nonionic surfactants: screening test for predicting rate and ultimate biodegradation".
Claims (14)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19753195A DE19753195A1 (en) | 1997-11-21 | 1997-11-21 | Biologically decomposable filter for cigarettes |
| DE19753195 | 1997-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2201570T3 true ES2201570T3 (en) | 2004-03-16 |
Family
ID=7850358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98965660T Expired - Lifetime ES2201570T3 (en) | 1997-11-21 | 1998-11-10 | BIODEGRADABLE FILTER FOR CIGARETTES. |
Country Status (25)
| Country | Link |
|---|---|
| EP (1) | EP1032282B1 (en) |
| JP (1) | JP2001523478A (en) |
| KR (1) | KR20010015833A (en) |
| CN (1) | CN1287697C (en) |
| AT (1) | ATE243949T1 (en) |
| AU (1) | AU2152599A (en) |
| BG (1) | BG64687B1 (en) |
| CZ (1) | CZ297655B6 (en) |
| DE (2) | DE19753195A1 (en) |
| EA (1) | EA001848B1 (en) |
| EE (1) | EE200000269A (en) |
| ES (1) | ES2201570T3 (en) |
| HK (1) | HK1033247A1 (en) |
| HR (1) | HRP20000417B1 (en) |
| HU (1) | HU224871B1 (en) |
| NO (1) | NO20002553L (en) |
| OA (1) | OA11413A (en) |
| PL (1) | PL187199B1 (en) |
| PT (1) | PT1032282E (en) |
| SK (1) | SK284074B6 (en) |
| TR (1) | TR200001450T2 (en) |
| TW (1) | TW575405B (en) |
| UA (1) | UA70934C2 (en) |
| WO (1) | WO1999026496A2 (en) |
| YU (1) | YU49401B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EE200100445A (en) | 1999-02-26 | 2002-12-16 | H.F. & Ph.F. Reemtsma Gmbh | Smoked product |
| DE10115120A1 (en) * | 2001-03-27 | 2002-10-02 | Hauni Maschinenbau Ag | Method and appliance for producing filters comprise two cutters, two rollers, bobbin, two guides with openings for strips |
| DE102004042809A1 (en) * | 2004-09-03 | 2006-03-23 | Reemtsma Cigarettenfabriken Gmbh | Process for producing filters for tobacco products |
| US7479098B2 (en) | 2005-09-23 | 2009-01-20 | R. J. Reynolds Tobacco Company | Equipment for insertion of objects into smoking articles |
| DE102009016148A1 (en) * | 2009-04-03 | 2010-10-14 | Mcairlaid's Vliesstoffe Gmbh & Co. Kg | Filter material for cleaning air and gases |
| CN101919592B (en) * | 2009-06-12 | 2012-05-23 | 佳木斯合成实业有限责任公司 | Wooden fiber paper adhesive-applied filter rod for cigarettes and preparation method thereof |
| US20110180084A1 (en) * | 2010-01-27 | 2011-07-28 | R.J. Reynolds Tobacco Company | Apparatus and associated method for forming a filter component of a smoking article |
| US10064429B2 (en) * | 2011-09-23 | 2018-09-04 | R.J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses |
| PL2712510T3 (en) * | 2012-09-28 | 2016-08-31 | Reemtsma Cigarettenfabriken Gmbh | Smoking article |
| DE102016105235B4 (en) * | 2016-03-21 | 2019-02-14 | Delfortgroup Ag | Improved filter paper for cigarette filters, its manufacture and filter cigarette |
| KR101976325B1 (en) * | 2018-07-06 | 2019-05-07 | 주식회사 케이티앤지 | Cigarette filter reducing smoke constituent, cigarette, and manufacturing method thereof |
| GB201919107D0 (en) * | 2019-12-20 | 2020-02-05 | Nicoventures Trading Ltd | An article for use in a non-combustible aerosol provision system |
| DE102022102066A1 (en) * | 2022-01-28 | 2023-08-03 | Delfortgroup Ag | SMOKING ARTICLE SEGMENT WITH CALENDED FIBRE WEB |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1562134A (en) * | 1976-10-06 | 1980-03-05 | Celanese Corp | Filter material |
| AU537637B2 (en) | 1979-12-21 | 1984-07-05 | Kimberly-Clark Corporation | Dry laid weds |
| US4375448A (en) * | 1979-12-21 | 1983-03-01 | Kimberly-Clark Corporation | Method of forming a web of air-laid dry fibers |
| JPS59174670A (en) * | 1983-03-24 | 1984-10-03 | Daihachi Kagaku Kogyosho:Kk | Binder for cellulose acetate fiber |
| US4813948A (en) * | 1987-09-01 | 1989-03-21 | Minnesota Mining And Manufacturing Company | Microwebs and nonwoven materials containing microwebs |
| JP3420359B2 (en) * | 1994-10-21 | 2003-06-23 | ダイセル化学工業株式会社 | Filter material for tobacco smoke, fibrous cellulose ester and method for producing the same |
| DE19609143C1 (en) * | 1996-03-08 | 1997-11-13 | Rhodia Ag Rhone Poulenc | Melt-blown fleece, process for its production and its uses |
-
1997
- 1997-11-21 DE DE19753195A patent/DE19753195A1/en not_active Ceased
-
1998
- 1998-11-10 EA EA200000550A patent/EA001848B1/en not_active IP Right Cessation
- 1998-11-10 UA UA2000063572A patent/UA70934C2/en unknown
- 1998-11-10 WO PCT/EP1998/007121 patent/WO1999026496A2/en active IP Right Grant
- 1998-11-10 KR KR1020007005576A patent/KR20010015833A/en active IP Right Grant
- 1998-11-10 CZ CZ20001828A patent/CZ297655B6/en not_active IP Right Cessation
- 1998-11-10 CN CNB988113759A patent/CN1287697C/en not_active Expired - Fee Related
- 1998-11-10 AT AT98965660T patent/ATE243949T1/en active
- 1998-11-10 HU HU0004346A patent/HU224871B1/en not_active IP Right Cessation
- 1998-11-10 JP JP2000521713A patent/JP2001523478A/en active Pending
- 1998-11-10 EE EEP200000269A patent/EE200000269A/en unknown
- 1998-11-10 SK SK741-2000A patent/SK284074B6/en not_active IP Right Cessation
- 1998-11-10 DE DE59808927T patent/DE59808927D1/en not_active Expired - Lifetime
- 1998-11-10 EP EP98965660A patent/EP1032282B1/en not_active Expired - Lifetime
- 1998-11-10 AU AU21525/99A patent/AU2152599A/en not_active Abandoned
- 1998-11-10 ES ES98965660T patent/ES2201570T3/en not_active Expired - Lifetime
- 1998-11-10 YU YU30800A patent/YU49401B/en unknown
- 1998-11-10 TR TR2000/01450T patent/TR200001450T2/en unknown
- 1998-11-10 PL PL98341089A patent/PL187199B1/en unknown
- 1998-11-10 PT PT98965660T patent/PT1032282E/en unknown
- 1998-11-20 TW TW87119276A patent/TW575405B/en not_active IP Right Cessation
-
2000
- 2000-05-18 NO NO20002553A patent/NO20002553L/en not_active Application Discontinuation
- 2000-05-19 OA OA1200000149A patent/OA11413A/en unknown
- 2000-06-20 BG BG104548A patent/BG64687B1/en unknown
- 2000-06-21 HR HR20000417A patent/HRP20000417B1/en not_active IP Right Cessation
-
2001
- 2001-06-11 HK HK01103982A patent/HK1033247A1/en not_active IP Right Cessation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2201570T3 (en) | BIODEGRADABLE FILTER FOR CIGARETTES. | |
| CA2784216C (en) | Sheet filter materials with additives | |
| US4889143A (en) | Cigarette rods and filters containing strands provided from sheet-like materials | |
| NO146010B (en) | FIBER MATERIAL FILTER OR ABSORPTION | |
| JP6755942B2 (en) | Cigarette with filter | |
| JP4594584B2 (en) | Recess filter and smokable article including recess filter | |
| AU673567B2 (en) | Improvements relating to smoking articles | |
| ES2925883T3 (en) | Hydroentangled Filter Material for Smoking Articles | |
| EP2854571B1 (en) | Tobacco smoke filter and method of production | |
| EP2709473B1 (en) | Smoking article wrapper | |
| JPS6328586B2 (en) | ||
| RU2222242C2 (en) | Material for cigarette filters and method for manufacturing the same | |
| US6718987B1 (en) | Smokers′ article | |
| RU98117221A (en) | FILTER FOR CIGARETTES | |
| JPH04211356A (en) | Rodlike smoke filter | |
| PL187198B1 (en) | Filter cigarette undergoing biodegradation | |
| AU2014298369A1 (en) | Tobacco smoke filter and method of production | |
| DK152168B (en) | SMOKE FILTER STAND AND PROCEDURE FOR PREPARING IT | |
| TWI618490B (en) | Cigarette attached with filter | |
| ES2972095T3 (en) | Hydroentangled filter material for smoking articles with improved extension behavior | |
| GB2212707A (en) | Smoking articles | |
| GB2058543A (en) | Improvements relating to smoke filtration |