ES2386187T3 - Multi-component filter for smoking product - Google Patents

Multi-component filter for smoking product Download PDF

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Publication number
ES2386187T3
ES2386187T3 ES08827853T ES08827853T ES2386187T3 ES 2386187 T3 ES2386187 T3 ES 2386187T3 ES 08827853 T ES08827853 T ES 08827853T ES 08827853 T ES08827853 T ES 08827853T ES 2386187 T3 ES2386187 T3 ES 2386187T3
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Prior art keywords
filter
segment
component
mouth
aroma
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Spanish (es)
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Clément BESSO
Yves Jordil
Charles Kuersteiner
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Philip Morris Products SA
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Philip Morris Products SA
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    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
    • A24B15/303—Plant extracts other than tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
    • 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
    • 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
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Botany (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

Un filtro multi-componente (4) para un producto para fumar que comprende: un segmento (12) de extremo para la boca; y un segmento (14) de liberación de aroma aguas arriba el segmento (12) de extremo para la boca, en el que el segmento de liberación de aroma (14) comprende un tapón de material de filtración fibroso, una hoja de menta distribuida a traves del material de filtración fibroso y un plastificante de filtro aplicado al material de filtración fibroso, en el que la cantidad de plastificante de filtro del segmento de liberación de aroma es de hasta 5 % en peso del material de filtración fibroso.A multi-component filter (4) for a smoking product comprising: an end segment (12) for the mouth; and an aroma release segment (14) upstream the mouth end segment (12), wherein the aroma release segment (14) comprises a plug of fibrous filtration material, a mint leaf distributed to through the fibrous filtration material and a filter plasticizer applied to the fibrous filtration material, in which the amount of filter plasticizer of the aroma release segment is up to 5% by weight of the fibrous filtration material.

Description

Filtro multi-componente para producto para fumar� Multi-component filter for smoking product�

La presente invenci6n se refiere a un filtro multi-componente para un producto para fumar y a un producto para fumar que comprende dicho filtro multi-componente. The present invention relates to a multi-component filter for a smoking product and a smoking product comprising said multi-component filter.

5 Tipicamente, los cigarrillos con filtro comprenden un cilindro de relleno cortado tabaco enrollado por un envoltorio de papel y un filtro cilindrico alineado, en base a una relaci6n extremo con extremo, con el cilindro de tabaco enrollado y unido al mismo por medio de papel de uni6n. Con frecuencia se proporciona ventilaci6n a traves de perforaciones con forma de circunferencia en un punto a lo largo del filtro, con el fin de mezclar la corriente principal de humo producido durante la combusti6n del cilindro de tabaco enrollado con el aire ambiente. 5 Typically, filter cigarettes comprise a tobacco cut filler cylinder wound by a paper wrapper and an aligned cylindrical filter, based on an end-to-end relationship, with the tobacco cylinder rolled and attached thereto by means of paper union. Ventilation is often provided through circumferential perforations at a point along the filter, in order to mix the main stream of smoke produced during combustion of the rolled tobacco cylinder with ambient air.

10 En los cigarrillos con filtro convencionales, normalmente el filtro consiste en un tap6n de filtro de acetato de celulosa enrollado en un envoltorio poroso de tap6n. No obstante, tambien se conocen los cigarrillos con filtro que presentan filtros de multi-componente que comprenden dos o mas segmentos de material de filtraci6n para la retirada de las particulas y componentes gaseosos del humo de la corriente principal. Con el fin de mejorar el aroma del humo de la corriente principal, se conoce el hecho de proporcionar cigarrillos con filtro que presentan filtros que incluyen 10 In conventional filter cigarettes, the filter usually consists of a cellulose acetate filter cap wrapped in a porous cap wrap. However, filter cigarettes are also known which have multi-component filters comprising two or more segments of filtration material for the removal of particles and gaseous components of the smoke from the mainstream. In order to improve the aroma of mainstream smoke, it is known to provide filter cigarettes that have filters that include

15 aromatizantes. En particular, se han propuesto incluir aromatizantes en forma de material de planta, tales como hojas, semillas o raices, de una o mas plantas aromaticas. En un ejemplo conocido, se propone un cigarrillo con filtro que presenta un filtro multi-componente que tiene un segmento de liberaci6n de aroma que contiene una mezcla de materiales de planta, incluyendo material de planta de regaliz, raiz de jengibre y hojas de menta picadas. 15 flavorings. In particular, they have been proposed to include flavorings in the form of plant material, such as leaves, seeds or roots, of one or more aromatic plants. In a known example, a filter cigarette is proposed that has a multi-component filter that has an aroma release segment containing a mixture of plant materials, including licorice plant material, ginger root and chopped mint leaves. .

Tambien se conoce la incorporaci6n de material de planta de tabaco al interior del filtro del producto para fumar. Por The incorporation of tobacco plant material into the filter of the smoking product is also known. By

20 ejemplo, el documento WO-A 2006/090290 describe un filtro que incluye perlas de tabaco en el interior del filtro. De manera opcional, las perlas de tabaco incluyen aromatizantes ademas de las particulas de tabaco. For example, WO-A 2006/090290 describes a filter that includes tobacco beads inside the filter. Optionally, tobacco pearls include flavorings in addition to tobacco particles.

Seria deseable proporcionar un filtro multi-componente para un producto para fumar que, durante el uso, proporcione un incremento mejorado del aroma, y en particular una mejora administraci6n de aroma de menta y mentol al humo de la corriente principal a medida que es extraido a partir del cilindro de material apto para fumar a It would be desirable to provide a multi-component filter for a smoking product that, during use, provides an improved increase in aroma, and in particular an improved administration of mint and menthol aroma to mainstream smoke as it is extracted from the cylinder of smoking material to

25 traves del filtro por parte del consumidor. Ademas, seria deseable proporcionar un filtro multi-componente para un producto para fumar que comprenda un segmento de liberaci6n de aroma que minimice la perdida de aroma durante el almacenamiento. 25 through the filter by the consumer. In addition, it would be desirable to provide a multi-component filter for a smoking product that comprises an aroma release segment that minimizes the loss of aroma during storage.

De acuerdo con la presente invenci6n se proporciona un filtro multi-componente para un producto para fumar que comprende: un segmento de extremo para la boca; y un segmento de liberaci6n de aroma aguas arriba del In accordance with the present invention a multi-component filter is provided for a smoking product comprising: an end segment for the mouth; and an aroma release segment upstream of the

30 segmento de extremo para la boca. El segmento de liberaci6n de aroma comprende un tap6n material de filtraci6n fibroso, hoja de menta distribuida por todo el material de filtraci6n fibroso y un plastificante de filtro aplicado sobre el material de filtraci6n fibroso. La cantidad de plastificante de filtro del segmento de liberaci6n de aroma es de hasta 5 % en peso del material de filtraci6n fibroso. 30 end segment for the mouth. The aroma release segment comprises a fibrous filter material cap, mint leaf distributed throughout the fibrous filter material and a filter plasticizer applied on the fibrous filter material. The amount of filter plasticizer in the aroma release segment is up to 5% by weight of the fibrous filter material.

De acuerdo con la invenci6n tambien se proporciona un producto para fumar que comprende un cilindro enrollado de In accordance with the invention a smoking product is also provided comprising a rolled cylinder of

35 material apto para fumar y un filtro multi-componente de acuerdo con la presente invenci6n unido al cilindro de material apto para fumar, preferentemente por medio de un papel de uni6n. Preferentemente, el producto para fumar es un cigarrillo con filtro. The material suitable for smoking and a multi-component filter according to the present invention attached to the cylinder of material suitable for smoking, preferably by means of a joining paper. Preferably, the smoking product is a filter cigarette.

A lo largo de la memoria descriptiva, los terminos "aguas arriba" y "aguas abajo" se usan para describir las posiciones relativas de los segmentos del filtro multi-componente de la invenci6n con respecto a la direcci6n del Throughout the specification, the terms "upstream" and "downstream" are used to describe the relative positions of the segments of the multi-component filter of the invention with respect to the direction of the

40 humo de la corriente principal extraido a partir del cilindro de material apto para fumar a traves del filtro multicomponente durante el uso. Por ejemplo, en el filtro de la presente invenci6n el segmento de liberaci6n de aroma se encuentra aguas arriba del segmento de extremo para la boca, lo que significa que el humo de la corriente principal es extraido en primer lugar a traves del segmento de liberaci6n de aroma y posteriormente a traves del segmento de extremo para la boca. 40 mainstream smoke extracted from the cylinder of smoking material through the multi-component filter during use. For example, in the filter of the present invention the aroma release segment is located upstream of the end segment for the mouth, which means that the smoke from the mainstream is first extracted through the release segment of aroma and subsequently through the end segment for the mouth.

45 La expresi6n "plastificante de filtro" se refiere a cualquier compuesto apropiado para su uso como plastificante en un tap6n de filtro fibroso convencional para cigarrillos. En los tapones de filtro fibrosos convencionales, el papel del plastificante de filtro consiste en unir las fibras del tap6n de manera que se aumente la rigidez del tap6n, y por tanto su resistencia a la compresi6n. Tipicamente, el plastificante es un disolvente para el material de fibra y actua reblandeciendo la superficie externa de las fibras de forma que estas se adhieren unas a otras. El triacetato de The term "filter plasticizer" refers to any compound suitable for use as a plasticizer in a conventional fibrous filter cap for cigarettes. In conventional fibrous filter caps, the role of the filter plasticizer is to bond the fibers of the cap so that the stiffness of the cap is increased, and therefore its compressive strength. Typically, the plasticizer is a solvent for the fiber material and acts by softening the outer surface of the fibers so that they adhere to each other. The triacetate of

50 glicerol se usa comunmente como plastificante de filtro para el filtro de acetato de celulosa. 50 glycerol is commonly used as a filter plasticizer for the cellulose acetate filter.

Preferentemente, el plastificante de filtro que se usa en la presente invenci6n es triacetato de glicerol. Preferably, the filter plasticizer used in the present invention is glycerol triacetate.

La expresi6n "hoja de menta" se usa para indicar un material que consiste en hojas de una planta de menta, que preferentemente han sido cortadas o picadas para proporcionar un material en forma de particulas. The term "mint leaf" is used to indicate a material consisting of leaves of a mint plant, which have preferably been cut or chopped to provide a particulate material.

La hoja de menta es capaz de liberar aroma al interior del humo de la corriente principal extraido a traves del filtro 55 multi-componente. El aroma liberado a partir de la hoja de menta es proporcionado por medio de compuestos The mint leaf is capable of releasing aroma into the smoke from the mainstream extracted through the multi-component filter. The aroma released from the mint leaf is provided by means of compounds

volatiles, tales como aceites, presentes en la misma, que se volatilizan durante la acci6n de fumar. El humo de la corriente principal enriquecido con los aceites volatiles de la hoja de menta fluye aguas abajo a traves del segmento de extremo para la boca del filtro multi-componente hacia el interior de la boca del consumidor. volatiles, such as oils, present therein, which volatilize during smoking. The mainstream smoke enriched with the volatile oils of the mint leaf flows downstream through the end segment for the mouth of the multi-component filter into the consumer's mouth.

Antes de la acci6n de fumar, los aceites volatiles permanecen atrapados dentro de la hoja de menta. De manera ventajosa, esto garantiza que se minimiza la perdida de aroma durante el almacenamiento de los filtros de multicomponente y de los productos para fumar de acuerdo con la presente invenci6n, y de este modo se maximiza la liberaci6n de aroma hacia el interior del humo de la corriente principal durante la acci6n de fumar. Before the smoking action, volatile oils remain trapped inside the mint leaf. Advantageously, this ensures that the loss of aroma during the storage of the multi-component filters and the smoking products in accordance with the present invention is minimized, and in this way the release of aroma into the smoke interior is maximized. the mainstream during the smoking action.

Preferentemente, la hoja de menta del segmento de liberaci6n de aroma se encuentra picada, cortada o de otro modo reducida en cuanto a su tamafo. Mas preferentemente, la hoja de menta presenta una anchura de corte de entre aproximadamente 0,25 mm y aproximadamente 3 mm. Del modo mas preferido, la hoja de menta presenta una anchura de corte de entre aproximadamente 1 mm y aproximadamente 2 mm. Preferably, the mint leaf of the aroma release segment is chopped, cut or otherwise reduced in size. More preferably, the mint leaf has a cutting width of between about 0.25 mm and about 3 mm. Most preferably, the mint leaf has a cutting width of between about 1 mm and about 2 mm.

Preferentemente, la hoja de menta se seca hasta un contenido de humedad de entre aproximadamente 8 % y aproximadamente 10 %. Preferably, the mint leaf is dried to a moisture content of between about 8% and about 10%.

Preferentemente, el contenido de aceite de la hoja de menta es de al menos aproximadamente 0,6 % en peso. La inclusi6n de la hoja de menta en el segmento de liberaci6n de aroma de los filtros de multi-componente de acuerdo con la presente invenci6n proporciona de manera ventajosa una forma de conferir aromas de menta y mentol al humo de la corriente principal del producto para fumar. Los productos para fumar de acuerdo con la presente invenci6n, de manera ventajosa, proporcionan aromas de menta y mentol mejorados en comparaci6n con los cigarrillos mentolados convencionales. Preferably, the oil content of the mint leaf is at least about 0.6% by weight. The inclusion of the mint leaf in the aroma release segment of the multi-component filters according to the present invention advantageously provides a way of conferring mint and menthol aromas to the smoke from the mainstream of the smoking product . The smoking products according to the present invention advantageously provide improved mint and menthol aromas compared to conventional menthol cigarettes.

En realizaciones particularmente preferidas de la invenci6n, el plastificante de filtro es triacetato de glicerol. De manera sorprendente, se han encontrado que la inclusi6n de hoja de menta y triacetato de glicerol en el segmento de liberaci6n de aroma de los filtros de multi-componente y los productos para fumar de acuerdo con la presente invenci6n mejora de manera ventajosa el aroma de menta y mentol proporcionado por la liberaci6n de mentol y otros aceites volatiles a partir de la hoja de menta. Esto se ilustra, por ejemplo, por medio de los resultados de la Tabla 1 siguiente. In particularly preferred embodiments of the invention, the filter plasticizer is glycerol triacetate. Surprisingly, it has been found that the inclusion of mint leaf and glycerol triacetate in the aroma release segment of multi-component filters and smoking products in accordance with the present invention advantageously improves the aroma of Mint and menthol provided by the release of menthol and other volatile oils from the mint leaf. This is illustrated, for example, by the results of Table 1 below.

La Tabla 1 muestras las cantidades de compuestos particulares de aroma liberados en el interior del humo de la corriente principal a partir de la hoja de menta en el segmento de liberaci6n de aroma de los cigarrillos con filtro (Muestras 1 y 3) de acuerdo con la invenci6n que tiene la construcci6n general que se muestra en la Figura 1. El segmento de liberaci6n de aroma consiste en un tap6n de filtro de acetato de celulosa con hoja de menta y triacetato de glicerol distribuido en el mismo. La Tabla 1 tambien muestra las cantidades de los compuestos de aroma liberados a partir de la hoja de menta en el segmento de liberaci6n de aroma de los cigarrillos con filtro (Muestras 2 y 4) no de acuerdo con la invenci6n que tienen la misma construcci6n que las Muestras 1 y 3, pero en el que el segmento de liberaci6n de aroma no contiene triacetato de glicerol. Cada una de las muestras contiene 40 mg de hoja de menta. No se miden todos los compuestos liberados a partir de la hoja de menta. Table 1 shows the amounts of particular aroma compounds released into the mainstream smoke from the mint leaf in the aroma release segment of filter cigarettes (Samples 1 and 3) according to the Invention having the general construction shown in Figure 1. The aroma release segment consists of a cellulose acetate filter cap with mint leaf and glycerol triacetate distributed therein. Table 1 also shows the amounts of the aroma compounds released from the mint leaf in the aroma release segment of the filter cigarettes (Samples 2 and 4) not in accordance with the invention having the same construction as Samples 1 and 3, but in which the aroma release segment does not contain glycerol triacetate. Each sample contains 40 mg of mint leaf. Not all compounds released from mint leaf are measured.

Cada una de las muestras es fumada en condiciones ISO y se analizan los extractos de humo obtenidos usando un metodo de control de i6n unico GC-MS con el fin de determinar los niveles de compuestos volatiles en el humo. Se lleva a cabo un analisis de barrido completo con un intervalo de barrido de 30 a 400 m/z (proporci6n de masa de ani6n con respecto a carga). Each of the samples is smoked under ISO conditions and the smoke extracts obtained using a single GC-MS control method are analyzed in order to determine the levels of volatile compounds in the smoke. A full scan analysis is carried out with a scanning interval of 30 to 400 m / z (proportion of anion mass with respect to load).

Como puede verse a partir de la Tabla 1, la combinaci6n de triacetato de glicerol y hoja de menta en el segmento de liberaci6n de aroma de los cigarrillos con filtro de acuerdo con la presente invenci6n da lugar a niveles mayores de compuesto de aroma que es liberado desde la hoja de menta en el interior del humo de la corriente principal durante la acci6n de fumar, en comparaci6n con los cigarrillos con filtro no de acuerdo con la invenci6n, en los que el segmento de liberaci6n de aroma no contiene triacetato de glicerol. As can be seen from Table 1, the combination of glycerol triacetate and mint leaf in the aroma release segment of filter cigarettes according to the present invention results in higher levels of aroma compound being released. from the mint leaf inside the mainstream smoke during the smoking action, as compared to filter cigarettes not in accordance with the invention, in which the aroma release segment does not contain glycerol triacetate.

Tabla 1 (continuaci6n) Table 1 (continued)

Muestra 1 Sample 1
Muestra 2 Muestra 3 Muestra 4 Sample 2 Sample 3 Sample 4

Alquitran, mg/cigarrillo Alquitran, mg / cigarette
1 1 6 6 one one 6 6

Contenido de triacetato de glicerol del segmento de liberaci6n de aroma, % Glycerol triacetate content of aroma release segment,%
5 0 6 0 5 0 6  0

Muestra 1 Sample 1
Muestra 2 Muestra 3 Muestra 4 Sample 2 Sample 3 Sample 4

Cantidad de mentol liberado en el interior del humo de la corriente principal durante la acci6n de fumar, μg/cigarrillo Amount of menthol released inside the mainstream smoke during smoking, μg / cigarette
0,70 0,25 3,63 1,79 0.70 0.25 3.63 1.79

Cantidad de mentona liberada en el interior del humo de la corriente principal durante la acci6n de fumar, μg/cigarrillo Amount of chin released inside the mainstream smoke during smoking, μg / cigarette
0,45 0,25 1,19 0,87 0.45 0.25 1.19 0.87

Cantidad de acetato de mentilo liberado en el interior del humo de la corriente principal durante la acci6n de fumar, μg/cigarrillo Amount of mentyl acetate released inside the mainstream smoke during smoking, μg / cigarette
nd 0,36 0,187 0,052 nd 0.36 0.187 0.052

Cantidad de neomentol liberado en el interior del humo de la corriente principal durante la acci6n de fumar, μh/cigarrillo Amount of neomenthol released inside the mainstream smoke during smoking, μh / cigarette
0,050 nd 0,254 0,124 0.050 nd 0.254 0.124

Cantidad de α-pineno liberado en el interior del humo de la corriente principal durante la acci6n de fumar, μg/cigarrillo Amount of α-pinene released inside the mainstream smoke during smoking, μg / cigarette
nd 0,018 0,032 0,030 nd 0.018 0.032 0.030

Cantidad de β-pineno liberado en el interior del humo de la corriente principal durante la acci6n de fumar, μg/cigarrillo Amount of β-pinene released inside the mainstream smoke during smoking, μg / cigarette
nd nd 0,050 0,049 nd nd 0.050 0.049

(nd - no determinado)nd (nd - not determined) nd

Durante la acci6n de fumar del producto para fumar que comprende el filtro multi-componente de acuerdo con la invenci6n en el que el plastificante de filtro es triacetato de glicerol, se liberan acido acetico y glicerina en el 5 segmento de liberaci6n de aroma del filtro como resultado de la hidr6lisis del triacetato de glicerol. Por consiguiente, los niveles de acido acetico liberado en el filtro durante la acci6n de fumar son considerablemente mayores que para el producto de fumar no de acuerdo con la invenci6n, como queda ilustrado por medio de los resultados que se muestran en la Tabla 2 siguiente. La Tabla 2 proporciona las dimensiones y propiedades de un cigarrillo con filtro (Muestra 5) de acuerdo con la presente invenci6n que tiene la construcci6n general que se muestra en la Figura 9. During the smoking action of the smoking product comprising the multi-component filter according to the invention in which the filter plasticizer is glycerol triacetate, acetic acid and glycerin are released in the aroma release segment of the filter as Hydrolysis result of glycerol triacetate. Therefore, the levels of acetic acid released into the filter during smoking are considerably higher than for the smoking product not in accordance with the invention, as illustrated by the results shown in Table 2 below. Table 2 provides the dimensions and properties of a filter cigarette (Sample 5) in accordance with the present invention having the general construction shown in Figure 9.

10 El segmento del extremo para la boca del cigarrillo con filtro consiste en un tap6n de filtro acetato de celulosa y el segmento de liberaci6n de aroma consiste en un tap6n de filtro de acetato de celulosa con hoja de menta y triacetato de glicerol distribuidos en el mismo. La Tabla 2 proporciona las dimensiones y las propiedades de un cigarrillo con filtro (Muestra 6) no de acuerdo con la presente invenci6n que tiene la misma construcci6n que la Muestra 5, pero en el cual el segmento de liberaci6n de aroma no contiene triacetato de glicerol. 10 The end segment for the cigarette mouth with filter consists of a cellulose acetate filter cap and the aroma release segment consists of a cellulose acetate filter cap with mint leaf and glycerol triacetate distributed therein . Table 2 provides the dimensions and properties of a filter cigarette (Sample 6) not in accordance with the present invention having the same construction as Sample 5, but in which the aroma release segment does not contain glycerol triacetate. .

15 Como se puede observar a partir de la Tabla 2, la combinaci6n de triacetato de glicerol y hoja de menta en el segmento de liberaci6n de aroma del filtro multi-componente del cigarrillo con filtro de acuerdo con la presente invenci6n (Muestra 5) da como resultado un nivel considerablemente mayor de acido acetico que el liberado en el filtro en comparaci6n con el cigarrillo con filtro no de acuerdo con la presente invenci6n (Muestra 6), en el que unicamente el segmento de extremo para la boca contiene triacetato de glicerol. 15 As can be seen from Table 2, the combination of glycerol triacetate and mint leaf in the aroma release segment of the multi-component filter of the cigarette with filter according to the present invention (Sample 5) gives as a considerably higher level of acetic acid resulted than that released in the filter compared to the filter cigarette not in accordance with the present invention (Sample 6), in which only the end segment for the mouth contains glycerol triacetate.

20 Tabla 2 20 Table 2

Muestra 5 Sample 5
Muestra 6 Sample 6

Alquitran, mg/cigarrillo Alquitran, mg / cigarette
6,1 6,2 6.1 6.2

RTD Total, mm H2O Total RTD, mm H2O
93 92 93 92

35 (continuaci6n) 35 (continued)

Muestra 5 Sample 5
Muestra 6 Sample 6

Ventilaci6n, % Ventilation,%
35 36 35 36

Longitud del cigarrillo, mm Cigarette length, mm
84,0 84,0 84.0 84.0

Longitud del segmento de extremo para la boca, mm Length of the end segment for the mouth, mm
15,0 15,0 15.0 15.0

Longitud del segmento de liberaci6n de aroma, mm Length of aroma release segment, mm
12,0 12,0 12.0 12.0

RTD de filtro, mm H2O RTD filter, mm H2O
92,7 91,2 92.7 91.2

Contenido de triacetato de glicerol del segmento de boca, % Glycerol triacetate content of the mouth segment,%
7,0 7,0 7.0 7.0

Contenido de triacetato de glicerol del segmento de liberaci6n de aroma, % Glycerol triacetate content of aroma release segment,%
5,0 0,0 5.0 0.0

Contenido de hojas de menta, mg Peppermint leaf content, mg
40,0 40,0 40.0 40.0

Concentraci6n de acido acetico, ppm (basado en el peso de cigarrillo -920 mg) Acetic acid concentration, ppm (based on cigarette weight -920 mg)
221 57 221 57

Preferentemente, la longitud total de los productos para fumar de acuerdo con la presente invenci6n se encuentra entre aproximadamente 70 mm y aproximadamente 128 mm, mas preferentemente de aproximadamente 84mm. Preferably, the total length of the smoking products according to the present invention is between about 70 mm and about 128 mm, more preferably about 84 mm.

Preferentemente, el diametro externo de los filtros de multi-componente y de los productos para fumar de acuerdo con la presente invenci6n se encuentra entre aproximadamente 5 mm y 8,5 mm, mas preferentemente aproximadamente 7,9 mm. Preferably, the external diameter of the multi-component filters and of the smoking products according to the present invention is between about 5 mm and 8.5 mm, more preferably about 7.9 mm.

Preferentemente, la longitud total de los filtros de multi-componente de acuerdo con la presente invenci6n se encuentra entre aproximadamente 18 mm y aproximadamente 36 mm, mas preferentemente aproximadamente 27 mm. Preferably, the total length of the multi-component filters according to the present invention is between about 18 mm and about 36 mm, more preferably about 27 mm.

Preferentemente, la longitud de cada segmento individual de filtros de multi-componente de acuerdo con la presente invenci6n se encuentra entre aproximadamente 5 mm y aproximadamente 22 mm. Preferably, the length of each individual segment of multi-component filters according to the present invention is between about 5 mm and about 22 mm.

El segmento de extremo para la boca de los filtros de multi-componente de acuerdo con la invenci6n pueden, en algunas realizaciones, de manera ventajosa evitar que la hoja de menta procedentes del segmento de liberaci6n de aroma alcance la boca del consumidor durante la acci6n de fumar. Preferentemente, el segmento de extremo para la boca comprende material de filtraci6n. Mas preferentemente, el segmento de extremo para la boca comprende material de filtraci6n que no presenta considerablemente eficacia de filtraci6n de la fase de particulas o que presenta una eficacia de filtraci6n de la fase de particulas muy reducida. El segmento de extremo para la boca puede, por ejemplo, comprender material celul6sico, tal como un filtro de acetato de celulosa u otro material apropiado de filtraci6n fibroso o baja eficacia de filtraci6n. The end segment for the mouth of the multi-component filters according to the invention can, in some embodiments, advantageously prevent the mint leaf from the aroma release segment from reaching the consumer's mouth during the action of smoke. Preferably, the end segment for the mouth comprises filtering material. More preferably, the end segment for the mouth comprises filtration material that does not have a considerable filtration efficiency of the particle phase or that has a very reduced filtration efficiency of the particle phase. The mouth end segment may, for example, comprise cellulosic material, such as a cellulose acetate filter or other suitable fibrous filtration material or low filtration efficiency.

Cuando el segmento de extremo para la boca comprende material de filtraci6n, preferentemente la longitud del segmento de extremo para la boca se encuentra entre aproximadamente 3 mm y aproximadamente 12 mm, mas preferentemente entre aproximadamente 6 mm y aproximadamente 8 mm. When the mouth end segment comprises filtration material, preferably the length of the mouth end segment is between about 3 mm and about 12 mm, more preferably between about 6 mm and about 8 mm.

Los filtros de multi-componente de acuerdo con la presente invenci6n pueden ademas comprender un segmento de extremo de cilindro aguas arriba del segmente de liberaci6n de aroma. Preferentemente, el segmento de extremo de cilindro comprende material de filtraci6n fibroso. El segmento de extremo de cilindro puede, por ejemplo, comprender material celul6sico, tal como un filtro de acetato de celulosa u otros materiales de filtraci6n fibrosos apropiados tal como papel. La inclusi6n de un segmento de extremo de cilindro que comprende un material de filtraci6n proporciona, de manera ventajosa, eficacia de filtraci6n adicional. The multi-component filters according to the present invention may further comprise a cylinder end segment upstream of the aroma release segment. Preferably, the cylinder end segment comprises fibrous filtration material. The cylinder end segment may, for example, comprise cellulosic material, such as a cellulose acetate filter or other suitable fibrous filtration materials such as paper. The inclusion of a cylinder end segment comprising a filtration material advantageously provides additional filtration efficiency.

De manera alternativa o adicional, el segmento de extremo de cilindro puede comprender al menos un absorbente capaz de retirar al menos un constituyente de fase gas del humo de la corriente principal a traves del filtro. Preferentemente, al menos el absorbente se escoge entre el grupo que consiste en carbono activado, aluminio activado, zeolitas, sepiolitas, tamices moleculares y gel de silice. Alternatively or additionally, the cylinder end segment may comprise at least one absorbent capable of removing at least one gas phase constituent from the smoke from the main stream through the filter. Preferably, at least the absorbent is chosen from the group consisting of activated carbon, activated aluminum, zeolites, sepiolites, molecular sieves and silica gel.

El segmento de extremo de cilindro puede incluir uno o mas aromatizantes, preferentemente uno o mas aromatizantes liquidos, para mejorar aun mas la administraci6n al consumidor durante la acci6n de fumar. The cylinder end segment may include one or more flavorings, preferably one or more liquid flavorings, to further improve the administration to the consumer during smoking.

Por ejemplo, el segmento de extremo de cilindro puede comprender un tap6n de material de filtraci6n que incluye uno o mas hilos impregnados con el aromatizante liquido. Uno o mas hilos pueden estar formados de hilos de acetato de celulosa, ray6n, algod6n o cualquier otro material textil o no textil hidr6filo capaz de absorber o adsorber For example, the cylinder end segment may comprise a cap of filtration material that includes one or more threads impregnated with the liquid flavoring. One or more threads may be formed of cellulose acetate, rayon, cotton threads or any other hydrophilic textile or non-textile material capable of absorbing or adsorbing

el aromatizante liquido. Los hilos pueden ser coloreados, por ejemplo, para indicar el tipo de aromatizante impregnados en los mismos. Si se proporcionar mas de un hilo, estos pueden ser de colores iguales o diferentes y pueden estar impregnados con los mismos aromatizantes liquidos o con aromatizantes liquidos diferentes. Preferentemente, los hilos se encuentran entre aproximadamente 0,6 mm y aproximadamente 2,0 mm de diametro, mas preferentemente de aproximadamente 0,8 mm de diametro. Los tapones para filtro que comprende aromatizante que contienen hilos apropiados para su uso en los segmentos de extremo de cilindro de filtros de multicomponente de acuerdo con la presente invenci6n, y los metodos y aparatos para producir dichos tapones, se describen en las patentes de EE.UU. Nos. 4.281.671 y 7.074.170 y se encuentran disponibles en The American Filtrona Company, Richmond, Virginia, EE.UU. the liquid flavoring The threads can be colored, for example, to indicate the type of flavoring impregnated therein. If more than one thread is provided, these may be the same or different colors and may be impregnated with the same liquid flavorings or with different liquid flavorings. Preferably, the threads are between about 0.6 mm and about 2.0 mm in diameter, more preferably about 0.8 mm in diameter. The filter caps comprising flavoring containing threads suitable for use in the cylinder end segments of multicomponent filters in accordance with the present invention, and the methods and apparatus for producing said caps, are described in US Pat. UU. Nos. 4,281,671 and 7,074,170 and are available from The American Filtrona Company, Richmond, Virginia, USA.

De manera alternativa, el segmento de extremo de cilindro puede incluir una pluralidad de hilos impregnados con un aromatizante liquido. Los hilos se pueden formar, por ejemplo, a partir de material celul6sico unido con un aglutinante de poli(acetato ce vinilo), o partir de polvo de tabaco unido con celulosa microcristalina. Los hilos apropiados para su uso en los segmentos de extremo de cilindro de los filtros de multi-componente de acuerdo con la presente invenci6n se fabrican y se comercializan bajo la marca de Viscopearls® de Rengo Co., Ltd., Jap6n. Los metodos y los aparatos para producir dichos hilos tambien se describen en la Solicitud de Patente Japonesa N°. 10182842. Los hilos pueden ser de diametros y colores iguales o diferentes. El color de los hilos puede indicar, por ejemplo, el tipo de aromatizante en el que se encuentran impregnados. Preferentemente, los hilos presentan un diametro de entre aproximadamente 0,2 mm y aproximadamente 2 mm. Alternatively, the cylinder end segment may include a plurality of threads impregnated with a liquid flavoring. The threads can be formed, for example, from cellulose material bonded with a polyvinyl acetate binder, or from tobacco powder bonded with microcrystalline cellulose. The wires suitable for use in the cylinder end segments of the multi-component filters according to the present invention are manufactured and marketed under the Viscopearls® brand of Rengo Co., Ltd., Japan. The methods and apparatus for producing said threads are also described in Japanese Patent Application No. 10182842. The threads can be of the same or different diameters and colors. The color of the threads may indicate, for example, the type of flavoring in which they are impregnated. Preferably, the threads have a diameter between about 0.2 mm and about 2 mm.

Lo aromatizantes liquidos para su uso en los segmentos de extremo de cilindro de los filtros de multi-componente de acuerdo con la presente invenci6n pueden incluir uno o mas ingredientes de aroma para crear un determinado tipo de aroma y pueden ser extractos naturales, aromas sinteticos o una de sus combinaciones. Los aromatizantes liquidos y los tipos de aromas que se pueden incluir en el segmento de extremo de cilindro de los filtros de multicomponente de acuerdo con la invenci6n incluyen, pero sin limitarse a, aromatizantes de mentol, menta, hierbabuena, cafe, te, especias (tales como canela, clavo y jengibre), coco, vainilla y fruta. En realizaciones preferidas de la presente invenci6n, el filtro multi-componente comprende un aromatizante liquido de mentol. En dichas realizaciones, el suministro de un aromatizante de mentol al segmento de extremo de rodillo, de manera ventajosa, mejora el aroma liberado al interior del humo de la corriente principal extraido a traves del filtro durante la acci6n de fumar y complementa los aromas de mentol y menta liberados aguas abajo al interior del humo de la corriente principal por medio de la hoja de menta en el segmento de liberaci6n de aroma. Liquid flavorings for use in the cylinder end segments of the multi-component filters according to the present invention may include one or more aroma ingredients to create a certain type of aroma and may be natural extracts, synthetic aromas or One of their combinations. Liquid flavors and types of flavors that may be included in the cylinder end segment of the multi-component filters according to the invention include, but are not limited to, menthol, mint, peppermint, coffee, tea, spices ( such as cinnamon, clove and ginger), coconut, vanilla and fruit. In preferred embodiments of the present invention, the multi-component filter comprises a liquid menthol flavoring. In said embodiments, the supply of a menthol flavoring to the roller end segment advantageously improves the aroma released into the mainstream smoke extracted through the filter during smoking and complements the menthol aromas. and mint released downstream into the mainstream smoke by means of the mint leaf in the aroma release segment.

El segmento de liberaci6n de extremo para la boca puede comprender al menos un aromatizante, tal como los descritos previamente para el segmento de extremo de cilindro. Preferentemente, si se proporciona un aromatizante, el segmento de extremo para la boca incluye uno o mas hilos impregnados con un aromatizante liquido. The mouth end release segment may comprise at least one flavoring, such as those previously described for the cylinder end segment. Preferably, if a flavoring is provided, the mouth end segment includes one or more threads impregnated with a liquid flavoring.

Los filtros de multi-componente de acuerdo con la presente invenci6n pueden incluir segmentos de extremo para la boca que comprenden al menos un aromatizante o segmentos de extremo de cilindro que comprenden al menos un aromatizante o segmentos de extremo para la boca que comprenden al menos un aromatizante y segmentos de extremo de cilindro que comprenden al menos un aromatizante. Cuando el extremo de extremo para la boca y el segmento de extremo de cilindro comprenden al menos un aromatizante, al menos el aromatizante del segmento de extremo para la boca puede ser el mismo que o diferente de al menos un aromatizante del segmento de extremo de cilindro. Multi-component filters according to the present invention may include mouth end segments comprising at least one flavoring or cylinder end segments comprising at least one flavoring or mouth end segments comprising at least one flavoring and cylinder end segments comprising at least one flavoring. When the mouth end end and the cylinder end segment comprise at least one flavoring, at least the flavoring of the mouth end segment may be the same as or different from at least one flavoring of the cylinder end segment .

Durante el uso, a medida que el humo de la corriente principal es extraido del cilindro de material apto para fumar a traves del filtro del multi-componente, se libera el aroma en el interior del humo de la corriente principal a partir de la hoja de menta en el segmento de liberaci6n de aroma. En realizaciones de la presente invenci6n en las que al menos se proporciona un aromatizante en el segmento de extremo de cilindro, tambien se libera aroma aguas arriba del segmento de liberaci6n de aroma como se ha descrito previamente. En realizaciones de la presente invenci6n en las que se proporciona al menos un aromatizante, de manera alternativa o adicional, en el segmento de extremo para la boca, tambien se libera aroma aguas abajo del segmento de liberaci6n de aroma. Por tanto, los filtros de multi-componente de acuerdo con la presente invenci6n tambien pueden proporcionar una mejora de aroma doble o triple al humo de la corriente principal extraido a traves del filtro durante la acci6n de fumar. During use, as the smoke from the main stream is extracted from the cylinder of smoking material through the multi-component filter, the aroma inside the main stream smoke is released from the sheet of mint in the aroma release segment. In embodiments of the present invention in which at least one flavor is provided in the cylinder end segment, aroma is also released upstream from the aroma release segment as previously described. In embodiments of the present invention in which at least one flavoring is provided, alternatively or additionally, in the mouth end segment, aroma is also released downstream of the aroma release segment. Therefore, the multi-component filters according to the present invention can also provide a double or triple aroma enhancement to the mainstream smoke extracted through the filter during smoking.

Los filtros de multi-componente de acuerdo con la presente invenci6n se pueden producir formando cilindros continuos separados que comprenden unidades multiples de cada segmento individual del filtro multi-componente y posteriormente combinando estos cilindros separados de manera conocida en una o mas etapas para formar un cilindro de filtro continuo que comprende unidades multiples de filtro multi-componente. Posteriormente, el cilindro de filtro continuo se puede separar a intervalos regulares por medio de un mecanismo de corte para dar lugar a una sucesi6n de filtros de multi-componente discretos de acuerdo con la invenci6n. Multi-component filters according to the present invention can be produced by forming separate continuous cylinders comprising multiple units of each individual segment of the multi-component filter and subsequently combining these separate cylinders in known manner in one or more stages to form a cylinder. Continuous filter comprising multiple multi-component filter units. Subsequently, the continuous filter cylinder can be separated at regular intervals by means of a cutting mechanism to give rise to a succession of discrete multi-component filters according to the invention.

Preferentemente, los productos para fumar de acuerdo con la presente invenci6n comprenden un cilindro enrollado de sustancia de relleno cortada de tabaco. Preferably, the smoking products according to the present invention comprise a rolled cylinder of tobacco cut filler.

Preferentemente, los productos para fumar de acuerdo con la presente invenci6n presentan una administraci6n de materia particulada seca libre de nicotina total (NFDPM) o "alquitran" de hasta aproximadamente 10 mg. Mas preferentemente, la "administraci6n de alquitran" se encuentra entre 1 mg y 10 mg y mas preferentemente Preferably, the smoking products according to the present invention have an administration of dry particulate matter free of total nicotine (NFDPM) or "tar" of up to about 10 mg. More preferably, the "tar administration" is between 1 mg and 10 mg and more preferably

aproximadamente 6 mg. approximately 6 mg

Los productos para fumar de acuerdo con la presente invenci6n se pueden envasar en recipientes, por ejemplo en paquetes blandos o paquetes de tapa articulada, con un revestimiento interno que presenta uno o mas aromatizantes. The smoking products according to the present invention can be packaged in containers, for example in soft packages or articulated lid packages, with an inner lining having one or more flavorings.

En el filtro de la presente invenci6n, la hoja de menta del segmento de liberaci6n de aroma se encuentra distribuida a traves de un tap6n de material de filtraci6n fibroso, preferentemente un filtro de acetato de celulosa. Se aplica el plastificante de filtro al material de filtraci6n fibroso de forma convencional, por medio de pulverizaci6n sobre las fibras separadas, preferentemente antes de la aplicaci6n de la hoja de menta sobre el material de filtraci6n. In the filter of the present invention, the mint leaf of the aroma release segment is distributed through a plug of fibrous filtration material, preferably a cellulose acetate filter. The filter plasticizer is applied to the fibrous filter material in a conventional manner, by means of spraying on the separated fibers, preferably before the application of the mint leaf on the filtration material.

Preferentemente, la hoja de menta se encuentra distribuida de forma considerablemente uniforme a lo largo de la longitud del tap6n de material de filtraci6n fibroso. La carga de la hoja de menta del segmento de liberaci6n de aroma se encuentra preferentemente entre aproximadamente 1 mg y aproximadamente 4 mg por mm de segmento de liberaci6n de aroma para el filtro multi-componente que presenta un diametro de entre aproximadamente 7,5 mm y aproximadamente 7,8 mm. Preferably, the mint leaf is distributed substantially evenly along the length of the fibrous filter material cap. The mint leaf load of the aroma release segment is preferably between about 1 mg and about 4 mg per mm of aroma release segment for the multi-component filter having a diameter between about 7.5 mm and approximately 7.8 mm

La cantidad de plastificante de filtro puede estar entre 1 % y 9 % en peso del tap6n de material de filtro fibroso, preferentemente de 5 % o menos en peso del tap6n de material de filtro fibroso. Si se usa triacetato de glicerol como plastificante de filtro, preferentemente la cantidad de triacetato de glicerol es de aproximadamente 5 % en peso de filtro de acetato de celulosa u otro material de filtraci6n fibroso. Se ha comprobado que la presente cantidad de acetato de glicerol proporciona una rigidez aceptable del tap6n del material de filtraci6n fibroso del segmento de liberaci6n de aroma sin obstruir la liberaci6n de aroma a partir de la hoja de menta. Es notablemente menor que la cantidad de triacetato de glicerol de los tapones de filtro de acetato de celulosa convencionales, que es tipicamente de aproximadamente 7 % en peso. The amount of filter plasticizer may be between 1% and 9% by weight of the fibrous filter material cap, preferably 5% or less by weight of the fibrous filter material cap. If glycerol triacetate is used as a filter plasticizer, preferably the amount of glycerol triacetate is about 5% by weight of cellulose acetate filter or other fibrous filtration material. It has been found that the present amount of glycerol acetate provides an acceptable stiffness of the fibrous filter material cap of the aroma release segment without obstructing the release of aroma from the mint leaf. It is markedly less than the amount of glycerol triacetate in conventional cellulose acetate filter caps, which is typically about 7% by weight.

En los productos para fumar de acuerdo con la invenci6n, preferentemente el segmento de aroma se encuentra entre aproximadamente 5 mm y aproximadamente 22 mm de longitud, mas preferentemente entre aproximadamente 10 mm y 15 mm de altura, del modo mas preferido de aproximadamente 12 mm de longitud. In smoking products according to the invention, preferably the aroma segment is between about 5 mm and about 22 mm in length, more preferably between about 10 mm and 15 mm in height, most preferably about 12 mm in length. length.

En los productos para fumar de acuerdo con la invenci6n, el segmento de extremo para la boca puede comprender un tubo hueco o rebaje. El tubo hueco o rebaje puede estar formado cuando el filtro multi-componente se une al cilindro de material apto para fumar mediante, por ejemplo, papel de uni6n para formar un producto para fumar de acuerdo con la presente invenci6n. En dichos productos para fumar, el extremo aguas abajo del segmento de liberaci6n de aroma se encuentra visible en el extremo para la boca del filtro multi-componente a traves del tubo hueco o rebaje, permitiendo al consumidor observar la hoja de menta distribuida en el tap6n de material de filtraci6n fibroso. Cuando el segmento de extremo para la boca comprende un tubo hueco o rebaje, la longitud del segmento del extremo para la boca preferentemente es de aproximadamente 3 mm a aproximadamente 4 mm. In smoking products according to the invention, the mouth end segment may comprise a hollow tube or recess. The hollow or recess tube may be formed when the multi-component filter is attached to the cylinder of smoking material by, for example, joining paper to form a smoking product in accordance with the present invention. In said smoking products, the downstream end of the aroma release segment is visible at the mouth end of the multi-component filter through the hollow or recessed tube, allowing the consumer to observe the mint leaf distributed in the cap of fibrous filtration material. When the mouth end segment comprises a hollow tube or recess, the length of the mouth end segment preferably is from about 3 mm to about 4 mm.

Los filtros de multi-componente de acuerdo con la presente invenci6n pueden comprender un segundo segmento de liberaci6n de aroma entre el segmento de extremo para la boca y el segmento de liberaci6n de aroma descritos previamente. La inclusi6n de un segundo segmento de liberaci6n de aroma mejora mas la administraci6n de aroma al consumidor durante la acci6n de fumar. The multi-component filters according to the present invention may comprise a second aroma release segment between the mouth end segment and the aroma release segment described previously. The inclusion of a second aroma release segment further improves the administration of aroma to the consumer during smoking.

Preferentemente, el segundo segmento de liberaci6n de aroma comprende una hoja de tabaco. La hoja de tabaco puede estar picada, cortada, o de otro modo presentar su tamafo reducido. Preferentemente, la hoja de tabaco se encuentra finamente cortada y mas preferentemente, la hoja de tabaco presenta una anchura de corte de aproximadamente 0,4 mm. Preferably, the second aroma release segment comprises a tobacco leaf. The tobacco leaf may be chopped, cut, or otherwise have its reduced size. Preferably, the tobacco leaf is finely cut and more preferably, the tobacco leaf has a cutting width of approximately 0.4 mm.

Preferentemente, la hoja de tabaco del segundo segmento de liberaci6n de aroma esta seca. Preferentemente, el contenido de humedad de la hoja de tabaco es de aproximadamente 15 % o menos en peso. Preferably, the tobacco leaf of the second aroma release segment is dry. Preferably, the moisture content of the tobacco leaf is about 15% or less by weight.

Preferentemente, la longitud del segundo segmento de liberaci6n de aroma se encuentra entre aproximadamente 6 mm y aproximadamente 12 mm, mas preferentemente entre aproximadamente 6 mm y aproximadamente 10 mm. Preferably, the length of the second aroma release segment is between about 6 mm and about 12 mm, more preferably between about 6 mm and about 10 mm.

El segundo segmento de liberaci6n de aroma puede incluir una hoja de tabaco sobre la cual se ha aplicado una cobertura que comprende, por ejemplo, azucares o humectantes. The second segment of aroma release may include a tobacco leaf on which a covering comprising, for example, sugars or humectants has been applied.

Se describe mas la invenci6n, unicamente a modo de ejemplo, haciendo referencia a los dibujos adjuntos, en los que: The invention is described further, by way of example only, with reference to the accompanying drawings, in which:

Las Figuras 1 y 3 muestras vistas laterales de tres cigarrillos con filtro que comprenden filtros de multicomponente de acuerdo con las realizaciones primera, segunda y tercera, respectivamente, del primer aspecto de la presente invenci6n; Figures 1 and 3 show side views of three filter cigarettes comprising multicomponent filters according to the first, second and third embodiments, respectively, of the first aspect of the present invention;

Las Figuras 4 y 7 muestran secciones esquematicas de corte longitudinal de cuatro cigarrillos con filtro que comprenden filtros de multi-componente de acuerdo con realizaciones cuarta a septima, respectivamente, de la presente invenci6n; y Figures 4 and 7 show schematic sections of longitudinal section of four filter cigarettes comprising multi-component filters according to fourth to seventh embodiments, respectively, of the present invention; Y

La Figura 8 muestra una vista lateral de cigarrillo con filtro que comprende un filtro multi-componente de acuerdo con una realizaci6n alternativa de la presente invenci6n. Figure 8 shows a side view of a cigarette with filter comprising a multi-component filter in accordance with an alternative embodiment of the present invention.

Los cigarrillos con filtro mostrados en las Figuras 1 a 8 tiene varios componentes en comun y se ha otorgado a estos componentes los mismos numeros de referencia. En cada una de las vistas laterales, las partes se han separado para ilustrar los detalles interiores del filtro multi-componente. The filter cigarettes shown in Figures 1 to 8 have several components in common and these components have been given the same reference numbers. In each of the side views, the parts have been separated to illustrate the interior details of the multi-component filter.

De manera general, cada cigarrillo con filtro comprende un cilindro 2 enrollado alargado unido a un extremo del filtro 4 de multi-componente, cilindrico, alargado y alineado en la direcci6n axial. El cilindro 2 de tabaco enrollado y el filtro multi-componente 4 se encuentran unidos de manera convencional por medio de papel de uni6n 6, que circunscribe toda la longitud del filtro multi-componente y una parte adyacente del cilindro 2 de tabaco enrollado. Con el fin de ventilar el humo de la corriente principal producido durante la combusti6n del cilindro 4 de tabaco enrollado con aire ambiente, se proporcionan una pluralidad de perforaciones anulares 8 a traves del papel de uni6n 6 en un punto a lo largo del filtro multi-componente 4. In general, each filter cigarette comprises an elongated rolled cylinder 2 attached to one end of the multi-component, cylindrical, elongated filter 4 aligned in the axial direction. The rolled tobacco cylinder 2 and the multi-component filter 4 are conventionally connected by means of joining paper 6, which circumscribes the entire length of the multi-component filter and an adjacent part of the rolled tobacco cylinder 2. In order to vent the smoke from the main stream produced during combustion of the rolled tobacco cylinder 4 with ambient air, a plurality of annular perforations 8 are provided through the bonding paper 6 at a point along the multi-filter component 4.

El filtro multi-componente 4 del cigarrillo con filtro 10 de acuerdo con una primera realizaci6n de la invenci6n mostrado en la Figura 1 incluye dos segmentos en base a una relaci6n de extremo a extremo en contacto uno con otro: un segmento 12 de extremo para la boca, distante del cilindro 2 de tabaco enrollado; y un segmento 14 de liberaci6n de aroma, ubicada aguas arriba del segmento 12 de extremo para la boca y adyacente a y en contacto con el cilindro 2 de tabaco enrollado. El segmento 12 de extremo para la boca comprende un tap6n de filtro de acetato de celulosa de baja eficacia de filtraci6n plastificado con triacetato de glicerol. El segmento 14 de liberaci6n de aroma comprende un tap6n de filtro de acetato de celulosa con una hoja de menta seca que presenta una anchura de corte de entre 1 mm y 2 mm distribuida de forma considerablemente uniforme a traves del mismo. El tap6n de filtro de acetato de celulosa incluye 5% en peso de plastificante de triacetato de glicerol. The multi-component filter 4 of the filter cigarette 10 according to a first embodiment of the invention shown in Figure 1 includes two segments based on an end-to-end relationship in contact with each other: an end segment 12 for the mouth, distant from cylinder 2 of rolled tobacco; and an aroma release segment 14, located upstream of the mouth end segment 12 and adjacent to and in contact with the rolled tobacco cylinder 2. The end segment 12 for the mouth comprises a cellulose acetate filter cap of low filtration efficiency plasticized with glycerol triacetate. The aroma release segment 14 comprises a cellulose acetate filter cap with a dried mint leaf having a cutting width of between 1 mm and 2 mm distributed substantially evenly therethrough. The cellulose acetate filter cap includes 5% by weight of glycerol triacetate plasticizer.

En una realizaci6n alternativa de la presente invenci6n (no mostrada), el segmento 12 de extremo para la boca del filtro multi-componente 4 mostrado en la Figura 1 se sustituye por un rebaje, que no presenta considerablemente eficacia de filtraci6n, formado por medio del papel de uni6n 6. In an alternate embodiment of the present invention (not shown), the mouth end segment 12 of the multi-component filter 4 shown in Figure 1 is replaced by a recess, which does not have a considerable filtration efficiency, formed by means of the joining paper 6.

El filtro multi-componente 4 del cigarrillo con filtro 20 mostrado en la Figura 2 es de construcci6n similar al filtro multicomponente 4 del cigarrillo con filtro 10 mostrado en la Figura 1 y descrito anteriormente. No obstante, el segmento 12 de extremo para la boca del cigarrillo con filtro 10 de la Figura 2 comprende ademas un hilo 22 de algod6n central cargado con mentol que se extiende en la direcci6n axial a traves del tap6n de filtro de acetato de celulosa, paralelo al eje longitudinal del cigarrillo con filtro 20. The multi-component filter 4 of the cigarette with filter 20 shown in Figure 2 is similar in construction to the multi-component filter 4 of the cigarette with filter 10 shown in Figure 1 and described above. However, the end segment 12 for the mouth of the filter cigarette 10 of Figure 2 further comprises a central cotton yarn 22 loaded with menthol extending in the axial direction through the cellulose acetate filter cap, parallel to the longitudinal axis of the cigarette with filter 20.

El cigarrillo con filtro 30 que se muestra en la Figura 3 presenta un filtro multi-componente 4 que incluye tres segmentos en base a un relaci6n de extremo a extremo que se encuentran en contacto uno con el otro: un segmento 12 de extremo para la boca, distante del cilindro de tabaco 12; un segmento 14 de liberaci6n de aroma ubicado aguas arriba del segmento de extremo para la boca; y un segmento 32 de extremo de cilindro, ubicado aguas arriba del segmento 14 de liberaci6n de aroma y adyacente y en contacto con el cilindro 2 de tabaco enrollado. El segmento 12 de extremo para la boca y el segmento 14 de liberaci6n de aroma son de la misma construcci6n que se ha descrito anteriormente para el cigarrillo con filtro 10 mostrado en la Figura 1. The cigarette with filter 30 shown in Figure 3 has a multi-component filter 4 that includes three segments based on an end-to-end relationship that are in contact with each other: an end-of-mouth segment 12 , distant from the tobacco cylinder 12; an aroma release segment 14 located upstream of the mouth end segment; and a cylinder end segment 32, located upstream of the aroma-releasing and adjacent segment 14 and in contact with the rolled tobacco cylinder 2. The mouth end segment 12 and the aroma release segment 14 are of the same construction as described above for the filter cigarette 10 shown in Figure 1.

El segmento 32 de extremo de cilindro comprende un tap6n de filtro de acetato de celulosa de eficacia de filtraci6n media a elevada que, durante el uso, filtra parcialmente los componentes de la fase de particulas del humo de la corriente principal. The cylinder end segment 32 comprises a cellulose acetate filter cap of medium to high filtration efficiency which, during use, partially filters the components of the smoke particle phase of the main stream.

El filtro multi-componente 4 del cigarrillo con filtro 40 que se muestra en la Figura 4 es de construcci6n similar al filtro multi-componente 4 del cigarrillo con filtro 30 mostrado en la Figura 3 y descrito anteriormente. No obstante, el segmento 12 de extremo para la boca del cigarrillo con filtro 40 que se muestra en la Figura 4 comprende un hilo 22 de algod6n centra cargado con mentol que se extiende en la direcci6n axial a traves del tap6n del filtro de acetato de celulosa, paralelo al eje longitudinal del cigarrillo con filtro 40. The multi-component filter 4 of the filter cigarette 40 shown in Figure 4 is similar in construction to the multi-component filter 4 of the filter cigarette 30 shown in Figure 3 and described above. However, the end segment 12 for the cigarette mouth with filter 40 shown in Figure 4 comprises a central cotton yarn 22 loaded with menthol extending in the axial direction through the cellulose acetate filter cap , parallel to the longitudinal axis of the cigarette with filter 40.

El filtro multi-componente 4 del cigarrillo con filtro 50 que se muestra en la Figura 5 es tambien de construcci6n similar al filtro multi-componente 4 del cigarrillo con filtro 30 que se muestra en la Figura 3 y se ha descrito anteriormente. No obstante, el segmento 32 de extremo de cilindro del filtro multi-componente 4 del cigarrillo con filtro 50 mostrado en la Figura 5 comprende un hilo 52 de algod6n central cargado con mentol que se extiende en la direcci6n axial a traves del tap6n del filtro de acetato de celulosa, en paralelo al eje longitudinal del cigarrillo con filtro The multi-component filter 4 of the filter cigarette 50 shown in Figure 5 is also similar in construction to the multi-component filter 4 of the filter cigarette 30 shown in Figure 3 and described above. However, the cylinder end segment 32 of the multi-component filter 4 of the filter cigarette 50 shown in Figure 5 comprises a central cotton thread 52 loaded with menthol extending in the axial direction through the filter cap of cellulose acetate, parallel to the longitudinal axis of the cigarette with filter

50. fifty.

El filtro multi-componente 4 del cigarrillo con filtro 60 que se muestra en la Figura 6 es, de nuevo, de construcci6n similar al filtro multi-componente 4 del cigarrillo con filtro 30 que se muestra en la Figura 3 y se ha descrito anteriormente. No obstante, tanto el segmento 32 de extremo de cilindro como el segmento 12 de extremo para la boca del filtro multi-componente 4 del cigarrillo con filtro 60 mostrado en la Figura 6 comprenden hilos 22, 52 de algod6n central cargados con mentol que se extienden en la direcci6n axial a traves del tap6n del filtro de acetato de celulosa, en paralelo al eje longitudinal del cigarrillo con filtro 60. The multi-component filter 4 of the filter cigarette 60 shown in Figure 6 is again similar in construction to the multi-component filter 4 of the filter cigarette 30 shown in Figure 3 and described above. However, both the cylinder end segment 32 and the mouth end segment 12 of the multi-component filter 4 of the filter cigarette 60 shown in Figure 6 comprise central cotton threads 22, 52 loaded with menthol extending in the axial direction through the cellulose acetate filter cap, parallel to the longitudinal axis of the cigarette with filter 60.

En realizaciones alternativas de la presente invenci6n (no mostradas), los segmentos 32 de extremo de cilindro de In alternative embodiments of the present invention (not shown), the cylinder end segments 32 of

los filtros de multi-componente de los cigarrillos con filtro, 40, 50, 60 mostrados en las Figuras 4, 5 y 6 pueden ademas comprender a menos un absorbente capaz de retirar los constituyentes de la fase gas del humo de la corriente principal extraido a traves de los filtros 4. Al menos el absorbente es, por ejemplo, carbono activado, aluminio activado, zeolitas o sepiolitas, proporcionados sobre el filtro de acetato de celulosa. the multi-component filters of the filter cigarettes, 40, 50, 60 shown in Figures 4, 5 and 6 may also comprise at least one absorbent capable of removing the constituents of the gas phase of the smoke from the mainstream drawn to through the filters 4. At least the absorbent is, for example, activated carbon, activated aluminum, zeolites or sepiolites, provided on the cellulose acetate filter.

El filtro multi-componente 4 del cigarrillo con filtro 70 mostrado en la Figura 7 es de construcci6n similar al filtro multicomponente 4 del cigarrillo con filtro 50 mostrado en la Figura 5 y descrito anteriormente. No obstante, el segmento 32 de extremo de cilindro del filtro multi-componente 4 del cigarrillo con filtro 70 que se muestra en la Figura 7 comprende una pluralidad de Viscopearls® cargadas con mentol, en lugar del hilo 52 de algod6n central. The multi-component filter 4 of the filter cigarette 70 shown in Figure 7 is similar in construction to the multi-component filter 4 of the filter cigarette 50 shown in Figure 5 and described above. However, the cylinder end segment 32 of the multi-component filter 4 of the filter cigarette 70 shown in Figure 7 comprises a plurality of Viscopearls® loaded with menthol, instead of the central cotton yarn 52.

En realizaciones alternativas de la presente invenci6n (no mostradas), los segmentos 12 de extremo para la boca de los filtros de multi-componente 4 de los cigarrillos con filtro 30, 40, 50, 60, 70 mostrados en las Figuras 3 a 7 son sustituidos por un rebaje, que no presenta eficacia de filtraci6n considerable, formado por medio del papel de uni6n In alternative embodiments of the present invention (not shown), the mouth end segments 12 of the multi-component filters 4 of the filter cigarettes 30, 40, 50, 60, 70 shown in Figures 3 to 7 are replaced by a recess, which does not show considerable filtration efficiency, formed by means of the bonding paper

6. 6.

El cigarrillo con filtro 90 que se muestra en la Figura 8 presenta un filtro multi-componente 4 que incluye cuatro segmentos en base a un relaci6n de extremo a extremo que se encuentran en contacto uno con el otro; un segmento 12 de extremo para la boca, distante del cilindro de tabaco 2; un primer segmento 92 de liberaci6n de aroma ubicada aguas arriba del segmento de extremo para la boca, un segundo segmento 14 de liberaci6n de aroma ubicado aguas arriba del primer segmento de liberaci6n de aroma y un segmento 32 de extremo de cilindro, ubicado aguas arriba del segundo segmento 14 de liberaci6n de aroma y adyacente y en contacto con el cilindro 2 de tabaco enrollado. El segmento 12 de extremo para la boca , el segundo segmento 14 de liberaci6n de aroma y el segmento 32 de extremo de cilindro son de la misma construcci6n que el segmento de extremo para la boca; el segmento de liberaci6n de aroma y el segmento de extremo de cilindro previamente descritos para los cigarrillos con filtro 30, 40, 50, 60, 70 mostrados en las Figuras 3 a 7. El segundo segmento 92 de liberaci6n de aroma comprende un tap6n de tabaco cortado fino y empaquetado de forma densa. The filter cigarette 90 shown in Figure 8 has a multi-component filter 4 that includes four segments based on an end-to-end relationship that are in contact with each other; an end segment 12 for the mouth, distant from the tobacco cylinder 2; a first aroma release segment 92 located upstream of the mouth end segment, a second aroma release segment 14 located upstream of the first aroma release segment and a cylinder end segment 32, located upstream of the second segment 14 of aroma release and adjacent and in contact with the rolled tobacco cylinder 2. The mouth end segment 12, the second aroma release segment 14 and the cylinder end segment 32 are of the same construction as the mouth end segment; the aroma release segment and the cylinder end segment previously described for the filter cigarettes 30, 40, 50, 60, 70 shown in Figures 3 to 7. The second aroma release segment 92 comprises a tobacco cap Thinly cut and densely packed.

Para formar los cigarrillos con filtro, 10, 20, 30, 40, 50, 60, 70, 90 de acuerdo con las realizaciones de la presente invenci6n que se muestran en las Figuras 1 a 8, se producen filtros de multi-componente 4 y posteriormente se unen a los cilindros 2 de tabaco enrollado, que se producen de forma convencional, por medio del papel de uni6n 6 usando un equipamiento convencional de preparaci6n de cigarrillos. In order to form the filtered cigarettes, 10, 20, 30, 40, 50, 60, 70, 90 according to the embodiments of the present invention shown in Figures 1 to 8, multi-component filters 4 and subsequently they are joined to the rolls 2 of rolled tobacco, which are produced in a conventional manner, by means of the joining paper 6 using conventional cigarette preparation equipment.

Para producir cada uno de los filtros de multi-componente 4, se producen, de forma convencional, cilindros continuos separados que comprenden unidades multiples de cada segmento 12, 14, 32, 92 del filtro multi-componente 4 y posteriormente se combinan para formar un cilindro de filtro continuo que comprenden unidades multiples del filtro multi-componente 4. Posteriormente, se separa el cilindro de filtro continuo a intervalos regulares por medio de un mecanismo de corte para dar lugar a una sucesi6n de filtros de multi-componente discretos. To produce each of the multi-component filters 4, conventional continuous separate cylinders comprising multiple units of each segment 12, 14, 32, 92 of the multi-component filter 4 are produced and subsequently combined to form a Continuous filter cylinder comprising multiple units of the multi-component filter 4. Subsequently, the continuous filter cylinder is separated at regular intervals by means of a cutting mechanism to give rise to a succession of discrete multi-component filters.

Claims (9)

REIVINDICACIONES 1.-Un filtro multi-componente (4) para un producto para fumar que comprende: 1.-A multi-component filter (4) for a smoking product comprising: un segmento (12) de extremo para la boca; y an end segment (12) for the mouth; Y un segmento (14) de liberaci6n de aroma aguas arriba el segmento (12) de extremo para la boca, an aroma release segment (14) upstream the end segment (12) for the mouth, 5 en el que el segmento de liberaci6n de aroma (14) comprende un tap6n de material de filtraci6n fibroso, una hoja de menta distribuida a traves del material de filtraci6n fibroso y un plastificante de filtro aplicado al material de filtraci6n fibroso, en el que la cantidad de plastificante de filtro del segmento de liberaci6n de aroma es de hasta 5 % en peso del material de filtraci6n fibroso. 5 in which the aroma release segment (14) comprises a cap of fibrous filter material, a mint leaf distributed through the fibrous filter material and a filter plasticizer applied to the fibrous filter material, in which the Amount of filter plasticizer of the aroma release segment is up to 5% by weight of the fibrous filtration material. 2. Un filtro multi-componente (4) de acuerdo con la reivindicaci6n 1, en el que el plastificante de filtro es triacetato de 10 glicerol. 2. A multi-component filter (4) according to claim 1, wherein the filter plasticizer is 10 glycerol triacetate.
3. 3.
El filtro multi-componente (4) de acuerdo con la reivindicaci6n 2, en el que la cantidad de triacetato de glicerol se encuentra entre 0,5 % y 1,5 % en peso de la hoja de menta. The multi-component filter (4) according to claim 2, wherein the amount of glycerol triacetate is between 0.5% and 1.5% by weight of the mint leaf.
4. Four.
El filtro multi-componente (4) de acuerdo con la reivindicaci6n 1, 2 6 3 en el que el segmento (14) de liberaci6n de aroma comprende un tap6n de filtro de acetato de celulosa con la hoja de menta distribuida sobre el mismo. The multi-component filter (4) according to claim 1, 2 or 3 wherein the aroma release segment (14) comprises a cellulose acetate filter cap with the mint leaf distributed thereon.
15 5. El filtro multi-componente (4) de acuerdo con cualquiera de las reivindicaciones anteriores que comprende un segmento (32) de extremo de cilindro aguas arriba del segmento (14) de liberaci6n de aroma. The multi-component filter (4) according to any of the preceding claims comprising a cylinder end segment (32) upstream of the aroma release segment (14). 6. El filtro multi-componente de acuerdo con cualquiera de las reivindicaciones anteriores que comprende un segmento de liberaci6n de aroma entre el segmento de extremo para la boca y el segmento de liberaci6n de aroma. 6. The multi-component filter according to any one of the preceding claims comprising an aroma release segment between the mouth end segment and the aroma release segment. 7. El filtro multi-componente (4) de acuerdo con cualquiera de las reivindicaciones anteriores en el que el segmento 20 (12) de extremo para la boca comprende un material de filtraci6n. 7. The multi-component filter (4) according to any of the preceding claims wherein the mouth end segment 20 (12) comprises a filtration material. 8. El filtro multi-componente (4) de acuerdo con cualquiera de las reivindicaciones anteriores en el que el segmento 8. The multi-component filter (4) according to any of the preceding claims in which the segment (12) de extremo para la boca comprende al menos un aromatizante liquido. (12) mouth end comprises at least one liquid flavoring. 9. Un producto para fumar (10)(20)(30)(40)(50)(60)(70)(80) que comprende: un cilindro enrollado de material (2) apto para fumar; y 9. A smoking product (10) (20) (30) (40) (50) (60) (70) (80) comprising: a rolled cylinder of material (2) suitable for smoking; Y 25 un filtro multi-componente (4) de acuerdo con cualquiera de las reivindicaciones anteriores unido al rodillo de material (2) apto para fumar por medio de un papel de uni6n (6). A multi-component filter (4) according to any of the preceding claims attached to the roller of material (2) suitable for smoking by means of a joining paper (6). 10. Un producto para fumar (10)(20)(30)(40)(50)(60)(70)(80) de acuerdo con la reivindicaci6n 9, en el que el segmento (12) de extremo para la boca del filtro multi-componente (4) es un tubo hueco o rebaje. 10. A smoking product (10) (20) (30) (40) (50) (60) (70) (80) according to claim 9, wherein the end segment (12) for the mouth The multi-component filter (4) is a hollow tube or recess.
ES08827853T 2007-08-17 2008-08-14 Multi-component filter for smoking product Active ES2386187T3 (en)

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EP07253246A EP2025251A1 (en) 2007-08-17 2007-08-17 Multi-component filter for a smoking article
PCT/IB2008/002887 WO2009024866A2 (en) 2007-08-17 2008-08-14 Multi-component filter for a smoking article

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