JP2003500079A - Filter cigarette with cigarette filter - Google Patents

Abstract

  (57) [Summary] The present invention relates to a filter cigarette comprising a tobacco filter and a method for producing such a filter cigarette. A filter cigarette having a tobacco filter of the present invention can include a tobacco fiber bundle surrounded by cigarette paper, a filter made from aromatic tobacco, and a filter vent. According to the method of making a filter cigarette of the present invention, the tobacco selected for the filter, or a portion thereof, was subjected to a heat treatment during the tobacco preparation process.

Description

Detailed Description of the Invention

The present invention relates to a filter cigarette having a cigarette filter and a method for producing such a filter cigarette.

It has long been known that tobacco can also be used as a filter material for smoking products. However, compared to other conventional filter materials such as cellulose (paper) or cellulose acetate, tobacco has a significantly lower retention capacity for condensate and nicotine with the same suction resistance. Furthermore, when using conventional tobacco mixtures such as those used for cigarettes, cellulose filters or filters made from cellulose acetate have the usual suction resistance (eg 21 mm).
Between 50 mm WC and 100 mm WC) is not easy to achieve.

To overcome this inconvenience, various solutions have already been proposed, one of which is to manufacture the filter part from cut tobacco (Ripentabak). However, this resulted in a bad taste. Another proposal was to make the filter part from an expandertem tobacco, but this only resulted in a very low holding capacity and thus insufficient filter efficiency. Finally, very finely cut tobacco has also been proposed as a filter element, but this cannot be processed on conventional machines, thus leading to high filter costs.

Therefore, it is an object of the present invention to make a filter from tobacco for a smoking product that does not have the disadvantages mentioned in the state of the art.

This object is achieved by a filter cigarette having a tobacco filter with the following characteristics: tobacco fiber bundles surrounded by cigarette paper; wherein the tobacco mixture of tobacco fiber bundles is cut between 15 and 30%. Intermediate winding stem (g
escnittener Mitterrippe); and the smoking condensate yield of tobacco fiber bundles is between 15 and 19 mg for 63 mm long fiber bundles and 55 mm long smoking; 50 mm WC and 100 mm WC at 21 mm length. Having a filter made from fragrant tobacco, having a suction resistance between; and having a circumferentially extending filter ventilation zone; the degree of filter ventilation is 30-70%, and the filter cigarette Does not use cut mid-rolls and does not use reconstituerten tobacco having a cut width of 0.3-0.6 mm; as well as this filter is 350-450 g / cm ^3. It is characterized by having a tobacco packing density of.

Therefore, since the taste of smoking is very strongly characterized by the filter material,
The purpose is achieved by using aromatic tobacco in the tobacco filter. By specially treating the selected tobaccos, the beneficial taste-improving effect can be further clearly increased. To this end, the tobacco material or portion thereof selected is subjected to the heat treatment described below.

Heat Treatment During the tobacco preparation process, the tobacco is kept between 60 ° C and 150 ° C, preferably 8 ° C.
The tobacco temperature is raised between 0 ° C. and 130 ° C. for a period of between 1 minute and a maximum of 15 minutes. During this period, the relative humidity is set to 40 to 80%, preferably 50 to 70%. This results in significantly improved aroma transfer from the filter tobacco to the smoke passing through it. This effect can be selectively influenced and increased by adding a suitable casing material. Somewhat finer width cuts of 0.3-0.6 mm, which can be further processed on standard machines, are selected (normal fiber bundle cut tobacco is 0.7-1.0 mm). , 50-1
A suction resistance standard for a 00 mm WC filter can be achieved and the holding capacity is significantly increased. Such drag resistance is also commonly referred to as "normal" or normal drag resistance. Nevertheless, the retention capacity is still clearly low compared to conventional filter materials (cellulose acetate reaches about 30-60%, whereas the range for tobacco filters is only about 25-35%). This holding capacity can be supplemented by using a fiber bundle mixture with a significantly reduced condensation power. This means that when tobacco fiber bundles are used, about 16 mg of condensate is obtained instead of about 23 mg of condensate when smoked in a smoking machine. Such mixtures (eg, which can be made with a high proportion of cut curls or cheap tobacco) are not particularly good in taste, but when passed through a tobacco filter the smoking taste is surprising. You should get a good fragrance.

[Procedure amendment]

[Submission date] December 14, 2001 (2001.12.14)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Contents of correction]

[Claims]

─────────────────────────────────────────────────── ─── Continued front page    (81) Designated countries EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, I T, LU, MC, NL, PT, SE), OA (BF, BJ , CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, K E, LS, MW, MZ, SD, SL, SZ, TZ, UG , ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, C H, CN, CR, CU, CZ, DE, DK, DM, DZ , EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, K G, KP, KR, KZ, LC, LK, LR, LS, LT , LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, S D, SE, SG, SI, SK, SL, TJ, TM, TR , TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW F term (reference) 4B045 AA41 AB16 BA02 BB03 BC06                       BC12

Claims (2)

[Claims] 1. A filter cigarette having a cigarette filter, comprising:
The following: A tobacco fiber bundle surrounded by cigarette paper, wherein the tobacco mixture of the tobacco fiber bundle comprises a proportion of 15-30% of cut intermediate curls and smoking condensation of the tobacco fiber bundle. Tobacco fiber bundles, the yield of which is a condensate between 15 mg and 19 mg for a fiber bundle length of 63 mm and a smoking length of 55 mm; a suction resistance between 50 mm WC and 100 mm WC at a length of 21 mm. A filter manufactured from aromatic tobacco having: and a filter vent which extends in the circumferential direction, wherein the filter vent has a degree of filter ventilation of 30 to 70%. 0.3 to 0 without using a cut intermediate coil
． A filter cigarette with a tobacco filter, characterized in that it does not use reconstituted tobacco with a cut width of 6 mm; and that the filter has a tobacco packing density of 350-450 g / cm ³ . 2. A method of manufacturing the filter cigarette of claim 1, wherein the tobacco used to manufacture the tobacco filter comprises:
During the tobacco manufacturing process, between 60 ° C and 150 ° C, preferably 80-130 ° C
Tobacco temperature of 1 to a maximum of 20 minutes and being subjected to a relative humidity of 40 to 80%, preferably 50 to 70% during that period. Method.