Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
• • 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
  • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution

Definitions

• the invention relates to a ventilated filter cigarette with a predominant "American blend" taste and is based on the already inventive object of proposing such a cigarette exclusively based on Virginia tobacco types, the main stream smoke of which has a condensate / nicotine ratio of 5: 1 to 9: 1 with a condensate value according to DIN 10240 of at most 10 mg, a pH value of over 6.0 and a pollutant index (SI) according to Herzfeld below 35.
• SI pollutant index
• Cigarettes with the typical "American blend" taste are preferred by certain consumer groups, but because of the Burley tobacco used, they have the disadvantage that, because of the higher protein content, they give rise to more disruptive factors with regard to the aroma and additionally have a significantly higher nitrate content. This leads to a relatively high pollutant index according to Herzfeld.
• a high filter ventilation can result in such a dilution of the main flow smoke that the values determined according to the standards result in low condensate and nicotine values and a low pollutant index.
• such cigarettes have the disadvantage of a low tobacco taste, an aroma deficit, show a low degree of saturation and consequently have only a low level of consumer acceptance.
• EU-A 0 255 114 it is known to provide special filter constructions and in particular those with chamber filters which are said to result in improved taste properties and a more favorable nicotine / condensate ratio with a maximum of 8 mg of condensate.
• ventilated mono-filter cigarettes according to DE-OS 30 11 959 are to lead to specially designed groove filters and the resulting lashing movement of the main stream smoke emerging from the filter body to cigarettes with a stronger aroma sensation with lower nicotine and condensate values.
• filter cigarettes with such a construction are expensive the flavor did not change in type, but at most weakened.
• the taste characteristics of the existing tobacco mixture can be found in a more or less weakened form, naturally also in the mainstream smoke and, in the opinion of the average expert, cannot be converted into another taste.
• the inventive task mentioned at the outset is also intended to achieve a ventilated filter cigarette with low condensate values, and in particular a low pollutant index, without having to accept the disadvantages known to the person skilled in the art, such as a low tobacco taste, aroma deficit, low degree of saturation and thus one poor consumer acceptance with relatively production-intensive measures.
• a happy grip gives a ventilated filter cigarette with a predominant "American blend” taste with condensate / nicotine values or pollutant values completely atypical for this taste , namely through a partially (max.
• volume-activated tobacco mixture with appropriately adapted strand equipment and strand density, through the use of an inexpensive filter with high draw resistance and preferably a monoacetate filter with high retention capacity with the resulting high cigarette end draw resistance Selection of virgin Virginia tobacco of high quality with a high nicotine and sugar content, which result in a low pollutant index with a high degree of saturation even with a relatively low degree of filter ventilation, whereby - completely unexpected for the expert - an intense "American blend" flavor with only one Use of virgin Virginia tobacco is obtained.
• the nicotine content of natural Virginia tobacco influences the taste component "reaction” or “strength” and is in the range of 1.7 to 2.3%, based on the dry substance, of commercially available cigarettes.
• a high to unusually high nicotine content of 2 to 3.5% by weight is intentionally provided.
• the packing density of the filling tobacco for standard cigarettes is in a range from 220 to 280 mg / cm3, corresponding to a cigarette hardness range of approx. 2.5 to 1.9 mm ET (test stamp penetration depth) according to the Reemtsma hardness measuring device, that in principle the digital -Densimeter DD-30 (with cigarette equipment) from Heinrich Borgwaldt / Hamburg.
• a "sharper" taste With a low packing density in the lower range of 150 mg / cm 3, a "sharper" taste generally arises, while in the usual range from 220 to 280 mg, the strand absorption increases and thus suppresses or levels out the "sharper” taste by practically additional filter action. This can also apply to other taste impressions.
• the air permeability of the cigarette paper in CORESTA values according to DIN / ISO 2965 for commercially available cigarettes is in a range from 25 to 70, whereby at low CORESTA values there is only a low smoldering ability and only little ventilation, and consequently only a small dilution of the smoke the Cigarette paper is given, while at high CORESTA values a high glow rate is made possible with strong ventilation.
• this parameter is set below the market range of at least 25 CORESTA, namely to a value of 3 to 20.
• fine-titered cellulose acetate filters provided with customary hardnesses are used without flavor-changing additives, but the parameters to be observed here are also of considerable influence.
• the individual titer of the filter material is approximately 2.5 to 3.5 denier, it being known that a low individual titer of approximately 1.3 denier results in a relatively high sorption and a relatively large retention with a relatively high tensile resistance, while correspondingly higher denier numbers with otherwise the same parameters lead to lower sorption and lower retention and lower tensile resistance.
• the individual titer in the cigarettes according to the invention is in a range from 1.3 to 2.5 denier, that is to say below the customarily used single titer.
• the total titer influencing the absolute tensile resistance is in the range of 32,000 to 40,000 denier for standard cigarettes, whereby the absolute sorption or retention or the absolute tensile resistance - neglecting the ripple index - is directly proportional to the total titer.
• the resulting filter draw resistance is in the range of 50 to 70 daPa for commercially available cigarettes and results in a correspondingly small change in taste at low values and a significant change in taste towards "light" at higher values.
• the tensile resistances to be coordinated over the total titer in the case of the extremely low individual titer values required for the invention are 95-160 daPa in a deliberately high, unusual range.
• the degree of additional air ie the ratio of additional air to main flow smoke, is in the range of 10 to 50% for standard cigarettes; an increase in the supply air to, for example, 75% results in a strong change in taste in the direction of "super-mild".
• the supply air is at a filter ventilation level of 20 to 45%, that is to say in a medium range.
• the final pull resistance of the majority of commercially available filter cigarettes is in a range from 80 to 120 daPa. With conventional light cigarettes, higher ultimate tensile resistances have an unusual and therefore negative effect on consumers.
• the final pull resistance of 100 to 160 daPa selected for the cigarette according to the invention is intentionally in the upper range in order to influence the pollutant index. Surprisingly, however, the unusually high final pull resistance of the cigarette according to the invention was not perceived as negative in in-house tests.
• Test cigarettes were made from pure Virginia tobacco without flavor-changing additives and without flavoring agents, but with the usual proportions of a humectant.
• the tobacco feed weight of the strands produced in the usual format was 690 mg; the cigarette paper used had a permeability of 20 CORESTA units; the packing density of the filling tobacco was set to 220 mg / cm3, the strand having a well-stuffed degree of filling with a usual hardness value of 2.2 mm ET.
• the hardness of standard cigarettes measured with the same hardness measuring device is between 1.9 and 2.5 mm ET in a standard climate.
• a monoacetate filter with a titer of 1.5 Y / 46,000 SK denier was used as the filter, its tensile resistance being 21 mm in length and approximately 7.8 mm in diameter being approximately 118 daPa.
• the format of the finished filter cigarette was 7.90 mm ⁇ x 84 mm in length; the degree of additional air was 37% and the final pull resistance was 130 daPa.
• the cigarette smoked according to DIN 10240 produced 7.95 mg condensate and 1.0 mg nicotine with a number of 10 puffs, which corresponded to a K / N ratio of approx. 8: 1.
• the pH of this cigarette was 6.4. In view of the typical smoke pH value of a Virginia cigarette of at most 5.5, this value is exceptionally high.
• the Herzfeld pollutant index determined for these cigarettes was approx. 31 and was calculated using the following formula:
• a tobacco stick made of the same natural Virginia tobacco mixture with the same packing density was used with a cigarette paper with the same low air permeability of 20 CORESTA, but with a conventional ventilated cellulose acetate filter with medium single and total titer and corresponding medium tensile resistance and a consequent result medium filter retention, but with a comparatively high degree of filter ventilation, i.e. a high smoke dilution.
• This cigarette which was smoked in accordance with DIN 10240, produced condensate values comparable to those of the filter cigarette according to Example 1. With a cigarette of this type, as was actually expected, there was no typical "American blend" taste; it tasted significantly like Virginia tobacco, albeit fuller and more aromatic than a conventional Virginia cigarette.
• Example 1 In a further sensory comparison test, a filter according to Example 1 was combined with a conventional Virginia strand, a clear Virginia taste note being obtained, but the taste performance of which was unsatisfactory and weak.

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• Cigarettes, Filters, And Manufacturing Of Filters (AREA)

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Publications (2)

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Citations (5)

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• 1988
  • 1988-11-09 DE DE3837930A patent/DE3837930C1/de not_active Expired
• 1989
  • 1989-10-21 AT AT89119569T patent/ATE77036T1/de not_active IP Right Cessation
  • 1989-10-21 EP EP89119569A patent/EP0368065B1/fr not_active Expired - Lifetime
  • 1989-11-07 CA CA002002441A patent/CA2002441C/fr not_active Expired - Fee Related
  • 1989-11-08 US US07/433,380 patent/US5033484A/en not_active Expired - Fee Related

Patent Citations (5)

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