DE2101597A1 - Cigarette - Google Patents

Description

PATENT LAWYERS

dr. W. Schalk dipl.-ing. P. Wirth dipl.-ing. G. Danmenberg DR. V. SCHMIED-KOWARZIK ■ DR. P. WEINHOLD · DR: D. GUDEL

6 FRANKFURT AM MAIN

CR. ESCHENHEIMER STRASSE 39

January 14, 1971
Gu / gm

British-American

Tobacco Company, Ltd. ^

Cigarette

The invention relates to a cigarette with a cigarette paper, which with a combustion accelerating Agent is treated. Cigarettes within the meaning of the invention are also cigars, cigarillos and other tobacco products, with or without filters or mouthpieces, wrapped in paper, with reconstituted tobacco or made of j

other material. In the following, cigarette paper also refers to any other wrapping of such smoking products Understood.

When smoking a cigarette, the amount of smoke released increases, for example, all of the particles released, tar and nicotine.

Attempts have already been made to reduce the total surrender of these shares. However, this did not address the problem takes into account the smoke ^ encbinack throughout Smoking process and also the release of these shares in the same

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to be shaped. Also were the known treatments for cigarettes, not very successful in reducing the total amount of fractions.

In contrast, the invention is based on the object of providing an improved cigarette with a new delivery characteristic propose for smoke. In particular, the cigarette according to the invention should have fewer shares in later puffs so that the fee is more like that of the early trains. This alters the release of these shares reduced, with the smoky taste at the same time Smoking the cigarette parts on the mouth side is improved.

This object is achieved according to the invention in that the combustion accelerating agent in one A plurality of discrete, distributed in the longitudinal direction of the cigarette areas is provided which, compared to the The total area of the cigarette paper is small, your size grows along the length of the cigarette paper, and when it is burning Cigarette form a plurality of openings in the cigarette paper in front of the embers, whereby they are arranged one behind the other are that the progressive embers encounter larger areas. It is thereby achieved that through the Air can enter previously burned areas, which dilutes the smoke. This increases the proportion of air also increased in the smoke drawn in by the cigarette.

So if a cigarette according to the invention is smoked, an opening is formed with progressive embers that pass through the leading glow is created in the correspondingly treated area of the cigarette paper. Through this opening or openings can then enter additional air, which dilutes the smoke.

Since the release of smoke from the tobacco at the lit end of the cigarette is initially relatively low

■ 109831 / U39

is it is preferred not this cigarette holder to get treated. The cigarette paper is therefore preferably treated in the area which is about a Third to two thirds of the total length, namely at the mouth end of the cigarette.

The combustion accelerating agent is preferably a strong, oxidizing agent that promotes combustion. Sodium chlorate is preferably used for this. However, other agents can also be used, for example potassium chlorate, alkali and alkaline perchlorates of earth metals, for example sodium, potassium and barium perchlorate, ammonium perchlorate, sodium bromate, nitrogen * Substance sodium and nitrous-acid potash. This means are absorbed by the cigarette paper, using nitric acid chemically combined with the cigarette paper can be. The amount of this remedy can be in one may vary to some extent with the particular paper and chemical used. It is often preferred to use an average amount of combustion accelerating agent that is 1/4 to 8 mg / cm of that Area of the cigarette paper on which this agent is used. In the longitudinal direction of the cigarette paper the mean should be between about 2 and 50 percent of the total area of the paper. The application points should be distributed in this area. The so pre- | parried area should preferably be about 25 to 45 percent be. In the case of sodium chlorate, a concentration of at least 0.4 mg / cm is preferred.

If the glow of a cigarette reaches an area treated in this way, the cigarette paper burns in this area faster than the other cigarette papers and that before the actual embers. When using sodium chlorate For example, this faster combustion is made possible by the decomposition of the sodium chlorate into sodium chloride and causes oxygen. This creates an opening in the

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Garette paper created in the treated area. Pulls So if you continue to work on the cigarette, air will be drawn through these openings and the smoke drawn in will be in them Dissolved air. There is a percentage drop in the smoke emitted. Training this Openings can be reinforced by leaving the areas not treated with the combustion accelerating agent of the paper can be treated with another agent which slows down burning. This will speed up of burning enlarged.

The invention is explained in more detail below on the basis of exemplary embodiments. This results in further ones important features of the invention from the following description of examples. It shows:

Fig. 1 'is a side view of a filter cigarette according to Invention with rectangular shaped treated areas;

Fig. 2 is a section along the line 2-2 of Fig. 1;

Fig. 3 is a view similar to Figure 1, wherein axially aligned parallel and interrupted strips of different lengths have been treated with the agent t.

Figure 4 is a perspective view of another cigarette with the treated areas as opposite to one another parallel rings are formed which keep a distance from one another;

Fig. 5 is a side view of another cigarette at of which the treated areas are laid out in a broken helical line, with the amount the combustion accelerating agent rises to the mouthpiece of the cigarette;

Figure 6 is a perspective view of another cigarette in which the areas are semicircular are applied, the ring thickness increasing towards the mouth end of the cigarette;

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7 shows a cigarette similar to FIG. 6, with completely formed rings instead of the half-rings are provided;

Fig. 8 is a side view of a cigarette in which the treated areas as letters are designed that there is a greater amount at the mouthpiece;

9 is a side view of a cigarette paper which is used with the accelerating agent Means is treated, with the areas provided in the manner of a modified chessboard and the treatment density to the mouthpiece the cigarette increases; ^

Fig. 10 is a side view of another cigarette paper ™ in which the treated areas are provided in a regular, modified checkerboard pattern are and

11 is a diagram showing the total amount of smoke emitted by a cigarette at a cigarette according to the invention compared to an untreated cigarette.

In FIGS. 1 to 10, position 10 denotes the tobacco rod of a cigarette, while position 11 denotes a mouthpiece at the end of the mouth of the cigarette.

In Fig. 1 a cigarette is shown, the cigarette paper by the treatment of preselected areas 13, 14, of the cigarette paper 12 is also modified. The overall arrangement created by areas 13, 14 and 15 resembles that of an elongated triangle that is interrupted in some places. So the areas 13 and 14 are trapezoidal shape, with the larger base facing the mouth end or filter. When smoking the cigarette openings are created in these areas 13, 14 and 15 by the premature burning of the paper. This off The farther the cigarette, the greater the voltages

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has finished smoking. The smoke output of a cigarette usually increases towards the end of the cigarette. This Thus, increasing the treated area towards the end levels out by and large the smoke output during the entire smoking process. In this embodiment, the cigarette holder is not treated.

FIG. 2 shows a section 20 through the tobacco which is wrapped in the cigarette paper 12. There is on the cigarette paper 12 a layer 15 of an agent which accelerates the combustion. This representation is to be understood only schematically, however. The combustion accelerating agent can also be achieved by the Paper are absorbed, so that a cut through a cigarette treated in this way does not affect the layer 15 Way of Fig. 2 would show.

In the embodiment of FIG. 3, the means is jLn Form of parallel, rectangular strips 22, 23 and 24 are provided, which extend in the axial direction of the cigarette extend and which are interrupted. The strip 24 is shorter than the strips 22 and 23, so that the Means towards the mouthpiece 11 is provided in a growing proportion.

In the embodiment according to FIG. 4, the means is in the form of circular rings 26, 27, 28, 29 and 30 that are separate from one another intended. The rings 26, 27 and 28 closest to the mouthpiece are closer to one another, see above that more air is supplied there, whereby the growth in the smoke emission at the mouthpiece is compensated.

In the embodiment of FIG. 5, the means is at Cigarette paper 12 is provided in the form of a screw 21 which is interrupted. The width of the screw band increases in the direction of the mouthpiece 11. When the embers reach the beginning of screw 21, a continuous

109831 / U39 BAD ORIGINAL

ches and progressively accelerated burning of the cigarette paper up to a point just before the mouthpiece 11. This continuous and progressively accelerated burning can also be achieved by suitable intervals between the interruptions can be achieved, the screw band then has a constant width.

Semicircular rings 31 »32, 33 and 34 passing through the given treatment with a combustion accelerating agent are obtained after the cigarette Fig. 6 is provided. The thickness of these semicircular rings increases in the direction of the mouthpiece 11. A similar Treatment is shown for the cigarette in Figure 7, but with fully closed rings.

In the embodiment of Fig. 8, printed letters are used as areas of application of the combustion accelerating agent Used means. These letters have the reference number 38. Here, too, is the size of the letters in the vicinity of the mouthpiece 11 is larger than at the front end of the cigarette.

In Fig. 9, a preferred embodiment of the subject matter of the invention is shown in which the means according to Kind of a modified checkerboard pattern is provided. In this pattern, alternating rows of larger right f corner 39 and smaller rectangles 40 are provided. The size of the rectangles 41 and 42 near the mouthpiece grows and their distance is less than that of rectangles 39 and 40. The size of the rectangles increases progressively, namely, fairy types of rectangles, both the larger and the larger the smaller one; the distance between these rectangles and the mouthpiece also decreases progressively.

Fig. 10 shows another preferred embodiment with a different checkerboard pattern. There will be alternating Rows of large squares 46 and small squares

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47 used with the oxidizing agent. The shape of the pattern and the rows are the same everywhere the large squares 49 and the small squares -50 near the mouthpiece of the cigarette are the squares 46 and 47 are the same on the cigarette holder. The distance between these rows also remains along the length of the cigarette unchanged. In this embodiment, the increase in the concentration of the agent is caused by a greater admixture this means achieved in each area towards the mouthpiece. -

Fig. 11 shows a comparison with respect to the whole Amount of smoke emitted from cigarettes that were smoked without interruption. Line 51 shows this Behavior of the total amount of smoke emitted for a cigarette with a cigarette paper that is similar to the Figures 1 and 3 to 9 was dealt with. Line 52 shows the results for a conventional cigarette, so their paper was not dealt with. The total fee on the first move is relatively low. the Total release of particles increases substantially with each puff. This results in a sharp increase between see the 6th and 9th train. (Compare line

In the case of a cigarette according to the invention, the total output on the first puff is approximately that of an untreated cigarette the same (the cigarette part smoked here is not dealt with in the embodiments in FIGS. 1 and 3 to 9). There is then essentially no change in the total amount of particles emitted in these cigarettes of the invention from the 2nd to the 9th train. So it follows that not only the sum of the total emitted particles decreases in a cigarette according to the invention, but also the proportion of the total emitted with each puff Particle is brought to practically the same level.

The treated areas can be visible or invisible

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be. YWhen using sodium chlorate results a substantially invisible pattern after the solvent has evaporated. However, it may also be desirable to make the treatment areas visible in order to make the cigarette particularly attractive. Such treatment can be particularly desirable in the embodiments according to FIGS. 8, 9 and 10. In these cases a Dye, preferably a vegetable dye, are added to the treatment solution, so that the treated The area after the solvent has evaporated is colored in such a way that it remains visible.

The various patterns can be provided in a number of ways. For example, a Filzstempel in \ the desired manner may be prepared and impregnated with the solution of the treating agent. This is then pressed onto the cigarette paper. A completely manufactured cigarette can be rolled onto the stamp, which then covers the entire circumference of the cigarette. A flat piece of cigarette paper can also be printed with the soaked felt stamp and wrapped around a tobacco rod after the solvent has evaporated.

Gravure printing (cliché printing) can also be used.

This gravure print is preferred when changing the concentration of the treating agent rather than the " pattern". Such an example has been shown in FIG.

Comparative examples which demonstrate the progress of a cigarette according to the invention are presented below. In each example, cigarettes were used with the modified cigarette paper of the invention. Control cigarettes were smoked from a conventional smoking machine. For example, the smoke machine from Mason use, which was also used in some tests. In any case, the machine took a train with it

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a> lumen of 35 ml for a period of 2 seconds. Every Minute was drawn once.

Example 1;

500 standard cigarettes, king size without mouthpieces, with the same weight (+/- 2 percent) were divided into two groups. In the first group, the cigarette paper was at the mouth end with a 50 percent water solution of sodium chlorate treated in a pattern as shown in Fig. 1, using about 3 mg of sodium chlorate per cigarette paper. The. The concentration of the treatment was therefore 1 to 2 mg / cm, for about 15 percent of the changed cigarette paper. The treated The surface of the cigarettes in the first group was reached after the 4th puff on the smoking machine. Table I. shows the release of the total particles by the treated and untreated cigarettes, in each case on average.

TABLE I.

Train no. TPM of the control TPM treated. Decrease of the TPM

group (mg / puff) delte Zi- der treated

garette cigarettes (%) (mg / puff)

3 30 38 40

Here, the indication TPM means the total amount of particles discharged.

From Table I it can be seen that the total amount of particles released drops considerably in the cigarettes according to the invention. This decrease becomes apparent as soon as the treated area is reached. Because of the gradual increase in the size of the treated area, a greater decrease in TPM when the cigarette has been smoked more and more. Between the 4th and 10th move lies

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4th 3.3 3.2 6th 3.7 2.6 8th 4.5 2.8 10 ^ f7 3.4

in the case of conventional cigarettes, there was an increase of over 70 percent in the delivery of the TPM. With a cigarette according to the invention, however, the corresponding increase is only 7 percent. Between the 4th and the 8th move results even a waste.

In the case of a cigarette according to the invention, there is not only a reduction in the total number of measured particles per puff, but there is also a selective reduction in other smoke additions measured via the. Total length of the cigarette. The data in Table II below gives this reduction in various smoke constituents over the first 10 puffs of the cigarette, again cigarettes according to the invention with conventional control cigarettes were compared.

TABLE II

Smoke component release through Control ziga 247 " Delivery by Decrease 38.6 save 740 » with sodium tion of the 22.2 46 » chlorate be Submit the 21.2 acted Zi ses Rauchan 28.2 garette partly at one with Sodium- Chlorate be acted Cigarette 37 mg Wet TPM 2.2 mg 28 mg 24 nicotine 31.0 mg 1.8 mg 18th Tar (TPM, and nicotine) 23.5 mg 24.2 except water 185 micrograms phenol Hydrogen cyanide 306 " 143 microgr. 22.7 Nitrogen oxides 188 _t " acetaldehyde 192 " Acrolein 583 " 33 ^H.

In the case of a cigarette according to the invention, there is thus a reduction in the delivery of the not only measured per puff

109831/1 4-39.

various smoke constituents, but also a surprising reduction in the total output of various Smoke components and selectively. The mean length of a cigarette smoked in 10 puffs was in for example with the cigarettes according to the invention and the control cigarettes same.

Example 2;

The need for the powerful burn assist oxidizing agent of the present invention becomes clear by comparison with a cigarette. which was treated as in the invention, but using of ammonium nitrate. This treating agent is described in U.S. Patent 3,285,253. It's supposed to be the temperature reduce the amount of air in contact with the tobacco. This publication describes the charring of the cigarette paper the embers. · However, it does not show the arrangement of an opening through which the air diluting the concentration of a train flows.

In this example 50 standard filter cigarettes, Kingsize, used with treated rolling paper. The various specified treatment agents and concentrations applied as shown in Table III below. The values given in the table are average values from 50 cigarettes for each measured value. As a pattern the exemplary embodiment according to FIG. 9 was used. About 2/3 of the paper surface was treated in this way and about 40 percent of that area had been treated with the remedy. The concentration at the treatment point was about 1.25 mg / cm for 50 percent solutions.

From the data in Table III it can be seen that not just a reduction in the delivery of the whole particle, nicotine and tar is achieved with the use of a treatment agent according to the invention and compared so-

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probably with a control cigarette as well as a cigarette, which has been treated with ammonium nitrate, but there is also a small increase in the number of puffs the cigarette according to the invention.

Two types of controls were used in the examples in Table III. The first check was the same type of cigarette which is used both for the modifications of the cigarette paper with ammonium nitrate and sodium chlorate but which did not include any treatment agent. The second control type was again the same Cigarette type, but this e cigarette was treated with the modified checkerboard pattern of FIG. 9, such as it was used for the ammonium nitrate and sodium chlorate treated cigarettes, the material used but was water with no oxidizing agent added.

10 9 8 3 1/14 3

Smoke component or number of moves

Unchanged Control group

TABLE III.

Modified paper with aqueous solution of

10% ammonium ■ nitrate

3096 Am- -50% ammonium- -monium nitrate nitrate

Sodium chlorate

% Sodi- 50% Soumchlorat dium-

chlorate

TFM (mg)
Nicotine (mg)
Tar (mg)

number of

22.6

1.3

17.7

8.7

22.6

1.3

18.1

8.9

24.0

1.4

19.0

8.8

22.8

1.3

18.5

8.7

21.8

1.3

17.3

8.9

15th , 2 21st , 7 1 , 0 . 1 , 2 12th , 4 17th , 4

9.5

Tar = TPM except for water and nicotine

CT. CD

From the table it can be seen that the cigarettes whose paper was treated with ammonium nitrate, independently show no improvement in concentration for TPM, nicotine or tar. Show in many cases they an increase in the delivery of these shares. On the other hand, those with a 10 percent or 30 percent showed Solution of sodium chlorate treated cigarettes provide an improvement in the delivery of these ingredients. Using the 50 percent solution of the present invention resulted in a significant decrease in all components. It has also been found that these cigarettes also have improved organic properties.

Example 3:

A group of 100 standard filter cigarettes, king size, was selected, the weight of these cigarettes by no fluctuated more than +/- 2 percent. Half of these cigarettes received no treatment from the paper and were classified as Keep control group. The other half of the cigarettes received a treated cigarette paper, taking twice a 50 percent solution of sodium chlorate with the pattern of FIG. 9 was applied. These cigarettes were smoked by a smoke machine as in the earlier examples. The sodium chlorate treated cigarettes showed a reduction in tar content of 39 percent compared to the control group and 43 percent in carbon monoxide, also compared with the control group. These two reductions apply to a completely smoked cigarette were not expected. The type of application and the spacing were as in Example 2. The The concentration was therefore about 2.5 mg / cm.

Thus, a cigarette according to the present invention with modified cigarette paper provides a reduction in the total release of various smoke components. With correct treatment it can be achieved that the released Smoke components practically uniformly step by step

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be delivered.

In the foregoing, the invention was explained on the basis of filter cigarettes. Of course, cigarettes without a filter piece can be used just as well. However, a substantial part of the cigarette paper should remain untreated at both ends of the cigarette.

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Claims (16)

Claims Cigarette with a cigarette paper treated with a combustion accelerating agent is characterized in that the agent is in a plurality of discrete, in the longitudinal direction of the cigarette distributed areas is provided, which compared with the total area of the cigarette paper are small, the size of which grows along the length of the cigarette paper and those in front of the when the cigarette is lit Embers form a multitude of openings in the cigarette paper through which air enters, carrying the smoke diluted, the openings are arranged one behind the other so that the progressive embers respectively larger areas and that the proportion of air drawn in in relation to the smoke also increases. 2. Cigarette according to claim 1, characterized in that a small piece of the cigarette length on the the cigarette holder to be lit is untreated. 3. Cigarette according to claim 1 or 2, characterized in that the total treated area is two to fifty percent of the area of the cigarette paper of the longitudinal part of the cigarette, which contains the treated areas ·. 4. Cigarette according to claim 3, characterized in that that the proportion is 25 to 45 percent. 5. Cigarette according to one of claims 1 to 4, characterized in that the treated areas in the we- 109831/1439 essentially lie within a triangle, the point of which is at the end of the cigarette to be lit, and that the treated areas essentially occupy this triangular area (Fig. 1). 6. Cigarette according to one of claims 1 to 4, characterized in that the treated areas in one Plurality of rows lie, which extend parallel to the longitudinal axis of the cigarette. (Fig. 3) v 7. Cigarette according to one of claims 1 to 4, characterized in that each area is a band that extends around the cigarette paper (Fig. 4). 8. Cigarette according to one of claims 1 to 4, characterized in that the areas on a helical Tape that is coaxial with the cigarette (Fig. 5). 9. Cigarette according to one of claims 1 to 4, characterized in that the areas are approximately checkered are arranged. (Fig. 9, 10). 10. Cigarette according to one of claims 1 to 4, characterized in that the areas are made as letters * are formed, with the mean visible (Fig. 8). 11. Cigarette according to one of claims 1 to 9, characterized indicated that the agent is visible. M. 12. Cigarette according to one of claims 1 to 11, characterized in that the agent is a strong, the combustion is supporting and oxidizing agent. 13. Cigarette according to one of claims 1 to 12, characterized 109831 / U39 characterized that the agent sodium chlorate, sodium bromate, Potassium chlorate, alkali perchlorate or alkaline earth metal perchlorate, sodium nitrogen, nitrous acid Potash, ammonium perchlorate, nitric acid, or a mixture of these ingredients. 14. Cigarette according to claim 13, characterized in that the agent in a concentration of 0.25 to 8 mg / cm is applied. 15. Cigarette according to claim 14, characterized in that that the agent is sodium chlorate at a concentration of at least 0.4 mg / cm. 16. Cigarette according to one of claims 1 to 15 »thereby characterized in that a filter cigarette is used in which the dl ^ skreten areas on the part of the cigarette paper are provided that envelops the tobacco. The patent attorney: Qi 109831 / U39 Yo Blank page