DE3240228A1 - Smoking article - Google Patents

Abstract

In a process for producing length units of a rod of smoking material, in particular of cigarette length units, the smoking material and the wrapping material are continuously fed to a rod-producing machine which is operated in such a way that the smoking material is wrapped and provided with a sealing seam, in order thus to produce a smoking material rod which is transferred into a cutting device for cutting this rod into length units. A smoke-modifying agent is intermittently fed to one of these materials while being fed to the rod-producing machine, namely in such a way that, in each of the length units, a smoke-modifying agent is distributed over an end zone which is intended for a few puffs, in general only the few first puffs, when the length unit is smoked. Preferably, the smoke-modifying agent is distributed in each of the length units over not less than 25% of each length unit. In addition, a smoke-modifying agent can also be distributed outside this zone.

Description

Smoking articles

The invention relates to the creation of smoking articles that Contains smoke-modifying agents.

It is known to be smoke modifying in cigarettes and other smoking articles Accommodate funds. Smoke modifying agents include materials to that effect effective, the mainstream and / or sidestream smoke of a cigarette fragrance or To impart aroma. There are also physiologically active agents or smoke body improvers Uses means effective to detect the quality of mainstream smoke to modify the smoker.

It is established practice to use a smoke-modifying agent in tobacco cartons from cigarettes To include means in order to bring the means to tobacco in such a way that that the middle essentially evenly over the full length the tobacco rod is distributed. However, advantages can result from an asymmetrical distribution of the smoke modifying agent. Asymmetric distributions of Smoke modifying agents are described in GB-PS 2,078,487. This description proposes methods of incorporating smoke modified agents into filter cigarettes before, namely after their production. These procedures relate to entrainment of particles of smoke modifying agent in a stream of air which induces will pour through every cigarette.

It is an object of the present invention to provide a practical method to create through which length sections of the smoking material rod, for example Cigarette cartons, with an asymmetrical distribution of the smoke-modifying Can be achieved by means of the method using the existing high-speed smoking material production technology is consistent or at least deviates only minimally from it. It's still a job the invention to provide a method by twisting it uniform Smoke modifier loadings achieved from rod length to rod length can be.

The present invention provides a method for creating Units of length of smoking material rods according to the smoking material and wrapping material are each continuously fed to a rod production unit, which to that effect works to wrap the wrapping material around the smoking material and make a sealing To form a seam to provide a rod of smoking material, which rod to a cutter is brought to cut the bar into uniform lengths, especially special Cigarette length units. The smoke modifying agent thus becomes intermittent one of the aforesaid materials while it is being fed to the bar making unit filled up, with the smoke modifying agent in each unit length of the rod is distributed over an end zone, which zone when smoking the cigarette length section is intended for agile trains, especially the first few trains.

The same or a different smoke modifying agent can be given to the other of materials are fed during feeding to the bar making unit.

The zone advantageously runs from one end of the length section the smoking material rod for a certain distance along this, which for two to half the total number of moves is determined and measured provided that the rod length section under standard conditions Machine-smoked over one-minute intervals with 35 cc puffs of 2 seconds duration became . The distribution zone of the smoke-modifying agent can be expressed in percentages By means of 15%, preferably at least 25%, to 50% of the unit of length take in.

In the section of the length of the smoking material rod outside Another smoke modifying agent may be distributed in the aforementioned zone. The latter can be a different remedy or the same remedy with an indicative lower application level than in the other zone.

There is currently an interest in low levy cigarettes of pollutants, i.e. those cigarettes that contain few main stream smoke components during smoking hand over, such as tar and nicotine. However, it has been observed that in some Cases smokers of such cigarettes are dissatisfied to some extent, namely for example in terms of scent, especially during the first few Trains. Cigarettes can be provided by using the present invention which solve this problem if a smoke modifying agent, for example a Tobacco fragrance improvers can be found in one of the aforementioned cigarettas over a section is in the unit of length that is intended for the first few trains, especially the first three to five moves. The level of application of the agent about this section can be the same as what is in agreement with the previous one orthodox practice for distributing the remedy over the full length of the tobacco rod was accepted. Alternatively, an arrangement can be made so that the amount of the agent applied to the portion of the cigarette rod in question could be nearly equal to the amount applied over the entire amount of the rod would. Or an application level can be provided1 which is between or is above these values.

It is common practice to populate cigarettes with filters, and that is with the purpose of removing pollutants from mainstream smoke. Currently exist Filter preferably made from a rod of cellulose acetate fibers. Although cellulose acetate can claim a multitude of merits as a filter material, it is a disadvantage if it is provided in filters of cigarettes, their tobacco rods treated with a smoke modifying agent that was applied over the entire Length of tobacco rod has been distributed. This is because cellulose acetate prefers to attract some agent when incorporated in some way into the tobacco rod be that they can wander freely. Wandering a smoke modes.j: i adorned agent in a cellulose acetate filter results in a reduction in the Release of the agent when the cigarette is subsequently smoked because the agent in most cases it does not go from cellulose acetate to smoke like this is the case when the agent is in the tobacco. When using the invention Therefore, improved filter cigarettes can be provided, their tobacco rods contain a smoke-modifying agent which can migrate freely, since if the agent the rod is applied in a zone that is far away from the filter, the agent has no opportunity to filter during storage after cigarette making to hike. If so a certain amount of smoke modifier on one front end zone of the tobacco rod has been applied, rather than over the entire Cigarette length according to previous practice, it will be a significantly higher proportion of the remedy be available to fulfill the purpose for which the remedy is intended is.

Cigarettes are known to be judged by some smokers to that on the last few puffs they produce a mainstream smoke, which as is felt to be hard or severe. By taking advantage of the present invention, you can Cigarettes may be provided which have a smoke modifying agent in one section of the cigarette, which is intended for the last few puffs, whereby The means are chosen so that they counterbalance the severity the mainstream smoke of the last puffs.

In cigarettes and other smoking articles made by the procedure accordingly of the present inventions, the smoking material can be made from one or more cut tobacco, degraded tobacco and tobacco substitutes to be selected.

When according to the present invention a smoke modifying agent Means on tobacco and / or cigarette paper immediately before the entry of the same is applied in a rod making unit of a cigarette making machine, can use the agent dissolved in a suitable volatile solvent an intermittently operable spray device. Such a Device could be a spray device similar to that disclosed in GB-PS 1,357,057. This device can be arranged to have a an aromatic substance-containing liquid on a tobacco layer on a Spot sprays very close to the entrance of the cigarette shop is located to which the tobacco is supplied. To the purpose of the present invention To serve, the spray device would have to be modified to operate intermittently works in the right phase with the rod cutter of the cigarette making machine. According to the disclosure in the aforementioned GB-PS 1 357 057, the liquid fed to a spray nozzle by means of compressed air. The modification of the spray device with regard to their adaptation to the purposes at hand, for example Replacing the compressed air system with a pump that is operable to do so is to deliver predetermined amounts of liquid additive to the nozzle.

When applying the smoke modifying agent to the rod wrap this can alternatively be sprayed onto this wrapping material, namely by means of a continuously rotating rotary applicator, the to the effect works, the agent on the wrapping web of one or more Make scines of scope to carry over.

The preferred smoke modifying agents for use are suitable in the method according to the present invention a limited property for hiking. If such a means directly to the Smoking material rod is applied, it should be little at ambient temperatures fleeing: to be icJ.

One class of essentially non-volatile preventions is which, when applied to tobacco, are known as volatile smoke modifiers pass in the smoke when the tobacco is burned. Members of this class can be selected for use in accordance with the present invention. They include polymers with floating fragrance molecules. They also include glycosides, in which alglycon is a fragrant material, such as menthol, eugenol, phenylethanol or benzyl alcohol.

It may also be preferred to use microencapsulated agents be made, either enclosed in the smoking material or on the wrapping material upset.

The following is a description of a laboratory test which an asymmetrical distribution of a smoke modifying agent in cigarettes sets out the benefits to be achieved.

Filter cigarettes with a length of tobacco rod were selected of 64 mm. This tobacco rod consisted of a hot air dried tobacco, which in cigarette paper with an air permeability of 120 Coresta units was wrapped. The filters were made of cellulose acetate and were unventilated. These cigarettes had a mean puff of 8.4 when taken under standard conditions machine-smoked.

A fragrance composition, kuinarine, which is used for analytical purposes was treated with radioisotopes, was in ethanol at a concentration of 309 µg cm 3 dissolved.

The cigarettes were divided into groups (A, B and C) and Each amount, 10 μl each, of the coumarin solution was injected into the tobacco rod every cigarette brought in. In the case of the cigarettes in group A, the culnar solution was used substantially uniformly spaced along the entire length of each tobacco rod. In Group B, the coumarin solution was over the front 3/8 of each tobacco rod discontinued, while in group C the coumarin solution over the rear 3/8 of each Rod have been placed near the filter.

After the injection, the cigarettes were stored for 24 hours.

They were then machine-smoked under standard conditions until the Ashes have reached the center of the tobacco rod, at which point they passed through contact with a crushed solid carbon dioxide has been extinguished.

During the smoking period, the total particle mass (TPM) of the Main stream collected in the Cambridge filter pad.

The main stream vapor phase components were used collected before chilled ethanol, which was contained in a glass cup, the was filled with a bubble trap.

The Cambridge filter pads, the remaining halves of the tobacco rods and the filters were individually subjected to ethanol extraction using measured amounts of ethanol. A liquid skintillation technique was then used to count the radioactive content of each ethanol extract and solution by bubble trap. By means of this determination, the distribution of coumarin after smoking was determined on a percentage basis. The results obtained are shown in the table below. KUNARIN, PERCENTUAL DISTRIBUTION Main page current current Group tobacco filters Smoke smoke A 46.1 6.3 7.8 39.8 B 4.5 8.1 10.6 76.8 C 88.5 3.2 2.3 6.0 The percentage of coumarin in sidestream smoke was calculated on the basis that any coumarin not found in tobacco, filter and mainstream smoke is in sidestream smoke. Although a small amount of the coumarin introduced into cigarettes may have been lost through migration during the storage period prior to smoking, these sidestream values may be slightly higher than actual values. The results @ clearly show that the coumarin distributions after smoking half of the cigarette cartons, ie after about four puffs, are very different for the three groups of cigarettes. It can be seen, for example, that when a coumarin quantity is distributed over the front half of the tahak rod rather than over the entire length of the same, the proportion of coumarin which enters the mainstream smoke during smoking of the front half of the cigarette rod is increased by 36%, whereas that portion The proportion of coumarin that entered the sidestream smoke was increased by 93%.

Claims (6)

Smoking articles P a t e n t a n s p r ü c h e 1. Method of manufacture of units of length from a smoking material rod, with smoking material and sheet-shaped Wrapping material brought continuously to a bar making machine which is operated to the effect, the web-shaped winding material under Forming a seam around the smoking material to wrap around a smoking material rod to produce, which is cut into equal units of length, thereby g e k c n n z e 1 c h n e t that the smoke modifying agent is so intermittent on one of the mentioned materials during the feeding to the bar making machine is applied that in each of the units of length mentioned the smoke-modifying Fund is distributed over an end zone, which when smoking the rod length units is intended for a few trains. 2. The method according to claim 1, characterized in that g e k e n n -z e i c h n e t that the smoking material is a cigarette tobacco material. 3. The method according to claim 1 or 2, characterized in that g e k e n n -z e i c That is, the smoke modifying agent over no less than 25% of any unit length is distributed. 4. The method according to claim 1 or 2, characterized in that g e k e n n -z e i c That is, the smoke modifying agent is in each unit length over a zone is distributed, which when smoking the unit of length only for the first few puffs is determined. 5. The method according to claim 1, characterized in that g e k e n n -z e i c h n e t that further smoke modifying agent spreads over a portion of the rod is which lies outside the named zone. 6. The method according to claim 2, characterized in that g e k e n n -z e i c h n e t that when using a cigarette with a low emission of pollutants the smell of tobacco improving means is distributed over said end zone.