JP2005273073A - Cigarette paper with low fire-spreading property, cigarette using the cigarette paper and method for producing cigarette paper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cigarette paper with a low fire-spreading property, not only having characteristics of a cigarette paper with the low fire-spreading property but also having large air permeability of the cigarette paper, and enabling the air permeability of a filter to be reduced on the design of the cigarette; and to provide the cigarette using the cigarette paper and a method for producing the cigarette paper. <P>SOLUTION: The cigarette paper with the low fire-spreading property has alternately arranged electrically opened hole regions obtained by boring many fine holes by electric discharge over ≥4 mm width in the longitudinal direction of a belt-shaped body made of cellulosic fiber paper having self-extinguishing properties, and unbored base regions having 4-10 mm width in the longitudinal direction of the belt-shaped body. At least one or more of the base regions are arranged in the cigarette when the cigarette is formed by wrapping cut tobacco with the cigarette paper. The electrically opened hole region has 250-500 CU air permeability. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a low-flammability cigarette wrapping paper used for cigarettes, a cigarette using the wrapping paper, and a wrapping paper manufacturing method. The present invention relates to a low flame spread cigarette wrapping paper, a cigarette using the wrapping paper, and a wrapping paper manufacturing method.

  Bar cigarettes (cigarettes) are generally formed by chopping cigarettes that are continuously supplied in a controlled amount, using a long wrapping paper to form a bar-shaped cigarette continuously in the longitudinal direction. Manufactured by cutting. The wrapping paper used for this cigarette is a paper having a long combustibility of, for example, a width of about 27 mm, and is provided in a state of being wound as a roll. This type of wrapping paper is generally a highly combustible paper.

  By the way, when a cigarette during smoking is dropped onto a floor or a carpet, for example, it is desirable to extinguish the fire naturally (self-extinguishing property). Thus, attempts have been made to provide a low-fire-spreading portion on the above-described wrapping paper (see, for example, Patent Document 1). In this wrapping paper, a band portion is formed by sticking a low-flammability substance (for example, a wrapping paper prepared without including chalk) in a striped manner at a predetermined interval in the longitudinal direction of a combustible base paper. Incidentally, the air permeability in the base part of this wrapping paper is 30 CU (Cholesta unit), and the air permeability in the band part is 0 CU (no air permeability).

  In addition, there is a wrapping paper in which a flammable wrapping paper is coated (applied) with a solution obtained by diluting a low-flammability material such as sodium alginate (for example, see Patent Document 2). Specifically, for this wrapping paper, a low-flammability material is applied in a striped manner to a paper having an air permeability of 35 CU (Cholesta unit) or an air permeability of 60 to 80 CU, and the air permeability of the portion where this material is applied is 10 CU or It is reduced to 3CU.

Cigarettes formed by winding cigarettes chopped with such wrapping paper are designed to allow outside air to be taken into the inside thereof by the smoker's suction operation. That is, in the cigarette, outside air is sucked from the tip burning portion, the wrapping paper portion, and the filter portion of the cigarette by the smoker's suction operation. In recent years, cigarettes with relaxed taste generally tend to be preferred by smokers, and therefore cigarettes with fine holes in the filter section are commercially available.
JP-A-63-85200 Japanese Patent No. 2544717

However, from the viewpoint of cigarette design, there is a need to provide a wrapping paper that has a cigarette breathability different from that of the above-described conventional low-flammability wrapping paper and also has a low fire spreadability.
The present invention has been made in response to such a demand, and an object of the present invention is to provide a wrapping paper having the characteristics of a low spread fired wrapping paper, high wrapping paper permeability, and low filter air permeability in cigarette design. is there.

  In order to achieve the above-described object, the low-fire-spreading cigarette paper according to the present invention opens a plurality of fine holes by electric discharge over a width of 4 mm or more in the longitudinal direction of a self-extinguishing cellulose fiber paper-like strip. A perforated electric aperture region portion and a non-perforated base region portion having a width of 4 mm to 10 mm in the longitudinal direction of the belt-like body are alternately provided, and the base region portion is formed by winding a cut cigarette with the wound body. When the cigarette is formed, at least one cigarette is disposed, and the electric aperture region portion has an air permeability in the range of 250 CU to 500 CU.

When cigarettes are formed using the above-described low-fire-spreading cigarette paper, at least one base portion is left in the longitudinal direction of the cigarette, so that self-extinguishing properties can be maintained and standard Do not self-extinguish if smoking.
Preferably, the electric hole area portion in the low-flammability cigarette paper according to the present invention is not formed in a 1 mm to 3 mm wrap portion provided on one side in the width direction of the low-flammability cigarette paper. Is desirable.

The above-mentioned low-fire-spreading cigarette paper has no fine holes in the bonding part (wrap part) when the cigarette is rolled up to form a rod-shaped cigarette, so that the paste for winding up is drawn from the fine holes. There is no leakage. Therefore, the cigarette manufacturing apparatus is not soiled by the paste for pasting.
The base sheet in the low spread fired cigarette paper according to the present invention,
(1) Thermal conductivity is 0.5 W / K · m or more (2) Filler ratio is 0 to 6 weight percent (3) The intrinsic air permeability is less than 50 CU or the characteristics (1) to (3) It has a self-extinguishing property that can be obtained by combining wrapping paper. The above-described low-fire spread cigarette paper has self-extinguishing properties by having these characteristics.

Preferably, the air permeability of the electric hole area in the low-fire-spreading cigarette paper according to the present invention is 300 CU to 400 CU.
In order to achieve the above-described object, a cigarette according to the present invention includes a cigarette rod portion composed of a cut filler and the wrapping paper for low-fire-spreading cigarette that wraps the outer periphery thereof, and chip paper at one end of the cigarette rod portion. A filter cigarette having a filter portion connected coaxially with the filter portion, wherein an inflow air amount flowing into the filter from an outer peripheral portion of the filter portion is less than 10% of an intake air amount sucked from the filter It is characterized by that.

In order to achieve the above-described object, the method for manufacturing a wrapping paper according to the present invention is fed by a conductive roller having an outer peripheral surface having the same width as the belt-like body, and the belt-like body is fed with the conductive roller and a plurality of needles. And a discharge is caused between the conductive roller and the plurality of needles to make fine holes in the belt-like body to produce a wrapping paper.
Preferably, the electric hole is disposed during the paper supply process of the cigarette manufacturing machine, and the base part and the wrap part having a predetermined area are left in the strip to synchronize with the cigarette manufacturing. It is characterized by being manufactured by forming a region portion.

  As described above, according to the low-fire-spreading cigarette wrapping paper and the cigarette and wrapping method using the wrapping paper according to the present invention, the cigarette has a low fire-spreading property and a large dilution air inflow rate from the wrapping paper portion. The smoke temperature passing through the rod portion can be effectively lowered, and it is possible to design a cigarette with different taste characteristics. This is extremely useful in designing a low tar cigarette.

Hereinafter, the wrapping paper according to the present invention will be described with reference to the drawings. This wrapping paper is a long paper provided with low fire spreadability (self-extinguishing property), and is provided by being wound around a roll or the like, for example. A cigarette formed by winding cigarettes using this paper (wrapping paper) naturally extinguishes unless the cigarette is blown from the self-extinguishing property of the wrapping paper itself. Specifically, the paper having such characteristics is (1) thermal conductivity is 0.5 W / K · m or more (2) contains filler at a rate of 0 to 6% by weight (3) aeration If either degree is less than 50 CU, the natural combustion state cannot be maintained. That is, the wrapping paper has self-extinguishing properties if any of the above-described conditions is satisfied. Of course, it goes without saying that paper combining these characteristics also has self-extinguishing properties. More preferably, if the air permeability is about 30 CU or less, it is possible to provide self-extinguishing properties with a wrapping paper.

  The inventors made several kinds of cigarettes with cigarettes rolled up using such self-extinguishing paper as a wrapping paper, and performed an evaluation test for measuring the burning speed (natural burning speed) without blowing the cigarettes. It was. As a result, as shown in Table 1, all the samples disappeared on the way.

Therefore, the inventors uniformly described a number of fine holes by, for example, electrical (discharge) opening, in the paper having self-extinguishing properties described above, specifically, a strip-like paper made of cellulose fiber paper. It has been found that if cigarettes are formed as wound papers, specifically, papers that wind up cigarettes with an air permeability of about 250 to 500 CU, the cigarettes will not disappear.
On the other hand, it is desirable that the cigarette has a self-extinguishing property that naturally extinguishes when a cigarette being smoked is dropped on a floor or a carpet, for example, as described in the background art. Therefore, the wrapping paper according to the present invention is based on the knowledge as described above, and in order to give the wrapping paper self-extinguishing property, for example, as shown in FIG. By providing an opening (band part B) in a striped manner, the combustibility is improved, and a self-extinguishing property inherent in the wrapping paper is left in the base part BE, and an optimum wrapping paper is obtained for winding up the cut tobacco. . That is, the wrapping paper according to the present invention is characterized in that a base portion BE provided with a large number of fine holes in a strip shape in the longitudinal direction of the self-extinguishing wrapping paper is provided to increase the air permeability and improve the combustibility. At the same time, when the cigarette being smoked is dropped on, for example, a floor or a carpet, the base portion BE has a self-extinguishing property that naturally extinguishes due to the low fire spreadability.

Therefore, although the details will be described later, the inventor provided a cigarette in which a plurality of fine holes are provided in a wrapping paper P by band opening B (band part B) by electric (discharge) opening, and cigarettes rolled up by the wrapping paper P are wound up. A flammability evaluation test was performed. In this flammability evaluation test, the paper of Sample G shown in Table 1 as a self-extinguishing paper, that is, basis weight 17.5 g / m ² , filler 5.1%, combustion modifier 0.7%, inherent ventilation. Wrapping paper P having a degree of 13.4 CU was used. Then, electric piercing was performed on the wrapping paper P using a wrapping paper punching device, which will be described later, and an opening portion (band part B) composed of a large number of fine holes was provided in the wrapping paper P in a striped manner to obtain an evaluation sample.

Specifically, this evaluation sample was provided with a band part B (opening part) of 20 mm and a base part BE (non-opening part) of 7 mm in the longitudinal direction of the wrapping paper P as shown in FIG. Is. And several types of wrapping paper P which adjusted the density (opening density) of the fine hole of the band part B in the wrapping paper P produced in this way and changed air permeability were prepared as an evaluation sample.
Next, cigarettes were prepared to perform a combustion test using several types of evaluation samples (wrapping paper P) having different air permeability. Incidentally, the increment used for the cigarette in this combustion evaluation test is a commercially available cigarette of about 1 mg of tar.

  As a result, when the air permeability of the band part B was 540 CU, one of the five parts disappeared at the base part BE, and the remaining four parts burned naturally to the root without disappearing at the base part BE. On the other hand, when the air permeability was 370 CU, four of the four parts disappeared in the base part BE, and all of them naturally extinguished in the base part BE. Further, when the air permeability was 240 CU, one of the four parts disappeared at the base part BE, and the rest disappeared regardless of the location of the band part B or the base part BE.

  From the result of this combustion evaluation test, when the air permeability of the band part B is 540 CU, the fine hole density is high, and therefore the flammability of the wrapping paper is improved. It is thought that the fire was not extinguished. On the other hand, when the air permeability is 240 CU, it is considered that the hole density in the band part B of the wrapping paper P is low, and therefore disappeared regardless of the band part B or the base part BE due to the low spreadability of the wrapping paper. When the air permeability is 370 CU, it is considered that the hole density of the band part B is appropriate, and it is possible to provide a low-fire-spreading part (base part BE) at a predetermined place of the wrapping paper P. Was confirmed.

  Next, the inventors conducted an evaluation test to determine whether the self-extinguishing property of the wrapping paper P can be maintained when the length of the base portion BE (non-opening portion) of the wrapping paper having self-extinguishing properties described above is changed. . In this verification, the length of the band part B (opening part) was examined with four types of 4, 10, 20, and 59 mm. And the cigarette sample was produced by the standard manufacturing method which winds up a cut tobacco using the wrapping paper P which changed the length of this base part BE. By the way, the ticks used for this evaluation test are those using a commercially available cigarette of about 6 mg tar.

  Next, when these cigarette samples were ignited and freely burned, a test was conducted to determine whether or not the base part BE would naturally extinguish. As a result, the results shown in Table 2 were obtained.

  From this result, in the sample G of the self-extinguishing wrapping paper, it was found that the preferable length of the base portion BE that can leave the self-extinguishing property on the wrapping paper P is about 4 mm or more. Incidentally, when a cigarette is formed using such a self-extinguishing wrapping paper, there is a concern that the cigarette spontaneously extinguishes against the intention of the smoker. For this reason, it is desirable that the base part BE is 10 mm or less so that the self-extinguishing property of the wrapping paper P is maintained and natural fire extinguishing is not performed in a standard smoking state.

From these things, the length of the preferable base part BE (non-perforated part) which does not naturally extinguish in the standard smoking state while remaining self-extinguishing on the wrapping paper P is 4 mm to 10 mm. Band part B (opening part) is 4 mm or more in length and has an air permeability of 250 CU to 500 CU, preferably 300 CU to 400 CU.
Incidentally, it is desirable that the band part B is not formed on the 1 mm to 3 mm wrap part W provided in the measuring part in the width direction of the wrapping paper as shown in FIG. In other words, when a cigarette is rolled up using the above-mentioned low-fire-spreading cigarette wrapping paper to form a stick-shaped cigarette, an adhesive margin (wrapping portion W) for wrapping the wrapping paper is required at one portion of the wrapping paper. If a fine hole is formed in the wrap portion W, there is a risk that the paste for paste leaks to the back surface through the fine hole and soils the cigarette manufacturing apparatus. Therefore, it is desirable not to form fine holes in the wrap portion W.

Using the low-fire-spreading cigarette wrapping paper according to the present invention having such characteristics, for example, by using a normal cigarette hoisting device, a cigarette is formed by winding up a chopped cigarette without cutting it into a bar-shaped cigarette and cutting it into a predetermined length As shown in FIG. 2, a filter cigarette FC having a large number of fine holes at predetermined intervals in the cigarette portion can be obtained.
Incidentally, the cigarette may be provided with fine holes FB in the outer peripheral portion of the filter F for the purpose of relaxing the taste. However, since the filter cigarette FC described above has a large number of fine holes (base part B) formed in stripes at predetermined intervals on the wrapping paper, the amount of air flowing from the fine holes FB provided in the outer peripheral part of the filter F is reduced. What is necessary is just to be less than [10%] of the amount of suction air. Of course, even if the filter F of the filter cigarette FC is not particularly provided with fine holes, the taste of the cigarette can be relaxed by the outside air flowing in from a large number of fine holes provided in the wrapping paper P when smoking. Furthermore, since the wrapping paper P is provided with a large number of fine holes, the combustion temperature is lowered by the air flowing in from the fine holes, and therefore, the vapor component is aggregated to make the cigarette more relaxed. Is possible.

Next, a wrapping paper punching method for producing the characteristic low-fire-spreading cigarette wrapping paper as described above will be described with reference to the drawings.
FIG. 3 is a perspective view of an essential part showing an example of a paper-sheet punching device that embodies a paper-paper punching method according to an embodiment of the present invention. In this figure, reference numeral 1 denotes a reel on which a self-extinguishing wrapping paper P is wound, and the wrapping paper P is sandwiched by the feed roller 2 and rewound at a predetermined transport speed so as to be transported to the next process. It has become.

  In the middle of the conveyance path of the wrapping paper P, a cylindrical roller 10 having electrical conductivity and grounded is provided. An insulator 11 is affixed to the outer peripheral surface 10a of the roller 10 at a predetermined interval. This insulator is made of a thin sheet having no electrical conductivity. For example, an insulating vinyl tape, cellophane tape, or the like is used. In this way, the conductive portion and the non-conductive portion (insulating portion) are provided on the outer peripheral surface 10a of the roller 10 at a predetermined interval.

  The roller 10 is provided with a plurality of needles 12 so that the outer peripheral surface 10a of the roller 10 is in contact with the web being conveyed. The plurality of needles 12 are held by a bracket 13 and fixed to the wall surface portion 3 of the wrapping paper punching device. These needles 12 form a predetermined angle with respect to the outer peripheral surface 10a of the roller 10 while maintaining a predetermined interval with respect to the rotational direction of the outer peripheral surface 10a of the roller 10 and the direction of the shaft 10b. It arrange | positions so that the one end part of 12 may contact | connect. Specifically, as shown in FIG. 4, the adjacent needles 12 are spaced by about 20 mm in the rotation direction and about 0.1 mm in the axis 10b direction. The plurality of needles 12 are in contact with the outer peripheral surface 10a of the roller 10 at an angle of about 20 ° to 30 °.

  An ignition coil group 14 for generating a high voltage is connected to the other ends of the plurality of needles 12 via a high-voltage cable 15 via a resistor R for limiting current described later. The ignition coil group 14 is driven by being supplied with power from a commercial power supply 16 and supplied with power from a power supply unit 17 that outputs a high-frequency rectangular wave alternating current. Incidentally, the needle 12 is formed by cutting, for example, a tungsten rod having a diameter of about 1 mm into a predetermined length.

  On the other hand, the ignition coil group 14 includes a predetermined number of a plurality of ignition coils 14a connected in series as shown in the block diagram of FIG. 5, and one end on the primary side is connected to the power supply unit 17 and the other end is connected to the other end. The part is grounded by the ground electrode 14b. Specifically, when the AC voltage output from the power supply unit is 100V, five ignition coils 14a are connected in series, and a voltage of 20V is applied to each ignition coil 14a.

  Moreover, the power supply part 17 outputs the rectangular wave alternating current of the predetermined voltage with a frequency of 2 kHz-4 kHz. Then, the ignition coil 14a driven by the power supply unit 17 outputs a pulsed high voltage of several kV from the secondary side according to the output frequency (waveform cycle) of the power supply unit 17. The pulsed high voltage output from each ignition coil 14a in this way is applied to the plurality of needles 12 via the high voltage cable 15 and the current limiting resistor R, respectively. Incidentally, the power supply unit 17 uses a variable frequency power supply that can output a constant voltage value and vary the frequency.

On the other hand, since the roller 10 is grounded as described above, a high voltage applied to the needle 12 causes a discharge between the needle 12 and the conductive portion of the roller 10. The discharge current at this time returns to the ground electrode 14b of the ignition coil 14a via the ground electrode 10c of the roller 10. Incidentally, the current limiting resistor R plays a role of a current limiting resistor for limiting the discharge current.
Schematically, the wrapping paper punching device according to the present invention configured as described above is characterized in that a conductive portion and a non-conductive portion are arranged at substantially equal intervals on the outer peripheral surface 10a of the roller 10 provided in the conveyance path of the wrapping paper P. A plurality of needles 12 are arranged at predetermined intervals so as to be in contact with the outer peripheral surface 10a, and a discharge occurs between the needles 12 and the conductive portion provided on the outer peripheral surface 10a of the roller 10. Thus, a fine hole is formed in the wrapping paper P sandwiched between the outer peripheral surface 10 a of the roller 10 and the plurality of needles 12.

  According to the wrapping paper punching device configured as described above, a plurality of needles 12 are arranged at predetermined intervals so as to contact the outer peripheral surface 10a of the roller 10, and between the outer peripheral surface 10a of the roller 10 and the plurality of needles 12 are arranged. The sandwiched wrapping paper P is conveyed at a predetermined speed, and discharge is caused between these needles 12 and the conductive portion provided on the outer peripheral surface 10a of the roller 10, so that fine holes are provided at predetermined intervals. The band part B can be formed.

  The present invention is not limited to the above-described embodiment. For example, in the case of the above-described embodiment, a case where a variable frequency power supply having a constant output voltage is used as the power supply unit 17 is exemplified. However, instead of this, a variable voltage variable frequency that can adjust the output voltage and the output frequency is used. A power source may be used. That is, by applying a variable voltage variable frequency power source to the power source unit 17 so that the voltage output from the power source unit 17 can be increased or decreased, for example, when the voltage output from the power source unit 17 is increased, Since the energy increases, the diameter of the hole punched in the wrapping paper P increases. On the other hand, when the voltage output from the power supply unit 17 is lowered, the diameter of the hole punched in the wrapping paper P is reduced because the energy during discharge is reduced. By making the voltage output from the power supply unit 17 variable in this way, it is possible to vary the diameter of the hole formed in the wrapping paper P. For this reason, in addition to giving the wrapping paper P the desired combustion characteristics, by adjusting the hole diameter, for example, adjustment of taste can be easily performed by changing the output voltage of the power supply unit 17.

  Of course, it is possible to control the hole density by varying the output frequency of the power supply unit 17 as shown in the above-described embodiment, and to control the output voltage and output frequency of the power supply unit 17 in combination. Makes it possible to finely adjust the aperture. Furthermore, in addition to controlling the output voltage and output frequency of the power supply unit 17, by controlling the rotational speed of the roller 10 as well, it is possible to adjust the opening of the wrapping paper P, and the wrapping paper having desired characteristics. P can be created.

  In addition, this invention is not restrict | limited to embodiment mentioned above, A various deformation | transformation is possible. For example, in the above-described embodiment, in order to improve the combustibility of the low-fire spread wrapping paper P, the band portions B made up of a large number of fine holes are provided in a striped manner by electric opening so as to have self-extinguishing properties. However, the present invention is not limited to such a wrapping paper. For example, as shown in FIG. 6, a large number of fine holes (band part B) are formed only within a predetermined range from the ignition end of a filter cigarette FC formed by joining a filter F to a cigarette C. It is also possible to form a wrapping paper P provided with a).

  Moreover, generally as a cigarette smoking pattern, as shown in FIG. 7, it is known that the smoker's attraction | suction power in the vicinity of an ignition end part is strong, and an attraction | suction force becomes weak as it approaches a filter part. It is considered that the smoking satisfaction of the smoker gradually increases with smoking. Based on such smoking characteristics, if the air mixing degree at the initial stage of smoking is improved by applying the above-described electrical opening to the vicinity of the ignition end of the wrapping paper P to provide the band portion B, the wrapping paper P is ingested. It is possible to make the amount of smoke almost constant. For this reason, the smoking characteristic with respect to a smoker can be made flat, and it is preferable.

In addition, the low-flammability cigarette wrapping paper, the cigarette using the wrapping paper, and the wrapping paper manufacturing method according to the present invention can be implemented with various modifications without departing from the scope of the invention.
For example, a cigarette hoisting apparatus to which the above-described wrapping paper manufacturing method is applied will be described with reference to the drawings. 8 and 9 are diagrams schematically showing a cigarette winding device to which the wrapping paper manufacturing method according to one embodiment of the present invention is applied. In these drawings, the same parts as those in the above-described wrapping paper punching device are denoted by the same reference numerals, and the description thereof is briefly described. In these drawings, reference numeral 1 denotes a reel on which a wrapping paper P is wound. The wrapping paper P wound around the reel 1 is sandwiched by the feeding roller 2 and is rewound at a predetermined speed. The wrapping paper P rewound by the feed roller 2 is temporarily stored in the reservoir device 4. As is well known, the reservoir device 4 is used for exchanging the reel 1, that is, for automatically connecting the paper roll P, and is provided with a suction guide 5 at its outlet. The suction guide 5 is provided with a guide surface (not shown) for regulating the meandering of the wrapping paper P.

  The wrapping paper P that has been rewound onto the reservoir device 4 is conveyed on the outer peripheral surface 10 a of the roller 10. Then, the wrapping paper P is conveyed to the endless garniture tape 6 with the band portion B formed of a large number of fine holes formed as described above. The garniture tape 6 is wound around the drive drum 7, travels in one direction as the drive drum 7 rotates, and passes through the winding part 8. Further, a band detecting means is provided between the roller 10 and the garniture tape 6 so as to be in contact with one side of the wrapping paper P conveyed through this portion. The band detecting means detects the band portion B from the change in the suction pressure with respect to the wrapping paper P. Although details will be described later, the pressure sensor 20 detects the suction pressure of the wrapping paper and the pressure level value detected by the pressure sensor 20. Is converted to a signal of an input level suitable for the deviation amount calculation unit 21 of the next stage.

On the other hand, the garniture tape 6 receives the supply of the wrapping paper P from the upstream side of the wrapping portion 8 and puts the layered cut tobacco on the wrapping paper P. Incidentally, the layered cut tobacco is supplied from a tobacco band (not shown).
The wrapping paper P passes through the upper part 8 together with the garniture tape 6. At this time, the winding upper part 8 continuously wraps the cut tobacco in the wrapping paper P to form the tobacco rod TR. The formed tobacco rod TR is delivered from the upper part 8. A cutting part 9 having a rotatable cutting knife 9 a is arranged downstream of the winding part 8. Therefore, the tobacco rod TR is cut into individual cigarettes C having a predetermined length by the rotation of the cutting knife 9a when passing through the cutting part 9 from the winding part 8.

  The cutting knife 9a is driven in response to a cutting signal from a cutting control unit 23 that determines cutting timing. The cutting signal from the cutting control unit 23 is also given to the above-described deviation amount calculating unit 21. On the other hand, the shift amount calculation unit 21 calculates a shift of the band part B provided on the paper roll P so that the band part B provided on the paper roll P is positioned in an appropriate area of the cigarette C. The deviation amount of the band portion B obtained by the deviation amount calculation unit 21 is given to the servo control unit 25 that variably controls the rotation speed of the servo motor 24.

  Here, the cutting timing of the cigarette rod TR by the cutting knife 9a is determined according to the driving speed of the garniture tape 6, that is, the traveling phase of the band B consisting of the fine holes provided by the electric opening, A band B provided on the wrapping paper P is positioned in an appropriate area of the cigarette C. This appropriate region is defined in a range of a predetermined length from the front end of the cigarette C when the individual cigarettes C are obtained by cutting the cigarette rod TR.

Thereafter, the cigarette C is sent to a filter attachment process (not shown) to form a filter cigarette. At this time, the band part B is positioned at the ignition end of the filter cigarette, although not particularly shown.
According to the cigarette winding device to which the wrapping paper manufacturing method according to the embodiment of the present invention configured as described above is applied, the cigarette winding device is in contact with the outer peripheral surface 10a of the roller 10 provided between the reel 1 and the winding part 8. A plurality of needles 12 are arranged at a predetermined interval, and the wrapping paper P sandwiched between the outer peripheral surface 10a of the roller 10 and the plurality of needles 12 is conveyed at a predetermined speed. Since a discharge is caused between the conductive portion provided on the outer peripheral surface 10a, a band B provided with fine holes at a predetermined interval with respect to the wrapping paper P can be formed. Then, the wrapping paper P provided with the band part B in this way detects the position of the band part B and drives the position adjusting roller 30 so that the position of the band part B is positioned at a predetermined part. Since the conveyance distance of the wrapping paper P between the web and the upper part 8 is variably controlled, the band part B can be positioned at a predetermined part of the cigarette C.

The figure which shows the wrapping paper which provided the fine hole in striped form. The figure which shows the filter cigarette produced using the wrapping paper shown in FIG. The perspective view which shows the principal part of the wrapping paper punching apparatus which concerns on one Embodiment of this invention. The figure which shows the positional relationship of the needle | hook which contacts a roller. The block diagram which shows the structure of the ignition coil group shown in FIG. The figure which shows the filter cigarette which provided the band part which consists of a fine hole in the ignition end vicinity of a wrapping paper. The graph which shows an example of the smoker's smoking characteristic. The figure which showed schematically the cigarette winding apparatus with which the wrapping paper manufacturing method which concerns on one Embodiment of this invention is applied. The block diagram which showed roughly the principal part of the tobacco winding apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reel 2 Feeding roller 10 Roller 10a Outer peripheral surface 11 Insulator 12 Needle 13 Bracket 14 Ignition coil group 15 High voltage cable 17 Power supply part P Wrapping paper

Claims (7)

An electroporation region having a plurality of micropores formed by electrical discharge over a width of 4 mm or more in the longitudinal direction of the self-extinguishing cellulose fiber paper strip;
Alternately provided with non-opening base region portions having a width of 4 mm to 10 mm in the longitudinal direction of the belt-like body,
When the cigarette is formed by winding up the cigarette by winding the cut tobacco with the wound body, the base region portion is arranged in at least one cigarette,
The electric hole area portion has air permeability in a range of 250 CU to 500 CU.   2. The low fire spread cigarette according to claim 1, wherein the electric aperture region portion is not formed in a 1 mm to 3 mm wrap portion provided on one side in the width direction of the low fire spread cigarette paper. Wrapping paper.   The base sheet has a self-extinguishing property obtained by any one having a thermal conductivity of 0.5 W / K · m or more, a filler ratio of 0 to 6 weight percent, and an intrinsic air permeability of less than 50 CU or a combination thereof. The low-fire-spreading cigarette paper according to claim 1.   The low-fire-spreading cigarette wrapping paper according to claim 1 or 2, wherein an air permeability of the electric hole region is preferably 300 CU to 400 CU. A tobacco rod portion composed of a cut filler and the low-flammability cigarette wrapping paper wrapped around the outer periphery thereof;
A cigarette comprising a filter portion connected coaxially by tip paper to one end portion of the tobacco rod portion,
5. The low-fire spread cigarette paper according to claim 1, wherein an inflow air amount flowing into the filter from an outer peripheral portion of the filter portion is less than 10% of an intake air amount sucked from the filter. Cigarette using   The low-fire-spreading cigarette paper is fed out by a conductive roller having an outer peripheral surface with the same width as the belt-like body, while the belt-like body is sandwiched between the conductive roller and a plurality of needles, A method for producing a wrapping paper, wherein a discharge is caused between a conductive roller and the plurality of needles to form fine holes in the strip.   The electric aperture is arranged during the paper supply process of the cigarette manufacturing machine, and in order to synchronize with the cigarette manufacturing, the electric aperture region portion is left on the strip to leave the base portion and the wrap portion of a predetermined area. It manufactures by forming, The wrapping paper manufacturing method of Claim 6 characterized by the above-mentioned.

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