TW201204273A - Low ignition propensity smoking article and an apparatus and method for forming a low ignition propensity smoking article - Google Patents

Abstract

A smoking article is described having a continuous spiral of low ignition propensity banding. An apparatus and method for forming the smoking article are also described.

Description

201204273, invention: [Technical Field] The present invention relates to a low flammability (LIP) smoking article, and an apparatus and method for forming the same. [Prior Art]

C As used herein, the term "smoking article" includes smokable products such as cigarettes, cigars and cigarillos, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or A grass replacement and is a heat-not-burn product. Low flammability (LIP) smoking articles generally comprise a specific low flammability envelope wrapped around a core of tobacco. When the smoking article is ignited, the low-flammability envelope limits the access of the outside air to the core of the burning tobacco, so that if the smoking article is not aspirated by the smoker as expected, the smoking article can be self-extinguishing. ,knock

AsTM Ε2187-04 and ASTM Ε2187_〇9 detail the standardized test, and the flammability characteristics of the smoke product can be estimated for this standardized test# (4) 7-04 or ASTME2187, test Xia: 疋〒 need a secret display Less than - a specific percentage of the door edge value, such as 25%. Long burning k

Commercially available envelopes of low-flammability smoking products - a base paper 'the fuel-restricted additive material on which the tape has been applied contains a material which usually has a gas permeability compared to the base paper'. The reduction of the band shape (the gas permeability of the envelope in the first domain, the gas permeability) is reduced from the pull of 187-04 and the ASTM E2187_〇9, such as the ASTM system, which reduces the gas permeability of 201204273. The amount of air can therefore be used to reduce the flammability of the product. A method for producing a package for the final product with reduced flammability, for adding a strip of paper to a base wrapper (or a wrapping paper base paper) And wherein the composition of the envelope and the strip of paper is selected to produce a composite paper having a desired burn rate, as disclosed in EP 0 483998 and EP 0 262 550. The strip is typically wrapped in a tobacco core. The circumference of the heart is applied to the base paper before, and when the paper is wrapped around the tobacco, the belt system is located on the interior of the tobacco-facing paper. Compared to the material used in the conventional smoking envelope, the pre-belt material may It is expensive. The production has reduced flammability. Another method of the product is generally used in a printing process to apply a flame retardant additive solution to the smoking article envelope. The flame retardant additive is typically applied to the belt and the belt is in the final group of products. 'Expanding into a ring around the circumference of the smoking article. These on-line applications may be preferred during the smoking manufacturing process, and the in-line application of this strap is disclosed in w〇2004 /057986 and US 2004/0261805. However, these processes have the additional disadvantage that in particular the machine used to apply the final product envelope (which may be modified to include a section for applying a flame retardant solution) will have significant tension Applied to paper. When the paper is wet due to the application of the flame retardant additive solution, the tensile strength is greatly reduced, so the paper is easily torn, and the performance of the technique is greatly reduced. [Invention] 201204273 According to the present invention , providing a final product containing - banding. 匕 3 _ 旋 旋 燃 燃 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Spiral interval. ;; can be packaged: 尧 in the base envelope, the ignitable material == coating; even the spin-shaped low-flammability band can be included - on the substrate

C c interval base envelope - uncoated area may contain high permeability spiral between the low = sex spiral section permeability may be (10) deleted or two, while the permeability of the permeability interval may be 5 () The spiral-shaped low-strength strap with i5G (10) may include - the outer wrapper material The outer wrapper material may comprise a low-permeability paper. The screw-added material sample (4) can be covered and covered.) According to the present invention, there is also provided a device for applying a continuous spiral-shaped low-flammability strap to a smoking article, which comprises You f: the driving tool for the rotation 'and the strap unit that is used to bind the cigarette to the final product. The right t,. The bale belt unit can include an applicator that can include a nozzle on the additive material when the final product is rotated to drive the tool to be configured to be used in the applicator or spray material At the same time, the recorded product rotates and moves toward the longitudinal direction of the secret product = 201204273 to create a continuous spiral of low-flammability. (d) μ may comprise a feed unit for feeding onto the final product to form the strap. U,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, To the base envelope. Wai. The low-force U-bundle may comprise winding the low-flammability strap around the product. The low-flammability strap may comprise an outer wrapper material. The outer wrapper (4) may contain - low permeability paper. When the final product of the material is rotated, the additive is added to the spiral belt around the a ° port. [Embodiment] An embodiment of the invention will be described in the following. A LIP smoking line is shown in the figure. Included in the context of containing - cigarettes (10) is as follows

, aC6tat^;S Hunted by a sheet of paper 400 (overlying tipDi pape^„^;I|| 2〇〇; ignited material # 3 Μ 其 系 is suitable for other Ming and Jia can ignite suction 2;: ^^ The substantially cylindrical core of the grass material 310 in the envelope 320. The base soil envelope 320 201204273 may comprise a base paper 320, which may be, for example, a cigarette paper. As shown in Figure i, the base envelope 320 provides a circumferential boundary to the cylindrical core 31〇 and extends along the entire length of the rod 300. The end face of the core 31〇 is maintained unwound in a conventional manner. Permeability of the substrate envelope 320 Between 50 and 15 〇 cu. For example, the permeability of the substrate envelope 320 may be any value between 7 〇 and 12 〇 cu, such as all integers and half integers between 70 and 120 CU The relatively high permeability of the substrate envelope is such that it allows a significant amount of external enthalpy 2 and other air molecules to penetrate into the grass core 310 via the substrate envelope 32. When the cigarette 100 is ignited, the outside air Molecular dilution through the permeation of the substrate envelope 320 during one-time pumping The smoke and gas flow in the tobacco anger 310. Referring to Figure 2, the smokable material rod 3 can further comprise a wrapper 33 卷绕 wrapped around the base envelope 320. Covering the circumferential surface of the substrate envelope 320, the coating can provide a coating (also referred to as a layer) on the surface of the substrate envelope 320. Thus, the outer surface of the rod 3卯i includes one or more of the substrate envelopes 320. The exposed area and one or more areas of the outer wrapper 330. The outer wrapper 33 may be secured to the base cuff 32 by a suitable adhesive, as further illustrated by the process of the cuvette 100. As shown in Fig. 2, the area of the outer wrapper 33 and the exposed base wrap can be wrapped around the smokable material rod 300 by a spiral or spiral. The pattern is formed on the upper end of the base envelope 320. In order to leave the base area of the base surface of the rod 3〇〇 exposed, the outer cover paper 33G may be wound around the base envelope 320 without being overlapped. More specifically, outside The wrapping paper 330 may be placed into a spiral sleeve around the base sleeve 32 (), and the ribbon can be wrapped between each of the belts of the belt = two i, and the wrapping paper 33G is left outside the envelope. The lower layer base, thus the "^ way out / domain, finely established - not (four) or uncovered, the corresponding spiral sleeve of the base envelope 320. The outer armor paper 330 of the spiral belt body The number of revolutions can be

Just, say and self-extinguish the characteristics, and may be at least once 3 = two - person, two or more times. The number of revolutions does not need to be an integer. A pair of rotations will also be present in the thin spiral of the base of the dew. The permeability of the outer wrapper 330 may be substantially less than the permeability of the base envelope 32〇. For example, the outer wrapper 33 may be less permeable.

Coresta is best less than 2 〇 c〇resta. The relatively low permeability of the outer wrapper 33〇 greatly limits the penetration of external air molecules such as oxygen (〇2) into the burning core of the tobacco core 31 in the region of the wrapper 330, meaning that the outer crotch air molecules penetrate The core wick 310 entering the smokable material is lower in the area of the outer wrapper 330 than in the exposed area of the base paper 32. The relatively high permeability of the substrate envelope 320 results in a smokable material rod comprising a high permeability spiral section 32 and a low permeability spiral section 330 as compared to the relatively low permeability of the outer wrapper 330. The outer circumferential surface of 300. The effect of the reduction of air permeation caused by the low permeability spiral section 33〇 is to reduce the flammability of cigarettes.

S 201204273

The cigarette 100 can be made to comply with the recognized LIP standard. For example, when tested under the conditions defined by ASTM E2187-04 and ASTM E2187-09, the camphor 100 may exhibit a total burn length of less than 25%, and preferably less than 15%. ,

C c As can be seen in Figure 2, the low permeability helical section 33〇 may extend completely along the length of the smokable material rod 300. However, the low permeability spiral 330 may or may only extend partially along the rod 3〇〇. The length of the low permeability spiral 330 may be adjusted to alter the characteristics of the cigarettes and the self-extinguishing feature. Alternatively, similar LIp features can be achieved with varying low permeability spiral lengths by varying the permeability of the outer wrapper 330 and/or the substrate wrap 32〇. - and as can also be seen in Figure 2, the width of the low permeability spiral 330 may correspond to the width of the higher permeability spiral exposing the base envelope 32(). However, the skilled artisan will appreciate that the low permeability helix = I: 30 is the same, the relative width of the penetrating spiral 320 can be changed to

2 fragrance at 100 UP and self-extinguishing characteristics. Alternatively, a similar LIP self-extinguishing feature can be achieved by varying the relative width of the low and high permeability spirals 330, 320 by changing the outsourced money 33Q~ or the base envelope j:#. The low permeability spiral 3 Λ & the desired up feature (iv) length and width choices may depend on the envelope W to account for the total length of the stem and the properties of the substrate # ignited material 310. An alternative to the smear wrapper 330, the low osmosis spiral may be formed by a material that will reduce the permeability of the base seal (4) 0 - 201204273 material (eg, comprising a low permeability material. For example , - solution can be borrowed =: low flow of construction = low permeability screw-permeable base envelope 32. Continuous ignitable pumping to reduce the penetration of external air molecules into the low permeability snail ==== Up to the above and FIG. 2; the outer package and the number of revolutions are as follows: the additive shape 33° is used as the envelope and the agricultural device of Fig. 3 is shown in Fig. 8. The device includes A core of the smokable material is wound around the substrate H around the unit 510. For example, the base envelope 320 is adhered along a weight of the lap by a method known in the art. While being ignited by the smokable material, the =3 to 6' ignitable material 31 〇 winding core direction is fed via a pipe to a cutting unit 52, which will be connected, The length of the winding can be difficult to pump the 1G thief suitable for the vertical section of the product 1 〇〇 assembly. In other words, the length of the segment may be about face. Or 'the length may be twice the length of the fragrance such as (2) let or more secret length. The heart 31G may be about 24 6 legs. Winding can ignite suction The section of material 310 is then fed via a pipe into a UP spiral application sheet a 53 , which applies the low 201204273 =: = : interval or strap 33 mentioned above. See Figure 4, spiral application The single-shaped two-belt 531 is configured to tautly wind the region 1 of the smokable material 310 via the spiral region. For example, the drive belt 531 may be directly disposed flatly. Suction material (4) (4) skin-like belt can be = material 3 community roll-shaped external listening and base envelope

Cc is an interface for tensioning the sections via the application unit 53. It is shown in Figure 4. The angle of the drive belt 531 with respect to the longitudinal axis of the section of the smokable material core 31〇 may be selected such that the drive belt 531 can be wound around their _ line at a (four) rate. The smokable suction = section of material 310 can be rotated as they are longitudinally tensioned by the application unit 530 at a desired longitudinal rate. . The dual (rotational/longitudinal) functionality of such a drive belt 531 can be achieved by configuring the drive belt 531 such that the direction of movement of the drive belt 531 is such that the angle Α between 1 and 89 degrees reaches the winding The longitudinal axis of the section of the sucked material f 310 can be ignited. An angle a between 3 〇 and 6 a is greater than that of the alumina to provide a longitudinal and rotational speed advantage for the section of the smokable material core ～31 螺旋 in the spiral application unit 530. ratio. As shown in FIGS. 4-6, the rotation of the section of the material core 310 that is ignited by the application unit 530 can be used to apply the low permeability spiral section 330 to the higher permeability substrate envelope 320. external. In a first example, the above-mentioned continuous length of overwrapping paper 11 201204273 material 330 is fed by two strapping units including an outer wrapper feeding unit 533. 531 is located in the spiral application unit on the opposite side of the smokable material core: 310. In the present example 4, the outer wrapper feed unit milk supply provides a secondary belt under the core to smear the aspiration material core 310. The outer wrapping paper feeding unit may alternatively or alternatively comprise a guide rod for the desired angle,

The outer wrapper 33G is guided into the spiral applying unit 53/. ^ In the case of Figures 4 to 6, the overwrap material 330 is fed into the application unit 530' on the underside of the section of the smokable material core 310 and the drive belt 531 is ignitable. The suctioned core of the material core 31 is over the section for frictionally engaging and driving the upper surface of the core section. However, the position of the drive belt 531 and the outer wrapping paper 33 may be reversed. The angle B between the major axis of the length of the outer wrapper 330 and the longitudinal axis of the section of the smokable material core 310 is between 丨 and 89 degrees. When the smokable material core 310 is rotated by the drive belt 531 = turn and is longitudinally tensioned via the spiral applying unit 53 , this causes the outer I paper 330 to form a surrounding envelope 32 ( The spiral strip 33 = the angle B between the length of the outer wrapper 33 与 and the longitudinal axis of the core of the smokable material 31 最好 is preferably between 30 and 6 degrees. As shown in Figures 4 and 6. The angle B between the outer wrapping paper material 33 and the longitudinal axis of the section of the smokable core 310 together with the angle A between the drive belt 531 and the core 310 determines the cigarette 1〇〇. on

S 12 201204273 The difference between the rotation of the spiral belt of the outer wrapping paper 330 and the relative permeability of the low permeability spiral sections 320, 330 and the low permeability spiral strap 33G around each bribe The number of revolutions ^ ' Referring to Fig. 4, the length of the outer wrapper 330 includes a refurbished adhesive 331' for wrapping around the base envelope 32〇 on the outer wrapper 33 . Adhesive, the spiral between the 30's spiral and the lower base envelope 32〇

C c = away: the spiral application unit 530 is pumped by her spin-shaped outer package 1_(four) New subtraction. ^ Non-overlapping snail = section of the wickable material core 310 away from the spiral application: = wide 'will use a second cutting unit 540 to ignite the pumping (four) # core section 31 〇 either end The cut spiral outer wrapping paper cutting unit 520, 540 and the spiral applying unit 53 are preferably integrally formed as a combined smoking article assembly unit. Although the base envelope unit 510 may be set up alone, it can also be used to view the secret assembly unit. Alternatively, instead of feeding an outer wrapper 330 into the device 5, it is preferred to make a low-flammability product, and rather the bundling unit can include an additive material. The additive material application member may be disposed in the spiral applying unit 530 to spray an additive material capable of reducing the permeability of the substrate envelope 32 to the outer surface of the substrate envelope 320. The application member 532 can include a nozzle 532 on the opposite side of the section of the drive belt 531 that is located on the wickable material core 201204273 core 310. For example, referring to Fig. 7, the application element 532 may be disposed under the section of the smokable material core 31" to continuously sprinkle a coating nozzle of a low permeability additive on the rotating substrate. On the envelope 320. The application element 532 may be connected to a reservoir of additive material (not shown). The additive material sprayed onto the substrate envelope 320 may be in the form of a fluid or particle. It is designed to adhere to the surface of the substrate envelope 320 upon contact. The position of the applying member 532 is fixed relative to the housing portion of the spiral applying unit 53 and other members, and the driving belt 531 can be simultaneously tilted to ignite the section of the material core 310 rotated by the suction unit and via the application unit. When the section 310 is tightened, the additive material is sprayed onto the base envelope 320 in a continuous spiral belt to form a low permeability spiral section 330. A screw-shaped gap between the turns of the low-permeability spiral belt 33 turns exposes the spiral region of the lower base envelope 32. Therefore, the spiral 32G and 33G which are low-permeability are appropriately formed on the surface of the sucked material rod 3〇〇. As will be appreciated by those skilled in the art, the rate at which the additive material sinks from the mouth I can be placed on the nozzle to apply the additive material to the area of the dots 3, and the drive belt 531 and the core. The angle A' of the two turns can be adjusted to change the characteristics of the low body, so that the low-flammability feature of the modified product is provided on the embossed material core 31 〇 Advantages through the application of technology 201204273. First, the substrate envelope 320 is wrapped around the smokable material to form a smokable material core 3 i 〇 which is no longer placed under considerable stress and, therefore, ignitable After the formation of the core 31 of the material, the application of the additive reduces the problem of tearing of the paper when wet. Second, the technique does not require a short range of cooperation between the print head and the substrate envelope 3 2 G. The nozzle 532 can be changed to a considerable distance from one of the base envelopes 32〇. Thus, the rotation and longitudinal movement of the base envelope 32 in the spiral applying unit 53 are less likely to affect the quality of the spiral belt 33, regardless of the rotation and longitudinal movement of the base envelope 320. And is definitely applied. The above technique provides a more reliable technique for the alternative technique of Billi (4), which is used to apply a LIP additive "online" to a smoking article assembly unit.

C is provided by an outer wrapper layer or coating 33 or a spray-on additive material coating 330 to provide read (iv) permeability, enthalpy, body (10), 33. 'Mei 1〇. It is placed by a user to "=," to ensure that at least one segment of the higher permeability interval 32〇 will always be disc base = touch. The contact between the substrate and the substrate in the high-permeability section 32 is such that the air molecules are prevented from entering the core of the smoking material 31 () through the high-permeability section 3 in contact with the substrate. The effect is that when the fragrance end (10) is placed on the substrate than when the secret (10) is kept in the air, for example, less oxygen is available for the core, the heart 3 = :: and =::; The reduction in the amount of oxygen placed on the substrate _(d) increases the probability that the fragrant will then make its own money under such conditions. 15 201204273 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an illustration of a smoking article comprising a core of a smokable material wound in a base envelope. Figure 2 is a diagram of a smoking article comprising a core of ignitable drawn material wrapped in a base envelope and a continuous spiral of low flammability strap. Σσ Figure 3 is a schematic view of a device for applying a continuous spiral of low flammability strap to a smoking article. Figure 4 is a view of a drive belt for winding an outer wrapper material around a spiral strip (which is placed around a core of a smokable material wrapped in a base envelope) A perspective view of the device in the middle. Figure 5 is a top view of the cross-sectional side of the apparatus shown in Figure 4. Figure 6 is a plan view of the apparatus shown in Figures 4 and 5. Figure 7 is a side elevational view of the apparatus of Figures 4 through 6, additionally including a nozzle for spraying additive material onto the base envelope of the core of the smokable material. Figure 8 is a flow diagram of a method of applying a LIP spiral ribbon to a substrate envelope. [Description of main component symbols] A: Angle B: Angle 10〇: Cigarette/smoke 201204273 200: Filter 300: Material rod 310 that can ignite suction. Material that can be ignited/material core/material core area Segment / Smoking Material / Tobacco Material / Tobacco Core / Cylindrical Core 320 : Lower Base Envelope / Overlay / Base Paper / High Permeability Zone / Oscillation Spiral / Spiral Belt 330 : Overwrapping Paper / Outside Wrapping paper material / low permeability spiral / low permeability spiral strap / low permeability spiral section / spiral belt / spray coating additive material coating 331 : envelope adhesive 400 : watering paper 500 : Application unit/device 510: substrate envelope unit 520: cutting unit 530: application unit 531: drive belt 532: additive material application member/nozzle 533: outer wrapping paper feeding unit 540: second cutting unit 17

Claims (1)

201204273 VII Patent application scope: ^ A smoking article contains a continuous spiral low-burning banding. 2. The smoking article of claim 2, wherein the low flammability band comprises a low permeability spiral section and the smoking article further comprises a high permeability spiral section. • The article of claim 2, comprising a rod of smokable material wound in a base envelope, wherein the continuous spiral low-flammability strap comprises a A heavy layer on the base envelope. 4. The article of claim 3, wherein the uncoated region of the /substrate envelope comprises the high permeability spiral section. The smoking article according to any one of claims 2 to 4, wherein the low permeability spiral section has a permeability of 30 C0resta or less and the permeability of the high permeability section It is between 50 and 150 Coresta. 6. The smoking article of any of the preceding claims, wherein the smoldering low flammability strap comprises an outer wrapper material. 7. The product as claimed in claim 6, wherein the outer wrapping paper S 201204273 material comprises - low permeability paper 8. as described in the paragraph of the patent patent range ^ to 5 For the product, the low-flammability strap of '''''''''''''''' 9. C is used to apply a continuous spiral low-flammability strap to the smoking article of paragraph 1: range: the device comprises: a bundle of belts; a broken configuration to transfer the bribe; And the final product. The early 70' is used to provide the strap to the 1Q when the final product is rotated. The additive material is sprayed to the spinned U when the bundle is turned. The farmhouse as claimed in claim 10 The system is configured to simultaneously rotate the final product and make the final product pass the ^=^ in the longitudinal direction when the material is added to the material to establish the continuous spiral low-burning band. And moving the device as described in claim 9 includes a feeding unit for overlying an agricultural paper = phase = element to form the strap. 4 Feeding to Far Smoke 201204273 13. A method for forming a smoking article, comprising the steps of: winding a core of a smokable material in a base envelope; and burning a continuous spiral A strap is applied to the base envelope. 14. The method of claim 13 wherein the step of applying the low flammability strap comprises winding the low flammability strap around the smoking article. 15. The method of claim 13 or claim 14, wherein the low flammability strap comprises an outer wrapper material. The method of any one of claims 13 to 15, wherein the outer wrapper material comprises a low permeability paper. 17. The method of claim 13, wherein the step of applying the low-flammability strap comprises: spraying an additive material around a spiral around the smoking article when the smoking article is rotated In the belt body. S 20