Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/04—Tobacco smoke filters characterised by their shape or structure
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes

Definitions

• the present invention provides a cigarette filter for smoking, and more specifically, when used with a ventilation hole, controls the air and smoke flow in the filter to provide a tobacco filter with excellent taste and does not have a ventilation hole.
• the present invention relates to a filter for cigarettes, which can give a high smoke volume to smoke passing through the outer periphery of the filter when used in the filter.
• Examples of such tobacco fills for low tar products include a method of using finer tow fibers with a single fiber fineness and a method of providing ventilation holes on the side of the filter in order to increase the fiber specific surface area.
• This dual structure fill is composed of a long fiber tow and a grooved tape with air permeability of 8 LZ or less on the outer circumference, and a long fiber tow in the core. It has a structure that is joined to Yuichi.
• the fill can be removed.
• the present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a filter having a higher added value by using a new control factor.
• the cigarette filter according to the present invention comprises a core, a grooved tape provided around the core, and a web provided around the tape, and a filter provided between the tape and the web.
• Filter element in which a cavity communicating with the longitudinal direction of the filter is formed
• the air gap resistance of the filter element (A) is 0 to 294 Pa.
• the core of the filter element (A) preferably has a ventilation resistance of 490 Pa to 140 Pa.
• the air resistance of the Fill Yuichi element (A) is 98-196 Pa, the Fill Yuichi element
• the airflow resistance of (B) is from 294 to: L470Pa is desirable.
• the tobacco fill element of the present invention is a dual filter in which the inlet side is disposed as the fill element element (A), and the tobacco leaf side is disposed as the fill element element (B), or the inlet side is the fill element element (B).
• B) a dual fill element having the tobacco leaf side as the element element (A).
• a ventilation hole may be formed, and in that case, a filter-ventilation ratio is desirably 30 to 60%.
• the core material of the filter element (A) and the fiber material of the filter element (B) are preferably made of cellulose acetate fibers, and the grooved tape of the filter element (A) is preferably cellulose acetate. It is desirable to use a sheet made of set fiber.
• the paper roll is provided with chip paper, and the air permeability of the paper roll is 100 000 to 300 CU, and the air permeability of the chip paper is 300 000 to 600 CU.
• the core of the filter element (A) is preferably made of a fiber material with a fineness of 1.5 to 8.8 dtex, and the filter element (B) is preferably made of a fiber material with a fineness of 3.3 dte X or less.
• FIG. 1 is a perspective view of an example of the tobacco filter of the present invention.
• Fig. 2 is a cross-sectional view of an example in which the void of the filter element (A) is 20%.
• Fig. 3 is a cross-sectional view of an example in which the void of the filter element (A) is 24%.
• FIG. 4 is a cross-sectional view of an example in which the air gap of the filter element (A) is 33%.
• the tobacco filter of the present invention comprises at least a filter element (A) and a filter element (B).
• the filter element (A) has, for example, as shown in FIG. 1, a core part 10 provided at the center thereof, a tape 12 provided around the core part 10, and a web 13. .
• the paper roll can be used not only for the filter element (A) but also for the filter element (B).
• various types of well-known papers can be used.
• the core portion 10 is preferably made of a cellulose acetate fiber tow as a tobacco filter material from the viewpoints of filter manufacturing stability and tobacco taste.
• the ventilation air is selectively passed through a void provided around the core portion, and only the tobacco smoke is passed through the core portion. Smoke cannot be diluted by air.
• the core has a ventilation resistance of 490 ⁇ ; L 470 P a (in order to allow tobacco smoke to selectively flow through the voids provided around the core. 1:50 to 50 mm H 2 ⁇ ) is laid is preferred that is preferably a fiber material having a fineness of 1.5-8.8 dtex.
• the ventilation resistance of the core is determined by peeling off the web of the filter element (A)
• the measurement can be performed by covering the groove portion with a rubber-like packing material so that the fluid flows only in the core portion.
• a grooved tape 12 is provided around the core.
• This tape has a width that can wrap the core and is grooved.
• the grooved tape formed into a corrugated shape, etc., wraps the core portion into a circular rod shape. Further, when a roll of paper 13 is provided around the core, the groove of the tape 12 and the roll of paper 13 Between them, a gap is formed that communicates in the longitudinal direction of the film.
• the grooved tape is preferably formed from a sheet formed from cellulose acetate fiber from the viewpoint of taste.
• the void formed between the grooved tape and the web wound around the tape is preferably 15 to 40% of the filter cross-sectional area, and 0 to 2994 Pa it is preferred to have the air-flow resistance of (0 ⁇ 3 0 mmH 2 O).
• the gap 14 occupies 20%, as shown in FIG. 3, the gap occupies 24%, as shown in FIG. It is preferable that the ratio of the void portion is 33%.
• the ratio of the voids is less than 15%, the fiber tow used for the core does not enter the groove ridges of the grooved tape, and uneven filling occurs in the groove ridges, resulting in an uneven filter. There is a risk. Further, when the ventilation air is introduced, the flow velocity of the ventilation air is increased, so that the air is felt first for the sake of taste, which is not preferable. In addition, when the ventilation air is not introduced, if the ratio of the air gap is less than 15%, the air flow resistance in the air gap becomes high, and the smoke becomes difficult to flow through the air gap.
• the proportion of the voids exceeds 40%, the rigidity of the filter may be so low that a practical filter may not be formed. Further, the filtration efficiency during smoking is extremely reduced, which is not preferable.
• the ventilation rate when used as a ventilation fill is preferably 30 to 60%. If the ventilation rate is less than 30%, it becomes difficult to separate tobacco smoke and ventilation air. On the other hand, if it exceeds 60%, the ventilation resistance of the cigarette will be low, and it will be difficult to suck.
• the filament element (B) is made of a fiber material, and is preferably composed of cellulose acetate fiber tow from the viewpoint of the stability of the production of the filament and the taste of tobacco.
• the fiber material has a fineness of 3.3 dtex or less, and the ventilation resistance is 294 to: L 470 Pa (30 to 150 mmH 2 O). If it is less than 294 Pa, the filtration efficiency at the time of smoking will be remarkably reduced, and if it is higher than 1470 Pa, the filtration will proceed too much and the taste of tobacco will be weakened.
• the filter element (A) When the filter element (A) is provided on the mouth side, the smoker can be seen at first glance to make the smoker aware that it is a special filter.
• the filter element (A) is provided on the tobacco leaf side. Sometimes, the appearance is the same as a regular Phil, but the taste is different but the unexpectedness can be brought to the smoker.
• the ventilation rate is preferably 30 to 60% as described above.
• the air permeability of the web wound around the filter element (A) is 10,000 to 30,000 CU, and the air permeability of the tip paper wound around the outermost circumference is 300 to 600 CU. Desirable.
• the ventilation rate in this range is set. Ventilation air selectively flows through the gap between the fluted tape and the web, while one tobacco smoke flows through the core and the tobacco smoke is ventilated. It can reach the smoker's mouth without being diluted with air and can enjoy the flavor.
• tobacco smoke will selectively flow through the voids, giving the smoker a sense of high smoke volume.
• the tobacco filter of the present invention can be manufactured, for example, as follows.
• the plasticized agent such as triacetin is uniformly applied to the grooved tape of the Fill Yuichi element (A), and the tape is converged to a predetermined width, and the tape is converged to a predetermined width. Obtained by passing.
• the filter element (A) When the filter element (A) is used for the core, for example, a fiber tow is unwound with a normal filter winding device, a plasticizer such as triacetin is attached, and the bundle is bundled into a circular rod. It is obtained by winding up the whole with a wrapping paper while winding it up with the grooved tape.
• a plasticizer such as triacetin
• the filter element (B) can be produced, for example, by using a device that winds a fiber tow with an ordinary filter.
• a tobacco filter By wrapping the obtained filter elements (A) and (B) with a wrapping paper and a chip paper and joining them, a tobacco filter can be manufactured.
• a dual-fill element having one filter element (A) and one filter element (B) is taken as an example, but the present invention is not necessarily limited to this.
• the present invention can be applied to a triple structure filter having a configuration in which a filter element (A) is interposed between two filter elements (B).
• a filter was manufactured as follows, and a tobacco was constructed using the filter, and its characteristics were evaluated.
• the airflow resistance was measured based on the Choles evening method using an “OTIC type suction resistance meter” manufactured by Kato Kogyo.
• TPM Total Particulate Matter
• smoke smoke
• nicotine smoking in smoke due to smoking were measured based on the Cole evening method using a rotating smoker “RM20ZCS” manufactured by Boulder Wald.
• the cellulose acetate fiber tow with triacetin impregnated is passed through a heating roll for grooving to create a tape with a groove pitch of 0.9 mm and a groove crest height of 0.5 mm.
• a wrapping element (A) with a 24% void was created by wrapping around the fiber tow. This was matched with the filter Yuichi element (B) wound up in the usual way to create a dual filter.
• the obtained dual filter and the tobacco leaf were wrapped with cellophane tape and connected to produce a tobacco.
• a fill element (A) was placed on the suction side. Although the vent holes were provided, the center positions of the holes were all 12.5 mm from the inlet. Therefore, when the length of the filter element (A) is 15 mm, the ventilation holes are formed in the filter element (A), and the length of the filter element (A) is 10 mm. In, the ventilation holes are formed in the fill element (B).
• the tobacco leaves used had the same configuration as PHILIP MORRIS's product name "Marlboro” except for a portion of the fill.
• Tables 1 to 4 show the structure, physical properties, and tobacco evaluation results of the obtained dual filter.
• a tobacco filter having a uniform structure consisting of cellulose acetate fiber tow containing only the filter filter element (B) was manufactured.
• the obtained tobacco fill Yuichi was connected to tobacco leaves in the same manner as in Examples 1 to 12 to produce tobacco.
• Tables 3 and 4 show the composition and physical properties of the obtained tobacco filter and the results of tobacco evaluation.
• Filter element A
• Cigarettes connected to the dual filters of Examples 1-3, 5, 6, 8, 9, 9, 11 and 12 with ventilated holes have better taste than the cigarettes of Comparative Examples 2 and 3. Met.
• the cigarette filter according to the present invention is an excellent tobacco filter that can supply tobacco smoke without being diluted by the ventilation air when a ventilation is provided. If there is no tobacco, the tobacco smoke that selectively flows through the void is a tobacco fill that can provide a high smoke volume, and is of high value.
• the taste and the filtration efficiency are better.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=17900825

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (13)

Citations (3)

• 1999
  • 1999-10-22 JP JP30175899A patent/JP2001120249A/ja active Pending
• 2000
  • 2000-10-18 KR KR10-2002-7004931A patent/KR100468885B1/ko not_active Expired - Fee Related
  • 2000-10-18 WO PCT/JP2000/007215 patent/WO2001030183A1/ja not_active Ceased
  • 2000-10-18 CN CNB008145601A patent/CN1261055C/zh not_active Expired - Fee Related
  • 2000-10-20 TW TW089122069A patent/TWI224952B/zh not_active IP Right Cessation

Patent Citations (3)

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