201016150 六、發明說明： 【發明所屬之技術領域】 本發月係關於一種用於於品之濾嘴的通氣孔。 【先前技術】201016150 VI. Description of the invention: [Technical field to which the invention pertains] This is a vent for a filter for a product. [Prior Art]
aπ "於一濾嘴之菸草桿所構成的菸品，諸如香菸 ^香於’通常在麵嘴巾包括若干通。該等通氣 子，的在於胃—吸終者吸#時，允許空氣進人該滤嘴。 該工氣與煙以及從該點祕草經過誠嘴吸人的其它成分 混合並且稀釋之。—般而言，該等孔以—列或區域之形式 圍繞該據嘴之圓周而配置，距離誠嘴之嘴部末端大約^ 到16毫米。 目前存在一範圍的技術用於製造通氣孔。渡嘴紙係包 裹該香終而將於草桿連接於滤嘴，<藉由一機械式或靜電 式穿孔裝置或藉由一雷射光束在包裹程序前即進行預先穿 孔。或者，使用一連線或聯機系統，在該香終組合之後,， ❹ 一雷射光束可被使用以進行穿孔。在聯機系統的案例裡， 藉由該聚焦雷射光束，該等孔被燒入濾嘴當中，且因此穿 過包裹該濾嘴的該（等）紙(濾嘴紙、包裹紙）’並且進入製成 該濾芯的醋酸絲束當中，深度達1直2毫米。在所有案例 當中，結果是允許稀釋空氣被吸入濾嘴的外圍區域。這讓 主菸流集中在濾嘴的中心，在若干案例當中，造成濾嘴的 嘴部末端染上難看的顏色。 沿著濾嘴長度的該等孔之位置可修正過濾和稀釋效 201016150 果，特別地，如果該等孔相對一多段濾嘴的各別元件而配 置，或者如果該濾嘴具有一環形構造或具有一環形元件， 例如一以吸附劑材料所製成之外圍層。 因此，針對若干類型的濾嘴設計之好處是將菸從濾嘴 中心引導至靠近或位於濾嘴外圍的位置之上。 【發明内容】 依據本發明之一第一樣態，一濾嘴被提供以用於與一 終品結合，該滤嘴包括一滤芯、一圍繞該濾怒的裹層和至 少一通氣孔，該通氣孔透過該裹層延伸進入該滤芯至一深 度，使得經由該通氣孔吸入的空氣進入該濾芯的一中心區 域0 該通氣孔可被構型，使得經由該通氣孔吸入的空氣較 佳地進入該渡芯的中心區域。 該通氣孔可由一表面所定義，該表面在該濾芯的中心 區域比在該濾芯的一外圍區域對空氣更具有滲透性。 該通氣孔可具有一至少為2毫米的深度，較佳地為2 至3.5毫米。 該通氣孔可具有一深度，其為該濾嘴之一直徑的至少 25%，較佳地為該濾嘴之直徑的25至50%。 該濾嘴可包括複數個該等通氣孔，該等通氣孔可以圍 繞該濾嘴的至少一圓周列或區域來配置。 該濾嘴可為一多段濾嘴，使得該濾芯包括兩個或多個 201016150 沿著該濾嘴縱向配置的區段。 該濾嘴可為一環形.滤嘴，使得該濾芯的至少部份包括 藉由一環形部分所圍繞的一中心部分，且該濾嘴可更包括 一縱向配置於該濾芯之中心區域的香味絲束。 該裹層可為藉由終草燃燒之至少一煙氣所滲透，且可 為一氧化碳所滲透。 該通氣孔或該等通氣孔可使用一雷射光束所製造。 參 依據本發明之一第二樣態，一菸品係被提供以包括一 如上述般的滤嘴。 依據本發明之一第三樣態，一方法係被提供用以製造 一用於與一菸品結合使用的濾嘴。該濾嘴包括一濾芯和一 圍繞該濾芯的裹層，該方法可包括製造至少一通氣孔，該 通氣孔延伸穿過該裹層進入該濾芯至一深度，使得經由該 通氣孔吸入的空氣進入該濾芯的一中心區域。 _ 該方法可包括構型該通氣孔，使得經由該通氣孔吸入 的空氣較佳地進入該濾芯的中心區域。 該方法可包括構型該通氣孔之表面，使得該表面在該 濾芯的中心區域比在該濾芯的一外圍區域對空氣更具有滲 透性。 該方法可包括構型該通氣孔以具有至少2毫米的一深 度，較佳地為2至3.5毫米。 201016150 該方法可包括構型該通氣孔以具有一深度，該深度係 為該濾嘴之一直徑的至少25%，較佳地為該濾嘴之直徑的 25 至 50%。 該方法可包括產生複數個該等通氣孔，其等可以圍繞 該滤嘴的至少一圓周列或區域來配置。 該方法可包括構型該濾嘴成為一多段濾嘴的形式，使 得該濾芯包括兩個或多個沿著該濾嘴縱向配置的區段。 該方法可包括構型該濾嘴成為一環形濾嘴的形式，使 得該濾芯的至少部分包括藉由一環形部分所圍繞的一中心 部分。 該方法可包括構型該濾嘴以包括一縱向配置於該濾芯 之中心區域的香味絲束。 該方法可牽涉到一裹層的使用，該裹層可為藉由菸草 燃燒之至少一煙氣所滲透，且該煙氣可為一氧化碳。 該方法可包括使用一雷射光束以製造該通氣孔或該等 通氣孔，並且該方法可包括在一用於製造具有該濾嘴之煙 品的機器上的雷射之操作。 【實施方式】 習知菸品濾嘴中的通氣孔係以預先穿孔方式僅成型於 滤嘴紙上’或使用一雷射光束照射在一組合好的於品或於 品濾嘴上穿過濾嘴紙並進入濾嘴之濾芯外圍區域而淺燒成 若干孔。 201016150 圖1A表示一具有預先穿孔之香柊簡單構造的縱向橫 剖面視圖。該香菸10包括一菸草桿12，其藉由一濾嘴紙 16連接於一濾嘴14’該濾嘴紙16以圍繞菸草择12和濾嘴 14之連接位置而黏附在香於10上面。該滤嘴紙16具有圍 繞該濾嘴14周圍延伸的一列通氣孔18。該於草桿π包括 裹捲在一紙裹層19中的菸草。該濾嘴14包枋一裹捲在一 濾、嘴裹層22當中以醋酸絲束所製成的滤嘴滤芯20。該裹 ❹ 層係充分地透氣，穿過該等通氣孔18吸入的空氣可穿過該 裹層22而進入遽怒20。 圖1Β表示一具有聯機雷射成型通氣孔的香菸之縱向 橫剖面視圖。除了該等通氣孔18外，該香於24包括的元 件與圖1Α中的香菸1〇之元件相同，該等通氣孔18由一聚 焦雷射光束所燒成且穿過濾嘴紙16而延伸，經過底下的濾 嘴裹層22並深入濾芯20 —短距離。一般而言，由雷射所 燒成的通氣孔之深度約在1至2毫米之間。 ® 在每個案例裡，當一吸菸者吸取點燃的香菸時，通過 4濾嘴14的空氣之流動是相似的。在濾嘴14表面區域中 該等通氣孔18被配置，使得進入濾嘴14的空氣沿著濾芯 加的外圍區域流動，在該處，流入的空氣稀釋來自點燃菸 2桿12並經過濾嘴14的煙氣。在圖1Α*汨當中，空氣 流動係以小箭頭26標示，煙氣流動則以大箭頭28標示。 此外圍空氣流動從一已吸菸香菸的濾嘴之末端可更清 地觀察得到’在該處該中心區域因為藉㈣嘴捕捉之煙 7 201016150 氣所攜帶的物質之堆積而染色，而在外圍區域，因為有較 淡煙氣的經過，所以染色較淡。 圖1C表示此一類濾嘴14之末端的相片，該濾芯20 在一中心區域30具有染色，而在四周的外圍區域32則具 有較淡的染色。 相對地，本發明所提供的一濾嘴案例具有較深的通氣 孔，亦即進入該濾嘴的濾芯之延伸深度較深。在此情況下， 與具有傳統通氣孔的濾嘴中的流動比較，空氣流動可被修❿ 正以提供不同的稀釋效果。較深的通氣孔能夠讓經過通氣 孔之吸入空氣抵達濾芯的中心區域，所以沿著濾芯中心而 傳導的煙氣可被稀釋。 圖2A表示一具有較深通氣孔的濾嘴之香菸的一第一 範例之縱向橫剖面視圖。該香於34具有如圖1B所示之相 同構造，除了該等通氣孔較深入濾嘴14的濾芯20當中。 假設該等孔的孔壁（在該濾芯中形成孔邊界的濾芯材料）就 空氣可滲透率而言係大略均勻的，則經由該等孔之吸入空❹ 氣可經由孔的深度進入濾芯，且從該等通氣孔縱向流過濾 芯的下游之大部分體積。圖2A中的箭頭26表示此空氣的 流動情況。比起傳統遽嘴中的表面通氣，此類煙氣稀釋因 煙氣在濾芯區域和外圍區域兩區域中被稀釋而較為均勻。 圖2B表示一具有較深通氣孔的濾嘴之香菸的一第二 範例之縱向橫剖面視圖。該香菸36實質上係與圖2A所示 的香菸34相同，在該濾嘴14的外圍具有一列較深的通氣 201016150 孔18。然而在此範例當中，在該等孔的孔壁中的空氣可滲 透率並不是均勻的。相反地，愈靠近孔之底部的空氣可滲 透率愈大’亦即濾嘴的空氣可滲透率在濾芯區域大於在外 圍區域。此效果在於如該等箭頭26所示，與外圍區域相 較’經由該等通氣孔之吸入空氣較容易進入濾芯區域，所 以該煙氣28在濾芯區域的稀釋程度較大。 圖2C表示一具有較深通氣孔的一吸於香於之濾嘴14 ❹ 的一末端視圖之相片’其較佳地賦予在濾嘴中心的空氣流 動。與一具有傳統淺短通氣孔的香菸比較，由該濾嘴所捕 捉之煙氣中材料所造成的染色具有明顯的差異，因為在滤 芯外圍區域32的染色情況比在中心區域30的染色情況嚴 重得多。 圖2D表示一具有較深通氣孔的一濾嘴14的一末端視 圖之相片。由該圖可看到，該等較深通氣孔18實質上穿進 該遽嘴14的渡芯20當中。 ❹ 一般而言，深的通氣孔具有若干優點，且較佳地在該 濾嘴的中心區域進一步提供煙氣的空氣稀釋： -藉由選擇孔之一適當深度，過濾效率可被改善。 -如果深孔與多段濾嘴結合，則可提供一範圍較大的 過濾可能性。 -環形濾嘴構塑可造成更有效率的使用’例如，在遽 嘴的外圍四周使用吸附性材料將可強化從煙氣當中 移除不需要的汽相成分。通氣水平的一致性將被改 201016150 善，因為使用相同設備在深孔當中所造成的任何錯 誤百分比小於在淺孔當中所造成的錯誤百分比。因 此，在各別通氣孔之間甚至在不同根香菸之間的變 動性被減少。 -從該等通氣孔中滲出的煙氣量被減少。 -在香菸被吸菸的過程當中，因為空氣和煙氣之流動 改變所造成的通氣水平的改變被降低。 -煙氣流動集中於外圍區域可與具多孔性或可透氣性 之濾嘴紙和裹層紙一起使用，以更促進不需要的氣 體(諸如，一氧化碳)驅出濾嘴的更大擴散性。 -中心之空氣的稀釋表示更多未稀釋的煙氣通過濾嘴 的外圍區域，外圍區域所具有的體積可大於中心區 域所具有的體積(依據該等深通氣孔的深度而定），因 此可獲得較佳的過濾效果。一相關要點在於相同量 的過濾材料堆積在一更大體積的濾嘴當中，所以染 色的強度減小，改善了吸菸當中和之後的濾嘴外觀。 -濾嘴中心未染色區域可與濾嘴濾芯中的香味絲束一 起結合使用。此類絲束可具有顏色，同時沿著濾芯 的縱軸配置。濾芯區域染色的顯著減少意謂著在該 香菸吸菸當中該絲束不會變成看不清楚。 如現有連線通氣方法所知，該等孔的外部直徑係可變 化的，藉以提供具有大範圍孔數目之大範圍的通氣水平。 該等深通氣孔的直徑一般而言係介於0.25至0.01毫米之 間，較佳地，介於0.2至0.15毫米之間。使用數目6到80 201016150 的孔，1G%到的通氣水平可輕易地被達成。顯然地， 要達成一定的通氣水平’使用越少的孔將需要越大的孔外 部直徑，反之亦然。 針對一定的通氣水平，在與標準深度孔之孔直徑比較 的情況下，具有較小外部直徑的孔具有減少煙氣從通氣孔 滲出的功能。 該等通氣孔可具有一深度，其為該濾嘴直徑的至少 φ 25%，替代地，該深度為至少50°/。，較佳地，該深度為該 濾嘴直徑的至少75% 〇該等通氣孔可具有一深度，其為該 濾嘴直徑的25至50%。就實際應用而言，該等通氣孔可鑽 入該濾嘴至少2毫米，較佳地，該等通氣孔鑽入該濾嘴2 5 毫米。選擇性地，該等通氣孔鑽入該濾嘴3毫米，或者替 代地3.5毫米。最佳地，該等通氣孔鑽入該濾嘴2至毫 米0 表一 深通氣孔間的差異Aπ " A tobacco product consisting of a tobacco rod in a filter, such as a cigarette, is usually included in the mouth towel. These ventilators, when the stomach-sucker sucks #, allow air to enter the filter. The work gas is mixed with and diluted with the smoke and other ingredients from the point where the secret grass sucks through the mouth. In general, the holes are arranged around the circumference of the mouthpiece in the form of a column or region, about ^16 mm from the end of the mouth of the mouth. There is currently a range of techniques for making vents. The dip paper bag wraps the scent and will connect the straw to the filter, < pre-piercing through a mechanical or electrostatic perforating device or by a laser beam prior to the wrapping procedure. Alternatively, using a wired or inline system, after the scent combination, a laser beam can be used for perforation. In the case of an online system, with the focused laser beam, the holes are burned into the filter and thus pass through the paper (filter paper, wrapping paper) that wraps the filter and enter The acetate tow made into the filter element has a depth of 1 mm and 2 mm. In all cases, the result was to allow dilution air to be drawn into the peripheral area of the filter. This concentrates the main smoke stream in the center of the filter, and in several cases, the end of the mouth of the filter is stained with an unsightly color. The position of the holes along the length of the filter can be modified to filter and dilute the effect 201016150, in particular if the holes are configured relative to the individual elements of a multi-segment filter, or if the filter has a ring configuration or There is an annular element, such as a peripheral layer made of sorbent material. Therefore, the benefit of several types of filter designs is to direct the smoke from the center of the filter to a position near or at the periphery of the filter. SUMMARY OF THE INVENTION According to one aspect of the present invention, a filter is provided for use in conjunction with a final product, the filter including a filter element, a wrap around the filter, and at least one vent. The air hole extends through the wrap into the filter element to a depth such that air drawn in through the vent hole enters a central region 0 of the filter element. The vent hole can be configured such that air drawn in through the vent hole preferably enters the vent hole The central area of the core. The vent may be defined by a surface that is more permeable to air in the central region of the filter than in a peripheral region of the filter. The vent may have a depth of at least 2 mm, preferably 2 to 3.5 mm. The vent may have a depth which is at least 25% of the diameter of one of the filters, preferably 25 to 50% of the diameter of the filter. The filter can include a plurality of such vents that can be disposed about at least one circumferential column or region of the filter. The filter can be a multi-stage filter such that the filter element includes two or more sections of 201016150 that are longitudinally disposed along the filter. The filter may be an annular filter such that at least a portion of the filter element includes a central portion surrounded by an annular portion, and the filter may further include a scented wire disposed longitudinally in a central region of the filter element. bundle. The wrap may be infiltrated by at least one flue gas combusted by the end of the grass and may be infiltrated by carbon monoxide. The vents or the vents can be fabricated using a laser beam. In accordance with a second aspect of the present invention, a smoking article is provided to include a filter as described above. According to a third aspect of the invention, a method is provided for making a filter for use with a smoking article. The filter includes a filter cartridge and a wrap surrounding the filter cartridge, the method can include fabricating at least one venting aperture extending through the wrap into the filter cartridge to a depth such that air drawn in through the venting aperture enters the A central area of the filter element. The method can include configuring the vent such that air drawn in through the vent preferably enters a central region of the filter. The method can include configuring the surface of the vent such that the surface is more permeable to air in a central region of the filter than in a peripheral region of the filter. The method can include configuring the vent to have a depth of at least 2 mm, preferably 2 to 3.5 mm. 201016150 The method can include configuring the vent to have a depth that is at least 25% of the diameter of one of the filters, preferably 25 to 50% of the diameter of the filter. The method can include generating a plurality of the vents, which can be disposed about at least one circumferential column or region of the filter. The method can include configuring the filter to be in the form of a multi-stage filter such that the filter element includes two or more sections disposed longitudinally along the filter. The method can include configuring the filter to be in the form of an annular filter such that at least a portion of the filter element includes a central portion surrounded by an annular portion. The method can include configuring the filter to include a scented tow that is longitudinally disposed in a central region of the filter element. The method may involve the use of a wrap that may be infiltrated by at least one flue gas combusted by the tobacco, and the flue gas may be carbon monoxide. The method can include the use of a laser beam to fabricate the vent or the vents, and the method can include the operation of a laser on a machine for making tobacco having the filter. [Embodiment] The vent hole in the conventional smoking product filter is formed only on the filter paper by pre-punching method or by using a laser beam to illuminate the filter paper on a combined good or product filter. Enter the peripheral area of the filter element and lightly burn a number of holes. 201016150 Figure 1A shows a longitudinal cross-sectional view of a simple construction of pre-perforated citron. The cigarette 10 includes a tobacco rod 12 attached to a filter 14' by a filter paper 16 to adhere to the fragrance 10 around the attachment position of the tobacco 12 and the filter 14. The filter paper 16 has a row of venting holes 18 extending around the periphery of the filter 14. The straw π includes tobacco wrapped in a paper wrap 19. The filter 14 encloses a filter cartridge 20 which is wrapped in a filter, mouth wrap 22 and made of acetate tow. The wrap layer is sufficiently permeable and air drawn through the vents 18 can pass through the wrap 22 to enter the sorrow 20. Figure 1A shows a longitudinal cross-sectional view of a cigarette having an inline laser formed vent. In addition to the vents 18, the scent 24 includes the same elements as the cigarettes of FIG. 1A, the vents 18 being fired by a focused laser beam and extending through the filter paper 16 through The bottom of the filter wrap 22 and deep into the filter element 20 - short distance. In general, the depth of the vent holes fired by the laser is between about 1 and 2 mm. ® In each case, when a smoker draws a lit cigarette, the flow of air through the 4 filter 14 is similar. The vents 18 are configured in the surface area of the filter 14 such that air entering the filter 14 flows along the peripheral region of the filter cartridge where the influent air is diluted from the smoldering rod 2 and through the filter 14. Smoke. In Fig. 1Α, the air flow is indicated by a small arrow 26, and the smoke flow is indicated by a large arrow 28. In addition, the air flow can be more clearly observed from the end of the filter of a cigarette that has been smoked, where the central area is stained by the accumulation of substances carried by the gas captured by the mouth (4). The area is lighter because there is a lighter smoke. Figure 1C shows a photograph of the end of a filter 14 having staining in a central region 30 and a lighter staining in the peripheral region 32 of the periphery. In contrast, a filter case provided by the present invention has a deeper venting opening, i.e., the filter element entering the filter has a deeper depth of extension. In this case, the air flow can be repaired to provide different dilution effects as compared to the flow in a filter having a conventional vent. The deeper vents allow the suction air through the vent to reach the center of the filter, so the fumes that are conducted along the center of the filter can be diluted. Fig. 2A shows a longitudinal cross-sectional view of a first example of a cigarette having a filter having a deeper vent. The fragrance 34 has the same construction as shown in Figure 1B except that the vents are deeper into the filter element 20 of the filter 14. Assuming that the pore walls of the pores (the filter material forming the pore boundaries in the filter element) are substantially uniform in terms of air permeability, the suction of the helium gas through the pores can enter the filter element through the depth of the pores, and A majority of the volume downstream of the filter element flows longitudinally from the vents. Arrow 26 in Fig. 2A indicates the flow of this air. This type of flue gas dilution is more uniform due to the dilution of the flue gas in both the filter element region and the peripheral region than the surface venting in the conventional pout. Fig. 2B is a longitudinal cross-sectional view showing a second example of a cigarette having a filter having a deeper vent. The cigarette 36 is substantially identical to the cigarette 34 shown in Figure 2A, with a series of deeper venting 201016150 holes 18 at the periphery of the filter 14. In this example, however, the air permeability in the walls of the holes is not uniform. Conversely, the closer the air is to the bottom of the hole, the greater the permeability. That is, the air permeability of the filter is greater in the area of the filter than in the outer area. This effect is due to the fact that as shown by the arrows 26, the intake air passing through the vents is more likely to enter the filter element area as compared with the peripheral area, so that the flue gas 28 is more diluted in the filter element area. Figure 2C shows a photograph of an end view of a filter 14 具有 having a deeper vent which preferably imparts air flow at the center of the filter. Compared to a cigarette having a conventional shallow vent, the staining caused by the material in the flue gas captured by the filter has a significant difference because the dyeing in the peripheral region 32 of the filter element is more severe than in the central region 30. Much more. Figure 2D shows a photograph of an end view of a filter 14 having a deeper vent. As can be seen from this figure, the deeper vents 18 substantially penetrate into the core 20 of the nozzle 14. ❹ In general, deep vents have several advantages, and it is preferred to further provide air dilution of the flue gas in the central region of the filter: - Filtration efficiency can be improved by selecting an appropriate depth of one of the holes. - If deep holes are combined with multi-stage filters, a wide range of filtration possibilities can be provided. - Annular filter construction can result in more efficient use'. For example, the use of an adsorbent material around the periphery of the mouthpiece will enhance the removal of unwanted vapor phase components from the flue gas. The consistency of ventilation levels will be changed to 201016150 because the percentage of errors caused by using the same equipment in deep holes is less than the percentage of errors caused by shallow holes. Therefore, the variability between the individual vent holes and even between different cigarettes is reduced. - The amount of flue gas oozing out from the vents is reduced. - During the smoking of cigarettes, the change in ventilation level caused by changes in the flow of air and smoke is reduced. - The flow of flue gas concentrated in the peripheral region can be used with filter paper and wrap paper that is porous or breathable to further promote the greater diffusion of unwanted gases, such as carbon monoxide, from the filter. - dilution of the air in the center means that more undiluted flue gas passes through the peripheral region of the filter, and the peripheral region may have a larger volume than the central region (depending on the depth of the deep vent), and thus Better filtration effect. A related point is that the same amount of filter material is deposited in a larger volume of filter, so the intensity of dyeing is reduced, improving the appearance of the filter during and after smoking. - The undyed area at the center of the filter can be used in conjunction with the scented tow in the filter element. Such tows can have a color while being disposed along the longitudinal axis of the filter element. A significant reduction in staining of the filter element area means that the tow does not become unclear during smoking of the cigarette. As is known in the art of wired ventilation, the outer diameter of the apertures is variable to provide a wide range of ventilation levels with a wide range of apertures. The diameter of the deep vents is generally between 0.25 and 0.01 mm, preferably between 0.2 and 0.15 mm. With a number of holes from 6 to 80 201016150, a ventilation level of 1 G% can be easily achieved. Obviously, a certain level of ventilation is to be achieved. 'The fewer holes used, the larger the outer diameter of the hole will be, and vice versa. For a certain level of ventilation, a hole having a smaller outer diameter has a function of reducing the bleed out of the vent hole in comparison with the diameter of the hole of the standard depth hole. The vents may have a depth which is at least φ 25% of the diameter of the filter, alternatively the depth is at least 50°. Preferably, the depth is at least 75% of the diameter of the filter. The vents may have a depth which is 25 to 50% of the diameter of the filter. For practical applications, the vents can be drilled into the filter by at least 2 mm. Preferably, the vents are drilled into the filter by 25 mm. Optionally, the vents are drilled into the filter by 3 mm, or alternatively 3.5 mm. Optimally, the vents are drilled into the filter 2 to the difference between the millimeters and the deep vents of the meter.
1.5毫米 -L—----- 根據本發明的深通氣孔可藉由任何方便技藝來製造。 特别地，藉由光束參數的改變，現有使用聚焦雷射光束以 製造淺通氣孔的方法可馬上改變以適用於深孔的製造。這 是特別吸引人的’因為現有連線或聯機雷射系統可針對依 據未發明的濾嘴和香菸之製造而被修改。 11 201016150 用於形成具有變化可渗透性的孔以提供據嘴中心較佳 空氣流動，使用一雷射以製造該深孔亦是一項方便的技 藝。雷射操作參數的適當選取將提供一光束，其以農生熱 之一方式燒進滤嘴滤芯的輯酸材料當中，使孔四周的材料 形成孔上部比孔下部（亦即’在濾芯的中心區域)具有較低的 不可滲透性。 深通氣孔可提供在沿濾嘴長度的任何地方，以製造所 需的過濾與稀釋功能。該濾嘴可為一單一元件濾嘴，其中， 該濾芯可包括一沿著其整個長度的單件濾芯材料。或者， 該濾嘴可為一多段濾嘴，其中，兩個、三個或多個濾嘴組 件或元件可沿著濾嘴長度依序配置。鮮元件可為不同遽 嘴材料所製造’諸如純醋酸絲東和包含賴粒醋酸絲束， ，者各提供不同過紐質。深孔可相對於不同區段位置沿 f遽嘴放置’所以該煙氣和空氣可被引導經過各別區 心或外圍部分，以調整整體過濾效果。 、 =地^菜通氣孔可有用地與環形滤嘴結合1.5 mm - L - The deep vent according to the present invention can be manufactured by any convenient technique. In particular, by the change of the beam parameters, the existing method of using a focused laser beam to make a shallow vent can be changed immediately to be suitable for the manufacture of deep holes. This is particularly attractive because existing wiring or inline laser systems can be modified for the manufacture of filters and cigarettes that are not invented. 11 201016150 For forming a hole with varying permeability to provide better air flow at the center of the nozzle, it is also a convenient technique to use a laser to make the deep hole. Appropriate selection of laser operating parameters will provide a beam of light that is burned into the acid-filter material of the filter element in one of the agricultural heats, so that the material surrounding the hole forms the upper part of the hole than the lower part of the hole (ie, 'at the center of the filter element Area) has low impermeability. Deep vents can be provided anywhere along the length of the filter to create the desired filtration and dilution functions. The filter can be a single component filter, wherein the filter cartridge can include a single piece of filter material along its entire length. Alternatively, the filter can be a multi-stage filter wherein two, three or more filter assemblies or elements can be sequentially arranged along the length of the filter. Fresh components can be made from different nozzle materials, such as pure acetate sulphate and lyophilized acetate tow, each providing a different quality. The deep holes can be placed along the f-pits relative to the different segment positions so that the flue gas and air can be directed through the respective center or peripheral portions to adjust the overall filtering effect. , = ground vegetable vents can be usefully combined with a ring filter
=;::#，心部分，其為Η嘴W 刀所圍繞。深孔可被使用以引釋空 心區域，所以該煙氣被侷限於環狀部分。 進入该中 如果一多段濾嘴中的一個或多個縱向區段 „ ’環形和多段濾嘴構型可與深通氣孔一起結合J:形 止提供廣泛變化之可能濾嘴元件與流合二 破產生以達成許多不同效果。 ^過遽'可 12 201016150 該等通氣孔可配置在一圍繞濾嘴的單一列當中，或配 置在一包括兩個或多個緊密間隔列的區域當中。在列或區 域中孔的數目以及該等孔之間的空間可被選取以達到所需 的通氣水平。例如，具有30個孔的一列或區域可被認為具 有一相對高水平的通風功能。另外，具有變化深度的該等 深孔可被結合在一單一列或區域當中，可能地，與傳統淺 通氣孔作更進一步的結合。 表示在圖2A和2B以及說明於上文的該等範例皆屬於 一香菸的簡單結構，其中，該濾嘴具有一圍繞其醋酸濾芯 的紙裹層，然後藉由將濾嘴和菸草桿固持於一起的濾嘴紙 所圍繞。本發明可被應用的其它香菸和菸品可具有更為複 雜的結構，特別地具有圍繞該濾芯的各種紙和裹層。例如， 多段濾嘴可包括若干層紙，用於捲裹和連接各種區段。然 而，針對本發明的目的，該名詞”裹層”當應用於濾嘴時， 將包括捲裹於濾芯四周的單一或複數層，且如果該等孔在 菸品組裝前即製造在該濾嘴上，則僅當作濾嘴裹層來應 用，又如果該等孔在於品組裝後才製造，則當作該濾嘴裹 層和濾嘴紙來應用。該等深通氣孔延伸穿過該裹層並進入 濾嘴的濾芯材料當中，不管該裹層係由多少層所構成。 在該濾嘴結合成菸品之前或之後，該等深通氣孔皆可 成型於濾嘴當中。如果深通氣孔將成型於已組合的菸品之 濾嘴當中，則使用於成型該深通氣孔的雷射可安裝在組合 菸品的機器之上。 13 201016150 【圖式簡單說明】 藉由隨附圖式所表現的範例，期望更佳暸解本發明的 功能與效益，其中： 圖1A和1B表示依據習知技藝包含淺短通氣孔的香菸 之橫剖面視圖； 圖1C係一依據習知技藝的一包含淺短通氣孔之吸菸 後之香菸的濾嘴之末端具有染色式樣的相片； 圖2A表示一依據本發明的一具體實施例的一包含深 長通氣孔之香菸的橫剖面視圖； 圖2B表示一依據本發明的更一具體實施例的一包含 深長通氣孔之香菸的橫剖面視圖； 圖2C係一表示圖2B當中吸菸後之香菸的濾嘴之末端 上的染色式樣之相片；和 圖2D係一表示一包括深長通氣孔的濾嘴端的橫剖面 視圖。 【主要元件符號說明】 10 香於 12 菸草桿 14 濾嘴 16 濾嘴紙 18 通氣孔 19 紙裹層 20 浪'^i 22 裹層 14 201016150 24 香菸 26 小箭頭 28 大箭頭/煙氣 30 中心區域 32 外圍區域. 34 香於 36 香於=;::#, the heart part, which is surrounded by a grin. Deep holes can be used to evict the hollow area, so the smoke is confined to the annular portion. Into this, if one or more of the longitudinal sections of a multi-stage filter „ 'ring and multi-stage filter configurations can be combined with the deep vents J: the shape provides a wide range of possible filter elements and convection Breaking occurs to achieve a number of different effects. ^过遽'12 12 201016150 The vents may be arranged in a single column surrounding the filter or in an area comprising two or more closely spaced columns. Or the number of holes in the region and the space between the holes can be selected to achieve the desired level of ventilation. For example, a column or region having 30 holes can be considered to have a relatively high level of ventilation function. The deep holes of varying depth may be combined in a single column or region, possibly in a further combination with conventional shallow vents. The examples shown in Figures 2A and 2B and illustrated above belong to one A simple structure of a cigarette in which the filter has a paper wrap around its acetate filter and is then surrounded by a filter paper holding the filter and the tobacco rod together. The present invention can be applied It can have a more complex structure, particularly with various papers and wraps around the filter element. For example, a multi-segment filter can include several layers of paper for wrapping and joining various sections. For the purposes of the present invention, the term "wrap", when applied to a filter, will include a single or multiple layers wrapped around the filter element, and if the holes are made on the filter prior to assembly of the smoking article, Applied only as a filter wrap, and if the holes are manufactured after assembly, they are applied as the filter wrap and filter paper. The deep vents extend through the wrap and enter Among the filter material of the filter, no matter how many layers are formed by the coating layer, the deep vent holes can be formed in the filter before or after the filter is combined into the smoking article. If the deep vent hole is formed in the filter Among the filters of the combined smoking articles, the laser used to form the deep vents can be mounted on the machine of the combined smoking article. 13 201016150 [Simple description of the drawings] Examples by the accompanying drawings , expecting a better understanding of the present invention 1A and 1B show a cross-sectional view of a cigarette comprising a shallow vent according to the prior art; FIG. 1C is a filter of a cigarette containing a short vent according to the prior art. Figure 2A shows a cross-sectional view of a cigarette comprising a deep vent according to an embodiment of the present invention; and Figure 2B shows an embodiment of a further embodiment in accordance with the present invention. A cross-sectional view of a cigarette having a deep vent; FIG. 2C is a photograph showing a dyed pattern on the end of the filter of the cigarette after smoking in FIG. 2B; and FIG. 2D is a view showing a filter end including a deep vent Cross-sectional view. [Main component symbol description] 10 Fragrant in 12 Tobacco rod 14 Filter 16 Filter paper 18 Vent 19 Paper wrap 20 Wave '^i 22 Wrap 14 201016150 24 Cigarette 26 Small arrow 28 Big arrow / smoke Gas 30 Central area 32 Peripheral area. 34 Fragrant in 36 Fragrant
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