CN105473009B - filter for cigarette - Google Patents
filter for cigarette Download PDFInfo
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- CN105473009B CN105473009B CN201380078951.4A CN201380078951A CN105473009B CN 105473009 B CN105473009 B CN 105473009B CN 201380078951 A CN201380078951 A CN 201380078951A CN 105473009 B CN105473009 B CN 105473009B
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- Prior art keywords
- filter
- wrapping
- outer peripheral
- paper
- cigarette
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
Abstract
The present invention provides a filter for a cigarette, which is connected with one end of a cigarette rod using a roll paper to roll tobacco shreds through joint paper, wherein the filter comprises the following components: a filter material disposed at a mouth end of the filter; and a winding paper that winds the filter medium so as to cover the outer peripheral surface of the filter medium, the winding paper coloring a coating surface that covers the filter medium, and the filter further includes a light transmitting section that is formed in a filter tip end of the filter inside a filter cross section of the coating surface of the winding paper.
Description
Technical Field
The present invention relates to a filter for cigarettes.
Background
filter cigarettes provided with a filter on the mouthpiece side of the cigarette are widely known. A filter cigarette has a filter tip connected to one end of a cigarette rod (winding section) in which tobacco shreds are wound by a wrapping paper via a tipping paper sheet. Such a filter for cigarette is formed by wrapping a filter medium such as an acetate tow with a wrapping paper.
In recent years, a technique for providing a filter for cigarettes having excellent design properties has been desired. In view of this, there has been proposed a technique of providing a characteristic appearance to the end face of a filter by incorporating a natural-colored flavor into an adhesive for bonding a filter medium of a filter and a wrapping paper (filter plug wrapping paper (プ ラ グ ラ ッ プ)) (see, for example, patent document 1).
Documents of the prior art
patent document
Patent document 1: international publication No. 2009/080604
Disclosure of Invention
Problems to be solved by the invention
However, it is considered that the conventional techniques for improving the pattern design of the filter have room for improvement. The present invention has been made in view of the above circumstances, and an object thereof is to provide a filter for cigarettes having a more excellent design than the conventional one.
Means for solving the problems
In the present invention, the following means is adopted to solve the above problems. That is, the present invention provides a filter for a cigarette, which is connected to one end of a cigarette rod in which cut tobacco is wound by a wrapping paper via a tipping paper, the filter comprising: a filter material disposed at a mouth end of the filter; and a winding paper that winds the filter medium so as to cover an outer peripheral surface of the filter medium, the winding paper coloring a coating surface that covers the filter medium, and the filter further includes a light transmitting section that is formed in a filter end of the filter and inside a filter cross section of the coating surface of the winding paper.
Here, as a principle that the color of an object can be seen, when visible light reflected from the object enters the eyes of a human being, the eyes feel the intensity of light and the difference in wavelength as a stimulus, and the brain operates, thereby recognizing "color". In the present invention, the visible light reflected by the coated surface of the colored wrapping paper can be transmitted through the light transmitting section and released to the outside from the mouth end of the filter. In this way, the reflected light from the coated surface of the colored winding paper reaches the eyes of the smoker through the light transmitting section, and the smoker can thereby recognize the color of the colored coated surface. As a result, the design of the filter for cigarette can be improved compared with the conventional one. That is, according to the present invention, a filter for cigarette having a more excellent design than the conventional one can be provided.
here, the light transmitting section may be formed at a mouth end of the filter so as to include a gap between fibers forming an outer peripheral region of the filter medium. By causing the gaps formed between the fibers constituting the filter medium to function as light transmitting portions, reflected light from the coated surface in the colored paper roll can be made to appropriately reach the eyes of the smoker, and the smoker can recognize the color of the coated surface.
in addition, when the gaps formed between the fibers constituting the filter medium are caused to function as the light transmitting portions as described above, the fiber layer density in the outer peripheral region of the filter medium may be relatively lower than the fiber layer density in the inner peripheral region located closer to the central axis of the filter medium than the outer peripheral region. By reducing the fiber layer density in the outer peripheral region of the filter medium in this manner, the transmittance when visible light reflected by the covering surface of the winding paper passes through the gaps formed between the fibers constituting the filter medium can be appropriately increased, and the color of the colored covering surface can be visually confirmed with good quality.
The light transmitting section may be formed at a mouth end of the filter, and may include a gap section formed between a covering surface of the wrapping paper and an outer peripheral surface of the filter medium. In this way, by causing the gap portion formed between the covering surface of the winding paper and the outer peripheral surface of the filter medium to function as the light transmitting portion, the reflected light from the covering surface in the colored winding paper can be made to appropriately reach the eyes of the smoker, and the smoker can recognize the color of the covering surface.
Here, the wrapping surface of the wrapping paper may be bonded to the outer peripheral surface of the filter medium at a part of the filter medium in the circumferential direction, and the gap portion may be formed in a non-bonded region where the wrapping surface of the wrapping paper and the outer peripheral surface of the filter medium are not bonded in the mouth end of the filter. Thus, a gap portion can be formed between the wrapping surface of the winding paper and the outer peripheral surface of the filter medium.
The adhesive for bonding the wrapping surface of the wrapping paper and the outer peripheral surface of the filter medium may be applied along the longitudinal direction of the filter, and an uncoated region where the adhesive is not applied may be formed at the mouth end of the filter, so that the gap portion may be formed over the entire circumference of the mouth end. Accordingly, the light transmitting portion can be formed annularly over the entire circumference of the mouth end of the filter. As a result, the color visibility of the coated surface of the colored roll paper can be further improved, and the filter design can be further improved.
The light transmitting section may be configured to include a transparent coating layer laminated on the coating surface of the wrapping paper at the mouth end of the filter. Accordingly, the transparent coating layer can be provided between the coating surface of the roll paper and the outer peripheral surface of the filter medium, and therefore, the same effect as in the case of providing the gap portion can be achieved. That is, the transparent coating layer can transmit the reflected light of the visible light reflected on the coated surface of the roll paper. Thus, when a smoker observes the mouth end of the filter, the visible light reflected by the coating surface of the wrapping paper can be made to reach the eyes of the smoker, and the smoker can appropriately recognize the color of the coating surface of the colored wrapping paper.
The winding paper may be colored by printing a printing ink on the cover surface. Accordingly, in the cigarette manufacturing process, the ink can be prevented from dropping off during handling or from being dissolved out by saliva of a smoker during smoking.
Further, the means for solving the problem of the present invention may be employed in combination as much as possible.
Effects of the invention
According to the present invention, a filter for cigarettes having a more excellent design than conventional filters can be provided.
drawings
figure 1 is a side view of a cigarette of embodiment 1;
Fig. 2 is a view showing a schematic structure of a cigarette according to embodiment 1;
Fig. 3 is a diagram illustrating the bonding form of a plug wrap and a filter segment according to embodiment 1;
Fig. 4 is a diagram showing a filter in which a filter segment is wound with a plug wrap according to embodiment 1;
Fig. 5 is a diagram illustrating a filter according to a first modification;
Fig. 6 is a view showing a schematic configuration of a filter according to a first modification;
Fig. 7 is a diagram showing a schematic configuration of a filter according to a second modification;
Fig. 8 is a diagram showing a schematic configuration of a filter according to embodiment 2.
Detailed Description
Embodiments of the filter for cigarettes according to the present invention will be described below with reference to the drawings. It is to be noted that the dimensions, materials, shapes, relative arrangements, and the like of the components described in the present embodiment are not intended to limit the technical scope of the present invention to these embodiments unless otherwise specified.
< embodiment 1>
Fig. 1 is a side view of a cigarette 1 according to embodiment 1. Fig. 2 is a diagram showing a schematic structure of the cigarette 1 according to embodiment 1. Fig. 2 is a sectional view showing a part of the cigarette 1. The cigarette 1 has a cigarette rod 2 and a filter 4 connected to one end of the cigarette rod 2 via a tipping paper (チ ッ プ ペ ー パ ー) 3. The cigarette rod 2 is formed into a cylindrical shape (rod shape) by winding tobacco shred 21 with a roll paper 22. The cigarette rod 2 is also sometimes referred to as a "single wrap". The filter 4 is also formed into a cylindrical shape (rod shape) as shown in fig. 1. Arrow a in fig. 1 indicates the longitudinal direction of the cigarette 1 (cigarette rod 2, filter 4). Hereinafter, in the present specification, a cross section orthogonal to the long axis of the cigarette 1 (cigarette rod 2, filter 4) will be referred to as a "cross section" hereinafter.
The filter 4 is a member for filtering (filtrating) smoke components contained in mainstream smoke generated at the time of smoking the cigarette 1. Hereinafter, the end of the filter 4 on the side connected to the cigarette rod 2 is referred to as a "connecting end", and the end opposite to the connecting end is referred to as a "mouthpiece end 40". The mouth end 40 of the filter 4 is the end that the smoker holds when smoking.
The filter 4 comprises: a filter segment 41 as a filter medium (filter material), and a plug wrap 42 as a take-up paper around which the filter segment 41 is wound. The filter segment 41 is a fiber bundle formed by, for example, cylindrically shaping cellulose acetate. The plug wrap 42 is air permeable. As shown in figure 2, at the mouth end 40 of the filter 4, the end face of the plug wrap 42 and the end face of the filter segment 41 are aligned.
The cigarette rod 2 and the filter 4 are integrally connected by being wound with a tipping paper 3. The tipping paper 3 is bonded to the plug wrap 42 and the wrapping paper 22 so as to cover the entire outer periphery of the plug wrap 42 of the filter 4 and to cover the end portion side of the wrapping paper 22 in the cigarette rod 2. A ventilation hole 31 for introducing outside air (air) that dilutes mainstream smoke into the filter 4 is perforated in the tipping paper 3 in a region covering the filter 4. The vent holes 31 are so-called ventilation outside air introduction holes, and a plurality of joint papers 3 are provided. The presence or absence of the vent holes 31 in the joint paper 3 is arbitrary, and the arrangement of the vent holes 31 may be appropriately changed. Since the plug wrap 42 has air permeability as described above, the outside air passing through the air holes 31 of the plug paper 3 is introduced into the filter 4 by passing through the plug wrap 42.
Fig. 3 is a diagram illustrating the bonding form of the plug wrap 42 and the filter segment 41 according to embodiment 1. Reference numeral 420 shown in fig. 3 is a covering surface that covers the filter segment 41 so as to face the outer peripheral surface 410 of the filter segment 41 when the filter segment 41 is wound. The surface of the plug wrap 42 opposite to the wrapping surface 420 is referred to as an outer peripheral surface 421. The outer peripheral surface 421 of the plug wrap 42 is a surface to which the tipping paper 3 is bonded.
In the present embodiment, the coating surface 420 of the plug wrap 42 is colored by printing. Reference numeral 45 shown in fig. 3 denotes a printing ink applied to the entire surface of the cover surface 420 of the plug wrap 42. The printing ink 45 may be gravure ink, flexo ink, or the like. In the present embodiment, the coating surface 420 of the plug wrap 42 is colored in one color, but may be colored in a plurality of colors. When the colored ink is printed on the cover surface 420 of the plug wrap 42 by gravure printing, the plug wrap 42 is preferably made to have physical properties excellent in gravure printability as described below. For example, the plug wrap 42 preferably has a smoothness of the wrapping surface 420 of 80 sec or more, more preferably 150 sec or more. The plug wrap 42 preferably has a basis weight of 25 gms or more, more preferably 30 gms or more. The plug wrap 42 preferably has a Stockigt sizing degree of 2.8 sec or less. The coating surface 420 of the plug wrap 42, i.e., the surface to be printed with the coloring ink, is preferably coated with a coating agent such as starch before printing. By printing the coloring ink on the surface of the printing object coated with the coating agent in this way, the coloring effect of the coloring ink can be improved. Further, by applying the coating agent to the print target surface of the plug wrap 42 as described above, the print target surface can be provided with sizing properties and water resistance.
In the present embodiment, since the wrapper surface 420 of the plug wrap 42 is colored by printing the printing ink 45, it is not possible to drop the ink during handling in the manufacturing process of the cigarette 1, or the ink is not dissolved by saliva of a smoker when smoking the cigarette 1, which is preferable. However, the method of coloring the coating surface 420 of the plug wrap 42 is not limited to the printing technique, and for example, a dyeing technique using a dye may be used. For example, by impregnating the base paper of the plug wrap 42 in an aqueous solution in which a pigment is dissolved in water, the fibers of the base paper can be colored with the pigment (dye). In the production of the rolled paper, the pigment and the fiber may be mixed in advance, and the paper may be colored in the papermaking step.
As shown in fig. 3, the plug wrap 42 has a rectangular shape. Overlapping regions 42a and 42b that overlap and are bonded to each other when the filter segment 41 is wound are formed in a pair of long sides of the plug wrap 42. The length of the long side of the plug wrap 42 is approximately equal to the axial length of the filter segment 41. The long sides of the plug wrap 42 are arranged along the longitudinal direction a of the cigarette 1 after the cigarette 1 is manufactured. In the overlapping area 42a of the plug wrap 42, an adhesive (hereinafter, referred to as "first adhesive") 43 is applied to the wrapping surface 420 side. In the manufacturing process of the cigarette 1, when the filter segment 41 is wound with the plug wrap 42, the coating surface 420 of the plug wrap 42 is wound along the outer peripheral surface 410 of the filter segment 41. At this time, the overlapping region 42a on the wrapping surface 420 side of the plug wrap 42 is overlapped with the overlapping region 42b on the outer peripheral surface 421 side, whereby the overlapping regions 42a and 42b are bonded to each other with the first adhesive 43. As a result, the plug wrap 42 is formed into a cylindrical shape.
as shown in fig. 3, an adhesive (hereinafter, referred to as "second adhesive") 44 is applied to the middle portion of the wrapping surface 420 of the plug wrap 42 along the longitudinal direction of the plug wrap 42. The second adhesive 44 is an adhesive for bonding the coating surface 420 of the plug wrap 42 to the outer peripheral surface 410 of the filter segment 41. As shown in fig. 3, the transverse width (indicated by reference sign W1 in fig. 3) of the second adhesive 44 is set to a size of about a fraction to a few tenths of a short side of the plug wrap 42. In the manufacturing process of the cigarette 1, the wrapping surface 420 of the plug wrap 42 is wound along the outer peripheral surface 410 of the filter segment 41, and the wrapping surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41 are bonded to each other with the second adhesive 44.
Fig. 4 is a diagram showing a filter 4 in which a filter segment 41 is wound with plug wrap 42 according to embodiment 1. Fig. 4 shows the state of the mouth end 40 of the filter 4 (filter segment 41). The dotted line shown inside the plug wrap 42 shown in fig. 4 indicates a colored cover surface 420, which corresponds to the inner surface of the plug wrap 42. As shown, the wrapper 420 of the plug wrap 42 is partially bonded to the outer peripheral surface 410 of the filter segment 41 with the second adhesive 44.
In fig. 4, symbol Rb denotes a bonding region of the second adhesive 44 provided between the two boundary portions (boundary surfaces) formed along the circumferential direction of the filter segment 41 and the plug wrap 42 at the mouth end 40 of the filter 4. Note that Rnb denotes a non-bonded region where the second adhesive 44 is not provided in the boundary between the filter segment 41 and the plug wrap 42. As shown in the drawing, the plug wrap 42 is bonded to the outer peripheral surface 410 of the filter segment 41 in a bonding region Rb formed in a part of the filter segment 41 in the circumferential direction.
Here, the non-adhesive region Rnb formed at the mouth end 40 of the filter 4 does not adhere to the wrapping surface 420 of the plug wrap 42 to the outer peripheral surface 410 of the filter segment 41. Therefore, in the portion of the nozzle end 40 corresponding to the non-bonded region Rnb, as shown in fig. 4, a gap portion 50 as a gap region (hollow region) is formed between the outer peripheral surface 410 and the covering surface 420.
As described above, in the filter 4 of the present embodiment, the gap portion 50 is formed inside the filter cross section of the coating surface 420 of the plug wrap 42, that is, between the plug wrap 42 and the filter segment 41 in the non-bonded region Rnb of the mouth end 40. The gap portion 50 functions as a light transmitting portion 5 through which reflected light that is reflected by the wrapping surface 420 of the plug wrap 42 transmits visible light. Here, the light transmitting section 5 formed by the gap section 50 of the filter 4 is positioned at the nozzle end 40 which is the end on the nozzle side in the longitudinal direction of the filter 4. Therefore, the visible light outside the cigarette 1 is emitted to the wrapping surface 420 of the plug wrap 42 through the light transmitting portion 5, and the visible light reflected on the wrapping surface 420 is released to the outside again through the light transmitting portion 5. Visible light reflected by the cover 420 of the plug wrap 42 then reaches the eye, thereby identifying the color of the cover 420.
Since the filter segment 41 is a fiber bundle obtained by molding fibers constituting a filter medium, visible light reflected by the coating surface 420 of the plug wrap 42 can be transmitted to the outside of the suction end face side from the gaps 412 between the fibers 411 forming the outer peripheral region 41a of the filter segment 41. Therefore, like the reflected light from the coating surface 420 of the plug wrap 42 released to the outside through the gap portion 50, the reflected light from the coating surface 420, which is transmitted through the gaps 412 between the fibers 411 forming the outer peripheral region 41a of the filter segment 41 and released to the outside, reaches the eyes of the smoker, so that the smoker can recognize the color of the coating surface 420.
As described above, the filter 4 of the present embodiment includes the light transmitting portion 5 that transmits visible light through the reflected light reflected by the wrapping surface 420 of the plug wrap 42, in the filter end 40 and inside the filter cross section of the wrapping surface 420 of the plug wrap 42. In the filter 4 of the present embodiment, the light transmitting portion 5 is formed to include the gap portion 50 formed between the coating surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41 and the gap 412 between the fibers 411 forming the outer peripheral region 41a of the filter segment 41. Thus, when the smoker views the filter 4 from the mouthpiece end 40 side, the reflected light of visible light reflected by the wrapping surface 420 of the plug wrap 42 can reach the eyes of the smoker through the light transmitting portion 5, and the smoker can recognize the color of the colored wrapping surface 420. As a result, the design of the filter 4 and the cigarette 1 incorporating the filter 4 can be improved as compared with the conventional art. That is, the filter 4 and the cigarette 1 having a more excellent design than the conventional ones can be provided.
In addition, according to the filter 4 configured as described above, the fibers 411 forming the outer peripheral region 41a of the filter segment 41 can diffusely reflect the reflected light from the coating surface 420 of the plug wrap 42. Thereby, the visible light reflected by the coating surface 420 is diffused, and thus, the smoker can more easily observe the color of the colored coating surface 420.
As described above, the filter 4 of the present embodiment includes the gap portion 50 and the gap 412 and is formed with the light transmitting portion 5, but the light transmitting portion 5 may be formed using either one of them. That is, as a method of forming the light transmitting portion 5, either the gap portion 50 or the gap 412 may be independently employed. For example, even when the mouth end 40 of the filter 4 is not provided with the gap portion 50, for example, by bonding the entire surfaces of the wrapping surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41, the light transmitting portion 5 may be formed by the gap 412 between the fibers 411 forming the outer peripheral region 41a of the filter segment 41, and the reflected light from the colored wrapping surface 420 may reach the eye smoker through the light transmitting portion 5 (gap 412). This makes it possible to make the smoker recognize the color of the colored coating surface 420, and to improve the design of the filter 4.
< first modification >
Next, a filter 4A according to a first modification will be described. In the first modification, as shown in fig. 5, the uncoated region 46 to which the second adhesive 44 is not applied is provided in the end region on the edge portion side constituting the mouth end 40 after filter formation in the longitudinal direction of the coating surface 420 of the plug wrap 42. Further, the second adhesive 44 is applied along the longitudinal direction of the wrapping surface 420 in the plug wrap 42. At this time, the second adhesive 44 may be applied to the coating surface 420 in a band shape, or may be applied in a spiral or wave shape.
As in this modification, when the second adhesive 44 is applied along the longitudinal direction of the coating surface 420 (the longitudinal direction after filter molding), the non-adhesive region Rnb can be formed over the entire circumferential region (the entire circumference) of the mouth end 40 of the filter 4A after the molding of the filter 4A by forming the non-coated region 46 in the end region on the side corresponding to the mouth end 40. That is, the gap portion 50 may be formed annularly over the entire circumferential area (the entire circumference) of the mouth end 40 of the filter 4A. As a result, as shown in fig. 6, the light transmitting portion 5 for transmitting the reflected light from the colored coating surface 420 and emitting the reflected light to the outside can be formed annularly over the entire circumferential region of the filter 4A. Therefore, the range in which the light transmitting portion 5 is formed can be enlarged as compared with the example shown in fig. 4. This can further improve the visibility of the color of the colored coating surface 420, and can further improve the design of the filter 4A.
< second modification >
Next, a filter 4B according to a second modification will be described. Fig. 7 is a diagram showing a schematic configuration of a filter 4B according to a second modification. Fig. 7 shows the structure of the position of the mouth end 40 of the filter 4B. In fig. 7, reference numeral 141 denotes a filter segment according to a second modification. The filter 4B according to the second modification is different from the above-described embodiments in the structure of the filter segment 141. Hereinafter, the above-described differences will be mainly explained.
The filter segment 141 includes: an outer peripheral region 41a including an outer peripheral surface 410; and an inner peripheral region 41b located more inward (filter medium center side) than the outer peripheral region 41 a. Here, the technical significance of the inner peripheral region 41b and the outer peripheral region 41a will be described. The outer peripheral region 41a of the filter segment 141 is formed as a low-density layer having a relatively lower density of fibrous layers than the inner peripheral region 41 b. The inner peripheral region 41b has the same fiber layer density as a filter medium used for a general cigarette filter.
The fiber layer density of the inner peripheral region 41b of the filter segment 141 is adjusted within a range that satisfies a required filtering performance in filtering smoke components contained in mainstream smoke, for example. On the other hand, the outer peripheral region 41a of the filter segment 141 has both: a light transmitting section 5 for transmitting visible light that has passed through the gaps 412 between the fibers 411 forming the outer peripheral region 41a and has been reflected by the wrapping surface 420 of the plug wrap 42, and for allowing the transmitted visible light to reach the eyes of the smoker; a filtering function of filtering smoke components contained in the mainstream smoke. When the outer peripheral region 41a of the filter segment 141 is made to function as the light transmitting portion 5, it is advantageous to reduce the fiber layer density of the outer peripheral region 41a as much as possible from the viewpoint of improving the transmittance of visible light.
Therefore, in the second modification, the fiber layer density of the outer peripheral region 41a of the filter segment 141 is set to 0.05 to 0.12[ g/cm ]3]the range of (1). However, the above range of the fiber layer density in the outer peripheral region 41a is an example, and is not limited to this range. In this modification, the method comprisesThe outer peripheral region 41a of the filter segment 141 is formed as a low-density layer having a relatively lower density of fiber layers than the inner peripheral region 41b, and the transmittance of visible light reflected by the wrapping surface 420 of the plug wrap 42 when the visible light passes through the gaps 412 formed between the fibers 411 in the outer peripheral region 41a of the filter segment 141 can be suitably increased, and the color of the colored wrapping surface 420 can be observed well. In the present modification, from the viewpoint of ensuring the transmittance of visible light, even if the fiber layer density of the outer peripheral region 41a of the filter segment 141 is reduced, the fiber layer density of the inner peripheral region 41b is increased relative to the outer peripheral region 41a, whereby the filtering performance required for the entire filter can be secured.
< embodiment 2>
Next, a filter 4C according to embodiment 2 will be described. Fig. 8 is a diagram showing a schematic configuration of a filter 4C according to embodiment 2. Fig. 8 shows the structure of the position of the mouth end 40 of the filter 4C. In the filter 4C, the filter segment 41 and the plug wrap 42 are the same as those of the filter 4 according to embodiment 1. In the present embodiment, the transparent coating layer 6, which is a transparent coating layer, is formed by laminating the colored coated surface 410 of the plug wrap 42. The transparent coating layer 6 laminated on the coating surface 420 of the plug wrap 42 faces the outer peripheral surface 410 of the filter segment 41 and is interposed between the coating surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41.
The transparent coating layer 6 interposed between the coating surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41 functions as the light transmitting portion 5 in the same manner as the gap portion 50 in embodiment 1. That is, the transparent coating layer 6 transmits the reflected light of the visible light reflected by the coating surface 420 of the plug wrap 42. Thus, when the smoker views the mouth end 40 of the filter 4, the visible light reflected by the wrapping surface 420 of the plug wrap 42 can reach the eyes, and the smoker can recognize the color of the colored wrapping surface 420.
the transparent coating layer 6 may also be formed by thickening a clear lacquer, for example, on the coating face 420 of the plug wrap 42. In this case, the thickness of the varnish is preferably set to about 50 μm in order to ensure the transmittance of visible light reflected by the coated surface 420. The transparent coating layer 6 may be formed by, for example, attaching a transparent film such as a cellulose film to the coating surface 420 of the plug wrap 42. In this case, from the viewpoint of ensuring the transmittance of visible light reflected on the cladding surface 420, it is preferable to ensure the film thickness to be about 40 μm. However, the above-mentioned paint thickness and film thickness are exemplified thicknesses, and the applicable range is not limited to these values.
In the present embodiment, by laminating the transparent coating layer 6 on the cover surface 420 of the plug wrap 42, the light transmitting portion 5 corresponding to the thickness of the transparent coating layer 6 can be formed between the cover surface 420 and the outer peripheral surface 410 regardless of the bonding form of the cover surface 420 of the plug wrap 42 and the outer peripheral surface 410 of the filter segment 41. Therefore, as shown in embodiment 1, the non-bonded region Rnb may not be formed on the bonding surface between the covering surface 420 and the outer peripheral surface 410 of the nozzle end 40. That is, even if the coating surface 420 and the outer peripheral surface 410 are bonded over the entire circumference of the filter 4 at the mouth end 40, the light transmitting portion 5 can be appropriately formed by the transparent coating layer 6.
While the preferred embodiments of the present invention have been described above, it is needless to say that various modifications, improvements, combinations, and the like can be made to the filter for cigarette of the present invention.
Description of the symbols
1. cigarette
2. cigarette rod
3. joint paper
4. Filter tip
5. light transmitting part
6. transparent coating layer
21. tobacco shred
22. roll paper
31. vent hole
40. suction nozzle end
41. filter section
41 a. outer peripheral region
41 b. inner peripheral region
42. filter stick wrapping paper
43. first adhesive
44. second adhesive
45 printing ink
50. gap part
410. peripheral surface
411. fiber
412. gap
420. coating surface
420A. through passage
Claims (8)
1. A filter for a cigarette, which is connected to one end of a cigarette rod in which cut tobacco is wound by a cigarette paper through tipping paper, comprising:
A filter material disposed at a mouth end of the filter;
A winding paper for winding the filter medium so as to cover the outer peripheral surface of the filter medium,
The wrapping paper colors the wrapping surface covering the filter material,
The filter further includes a light transmitting portion formed at a mouth end of the filter inside a cross section of the filter of the wrapping surface of the wrapping paper, the light transmitting portion being capable of transmitting visible light and recognizing a color of the wrapping surface by emitting reflected light when reflected by the wrapping surface to the outside.
2. The filter for cigarette of claim 1, wherein,
The light transmitting section is configured to include a gap between fibers forming an outer peripheral region of the filter at a mouth end of the filter.
3. A filter for a cigarette as in claim 2 wherein,
the fiber layer density in the outer peripheral region of the filter is relatively lower than the fiber layer density in the inner peripheral region located closer to the filter central axis side than the outer peripheral region.
4. A filter for cigarettes according to any one of claims 1 to 3,
the light transmitting section is configured to include a gap section formed between a wrapping surface of the wrapping paper and an outer peripheral surface of the filter medium at a mouth end of the filter.
5. A filter for cigarettes as claimed in claim 4,
A part of the wrapping surface of the wrapping paper in the circumferential direction of the filter medium is bonded to the outer circumferential surface of the filter medium,
The gap portion is formed in a non-adhesive region where the wrapping surface of the wrapping paper and the outer peripheral surface of the filter medium are not bonded in the mouth end of the filter.
6. A filter for cigarettes as claimed in claim 5,
An adhesive for bonding the wrapping surface of the wrapping paper and the outer peripheral surface of the filter medium is applied along the longitudinal direction of the filter,
An uncoated region where the adhesive is not applied is formed at a mouth end of the filter, and thereby the gap portion is formed over the entire circumference of the mouth end.
7. the filter for cigarette of claim 1, wherein,
The light transmitting section is formed at a mouth end of the filter and includes a transparent coating layer laminated on a coating surface of the wrapping paper.
8. The filter for cigarette of claim 1, wherein,
the roll of paper is colored by printing a printing ink on the cover.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/072264 WO2015025376A1 (en) | 2013-08-21 | 2013-08-21 | Cigarette filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105473009A CN105473009A (en) | 2016-04-06 |
| CN105473009B true CN105473009B (en) | 2019-12-17 |
Family
ID=52483186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380078951.4A Active CN105473009B (en) | 2013-08-21 | 2013-08-21 | filter for cigarette |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3037007B1 (en) |
| JP (1) | JP6148733B2 (en) |
| KR (1) | KR101748537B1 (en) |
| CN (1) | CN105473009B (en) |
| RU (1) | RU2629095C1 (en) |
| WO (1) | WO2015025376A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3501304A4 (en) * | 2016-08-17 | 2020-04-15 | Japan Tobacco, Inc. | Filter and tobacco product |
| GB201720490D0 (en) * | 2017-12-08 | 2018-01-24 | Essentra Filter Products Dev Co Pte Ltd | Tobacco smoke filter |
| CN110279145A (en) * | 2019-06-14 | 2019-09-27 | 广东精彩国际生物科技有限公司 | A kind of plugging device and plugging technology |
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| CN1141145A (en) * | 1995-07-27 | 1997-01-29 | 马重子 | Anti-countfeit colored filter of cigarette and method for coloration therefor |
| CN101581060A (en) * | 2008-05-16 | 2009-11-18 | 印莫格不动产采购有限责任公司 | Cigarette packaging material and cigarettes |
| GB2475856A (en) * | 2009-12-02 | 2011-06-08 | British American Tobacco Co | Flavoured plugwrap |
| EP2462821A1 (en) * | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Smoking article having embossed transparent wrapper |
| CN203058273U (en) * | 2012-12-12 | 2013-07-17 | 湖北中烟工业有限责任公司 | Cigarette printed with fluorescent pattern |
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| US3596663A (en) * | 1969-05-29 | 1971-08-03 | Lorillard Co P | Ventilated smoking article |
| DE4205658A1 (en) * | 1992-02-25 | 1993-08-26 | Reemtsma H F & Ph | VENTILATED FILTER CIGARETTE |
| JP3204549B2 (en) * | 1992-07-29 | 2001-09-04 | 日本たばこ産業株式会社 | cigarette |
| GB2455733A (en) | 2007-12-19 | 2009-06-24 | British American Tobacco Co | Filter for a smoking article |
| GB0811552D0 (en) | 2008-06-24 | 2008-07-30 | British American Tobacco Co | Filter for a smoking article |
| US20100059074A1 (en) * | 2008-09-05 | 2010-03-11 | R. J. Reynolds Tobacco Company | Inspection System for a Smoking Article Having an Object Inserted Therein, and Associated Method |
| GB0922698D0 (en) * | 2009-12-31 | 2010-02-17 | British American Tobacco Co | Filter for a smoking article |
| EP2471390A1 (en) * | 2010-12-30 | 2012-07-04 | Philip Morris Products S.A. | Smoking article having wrapper with indicium |
| GB2490650A (en) * | 2011-04-01 | 2012-11-14 | British American Tobacco Co | Filter for smoking article |
| CN202697700U (en) * | 2012-08-07 | 2013-01-30 | 四川三联卷烟材料有限公司 | Multiple channel cigarette filter rod |
| CN103040112A (en) * | 2012-12-31 | 2013-04-17 | 蚌埠卷烟材料厂 | Filter tip with gaps and patterns |
-
2013
- 2013-08-21 CN CN201380078951.4A patent/CN105473009B/en active Active
- 2013-08-21 KR KR1020167004074A patent/KR101748537B1/en active IP Right Grant
- 2013-08-21 JP JP2015532612A patent/JP6148733B2/en active Active
- 2013-08-21 EP EP13891850.3A patent/EP3037007B1/en active Active
- 2013-08-21 WO PCT/JP2013/072264 patent/WO2015025376A1/en active Application Filing
- 2013-08-21 RU RU2016109812A patent/RU2629095C1/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141145A (en) * | 1995-07-27 | 1997-01-29 | 马重子 | Anti-countfeit colored filter of cigarette and method for coloration therefor |
| CN101581060A (en) * | 2008-05-16 | 2009-11-18 | 印莫格不动产采购有限责任公司 | Cigarette packaging material and cigarettes |
| GB2475856A (en) * | 2009-12-02 | 2011-06-08 | British American Tobacco Co | Flavoured plugwrap |
| EP2462821A1 (en) * | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Smoking article having embossed transparent wrapper |
| CN203058273U (en) * | 2012-12-12 | 2013-07-17 | 湖北中烟工业有限责任公司 | Cigarette printed with fluorescent pattern |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3037007A4 (en) | 2017-05-17 |
| RU2629095C1 (en) | 2017-08-24 |
| JP6148733B2 (en) | 2017-06-14 |
| EP3037007B1 (en) | 2020-09-30 |
| EP3037007A1 (en) | 2016-06-29 |
| KR101748537B1 (en) | 2017-06-16 |
| WO2015025376A1 (en) | 2015-02-26 |
| CN105473009A (en) | 2016-04-06 |
| JPWO2015025376A1 (en) | 2017-03-02 |
| KR20160041936A (en) | 2016-04-18 |
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