A tipping paper capable of improving the comfort of cigarette smoke

Abstract

The application belongs to the technical field of cigarette manufacturing, and particularly relates to a tipping paper capable of improving the comfort of cigarette smoke, which comprises a filter rod end, elastic adjusting ends are arranged at the left and right ends of the filter rod end, and cigarette ends are arranged at the other sides of the elastic adjusting ends on the left and right sides; the elastic adjusting end comprises, from top to bottom, an outer adjusting layer, a water-absorbing and swelling layer and an inner adjusting layer, the outer adjusting layer and the inner adjusting layer are arranged in a corrugated shape, air permeation holes are arranged at the wave crests and wave troughs of the outer adjusting layer and the inner adjusting layer, smooth ends are arranged at the left and right ends of the outer adjusting layer and the inner adjusting layer, ring line mark strips are arranged on the upper sides of the smooth ends on the left and right sides of the outer adjusting layer, and water inlet holes are arranged on the bodies of the ring line mark strips. The application utilizes the elongation of the elastic adjusting end to increase the air permeability of the tipping paper, more external air is used to reduce the content of free nicotine in the cigarette smoke, and the comfort of the cigarette smoke is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cigarette manufacturing technology, in particular to a tipping paper capable of improving the comfort of cigarette smoke. BACKGROUND

[0002] Cigarette smoke refers to the highly concentrated and constantly changing aerosol system produced by the tobacco in the lit cigarette after a complex combustion process. Cigarette smoke includes mainstream smoke drawn from the filter end of the cigarette during puffing, and sidestream smoke released from the burning end during the puffing interval and then diffused into the environment through the cigarette paper. The comfort of cigarette smoke refers to the comfort of mainstream smoke (specifically in terms of taste and irritation).

[0003] Existing research shows that the total nicotine and free nicotine content in cigarettes is highly positively correlated with the strength of the cigarette, the total nicotine content has no significant correlation with sensory comfort, and the free nicotine content has a high negative correlation with sensory comfort. In addition, moisture is an important indicator for evaluating the quality of smoke, and it has a positive impact on oral prickle, convergence, and strength. Therefore, appropriate technical methods can be used to adjust the content of free nicotine and smoke moisture during cigarette development and maintenance, which can effectively improve the sensory comfort of cigarettes.

[0004] In the prior art, in addition to adjusting the composition of tobacco to change the content of free nicotine and smoke moisture, the air intake can also be changed by changing the air permeability of the tipping paper to adjust the content of free nicotine and smoke moisture. An increase in the air permeability of the tipping paper will result in an increase in the air intake of the tipping paper, and at this time, the air entering will mix with the mainstream smoke to produce mixed smoke. The greater the amount of air entering, the lower the content of free nicotine and smoke moisture in the mixed smoke. In the prior art, the air permeability of the tipping paper is set in advance, and after the cigarette is formed, the air permeability of the tipping paper cannot be adjusted, i.e. the smoker cannot adjust the comfort of the mainstream smoke according to his own preferences. Therefore, a tipping paper capable of adjusting the air permeability is needed to properly regulate the content of free nicotine and smoke moisture in the cigarette, so as to effectively improve the sensory comfort of the cigarette. SUMMARY

[0005] The present application aims to provide a tipping paper capable of improving the comfort of cigarette smoke to solve the problem of the air permeability of the existing tipping paper being unable to be adjusted.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a tipping paper capable of improving the comfort of cigarette smoke, comprising a filter rod end, elastic adjustment ends are arranged at the left and right ends of the filter rod end, and cigarette ends are arranged on the other sides of the elastic adjustment ends on both sides;

[0007] The elastic adjusting end comprises from top to bottom an outer adjusting layer, a water-absorbing expansion layer and an inner adjusting layer, the outer adjusting layer and the inner adjusting layer are provided in a corrugated shape, air holes are formed at the wave crests and wave troughs of the outer adjusting layer and the inner adjusting layer, the left and right ends of the outer adjusting layer and the inner adjusting layer are provided with smooth ends, the upper sides of the smooth ends of the left and right sides of the outer adjusting layer are provided with ring mark strips, water inlet holes are formed in the bodies of the ring mark strips, and the water inlet holes penetrate through the smooth ends and extend to the water-absorbing expansion layer.

[0008] The cigarette end and the filter rod end each comprise from top to bottom an outer protective layer, a spacing protective layer and an inner protective layer, and the spacing protective layer in the cigarette end contains lactic acid and water.

[0009] Preferably, the upper side of the outer adjusting layer is provided with a transverse mark strip, the left and right ends of the transverse mark strip extend into the lower sides of the two ring mark strips respectively, and the water inlet holes penetrate through the transverse mark strip.

[0010] Preferably, the number of the water-absorbing expansion layers in a single elastic adjusting end is two, waterproof layers are arranged between the two water-absorbing expansion layers and at the other ends of the two water-absorbing expansion layers, and the outer adjusting layer and the inner adjusting layer are connected with the waterproof layers between the two water-absorbing expansion layers.

[0011] Preferably, the lower side of the inner protective layer is provided with a butt joint layer, and the butt joint layer extends to the lower side of the smooth end of the inner adjusting layer.

[0012] Preferably, the butt joint layer at the lower side of the filter rod end and the butt joint layer at the lower side of the cigarette end are connected with an elastic end, and the elastic end comprises a lower elastic layer connected with the butt joint layer at the lower side of the filter rod end and an upper elastic layer connected with the butt joint layer at the lower side of the cigarette end.

[0013] Preferably, the bodies of the upper elastic layer and the lower elastic layer are each provided with an arc-shaped concave-convex groove, the arc-shaped concave-convex groove on the upper elastic layer corresponds to the arc-shaped concave-convex groove on the lower elastic layer, and when the upper elastic layer and the lower elastic layer are rolled into a circle, the lower elastic layer is inserted into the inner side of the upper elastic layer.

[0014] Preferably, the air holes on the outer adjusting layer and the air holes on the inner adjusting layer correspond to each other, and the air holes at the wave crests and the air holes at the wave troughs on the outer adjusting layer are arranged alternately.

[0015] Preferably, the length of the elastic adjusting end after contraction is 1-1.5 mm, and the length of the elastic adjusting end after expansion is not more than twice the length after contraction.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1) The present application is provided with an elastic adjusting end that can be stretched, the air permeability of the tipping paper is increased by the elongation of the elastic adjusting end, and then more external air is used to reduce the content of free nicotine in cigarette smoke, thereby improving the comfort of cigarette smoke;

[0018] 2) The water-absorbing expansion layer in the elastic adjusting end of the present application expands by using external moisture, and absorbs more moisture at the same time. At this time, more moisture will be brought into the mainstream smoke by the external air passing through the tipping paper, thereby avoiding the phenomenon that the increase of air intake amount leads to the reduction of moisture in cigarette smoke, and further ensuring the comfort of cigarette smoke;

[0019] 3) The tipping paper of the present application is provided with lactic acid and water in the interval protection layer. When air penetrates through the interval protection layer, acidic gas will be brought into the mainstream smoke. At this time, the free nicotine in the mainstream smoke is mixed with the acidic gas, which can improve the comfort of cigarette smoke. In addition, lactic acid organic acid has an important positive effect on sensory comfort, which can further improve the comfort of cigarette smoke;

[0020] 4) The air permeability of the tipping paper is low at the connection with the formed paper, and the air amount entering the tipping paper at the cigarette end is small. At this time, the cooling speed of the mainstream smoke is slow, and the oxygen in the introduced air can oxidize the unburned gas in the mainstream smoke. The sufficient oxidation of the mainstream smoke can reduce the tar content in the cigarette smoke, and the reduction of the tar content in the cigarette smoke can also improve the comfort of the cigarette smoke;

[0021] 5) The elastic adjusting end of the present application can be stretched, and after the elastic adjusting end is elongated, the distance between the filter rod end and the cigarette end can be increased, so that the mainstream smoke can be quickly cooled at this position. After the temperature of the mainstream smoke is reduced, the tar in the cigarette is more easily filtered by the filter rod of the cigarette, and the reduction of the tar content in the cigarette smoke can also improve the comfort of the cigarette smoke. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic diagram of the present application after winding and forming;

[0023] Figure 2 It is a structure schematic diagram of the present application before winding;

[0024] Figure 3 It is a structure schematic diagram of the present application Figure 2 It is an enlarged schematic diagram of the structure of the present application after expansion at C;

[0025] Figure 4 It is an enlarged schematic diagram of the structure of the present application before expansion at C; Figure 2

[0026] Figure 5 ​Partial view structure schematic diagram of A-A direction in the present application Figure 2 Partial view structure schematic diagram of A-A direction in the present application

[0027] Figure 6 Partial view structure schematic diagram of A-A direction in the present application Figure 2 Partial view structure schematic diagram of A-A direction in the present application

[0028] Figure 7 Partial view structure schematic diagram of A-A direction in the present application

[0029] Figure 8 Partial view structure schematic diagram of A-A direction in the present application Figure 7 Partial view structure schematic diagram of A-A direction in the present application

[0030] In the figure: 1 filter rod end, 11 outer protective layer, 12 interval protective layer, 13 inner protective layer, 2 cigarette end, 3 elastic adjusting end, 31 ring line mark strip, 32 outer adjusting layer, 33 water absorption expansion layer, 34 inner adjusting layer, 35 air permeable hole, 36 waterproof layer, 37 water inlet hole, 4 butt joint layer, 5 telescopic end, 51 upper telescopic layer, 52 lower telescopic layer. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] Embodiment:

[0034] Please refer to Figures 1-8The application provides a technical scheme: a tipping paper capable of improving the comfort of cigarette smoke, comprising a filter rod end 1, before the filter rod end 1 is cut, the filter rod end 1 can wrap the plug wrap of two cigarettes, the left and right ends of the filter rod end 1 are provided with elastic adjusting ends 3, the other sides of the two elastic adjusting ends 3 are provided with cigarette ends 2, when the tipping paper is used, the tipping paper is connected with the cigarette paper and the plug wrap in the cigarette, the cigarette end 2 is bonded to the outside of the cigarette paper after being rolled into a circle, the filter rod end 1 is bonded to the outside of the plug wrap after being rolled into a circle, the elastic adjusting end 3 is wrapped on the outside of the cigarette paper and the plug wrap, the elastic adjusting end 3 is not bonded to the cigarette paper and the plug wrap, then the tipping paper is cut from the middle of the filter rod end 1, that is, one piece of tipping paper can be used on two cigarettes.

[0035] The elastic adjusting end 3 comprises, from top to bottom, an outer adjusting layer 32, a water-absorbing and swelling layer 33, and an inner adjusting layer 34. The outer adjusting layer 32 and the inner adjusting layer 34 are both made of water-based paper, and the air permeability of the water-based paper is 50 CU. The air permeability of the water-absorbing and swelling layer 33 is greater than 600 CU. The outer adjusting layer 32 and the inner adjusting layer 34 are both provided in a corrugated shape. The outer adjusting layer 32 and the inner adjusting layer 34 are straightened to be elongated. The main material of the water-absorbing and swelling layer 33 is water-absorbing fiber. The water-absorbing fiber is a double-layer structure fiber composed of modified polyacrylate and polypropylene fiber. The modified polyacrylate in the water-absorbing fiber has water-absorbing effect, and can make the water-absorbing and swelling layer 33 expand laterally. After absorbing water, the water-absorbing and swelling layer 33 will gradually swell and then expand the outer adjusting layer 32 and the inner adjusting layer 34, so as to elongate the outer adjusting layer 32 and the inner adjusting layer 34. Air holes 35 are provided at the peaks and valleys of the outer adjusting layer 32 and the inner adjusting layer 34. When the outer adjusting layer 32 and the inner adjusting layer 34 shrink, the air holes 35 are also compressed, and at this time, the air permeability of the outer adjusting layer 32 and the inner adjusting layer 34 is low. With the elongation of the outer adjusting layer 32 and the inner adjusting layer 34, the air holes 35 will also expand, and at this time, the air permeability of the outer adjusting layer 32 and the inner adjusting layer 34 will also increase. The left and right ends of the outer adjusting layer 32 and the inner adjusting layer 34 are both provided with smooth ends. The upper side of the smooth end of the left side of the outer adjusting layer 32 is provided with a ring line mark 31. The body of the ring line mark 31 is provided with a water inlet hole 37. The water inlet hole 37 penetrates through the smooth end and extends to the water-absorbing and swelling layer 33. The size of the water inlet hole 37 is small. In order to facilitate water adding, the ring line mark 31 is used to display the water adding position, so as to facilitate the smoker to add water to the water-absorbing and swelling layer 33 through the water inlet hole 37. The initial water-absorbing and swelling layer 33 also contains water. The water content in the water-absorbing and swelling layer 33 is about 1.5 times of the water content in the tobacco. For example, the water content in the common cigarette tobacco is generally 11% to 13%. When the water content in the tobacco is 12%, the water content in the water-absorbing and swelling layer 33 of the tipping paper before use is 18%. When the external air enters the cigarette along the elastic adjusting end 3 and mixes with the mainstream smoke, the external air will carry the water in the water-absorbing and swelling layer 33 into the mainstream smoke, thereby avoiding the reduction of the water content in the mainstream smoke. With the water-absorbing and swelling of the water-absorbing and swelling layer 33, the air intake of the elastic adjusting end 3 increases, and at this time, the water content in the water-absorbing and swelling layer 33 also increases. When the external air mixes with the mainstream smoke, more water can be carried, thereby avoiding the reduction of the water content in the mixed smoke.

[0036] The cigarette end 2 and the filter end 1 from top to bottom each include an outer protective layer 11, a spacer protective layer 12 and an inner protective layer 13; the outer protective layer 11 and the outer adjusting layer 32 are an integral whole, and the inner protective layer 13 and the inner adjusting layer 34 are an integral whole, which can be processed by means of a belt creping device to make the tipping paper slightly wrinkled, so as to process the outer adjusting layer 32 or the inner adjusting layer 34 on the tipping paper. The spacer protective layer 12 is made of copper plate paper, and the spacer protective layer 12 in the cigarette end 2 contains lactic acid and water, the moisture content in the spacer protective layer 12 is 11% to 13%, which is the same as that in the tobacco shreds, and the lactic acid content in the spacer protective layer 12 is about 1 to 2 mg. Since most of the organic acids such as formic acid, lactic acid and tetradecanoic acid have important positive effects on sensory comfort, when the external air enters along the cigarette end 2 and mixes with the mainstream smoke, the external air with lactic acid can neutralize the free nicotine in the mainstream smoke, thereby further reducing the content of free nicotine in the mainstream smoke, so as to improve the comfort of the cigarette smoke. In addition, the spacer protective layer 12 containing lactic acid is located on one side of the cigarette forming paper, at this time, the air intake of the cigarette end 2 is low, the temperature of the mainstream smoke decreases slowly, so that the unburned gas in the mainstream smoke can receive oxygen and be oxidized, and then the smoke receives a large amount of external air in the elastic adjusting end 3 and can be rapidly cooled, thereby avoiding the adsorption of tar by the cigarette filter.

[0037] The upper side of the outer adjusting layer 32 is provided with a transverse mark strip 38, the left and right ends of the transverse mark strip 38 respectively extend into the lower side of the two side ring mark strips 31, and the water inlet hole 37 penetrates the transverse mark strip 38. The water inlet hole 37 is just at the junction of the transverse mark strip 38 and the ring mark strip 31, thereby further indicating the position of the water inlet hole 37. Figure 3 and Figure 4 In order to facilitate observation, the water inlet hole 37 and the air permeable hole 35 are enlarged

[0038] The number of water-absorbing expansion layers 33 in the single elastic adjusting end 3 is two, and the smoker can make the elastic adjusting end 3 extend to different lengths according to the needs, so that the elastic adjusting end 3 has a larger adjusting range. The waterproof layer 36 is arranged between the two water-absorbing expansion layers 33 and the other end of the two water-absorbing expansion layers 33, and the waterproof layer 36 is made of foil paper and is used for isolating water transmission. The waterproof layer 36 between the two water-absorbing expansion layers 33 is used to avoid water from flowing between the two water-absorbing expansion layers 33, so that the two water-absorbing expansion layers 33 can be adjusted separately. The waterproof layer 36 between the water-absorbing expansion layer 33 and the spacing protection layer 12 is used to avoid the water in the spacing protection layer 12 from being absorbed by the water-absorbing expansion layer 33. The waterproof layer 36 is connected between the outer adjusting layer 32 and the inner adjusting layer 34 and the two water-absorbing expansion layers 33. By bonding the outer adjusting layer 32, the inner adjusting layer 34 and the waterproof layer 36, the stability of the outer adjusting layer 32 and the inner adjusting layer 34 can be improved.

[0039] The lower side of the inner protection layer 13 is provided with a butt joint layer 4, the butt joint layer 4 extends to the lower side of the smooth end of the inner adjusting layer 34, and the butt joint layer 4 is used to bond the cigarette paper and the forming paper of the cigarette. The inner adjusting layer 34 is protected by the butt joint layer 4 to avoid being flattened by the cigarette, so as to ensure that the air permeability of the inner adjusting layer 34 can change normally during stretching and contraction.

[0040] Under normal circumstances, the inner adjusting layer 34, the outer adjusting layer 32 and the water-absorbing expansion layer 33 can support the cigarette paper and the forming paper to avoid bending between the tobacco column and the filter stick of the cigarette. After the water-absorbing expansion layer 33 absorbs water, the supporting force of the inner adjusting layer 34, the outer adjusting layer 32 and the water-absorbing expansion layer 33 becomes weak, and at this time, the inner adjusting layer 34, the outer adjusting layer 32 and the water-absorbing expansion layer 33 are easy to bend, thereby causing bending between the tobacco column and the filter stick of the cigarette. The stretching end 5 is arranged between the butt joint layer 4 at the lower side of the filter stick end 1 and the butt joint layer 4 at the lower side of the cigarette end 2, and the stretching end 5 includes the lower stretching layer 52 connected with the butt joint layer 4 at the lower side of the filter stick end 1 and the upper stretching layer 51 connected with the butt joint layer 4 at the lower side of the cigarette end 2. When the length of the elastic adjusting end 3 changes, the stretching end 5 supports the tobacco column and the filter stick, thereby avoiding bending between the tobacco column and the filter stick. The main material of the upper stretching layer 51 and the lower stretching layer 52 is acetate fiber.

[0041] In the same way, the method of out-of-machine creping is adopted to press the arc-shaped concave-convex grooves on the bodies of the upper and lower stretchable layers 51 and 52. The convex part of the arc-shaped concave-convex grooves on the lower stretchable layer 52 is clamped in the concave part of the arc-shaped concave-convex grooves on the upper stretchable layer 51. In this way, the upper and lower stretchable layers 51 and 52 are processed into corrugated shape, which can enhance the bending resistance of the stretchable end 5. When the upper and lower stretchable layers 51 and 52 are rolled into a circular shape, the lower stretchable layer 52 is inserted into the inner side of the upper stretchable layer 51. When the elastic adjusting end 3 is stretched, the lower and upper stretchable layers 52 and 51 are away from each other.

[0042] The air permeation holes on the peaks of the outer adjusting layer 32 correspond to the air permeation holes on the valleys of the inner adjusting layer 34, and the air permeation holes on the valleys of the outer adjusting layer 32 correspond to the air permeation holes on the peaks of the inner adjusting layer 34. The air permeation holes 35 on the peaks of the outer adjusting layer 32 are staggered with the air permeation holes 35 on the valleys, which can avoid the small spacing between the adjacent air permeation holes 35, so that the outer adjusting layer 32 and the inner adjusting layer 34 can be normally contracted.

[0043] At present, the length of the common cigarette on the domestic cigarette market is 70mm-100mm. When the length of the cigarette is below 85mm, the length of the elastic adjusting end 3 after contraction is 1.5mm; when the length of the cigarette is above 85mm, the length of the elastic adjusting end 3 after contraction is 1mm; when the length of the cigarette is longer, the length of the elastic adjusting end 3 after contraction is reduced to reduce the support force required by the cigarette column, so as to avoid the bending between the cigarette column and the filter rod. In order to further ensure the flatness of the cigarette, the length of the elastic adjusting end 3 after expansion cannot exceed twice the length after contraction.

[0044] In the invented tipping paper, the thicknesses of the outer protective layer 11 and the inner protective layer 13 are the same, the total thickness of the outer protective layer 11, the inner protective layer 13 and the interval protective layer 12 is 0.03mm-0.04mm, and the thickness of the abutting layer 4 is about 0.04mm. After being punched, the air permeability of the outer adjusting layer 32 and the inner adjusting layer 34 in the straightened condition can reach 600CU, and the air permeability of the outer adjusting layer 32 and the inner adjusting layer 34 in the completely contracted condition is 150CU. The diameter of the air permeation hole 35 is about 0.04mm, and the diameter of the water inlet hole is about 0.1mm.

[0045] Working principle: in normal smoking, the mainstream cigarette smoke will be slightly irritating, when the smoking personnel feel that the cigarette smoke is too strong, can use the finger in one side ring line mark strip 31 on the water inlet hole 37 place smears trace of water, water along the water inlet hole 37 and water absorption expansion layer 33 contact, water absorption expansion layer 33 absorbs water and expands, at this time, the transverse extension of water absorption expansion layer 33 will push the inner adjusting layer 34 and the outer adjusting layer 33 to unfold, the unfolding of the inner adjusting layer 34 and the outer adjusting layer 33 will make the air permeable hole 35 unfold, thereby increasing the air permeability of the inner adjusting layer 34 and the outer adjusting layer 33, at this time, the amount of air entering the cigarette will increase, thereby reducing the content of free nicotine in cigarette smoke, to improve the sensory comfort of smoking personnel;

[0046] When one side water absorption expansion layer 33 is completely unfolded, the smoking personnel still feel that the cigarette smoke is irritating, can use the finger in the other side ring line mark strip 31 on the water inlet hole 37 place smears trace of water, thereby continuing to increase the air permeability of the inner adjusting layer 34 and the outer adjusting layer 33, when the elastic adjusting end is completely unfolded, the cigarette smoke is weak, and people will not feel strong irritation.

[0047] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims involved.

[0048] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tipping paper that can improve the comfort of cigarette smoke, comprising a filter rod end (1), characterized in that: The filter rod end (1) is provided with elastic adjustment ends (3) on both the left and right ends, and cigarette ends (2) are provided on the other side of the elastic adjustment ends (3) on both sides. The elastic adjustment end (3) includes, from top to bottom, an outer adjustment layer (32), a water-absorbing expansion layer (33), and an inner adjustment layer (34). The outer adjustment layer (32) and the inner adjustment layer (34) are both corrugated. Ventilation holes (35) are provided at the crests and troughs of the outer adjustment layer (32) and the inner adjustment layer (34). Smooth ends are provided at the left and right ends of the outer adjustment layer (32) and the inner adjustment layer (34). A ring mark strip (31) is provided on the upper side of the smooth ends on the left and right sides of the outer adjustment layer (32). A water inlet hole (37) is provided on the body of the ring mark strip (31). The water inlet hole (37) penetrates the smooth end and extends to the water-absorbing expansion layer (33). The cigarette end (2) and the filter rod end (1) each include an outer protective layer (11), a spacer protective layer (12) and an inner protective layer (13) from top to bottom; the spacer protective layer (12) in the cigarette end (2) contains lactic acid and water.

2. The tipping paper for improving cigarette smoke comfort according to claim 1, characterized in that: A horizontal marker strip (38) is provided on the upper side of the outer adjustment layer (32). The left and right ends of the horizontal marker strip (38) extend into the lower side of the two side ring marker strips (31), and the water inlet (37) passes through the horizontal marker strip (38).

3. The tipping paper for improving cigarette smoke comfort according to claim 1, characterized in that: The number of water-absorbing expansion layers (33) in a single elastic adjustment end (3) is two. A waterproof layer (36) is provided between the two water-absorbing expansion layers (33) and at the other end of the two water-absorbing expansion layers (33). The outer adjustment layer (32) and the inner adjustment layer (34) are both connected to the waterproof layer (36) between the two water-absorbing expansion layers (33).

4. The tipping paper for improving cigarette smoke comfort according to claim 1, characterized in that: A mating layer (4) is provided on the lower side of the inner protective layer (13), and the mating layer (4) extends to the lower side of the smooth end of the inner adjustment layer (34).

5. A tipping paper for improving cigarette smoke comfort according to claim 4, characterized in that: A telescopic end (5) is connected between the docking layer (4) on the lower side of the filter rod end (1) and the docking layer (4) on the lower side of the cigarette end (2). The telescopic end (5) includes a lower telescopic layer (52) connected to the docking layer (4) on the lower side of the filter rod end (1) and an upper telescopic layer (51) connected to the docking layer (4) on the lower side of the cigarette end (2).

6. The tipping paper for improving cigarette smoke comfort according to claim 5, characterized in that: Both the upper stretchable layer (51) and the lower stretchable layer (52) are provided with arc-shaped grooves. The arc-shaped grooves on the upper stretchable layer (51) correspond to the arc-shaped grooves on the lower stretchable layer (52). When the upper stretchable layer (51) and the lower stretchable layer (52) are rolled into a circle, the lower stretchable layer (52) is inserted into the inner side of the upper stretchable layer (51).

7. The tipping paper for improving cigarette smoke comfort according to claim 1, characterized in that: The vent holes (35) on the outer adjustment layer (32) and the vent holes (35) on the inner adjustment layer (34) correspond to each other, and the vent holes (35) at the crests and the vent holes (35) at the troughs on the outer adjustment layer (32) are arranged alternately.

8. The tipping paper for improving cigarette smoke comfort according to claim 1, characterized in that: The length of the elastic adjustment end (3) after contraction is 1 to 1.5 mm, and the length of the elastic adjustment end (3) after expansion does not exceed twice the length when contracted.

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