JP3235953B2 - Cigarette with water dispersible filter and adhesive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cigarette with a water-dispersible filter and an adhesive for adhering a wrapper for a filter rod of the cigarette to a tip paper when a cigarette with a filter is produced.

[0002]

2. Description of the Related Art With the growing interest in global environmental problems, governments, businesses, and consumers have been working to solve various problems. In particular, in terms of environmental pollution, throwing out cigarette butts in public places has become a major social problem. To reduce environmental pollution caused by cigarette butts, it is essential to improve the manners of consumers, but enlightenment activities alone are not expected to have a sufficient improvement effect. Therefore, even if cigarette butts are thrown away, there is a need for a filter-equipped cigarette that can quickly disperse and dissipate and minimize the impact on the environment.

[0003] In recent years, various proposals have been made for such demands. For example, as for a filter, a filter rod made of a water-soluble material (Japanese Unexamined Patent Application Publication No.
No. 38, JP-A-6-327454), a filter rod made of a biodegradable material (utility model registration No. 3).
No. 003418 Registered Utility Model Gazette, Japanese Utility Model Laid-Open No. 6-644
No. 93, JP-A-5-74299) and a filter rod made of a water-dispersible (water-disintegrating) material (JP-A-7-166) has been proposed.

[0004] Cellulose acetate fibers and cellulosic fibers such as wood pulp, which are mainly used at present, have a biodegradability as a filter medium constituting a filter rod. For example, JP-A-6-327454 discloses the method. And the like, although the rate of degradation is lower than that of the water-soluble or biodegradable polymer disclosed in J. et al.

[0005]

However, the dispersion and dissipation of cigarette butts is difficult to achieve only by improving the disassembly or dispersibility of the filter rod, and the cigarette itself, that is, the wrapper, in addition to the filter rod, It is important that chip paper, cigarette wrapping paper, etc. be quickly dispersed and dissipated as a whole.

Conventionally, materials used for cigarettes include:
Physical properties suitable for mass production and high quality product characteristics are desired. Among these materials, paper used for wrappers and chip paper that wrap filter rods includes paper strength (tensile strength, folding strength, etc.) including mechanical strength corresponding to high-speed cigarette manufacturing technology. , Water resistance, etc.). The cigarette butts using such a wrapper or chip paper have a filter tip portion that remains intact for a long time even if the filter rod itself is water-soluble, biodegradable or water-dispersible.

The present invention has been made in view of the above points, and has been made of a cigarette with a water-dispersible filter in which a cigarette butt itself is rapidly dispersed and dissipated due to rainfall, and a wrapper and a tip paper for a filter rod of a cigarette. Provide an adhesive for bonding.

[0008]

According to the present invention, there is provided a filter rod, a wrapper made of a water-dispersible substrate disposed on a peripheral surface of the filter rod, and an adhesive on the peripheral surface of the wrapper. A filter chip including a tip paper made of a water-dispersible base material arranged, and
A cigarette with a water-dispersible filter including a cigarette rod connected to one end of the filter tip, wherein the adhesive is a water-insoluble powder or a hardly water-soluble powder,
And a water-dispersible filter-containing cigarette comprising a water-soluble polymer as a base material for an adhesive. Further, the present invention, when producing a cigarette with a filter, an adhesive for bonding a wrapper and a tip paper for a filter rod of the cigarette,
Provided is an adhesive characterized by containing a water-soluble polymer as a base material of the adhesive, and containing a water-insoluble powder or a poorly water-soluble powder.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The present inventors left the butts of a conventional cigarette with a filter outdoors and observed the deterioration over time. As a result, cigarette rods in the butts disperse and dissipate early or shrink significantly. On the other hand, the filter tip kept its original shape for a long period of time, and after one year from the beginning of the standing, it gradually dispersed from the tip paper and the part of the wrapper on the side opposite to the ground contacting the filter rod, exposing the filter rod. . Also, when filter rods made of cellulosic fibers using various water-soluble adhesives were combined with commonly used wrappers and chip papers, no significant difference was observed in the dispersion and dissipation of butts.

Therefore, the present inventors presume that the tip paper and the wrapper hinder the dispersion and dissipation of the filter chips, and have repeatedly studied various materials for the tip paper and the wrapper to complete the present invention. Was.

The wrapper and chip paper used in the cigarette with a water-dispersible filter of the present invention use a water-dispersible substrate. Here, the water-dispersible base material refers to a base material such as paper or polymer that can be dissolved or dispersed in water and dissipated. Specifically, Japanese Patent Publication No. 40-968, Japanese Patent Publication No. 43-27605, Japanese Patent Publication No. 48-27605
JP, JP-B-50-3804, JP-A-2-15
4095, JP-A-3-8897, JP-A-3-8897
A water-soluble paper or a water-disintegrated paper manufactured according to a known technique having a special dispersibility, such as disclosed in Japanese Patent Application Laid-Open No. 167400/1994 and Japanese Patent Application Laid-Open No. 6-192991. In general manufacturing methods such as treatment with an additive or a coating liquid, those manufactured under conditions in consideration of dispersibility are used.

Among the water-dispersible base materials containing these water-soluble papers or water-disintegrated papers, paper making materials having water dispersibility provided by a known technique of weakening beating to reduce mutual contact between fibers and bonding between fibers. Water-soluble paper or hydrolyzed paper obtained by mixing fibrous carboxymethylcellulose salt or fibrous carboxyethylcellulose salt with fiber (hereinafter referred to as water-dispersible fiber), or water-dispersible fiber and fibrous carboxymethylcellulose or fibrous carboxyethylcellulose The water-dispersible base material obtained by blending is particularly preferable because it can easily have a tensile strength corresponding to a high-speed filter winder and a cigarette winder. Here, the water-dispersible fiber is a fiber material essentially having a dispersing property in water, and is generally used for papermaking. For example, it can be appropriately selected from wood pulp fibers such as softwood kraft pulp, hardwood kraft pulp, and dissolved pulp, and non-wood plant fibers such as kenaf pulp, flax pulp, and linter.

However, the above-mentioned water-dispersible base material, particularly paper provided with water solubility or water dispersibility, has a sheet structure in which beating of the papermaking raw material is suppressed during the production thereof and the bonding between fibers is small. Because of the strength of the paper is weak,
Inevitably the air permeability is extremely high. Filter cigarettes using such a water-dispersible base material for wrappers and chip papers reduce the amount of tar and nicotine in smoke by filter ventilation, inevitably reduce the flavor and the mechanical strength. , The effect of lowering the productivity is caused.

Conventionally, methods for reducing the air permeability of water-soluble paper and water-disintegrated paper include, for example, a coating treatment for applying a resin having a film forming property to the paper surface, and a method of laminating a water-soluble resin sheet or film. Is performed to reduce the paper permeability. However, any of these methods causes an increase in manufacturing cost due to an increase in material cost and the number of steps.

Therefore, the present inventors have proposed to use a water-insoluble powder or a hardly water-soluble powder and an adhesive containing a water-soluble polymer as the adhesive used for bonding the wrapper and the chip paper, thereby making the wrapper and the tip paper. Adhesion of the paper and water-insoluble powder or poorly water-soluble powder fill the air holes of the water-dispersible base material that constitutes the wrapper and chip paper, so that the air permeability when the wrapper, adhesive and chip paper are combined Can be reduced.

The water-soluble polymer used as the base material of the adhesive is preferably one that does not impair the water dispersibility of the water-dispersible base material. Specifically, generally used synthetic polymers (eg, polyvinyl alcohol, polyvinyl pyrrolidone, etc.), cellulose derivatives (eg, carboxymethyl cellulose salts, carboxyethyl cellulose salts, etc.), starches (eg, potato starch, starch derivatives) Etc.), plant constituent polysaccharides (eg, alginate, mannan, etc.) or plant mucilage (eg, gum arabic, trangant gum, etc.) and a mixture of at least two of them, for example, mechanical suitability and adhesive strength. Can be appropriately selected and used in consideration of the above.

The water-insoluble powder or the poorly water-soluble powder may be either an inorganic powder or an organic powder. Specifically, examples of the inorganic powder include clay minerals such as kaolin and clay, metal oxides such as alnium oxide and titanium dioxide, carbonates (eg, calcium carbonate, barium carbonate, magnesium carbonate) and sulfates. Inorganic salts such as (for example, barium sulfate and calcium sulfate) and organic powders include thermosetting resins such as urea resin, or
One or more organic polymer powders of a thermoplastic resin such as an acrylic resin can be used in combination. However, the present invention is not limited to these specific examples, and any powder can be used as long as it is insoluble or hardly soluble in water-soluble polymers like water, and is chemically stable.

The average particle diameter of the water-insoluble powder or the poorly water-soluble powder is, for example, 0.1 to 10 μm, and 0.1 to 5 μm.
It is more desirable that the thickness be adjusted to μm. The mixing ratio of the water-insoluble powder or the water-insoluble powder and the water-soluble polymer is, for example,
0.5 parts by weight or more of powder to 1 part by weight of water-soluble polymer 1
It is 0 parts by weight or less, and can be determined in consideration of the air permeability of the water-dispersible base material used and the adhesiveness of the wrapper and chip paper. In addition, it was found that the adhesive containing the water-insoluble powder or the poorly water-soluble powder and the water-soluble polymer has improved releasability of the chip paper with water as compared with the adhesive composed of the water-soluble polymer alone.

As described above, by adding a water-insoluble powder or a sparingly water-soluble powder to the adhesive, the air permeability when the wrapper, the adhesive and the chip paper are combined can be reduced. The present inventors investigated the amounts of tar and nicotine in smoke by changing the air permeability when the wrapper, adhesive and chip paper were combined. As a result, when the air permeability of the combination of the wrapper, the adhesive and the chip paper is within the range of 1 to 100 Coresta, it is almost the same as the case where the conventional air permeable wrapper and the chip paper are used. It was found that the amounts of tar and nicotine in the smoke were obtained stably.

In order to control the air permeability of the cigarette with a filter of the present invention when the wrapper, the adhesive and the tip paper are combined, air ventilation holes are usually applied to the tip paper by laser or mechanical means. It is also possible to perform so-called filter ventilation (filter ventilation).

Examples of the water-dispersible base material include JP-B-49-3508.
No. 3, as disclosed in paper No. 3, acid-soluble cellulose derivatives such as acid-soluble fibrous carboxymethylcellulose and fibrous carboxyethylcellulose, which are hardly soluble in water, are then coated with an alkali or alkali metal salt and swollen with water. Paper which has been imparted with water dispersibility by being converted into a salt-type cellulose derivative such as a fibrous carboxymethylcellulose salt or a fibrous carboxyethylcellulose salt which is easily gelled can also be used. In this case, instead of applying the alkali compound, using a substrate obtained by mixing the water-dispersible fiber and the acid-type cellulose derivative for the wrapper and the tip paper, adding the alkali compound to the tip paper adhesive, When the cigarette with the filter is wound up, the acid-type cellulose derivative and the alkali compound are allowed to react with each other to impart water dispersibility to the substrate. In this case, both the wrapper and the tip paper can be simultaneously provided with water dispersibility in the same step, and further processed immediately before use. There is an advantage that adhesion (consolidation) between paper layers due to moisture absorption can be prevented. Here, examples of the alkali compound include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal carbonates such as sodium carbonate and potassium carbonate, and alkali hydrogen carbonates such as sodium hydrogen carbonate. Species or a mixture of two or more can be used. However, both must be water-soluble. On the other hand, the strength of the wrapper and chip paper was examined using a device generally used for cigarette production.
It was found that there was no problem if the tensile strength in the longitudinal direction (longitudinal direction of the filter chip) of the wrapper and the tip paper by the measurement method described in SP8113 was 1 kg or more.

The filter rod used in the cigarette with a filter of the present invention is not particularly limited, but is preferably made of a material excellent in water dispersibility or biodegradability. More specifically, filter rods are made of cellulosic fibers (cellulose acetate, wood pulp,
Hemp pulp or the like and having improved water dispersibility in accordance with known techniques are useful. Cellulose acetate fibers most frequently used as filter rods generally have fiber bundles converged and fused and fixed between fibers with a plasticizer. However, this filter rod is disadvantageous in terms of dispersibility due to rainfall and the like because the fibers are fused between fibers. Therefore, when the cellulose acetate fiber is used as the filter rod, the water dispersibility can be increased by converging the fiber as it is without adding a plasticizer or by bonding the fibers with a water-soluble adhesive at around normal temperature. preferable. As the water-soluble adhesive, for example, JP-A-6-3
For example, a polyvinyl alcohol-based resin described in Japanese Patent No. 19512 can be used. Further, a nonwoven fabric manufactured from cellulosic fibers using a water-soluble adhesive may be used.

Also, paper or other non-woven fabric made of vegetable fibers can be used, and those having improved dispersibility according to known techniques are preferable, and can be appropriately selected in consideration of flavor and machine suitability.

If necessary, printing can be performed on the peripheral surface of the chip paper. In this case, when a normal gravure printing or offset ink is used, the formed film is water-resistant, and the water dispersibility of the printed portion is significantly impaired. Therefore, a water-soluble ink containing a water-soluble resin is useful for printing. This water-soluble ink is different from the water-based ink commonly used in the printing industry,
The vehicle to be compounded is a water-soluble resin, and a film formed after printing dissolves in water. This water-soluble ink is prepared from various materials described below in consideration of the finish of printing and water dispersibility.

First, as a water-soluble resin used as a vehicle, for example, starch, dextrin, polyvinyl alcohol, hydroxyethylcellulose salt, carboxymethylcellulose salt and the like, or a mixture of at least two of them can be used. When only such a water-soluble resin is used as a vehicle, printing quality is likely to be reduced, problems such as mottling are likely to occur, and practicality may be poor. In this case, mineral oil, vegetable oils such as linseed oil, synthetic drying oils such as dehydrated castor oil, natural resins such as rosin, and synthetic resins such as denatured alkyd resins, which are used as vehicles in general printing inks ,
The problem can be solved by adding a small amount of a cellulose derivative such as nitrocellulose.

The main solvent of the water-soluble ink is water, but for the purpose of improving the drying properties of the ink film, the dispersibility of the pigment, the fluidity of the ink, etc., alcohols and glycols which are water-soluble and have an appropriate boiling point are used. And an organic solvent such as glycol ketone. The pigments may be those used in general printing inks, and a surfactant or an antifoaming agent such as silicone oil may be added as necessary.

In order to bond the chip paper on the peripheral surface of the wrapper, the chip paper may be distributed over substantially the entire surface of the chip paper. Further, for example, the adhesive can be distributed only to the overlapping portion of the both side edges of the chip paper, the joint portion with the cigarette rod, and the region near the mouth side. Needless to say, the adhesive may be applied to both or any one of the outer surface of the wrapper and the inner surface of the chip paper.

When the non-distribution region of the adhesive is provided inside the chip paper as described above, the air permeability when the wrapper, the adhesive and the chip paper are combined is controlled by changing the area of the non-distribution region. can do. In this case, it is possible to change the degree of air ventilation to the filter without newly providing an air ventilation hole by laser, mechanical means, or the like. Conventionally, when air ventilation holes are provided by laser, mechanical means, etc., consumers can clearly recognize the evidence of the opening, and decrease the product quality of cigarettes that deteriorates the appearance of wrappers and chip paper Can be However, by providing a non-distribution area of the adhesive inside the chip paper, air ventilation of the filter can be performed while maintaining the commercial quality of the cigarette. Such effects can be obtained similarly when using a highly permeable paper having ordinary paper quality for the wrapper and chip paper, in addition to the cigarette with a filter using the water-dispersible base material of the present invention. Is clear.

[0029]

The cigarette with a water-dispersible filter of the present invention is
The adhesive for bonding the wrapper and chip paper made of the water-dispersible base material contains a water-insoluble powder or a poorly water-soluble powder and a water-soluble polymer. As a result, the wrapper and the chip paper are quickly dispersed and dissipated by water because the base material is water-dispersible. Further, since the air holes of the wrapper and the chip paper are filled with the water-insoluble powder or the hardly water-soluble powder, the air permeability when the wrapper, the adhesive and the chip paper are combined is reduced.

[0030]

Embodiments of the present invention will be described below in detail. Comparative Example A mixture of wood pulp and fibrous carboxymethylcellulose prepared in consideration of water dispersibility, and
Water-dispersed papers A to D having the basis weight, thickness, tensile strength, air permeability, and water dispersibility as shown in Table 1 were prepared. Further, an aqueous dispersion paper E prepared by mixing fibrous carboxymethylcellulose in place of the fibrous carboxymethylcellulose salt and having the basis weight, thickness, tensile strength, air permeability and water dispersibility shown in Table 1 is prepared. did. These water-dispersed papers were obtained from Mishima Paper Co., Ltd. Further, a chip paper and a wrapper conventionally used as a control were prepared. Here, the air permeability of the water-dispersed papers A to E and the control product was determined by Coresta Recommended Method No. 3 (CORESTA RECOMMENDED
According to the method specified in METHOD No. 3), the measurement was performed using a tobacco air permeability measurement device.

The water dispersion of the paper was determined as follows. First, into a beaker containing 200 ml of water, a sample whose known weight was cut into a square of 2.5 cm was put, and 600 r. p. Stir for 20 minutes at m. After stirring, the mixture is immediately poured into a 10-mesh sieve, the residue on the sieve is dried, and the weight is measured. Thereafter, the water dispersion ratio is calculated using the following equation (1).

[0032]

(Equation 1)

The cigarettes with filters Nos. 1 to 5 were prepared by using the water-dispersed papers A to E and the control products in the combinations shown in Table 2 as wrappers and chip papers. The filter rods used for these samples were cellulose acetate tow (3Y-36000) as a filter medium.
And rolled up with a wrapper without adding a plasticizer. An aqueous solution of polyvinyl alcohol (dry matter concentration: 6% by weight) was used as an adhesive for the wrapper. This filter rod was cut into a length of 25 mm, and connected to one end of a cigarette rod common to all samples with tip paper. Emulsion type vinyl acetate resin (dry matter concentration 40% by weight) as an adhesive for this chip paper
Was used. The adhesive was applied over the entire inner surface of the tipping paper. The specifications of the cigarette with a filter thus obtained are as follows.

Length: cigarette rod 60 mm,
Filter tip 25mm, total length 85mm circumference; 25mm Wrapper and tip paper can be wound up by 5,000 cigarette winders per minute, and 1
This was done using a filter winder with 400 m rolls per minute.

With respect to the filter cigarettes of Sample Nos. 1 to 5, the air permeability when the wrapper and the chip paper were overlapped and bonded with an adhesive, the dispersibility of the filter cigarette, the amount of tar and nicotine in smoke and The number of smokings was examined. Table 2 also shows these results.

[0036]

[Table 1]

[0037]

[Table 2]

Here, the air permeability when the wrapper and the chip paper are overlapped and adhered with an adhesive is determined by separating the wrapper and the chip paper from the prepared cigarette with a filter, and using the method of Coresta Recommended Method No. According to the method specified in 3, the measurement was performed using a tobacco air permeability measurement device.

The dispersibility of the cigarette with a filter was measured using a weather resistance tester: Xenon arc lamp weather meter (manufactured by Suga Test Instruments Co., Ltd.) according to ISO4892-198.
In accordance with Test Method 1, a basic cycle consisting of a combination of water spraying for 12 minutes and light irradiation at 40 ° C. and 60% RH for 60 minutes was repeated, and the degree of dispersion was visually observed over time.

The amounts of tar and nicotine in the smoke of the cigarette with a filter were measured by smoking under standard smoking conditions according to the TIOJ (Japan Tobacco Association) method. As shown in Table 2, the cigarettes with filters of Sample Nos. 1 to 4 are superior in dispersibility compared to the cigarettes with filters of Sample No. 5 using the control product having a low water dispersibility by using the water dispersion paper. I was However, in the case of the filter cigarettes of Sample Nos. 2 to 4 in which the air permeability exceeds 100 Coresta when the wrapper and the chip paper are superimposed and bonded with an adhesive, the air flowing from the filter chip is high due to the high air permeability of the paper. Dilutes the smoke,
It was confirmed that the amount of tar and nicotine in the smoke was significantly reduced as compared with the case where the control product of Sample No. 5 was used.

Test Example 1 Titanium dioxide (average particle diameter 0.35 μm) was used in place of the emulsion-type vinyl acetate resin (dry matter concentration 40% by weight) used as an adhesive for chip paper in the comparative example.
m) 15 parts by weight, kaolin (average particle size 0.90 μm)
85 parts by weight and 25 parts by weight of an emulsion type vinyl acetate resin (dry matter concentration: 40% by weight)
% And the amount of the adhesive attached [dry matter weight 6 or 8 g] as shown in Table 3 using the adhesive composition adjusted to
/ M ² (dry matter weight)], and cigarettes with filters of sample Nos. 11 to 17 were produced in the same procedure as in the comparative example. About these samples, the air permeability when the wrapper and the tip paper were overlapped and bonded with an adhesive was measured, the dispersibility of the cigarette with the filter was observed, the amount of tar and nicotine in the smoke and the number of times of smoking were measured. . The results are shown in Table 3.

[0042]

[Table 3]

As is clear from Table 3, the samples Nos. 11 to 11 using the adhesive containing titanium dioxide and kaolin were used.
It was confirmed that the air permeability of each of the 16 cigarettes with a filter was lower than that of the comparative example. In particular, when the air permeability when the wrapper and the tip paper are overlapped and bonded with an adhesive is 100 Coresta or less (samples 11 to 14, 15), the amounts of tar and nicotine in the smoke are almost the same as those of the control product. It was maintained at the same level. In addition, it was found that the air permeability decreased as the amount of the adhesive applied increased.

As for the dispersibility, all of the samples 11 to 16 of this example were slightly improved as compared with those of the comparative example, but were considered to be about the same. Therefore, it was confirmed that the dispersibility did not deteriorate even when an adhesive containing titanium dioxide and kaolin was used. Note that a cigarette with a filter using an adhesive containing titanium oxide and kaolin can be manufactured in the same manner as in the comparative example,
There were no particular problems with the production equipment or production operations.

Test Example 2 The test example was the same as in Test Example 1, except that the solid component concentration was adjusted to 43% using polyvinyl alcohol resin instead of the emulsion type vinyl acetate resin among the constituent components of the adhesive for chip paper used in Test Example 1. In the same manner as in Example 1, cigarettes with filters of Sample Nos. 21 to 24 shown in Table 4 were produced.
About these samples, the air permeability when the wrapper and the tip paper were overlapped and bonded with an adhesive was measured, the dispersibility of the cigarette with the filter was observed, the amount of tar and nicotine in the smoke and the number of times of smoking were measured. .
The results are also shown in Table 4.

[0046]

[Table 4]

As shown in Table 4, the cigarette with a filter using a polyvinyl alcohol resin was obtained by laminating a wrapper and a chip paper and using an adhesive as compared with the case of using the emulsion type vinyl acetate resin of Test Example 1. Although the air permeability when bonded with was almost the same,
Dispersibility was promoted by about 1 to 2 cycles. From these results, it was confirmed that the use of an adhesive using a water-soluble polymer such as a polyvinyl alcohol resin improved the dispersibility of a cigarette with a filter.

Test Example 3 Water-dispersed paper A containing fibrous carboxymethylcellulose salt and water-dispersed paper E containing fibrous carboxymethylcellulose were used for wrappers and chip paper, and titanium dioxide was used as an adhesive for chip paper. 30 parts by weight of (average particle diameter 0.35 μm), 60 parts by weight of kaolin (average particle diameter of 0.90 μm), 10 parts by weight of calcium carbonate (average particle diameter of 2.0 μm), and 25 parts by weight of sodium carboxymethylcellulose powder, Solids concentration 40
%, And the adhesive composition to which 8 parts by weight of sodium carbonate was further added and the adhesive composition to which no sodium carbonate was added were used.
The cigarettes with filters of Sample Nos. 31 to 34 were prepared according to the same procedure as that of the Comparative Example, using the paper type and the amount of the adhesive attached [dry matter weight 7 g / m ² (dry matter weight)] as shown in FIG. With respect to these samples, the air permeability when the wrapper and the chip paper were overlapped and bonded with an adhesive was measured, and the dispersibility of the cigarette with the filter was observed.
The results are shown in Table 5.

[0049]

[Table 5]

As is apparent from Table 5, when the aqueous dispersion paper E containing fibrous carboxymethylcellulose was used and sodium carbonate as an alkali compound was added to the adhesive composition, the sodium carbonate was added to the adhesive composition. The dispersibility was significantly improved as compared with the case where no was added.

Further, when the aqueous dispersion paper A containing the fibrous carboxymethylcellulose salt is used and sodium carbonate as an alkali compound is added to the adhesive composition, there are cases where sodium carbonate is not added to the adhesive composition. The dispersibility was slightly improved in comparison.

Test Example 4 Of the yellow ink for gravure printing (ink I) and the vehicle used for the gravure printing ink having the following composition and produced by a general formulation, a resin which becomes water-resistant after forming a film (specifically, , Nitrocellulose, dehydrated castor oil, chlorinated rubber) with polyvinyl alcohol resin having poor water resistance.
An ink (ink II) which exhibited the same color development as ink I prepared by changing to a 0% aqueous solution was prepared. Using these inks I and II, Zahn Cup No. 15 in 3
After adjusting to second passage, gravure printing machine (plate depth 30 μm)
Each was solid printed on the outer surface of the chip paper.

Composition of Ink I Food Yellow No. 4 Aluminum Lake 10 parts by weight Food Yellow No. 5 Aluminum Lake 10 parts by weight Nitrocellulose 40 parts by weight Dehydrated castor oil 30 parts by weight Chloride rubber 10 parts by weight Ethyl acetate / toluene mixed solution The cigarettes of Sample Nos. 41 and 42 were produced in the same procedure as that of Sample No. 16 of Test Example 1 except that the tip paper printed on was used. The dispersibility of these cigarettes was observed. Table 6 shows the results. According to the printing with Ink II, the drying time was slightly prolonged due to the effect of the solvent (aqueous isopropyl alcohol solution), and "crossing" and "mottling" were slightly generated on the printed surface.

[0054]

[Table 6]

As is clear from Table 6, when the cigarette of Sample No. 41, that is, the ordinary ink I, was used, the dispersibility was significantly reduced as compared with the cigarette of Sample No. 16 which was not printed. On the other hand, sample number 4
When the cigarette No. 2 was used, that is, when the ink II using a water-soluble vehicle was used, the dispersion was slightly delayed, and was not recognized to substantially inhibit the dispersion of the cigarette.

Test Example 5 As a filter medium for a filter rod, (1) a water-soluble adhesive composition (7% by weight of dry matter) containing cellulose acetate tow (3Y-36000) and polyvinyl alcohol and polyvinylpyrrolidone in equal amounts was used. % Added fiber bundle, (2) cellulose acetate short fiber (single yarn fineness 3
Y, 5 mm in length) with 10% of the above-mentioned water-soluble adhesive composition.
Nonwoven fabric (basis weight 156 g / m ² , thickness 3.1 mm) produced by addition, (3) Hardwood pulp LB with low beating degree
Thin paper (basis weight 25.0 g / m ² , thickness 32.4 μ) made of KP and softwood wood pulp NBKP as main raw materials
m), (4) water-dispersible paper (basis weight 38.3 g / m ² , thickness 49.6 μm) containing fibrous sodium carboxymethylcellulose in combination with the main raw material described above, and
(5) As a control, cellulose acetate tow (3Y-
36000) to prepare filter rods using fiber bundles each containing 8% of triacetin. Using these filter rods, as shown in Table 7, using the aqueous dispersion paper B as the wrapper and the aqueous dispersion paper D as the tip paper, the filter cigarettes of sample numbers 51 to 55 were prepared according to the same procedure as the comparative example. did. Dispersibility of these cigarettes with a filter was observed. The results are shown in Table 7.

[0057]

[Table 7]

As shown in Table 7, in the cigarette with the filter using the control product in which the fiber was fused with (5) triacetin of sample No. 55, only the wrapper and the tip paper were dispersed, and the dispersion of the filter rod was hardly observed. I couldn't. On the other hand, sample Nos. 51 and 5 using (1) cellulose acetate tow fiber bundle, (2) cellulose acetate nonwoven fabric and (4) water-dispersible paper.
In the 2,54 filter cigarettes, the dispersion of the filter rods proceeded in parallel with the dispersion of the wrapper and the tip paper, and was substantially dispersed in 2 to 4 cycles. (3) The cigarette with a filter of sample No. 53 using thin paper is the sample No. 51 or 52 using another filter medium,
The dispersion progressed more slowly than the filter-type cigarette of No. 54, but finally the size of the filter-type cigarette was different from that of the sample No. 55 (5) Filter-type cigarette using a control product in which fibers were fused with triacetin. Has shrunk.

Test Example 6 When applying the adhesive for chip paper to the inner surface of the chip paper, as shown in FIG.
Overlapping portion 12 on both side edges of the cigarette rod 1
The non-applied area 16 was provided by applying only to the adjacent area 14 on the side of the joint portion with No. 3 and the adjacent area 15 on the suction port side. The uncoated area 16 has a length L1 of 30 mm and a width L2 of 20 m.
The length L3 from the joint side end of the tip paper 11 with the cigarette rod 13 is 15 m
m. The widths A of the uncoated areas 16 were changed to 4 mm and 8 mm, respectively.
2 cigarettes with filters were produced. With respect to these cigarettes, the dispersibility of the cigarettes with filters was observed, and the amounts of tar and nicotine in smoke and the number of times of smoking were measured. Table 8 shows the results.

[0060]

[Table 8]

As is clear from Table 8, sample No. 61,
The cigarette with a filter No. 62 is a sample No. 1 in which an adhesive for chip paper is applied to the entire surface of the chip paper 11.
The amount of tar and nicotine in the smoke was reduced by 10 to 20% compared to the cigarette with a filter of No. 6. From this result, by providing the uncoated area 16 on the chip paper 11, the chip paper is not subjected to the opening processing,
It was confirmed that the amount of tar and nicotine in the smoke could be reduced. In addition, the width A of the uncoated area 16 is larger than that of the filter cigarette of Sample No. 61, that is, the area of the uncoated area 16 is larger. The filter cigarette of Sample No. 62 further reduces the amount of tar and nicotine in the smoke. Was done. As a result, it was confirmed that the amount of tar and nicotine in the smoke of the cigarette with the filter can be controlled by changing the area of the uncoated region 16.

Further, the cigarettes with filters of sample Nos. 61 and 62 disperse significantly from the uncoated area 16 as compared with the cigarette with filter of sample No. 16 in which the adhesive for chip paper is applied to the entire surface of the chip paper 11. Thus, the dispersibility of the entire filter chip was improved.

[0063]

As described above, in the cigarette with a water-dispersible filter of the present invention, the adhesive for adhering the water-dispersible wrapper and the tip paper is made of a water-insoluble powder or a poorly water-soluble powder and a water-soluble polymer. contains. As a result, the wrapper and the chip paper are quickly dispersed and dissipated by water because the base material is water-dispersible. Also,
Since the water-insoluble powder or the poorly water-soluble powder fills the air holes of the wrapper and the chip paper, the air permeability when the wrapper, the adhesive and the chip paper are combined is reduced. As a result, even if the cigarette butts of the cigarette with a water-dispersible filter are thrown away, the cigarette butts are quickly dispersed and dissipated due to rainfall or the like, and the influence on the environment is reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of an application pattern of an adhesive on chip paper.

[Explanation of symbols]

11: Tip paper, 13: Cigarette rod, 1
6 ... uncoated area.

Continuation of the front page (56) References JP-A-6-248547 (JP, A) JP-A-6-256739 (JP, A) WO 95/18835 (WO, A1) (58) Fields investigated (Int. Cl. ^7, DB name) A24D 1/04 A24D 3/00 A24D 3/08 A24D 3/10 A24D 3/14

Claims (11)

(57) [Claims] 1. A filter rod, a wrapper composed of a water-dispersible substrate disposed on the peripheral surface of the filter rod, and a water-dispersible substrate disposed on the peripheral surface of the wrapper via an adhesive. And a cigarette with a water-dispersible filter including a cigarette rod connected to one end of the filter chip, wherein the adhesive is a water-insoluble powder or a sparingly water-soluble powder. A cigarette with a water-dispersible filter, comprising a body and a water-soluble polymer as a base material for an adhesive. 2. The cigarette with a water-dispersible filter according to claim 1, wherein the air permeability when the wrapper, the adhesive and the chip paper are combined is 1 to 100 Coresta. 3. The water-dispersible filter according to claim 1, wherein the wrapper and the chip paper are a water-dispersible base material obtained by mixing a water-dispersible fiber and a fibrous carboxymethylcellulose salt or a fibrous carboxyethylcellulose salt. cigarette. 4. The cigarette with a water-dispersible filter according to claim 1, wherein the wrapper and the chip paper are a water-dispersible base material obtained by mixing water-dispersible fibers and fibrous carboxymethylcellulose or fibrous carboxyethylcellulose. 5. The cigarette with a water-dispersible filter according to claim 4, wherein the adhesive further contains a water-soluble alkali compound. 6. A cigarette with a water-dispersible filter according to claim 1, wherein the adhesive is distributed over substantially the entire inner surface of the chip paper. 7. The adhesive agent is distributed only in the overlapping portion of the both side edges of the chip paper, the joint portion with the cigarette rod, and the area near the mouthpiece side.
The cigarette with a water-dispersible filter according to any one of the above. 8. The cigarette with a water-dispersible filter according to claim 1, wherein the peripheral surface of the chip paper is printed with a water-soluble ink containing a water-soluble resin. 9. A filter rod comprising a fiber bundle of cellulose acetate converged without adding a plasticizer, a fiber bundle of cellulose acetate adhered with a water-soluble adhesive, a nonwoven fabric, or a paper of plant fiber. 8. The cigarette with a water-dispersible filter according to any one of 7. 10. An adhesive for bonding a wrapper for a filter rod of a cigarette to chip paper when producing a cigarette with a filter, wherein the adhesive contains a water-soluble polymer as a base material of the adhesive, and The adhesive comprising a water-insoluble powder or a poorly water-soluble powder. 11. The adhesive according to claim 10, wherein the water-insoluble powder or the sparingly water-soluble powder is contained in a proportion of 0.5 to 10 parts by weight based on 1 part by weight of the water-soluble polymer.