WO2023112885A1 - ゲル状添加剤を添加したフィルター、該フィルターを備える香味吸引物品、及び香味吸引物品パッケージ - Google Patents
ゲル状添加剤を添加したフィルター、該フィルターを備える香味吸引物品、及び香味吸引物品パッケージ Download PDFInfo
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Images
Classifications
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
Definitions
- the present invention relates to a filter to which a gel additive is added, a flavor inhaling article comprising the filter, and a flavor inhaling article package.
- Patent Document 1 discloses a filter to which triacetin is added to reduce phenol.
- a filter to which a liquid is added tends to leak the liquid during storage, so in Patent Document 1, cellulose acetate is added to reduce leakage.
- Patent Document 2 a powdery material containing fats and oils in a granule base material such as powdered sugar or crystalline cellulose is used as a filter material for smoking articles by using a granular adsorbent that is agglomerated through a polyol. It has been reported that oil stains can be reduced.
- Patent Document 3 discloses a technique of adding an additive solid at room temperature, such as polyethylene glycol or high-molecular-weight methoxypolyethylene glycol, to a filter in order to remove semivolatile compounds such as phenol.
- Patent Document 4 reports a technique for improving the flavor and reducing leakage of liquid from the filter by adding a phenol scavenger having a dropping point of 50° C. or higher to the filter.
- Patent Literature 1 cannot sufficiently prevent leakage of the liquid during storage, and the liquid may leak from the filter to the wrapping paper or tipping paper.
- Patent Document 2 the use of a granular additive can suppress liquid leakage, but there is room for improvement regarding the flavor given to the user when used in a flavor inhaling article.
- Patent Document 3 since the solid additive is heated and melted after being added to the filter material, it is difficult to uniformly add the additive.
- Patent Document 4 uses a semi-solid additive, addition to the filter is performed in a state in which the additive is melted or fluidized by heating. Therefore, the additive may seep into the web after it is added to the filter until it solidifies, and it is desirable to solve this problem.
- the flavor can withstand practical use, there is room for improvement. Therefore, it is desired to achieve both the effect of suppressing liquid leakage and the effect of improving flavor, and to further improve them.
- An object of the present invention is to provide a filter for flavor inhaling articles that can sufficiently filter phenol to improve flavor and that is less likely to leak liquid during storage.
- the inventors of the present invention conducted intensive studies to solve the above problems, and found that by using a gel-like additive as an additive having phenol filtering ability, phenol can be sufficiently filtered to improve the flavor. Furthermore, the present inventors have found that leakage of liquid due to additives can be suppressed even after storage, and have completed the present invention. That is, the gist of the present invention is as follows.
- a filter for a flavor inhalation article comprising: Having a filter medium containing a biodegradable material and a roll paper around which the filter medium is wound, A filter, wherein the filter medium contains a gel additive having phenol filtering ability.
- the gel additive having phenol filtering ability is polyethylene glycol, polypropylene glycol, polybutylene glycol, polyethylene glycol sorbitan fatty acid ester, polypropylene glycol glyceryl ether, polyglycerin fatty acid ester, propylene glycol, diglycerin, caprylyl glycol, propylene glycol.
- Two or more compounds selected from the group consisting of fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, triethyl citrate, fatty acids, fatty acid alkyl esters, phospholipids, hydroxy fatty acids, and high erucine rapeseed extremely hardened oil contains At least one of the two or more compounds is polyethylene glycol, polypropylene glycol, polybutylene glycol, polyethylene glycol sorbitan fatty acid ester, polypropylene glycol glyceryl ether, polyglycerin fatty acid ester, propylene glycol, diglycerin, caprylyl glycol, propylene glycol.
- [1] which is a component having phenol filtration ability selected from the group consisting of fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, triethyl citrate, fatty acids, fatty acid alkyl esters, and phospholipids.
- filter [3] The filter according to [2], wherein the polypropylene glycol has a weight average molecular weight of 2,000 or more and 4,000 or less, and the polypropylene glycol glyceryl ether has a weight average molecular weight of 3,000 or more and 4,000 or less.
- the roll paper further comprises a substrate, The filter according to [5] or [6], wherein the liquid-repellent layer is arranged on the surface of the substrate.
- the liquid-repellent layer contains one or more selected from the group consisting of starch, polyvinyl alcohol, acrylic resin, fluororesin, aluminum, polypropylene, polyethylene, paraffin, silicone, cellulose nanofiber, ethyl cellulose, gum arabic, and nitrocellulose.
- the filter according to any one of [5] to [7] containing.
- Phenol filtration capacity DPR1/DPR0 (i)
- DPR1 A value obtained by dividing the amount of phenol in tobacco smoke passing through the filter by the amount of particulate matter in tobacco smoke passing through the filter when a smoking test was conducted using the filter.
- DPR0 The amount of phenol in tobacco smoke that passes through the reference filter when a smoking test is performed using a reference filter having the same configuration as the filter except that it does not contain the gel additive having the phenol filtering ability, A value divided by the amount of particulate matter in tobacco smoke that passes through the reference filter.
- a flavor inhalation article comprising: [13] The flavor inhaling article according to [12], wherein at least one of the wrapping paper and the tipping paper has a colored portion.
- the liquid-repellent layer provided on the inner wrapping paper is selected from the group consisting of starch, polyvinyl alcohol, acrylic resin, fluororesin, aluminum, polypropylene, polyethylene, paraffin, silicone, cellulose nanofiber, ethyl cellulose, gum arabic, and nitrocellulose.
- the flavor suction according to [14], wherein the liquid-repellent layer provided on the wrapping paper contains one or more selected from the group consisting of ethyl cellulose, acrylic resin, paraffin, polyethylene, polypropylene, fluororesin, and silicone. Goods package.
- the flavor suction article package according to [14], wherein the liquid-repellent layer provided on the inner wrapping paper is liquid-repellent paper.
- a filter for flavor inhaling articles that can sufficiently filter phenol to improve flavor and that is less likely to leak liquid during storage.
- FIG. 4 is a schematic diagram showing a first configuration example of a flavor inhaling article according to a second embodiment of the present invention
- FIG. 4 is a schematic diagram showing a second configuration example of the flavor inhaling article according to the second embodiment of the present invention
- FIG. 4 is a schematic diagram showing a third configuration example of the flavor inhaling article according to the second embodiment of the present invention
- 1 is a graph showing spread area of polypropylene glycol glyceryl ether (PPG-GE) for each test material.
- 1 is a graph showing the spread area of diglycerin for each test material.
- 4 is a graph showing the phenol filtering performance of cigarette samples prepared in Examples. 4 is a graph showing the relationship between the phenol filtration capacity of cigarette samples produced in Examples and the sensory evaluation score of flavor.
- PPG-GE polypropylene glycol glyceryl ether
- Filter A first embodiment of the present invention is a filter for a flavor inhaling article, comprising a filter medium containing a biodegradable material and a roll of paper around which the filter medium is wound, wherein the filter medium has a phenol filtering ability.
- a gel-like additive that has
- the form of the filter is not particularly limited, and may be a plain filter containing a single filter segment, a multi-segment filter containing a plurality of filter segments such as a dual filter or a triple filter, or the like.
- the filter according to this embodiment is a multi-segment filter
- at least one filter segment may have a filter medium to which a gel additive is added. According to the filter according to the present embodiment, even a filter consisting of a single filter segment can sufficiently improve flavor and suppress leakage of liquid.
- the shape of the filter is not particularly limited, and a known shape can be adopted, and usually it can be a columnar shape, and can have the following aspects.
- the filter may be provided with a section such as a cavity or a recess having a hollow (hollow) section in the circumferential direction.
- the cross-sectional shape of the filter in the direction orthogonal to the long axis is substantially circular, and the diameter of the circle can be changed as appropriate according to the size of the product. It is more preferably 5.0 mm or more, and usually 9.0 mm or less, preferably 8.5 mm or less, and more preferably 8.0 mm or less. If the cross section is not circular, the above diameter is assumed to be a circle having the same area as that of the cross section, and the diameter of that circle is applied.
- the length of the circumference of the cross section of the filter in the direction orthogonal to the long axis can be appropriately changed according to the size of the product to be used, but it is usually 14.0 mm or more, preferably 15.0 mm or more, more preferably 16.0 mm.
- the filter in the longitudinal direction can be appropriately changed according to the size of the product. , 35 mm or less, 32.5 mm or less, or 30.0 mm or less.
- the ventilation resistance per 120 mm in the axial direction of the filter is not particularly limited, but is usually 100 mmH 2 O or more, preferably 150 mmH 2 O or more, more preferably 200 mmH 2 O or more, and usually 800 mmH 2 O or less, preferably 700 mmH 2 . O or less, more preferably 600 mmH 2 O or less.
- the airflow resistance of the filter is measured according to the ISO standard method (ISO6565), for example, using a filter airflow resistance measuring instrument manufactured by Cerulean.
- Filter airflow resistance is measured by passing air at a predetermined air flow rate (17.5 mL/s) from one end surface (first end surface) to the other end surface (second end surface) in a state in which air does not permeate the side surfaces of the filter. It refers to the air pressure difference between the first end face and the second end face when flowing. Units are generally expressed in mmH2O . It is known that the relationship between filter ventilation resistance and filter length is proportional in the length range (5 mm to 200 mm in length) that is normally implemented, and if the length is doubled, the ventilation of the filter increases. resistance is doubled.
- the filter according to this embodiment has a filter medium containing a biodegradable material. Since biodegradable materials are decomposed by microorganisms, they have less impact on the environment. Biodegradable materials include cellulose, polylactic acid, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), polylactic acid/polycaprolactone copolymer, polyglycolic acid, polylactic acid/polyether copolymers, butanediol/long-chain dicarboxylic acid copolymers, polybutylene adipate terephthalate, polytetramethylene adipate terephthalate, polyethylene terephthalate succinate, polybutylene succinate, polybutylene succinate adipate, polyvinyl alcohol, etc.; Cellulose is preferred.
- a filter using a filter medium containing cellulose is also called a paper filter.
- Cellulose-containing filter media are typically papers composed of wood pulp.
- the type of wood pulp is not particularly limited, and wood pulp such as coniferous trees and broad-leaved trees can be used.
- the type of paper used for the filter is not particularly limited, and gathered paper, pleated paper, crimped paper, crepe paper, non-woven fabric, shredded paper, and the like can be used.
- the method for producing paper may be either wet or dry, and can be used by being selected arbitrarily.
- Paper filters are characterized by being more easily biodegradable than synthetic fiber tows such as cellulose acetate tows.
- the form of the filter material is not particularly limited, and examples include a form in which fibrous filter materials are gathered and a form in which sheet-like filter materials are gathered. Examples include a form in which paper having a shape structure is collected. If paper with a corrugated structure is used, the longitudinal orientation of the valleys (or crests) is arranged parallel to the longitudinal direction of the filter rod.
- the average distance from trough to trough or crest to crest of the corrugation of the paper filter is not particularly limited, It is usually 0.5 mm or more, preferably 1.0 mm or more, and usually 5.0 mm or less, preferably 4.0 mm or less.
- the average depth of the corrugated valleys of the paper filter is not particularly limited, but is usually 0.1 mm or more, preferably 0.2 mm or more, and usually 1.2 mm or less, preferably 1.0 mm or less. .
- Paper having a corrugated structure can be produced by creping a flat raw material sheet without corrugations to form peaks and valleys.
- the thickness of the raw material sheet is not particularly limited, but is usually 20 ⁇ m or more, preferably 25 ⁇ m or more, more preferably 30 ⁇ m or more, and usually 140 ⁇ m or less, preferably 130 ⁇ m or less, more preferably 120 ⁇ m or less.
- the basis weight of the raw material sheet is not particularly limited, but is usually 20 gsm or more, preferably 25 gsm or more, and usually 120 gsm or less, preferably 80 gsm or less, more preferably 45 gsm or less. The basis weight can be adjusted by adjusting the content of the pulp and the content of the filler, or by adjusting the processing conditions of the wet paper machine.
- the width of the raw material sheet is not particularly limited, but is usually 50 mm or more, preferably 100 mm or more, more preferably 170 mm or more, and 300 mm or less, preferably 250 mm or less, more preferably 230 mm or less.
- the width of the raw material sheet is the length in the direction perpendicular to the major axis direction in which the peaks and valleys are continuously arranged in the paper having a corrugated structure. It is the length in the direction perpendicular to the direction corresponding to the longitudinal direction of the filter medium obtained by processing structured paper.
- the filter medium in the present embodiment contains a gel additive having phenol filtration ability (hereinafter sometimes simply referred to as “gel additive”).
- gel additive a gel additive having phenol filtration ability
- the filter medium contains this gel additive, phenol is removed from the smoke, aerosol, etc., passing through the filter, and the flavor can be improved.
- gel-like refers to a state in which the system as a whole exhibits solid-like properties by having high viscosity due to the formation of a three-dimensional network structure and losing fluidity. Since intermolecular interactions work between the components, each component can maintain its fluidity-lost state.
- the gel-like additive is not particularly limited as long as it has a phenol filtering ability and is gel-like, but it preferably satisfies the following (I) and (II).
- Two or more compounds selected from the group consisting of fatty acid esters, sucrose fatty acid esters, triethyl citrate, fatty acids, fatty acid alkyl esters, phospholipids, hydroxy fatty acids, and high erucine rapeseed extremely hydrogenated oil hereinafter referred to as "component (A) "Also called.) contains.
- component (II) one or more of component (A) is polyethylene glycol, polypropylene glycol, polybutylene glycol, polyethylene glycol sorbitan fatty acid ester, polypropylene glycol glyceryl ether, polyglycerin fatty acid ester, propylene glycol, diglycerin, caprylyl glycol , propylene glycol fatty acid ester, glycerin fatty acid ester, sorbitan fatty acid ester, sucrose fatty acid ester, triethyl citrate, fatty acid, fatty acid alkyl ester, and phospholipid.
- the weight average molecular weight (Mw) of polyethylene glycol, polypropylene glycol, polybutylene glycol, polyethylene glycol sorbitan fatty acid ester, polypropylene glycol glyceryl ether, and polyglycerin fatty acid ester is not particularly limited, and may be, for example, 500 or more, 100, 000 or less.
- the weight-average molecular weight of polypropylene glycol and polypropylene glycol glyceryl ether is preferably 1,000 or more, more preferably 2,000 or more, and 3,000 or more in terms of suppressing ink drop, which will be described later. is more preferably 10,000 or less, more preferably 7,000 or less, and even more preferably 4,000 or less.
- fatty acid moieties in polyethylene glycol sorbitan fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, and sucrose fatty acid esters include those similar to the fatty acids described later. Preferably. This is because saturated fatty acid esters are less likely to generate offensive odors due to decomposition over time without the addition of antioxidants such as vitamin E, and have a lower risk of adversely affecting quality and flavor than unsaturated fatty acid esters. Preferred examples of such saturated fatty acid esters include glycerin fatty acid esters such as triacetin and glycerin behenate.
- the number of fatty acid ester bonds per molecule is not particularly limited. may be such a number as to be fatty acid esterified.
- the fatty acid may be either a straight chain fatty acid or a branched fatty acid, and may be either a saturated fatty acid or an unsaturated fatty acid.
- the number of carbon atoms in the fatty acid is not particularly limited, and is usually 2 or more, preferably 8 or more, more preferably 12 or more, and usually 30 or less, preferably 26 or less, more preferably 22 or less.
- Specific fatty acids include acetic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecenoic acid, palmitoleic acid, oleic acid, linoleic acid, linoleic acid, docosahexaenoic acid, and eicosapentaenoic acid.
- the fatty acid portion of the fatty acid alkyl ester includes, for example, those similar to the fatty acids described above, and for the reasons described above, saturated fatty acids are preferred.
- the alkyl group of the fatty acid alkyl ester may be either a linear alkyl group or a branched alkyl group.
- the number of carbon atoms in the alkyl group is usually 1 or more, preferably 2 or more, and is usually 12 or less, preferably 8 or less, more preferably 4 or less.
- alkyl groups include methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, neopentyl group, n-hexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group, n-undecyl group, n-dodecyl group and the like.
- Hydroxy fatty acids include those in which the carbon atoms of the aliphatic hydrocarbon groups of the above fatty acids are substituted with hydroxy groups.
- the substitution position and number of hydroxy groups are not particularly limited.
- Suitable hydroxy fatty acids include 12-hydroxystearic acid in which the 12-position carbon of stearic acid is substituted with a hydroxy group.
- the phospholipid preferably has one or more ester bonds and/or ether bonds in one molecule, and more preferably two or more, in order to obtain high phenol filtering ability.
- the upper limit of the number of bonds in the phospholipid is not particularly limited, but is usually 10 or less, and may be 8 or less, 6 or less, or 4 or less.
- Specific phospholipids include lecithin, particularly soybean lecithin, egg lecithin, and the like.
- the component having phenol filtering ability is one or more selected from the group consisting of polypropylene glycol glyceryl ether, polyglycerin fatty acid ester, glycerin fatty acid ester, fatty acid, and fatty acid alkyl ester because it exhibits high phenol filtering ability among the above.
- the component itself having phenol filtering ability is liquid under conditions of atmospheric pressure and 25°C (hereinafter referred to as phenol that is liquid under conditions of atmospheric pressure and 25°C).
- phenol liquid under conditions of atmospheric pressure and 25°C
- a component with filterability is sometimes referred to as a "liquid with phenol filterability").
- At least one of the two or more components (A) may be a component having phenol filtering ability, and all the components may be components having phenol filtering ability.
- one or more of the two or more components (A) is preferably a compound that acts as a gelling agent and gels the other components (A). That is, two or more components (A) preferably have high affinity and cause intermolecular interactions such as hydrogen bonding, van der Waals forces, electrostatic interactions, and ⁇ - ⁇ interactions. Due to such intermolecular interaction, the molecules associate to form a three-dimensional network structure and gelation occurs, which makes it possible to suppress liquid leakage.
- Combinations of such component (A) include, for example, polyethylene glycol, polypropylene glycol, polybutylene glycol, polyethylene glycol sorbitan fatty acid ester, polypropylene glycol glyceryl ether, polyglycerin fatty acid ester, propylene glycol fatty acid ester, and glycerin fatty acid ester.
- Such an oxyalkylene polymer and a component that melts by heating such as stearic acid, myristic acid, 12-hydroxystearic acid, high erucine rapeseed extremely hardened oil (for example, those with a melting point of about 50 ° C. to 100 ° C.). .
- ingredients used as thickeners or gelling agents such as glycerin fatty acid esters such as glycerin behenate and polyglycerin fatty acid esters such as polyglycerin octastearate are added to oils such as glycerin fatty acid esters, fatty acids, and fatty acid esters. It is also preferable to use in combination with.
- the components having phenol filtration ability exemplified above not only have high phenol filtration ability, but also specific components that inhibit or deteriorate flavor, such as o-cresol, m-cresol, p-cresol, etc. other than phenol. phenols; pyridines; pyrazines; quinoline; styrene, etc. can also be removed. Therefore, it is also suitable in that the flavor can be further improved.
- a gel-like additive having phenol filtration ability as an additive for removing phenol, it is possible to reduce the leakage of liquid from the filter medium.
- a small amount of liquid may leak out of the three-dimensional network structure of the additive.
- the risk of liquid leaking from the filter medium is lower than when the additive having phenol-filtering ability is in a liquid state.
- Rolling paper by providing a liquid-repellent layer in the region of the rolling paper on which the filter medium is wound that is in contact with the filter medium, even if the gel additive leaks out during storage. Also, it is possible to more effectively prevent leakage of liquid from the filter medium.
- the liquid that leaks from the gel-like additive is mainly the liquid component that has phenol filtering ability (liquid that has phenol filtering ability).
- the spreading area of the component having phenol filtering ability with respect to the liquid-repellent layer (hereinafter sometimes simply referred to as "spreading area") is 35 mm 2 or less.
- the lower limit of the spread area is not particularly limited, and is usually 5 mm 2 or more, and may be 10 mm 2 or more.
- the spread area of the component with phenol filtering ability with respect to the liquid-repellent layer is measured by the following method. First, 10 mg of a component capable of filtering phenol is dropped onto the liquid-repellent layer using a microsyringe, and left to stand for 30 minutes in a room at a temperature of 22° C. and a humidity of 60% RH. After that, using, for example, a digital microscope "VHX-100" manufactured by Keyence Corporation, a component having phenol filtering ability spread over the liquid-repellent layer is observed with a microscope. The perimeter of the component having phenol filtering ability is manually identified from the image obtained by microscopic observation, and the area of the region surrounded by the identified perimeter is calculated as the spread area.
- the total content of components having phenol filtering ability in component (A) is not particularly limited, but is usually 2% by weight or more, preferably 50% by weight or more, more preferably 65% by weight or more, and still more preferably 75% by weight. As mentioned above, it is particularly preferably 80% by weight or more, most preferably 85% by weight or more, and is usually 100% by weight or less, more preferably 98% by weight or less, and further preferably 95% by weight or less.
- the total content of the gel additive in the entire filter including the filter medium and the paper roll is preferably 1 mg or more, more preferably 5 mg or more, still more preferably 10 mg or more, and is preferably 250 mg or less, more preferably 50 mg or less. More preferably, it is 30 mg or less.
- the gel additive may contain known additives such as thickeners, fragrances, and colorants. Moreover, the gel additive may contain impurities such as water as long as the effects of the present invention are not impaired. Among known additives, a thickener is preferable in that it can prevent leakage of liquid caused by a gel additive and enhance the effect of maintaining a good appearance.
- the thickening agent is not particularly limited as long as it can be retained in the gel additive, and examples include xanthan gum, gellan gum, psyllium seed gum, pectin, carboxymethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, agarose, pullulan, and alginic acid. , polyacrylic acid, urethane compounds, and alkali metal salts or alkaline earth metal salts thereof.
- the thickener is preferably carboxymethylcellulose.
- the content of the thickening agent in the filter medium varies depending on its type, but is, for example, 0.5 mg/filter or more and 200 mg/filter or less. Further, for example, when the thickener is carboxymethyl cellulose, the amount per filter may be 10 mg/filter or more and 150 mg/filter or less.
- the filter medium is a crushable additive release container (also called “capsule” in the technical field) containing a crushable outer shell such as activated carbon and gelatin. ) may be included.
- a crushable additive release container also called “capsule” in the technical field
- the capsule When the capsule is broken before, during, or after use by a user of the flavor inhalation article, it releases the additive contained therein, which then releases the flavor during use of the flavor inhalation article. Some or all of it is transferred to the airflow passing through the suction article and to the filter media after use.
- the form of the capsule is not particularly limited.
- it may be an easily breakable capsule, and the shape is preferably spherical.
- Additives contained in the capsule are not particularly limited, but preferably contain perfume and activated charcoal.
- the form of the additive is not particularly limited, and is usually liquid or solid, but may contain the above gel additive. It should be noted that the use of capsules containing excipients is well known in the art. Destructible capsules and methods of making them are well known in the art. In addition, known fragrances and activated carbon can be used.
- the filter of the present embodiment has a rolling paper around which the filter medium is wound.
- the web is preferably wound together with these two or more segments.
- the plurality of filter segments may be fixed with the forming paper.
- the material, thickness, weight, etc. of the forming paper are not particularly limited, and the same paper as the roll paper can be used.
- Embodiments of the web are not particularly limited and may include one or more rows of adhesive-containing seams.
- the adhesive may comprise a hot melt adhesive. Also, the adhesive may include polyvinyl alcohol.
- the material of the roll paper is not particularly limited, and known materials can be used.
- the web may also contain a filler such as calcium carbonate.
- the thickness of the roll paper is not particularly limited, and is usually 20 ⁇ m or more, preferably 30 ⁇ m or more, and usually 140 ⁇ m or less, preferably 130 ⁇ m or less, more preferably 120 ⁇ m or less.
- the basis weight of the web is not particularly limited, and is usually 20 gsm or more, preferably 22 gsm or more, more preferably 23 gsm or more, and usually 100 gsm or less, preferably 95 gsm or less, more preferably 90 gsm or less.
- the roll paper in this embodiment preferably has a liquid-repellent layer in a region that contacts the filter material.
- the liquid-repellent layer is a layer having liquid repellency against the liquid derived from the gel-like additive, particularly the liquid among the components having phenol filtering ability (liquid having phenol filtering ability).
- the web may consist of only a liquid-repellent layer, or may have a substrate and a liquid-repellent layer disposed on the surface of the substrate.
- the paper roll When the paper roll has a base material and a liquid-repellent layer disposed on the surface of the base material, the paper roll is coated with a coating agent containing a material for forming the liquid-repellent layer by means of coating, vapor deposition, or the like, as described later. It may be laminated on the material surface.
- the substrate is not particularly limited, and includes known paper used for roll paper, non-woven fabric made of polymer fibers, liquid-repellent paper described later, and the like.
- Materials for forming the liquid-repellent layer can be appropriately selected from polymers, metals, inorganic oxides, and the like.
- the materials forming the liquid-repellent layer may be used singly, or two or more of them may be used in any combination and ratio.
- Polysaccharides such as starch, cellulose, acetyl cellulose, ethyl cellulose, nitrocellulose, and gum arabic; paraffin; polyolefins such as polyethylene and polypropylene; polystyrene; Fluororesins such as fluoroethylene; Acrylic resins such as polymethyl acrylate and polymethyl methacrylate; Natural rubber; Synthetic rubbers such as polybutadiene; Silicones such as polydimethylsiloxane; etc.
- celluloses such as cellulose, acetyl cellulose, ethyl cellulose, and nitrocellulose are preferably used in the form of nanofibers because they exhibit high liquid repellency.
- the fluororesin for example, among the above-mentioned polymers, polystyrene, polyvinyl, acrylic resin, silicone, etc., in which hydrogen atoms of alkenyl groups or alkyl groups that are main chains or side chains are substituted with fluorine atoms; perfluoroalkylene groups or those having a perfluoroalkyl group; and the like.
- the fluororesin preferably has a perfluoroalkylene group or a perfluoroalkyl group, more preferably has a perfluoroalkylene group, and is even more preferably polytetrafluoroethylene. .
- the material for forming the liquid-repellent layer is preferably one or more selected from the group consisting of ethyl cellulose, acrylic resin, paraffin, polyethylene, polypropylene, fluororesin, and silicone among those mentioned above.
- Aluminum etc. can be mentioned as a metal.
- inorganic oxides include silica and alumina.
- the material for forming the liquid repellent layer is, among the above materials, moderately liquid repellent against the liquid leaking from the gel additive, especially the liquid having phenol filtering ability.
- a material exhibiting properties can be appropriately selected and used.
- the liquid having phenol filtering ability contained in the gel additive is diglycerin, sorbitan monofatty acid ester, sorbitan difatty acid ester, glycerin monofatty acid.
- esters polyglycerin fatty acid esters and the like, compounds having a higher surface tension than polypropylene glycol glyceryl ether are preferred. This is because a liquid having a high surface tension and phenol filtering ability tends to be difficult to wet and spread on the surface of the paper roll, thereby suppressing leakage of the liquid from the filter medium.
- the surface tension of a liquid with phenol filtering ability against the liquid-repellent layer is measured by the pendant drop method (ds/de method). Specifically, the surface tension is calculated from the shape of a droplet (hanging drop) formed by a liquid having phenol-filtering ability extruded from the tip of a vertically downward capillary tube. For the calculation, the maximum diameter (equatorial plane diameter) de of the hanging drop and the hanging drop diameter ds at a position that is elevated by de from the lowermost surface of the hanging drop are used.
- the material for forming the liquid-repellent layer is selected from the group consisting of starch, polyvinyl alcohol, acrylic resin, fluororesin, aluminum, polypropylene, polyethylene, paraffin, silicone, cellulose nanofiber, ethyl cellulose, gum arabic, and nitrocellulose.
- the liquid having phenol filtration ability contained in the gel additive is polypropylene glycol, polypropylene glycol glyceryl ether, polybutylene glycol, diglycerin, sorbitan monofatty acid ester, sorbitan difatty acid ester, glycerin monofatty acid.
- esters polyglycerol fatty acid esters, polyethylene glycols, caprylyl glycols, etc., compounds having a spread area of 35 mm 2 or less with respect to the liquid-repellent layer are preferred.
- liquid-repellent layer is liquid-repellent paper.
- Liquid-repellent paper means paper whose liquid resistance is improved by controlling the surface smoothness and density by increasing the beating degree of the raw material or performing calendering. Examples of the liquid-repellent paper include glassine paper and the like.
- the liquid-repellent layer is preferably a layer with a uniform thickness over the entire area, but may be a layer containing two or more regions with different thicknesses.
- the average thickness of the liquid-repellent layer is not particularly limited, and can be appropriately set depending on the type of substrate, the type of the liquid-repellent layer, and the like.
- the average thickness of the liquid-repellent layer can be 5 ⁇ m or more and 30 ⁇ m or less.
- the ratio of the thickness of the liquid-repellent layer to the thickness of the base material can be about 0.01 or more and 1.0 or less.
- the coating amount of the coating agent may be appropriately adjusted so that the liquid-repellent layer has the thickness described above. As long as there is no problem with liquid repellency or manufacturing aptitude, a smaller amount of coating is preferable from the viewpoint of manufacturing cost. However, if there is an uncoated area, the liquid may leak from that area, so it is preferable to form the liquid-repellent layer over the entire surface of the substrate.
- the material, thickness, weighing weight, etc. of the molding paper are not particularly limited, and the same ones as the above-mentioned roll paper can be mentioned. At least part of the forming paper may be provided with the liquid-repellent layer.
- Phenol Filtration Ability The filter of the present embodiment can sufficiently remove phenol.
- the phenol removal performance can be evaluated by the phenol filtering ability represented by the following formula (i).
- Phenol filtration capacity DPR1/DPR0 (i)
- DPR1 A value obtained by dividing the amount of phenol in tobacco smoke passing through the filter by the amount of particulate matter in tobacco smoke passing through the filter when a smoking test was conducted using the filter.
- DPR0 The amount of phenol in tobacco smoke that passes through the reference filter when a smoking test is performed using a reference filter having the same configuration as the filter except that it does not contain the gel additive having the phenol filtering ability, A value divided by the amount of particulate matter in tobacco smoke that passes through the reference filter.
- the phenol filtering ability of the filter of the present embodiment is preferably 0.83 or less, more preferably 0.70 or less, because the smaller the value, the better the flavor when used in a flavor inhaling article. , more preferably 0.60 or less, particularly preferably 0.50 or less.
- the lower limit of the phenol filtration ability of the filter of the present embodiment is not particularly limited, and is usually 0 or more, and may be 0.10 or more, 0.20 or more, 0.30 or more, or 0.40 or more.
- the phenol filtration capacity represented by formula (i) is calculated by the following steps (1) to (8).
- a cigarette sample is prepared by connecting a filter (evaluation target filter) according to the present embodiment and a tobacco rod with tipping paper.
- Cigarette samples are automatically smoked with an automatic smoking machine (eg, SM410 manufactured by Cerulean), and particulate matter (TPM) in tobacco smoke is collected with a glass fiber filter (eg, Cambridge filter "Borgwaldt 44 mm ⁇ ").
- the conditions for automatic smoking are, for example, a smoke suction capacity of 17.5 mL/second, a smoke suction time of 2 seconds/puff, a smoke suction frequency of 1 puff/minute, and a cigarette butt length of 35 mm.
- the average of the phenol filtering performance obtained in (5) is defined as DPR1.
- DPR0 be the average of the phenol filtration capacity obtained in the same manner as in 6
- the phenol filtration capacity is calculated by dividing the DPR1 obtained in (6) above by the DPR0 obtained in (7) above.
- the particulate matter in tobacco smoke collected by one glass fiber filter may be one cigarette sample, or may be a plurality of cigarette samples of the same kind. It's my duty.
- the filter production method is not particularly limited, and the filter can be produced by a known method.
- the filter when the filter is a paper filter, it can be manufactured by a method of forming a filter rod using paper obtained by papermaking from wood pulp. Specifically, for example, a step of creping the paper obtained by papermaking to give the paper wrinkles in a corrugated shape, a step of gathering the obtained paper having a corrugated structure to prepare a filter medium, A paper filter can be manufactured by a step of winding the obtained filter medium with a roll paper to prepare a rod-shaped long filter, and a step of cutting the rod-shaped long filter to a desired length.
- the gel additive can be added to the filter medium at any stage. For example, it may be after the step of corrugating paper, before the step of producing a rod-shaped long filter, or after the step of producing a rod-shaped long filter.
- the paper machine a conventionally known machine such as a cylinder paper machine, an inclined short mesh paper machine, a fourdrinier paper machine, a short mesh paper machine, etc. can be used, and the paper machines can be appropriately combined according to the required properties. can be done. Also, a dry method such as a resin bond nonwoven fabric, a thermal bond nonwoven fabric, a spunlace nonwoven fabric, etc. can be used as appropriate.
- Filters other than paper filters can be manufactured according to the paper filter manufacturing method described above after molding the material into a sheet.
- a filter can be manufactured by gathering fibrous materials, winding them with a roll of paper, forming them into a rod shape, and cutting them into desired lengths.
- Addition of the gel-like additive to the filter medium is carried out by first preparing the gel-like additive, and then applying the obtained gel-like additive to the filter medium and/or paper before being formed into the filter medium (hereinafter, an explanation of the manufacturing method of the filter). , these are sometimes simply referred to as “filter media”).
- the gel-like additive can be prepared by mixing two or more components (A) and, if necessary, additives such as thickeners, perfumes and colorants.
- the mixing method is not particularly limited, and for example, all components may be mixed simultaneously using a reactor or shaker equipped with a stirrer or stirring blade, or each component may be mixed in any order.
- the mixing conditions are not particularly limited, and mixing may be performed at 50° C. or higher and 120° C. or lower for 5 minutes or longer and 1 hour or shorter.
- a mixture containing two or more components (A) is added to the filter medium before complete gelation, and then the temperature is lowered and held for 1 minute or more and 1 hour or less to complete gelation. good too.
- the method of adding the gel additive to the filter medium is not particularly limited, and known methods can be used. Specific examples include sending or spraying a liquid using a pressure pump; coating using a coating roller, brush, or the like; and the like.
- the gel-like additive-forming solution is added to the filter medium of the long rod-like filter using a microsyringe. You may let In addition, when the filter material constituting the filter is composed of a plurality of materials, the gel additive-forming solution may be added to some of the materials, or may be added to all of the materials. Moreover, it may be added to a part of the filter medium, or may be added substantially uniformly over the entire filter medium. Alternatively, the gel additive may be heated prior to addition to impart fluidity to the gel additive and then added to the filter medium.
- the amount of the gel additive forming solution to be added is not particularly limited, but is an amount such that the gel additive formed by gelation is 1 mg or more and 250 mg or less per 10 mm of the filter.
- “10 mm” in “per 10 mm of the filter” means 10 mm in the longitudinal direction of the filter.
- a second embodiment of the present invention comprises a tobacco rod wrapped with wrapping paper, a filter according to the first embodiment of the present invention, and tipping paper connecting the tobacco rod and the filter.
- a flavor inhalation article comprising:
- flavor inhaling article is a general term for inhaling articles that allow users to taste flavors such as tobacco flavor. More specifically, the flavor inhaling articles include combustion type flavor inhaling articles that provide flavor to the user by burning the flavor source; non-combustion type flavor inhaling articles that provide flavor to the user by heating the flavor source without burning it Heated flavor inhalation articles; and non-combustion, non-heated flavor inhalation articles that provide the user with flavor generated from a flavor source without heating or burning the flavor source.
- the tobacco rod is not particularly limited as long as it is in a known form, but usually it is a form in which a tobacco filler is wrapped with wrapping paper.
- the tobacco filling is not particularly limited, and known materials such as shredded tobacco and reconstituted tobacco sheets can be used.
- the wrapping paper refers to the paper around which the tobacco filler is wrapped, and is distinguished from the wrapping paper, which is the paper around which the filter material is wrapped.
- the moisture content of ordinary tobacco fillers such as shredded tobacco contained in tobacco rods may be 10% by weight or more and 15% by weight or less, preferably 11% by weight or more and 13% by weight or less. Such a water content suppresses the occurrence of winding stains and improves the winding aptitude when producing flavor inhaling articles.
- the tobacco filler may contain an aerosol base.
- An aerosol base is a base that generates an aerosol when heated, and is exemplified by glycerin, propylene glycol, and mixtures thereof.
- the material of the wrapping paper around which the tobacco filler is wrapped there are no particular restrictions on the material of the wrapping paper around which the tobacco filler is wrapped, and known materials can be used, and it may contain a filler such as calcium carbonate. At least part of the wrapping paper may be provided with a liquid-repellent layer similar to the liquid-repellent layer that the wrapping paper of the filter according to the first embodiment of the present invention may have.
- the material of the tipping paper that connects the tobacco rod and the filter is also not particularly limited, and known materials can be used.
- the tipping paper may also contain fillers such as calcium carbonate.
- at least part of the tipping paper may be provided with a liquid-repellent layer similar to the liquid-repellent layer that the winding paper of the filter according to the first embodiment of the present invention may have.
- the flavor inhaling article according to this embodiment can also be suitably applied to a mode in which at least one of the wrapping paper and the tipping paper has a colored portion.
- FIGS. 1 to 3 are schematic diagrams of combustion-type flavor inhalation articles (cigarettes) in which the filter is a plain filter or a multi-segment filter.
- each filter segment composed of the filter medium 2 is wound with a paper roll 4 to form a filter 7 .
- the filter 7 is formed by winding all of the filter segments wrapped with the paper roll 4 with the forming paper 5 .
- filter 7 is connected to tobacco rod 1 by tipping paper 6 .
- the filter according to the first embodiment of the present invention can improve flavor and suppress liquid leakage even if it is composed of a single filter segment as shown in FIG. That is, the filter according to the first embodiment of the present invention and the tobacco rod may be adjacent to each other.
- the filter is a multi-segment filter
- a gel additive is added to one filter segment marked with "*", and the gel additive is added to the filter segment that constitutes the end on the mouthpiece side.
- An embodiment is also preferred (Fig. 2).
- the gel is added only to the filter segment that does not contact the tobacco rod and does not form the end on the mouthpiece side, that is, only the filter segment that forms the middle in the axial direction.
- An embodiment in which an agent is added (Fig. 3) is also included.
- the filter segments are continuous in the axial direction, but there are no filter segments other than the segments in contact with the mouth end of the filter, that is, Embodiments in which gaps (also called cavities) are present between the filter segments can also be mentioned.
- the cavity can be formed by cylindrically forming the molding paper or chip paper, but in this case, the molding paper or the like forming the cavity does not necessarily need to have a liquid-repellent layer.
- the tipping paper in this embodiment can be provided with ventilation holes for adjusting the ratio of air to mainstream tobacco smoke inhaled during smoking (illustrated by dotted lines in the tipping paper indicated by 6 in FIGS. 1 to 3) what was done).
- the arrangement of the ventilation holes is not particularly limited, and may be arranged in one or two rows in the circumferential direction of the cigarette.
- the pitch of the ventilation holes, the size of the holes, and the opening method are not particularly limited.
- the filter is located at least 2 mm away from the tobacco rod side end of the filter containing the gel additive toward the tobacco rod side. By doing so, an improvement in flavor can be expected.
- a third embodiment of the present invention is a flavor inhaling article package in which the flavor inhaling article according to the second embodiment of the present invention is enclosed by an inner wrapping paper, wherein the flavor inhaling article is wrapped by the inner wrapping paper. It is directly wrapped, and a liquid-repellent layer is provided at least on the region of the inner wrapping paper that contacts the filter of the flavor inhaling article.
- the inner wrapping paper is provided with a liquid-repellent layer at a portion that contacts the end face of the filter on the mouthpiece side.
- the additive added to the filter medium of the filter of the flavor inhaling article is in gel form, the liquid hardly leaks from the filter medium. Therefore, it can be expected that the liquid will not diffuse easily in the flavor inhaling article package.
- a liquid-repellent layer in the area of the inner wrapping paper that contacts the filter of the flavor inhaling article, it is possible to prevent the liquid leaking from the filter medium from spreading on the surface of the inner wrapping paper. It can prevent the liquid from spreading.
- the shape and volume of the package for filling the flavor inhalation article of the present embodiment are not limited, and existing packages can be used.
- a preferable volume range of the package is not particularly limited, and is, for example, 30 cm 3 or more and 150 cm 3 or less.
- the number of flavor inhaling articles to be filled in the package is usually 20, but may be changed as appropriate depending on the shape and size of the package.
- the inner wrapping paper may consist of only a liquid-repellent layer, or may have a substrate and a liquid-repellent layer disposed on the surface of the substrate.
- the paper roll has a base material and a liquid-repellent layer disposed on the surface of the base material
- the paper roll is formed by laminating a coating agent containing a material for forming the liquid-repellent layer on the surface of the base material by means of coating, vapor deposition, or the like.
- the base material is not particularly limited, and examples thereof include known paper used for roll paper, non-woven fabric composed of polymer fibers and the like, liquid-repellent paper, and the like.
- Examples of materials for forming the liquid-repellent layer provided on the inner wrapping paper include materials for forming the liquid-repellent layer that may be included in the paper roll of the filter according to the first embodiment of the present invention. Aspects are also the same.
- a preferred embodiment is one in which the liquid-repellent layer is liquid-repellent paper.
- the liquid-repellent layer and the liquid-repellent layer of the inner wrapping paper may be layers formed of the same material, or layers formed of different materials. There may be.
- ⁇ Liquid spreading test> In a room with a temperature of 22° C. and a humidity of 60% RH, 10 mg of a liquid capable of filtering phenol was dropped onto the test material using a microsyringe, and the spreading area of the droplet was measured after 30 minutes.
- polypropylene glycol glyceryl ether (PPG-GE, weight average molecular weight 4,000) and diglycerin were used as liquids having phenol filtering ability.
- plain paper for roll paper commercially available starch-coated paper, fluororesin (fluororesin containing perfluoroalkyl groups) coated paper, glassine paper (manufactured by Yoshiyo Kobo), aluminum foil (Mitsubishi aluminum), polypropylene film (manufactured by Japan), polyethylene-coated paper (manufactured by Fukusuke Kogyo), paraffin-coated paper (manufactured by Kojima Shojido Honpo), silicone-coated paper (manufactured by Nippon Paper Crecia), cellulose nanofiber film (Chuetsu Pulp) Kogyo), nitrocellulose coated paper, ethyl cellulose coated paper, acrylic resin coated paper, polyvinyl alcohol coated paper, and gum arabic coated paper were used. Immediately after dropping, the droplets spread on the test material, but the spreading of the droplets was stable after 30 minutes under all conditions except for plain paper.
- the area over which the droplets spread on the test material was calculated by image processing.
- a digital microscope "VHX-100" manufactured by Keyence Corporation was used to measure the spreading of the droplets. The magnification of the digital microscope was set to 5 times, and the focus was adjusted so that the standard scale could be clearly distinguished.
- Calibration of the device was performed by designating the length in the 10 mm range of the standard scale using the attached software. 10 mg of the additive was dropped on a test material of about 3 cm square, and after 30 minutes when the spread was stabilized, the test material was photographed from above with a digital microscope. At that time, the level of irradiation light was adjusted so that the periphery of the dropped additive droplet could be clearly visually recognized. For the image, the periphery of the additive droplet was specified precisely in the measurement-manual-polygon mode of the accompanying software, and the spread area was calculated.
- Table 1 shows the average spread area and the 95% confidence interval (95% C.I.) of three measurements. Further, the results using PPG-GE are shown in FIG. 4, and the results using diglycerin are shown in FIG. The dashed lines in FIGS. 4 and 5 indicate the position where the spreading area was 36.3 mm 2 (out of three PPG-GE spreading tests conducted on starch-coated paper, the result was the smallest spreading area). indicates From Table 1, FIGS. 4 and 5, it can be seen that the spread of the liquid is greatly suppressed in the test material having the liquid-repellent layer.
- the liquid having phenol filtration ability used was polyethylene glycol (weight average molecular weight 600), polypropylene glycol (weight average molecular weight 700, 1,000, 2,000, 3,000), polypropylene glycol glyceryl ether (weight average molecular weight 500, 1,000, 3,000, 4,000), polybutylene glycol (weight average molecular weight 500, 700), diglycerin, and caprylyl glycol.
- a paper filter with a length of 27 mm and a diameter of 7.7 mm was prepared. Specifically, first, corrugated wrinkled paper (basis weight 40 g/m 2 ) is folded so as to form a plurality of air channels each extending from one end to the other end, and plain paper for roll paper is folded. After winding with , it was cut at a length of 120 mm to prepare a filter rod. The ventilation resistance of the filter rod was adjusted to 400 mmH 2 O, and the filter diameter was adjusted to 7.7 mm ⁇ . This filter rod was cut to a length of 27 mm to obtain a paper filter of Comparative Example 1 containing no gelatinous additive.
- Example 1 cigarette samples of Examples 1 to 8 and Comparative Example 1 were produced by joining tobacco rods of commercially available cigarettes “Winston” and the above paper filters.
- Cigarette samples of Examples 1 to 8 and Comparative Example 1 were subjected to smoking test and analysis under the following conditions.
- SM410 automatic smoking machine
- a cigarette sample was automatically smoked under the conditions of a smoke suction capacity of 17.5 mL / second, a smoking time of 2 seconds / puff, a smoking frequency of 1 puff / minute, and a cigarette butt length of 35 mm.
- Smoke particulate matter (TPM) was collected with a Cambridge filter (Borgwaldt 44 mm ⁇ ). The amount of TPM was measured by the difference in mass of the Cambridge filters before and after smoking.
- the Cambridge filter was immersed in 10 mL of the phenol extraction solvent shown in Table 4 below and shaken in a screw tube bottle to obtain an analysis sample. 1 ⁇ L of the resulting analysis sample was taken with a microsyringe and analyzed by gas chromatography-mass selective detector (GC-MSD).
- GC-MSD gas chromatography-mass selective detector
- the amount of TPM per cigarette sample and the amount of phenol in tobacco smoke generated from one cigarette sample were measured for each cigarette sample.
- the value obtained by dividing the amount of phenol in the tobacco smoke generated from one cigarette sample by the amount of TPM per cigarette sample is relative to the value in the cigarette sample of Comparative Example 1 as 1.
- the phenol filtration capacity of the paper filters of Examples 1-8 was evaluated. Table 5 shows the average value of three evaluation results, and FIG. 6 shows the average value and standard deviation.
- filters containing gel additives have a filtering ability for phenol (Examples 1 to 8).
- polypropylene glycol glyceryl ether weight average molecular weight 4,000
- triacetin such as stearic acid or myristic acid or high erucine rapeseed extremely hardened oil, or triacetin as a component having phenol filtering ability.
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Abstract
Description
特許文献2には、粉糖、結晶セルロース等の顆粒基材の中に油脂を包含した粉状物を、ポリオールを介して凝集した顆粒状の吸着剤を用いることで、喫煙物品用フィルター濾材への油染みを低減できることが報告されている。
特許文献3には、フェノール等の半揮発性化合物を除去するために、ポリエチレングリコール、高分子メトキシポリエチレングリコール等の室温で固体の添加剤をフィルターに添加する技術が開示されている。
特許文献4には、フィルターに滴点50℃以上のフェノール捕捉剤をフィルターに添加することで、香味を改善したり、フィルターからの液体の漏出を低減したりする技術が報告されている。
また、特許文献2では、顆粒状の添加剤を使用することにより、液体の漏出を抑制できるものの、香味吸引物品に使用した際にユーザに与える香味に関しては、改善の余地がある。
特許文献3では、固体の添加剤をフィルター材に添加後に加熱溶融させるため、均一な添加が難しく、また、巻き上げ後に加熱するため操作性に劣る。
特許文献4では、半固体の添加剤を使用しているものの、フィルターへの添加は、加熱により当該添加剤を融解した状態又は流動性を持たせた状態で行われる。そのため、フィルターに添加されてから固化するまでの間に添加剤が巻取紙に染み出す場合があり、この問題を解消することが望ましい。また、香味は、実用化に耐えうるものの、改善の余地がある。
したがって、液体漏出の抑制効果及び香味改善効果の両立及びさらなる改善が求められている。
香味吸引物品用のフィルターであって、
生分解性を有する素材を含む濾材と、前記濾材を巻装する巻取紙とを有し、
前記濾材が、フェノール濾過能を有するゲル状添加剤を含有する、フィルター。
〔2〕
前記フェノール濾過能を有するゲル状添加剤が、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、リン脂質、ヒドロキシ脂肪酸、及びハイエルシン菜種極度硬化油からなる群より選択される2種以上の化合物を含有し、
前記2種以上の化合物うち1種以上が、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、及びリン脂質からなる群より選択されるフェノール濾過能を有する成分である、〔1〕に記載のフィルター。
〔3〕
前記ポリプロピレングリコールの重量平均分子量が2,000以上4,000以下であり、前記ポリプロピレングリコールグリセリルエーテルの重量平均分子量が3,000以上4,000以下である、〔2〕に記載のフィルター。
〔4〕
前記フェノール濾過能を有する成分が、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、グリセリン脂肪酸エステル、脂肪酸、及び脂肪酸アルキルエステルからなる群より選択される1種以上である、〔2〕に記載のフィルター。
〔5〕
前記巻取紙は、前記濾材と接する領域に撥液層を備える、〔1〕~〔4〕のいずれかに記載のフィルター。
〔6〕
前記フェノール濾過能を有する成分の前記撥液層に対する広がり面積が、35mm2以下である、〔5〕に記載のフィルター。
〔7〕
前記巻取紙は、さらに基材を備え、
前記撥液層が、前記基材の表面上に配置されている、〔5〕又は〔6〕に記載のフィルター。
〔8〕
前記撥液層が、デンプン、ポリビニルアルコール、アクリル樹脂、フッ素樹脂、アルミニウム、ポリプロピレン、ポリエチレン、パラフィン、シリコーン、セルロースナノファイバー、エチルセルロース、アラビアガム、及びニトロセルロースからなる群より選択される1種以上を含有する、〔5〕~〔7〕のいずれかに記載のフィルター。
〔9〕
前記撥液層が、エチルセルロース、アクリル樹脂、パラフィン、ポリエチレン、ポリプロピレン、フッ素樹脂、及びシリコーンからなる群より選択される1種以上を含む、〔5〕~〔7〕のいずれかに記載のフィルター。
〔10〕
前記撥液層が、撥液紙である、〔5〕~〔7〕のいずれかに記載のフィルター。
〔11〕
下記式(i)で表されるフェノール濾過能が、0.83以下である、〔1〕~〔10〕のいずれかに記載のフィルター。
フェノール濾過能=DPR1/DPR0 (i)
DPR1:前記フィルターを用いて喫煙試験を行った場合の、該フィルターを通過するたばこ煙中のフェノール量を、該フィルターを通過するたばこ煙中粒状物質の量で除した値。
DPR0:前記フェノール濾過能を有するゲル状添加剤を含まない以外は前記フィルターと同構成の基準フィルターを用いて喫煙試験を行った場合の、該基準フィルターを通過するたばこ煙中のフェノール量を、該基準フィルターを通過するたばこ煙中粒状物質の量で除した値。
〔12〕
巻紙で巻装されたたばこロッドと、
〔1〕~〔11〕のいずれかに記載のフィルターと、
前記たばこロッドと前記フィルターとを接続するチップペーパーと、
を備える香味吸引物品。
〔13〕
前記巻紙及び前記チップペーパーの少なくとも一方は、着色部を有する、〔12〕に記載の香味吸引物品。
〔14〕
香味吸引物品が内包紙により内包された香味吸引物品パッケージであって、
前記香味吸引物品が、〔12〕又は〔13〕に記載の香味吸引物品であり、
前記香味吸引物品が、前記内包紙により直接包装されており、
少なくとも前記内包紙の前記フィルターと接する領域に、撥液層が設けられている、香味吸引物品パッケージ。
〔15〕
前記内包紙に設けられた前記撥液層が、デンプン、ポリビニルアルコール、アクリル樹脂、フッ素樹脂、アルミニウム、ポリプロピレン、ポリエチレン、パラフィン、シリコーン、セルロースナノファイバー、エチルセルロース、アラビアガム、及びニトロセルロースからなる群より選択される1種以上を含有する、〔14〕に記載の香味吸引物品パッケージ。
〔16〕
前記内包紙に設けられた前記撥液層が、エチルセルロース、アクリル樹脂、パラフィン、ポリエチレン、ポリプロピレン、フッ素樹脂、及びシリコーンからなる群より選択される1種以上を含む、〔14〕に記載の香味吸引物品パッケージ。
〔17〕
前記内包紙に設けられた前記撥液層が、撥液紙である、〔14〕に記載の香味吸引物品パッケージ。
本明細書において、「~」を用いてその前後に数値又は物性値を挟んで表現する場合、その前後の値を含むものとして用いることとする。また、数値範囲の下限値及び上限値を分けて記載する場合、当該数値範囲は、それらのうち任意の下限値と任意の上限値とを組み合わせたものとすることができる。
本発明の第1の実施形態は、香味吸引物品用のフィルターであって、生分解性を有する素材を含む濾材と前記濾材を巻装する巻取紙とを有し、前記濾材がフェノール濾過能を有するゲル状添加剤を含有する。
フィルターの形態は、特に限定されず、単一のフィルターセグメントを含むプレーンフィルターや、デュアルフィルター又はトリプルフィルター等の複数のフィルターセグメントを含むマルチセグメントフィルター等とすることができる。本実施形態に係るフィルターがマルチセグメントフィルターである場合は、少なくとも1つのフィルターセグメントが、ゲル状添加剤が添加された濾材を有していればよい。
本実施形態に係るフィルターによれば、単一のフィルターセグメントからなるフィルターであっても、十分に香味を改善し、液体の漏出を抑制することが可能である。
また、フィルターは、周方向の断面が中空(空洞)となるキャビティやリセス等のセクションを設けていてもよい。
フィルターの長軸に直交する方向の断面の周の長さは、使用する製品のサイズに合わせて適宜変更し得るが、通常14.0mm以上、好ましくは15.0mm以上、より好ましくは16.0mm以上、また、通常27.0mm以下、好ましくは26.0mm以下、より好ましくは25.0mm以下である。
フィルターの長軸方向の長さは、製品のサイズに合わせて適宜変更し得るが、5mm以上、10mm以上、15mm以上、17.5mm以上、又は20.0mm以上であってよく、また、40mm以下、35mm以下、32.5mm以下、又は30.0mm以下であってよい。
本実施形態に係るフィルターは、生分解性を有する素材を含む濾材を有する。生分解性を有する素材は、微生物により分解されるため、環境負荷が少ない。生分解性を有する素材としては、セルロース、ポリ乳酸、ポリ(3-ヒドロキシブチレート-コ-3-ヒドロキシヘキサノエート)、ポリ乳酸/ポリカプロラクトン共重合体、ポリグリコール酸、ポリ乳酸/ポリエーテル共重合体、ブタンジオール/長鎖ジカルボン酸共重合体、ポリブチレンアジペートテレフタレート、ポリテトラメチレンアジペートテレフタレート、ポリエチレンテレフタレートサクシネート、ポリブチレンサクシネート、ポリブチレンサクシネートアジペート、ポリビニルアルコール等が挙げられ、特にセルロースが好ましい。セルロースを含む濾材を用いたフィルターはペーパーフィルターとも称される。
なお、ペーパーフィルターは、セルロースアセテートトウ等の合成繊維のトウよりも容易に生分解するという特徴を有する。
ペーパーフィルターを構成する濾材の紙として、上記の波形状の構造を有する紙を用いる場合、上記のペーパーフィルターの波形の谷から谷まで、又は陵から陵までの平均距離は、特に限定されないが、通常0.5mm以上、好ましくは1.0mm以上、また、通常5.0mm以下、好ましくは4.0mm以下である。
また、上記のペーパーフィルターの波形の谷の平均深さは、特に限定されないが、通常0.1mm以上、好ましくは0.2mm以上、また、通常1.2mm以下、好ましくは1.0mm以下である。
原料シートの厚さは、特に限定されないが、通常20μm以上、好ましくは25μm以上、より好ましくは30μm以上、また、通常140μm以下、好ましくは130μm以下、より好ましくは120μm以下である。
原料シートの坪量は、特に限定されないが、通常20gsm以上、好ましくは25gsm以上、また、通常120gsm以下、好ましくは80gsm以下、より好ましくは45gsm以下である。
なお、坪量は、前記のパルプの含有量と填料の含有量を調整したり、前記湿式抄紙機の処理条件を調整したりすることで調整可能である。
本実施形態における濾材は、フェノール濾過能を有するゲル状添加剤(以下、単に「ゲル状添加剤」と称することがある。)を含有する。ゲル状添加剤を濾材に添加することにより、フェノール濾過能を有する添加剤が液状である場合よりも良好に液体の漏出を抑制することができる。また、濾材がこのゲル状添加剤を含有することにより、フィルターを通過する煙、エアロゾル等からフェノールが除去され、香味を改善できる。
(I):ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、リン脂質、ヒドロキシ脂肪酸、及びハイエルシン菜種極度硬化油からなる群より選択される2種以上の化合物(以下、「成分(A)」ともいう。)を含有する。
(II):成分(A)のうち1種以上が、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、及びリン脂質からなる群より選択されるフェノール濾過能を有する成分である。
なお、1分子あたりの脂肪酸エステル結合の数は、特に限定されず、1分子中水酸基を2つ以上残すような数であってよく、水酸基を1つ残すような数であってよく、水酸基全てが脂肪酸エステル化するような数であってもよい。
具体的な脂肪酸としては、酢酸、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘン酸、ウンデセン酸、パルミトレイン酸、オレイン酸、リノール酸、リノレイン酸、ドコサヘキサエン酸、エイコサペンタエン酸等が挙げられる。
具体的なリン脂質としては、レシチン、特に大豆レシチン、卵レシチン等が挙げられる。
また、本実施形態の好適な一態様において、フェノール濾過能を有する成分それ自体は、大気圧及び25℃の条件下で液体である(以下、大気圧及び25℃の条件下において液体であるフェノール濾過能を有する成分を「フェノール濾過能を有する液体」と称することがある。)。
本実施形態においては、2種以上の成分(A)のうち、1種以上がゲル化剤として作用し、他の成分(A)をゲル化する化合物であることが好ましい。すなわち、2種以上の成分(A)は、親和性が高く、水素結合、ファンデルワールス力、静電相互作用、π-π相互作用等の分子間相互作用を生じるものであることが好ましい。かかる分子間相互作用に起因して分子が会合して三次元網目構造が形成され、ゲル化が生じることで、液体の漏出を抑制することが可能となる。このような成分(A)の組み合わせとしては、例えば、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール脂肪酸エステル、及びグリセリン脂肪酸エステルのようなオキシアルキレン系ポリマーと、ステアリン酸、ミリスチン酸、12-ヒドロキシステアリン酸、ハイエルシン菜種極度硬化油などといった加熱により融解する成分(例えば、融点50℃~100℃程度のもの)の組み合わせが挙げられる。また、グリセリンベヘン酸エステル等のグリセリン脂肪酸エステル、ポリグリセリンオクタステアリン酸エステル等のポリグリセリン脂肪酸エステルといった増粘剤又はゲル化剤として使用される成分を、グリセリン脂肪酸エステル、脂肪酸、脂肪酸エステル等のオイルと組み合わせて用いることも好ましい。
濾材は、生分解性を有する素材及びゲル状添加剤に加え、活性炭、ゼラチン等の破砕可能な外殻を含む破砕可能な添加剤放出容器(当該技術分野では「カプセル」とも呼ばれる。)を含んでいてもよい。カプセルは、香味吸引物品のユーザにより使用前、使用中、又は使用後に破壊されると、カプセルに含まれる添加剤を放出し、次に、該添加剤は、香味吸引物品を使用する間は香味吸引物品を通過する気流に一部又は全部が移行され、使用後においては濾材へ移行される。
本実施形態のフィルターは、濾材を巻装する巻取紙を有する。フィルターがマルチセグメントフィルターである場合、巻取紙は、これらの2以上のセグメントを併せて巻装することが好ましい。一方、2以上のセグメントを個別に巻取紙で巻装する場合は、成形紙によって複数のフィルターセグメントを固定してもよい。成形紙の材料、厚さ、秤量等は、特に限定されず、巻取紙と同様の紙を採用することができる。
巻取紙の態様は、特に限定されず、一列以上の接着剤を含む継ぎ目を含んでいてよい。該接着剤は、ホットメルト接着剤を含んでいてよい。また、該接着剤は、ポリビニルアルコールを含み得る。
巻取紙の厚さは、特に限定されず、通常20μm以上、好ましくは30μm以上、また、通常140μm以下、好ましくは130μm以下、より好ましくは120μm以下である。
巻取紙の坪量は、特に限定されず、通常20gsm以上、好ましくは22gsm以上、より好ましくは23gsm以上、また、通常100gsm以下、好ましくは95gsm以下、より好ましくは90gsm以下である。
撥液層を形成する材料は、1種単独で用いてもよく、2種以上を任意の組み合わせ及び比率で併用してもよい。
無機酸化物としては、シリカ、アルミナ等が挙げられる。
例えば、撥液層を形成する材料としてデンプン及び/又はアルミニウムを用いる場合、ゲル状添加剤に含まれるフェノール濾過能を有する液体は、ジグリセリン、ソルビタンモノ脂肪酸エステル、ソルビタンジ脂肪酸エステル、グリセリンモノ脂肪酸エステル、ポリグリセリン脂肪酸エステル等のうち、ポリプロピレングリコールグリセリルエーテルよりも表面張力の大きい化合物であることが好ましい。表面張力が大きいフェノール濾過能を有する液体は、巻取紙の表面上で濡れ広がりにくい傾向があり、濾材から液体が漏出することを抑制できるためである。
撥液層の平均厚さとしては、5μm以上30μm以下を挙げることができる。また、基材の表面上に撥液層を設ける場合は、基材の厚さに対する撥液層の厚さの比が、0.01以上1.0以下程度であるものを用いることができる。
また、撥液層を形成する材料を含むコート剤の塗布、蒸着等により撥液層を形成する場合は、撥液層が上記厚さとなるようコート剤の塗布量を適宜調整すればよい。撥液性や製造適性に問題がない限りは、製造費用の観点からより少量の塗布が好ましい。ただし、未塗布の領域が存在すると、そこから液体が漏出する虞があるため、基材の表面全域にわたって撥液層を形成することが好ましい。
本実施形態のフィルターは、フェノールを十分除去することができる。そのフェノール除去性能は、下記式(i)で表されるフェノール濾過能により評価することができる。
フェノール濾過能=DPR1/DPR0 (i)
DPR1:前記フィルターを用いて喫煙試験を行った場合の、該フィルターを通過するたばこ煙中のフェノール量を、該フィルターを通過するたばこ煙中粒状物質の量で除した値。
DPR0:前記フェノール濾過能を有するゲル状添加剤を含まない以外は前記フィルターと同構成の基準フィルターを用いて喫煙試験を行った場合の、該基準フィルターを通過するたばこ煙中のフェノール量を、該基準フィルターを通過するたばこ煙中粒状物質の量で除した値。
(1)本実施形態に係るフィルター(評価対象フィルター)とたばこロッドとをチップペーパーにより連結し、シガレットサンプルを準備する。
(2)自動喫煙機(例えば、Cerulean社製SM410)によりシガレットサンプルの自動喫煙を行い、たばこ煙中粒状物質(TPM)をガラス繊維フィルター(例えば、ケンブリッジフィルタ「Borgwaldt 44mmφ」)で捕集する。なお、自動喫煙の条件としては、例えば吸煙容量17.5mL/秒、吸煙時間2秒/パフ、吸煙頻度1パフ/分、吸殻長35mmの条件を採用する。
(3)喫煙前後のガラス繊維フィルターの質量差を捕集したTPM量として求める。
(4)捕集後のガラス繊維フィルターからフェノールをtert-ブチルメチルエーテルのような抽出溶媒で抽出する。抽出液をガスクロマトグラフ質量分析(GC-MSD)により分析することで、たばこ煙中のフェノールの量を求める。GC-MSDには、GCとして例えばAgilent Technologies Inc.製Agilent G7890Aを、MSDとして例えばAgilent Technologies Inc.製Agilent_5795Cを用いることができる。
(5)たばこ煙中のフェノール量をTPM量で除することで、1回の測定におけるフェノール濾過能を得る。
(6)(1)~(5)を3回行い、(5)で得られたフェノール濾過能の平均を、DPR1とする。
(7)本実施形態に係るフィルターに変えて、フェノール濾過能を有するゲル状添加剤を含まない以外は本実施形態に係るフィルターと同構成の基準フィルターを用いる以外は、上記(1)~(6)と同様にして得られたフェノール濾過能の平均を、DPR0とする。
(8)上記(6)で得られたDPR1を上記(7)で得られたDPR0で除することにより、フェノール濾過能を算出する。
ただし、上記ステップでは、1つのガラス繊維フィルターに捕集されるたばこ煙中粒状物質は、シガレットサンプル1本分であってもよく、同種のシガレットサンプル複数本分であってもよく、例えば、2本分である。
フィルターの製造方法は、特に限定されず、公知の方法で製造することができる。例えば、フィルターがペーパーフィルターである場合、木材パルプを抄紙して得られる紙を用いてフィルターロッドに成形する方法により製造することができる。具体的には、例えば、抄紙して得られた紙にクレープ処理等を施すことにより紙に波形状のしわを付ける工程、得られた波形構造を有する紙を集結させて濾材を作製する工程、得られた濾材を巻取紙で巻装してロッド状の長尺フィルターを作製する工程、及びこのロッド状の長尺フィルターを所望の長さに切断する工程により、ペーパーフィルターを製造することができる。
ゲル状添加剤は、任意の段階で濾材に添加することができる。例えば、紙に波形状のしわを付ける工程後、ロッド状の長尺フィルターを作製する工程前であってよく、ロッド状の長尺フィルターを作製する工程後であってもよい。
或いは、完全にゲル化する前に2種以上の成分(A)を含む混合物を濾材に添加し、その後、降温して1分以上1時間以下の時間保持することで、ゲル化を完了させてもよい。
或いは、ゲル状添加剤を添加前に加熱し、ゲル状添加剤に流動性を持たせた後に濾材に添加してもよい。
本発明の第2の実施形態は、巻紙で巻装されたたばこロッドと、本発明の第1の実施形態に係るフィルターと、前記たばこロッドと前記フィルターとを接続するチップペーパーとを備える香味吸引物品である。
たばこロッドは、公知の態様であれば特に限定されないが、通常、たばこ充填物を巻紙で巻装してなる態様である。たばこ充填物としては、特に限定されず、たばこ刻、再構成たばこシート等公知のものを用いることができる。なお、本明細書において、巻紙とは、たばこ充填物を巻装する紙を指し、濾材を巻装する紙である巻取紙とは区別される。
また、香味吸引物品が非燃焼加熱式香味吸引物品である場合、たばこ充填剤はエアロゾル基材を含んでもよい。エアロゾル基材は、加熱されることによりエアロゾルを生成する基材であり、グリセリン、プロピレングリコール、及びこれらの混合物が例示される。
また、巻紙の少なくとも一部に、本発明の第1の実施形態に係るフィルターの巻取紙が有していてもよい撥液層と同様の撥液層が設けられていてもよい。
前記たばこロッドと前記フィルターとを接続するチップペーパーの材料も、特に限定されず、公知のものを用いることができる。また、チップペーパーは、炭酸カルシウム等の充填剤等を含んでいてよい。
また、チップペーパーの少なくとも一部に、本発明の第1の実施形態に係るフィルターの巻取紙が有していてもよい撥液層と同様の撥液層が設けられていてもよい。
具体的には、「*」の付された一つのフィルターセグメントにゲル状添加剤が添加されている態様が好ましく、吸口側の端部を構成するフィルターセグメントにゲル状添加剤が添加されている態様も好ましい(図2)。また、フィルターセグメントが3つ以上ある場合は、たばこロッドに接するものではなく、吸口側の端部を構成するものでもないフィルターセグメント、つまり軸方向の中程を構成するフィルターセグメントのみにゲル状添加剤が添加されている態様(図3)も挙げられる。
ベンチレーション孔の位置については、ゲル状添加剤を含有するフィルターのたばこロッド側の端から、たばこロッド側に向かって少なくとも2mm離れた場所に配置されることが好ましい。そうすることによって、香味の向上が見込める。また、液体の漏出を防ぐ観点から、チップペーパーのうち、ゲル状添加剤を含有するフィルターを巻装している領域、及び2つのフィルターセグメントの間に位置する領域にベンチレーション孔が存在しないことが好ましい。
香味吸引物品を使用者へ提供する際は、香味吸引物品をパッケージに充填して香味吸引物品パッケージとすることが通常である。しかるに、本発明の第3の実施形態は、本発明の第2の実施形態に係る香味吸引物品が内包紙により内包された香味吸引物品パッケージであって、前記香味吸引物品が、前記内包紙により直接包装されており、少なくとも前記内包紙の前記香味吸引物品のフィルターと接する領域に撥液層が設けられている。特に、前記内包紙は、フィルターの吸口側の端面と接する部分に撥液層が設けられていることが好ましい。
パッケージの好ましい体積の範囲については、特に限定されず、例えば30cm3以上150cm3以下である。
パッケージに充填される香味吸引物品の本数については、通常20本であるが、パッケージの形状や大きさにより、適宜変更してもよい。
巻取紙が基材及び基材の表面上に配置された撥液層を有する場合、巻取紙は、撥液層を形成する材料を含むコート剤を、塗布、蒸着等の手段により基材表面に積層したものであってもよい。基材としては、特に限定されず、巻取紙に用いられる公知の紙、ポリマー繊維等により構成される不織布、撥液紙等が挙げられる。
内包紙に設けられている撥液層を形成する材料としては、本発明の第1の実施形態に係るフィルターの巻取紙が有していてもよい撥液層を形成する材料が挙げられ、その好ましい態様も同様である。また、撥液層が撥液紙である態様も好ましい。なお、フィルターの巻取紙が撥液層を備える場合、当該撥液層と内包紙が備える撥液層とは、同じ材料により形成された層であってもよく、互いに異なる材料により形成された層であってもよい。
温度22℃、湿度60%RHの室内で、マイクロシリンジを用いてフェノール濾過能を有する液体10mgを試験素材に滴下し、30分後の液滴の広がり面積を測定した。試験には、フェノール濾過能を有する液体としてポリプロピレングリコールグリセリルエーテル(PPG-GE、重量平均分子量4,000)及びジグリセリンを用いた。また、試験素材としては、巻取紙用普通紙、市販で入手可能なデンプンコート紙、フッ素樹脂(パーフルオロアルキル基を含有するフッ素樹脂)コート紙、グラシン紙(よし与工房製)、アルミホイル(三菱アルミニウム製)、ポリプロピレンフィルム(生産日本社製)、ポリエチレンコート紙(福助工業製)、パラフィンコート紙(コジマ正直堂本舗製)、シリコーンコート紙(日本製紙クレシア製)、セルロースナノファイバーフィルム(中越パルプ工業製)、ニトロセルロースコート紙、エチルセルロースコート紙、アクリル樹脂コート紙、ポリビニルアルコールコート紙、及びアラビアガムコート紙を用いた。なお、滴下直後から液滴は試験素材を広がったが、普通紙を除いていずれの条件においても30分後には液滴の広がりは安定していた。
表1、図4、5から、撥液性を有する層を有する試験素材は液体の広がりが大きく抑制されることがわかる。
コルク地風の印刷がされたチップペーパーの印刷面に、後述するフェノール濾過能を有する液体及び公知のフェノール捕捉材であるトリアセチンを、それぞれ10mgずつマイクロシリンジを用いて滴下し、1分経過後に日本製紙クレシア株式会社製紙ワイパー「キムワイプS-200」を用いて液体をふき取った後のインク落ちの程度を、以下に示すA~Dの4段階で評価した。結果を以下の表2に示す。
A:視認できるインク落ちがほとんどなく、外観は損なわれていない
B:わずかにインク落ちがあるが、外観はほとんど損なわれていない
C:インク落ちがあり、外観が損なわれている
D:大きなインク落ちがあり、外観が著しく損なわれている
(シガレットサンプルの作製)
長さ27mm、直径7.7mmのペーパーフィルターを用意した。具体的には、まず、波形状のしわを付けた紙(坪量40g/m2)を、一端から他端まで各々が延びた複数の空気流路を形成するように畳み、巻取紙用普通紙で巻装後、長さ120mmで切断して、フィルターロッドを作製した。なお、フィルターロッドの通気抵抗を400mmH2O、フィルター直径を7.7mmφに調整した。このフィルターロッドを長さ27mmにカットしたものを、ゲル状添加剤無添加の比較例1のペーパーフィルターとした。
実施例1~8及び比較例1の各シガレットサンプルに対し、以下の条件で喫煙試験及び分析を行った。
自動喫煙機(Cerulean社製SM410)を用いて、吸煙容量17.5mL/秒、吸煙時間2秒/パフ、吸煙頻度1パフ/分、吸殻長35mmの条件でシガレットサンプルの自動喫煙を行い、たばこ煙中粒状物質(TPM)をケンブリッジフィルタ(Borgwaldt 44mmφ)で捕集した。TPM量は、喫煙前後のケンブリッジフィルタの質量差により測定した。その後、スクリュー管瓶に入れた下記表4に示すフェノール抽出溶媒10mLにケンブリッジフィルタを浸けて振盪し、分析試料を得た。得られた分析試料1μLをマイクロシリンジで採取し、ガスクロマトグラフ質量分析(GC-MSD:Gas Chromatography-Mass Selective Detector)にて分析した。GCとしてAgilent Technologies Inc.製Agilent G7890Aを用い、MSDとしてAgilent Technologies Inc.製Agilent_5795Cを用いた。
ゲル状添加剤を添加したシガレットの香味を官能評価により評価した。
具体的には、香味評価の訓練を受けたパネラー3人が、上記<フェノール濾過能の試験>において作製した比較例1及び実施例1、2、4~7のシガレットサンプルを喫煙し、各実施例のシガレットサンプルの香味(刺激)を下記採点基準に基づいて評価した。3人のパネラーの点数を平均し、小数点以下一桁を四捨五入して各シガレットサンプルの官能評価のスコアとした。評価結果を表6に示す。また、フェノール濾過能と香味の官能評価のスコアとの関係を図7に示す。
1:刺激を感じなかった。
2:比較例1のシガレットサンプルと比較して刺激がかなり低減していた
3:比較例1のシガレットサンプルと比較して刺激が低減していた
4:比較例1のシガレットサンプルと比較して刺激がやや低減していた
5:比較例1のシガレットサンプルと同等の刺激を感じた
2 フィルター濾材
4 巻取紙
5 成型紙
6 チップペーパー
7 フィルター
Claims (17)
- 香味吸引物品用のフィルターであって、
生分解性を有する素材を含む濾材と、前記濾材を巻装する巻取紙とを有し、
前記濾材が、フェノール濾過能を有するゲル状添加剤を含有する、フィルター。 - 前記フェノール濾過能を有するゲル状添加剤が、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、リン脂質、ヒドロキシ脂肪酸、及びハイエルシン菜種極度硬化油からなる群より選択される2種以上の化合物を含有し、
前記2種以上の化合物うち1種以上が、ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリエチレングリコールソルビタン脂肪酸エステル、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、プロピレングリコール、ジグリセリン、カプリリルグリコール、プロピレングリコール脂肪酸エステル、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ショ糖脂肪酸エステル、クエン酸トリエチル、脂肪酸、脂肪酸アルキルエステル、及びリン脂質からなる群より選択されるフェノール濾過能を有する成分である、請求項1に記載のフィルター。 - 前記ポリプロピレングリコールの重量平均分子量が2,000以上4,000以下であり、前記ポリプロピレングリコールグリセリルエーテルの重量平均分子量が3,000以上4,000以下である、請求項2に記載のフィルター。
- 前記フェノール濾過能を有する成分が、ポリプロピレングリコールグリセリルエーテル、ポリグリセリン脂肪酸エステル、グリセリン脂肪酸エステル、脂肪酸、及び脂肪酸アルキルエステルからなる群より選択される1種以上である、請求項2に記載のフィルター。
- 前記巻取紙は、前記濾材と接する領域に撥液層を備える、請求項1~4のいずれか1項に記載のフィルター。
- 前記フェノール濾過能を有する成分の前記撥液層に対する広がり面積が、35mm2以下である、請求項5に記載のフィルター。
- 前記巻取紙は、さらに基材を備え、
前記撥液層が、前記基材の表面上に配置されている、請求項5又は6に記載のフィルター。 - 前記撥液層が、デンプン、ポリビニルアルコール、アクリル樹脂、フッ素樹脂、アルミニウム、ポリプロピレン、ポリエチレン、パラフィン、シリコーン、セルロースナノファイバー、エチルセルロース、アラビアガム、及びニトロセルロースからなる群より選択される1種以上を含有する、請求項5~7のいずれか1項に記載のフィルター。
- 前記撥液層が、エチルセルロース、アクリル樹脂、パラフィン、ポリエチレン、ポリプロピレン、フッ素樹脂、及びシリコーンからなる群より選択される1種以上を含む、請求項5~7いずれか1項に記載のフィルター。
- 前記撥液層が、撥液紙である、請求項5~7のいずれか1項に記載のフィルター。
- 下記式(i)で表されるフェノール濾過能が、0.83以下である、請求項1~10のいずれか1項に記載のフィルター。
フェノール濾過能=DPR1/DPR0 (i)
DPR1:前記フィルターを用いて喫煙試験を行った場合の、該フィルターを通過するたばこ煙中のフェノール量を、該フィルターを通過するたばこ煙中粒状物質の量で除した値。
DPR0:前記フェノール濾過能を有するゲル状添加剤を含まない以外は前記フィルターと同構成の基準フィルターを用いて喫煙試験を行った場合の、該基準フィルターを通過するたばこ煙中のフェノール量を、該基準フィルターを通過するたばこ煙中粒状物質の量で除した値。 - 巻紙で巻装されたたばこロッドと、
請求項1~11のいずれか1項に記載のフィルターと、
前記たばこロッドと前記フィルターとを接続するチップペーパーと、
を備える香味吸引物品。 - 前記巻紙及び前記チップペーパーの少なくとも一方は、着色部を有する、請求項12に記載の香味吸引物品。
- 香味吸引物品が内包紙により内包された香味吸引物品パッケージであって、
前記香味吸引物品が、請求項12又は13に記載の香味吸引物品であり、
前記香味吸引物品が、前記内包紙により直接包装されており、
少なくとも前記内包紙の前記フィルターと接する領域に、撥液層が設けられている、香味吸引物品パッケージ。 - 前記内包紙に設けられた前記撥液層が、デンプン、ポリビニルアルコール、アクリル樹脂、フッ素樹脂、アルミニウム、ポリプロピレン、ポリエチレン、パラフィン、シリコーン、セルロースナノファイバー、エチルセルロース、アラビアガム、及びニトロセルロースからなる群より選択される1種以上を含有する、請求項14に記載の香味吸引物品パッケージ。
- 前記内包紙に設けられた前記撥液層が、エチルセルロース、アクリル樹脂、パラフィン、ポリエチレン、ポリプロピレン、フッ素樹脂、及びシリコーンからなる群より選択される1種以上を含む、請求項14に記載の香味吸引物品パッケージ。
- 前記内包紙に設けられた前記撥液層が、撥液紙である、請求項14に記載の香味吸引物品パッケージ。
Priority Applications (2)
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JP2023567773A JPWO2023112885A1 (ja) | 2021-12-13 | 2022-12-12 | |
EP22907409.1A EP4449902A1 (en) | 2021-12-13 | 2022-12-12 | Filter to which gelled additive is added, flavor inhalation article provided with said filter, and flavor inhalation article package |
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JP2021201388 | 2021-12-13 | ||
JP2021-201388 | 2021-12-13 |
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WO2023112885A1 true WO2023112885A1 (ja) | 2023-06-22 |
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PCT/JP2022/045636 WO2023112885A1 (ja) | 2021-12-13 | 2022-12-12 | ゲル状添加剤を添加したフィルター、該フィルターを備える香味吸引物品、及び香味吸引物品パッケージ |
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EP (1) | EP4449902A1 (ja) |
JP (1) | JPWO2023112885A1 (ja) |
WO (1) | WO2023112885A1 (ja) |
Citations (8)
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JP3910175B2 (ja) * | 2001-10-30 | 2007-04-25 | 日本たばこ産業株式会社 | シガレット用フィルターおよびフィルター付きシガレット |
CN102048239A (zh) * | 2009-11-05 | 2011-05-11 | 刘江鸿 | 带有卫生保护结构的香烟及其制作方法 |
WO2013021863A1 (ja) * | 2011-08-05 | 2013-02-14 | 日本たばこ産業株式会社 | シガレット |
CN106690415A (zh) * | 2017-03-28 | 2017-05-24 | 云南巴菰生物科技有限公司 | 一种能够降低卷烟主流烟气温度的卷烟滤棒 |
WO2018008608A1 (ja) | 2016-07-04 | 2018-01-11 | 日本たばこ産業株式会社 | 吸着剤、その吸着剤を有する喫煙物品用フィルター、およびその喫煙物品用フィルターを有する喫煙物品 |
WO2019149742A1 (en) | 2018-02-01 | 2019-08-08 | Jt International S.A. | Biodegradable filter with improved taste |
JP2020036534A (ja) * | 2016-11-30 | 2020-03-12 | 日本たばこ産業株式会社 | フィルター付シガレット |
WO2021001961A1 (ja) | 2019-07-03 | 2021-01-07 | 日本たばこ産業株式会社 | 香味吸引物品用部材、香味吸引物品、香味吸引物品用フェノール捕捉剤及び香味吸引物品用部材の製造方法 |
-
2022
- 2022-12-12 JP JP2023567773A patent/JPWO2023112885A1/ja active Pending
- 2022-12-12 EP EP22907409.1A patent/EP4449902A1/en active Pending
- 2022-12-12 WO PCT/JP2022/045636 patent/WO2023112885A1/ja active Application Filing
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JP3910175B2 (ja) * | 2001-10-30 | 2007-04-25 | 日本たばこ産業株式会社 | シガレット用フィルターおよびフィルター付きシガレット |
CN102048239A (zh) * | 2009-11-05 | 2011-05-11 | 刘江鸿 | 带有卫生保护结构的香烟及其制作方法 |
WO2013021863A1 (ja) * | 2011-08-05 | 2013-02-14 | 日本たばこ産業株式会社 | シガレット |
WO2018008608A1 (ja) | 2016-07-04 | 2018-01-11 | 日本たばこ産業株式会社 | 吸着剤、その吸着剤を有する喫煙物品用フィルター、およびその喫煙物品用フィルターを有する喫煙物品 |
JP2020036534A (ja) * | 2016-11-30 | 2020-03-12 | 日本たばこ産業株式会社 | フィルター付シガレット |
CN106690415A (zh) * | 2017-03-28 | 2017-05-24 | 云南巴菰生物科技有限公司 | 一种能够降低卷烟主流烟气温度的卷烟滤棒 |
WO2019149742A1 (en) | 2018-02-01 | 2019-08-08 | Jt International S.A. | Biodegradable filter with improved taste |
WO2021001961A1 (ja) | 2019-07-03 | 2021-01-07 | 日本たばこ産業株式会社 | 香味吸引物品用部材、香味吸引物品、香味吸引物品用フェノール捕捉剤及び香味吸引物品用部材の製造方法 |
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EP4449902A1 (en) | 2024-10-23 |
JPWO2023112885A1 (ja) | 2023-06-22 |
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