US20200154759A1 - Coating composition for low ignition propensity cigarette paper, tobacco using same, and method for manufacturing low ignition propensity cigarette paper - Google Patents

Coating composition for low ignition propensity cigarette paper, tobacco using same, and method for manufacturing low ignition propensity cigarette paper Download PDF

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Publication number
US20200154759A1
US20200154759A1 US16/620,573 US201816620573A US2020154759A1 US 20200154759 A1 US20200154759 A1 US 20200154759A1 US 201816620573 A US201816620573 A US 201816620573A US 2020154759 A1 US2020154759 A1 US 2020154759A1
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United States
Prior art keywords
coating composition
cigarette
cigarette paper
coating
rpm
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US16/620,573
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English (en)
Inventor
Young Sin KIM
Moon-yong Lee
Han-Jae SHIN
Sung Eel CHO
Hyo-Min GWAK
Dong Hun Lee
Seok Jae Kim
Heung Jae LEE
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KT&G Corp
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KT&G Corp
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Application filed by KT&G Corp filed Critical KT&G Corp
Assigned to KT & G CORPORATION reassignment KT & G CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHO, SUNG EEL, GWAK, Hyo-Min, KIM, SEOK JAE, KIM, YOUNG SIN, LEE, DONG HUN, LEE, MOON-YONG, SHIN, HAN-JAE, LEE, HEUNG JAE
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/31—Gums
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes

Definitions

  • a coating composition for a low ignition propensity cigarette paper, a cigarette using the same, and a method for manufacturing a low ignition propensity cigarette paper are provided.
  • various kinds of leaf tobaccos are processed by blending them to the desired aroma and taste.
  • the processed tobacco leaves are then carved out to produce cut tobacco leaves, which are surrounded by a cigarette paper to produce a filter-less cigarette.
  • a filter is then attached to the filter-less cigarette as needed.
  • the cigarette paper may be made of flax, wood pulp, and the like, which is required to maintain the combustibility and the taste of the tobacco when the cigarette paper is burned.
  • the tobacco filter may include an activated carbon, a flavoring material, and the like, and may be composed of a mono-filter or a multi-filter, and the cigarette filter is surrounded by a cigarette filter wrapping paper.
  • the cut tobacco leaves and the cigarette filter are connected by a tipping paper, and the tipping paper may include fine holes.
  • the cigarette paper may be not only made to deliver a target tar and a target nicotine during smoking due to the appropriate porosity and combustibility, but may also be made to give a cigarette its unique smoking taste.
  • a low ignition propensity cigarette paper may include a band-shaped coating portion, and the coated band has a low porosity. Accordingly, when the combustion of the cigarette reaches the coated band, the amount of oxygen introduced into the tobacco cut leaves may decrease to extinguish the cigarette.
  • Korean Patent Application Publication No. 2013-0045157 discloses a coating composition for forming a coating portion of the low ignition propensity cigarette paper and a cigarette using the same.
  • the coating composition includes alpha starch, maltodextrin, ethanol, and water.
  • it may be less than 2 months to maintain the properties of the coating composition at 20° C. or more due to the inherent aging characteristics of the starch, and the service life may further be shortened because the aging occurs drastically when the coating composition is exposed to the low temperature.
  • such coating composition may reduce the low ignition performance at the high temperature drying, and it may be difficult to dry the coating composition coated on the cigarette paper at the room temperature drying.
  • such coating composition may have a large change in viscosity in a dynamic state such as rotation, such that a coating amount may decrease during coating, and the workability may decrease.
  • One embodiment of the present invention is to extend the service life and the expiration date of the coating composition in the low ignition propensity cigarette paper.
  • One embodiment of the present invention is to extend the viscosity retention period of time of the coating composition in the low ignition propensity cigarette paper at the room temperature and the low temperature conditions.
  • One embodiment of the present invention is to improve the dynamic viscosity retention rate of the coating composition in the low ignition propensity cigarette paper.
  • One embodiment of the present invention is to increase the amount of coating the coating composition on the low ignition propensity cigarette paper during the coating operation on the cigarette paper, and to maintain the coating amount constantly.
  • One embodiment of the present invention is to improve the productivity and the workability of the tobacco.
  • One embodiment of the present invention is to allow the room temperature drying of the coating composition in the low ignition propensity cigarette paper by improving the drying ability.
  • One embodiment of the present invention is to reduce the manufacturing cost of the low ignition propensity cigarette paper, and to shorten the manufacturing time.
  • the coating composition for the low ignition propensity cigarette paper according to an embodiment of the present invention includes 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water.
  • the viscosity of the coating composition for the low ignition propensity cigarette paper may be more than 100 cPs and less than 1000 cPs.
  • the dynamic viscosity retention rate may be 84% or more when the rotational speed of the coating composition for the low ignition propensity cigarette paper increases from about 20 rpm to 100 rpm.
  • a cigarette according to an embodiment of the present invention includes a cigarette column portion, and a low ignition propensity cigarette paper surrounding the cigarette column portion and including a coating portion formed by drying a coating composition, wherein the coating composition includes 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water.
  • the cigarette may further include a cigarette filter portion.
  • the cigarette filter portion may further include at least one of filter member.
  • the cigarette filter portion may include at least one of an adsorbent and a flavoring agent.
  • a method for manufacturing a low ignition propensity cigarette paper includes steps of preparing a coating composition, coating the coating composition on one side of a cigarette paper and then letting out the cigarette paper, and heating and drying the cigarette paper coated with the coating composition to form a band-shaped coating portion, thereby producing the low ignition propensity cigarette paper.
  • the coating composition includes 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water.
  • the step of preparing the coating composition may include a weighing step of measuring the weight of arabic gum, maltose, ethanol, and water, respectively, and a blending step of mixing arabic gum, maltose, ethanol, and water
  • the blending step may include a step of mixing the ethanol with the water to preparing a dispersion medium, the first dispersion step of dispersing the maltose in the dispersion medium, the second dispersion step of dispersing the arabic gum in the dispersion medium, the first homogenization step of rotating a composition made by the second dispersion step at the speed of 250 rpm to 350 rpm, and the second homogenization step of rotating a composition made by the first homogenization step at the speed of 150 rpm to 250 rpm while controlling the temperature of 40° C. or less.
  • the unit dispersion amount of maltose may be 10 g/L/min to 20 g/L/min, and the rotational speed may be 17000 rpm to 20000 rpm in the first dispersion step, and the unit dispersion amount of arabic gum may be 10 g/L/min to 20 g/L/min, and the rotational speed may be 17000 rpm to 20000 rpm in the second dispersion step.
  • the coating portion may include two or more portions, and the two or more portions may be spaced apart from each other.
  • a coating composition for a low ignition propensity cigarette paper according to an embodiment of the present invention, a cigarette using the same, and a method for manufacturing a low ignition propensity cigarette paper may extend the service life and the expiration date of the coating composition in the low ignition propensity cigarette paper, may extend the viscosity retention period of time of the coating composition in the low ignition propensity cigarette paper at the room temperature and the low temperature conditions, may improve the dynamic viscosity retention rate of the coating composition in the low ignition propensity cigarette paper, may increase the amount of coating the coating composition on the low ignition propensity cigarette paper during the coating operation on the cigarette paper, and to maintain the coating amount constantly, may improve the productivity and the workability of the tobacco, may allow the room temperature drying of the coating composition in the low ignition propensity cigarette paper by improving the drying ability, and may reduce the manufacturing cost of the low ignition propensity cigarette paper, and to shorten the manufacturing time.
  • FIG. 1 is a perspective view schematically showing a cigarette according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view schematically showing a cigarette according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view schematically showing a cigarette according to an embodiment of the present invention.
  • FIG. 4 is a graph showing a result of comparing the viscosity uniformity in the first and second homogenization steps with the viscosity uniformity before the homogenization step is performed in the manufacturing process of the coating composition according to Example 1.
  • the thickness is shown on an enlarged scale.
  • a portion of a layer, a film, a region, a plate, and the like is “on” another part, this includes not only another part is “directly on” but also other parts are in the middle thereof.
  • a part is “directly on” another part, there are no other parts in the middle thereof.
  • a portion of a layer, a film, a region, a plate, and the like is “below” another part, this includes not only another part is “directly below” but also other parts are in the middle thereof.
  • a part is “directly below” another part, there are no other parts in the middle thereof.
  • FIGS. 1 to 3 A cigarette paper and a cigarette according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 .
  • FIG. 1 is a perspective view schematically showing a cigarette according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view schematically showing a cigarette according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view schematically showing a cigarette according to an embodiment of the present invention.
  • a cigarette 1 includes a cigarette column portion 10 which is burned by a fire, and a cigarette filter portion 20 which filters cigarette smoke.
  • the cigarette column portion 10 may be surrounded by a cigarette paper 19
  • the cigarette filter portion 20 may be surrounded by a cigarette filter wrapping paper 28 .
  • the cigarette column portion 10 may be connected to the cigarette filter portion 20 by a tipping paper 29 .
  • the circumference of the cigarette 1 may be from about 5 mm to about 30 mm.
  • the cigarette filter portion 20 may be omitted.
  • the cigarette column portion 10 includes cut tobacco leaves 11 carved from the leaf tobacco processed by various methods.
  • the cigarette filter portion 21 may include the first filter portion 21 .
  • the first filter portion 21 may be formed of acetate tow, paper, or the like.
  • the cigarette filter portion 20 may be a multiple filter including two or more filter members.
  • the cigarette filter portion 20 may include the second filter portion 22 and the third filter portion 23 .
  • the cigarette filter portion 20 may include three filter members and four filter members.
  • the cigarette filter portion 20 may include an adsorbent, a flavoring agent, and the like.
  • the adsorbent may be an activated carbon, or the like
  • the flavoring agent may be an herbal flavor material, or the like.
  • the one or more filter elements in the multiple filter may include at least one of an adsorbent and a flavoring agent.
  • at least one of the second filter portion 22 and the third filter portion 23 may include at least one of an adsorbent and a flavoring agent.
  • the cigarette paper 19 includes one or more coating portions 18 .
  • the coating portions 18 may have a band-shape, but may have various shapes.
  • the number, thickness, and shape of the coating portions 18 may be variously modified, and the spacing of the plurality of coating portions 18 may also be variously modified.
  • the coating composition is coated on the cigarette paper 19 having a porosity of about 10 cu to about 100 cu, so that two bands per cigarette 1 which may have about 5 mm to about 10 mm of the width, respectively, may be disposed between 15 mm from the tip of the cigarette column portion 10 and 5 mm from the cigarette filter portion 20 .
  • the coating portions 18 may lower the porosity of the cigarette paper 19 . Accordingly, when the combustion of the cigarette reaches the coating portions 18 , the amount of oxygen introduced into the cigarette column portion 10 decreases, thereby extinguishing the cigarette 1 .
  • the cigarette paper 19 including the coating portions 18 is also referred to as a low ignition propensity cigarette paper.
  • the coating portions 18 are coated with a coating composition.
  • the porosity of the cigarette paper 19 may be about 10 cu to about 100 cu, and the porosity of the coating portions 18 may be about 3 cu to about 20 cu.
  • the thickness of the base paper of the cigarette paper may be about 30 ⁇ m to about 100 ⁇ m, and the basis weight of the base paper may be about 15 g/m 2 to about 80 g/m 2 .
  • the thickness of the coating portions 18 may be about 5 ⁇ m or less, and the basis weight of the coating portions 18 may be about 15 g/m 2 or less.
  • the weight ratio of the coating composition to the total weight of the cigarette paper 19 and the coating composition may be about 40% by weight or less. When the coating portions 18 have a band-shape, the mass of the coating composition per band may be about 2.5 mg or less.
  • the coating composition includes arabic gum, maltose, ethanol, and water.
  • Arabic gum may be prepared by drying and desalting the sap of the arabian gum tree.
  • Arabic gum may block the pores contained in the cigarette paper 19 to obstruct the oxygen supply, thereby allowing the low ignition performance of the coating composition.
  • Arabic gum may have a relatively low viscosity even at the high concentrations, and accordingly, it may be easier to control the concentration in the low viscosity state. Therefore, a coating composition having the low viscosity and high concentration characteristics may be prepared, and the combustion strength may be easily controlled by adjusting the coating concentration of the coating composition.
  • Arabic gum may have a large solubility in water, so that the dispersion stability of the coating composition may improve, thereby forming the coating portions 18 having the composition and concentration dispersed uniformly.
  • the coating composition including the arabic gum may have a higher drying speed at the higher temperature than the conventional coating composition. Therefore, the coating composition according to the embodiment may improve the workability of the coating process.
  • Arabic gum may reduce aging phenomena of the coating composition, which may extend the service life, the shelf life, the viscosity retention period of time, or the expiration date of the coating composition, compared to conventional coating compositions including alpha starch.
  • the dynamic viscosity retention rate in the dynamic situation in which a coating roller operates may be improved, and the viscosity change which may occur in the low temperature environment of about 2° C. may decrease greatly.
  • arabic gum is excellent in heat resistance, thereby maintaining the performance even at the high temperature, and an off-flavor generation during combustion in the drying process may be reduced.
  • Arabic gum may be included in an amount of about 10% to about 30% by weight based on the total coating composition.
  • the dispersion stability of the coating composition may improve and the drying speed may increase, so that the workability of the coating process may further improve, and the low viscosity retention period of time may be greatly extended, the viscosity retention rate may significantly improve, and the aging phenomena may decrease thereby extending the expiration date.
  • Maltose may block the pores contained in the cigarette paper 19 to obstruct the oxygen supply, thereby allowing the low ignition performance of the coating composition, similar to arabic gum. However, since the average size of maltose is smaller than the average size of arabic gum, maltose may block the fine pores which are relatively small in diameter or size.
  • Maltose may also effectively lower the aging rate of arabic gum and significantly delay the aging rate of the coating composition. Therefore, the viscosity retention period of time may be extended, the viscosity retention may improve, and the viscosity change may be minimized even when exposed to the low temperature of about 2° C., compared to the conventional coating composition containing maltodextrin.
  • maltose may be dissolved in ethanol. When maltose is used with ethanol, maltose may lower the viscosity of the coating composition, and may increase the bonding strength between the constituents of the coating composition.
  • the coating composition including maltose may have a higher drying rate at the high temperature than the conventional coating composition. Therefore, the coating composition according to the embodiment may improve the workability of the coating process.
  • Maltose may be included from about 25% to about 35% by weight based on the total coating composition. Within this range, the low viscosity maintenance period of time may be greatly extended, the viscosity retention may significantly improve, the aging phenomena may greatly decrease thereby extending the expiration date, and the workability of the coating process may improve.
  • Ethanol may increase the solid amount of the coating composition, and the viscosity of the coating composition may be controlled by adjusting the amount of ethanol.
  • ethanol may increase the affinity of the coating roller and the coating composition in the coating operation by lowering the surface tension of the coating composition. Accordingly, the coating amount may increase, and the coating amount may be kept constant, thereby improving the coating workability. The low ignition performance may also improve.
  • ethanol may improve the drying property of the coating composition and increase the drying speed at the high temperature, thereby enhancing the workability of the coating process, and reducing the phenomenon in which the strength weakens due to the absorption of water into the cigarette paper.
  • Ethanol may be used in an amount of about 15% to about 30% by weight based on the total coating composition. Within this range, the viscosity of the coating composition may be properly maintained, and the workability of the coating process may further improve to increase the productivity of tobacco. The low ignition performance of the cigarette may also further improve.
  • Water may be used to adjust the concentration of other constituents in the coating composition or the concentration of the coating composition. Water may also enhance the absorbency of the coating composition into the cigarette paper 19 .
  • Water may be used from about 10% to about 40% by weight relative to the total coating composition. Within this range, the concentration and viscosity of the coating composition may further be controlled easily.
  • the various effects caused by the coating composition may be more pronounced when all the constituents are mixed as compared to when each constituent of the coating composition is present alone.
  • the various effects described above may occur by combining each constituent, and synergistic effects may also occur by combining each constituent.
  • the coating composition for the low ignition propensity cigarette paper includes about 10 wt % to about 30 wt % arabic gum, about 25 wt % to about 35 wt % maltose, about 15 wt % to about 30 wt % ethanol, and about 10 wt % to about 40 wt % water.
  • the service life and the expiration date of the coating composition may be further extended, and the viscosity retention period of time of the coating composition may be significantly extended at the room temperature (about 25° C.) and the low temperature (about 2° C.) conditions.
  • the dynamic viscosity retention which indicates the viscosity retention of the coating composition when rotated by a rotational shaft at the predetermined rotational speed, may further improve.
  • the coating amount of the coating composition for the low ignition propensity cigarette paper may increase, the coating amount may be kept constant, and the drying property may improve to enhance the coating workability when coating the cigarette paper.
  • the productivity and workability of tobacco may also improve.
  • the coating composition may further include one or more of citric acid, tartaric acid, lactic acid, malic acid, and ascorbic acid. Such materials may reduce the rot and deterioration of the coating composition to prolong the service life or the shelf life of the coating composition.
  • the coating composition may further include one or more of sodium benzoate, sodium sorbate, a grapefruit seed extract, and a cinnamon extract. Such materials may reduce the rot and deterioration of the coating composition to prolong the service life or the shelf life of the coating composition. In addition, when such materials are used in combination with the above-mentioned materials such as citric acid, tartaric acid, lactic acid, malic acid, or ascorbic acid, the expiration date of the coating composition may further be delayed.
  • the coating composition may further include one or more of xanthan gum, guar gum, amylopectin, and starch ester.
  • xanthan gum, guar gum, amylopectin, ester starch and the like may subsidiarity lower the viscosity of the coating composition and improve the dispersion property of the constituents, thereby prolonging the service life of the coating composition.
  • the viscosity of the coating composition needs to be appropriately adjusted, and the viscosity of the coating composition for the low ignition propensity cigarette paper according to the embodiment may be about 100 cPs or more and may be less than about 1000 cPs.
  • the optical and the low ignition characteristics of the cigarette paper 19 may be degraded when the viscosity of the coating composition is too low.
  • the viscosity of the coating composition is less than about 100 cPs
  • the whiteness and the opacity of the cigarette paper 19 may decrease, and the rate of penetration of the coating composition into the cigarette paper, e.g. the diffusion coefficient, may increase, thereby reducing an amount of arabic gum and maltose remaining in the surface of the cigarette paper, and reducing the pore blocking ability or the low ignition performance.
  • the viscosity of the coating composition is less than about 100 cPs, the dynamic viscosity retention rate of the coating composition may significantly decrease.
  • the coating composition may be coated on the cigarette paper 19 by a rotating device such as a coating roller. If the viscosity changes under a dynamic condition such as the increase of the rotational speed, the coating portions 18 may be formed at an uneven concentration, thereby degrading the low ignition performance and deteriorating the process workability. Therefore, the coating may be stably performed only when the viscosity change of the coating composition in the dynamic state is minimized.
  • the dynamic viscosity retention rate may be lowered.
  • the dynamic viscosity retention rate of the coating composition may greatly decrease, which may result in the formation of the coating portions 18 having a non-uniform shape and a non-uniform concentration, and the degradation of the coating process workability.
  • the dynamic viscosity retention rate in case that the rotational speed of the coating composition increases from about 20 rpm to 100 rpm may be at least about 84%.
  • the diffusion coefficient in case that the rotational speed of the coating composition increases from about 20 rpm to 100 rpm may be about 0.15 or less.
  • the cigarette paper has a property that the strength weakens when the cigarette paper contacts with water. Therefore, after coating the conventional coating composition on a cigarette paper, a drying facility is used to remove moisture. In this case, the drying process may be mainly performed at the high temperature condition of about 200° C. or more, and as a result, the cost and time of cigarette production may increase, and the coating composition may deteriorate, thereby reducing the low ignition performance. In addition, the conventional coating composition may not be dried at the room temperature condition of about 25° C.
  • the drying property is excellent, and the drying rate at the high temperature condition may be relatively very fast compared to the drying rate of the conventional coating composition.
  • the coating composition according to the embodiment may be dried even at the room temperature condition. Thus, a separate drying facility may not be required, which may save the cost and time of the cigarette manufacture and keep the properties of the coating composition constant.
  • a method for manufacturing a low ignition propensity cigarette paper includes steps of preparing a coating composition, coating the coating composition on one side of a cigarette paper and then letting out the cigarette paper, and heating and drying the cigarette paper coated with the coating composition to form a band-shaped coating portion, thereby producing the low ignition propensity cigarette paper.
  • the coating composition includes 10% to 30% by weight of arabic gum, 25% to 35% by weight of maltose, 15% to 30% by weight of ethanol, and 10% to 40% by weight of water.
  • the step of preparing the coating composition is performed.
  • the step of preparing the coating composition may include a step of weighing constituents, a blending step, a step of checking the viscosity of the coating composition, and a step of letting out the coating composition.
  • the weighing step is a step of measuring the weight of each constituent that will constitute the coating composition. As the weight of arabic gum, maltose, and ethanol become greater than the weight of the water, the viscosity of the coating composition may increase. In addition, in case that a low ignition coating composition is used, the weight ratio of arabic gum, maltose, ethanol, water, and the like of the coating composition may be highly useful in order to exhibit the low ignition performance and simultaneously improve the productivity such as the drying property.
  • the blending step is a step of mixing constituents according to a predetermined mixing ratio.
  • the blending step may include a dispersion medium preparation step, the first dispersion step, the second dispersion step, the first homogenization step, and the second homogenization step.
  • the dispersion medium preparation step is to prepare a dispersion medium by mixing water with ethanol.
  • the temperature of the dispersion medium may be maintained at about 25° C. to about 35° C. Within this range, the influence of temperature which may occur during mixing may be minimized.
  • the first dispersion step is to disperse maltose while rotating the aforementioned dispersion medium.
  • the unit dispersion amount may be about 10 g/L/min to about 20 g/L/min, and the rotational speed of the dispersion medium may be about 17000 rpm to about 20000 rpm. Within this range, maltose may be effectively and uniformly dispersed in the dispersion medium.
  • the second dispersion step is to disperse arabic gum while rotating a composition which has undergone the first dispersion step.
  • the unit dispersion amount may be 10 g/L/min to about 20 g/L/min, and the rotational speed of the composition may be from about 17000 rpm to about 20000 rpm. Within this range, arabic gum may be effectively and uniformly dispersed in the composition.
  • the first homogenization step is to rotate a composition at the speed of about 250 rpm to about 350 rpm by using equipment such as a double cross-type impeller, so that the viscosity may be uniform in all parts of the composition which has undergone the second dispersion step.
  • arabic gum and maltose may be homogeneously dispersed in the dispersion medium, and the viscosity may become uniform.
  • the temperature of the composition may increase by the rotation.
  • the temperature of the composition which has undergone the first homogenization step lowers below about 40° C., and the composition is rotated at the speed of about 150 rpm to about 250 rpm by using equipment such as a homomixer.
  • arabic gum and maltose may be homogeneously dispersed in the dispersion medium, and the viscosity may become uniform.
  • a viscosity checking step and a step of letting out the coating composition is to finally check the viscosity uniformity in the coating composition through an inspection and then to let out the coating composition.
  • a coating composition is coated on the prepared cigarette paper, and the cigarette paper is let out.
  • the cigarette paper rolled up in the form of a roll may be supplied to the coating apparatus through a roller, and the coating composition may also be coated on the cigarette paper through a roller.
  • the cigarette paper coated with the coating composition is heated and dried thereby forming the coating portions 18 in a band-shape, and then a low ignition propensity cigarette paper is finally manufactured.
  • the heating may be processed by a separate heating device.
  • the number, thickness, and shape of the coating portions 18 may be variously modified, and the spacing of the plurality of coating portions 18 may also be variously modified.
  • Arabic gum, maltose, ethanol, and water are weighed according to a mixing ratio, respectively, and water is mixed with ethanol to prepare a dispersion medium, and the temperature of the dispersion medium is maintained at about 30° C. through heating or cooling.
  • Maltose is dispersed in various unit dispersion amounts while maintaining a rotational speed of about 18000 rpm by using an impeller in this dispersion medium, and then the viscosity is measured (the first dispersion step).
  • Arabic gum is then dispersed in various unit dispersion amounts while maintaining a rotational speed of about 18000 rpm (second dispersion step), and then the viscosity is measured.
  • the results are shown in Table 1.
  • the first The second dispersion amount dispersion step distribution step (g/L/min) (Maltose) (Arabic gum) 5 30 50 10 30 190 15 55 200 20 50 720 250 50 1610 300 80 2750 350 170 No dispersion 400 680 No dispersion
  • the viscosity of the composition is greater than 100 cPs and less than 1000 cPs.
  • Arabic gum, maltose, ethanol, and water are weighed according to a mixing ratio, respectively, and water is mixed with ethanol to prepare a dispersion medium, and the temperature of the dispersion medium is maintained at about 30° C. through heating or cooling.
  • Maltose is dispersed in this dispersion medium at a unit dispersion amount of about 15 g/L/min by using an impeller at a rotational speed of about 18000 rpm. Arabic gum is then dispersed at a unit dispersion of about 15 g/L/min at a rotational speed of about 18000 rpm. At this time, the temperature of the composition may rise by the rotation, and the temperature is controlled so as not to exceed about 45° C.
  • the composition is rotated at a speed of about 300 rpm by using a double cross-type impeller, so that the viscosity becomes uniform.
  • the temperature of the homogenized mixture is then lowered to about 30° C. and the composition is rotated at a speed of about 200 rpm by using a homomixer.
  • the constituents of the coating composition are arabic gum 15 wt %, maltose 35 wt %, ethanol 25 wt %, and water 25 wt %.
  • a coating composition is prepared in the same manner as in Example 1 except that the constituents of the coating composition are arabic gum 20 wt %, maltose 30 wt %, ethanol 25 wt %, and water 25 wt %.
  • a coating composition is prepared in the same manner as in Example 1 except that the constituents of the coating composition are arabic gum 25 wt %, maltose 25 wt %, ethanol 25 wt %, and water 25 wt %.
  • the coating composition prepared in Example 1 is coated on a cigarette paper having a porosity of 60 cu, so that two bands having a width of 7 mm, respectively, is formed on the cigarette paper at intervals of 20 mm.
  • the porosity of the band is 4.5 cu.
  • a cigarette is manufactured using the above prepared cigarette paper.
  • a coating composition is prepared in the same manner as in Example 1 except that the constituents of the coating composition are arabic gum 10 wt %, maltose 40 wt %, ethanol 25 wt %, and water 25 wt %.
  • Arabic gum, ethanol, and water are weighed according to a mixing ratio, respectively, and water is mixed with ethanol to prepare a dispersion medium, and the temperature of the dispersion medium is maintained at about 30° C. through heating or cooling.
  • Arabic gum is dispersed in this dispersion medium at a unit dispersion amount of about 32 g/L/min by using an impeller at a rotational speed of about 18000 rpm. At this time, the temperature of the composition may rise by the rotation, and the temperature is controlled so as not to exceed about 45° C.
  • the composition is rotated at a speed of about 300 rpm by using a double cross-type impeller, so that the viscosity becomes uniform.
  • the temperature of the homogenized mixture is then lowered to about 30° C. and the composition is rotated at a speed of about 200 rpm by using a homomixer.
  • the constituents of the coating composition are arabic gum 50 wt %, ethanol 25 wt %, and water 25 wt %.
  • Alpha starch, maltodextrin, ethanol, and water are weighed according to a mixing ratio, respectively, and water is mixed with ethanol to prepare a dispersion medium.
  • Maltodextrin and alpha starch are sequentially added to this dispersion medium at a rotational speed of about 30000 rpm.
  • the dispersion temperature is about 30° C.
  • the constituents of the coating composition are alpha starch 15 wt %, maltodextrin 35 wt %, ethanol 25 wt %, and water 25 wt %.
  • a coating composition is prepared in the same manner as in Example 1 except that the coating composition includes maltodextrin instead of maltose.
  • the constituents of the coating composition are arabic gum 15 wt %, maltodextrin 35 wt %, ethanol 25 wt %, and water 25 wt %.
  • a coating composition is prepared in the same manner as in Example 1, except that the coating composition includes sorbitol instead of maltose.
  • the constituents of the coating composition are arabic gum 15 wt %, sorbitol 35 wt %, ethanol 25 wt %, and water 25 wt %.
  • a coating composition is prepared in the same manner as in Example 1, except that the coating composition includes sucrose instead of maltose.
  • the constituents of the coating composition are arabic gum 15 wt %, sucrose 35 wt %, ethanol 25 wt %, and water 25 wt %.
  • the coating composition prepared in Comparative Example 2 is coated on a cigarette paper having a porosity of 60 cu, so that two bands having a width of 7 mm, respectively, is formed on the cigarette paper at intervals of 20 mm.
  • the porosity of the band is 3.1 cu.
  • a cigarette is manufactured using the above prepared cigarette paper.
  • a cigarette is manufactured in the same manner as in Comparative Example 7 except that the coating composition prepared in Comparative Example 4 is used.
  • a cigarette is manufactured in the same manner as in Comparative Example 7 except that the coating composition prepared in Comparative Example 5 is used.
  • a cigarette is manufactured in the same manner as in Comparative Example 7 except that the coating composition prepared in Comparative Example 6 is used.
  • Example 1 immediately after dispersing maltose and arabic gum in the dispersion medium, A sample of each position of the composition are taken, and then the viscosity is measured. A Sample of each position of the composition which has undergone the first homogenization step of rotating the composition at a speed of about 300 rpm is taken, and then the viscosity is measured. A Sample of each position of the composition which has undergone the second homogenization, which is to lower the temperature of the composition which has undergone the first homogenization step to about 30° C. and rotate at a speed of about 200 rpm, is taken, and then the viscosity is measured. A graph comparing each viscosity measurement result is shown in FIG. 4 .
  • the viscosity is measured by a total of 40 sampling. As a result, it may be seen that the viscosity of each position of the composition immediately after dispersion of maltose and arabic gum is more uniform than the first homogenization step and the second homogenization step.
  • Table 2 shows the results of measuring the viscosity change of the coating compositions of Example 1 and Comparative Example 3 over time at 25° C. and 20 rpm. At this time, the viscosity is measured by BrookField, Spindle No. 3 equipment.
  • the coating composition according to Comparative Example 3 is unable to measure and use after 3 months, because the viscosity after 3 months exceeds about 10000 cPs of the measurable range.
  • the coating composition according to Example 1 may be seen to maintain a constant viscosity of about 330 cPs for 10 months. Thus, it may be seen that the viscosity retention period of time, the service life and the expiration date of the coating composition according to Example 1 are significantly extended.
  • Table 3 shows the results of measuring the viscosity change of the coating compositions of Example 1 and Comparative Example 3 over time at 2° C. and 20 rpm.
  • the coating composition according to Comparative Example 3 is unable to measure and use over 4 hours, because the composition is deteriorated due to excessively high viscosity over 4 hours.
  • the coating composition according to the comparative example is deteriorated in a very fast time when exposed to the low temperature.
  • the coating composition according to Example 1 it may be seen that there is little change in viscosity over time, and there is also little change in viscosity even at a low temperature such as about 2° C., so that the viscosity is hardly affected by the storage temperature. Accordingly, it may be seen that the coating composition according to the embodiment has a greatly extended the expiration date, and the markedly improved viscosity retention rate and stability at a low temperature, compared with the conventional coating composition.
  • the diffusion coefficient is measured by placing an analytical sample between two chambers and supplying a different type of gas to each chamber, and then checking the gas concentration on each opposite chamber after passing through the sample. As the diffusion coefficient becomes smaller, the amount of gas passing through the sample becomes smaller, which means that the coating amount may be high and be kept constant when the sample is coated on cigarette paper.
  • the viscosity of the coating composition according to Comparative Example 1 measures 87 cPs
  • the viscosity of the coating composition according to Example 1 measures 210 cPs
  • the viscosity of the coating composition according to Example 2 measures 390 cPs
  • the viscosity of the coating composition according to Example 3 measures 750 cPs
  • the viscosity of the coating composition according to Comparative Example 2 measures 1050 cPs.
  • the viscosity decrease does not occur even if the coating roller rotates at a high speed. Since the amount of the coating composition transferring to the cigarette paper is kept constant, it may be expected that the coating workability improves.
  • the coating compositions according to Comparative Examples 1 and 2 have a relatively high diffusion coefficient, whereas the coating compositions according to Examples 1 to 3 may have a diffusion coefficient of about 0.15 or less.
  • the amount of coating on the cigarette paper will be relatively high from the low diffusion coefficient value of the coating composition according to the embodiment. It may be expected that the manufacturing time shortens, the manufacturing cost drops, and the productivity of tobacco improves.
  • the viscosity of the coating composition according to Comparative Example 3 measures 1950 cPs
  • the viscosity of the coating composition according to Comparative Example 4 measures 200 cPs
  • the viscosity of the coating composition according to Comparative Example 5 measures 250 cPs
  • the viscosity of the coating composition according to Example 3 measures measured at 750 cPs
  • the viscosity of the coating composition according to Comparative Example 2 measures 1050 cPs.
  • the coating composition according to Example 1 is 98% greatly better than the coating composition according to Comparative Examples 3 to 6. Accordingly, in the case of the coating composition according to the embodiment, the viscosity decrease does not occur even if the coating roller rotates at a high speed. Since the amount of the coating composition transferring to the cigarette paper is kept constant, it may be expected that the coating workability improves.
  • the coating composition according to the embodiment has a very excellent drying property. From this, it may be expected that the coating workability improves, the tobacco production cost drops, and the manufacturing time shortens.
  • the low ignition performance represents the extinguishing rate of cigarettes placed on 10 sheets of filter paper by an ISO-12863 Ignition Propensity measuring method.
  • the low ignition performance may not measure at a production rate of 4000 cpm or more under the room temperature drying condition, because the coating portions on the cigarette paper have not dried so that the cigarette production is impossible. However, the low ignition performance is still maintained in the case of the cigarette according to Example 4.
  • the high temperature drying process of 220° C. or higher is necessary in the case of the cigarette according to the comparative example.
  • the drying property of the coating composition is relatively excellent in the case of tobacco according to the embodiment, so that the room temperature drying process is feasible irrespective of the cigarette production rates.
  • the high temperature drying equipment is omitted in the production process, thereby improving the coating workability, reducing cigarette manufacturing costs, and saving manufacturing time.
  • the low ignition performance may not measure at a production rate of 4000 cpm or more under the room temperature drying condition, because the coating portions on the cigarette paper have not dried so that the cigarette production is impossible.
  • the diffusion coefficient increases slightly in the case of the cigarette according to Example 4.
  • the coating amount of the coating composition is kept constant under both the high temperature and room temperature conditions irrespective of the cigarette production rate.
  • the coating amount of the coating composition is kept constant under both the high temperature and room temperature conditions irrespective of the cigarette production rate.
  • the intermediate extinguishing rate represents the extinguishing rate of cigarettes placed on 10 sheets of filter paper by the ISO-12863 Ignition Propensity measuring method, and may be used in the same meaning as the above-described low ignition performance.
  • the coating workability is excellent and the productivity of the cigarette is high in the case of the cigarette according to the embodiment.
  • Intermediate extinguishing rate measures by the ISO-12863 Ignition Propensity measuring method.
  • Free-Air Self Extinguish measures the propensity to burn during smoking, similar to the ISO12863 method for intermediate extinguishing rate, but measures for an ignited cigarette in the air without other media in a smoldering state.
  • the cigarette according to Comparative Example 7 and the cigarette according to Example 4 show comparable levels of the intermediate extinguishing rate and the smoke constituents.
  • the FASE value of the cigarette according to Example 4 is lower than the FASE value of the cigarette according to Comparative Example 7. Accordingly, it may be seen that the cigarette according to the embodiment is less likely to be extinguished during smoking of the smoke than the cigarette according to the comparative example.
  • the diffusion coefficient is less than 0.4 and the intermediate extinguishing rate is 75% or more in the cases of arabic gum 10 wt % to 20 wt % and maltose 20 wt % to 40 wt %, and in the cases of arabic gum 30 wt % and maltose 20 wt % to 40 wt %.
  • the diffusion coefficient is relatively high due to the viscosity of the coating composition being too low or too high, and the intermediate extinguishing rate after coating is relatively low.
  • the diffusion coefficient is relatively low, thereby increasing the coating amount of the coating composition on the cigarette paper.
  • the coating workability may improve, and the low ignition performance may also improve.
  • the surface tension measures by the Sessile Drop method in which each coating composition makes droplets, and the droplets are placed on a solid surface, and then measures using the chane of the droplets.
  • the intermediate extinguishing rate is relatively high and the low ignition performance is excellent in the case of ethanol 15 wt % to 30 wt % in the coating composition.
  • the low ignition performance of the coating composition further improves, and the ethanol lowers the surface tension of the coating composition to an appropriate level, so that the affinity between the coating roller and the coating composition may increase.
  • the coating amount may increase and be kept constant, thereby improving the coating workability.

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  • Paper (AREA)
  • Paints Or Removers (AREA)
US16/620,573 2017-08-10 2018-08-07 Coating composition for low ignition propensity cigarette paper, tobacco using same, and method for manufacturing low ignition propensity cigarette paper Pending US20200154759A1 (en)

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PCT/KR2018/008977 WO2019031823A1 (ko) 2017-08-10 2018-08-07 저발화성 궐련지의 코팅 조성물, 이를 이용하는 담배, 그리고 저발화성 궐련지의 제조방법

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112411252A (zh) * 2020-11-05 2021-02-26 闫少辉 一种降低再造烟叶涂布液粘度的方法
CN113804326A (zh) * 2021-08-17 2021-12-17 云南中烟工业有限责任公司 一种确定卷烟纸搭口电烙铁温度的方法
US20230157351A1 (en) * 2020-05-29 2023-05-25 Kt&G Corporation Smoking article tipping paper coated with functional material and method of coating the tipping paper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102391291B1 (ko) * 2020-04-29 2022-04-26 주식회사 케이티앤지 저발화성 궐련지의 코팅 조성물, 이를 이용한 흡연 물품 및 저발화성 궐련지의 제조 방법
KR102668545B1 (ko) 2021-11-02 2024-05-22 주식회사 케이티앤지 흡연 물품 인식부를 포함하는 부류연 제거 장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150173416A1 (en) * 2012-09-05 2015-06-25 Delfortgroup Ag Cigarette Paper with Homogeneous Visual Impression

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044778A (en) * 1973-09-10 1977-08-30 Cohn Charles C Cigarettes
JPS61501546A (ja) 1983-01-24 1986-07-31 コ−ン，チャ−ルズ・シ− 巻きタバコ用紙の処理方法
US4453553A (en) * 1983-01-24 1984-06-12 Cohn Charles C Treatment of cigarette paper
BR0114651B1 (pt) 2001-08-13 2011-09-06 método de preparação de papel para cigarros auto-extintores.
US6779530B2 (en) * 2002-01-23 2004-08-24 Schweitzer-Mauduit International, Inc. Smoking articles with reduced ignition proclivity characteristics
RU47182U1 (ru) * 2004-09-26 2005-08-27 Александр Александрович Щепин Папиросная гильза
ES2393460B1 (es) * 2011-06-09 2013-10-18 Miquel Y Costas & Miquel, S.A. Composición para recubrimiento de una envoltura de papel de artículos de fumar
ES2402151B1 (es) * 2011-10-17 2014-02-28 Miquel Y Costas & Miquel, S.A. Procedimiento de impresión monocapa de papel para artículos de fumar.
KR101382650B1 (ko) 2011-10-25 2014-04-08 주식회사 케이티앤지 저발화성 궐련지의 코팅 조성물 및 이를 이용하는 담배
CN102493285B (zh) 2011-12-02 2013-10-30 牡丹江恒丰纸业股份有限公司 一种阻燃剂、具有阻燃带的卷烟纸及该卷烟纸的制备方法
CN102501570B (zh) 2011-12-02 2013-10-30 牡丹江恒丰纸业股份有限公司 一种生产具有阻燃带的卷烟纸的凹版印刷机及生产方法
RU2673603C1 (ru) * 2013-12-20 2018-11-28 Филип Моррис Продактс С.А. Курительное изделие, содержащее ароматические гранулы, имеющие проницаемый внешний слой
KR101534822B1 (ko) * 2014-03-17 2015-07-07 주식회사 케이티앤지 저발화성 궐련지의 코팅 조성물, 이를 포함하는 저발화성 궐련지 및 이를 포함하는 담배
CN104805730B (zh) 2015-04-07 2017-04-26 牡丹江恒丰纸业股份有限公司 卷烟纸降低一氧化碳的燃烧抑制组合物及施加、制造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150173416A1 (en) * 2012-09-05 2015-06-25 Delfortgroup Ag Cigarette Paper with Homogeneous Visual Impression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230157351A1 (en) * 2020-05-29 2023-05-25 Kt&G Corporation Smoking article tipping paper coated with functional material and method of coating the tipping paper
CN112411252A (zh) * 2020-11-05 2021-02-26 闫少辉 一种降低再造烟叶涂布液粘度的方法
CN113804326A (zh) * 2021-08-17 2021-12-17 云南中烟工业有限责任公司 一种确定卷烟纸搭口电烙铁温度的方法

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