Cigarette Paper Patents (Class 162/139)
  • Patent number: 9247769
    Abstract: Wrappers for smoking articles are disclosed having reduced ignition proclivity characteristics. The wrappers include discrete areas treated with a reduced ignition composition. In accordance with the present disclosure, the amount of burn promoting agents is controlled over the surface of the wrapper in order to, in one embodiment, increase the permeability of the treated areas.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: February 2, 2016
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Larry D. Snow, Francois Mongeon, Thomas A. Kraker
  • Patent number: 9115471
    Abstract: A method of producing a filter wrapper paper for a smoking article is described. The paper has a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: August 25, 2015
    Assignee: delfortgroup AG
    Inventors: Roland Zitturi, Dietmar Volgger, Dieter Möhring
  • Publication number: 20150141551
    Abstract: The present invention concerns aqueous slurries with improved rheo logical stability under increased temperature. The slurries comprise a calcium carbonate containing material and at least one comb polymer.
    Type: Application
    Filed: July 10, 2013
    Publication date: May 21, 2015
    Inventors: Samuel Rentsch, Matthias Buri, Patrick A.C. Gane
  • Publication number: 20150114414
    Abstract: A tobacco product wrapping, material comprising composite particles is described, the composite particles being obtainable by a method in which an aqueous suspension containing calcium carbonate particles is prepared, and a metal salt comprising an aluminum cation is added. The metal salt is able to form a basic metal component in the suspension; and has a solubility of greater than 9.0 mg/L in water, measured at the pH value of the prepared suspension and at a temperature of 20° C. The invention further relates to a method for the production of the tobacco product wrapping material, the use of such tobacco product wrapping material for the production of tobacco products, and the tobacco products produced with the tobacco product wrapping material.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventors: Thomas Fritzsching, Christoph Nover, Marijan Vucak
  • Patent number: 8992730
    Abstract: A method of manufacturing coated paper by applying a coating liquid to a strip-shaped web of paper to form a plurality of bands extending in the width direction of the web and spaced from each other in the longitudinal direction of the web includes: a coating step (S1) of applying the coating liquid to the web to form the bands with a coating band pitch narrower than a design band pitch defined as a standard for the coated paper; an aftertreatment step (S2), executed after the coating step, of drying the web; and a tension applying step (S3), executed after the aftertreatment step, of expanding the band pitch of the web by applying tension to the web to cause the band pitch of the web to approach the design band pitch.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: March 31, 2015
    Assignee: Japan Tobacco Inc.
    Inventor: Shinzo Kida
  • Publication number: 20150083026
    Abstract: The present invention concerns a process for preparing self-binding pigment particles from an aqueous suspension of a calcium carbonate containing material, wherein an anionic binder and at least one cationic polymer are mixed with the suspension.
    Type: Application
    Filed: April 29, 2013
    Publication date: March 26, 2015
    Inventors: Daniel Gantenbein, Patrick A.C. Gane, Joachim Schoelkopf, Maximilian Laufmann, Lars Andersson
  • Patent number: 8986502
    Abstract: A photodegradable paper including cellulose fibers and, if applicable, fillers, additives and/or other kind of fibers is described. Also described, is a paper particularly in the field of packaging, tissue papers or cigarettes.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: March 24, 2015
    Assignee: Solvay Acetow GmbH
    Inventors: Dirk Hölter, Wolfgang Koppe
  • Patent number: 8973589
    Abstract: An embossing apparatus for applying an embossing pattern to a wrapper for a smoking article, the embossing apparatus configured so as to act to at least partially minimize the reduction, in at least one direction, in the tensile strength of the wrapper resulting from the application of said embossing pattern.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 10, 2015
    Assignee: British American Tobacco (Investments) Limited
    Inventors: Karl Kaljura, Leonardo Nappi
  • Publication number: 20150059996
    Abstract: A method of producing a filter wrapper paper for a smoking article is described. The paper has a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: Roland Zitturi, Dietmar Volgger, Dieter Möhring
  • Patent number: 8944075
    Abstract: A smoking article such as a cigarette 1 has a wrapper in the form of a tube 5 that has lines of weakness 10 formed e.g. by laser cutting on the inside to define an array of visually discernable facets 12 on the outside.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: February 3, 2015
    Assignee: British American Tobacco (Investments) Limited
    Inventors: Steven Holford, Aaron McKenzie
  • Patent number: 8939155
    Abstract: A filter wrapper paper for a smoking article is shown, the paper having a content of long-fiber pulp of at least 30 wt %, preferably at least 40 wt %, relative to the pure fiber mass of the paper. The freeness of the long-fiber pulp as per ISO 5267, Schopper-Riegler method, is between 80° SR and 100° SR, preferably between 85° SR and 95° SR. The filter wrapper paper has a filler content of less than 10 wt %, preferably less than 8 wt %, and especially preferably less than 6 wt % relative to the total mass of the paper and is impregnated with a material that is suitable for forming an aqueous composition, more particularly an aqueous solution or an aqueous suspension. The oil-resistance of the filter wrapper paper has a KIT level of at least 4, preferably at least 5, according to TAPPI T559 cm-02.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: January 27, 2015
    Assignee: Delfortgroup AG
    Inventors: Roland Zitturi, Dietmar Volgger, Dieter Möhring
  • Patent number: 8939156
    Abstract: Wrapper for cigarette manufacture includes transversely extending band regions applied by a printing technique, such as gravure printing. The band regions comprise starch, an anti-wrinkling agent such as 1,2 propylene glycol or glycerin, and optionally calcium carbonate. Any suitable printing technique can be used to apply the aqueous solution to the banded regions. The pattern of banded regions may be bands, stripes, two-dimensional arrays, undulated regions, and the like along and/or around the tobacco rod. The pattern can be applied in one or more layers. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: January 27, 2015
    Assignee: Philip Morris USA Inc.
    Inventors: Ping Li, Firooz Rasouli, Rajesh K. Garg, Randall E. Baren, Marc W. Rose, Peter J. Lipowicz, Tony A. Phan, Timothy S. Sherwood, Szu-Sung Yang, Donald E. Miser, Milton E. Parrish
  • Publication number: 20150013707
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition contains a film-forming material. The film-forming material has a relatively low viscosity. In this manner, the film-forming composition can have a relatively high solids content and still be applied to the wrapper using conventional techniques, such as by using a gravure printer.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventor: Thomas A. Kraker
  • Publication number: 20150001148
    Abstract: A filter element is disclosed made from a gathered paper web that may be crimped, embossed, and/or corrugated. In accordance with the present disclosure, the paper web is treated with at least two different additives. The first additive comprises amphiphilic molecules, having hydrophilic and hydrophobic ends such as a ketene dimer that has one or more branching groups. The second additive, on the other hand, may comprise a polymer component such as a polyalkylene glycol. The filter element may also be treated with a polyamine or an amino acid or salt thereof. In one embodiment, the filter element may be incorporated into the filter of a smoking article. The two additives together may improve smoke taste, reduce some smoke phenols, and reduce some smoke carbonyls.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Jiayi Pan, Christophe Le Moigne, Nathalie Durot, Michel Barale, Stephane Derrien
  • Patent number: 8915255
    Abstract: A smoking article includes a sheet material comprising a fibrous layer formed of cellulosic fibers and at least 50% by weight of inorganic filler material having a particle size in range of from 0.1 microns and 50 microns, wherein the sheet material has a tensile strength of at least 900 N/m. The fibrous layer preferably further comprises a binder material, preferably an organic binder material such as a cellulosic binder material. A coating layer may be provided on at least one side of the fibrous layer.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: December 23, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Laurent Poget, Alexandre Malgat, Christoph Sorg, Andreas Hofenauer, David Croll, Rolf Gericke
  • Patent number: 8905043
    Abstract: Wrapper for cigarette manufacture includes transversely extending band regions applied by a printing technique, such as gravure printing. The band regions comprise starch, an anti-wrinkling agent such as 1,2 propylene glycol or glycerin, and optionally calcium carbonate. Any suitable printing technique can be used to apply the aqueous solution to the banded regions. The pattern of banded regions may be bands, stripes, two-dimensional arrays, undulated regions, and the like along and/or around the tobacco rod. The pattern can be applied in one or more layers. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 9, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Ping Li, Firooz Rasouli, Rajesh K. Garg, Randall E. Baren, Marc W. Rose, Peter J. Lipowicz, Tony A. Phan, Timothy S. Sherwood, Szu-Sung Yang, Donald E. Miser, Milton E. Parrish
  • Patent number: 8863757
    Abstract: A process for reducing the permeability of a paper wrapper used in the construction of a smoking article is disclosed. The paper wrapper is treated with a film-forming composition that forms treated discrete areas on the wrapper. The treated discrete areas have a permeability within a predetermined range sufficient to reduce the ignition proclivity properties of a smoking article made with the wrapper. In accordance with the present invention, the film-forming composition contains a film-forming material. The film-forming material has a relatively low viscosity. In this manner, the film-forming composition can have a relatively high solids content and still be applied to the wrapper using conventional techniques, such as by using a gravure printer.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: October 21, 2014
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventor: Thomas A. Kraker
  • Patent number: 8844540
    Abstract: Wrapper for cigarette manufacture includes transversely extending band regions applied by a printing technique, such as gravure printing. The band regions comprise starch, an anti-wrinkling agent such as 1,2 propylene glycol or glycerin, and optionally calcium carbonate. Any suitable printing technique can be used to apply the aqueous solution to the banded regions. The pattern of banded regions may be bands, stripes, two-dimensional arrays, undulated regions, and the like along and/or around the tobacco rod. The pattern can be applied in one or more layers. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 30, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Ping Li, Firooz Rasouli, Rajesh K. Garg, Randall E. Baren, Marc W. Rose, Peter J. Lipowicz, Tony A. Phan, Timothy S. Sherwood, Szu-Sung Yang, Donald E. Miser, Milton E. Parrish
  • Patent number: 8833377
    Abstract: Wrapper for cigarette manufacture includes transversely extending band regions applied by a printing technique, such as gravure printing. The band regions comprise starch, an anti-wrinkling agent such as 1,2 propylene glycol or glycerin, and optionally calcium carbonate. Any suitable printing technique can be used to apply the aqueous solution to the banded regions. The pattern of banded regions may be bands, stripes, two-dimensional arrays, undulated regions, and the like along and/or around the tobacco rod. The pattern can be applied in one or more layers. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 16, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Ping Li, Firooz Rasouli, Rajesh K. Garg, Randall E. Baren, Marc W. Rose, Peter J. Lipowicz, Tony A. Phan, Timothy S. Sherwood, Szu-Sung Yang, Donald E. Miser, Milton E. Parrish
  • Publication number: 20140224442
    Abstract: A method of manufacturing coated paper by applying a coating liquid to a strip-shaped web of paper to form a plurality of bands extending in the width direction of the web and spaced from each other in the longitudinal direction of the web includes: a coating step (S1) of applying the coating liquid to the web to form the bands with a coating band pitch narrower than a design band pitch defined as a standard for the coated paper; an aftertreatment step (S2), executed after the coating step, of drying the web; and a tension applying step (S3), executed after the aftertreatment step, of expanding the band pitch of the web by applying tension to the web to cause the band pitch of the web to approach the design band pitch.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: JAPAN TOBACCO INC.
    Inventor: Shinzo KIDA
  • Patent number: 8758561
    Abstract: The present invention relates to a cellulosic material having one or more smoke diluents within its cellular structure and, optionally, one or more smoke diluents on its surface.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: June 24, 2014
    Assignee: British American Tobacco (Investments) Limited
    Inventors: David John Dittrich, Edward Dennis John, Kevin McAdam, Martin Coleman, Robert John Whiffen, Dominic Conrad Woodcock
  • Publication number: 20140165879
    Abstract: The present invention relates to a process for preparing self-binding pigment particles from an aqueous mineral pigment material suspension having a solid content of 45 to 80 wt.-%, based on the total weight of the suspension.
    Type: Application
    Filed: March 22, 2012
    Publication date: June 19, 2014
    Inventors: Patrick A.C. Gane, Matthias Buri, Samuel Rentsch, Julie Bridy (Meuwly)
  • Patent number: 8707967
    Abstract: Wrapper for cigarette manufacture includes transversely extending band regions applied by a printing technique, such as gravure printing. The band regions comprise starch, an anti-wrinkling agent such as 1,2 propylene glycol or glycerin, and optionally calcium carbonate. Any suitable printing technique can be used to apply the aqueous solution to the banded regions. The pattern of banded regions may be bands, stripes, two-dimensional arrays, undulated regions, and the like along and/or around the tobacco rod. The pattern can be applied in one or more layers. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: April 29, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Ping Li, Firooz Rasouli, Rajesh K. Garg, Randall E. Baren, Marc W. Rose, Peter J. Lipowicz, Tony A. Phan, Timothy S. Sherwood, Szu-Sung Yang, Donald E. Miser, Milton E. Parrish
  • Patent number: 8701682
    Abstract: A cigarette wrapper includes transversely extending banded regions applied by a printing technique, such as gravure printing. The banded regions are applied in a single application of an aqueous starch solution also containing an anti-wrinkling agent such as propylene glycol, and calcium carbonate. The pattern of banded regions may be bands or stripes and the like along and/or around the tobacco rod. The banded regions may be solid or contain any number of cross-web and/or longitudinal discontinuities. The pattern may be configured so that when a smoking article is placed on a substrate, at least two longitudinal locations along the length of the tobacco rod have film-forming compound located only on sides of the smoking article not in contact with the substrate.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: April 22, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Timothy S. Sherwood, Marc W. Rose
  • Patent number: 8678016
    Abstract: A low sidestream smoke cigarette comprises a conventional tobacco rod, and a combustible treatment paper having a sidestream smoke treatment composition. The treatment composition comprises in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 25, 2014
    Assignee: Rothmans, Benson & Hedges, Inc.
    Inventors: Stanislav M. Snaidr, E. Robert Becker
  • Patent number: 8646464
    Abstract: Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a paper wrapper containing cellulosic fibers and filler particles. The paper wrappers are formed so that the filler particles form a concentration gradient throughout the thickness of the wrapper. More particularly, a greater concentration of filler particles are present at a first surface in comparison to the amount of filler particles present at the opposite surface. In accordance with the present disclosure, an ignition reducing composition is applied to the first surface. In this manner, treated areas having more uniform properties are formed.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: February 11, 2014
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Jr., James C. Rossi-Espagnet, Xiangwei Gu, Peter E. Brighenti, Christopher Lee Goynes
  • Patent number: 8646463
    Abstract: A cigarette and cigarette paper have a plurality of multilayer bands formed by printing a highly viscous aqueous film-forming composition. After heating the composition to lower its viscosity, the bands are applied to the cigarette paper by gravure printing the composition. The composition is quenched and gelatinized by contact with the cool cigarette paper reducing absorption of water by the paper and reducing wrinkling, cockling, and waviness. Multiple gravure printed layers may be used to form the bands.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: February 11, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Timothy S. Sherwood, Firooz Rasouli, Ping Li, Don E. Miser, Joe Yousef Mohajer, Bruce E. Waymack, Tony A. Phan, Tracy L. Madison, John R. Tilley, Yezdi B. Pithawalla
  • Patent number: 8580081
    Abstract: The invention concerns a paper for smoking article, in particular for a cigarette, comprising areas treated with a coating formulation adapted to reduce the ignition propensity of said treated areas which comprises nanoparticles of cellulose having a median dimension (d50) equal to or less than five micrometers.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 12, 2013
    Assignee: Papeteries du Leman
    Inventors: Jocelyne Dumas, Joel Malachie, Arnaud Ruffin, Julie Jeanrot
  • Patent number: 8568896
    Abstract: A low ignition propensity wrapping paper includes a paper web and bands arranged on the web at predetermined intervals in a longitudinal direction of the web. These bands are formed by applying a combustion-inhibition liquid onto the web. The combustion-inhibiting liquid contains a solvent and a combustion inhibitor that is sodium alginate or pectin dissolved in the solvent. The solvent is treated water obtained by substantially removing at least calcium ions and magnesium ions from raw water of a water supply or a well.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: October 29, 2013
    Assignee: Japan Tobacco Inc.
    Inventors: Shinzo Kida, Takafumi Izumiya, Keisuke Towatari
  • Publication number: 20130199742
    Abstract: A photodegradable paper including cellulose fibers and, if applicable, fillers, additives and/or other kind of fibers is described. Also described, is a paper particularly in the field of packaging, tissue papers or cigarettes.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 8, 2013
    Applicant: RHODIA ACETOW GMBH
    Inventors: Dirk Hölter, Wolfgang Koppe
  • Publication number: 20130139838
    Abstract: The invention relates to cigarette paper which contains a water-soluble salt, preferably sodium bicarbonate, potassium bicarbonate or ammonium carbonate, as a result of which a high diffusion capacity during thermal decomposition, and thus a reduction in harmful carbon monoxide in the cigarette smoke, is achieved. The invention relates in particular to cigarette paper comprising at least one water-soluble salt which has lost more than 15% of its initial mass after heating to 230° C. The invention further relates to a cigarette produced from the cigarette paper, to a method for producing the cigarette paper and to the use of the water-soluble salt.
    Type: Application
    Filed: January 28, 2013
    Publication date: June 6, 2013
    Applicant: DELFORTGROUP AG
    Inventor: DELFORTGROUP AG
  • Publication number: 20130056166
    Abstract: after years of utilizing rolling papers, I had noticed a reoccurring problem. The rolling paper is structurally sound until reaching toward the end, where the tar from the contents will ultimately accumulate and render the paper un-usable. This is a problem especially for those who are trying to save money and at the same time get their money's worth. That is to say the consumer should not have to discard any of the tobacco products they purchased, due to a flaw in the manufacturing of rolling paper.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 7, 2013
    Inventor: Christopher Lambert
  • Patent number: 8337664
    Abstract: A method and apparatus of manufacturing a web which is striped with add-on material, comprising: a first slurry supply which forms a sheet of base web and moves the sheet along a first path; a second slurry supply; and a moving orifice applicator operative so as to repetitively discharge the second slurry upon the moving sheet of base web. The moving orifice applicator includes a chamber box arranged to establish a reservoir of the second slurry across the first path, an endless belt having orifice groups, the endless belt received through the chamber box, and a drive arrangement operative upon the endless belt to continuously move the orifices along an endless-path and repetitively through the chamber box. The orifices communicate with the reservoir to discharge the second slurry as bands of add-on material to the base web. Orifices within the orifice groups can be spaced relative to one another to define bands of add-on material having a relative minimum in thickness or to define spaced apart bands.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: December 25, 2012
    Assignee: Philip Morris USA Inc.
    Inventors: John F. Cunningham, Marc W. Rose, Thomas A. Fletcher
  • Patent number: 8302612
    Abstract: A cigarette paper of the present invention includes a base cigarette paper and a plurality of combustion-suppressing regions provided, spaced apart from each other, on one surface of the base cigarette paper, the combustion-suppressing regions being formed by applying a polyvinyl alcohol having a degree of polymerization of 900 or more, or a polyvinyl alcohol whose 3% by weight aqueous solution exhibits a viscosity of 5 to 30 mPa·s as measured at 20° C.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: November 6, 2012
    Assignee: Japan Tobacco Inc.
    Inventor: Takashi Kominami
  • Patent number: 8241460
    Abstract: Web to be formed into wrapping paper is applied with combustion inhibitor and then dried. Water is applied onto the entire surface of the opposite side to the combustion-inhibitor applied side of the web. The web applied with water is dried while pinched between drying and pressing rollers and stretched in a width direction. In this way, unwrinkled high-quality cigarette wrapping paper having a low ignition propensity can be stably and inexpensively manufactured. As the pressing roller, a heat-resistant rubber roller provided in its surface with a soft portion in a helical way is utilized.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: August 14, 2012
    Assignee: Japan Tobacco Inc.
    Inventors: Shinzo Kida, Takafumi Izumiya, Yuzuru Sakuma
  • Publication number: 20120152266
    Abstract: The present invention relates to a composition having two or three film-forming agents for applying to cigarette paper, wherein the molecular weight distributions of the film-forming agents are statistically significantly different from each other. The invention further relates to a cigarette paper on which the composition is applied to discrete regions, wherein the regions are characterized by a value for diffusivity, and to a cigarette comprising the cigarette paper, characterized by values for auto-selection. The present invention further relates to a method for producing the cigarette paper and the cigarette.
    Type: Application
    Filed: June 23, 2010
    Publication date: June 21, 2012
    Applicant: DELFORTGROUP AG
    Inventor: Dietmar Volgger
  • Publication number: 20120090799
    Abstract: Web to be formed into wrapping paper is applied with combustion inhibitor and then dried. Water is applied onto the entire surface of the opposite side to the combustion-inhibitor applied side of the web. The web applied with water is dried while pinched between drying and pressing rollers and stretched in a width direction. In this way, unwrinkled high-quality cigarette wrapping paper having a low ignition propensity can be stably and inexpensively manufactured. As the pressing roller, a heat-resistant rubber roller provided in its surface with a soft portion in a helical way is utilized.
    Type: Application
    Filed: December 23, 2011
    Publication date: April 19, 2012
    Applicant: JAPAN TOBACCO INC.
    Inventors: Shinzo KIDA, Takafumi IZUMIYA, Yuzuru SAKUMA
  • Patent number: 8151805
    Abstract: A cigarette is provided with a tobacco section including a tobacco filler rod wrapped with an inner wrapper paper sheet containing less than 4% by weight of calcium carbonate and an outer wrapper paper containing calcium carbonate in an amount of 30 g/m2 and a burn adjusting agent in an amount of 3% by weight or more.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 10, 2012
    Assignee: Japan Tobacco Inc.
    Inventors: Kazuko Takeda, Yoshiyuki Yamada
  • Publication number: 20120024303
    Abstract: A cigarette includes a shredded tobacco rod and a cigarette paper that wraps the outer peripheral surface of the shredded tobacco rod. The shredded tobacco and/or the cigarette paper contains a transition metal salt of an organic acid.
    Type: Application
    Filed: September 30, 2011
    Publication date: February 2, 2012
    Inventors: Kazunori Sugai, Yasunobu Inoue, Kiyohiro Sasakawa, Mitsuru Kondo, Tsutomu Sakai, Sadako Imai, Fumiko Murata
  • Patent number: 8074663
    Abstract: A flame-retardant and fireproof cigarette which aims to contain the combustion process to the cigarette. The flame-retardant and fireproof cigarette has a filter that is aligned with a tobacco body. A flame-retardant and fireproof covering is positioned over at least a portion of the tobacco body and isolates the open fire associated with the consumption of the tobacco during the course of smoking or burning the cigarettes. Such a cigarette reduces the risk of undesired, inadvertent, and latent ignition of adjacent materials.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 13, 2011
    Inventor: Tian Ning
  • Publication number: 20110290436
    Abstract: The invention concerns a paper for smoking article, in particular for a cigarette, comprising areas treated with a coating formulation adapted to reduce the ignition propensity of said treated areas which comprises nanoparticles of cellulose having a median dimension (d50) equal to or less than five micrometres.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 1, 2011
    Inventors: Jocelyne Dumas, Joël Malachie, Arnaud Ruffin, Julie Jeanrot
  • Publication number: 20110180088
    Abstract: The present invention relates to plug wrap or tipping paper (5) for smoking articles (1). More particularly, the present invention relates to plug wrap or tipping paper for smoking articles, wherein the plug wrap and tipping paper comprises a sheet having two or more plies (10,11) and one of the plies comprises adsorbent material. The present invention also relates to a method of preparing the plug wrap and tipping paper, and smoking articles comprising the plug wrap and/or tipping paper.
    Type: Application
    Filed: January 29, 2009
    Publication date: July 28, 2011
    Applicant: British American Tobacco (Investments) Limited
    Inventors: Nicole Hooper, Gordon Grierson
  • Publication number: 20110155156
    Abstract: The present invention related to wrappers (4) for smoking material rods. More particularly, the present invention relates to wrappers for smoking material rods, wherein the wrappers comprise a single sheet having two or more plies (10, 11) and one of the plies contains adsorbent material and flavourant. The present invention also relates to a method of preparing the wrapper/and to smoking articles (1) comprising the wrapper.
    Type: Application
    Filed: January 28, 2009
    Publication date: June 30, 2011
    Inventors: Nicole Hooper, Gordon Grierson
  • Publication number: 20110000497
    Abstract: Smoking articles having reduced Hoffmann analytes contained in the mainstream smoke is disclosed. In one embodiment, an alginate composition is applied to a wrapper that is incorporated into a smoking article. The alginate composition causes a significant reduction in at least certain of the Hoffmann analytes that are generated when the smoking article is smoked. The alginate composition may be applied so as to cover a substantial portion of the surface area of the wrapper in one embodiment. In another embodiment, the alginate composition is applied as a single band to the paper wrapper so to cover a substantial portion of the distal end of the smoking article.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 6, 2011
    Applicant: SCHWEITZER-MAUDUIT INTERNATIONAL, INC.
    Inventor: Joseph T. Wanna
  • Patent number: 7836898
    Abstract: A smoking article having reduced ignition propensity is disclosed. The smoking article includes a tobacco column, a wrapper surrounding the tobacco column and a filter element. The wrapper has a base permeability, an untreated area and a least one discrete area treated with a composition to reducing the base permeability. The discretely treated area interacts with a coal of a burning tobacco firecone as it advances to self-extinguish the smoking article. The composition of the treated area includes a permeability reducing substance, a burn rate retarding substance and a burn rate accelerating substance. Either the burn rate retarding substance or the burn rate accelerating substance acts as an organoleptic enhancing substance. In this way a smoker's experience when smoking either the at least one treated area or the untreated area is substantially the same.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: November 23, 2010
    Assignee: Lorillard Licensing Company, LLC
    Inventors: Michael A. Zawadzki, Arthur M. Ihrig, David A. Grider, Terry D. Jessup, David L. Williams
  • Patent number: 7833385
    Abstract: Processes for producing the monohydrate form of magnesium ammonium phosphate in slurry from use of environmentally friendly reactants are described. Slurry containing the monohydrate form of magnesium ammonium phosphate can be fed directly to, and mixed with, paper making feedstock, such as feedstock for cigarette paper, without transformation of the monohydrate form to the hexahydrate form of magnesium ammonium phosphate.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: November 16, 2010
    Assignee: Philip Morris USA Inc.
    Inventors: Jay A. Fournier, Joshua Powell, John F. Cunningham, Warren D. Winterson, Ulrike Becker
  • Patent number: 7677256
    Abstract: Smokable rods of cigarettes are manufactured using wrapping materials that incorporate at least one fibrous material (e.g., flax fibers, hardwood pulp fibers and/or softwood pulp fibers) at least one filler material (e.g., calcium carbonate in particulate form). The wrapping materials possess multi-layer coatings. The wrapping materials possess coatings in the form of series of spaced apart bands, each band possessing a series of layers. At least one of the coating layers can have a filler material dispersed or suspended within a film-forming material of that layer.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: March 16, 2010
    Assignee: R.J. Reynolds Tobacco Company
    Inventors: Paul Stuart Chapman, Sara Sutton Williard, Charles Ray Ashcraft, James Herbert Ellis, Jr., James Ray Hutchens, Gregory Scott Pierce, John Joseph Tomel, Jr., Mark Stuart Powell
  • Publication number: 20090277466
    Abstract: A method and apparatus of manufacturing a web which is striped with add-on material, comprising: a first slurry supply which forms a sheet of base web and moves the sheet along a first path; a second slurry supply; and a moving orifice applicator operative so as to repetitively discharge the second slurry upon the moving sheet of base web. The moving orifice applicator includes a chamber box arranged to establish a reservoir of the second slurry across the first path, an endless belt having orifice groups, the endless belt received through the chamber box, and a drive arrangement operative upon the endless belt to continuously move the orifices along an endless-path and repetitively through the chamber box. The orifices communicate with the reservoir to discharge the second slurry as bands of add-on material to the base web. Orifices within the orifice groups can be spaced relative to one another to define bands of add-on material having a relative minimum in thickness or to define spaced apart bands.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 12, 2009
    Applicant: Philip Morris USA Inc.
    Inventors: John F. Cunningham, Marc W. Rose, Thomas A. Fletcher
  • Publication number: 20090065161
    Abstract: Processes for producing the monohydrate form of magnesium ammonium phosphate in slurry from use of environmentally friendly reactants are described. Slurry containing the monohydrate form of magnesium ammonium phosphate can be fed directly to, and mixed with, paper making feedstock, such as feedstock for cigarette paper, without transformation of the monohydrate form to the hexahydrate form of magnesium ammonium phosphate.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Inventors: Jay A. Fournier, Joshua Powell, John F. Cunningham, Warren D. Winterson, Ulrike Becker
  • Publication number: 20080216852
    Abstract: A cigarette made from cigarette paper comprising a base web and at least one banded region comprising iron oxide nanoparticles. The at least one banded region has a porosity less than a porosity of the base web such that the at least one banded region exhibits a slower burn rate compared to adjacent non-banded regions.
    Type: Application
    Filed: December 18, 2007
    Publication date: September 11, 2008
    Applicant: Philip Morris USA Inc.
    Inventors: Firooz Rasouli, Ping Li, Yousef Mohajer, Peter J. Lipowicz, Shalva Gedevanishvili, Weijun Zhang