Classifications

• • 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
  • D21H27/30—Multi-ply
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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
  • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
  • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
  • A24C5/56—Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical means
  • A24C5/565—Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical means by treating the tipping material with a liquid or viscous solution, e.g. paraffine
• • 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
  • A24C5/56—Making tipping materials, e.g. sheet cork for mouthpieces of cigars or cigarettes, by mechanical means
  • A24C5/58—Applying the tipping materials
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/20—Cigarettes specially adapted for simulated smoking devices
• • 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
  • D21H17/63—Inorganic compounds
• • 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
  • D21H19/36—Coatings with pigments
• • 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
  • D21H19/36—Coatings with pigments
  • D21H19/38—Coatings with pigments characterised by the pigments
  • D21H19/385—Oxides, hydroxides or carbonates
• • 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
  • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
  • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
  • D21H23/22—Addition to the formed paper
• • 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
  • D21H5/00—Special paper or cardboard not otherwise provided for
  • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
  • D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
  • D21H5/16—Tobacco or cigarette paper

Definitions

• the present invention is directed to an aerosol generating article as for example a cigarette.
• the present application is especially directed to a tipping wrapper for aerosol generating articles as for example cigarettes.
• Cigarettes known from the state of the art comprise usually several components as for example a filter, a cigarette body and a so-called tipping wrapper, which is usually at least partially wrapped around the filter.
• the tipping wrapper also often referred to as“tipping paper” in the art, has the function to connect the mouthpiece rod and the tobacco rod, but it is furthermore known from the state of the art, that decoration such as printing, hot foiled stamping or em bossing is added to this tipping wrapper.
• decoration such as printing, hot foiled stamping or em bossing is added to this tipping wrapper.
• shiny appearance especially high glossiness
• tipping wrapper has been expected to enhance the attractiveness of the product.
• a known technique in this field is silver ink printing to obtain such shiny appearance but, in this case, an additional printing process is required.
• the shiny appearance can be obtained by calandraring a paper containing more than 10 % Kaolin. In this case the problem arises, that ink abrasion from the paper surface after printing may arise.
• the tipping wrapper should be non-combustible (it should comprise smol dering resistance) because it is a connecting part of the mouthpiece and the tobacco rod. To assure sufficient non-combustibility some non-combustible tipping wrapper was developed which a certain amount of non-combustible filler.
• titanium dioxide As such a filler, titanium dioxide has been widely used. This material has the advantage of high opacity (delivers higher opacity to the paper) and non-combustibility. However, in some countries this material is prohibited because of health concerns.
• tipping wrapper should have a good lip feeling during smoking. Consumers gen erally like better lip release feelings, which means, that a cigarette should not be stuck on the lip after puffing. For this reason it’s common to add lip release varnish on the surface of the tipping wrapper to avoid that it gets stuck on the mouth of the consumer.
• Another object of the invention is to provide an improved lip release feeling with the tipping wrapper. Another object of the invention is to provide a tipping wrapper which provides a shiny appearance especially without an additional printing process or also without the use of titanium dioxide (T1O2). Also an improved lip release feeling should be provided.
• a tipping wrapper according to the invention for an aerosol generating article for example a cigarette has a base layer with a porosity of less than 1 ,5 C.U., wherein the base layer con tains at least one filler material and wherein the tipping wrapper further comprises a surface, especially a pigmented surface, which is pigmented with a pigment component, which con tains CaCCh and at least a second component serving as a non-combustible filer, wherein the pigment component has a grammage of at least 2,0 gsm, and wherein the pigmented surface has a surface smoothness of at least 400 sec.
• the tipping wrapper is a tipping paper.
• the material of the tipping wrap per is paper.
• the here described tipping wrapper fulfills general tipping wrapper requirements as for example to sufficient ink fixability, to non-combustibility and machine runability.
• Fur thermore the tipping wrapper according to the invention comprises a shiny appearance and an improved lip feeling.
• the filler material is chosen from a group of materials which contains Kaolin, CaCCh, talc and AI(OH)3 (aluminum hydroxide).
• one of these materials can be contained in the filler materials, two, several, or all those materials. Also an arbitrary combination of the materials can be contained as for ex ample Kaolin and talc or CaCCh and AI(OH)3.
• the above-mentioned smoothness is preferably measured with the Bekk method.
• the Bekk smoothness testing is an informative technique for determining the smoothness of a sample.
• the smoothness or the roughness is a substantial surface property of papers, cartons or cardboard, coated sheets or the like.
• the quality of the surface structure has a great influence on the printability and any form of coating.
• the Bekk smoothness measurement is a method established in the paper industry based on airflow. This slower the air flows between the paper surface and the ideal plain, the higher the smoothness, expressed in Bekk smoothness seconds. In a preferred method, a repre sentative paper of approximately 10 cm 2 can be tested in the Bekk method.
• the above-mentioned glossiness refers to the specular gloss of paper.
• specular gloss testing is an informative technique for determining the glossiness of a sample.
• the glossiness is a substantial surface property of papers, cartons or cardboard, coated or laminated sheets or the like.
• the quality of the surface glossiness has a great influence on the appearance.
• the glossiness measurement is a method established in the paper industry based on spec ular reflection.
• the specular gloss expressed as a percentage, of the luminous flux reflected by the sample surface into a specified aperture at the angle of specular reflection to that from a standard specularly reflecting surface under the same conditions.
• the light incident on the test piece surface at an angle of 60 degrees.
• the second component is chosen from a group of components which contains Kaolin, talc or aluminum hydroxide AI(OH)3. Also the second component may contain more than one of these components. Also the second component may contain a certain selection of these components as Kaolin and talc or talc, Kaolin and aluminum hy droxide AI(OH)3. ln another very preferred embodiment, the base layer is a base paper.
• the above-mentioned pigmented surface can also be referred to as a printing surface. In a preferred embodiment, the pigmented surface is attached to the base layer.
• the Unit C.U. is understood as so called Coresta Unit which is defined by the volumetric flow rate of air (in the unit cm 3 /min) passing through a 1 cm 2 sample of a substrate at an applied pressure difference of 1 kPa.
• the pigmented layer may comprise a printing.
• the pigmentation layer serves for improving the brightness of the tipping wrapper.
• the smoothness of the pigmented surface is at least 500 sec (measured with the Bekk method).
• the base layer and the pigmented surface build a double layer structure.
• these two layers can be attached to each other.
• the filler material of the base layer is chosen of or contains a material chosen from a group of materials which contains Kaolin, CaCCh, talc and aluminum hydroxide (AI(OH)3). Preferably, more of these materials are comprised in the filler material of the base layer.
• the basis weight of the tipping wrapper is greater than 40 gsm, preferred greater than 45 gsm. In another preferred embodiment the basis weight of the tipping wrapper is smaller than 60 gsm, preferably smaller than 55 gsm. Those basis weights have been proven to be in a preferred range especially for machine run ability on manufacturing machines.
• a thickness of the tipping wrapper is greater than 30 micros, preferably greater than 35 microns.
• the thickness of the tipping wrapper is smaller than 55 mi crons, preferably smaller than 50 microns.
• the thickness along the tipping wrapper surface has a deviation of less than 20 % preferably of less than 10 %.
• a paper density of the tipping wrapper is greater than 1 , 1 g/cm 3 , preferably greater than 1 , 15 g/cm 3 .
• a paper density of the tipping wrapper is smaller than 1 ,3 g/cm 3 , preferably smaller than 1 ,25 g/cm 3 .
• this feature enhances the machine run ability on a cigarette making machine.
• a smoothness of the tipping wrapper is greater than 500 sec, preferably greater than 600 sec and preferably greater than 700 sec.
• a smoothness of the tipping wrapper is smaller than 2500 sec, preferably smaller than 2000 sec.
• a glossiness of the tipping wrapper is greater than 10 %, preferably greater than 15 % and preferably greater than 20 %.
• a glossiness of the tipping wrapper is smaller than 35 %, preferably smaller than 30 %.
• a pigment component contains the CaCCh (Calcium car bonate) and Kaolin in a ration which is between 3:7 and 7:3, preferably between 4:6 and 7:3 and most preferably between 5:5 and 6:4.
• the amount of the pigmentation is higher than 2 gsm, pref erably higher than 3 gsm, preferably higher than 4gsm and preferably higher than 5 gsm.
• the tipping wrapper is free of titanium dioxide ( PO2). In this case, possible health risks as considered in some countries are avoided.
• the pigmented surface is based on a coating solution, which comprises water, a binder component and the pigmentation component.
• a coating solution which comprises water, a binder component and the pigmentation component.
• other components may be comprised.
• the present invention is furthermore directed to a cigarette comprising a tipping wrapper according to the above description.
• the cigarette comprises a mouthpiece rod, a tobacco rod and a connector to connect those two elements.
• the tipping wrapper and especially the above-mentioned tipping wrapper serves to connect the mouthpiece rod and the tobacco rod.
• the present invention is furthermore directed to a method for producing a tipping wrapper for an aerosol-generating article and especially for cigarettes comprising the following steps.
• a base layer of the tipping wrapper is provided.
• this base layer is coated with a solution containing a pigment component which contains CaCCh and at least a second component serving as a non-combustible filler.
• the coated based layer is pressed and heated at a predefined temperature to form a pigmented surface having a surface smoothness of at least 400 sec.
• the base layer contains at least one filler material as defined earlier.
• the predefined temperature is greater than 100°C, preferably above 140°C, preferably above 150°C, preferably above 170°C and/or the tem perature is below 300°C, preferably below 250°C and preferably below 200°C.
• a pulp or a filler mixture can be pressed to a flat wire.
• this mixture loses water from at least one side and prefer ably both from a top side and from a bottom side. Thereby the water can be sucked off.
• the sheet can be pressed between elements and especially between cylinders. In this way more moisture is removed from the paper.
• the paper is dried, wherein especially the paper comes into contact with steam heated cylinders to be dried. Therefore preferably cylinder devices or cylinders are used to dry the paper. Especially heated cylinders and most preferably steam- heated cylinders are used.
• a surface coating and especially a pigmentation unit is used.
• a coating of a solution (comprising preferably filler and binder) is supplied on at least one surface of the paper.
• a coating and especially a pigment component is used which contains CaCCh and at least a second component serving as a non-combustible filler.
• the pigment component is supplied with a grammage of a least 2,0 gsm.
• another drying of the paper is made, preferably again by heated cylinders and most preferably by steam heated cylinders.
• the above-mentioned calendaring process is added.
• the paper passes between calendar rollers especially at higher temperatures and pres sures.
• the paper surface becomes therefore smooth and glossy. This is especially possible if there is sufficient filler amount on the surface of the paper.
• the paper is winded, preferably using a reel.
• a physical property of the paper is measured, for example the base weight, the opacity and other.
• the product provides an improved shiny appearance and a higher surface or smoothness.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Paper (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=67514381

Family Applications (1)

Country Status (10)

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Family Cites Families (12)

• 2020
  • 2020-07-30 AU AU2020320029A patent/AU2020320029A1/en not_active Abandoned
  • 2020-07-30 KR KR1020227006154A patent/KR20220038137A/ko not_active Withdrawn
  • 2020-07-30 WO PCT/EP2020/071512 patent/WO2021019016A1/en not_active Ceased
  • 2020-07-30 PH PH1/2022/550153A patent/PH12022550153A1/en unknown
  • 2020-07-30 ES ES20745235T patent/ES2965158T3/es active Active
  • 2020-07-30 CN CN202080055644.4A patent/CN114207215A/zh active Pending
  • 2020-07-30 CA CA3145598A patent/CA3145598A1/en active Pending
  • 2020-07-30 JP JP2021574877A patent/JP7600156B2/ja active Active
  • 2020-07-30 EP EP20745235.0A patent/EP4003066B1/de active Active
  • 2020-07-30 US US17/631,231 patent/US20220264936A1/en not_active Abandoned

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