EP3437494B1 - Tobacco filter wrapping paper, tobacco filter using tobacco filter wrapping paper, and cigarette using tobacco filter - Google Patents

Tobacco filter wrapping paper, tobacco filter using tobacco filter wrapping paper, and cigarette using tobacco filter Download PDF

Info

Publication number
EP3437494B1
EP3437494B1 EP16901594.8A EP16901594A EP3437494B1 EP 3437494 B1 EP3437494 B1 EP 3437494B1 EP 16901594 A EP16901594 A EP 16901594A EP 3437494 B1 EP3437494 B1 EP 3437494B1
Authority
EP
European Patent Office
Prior art keywords
wrapping paper
filter
paper
water
wrapping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16901594.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3437494A1 (en
EP3437494A4 (en
Inventor
Toru Sakurai
Ryoko OGI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP3437494A1 publication Critical patent/EP3437494A1/en
Publication of EP3437494A4 publication Critical patent/EP3437494A4/en
Application granted granted Critical
Publication of EP3437494B1 publication Critical patent/EP3437494B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
    • 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

  • the present invention relates to a tobacco filter wrapping paper, a tobacco filter using the tobacco filter wrapping paper, and to a cigarette using the tobacco filter.
  • wrapping paper in rod-like smoking articles such as cigarettes
  • filter wrapping paper such as wrapping paper resulting from wrapping a medium of a filter for rod-like smoking articles
  • tipping paper for wrapping integrally a filter and a tobacco rod
  • rod wrapping paper for wrapping shredded tobacco in a tobacco rod.
  • a rod state is brought about through wrapping of the filter medium using the wrapping paper, after which one end of the wrapping paper in the wrapping direction, and the other end, are superimposed on each other and are glued.
  • the portion at which the ends the wrapping paper are superimposed is referred to as a wrap portion.
  • Cigarettes are also known in which a capsule having a fluid material sealed therein is introduced into the filter of a filtered cigarette, such that and wherein pressing of the capsule by the smoker causes the fluid material within the capsule to penetrate into the medium of the filter, to modify thus the flavor at the time of smoking (Patent Document 1).
  • Patent Document 1 discloses a feature wherein at least part of a filter assembly is covered by a material that is impermeable towards the fluid material. Patent Document 1 indicates that by adopting such a configuration it becomes possible to prevent or eliminate contamination of tipping paper when the fluid material is released out of the capsule. As the material impermeable to the fluid material, Patent Document 1 describes cellophane, polyvinylidene chloride or a substantially impermeable film or sheet.
  • WO 2015/107975 A1 describes a filter cigarette, which enables prevention of contamination of tobacco smoke with foreign matters such as pollens while ensuring good airflow.
  • WO 2014/086802 A2 describes a method of manufacturing a smoking article. The method comprises the steps of providing a mouthpiece, a substantially transparent wrapper, an aerosol generating substrate, a sheet of paper material comprising a window in the paper material and wrapping the sheet of paper material around at least a portion of the transparent wrapper so that an underlying mouthpiece segment can be viewed through the window and the substantially transparent wrapper.
  • WO 2015/122426 A1 describes a filtered cigarette having a tobacco rod portion, a filter portion, and a filter rolling paper for winding around an external surface of the filter portion.
  • Patent Document 1 Japanese Translation of PCT Application No. 2008-539717
  • Characteristics that are demanded from wrapping paper for tobacco filters include formability, adhesiveness of the wrap portion during wrapping of the filter, and adhesiveness of the wrap portion after production.
  • formability denotes herein the feasibility of wrapping the wrapping paper around a filter medium at a predetermined speed.
  • the medium of the tobacco filter is impregnated with a water-soluble liquid
  • storage stability is also demanded in that the water-soluble liquid should not leak out of the filter after wrapping.
  • the wrapping paper is required to exhibit durability towards the water-soluble liquid, so as to achieve satisfactory wrapping.
  • the wrapping paper for tobacco filters in the present invention (hereinafter, merely referred to as "wrapping paper") has incorporated therein a nonwoven fabric layer made up of hydrophobic fibers and having interfiber bonding points, such that a contact angle with water in at least one from among a front surface and a back surface of the paper is set to be 90° or greater, and thickness is set to 100 pm to 300 pm, or has incorporated therein a nonwoven fabric layer made up of hydrophobic fibers and having interfiber bonding points, and an air impermeable layer, such that a contact angle with water in at least one from among a front surface and a back surface is set to be 50° or greater, and thickness is set to 100 pm to 300 pm.
  • the present invention succeeds in providing a wrapping paper for tobacco filters that is excellent in formability, and after filter wrapping, is excellent in adhesiveness of a wrap portion during filter wrapping and in adhesiveness of the wrap portion after production, is excellent in durability towards a water-soluble liquid during wrapping of a filter medium impregnated beforehand with the liquid, and is excellent in storage stability after wrapping.
  • a wrapping paper of a tobacco filter wrapping paper is formed by a nonwoven fabric made up of hydrophobic fibers.
  • the hydrophobic fibers that make up the nonwoven fabric have interfiber bonding points.
  • the presence of interfiber bonding points imparts the wrapping paper with the required tensile strength, and improves high-speed wraparound properties.
  • the term interfiber bonding points in the present invention denotes a plurality of points at which hydrophobic fibers are bonded to each other by thermal fusion or via an adhesive.
  • the thickness of the wrapping paper in the first mode of the present invention is 100 pm to 300 pm.
  • the wrapping paper acts as a buffer in a case where a water-soluble liquid is added to a filter medium, and allows preventing that water-soluble liquid from leaking out of the filter.
  • the thickness of the wrapping paper is 200 pm to 300 pm.
  • the wrapping paper is preferably as thick as possible, from the viewpoint of preventing leakage of the water-soluble liquid from a filter medium having had the liquid added thereto, and from the viewpoint of securing adhesiveness of a wrap portion over long periods of time.
  • a thickness of 100 pm or greater results in excellent formability as a tobacco filter wrapping paper.
  • excellent formability denotes the feasibility of wrapping the wrapping paper around the filter medium at a predetermined speed.
  • the layer thickness of the wrapping paper corresponds to the thickness of the nonwoven fabric that makes up the wrapping paper.
  • water-soluble liquid in the present invention denotes a liquid containing 3 wt% or more of water. Such a water-soluble liquid has no affinity towards hydrophobic fibers.
  • the thickness of the wrapping paper according to the present invention is measured on the basis of the JIS P 8118 (Paper and board - determination of thickness and density). In the measurement, a paper surface pressure is set to 100 kPa.
  • the thickness of the wrapping paper worked out in accordance with the above measurement method is an average thickness.
  • the contact angle of one of surfaces of the wrapping paper with water is 90° or greater. Since one of the surfaces of the wrapping paper of the first mode of the present invention has a contact angle lying within such a range, it becomes possible to secure sufficient waterproofness, and to prevent leakage of a water-soluble liquid to the exterior, even when a water-soluble liquid is added to the filter medium.
  • the contact angle with water is measured using "Drop Master” by Kyowa Interface Science Co., Ltd., as the measuring instrument, under measurement conditions that involve dropping of 2 pL droplets of distilled water onto a specimen, and measuring the contact angle after 0.1 seconds in accordance with a 1/2 ⁇ method.
  • the measurement method of contact angle with water is the same in a second mode below. Contact angle with water is illustrated conceptually in Fig. 5 .
  • hydrophobic fibers include for instance fibers made up of polyolefins such as polyethylene or polypropylene, or thermoplastic resins other than polyolefins, for instance nylon or polyester, and also composite fibers being combinations of fibers made up of the foregoing thermoplastic resins.
  • Polyolefin fibers are preferably used among the foregoing, and among these, polyethylene or polypropylene fibers are more preferably used, since these form interfiber bonding points on account of heat, and allow fibers to fuse with each other at a low temperature.
  • the molecular weight of the thermoplastic resin, such as a polyolefin, that makes up the hydrophobic fibers is not particularly limited, but in ordinary implementations the mass average molecular weight (Mw) based on a standard polystyrene calibration curve and measured by GPC (Gel Permeation Chromatography) is 20,000 to 300,000.
  • the hydrophobic fibers may have a double core-sheath structure.
  • the materials that make up the outer side and the inner side may both be a polyolefin.
  • fibers having a double core-sheath structure being a combination in which the inside is made up of polypropylene and the outside is a resin having a lower melting point than that of polypropylene.
  • a double core-sheath structure can be preferably adopted in which the outside is made up of polyethylene and the inside is made up of polypropylene.
  • the resins that make up fibers having such a double core-sheath structure can exhibit the above molecular weight range.
  • the fiber diameter of the hydrophobic fibers that make up the nonwoven fabric may be for instance 0.1 to 20 dtex.
  • the nonwoven fabric that makes up one surface of the tobacco filter wrapping paper is made up of hydrophobic fibers, and accordingly the contact angle with water at that surface is large.
  • the contact angle of one of the surfaces of the tobacco filter wrapping paper is large it becomes possible to prevent a water-soluble liquid from penetrating into the interior of the tobacco filter wrapping paper, and to prevent tearing or embrittlement of the tobacco filter wrapping paper arising from penetration of that water-soluble liquid.
  • Ordinary tobacco filter wrapping paper is made up of paper having pulp as a starting material, such that fibers are connected to each other by intermolecular forces and partly by hydrogen bonds at the inter-fiber bonds that make up the paper. Accordingly, the weak bonds between the fibers are split as a result of penetration of a water-soluble liquid into the wrapping paper, and the paper exhibits tears or embrittlement as a result.
  • the numerous voids between hydrophobic fibers in the paper of the present invention might ostensibly render the paper susceptible to water seeping, water does not however penetrate readily into the paper, and even if that is the case the paper does not tear or become brittle, since the paper is made up of hydrophobic fibers that are connected to each other by interfiber bonding points.
  • Production of the nonwoven fabric involves a web formation process and a bonding process.
  • Types of formation process include for instance carding or air-laying in which short fibers are randomly laid up in air, and wet methods in which short fibers are dispersed in water and are then filtered up.
  • Examples of the subsequent bonding process include for instance chemical bonding through immersion in or spraying with a water-soluble or water-insoluble adhesive, thermal bonding by thermal fusion of thermoplastic resins or fibers, needle punching in which fibers become mechanically entangled with each other by being punched with needles, and hydro-entangling through jetting of a high-pressure water stream.
  • spun-bonding methods and melt blown methods are methods widely resorted to as methods in which the formation process and the bonding process are part of the flow of a series of processes.
  • spun bonding long fibers are formed through spinning of a thermoplastic resin while the resin is being thermally melted, and in a melt blown method a web is formed while short fibers are being discharged, with heat bonding of the fibers progressing simultaneously therewith.
  • Interfiber bonding points between hydrophobic fibers are present in a nonwoven fabric having thermal bonding points between hydrophobic fibers in the process of producing the nonwoven fabric, and hence the fabric endures penetration of a water-soluble liquid; also, the water-soluble liquid does not readily seep through, since the fabric is made up of hydrophobic fibers in the first place.
  • Interfiber bonding points between the hydrophobic fibers are present in a nonwoven fabric having bonding points derived from a water-insoluble adhesive between hydrophobic fibers in the process of producing the nonwoven fabric, and hence the fabric endures penetration of a water-soluble liquid; also, the water-soluble liquid does not readily seep through, since the fabric is made up of hydrophobic fibers in the first place.
  • Thermal bonding is preferred herein as the method for bonding fibers to each other, since such a method allows controlling surface roughness easily, and exerts little influence on cigarette flavor.
  • the surface roughness of the tobacco filter wrapping paper in terms of Ra value, is preferably 10 or greater.
  • the adhesiveness of the wrap portion during wrapping of the filter is improved by virtue of the fact that the Ra value is 10 or greater. As a result, it becomes possible to prevent peeling of the wrapping paper off the filter medium, caused by peeling of a bonding surface of the wrap portion when the filter medium is wrapped in a cylindrical shape.
  • the value of Ra is ordinary 50 or smaller.
  • the surface roughness Ra of the nonwoven fabric as the wrapping paper can be adjusted for instance by performing a rolling treatment after production of the nonwoven fabric, by adjusting the fiber diameter of the hydrophobic fibers that form the nonwoven fabric, or by adjusting the basis weight of the nonwoven fabric.
  • the wrapping paper of the first mode of the present invention is substantially air permeable, which means that voids are present in the wrapping paper. This elicits as a result an anchoring effect during bonding of the wrap portion at the time of wrapping of the filter, with increased adhesiveness of the wrap portion and while precluding peeling of the wrapping paper after wrapping of the filter medium.
  • the basis weight of the wrapping paper in the first mode of the present invention is preferably 20 to 50 gsm.
  • the basis weight of the wrapping paper in the first mode of the present invention corresponds to the basis weight of the nonwoven fabric that makes up the wrapping paper.
  • a basis weight lying in the above range contributes to enhancing the waterproofness of the wrapping paper, and in a case where a water-soluble liquid is added to the filter medium, allows preventing leakage of the water-soluble liquid out of the filter.
  • the basis weight can be adjusted by adjusting the amount of fibers being supplied during production of the nonwoven fabric that is used in the wrapping paper, or by adjusting the thickness of the nonwoven fabric.
  • the basis weight was worked out by cutting the nonwoven fabric to a square shape having a 10 cm side, followed by weighing and calculation of the weight per unit area. Weighing is performed after storage for long enough as to bring about equilibrium moisture in an environment at 22°C and 60%. The same applies to the below-described second mode.
  • the first mode of the present invention basically envisages formation of the wrapping by a nonwoven fabric alone, but so long as the above-described features are not impaired, the wrapping paper may include features other than the nonwoven fabric, for instance some reinforcing material or the like.
  • the second mode of the present invention is a wrapping paper having a layer made up of a nonwoven fabric (hereafter also referred to simply as nonwoven fabric) that is in turn made up of hydrophobic fibers and has inter-fiber bonds, and an air impermeable layer.
  • nonwoven fabric hereafter also referred to simply as nonwoven fabric
  • the above nonwoven fabric layer and the air impermeable layer are laid on each other with one respective face of each layer facing the other.
  • the layering method may be a method that involves superimposing the nonwoven fabric layer and the air impermeable layer, and pressing and bonding the foregoing through application of heat; or an extrusion lamination method in which a thermoplastic resin is melted and is laminated in the form of a film, while being extruded, onto a nonwoven fabric that constitutes a base material.
  • the wrapping paper has an air impermeable layer, in addition to the nonwoven fabric layer; as a result, there is achieved the effect elicited by the nonwoven fabric explained above and, additionally, excellent storage stability is achieved in that sufficient waterproofness can be secured, also upon wrapping of a filter medium having had a water-soluble liquid added thereto.
  • Excellent storage stability denotes herein a property whereby no water-soluble liquid leaks out of the filter after wrapping of the filter medium having had a water-soluble liquid added thereto.
  • the thickness of the wrapping paper made up of the above layers is 100 pm to 300 pm, similarly to the first mode of the present invention.
  • the wrapping paper in such a case acts as a buffer and can prevent the water-soluble liquid from leaking to the exterior of the filter, by virtue of the fact that the thickness of the wrapping paper is 100 pm or greater.
  • the layer thickness of the wrapping paper of the second mode of the present invention is more preferably 100 pm to 200 pm.
  • the layer thickness of the wrapping paper is as large as possible from the viewpoint of preventing leakage of a water-soluble liquid from a filter having had the water-soluble liquid added thereto.
  • the thickness is 100 pm or greater it becomes possible to secure sufficient tensile strength as a tobacco filter wrapping paper, and formability is thus excellent.
  • Excellent formability denotes the feasibility of wrapping the wrapping paper around a filter medium at a predetermined speed.
  • the layer thickness of the wrapping paper of the second mode of the present invention refers to layer thickness after lamination of the nonwoven fabric layer and the air impermeable layer.
  • the wrapping paper has a layer made up of a nonwoven fabric, and an air impermeable layer.
  • the thickness of the wrapping paper corresponds herein to total thickness, including the foregoing layers.
  • the thicknesses of the layer made up of a nonwoven fabric and of the air impermeable layer are not particularly limited, but for instance the thickness of the layer made up of a nonwoven fabric is 50 pm to 290 pm, and the thickness of the air impermeable layer is 10 pm to 50 pm.
  • the foregoing thickness values denote thickness as wrapping paper, after forming (after lamination).
  • a water-soluble liquid is present in the filter medium to be wrapped, that water-soluble liquid is arrested by the air impermeable layer, and the adhesiveness of the wrap portion can be secured over long periods of time by the nonwoven fabric layer having sufficient thickness such the above.
  • the layer made up of a nonwoven fabric there can be used a layer identical to that of the first mode of the present invention, in terms of production method, types of resin and so forth, and thickness.
  • the air permeability of the air impermeable layer of the present invention is 0 CU.
  • the air impermeable layer is impermeable to air, and also impermeable to the water-soluble liquid. By having such properties the air impermeable layer allows securing the formability and waterproofness that are required of the wrapping paper of the present invention.
  • the air impermeable layer can be embodied for instance in the form of a film made up of a thermoplastic starting material, typically a polyolefin, or some other material.
  • a thermoplastic starting material typically a polyolefin, or some other material.
  • a commercially available film can be used as the film made up of a thermoplastic starting material. Examples include for instance films of polyethylene, polypropylene, copolymers of ethylene and propylene, nylon or polyester.
  • the molecular weight of the polyolefin is not particularly limited, but in an exemplary implementation the mass average molecular weight (Mw) based on a standard polystyrene calibration curve, measured by GPC (Gel Permeation Chromatography), can be ordinarily of 20,000 to 300,000.
  • the contact angle with water of at least one surface from among the front surface and the back surface is 50° or greater.
  • the surface at which the contact angle with water is 50° or greater is preferably the surface, of the layer made up of a nonwoven fabric, that is exposed at the outer surface.
  • the contact angle with water is 50° or greater the water resistance of the wrapping paper is excellent, and even when a water-soluble liquid is added to the medium of the filter, the water-soluble liquid does not leak out of the wrapping paper, nor does the tensile strength of the wrapping paper drop.
  • the surface roughness of at least one from among the front surface and the back surface takes on an Ra value of 10 or greater.
  • the adhesiveness of the wrap portion is improved by virtue of the fact that the Ra value is 10 or greater. This allows preventing the wrapping paper from coming off the filter medium.
  • the surface of the wrapping paper having the above Ra value is preferably the surface on the side of the outer surface of the filter.
  • This surface is preferably the surface, of the layer made up of a nonwoven fabric, that is exposed at the outer surface.
  • the wrap portion is formed through superposition of both ends of the wrapping paper in the wrapping direction.
  • the surface of the layer made up of a nonwoven fabric and the surface of the air impermeable layer may be glued together at a portion of overlap of the foregoing surfaces; alternatively, one end of the wrapping paper in the wrapping direction may be folded back towards the inner face (filter medium side), to thereby glue together the surfaces in such a manner that the surfaces of the layer made up of a nonwoven fabric come into contact with each other.
  • the basis weight of the wrapping paper in the second mode of the present invention is preferably 30 to 100 gsm.
  • the basis weight of the wrapping paper in the first mode of the present invention corresponds to the basis weight of the total of the layer made up of a nonwoven fabric and of the air impermeable layer that make up the wrapping paper.
  • a basis weight lying in the above range contributes to enhancing the waterproofness of the wrapping paper and, also in a case where a water-soluble liquid is added to the filter medium, allows preventing leakage of the water-soluble liquid out of the filter.
  • the basis weight can be adjusted through adjustment of the thickness of the layer made up of a nonwoven fabric and the thickness of the air impermeable layer that makes up the wrapping paper.
  • the air permeability of the layer made up of a nonwoven fabric making up the wrapping paper is 27,000 to 45,000 CU (Coresta units), both in the first mode and the second mode.
  • the air permeability can be adjusted for instance through adjustment of the type of the fibers, the thickness of the fibers, the amount of the fibers and the thickness of the nonwoven fabric, during production of the nonwoven fabric.
  • the air permeability of the wrapping paper is 0, since the wrapping paper has the air impermeable layer.
  • air permeability in the present invention denotes the flow rate of permeating (passing) air, per minute and per cm 2 , when air is caused to pass at a constant pressure of 1 kPa from one face (2 cm 2 ) of the paper.
  • the second mode of the present invention basically envisages the wrapping paper being formed by a nonwoven fabric and an air impermeable layer, but so long as the above-described features are not impaired, the wrapping paper may include features other than the nonwoven fabric and the air impermeable layer, for instance some reinforcing material or the like.
  • Fig. 1 is an exploded perspective-view diagram of one mode of a filtered cigarette 1 that utilizes an example of the wrapping paper of the present invention.
  • the cigarette 1 is a filtered cigarette provided with a tobacco rod 2, and a filter 4 connected to one end of the tobacco rod 2 via tipping paper 3.
  • the tobacco rod 2 is formed to a cylindrical shape (rod-like shape) through wrapping of shredded tobacco 21 using rod wrapping paper 22.
  • the filter 4 is formed to have a cylindrical shape of substantially the same diameter as that of the tobacco rod 2, and is a part for filtering smoke components, contained in mainstream smoke and generated during smoking of the cigarette 1, as the mainstream smoke passes through the filter.
  • the filter 4 is wrapped by the tipping paper 3, and is connected to the rear end of the tobacco rod 2 via the tipping paper 3.
  • the tipping paper 3 wraps integrally an end of the tobacco rod 2 and the filter 4, to thereby connect the tobacco rod 2 and the filter 4.
  • Ventilation holes 31 for introduction, into the filter 4, of outside air (air) that dilutes mainstream smoke, are pierced at a region of the tipping paper 3 that covers the filter 4.
  • the ventilation holes 31, being external air introduction holes for so-called ventilation are provided in the form of a plurality of holes in the tipping paper 3. The air introduced through the ventilation holes 31 of the tipping paper 3 dilutes the mainstream smoke that passes through the filter 4.
  • the ventilation holes 31 in the tipping paper 3 are not an essential feature, and the manner in which the ventilation holes 31 are provided can be modified as appropriate.
  • the ventilation holes 31 may be provided in just the tipping paper 3.
  • the wrapping paper includes a layer having an air impermeable layer, as in the second mode, air for mainstream smoke dilution can be introduced by arranging the ventilation holes, also in the wrapping paper, so as to correspond to the positions at which the ventilation holes 31 are disposed in the tipping paper 3.
  • the filter 4 has a filter section 7 resulting from wrapping of a medium 5, for instance cellulose acetate tow, with a wrapping paper 6 of the present invention.
  • the wrapping paper of the first mode of the present invention ( Fig. 2 ) or the wrapping paper of the second mode ( Fig. 3 ) of the present invention can be used herein as the wrapping paper 6.
  • the wrapping paper of the second mode the layer made up of a nonwoven fabric is preferably wrapped so as to constitute the outer surface side, from the viewpoint of securing adhesive strength in the wrap portion of the wrapping paper, during wrapping and after wrapping.
  • the method for wrapping the medium 5 using the wrapping paper 6 can be carried out using for instance a known filter maker, and the medium 5 can be wrapped through bonding of the wrap portion of the wrapping paper using a known adhesive.
  • a water-soluble liquid is added to the medium 5 of the filter section 7 of the present mode.
  • the water-soluble liquid contains for instance propylene glycol (PG), glycerin (G), water or the like, as explained below.
  • PG propylene glycol
  • G glycerin
  • the filter section 7 is also referred to as the filter of the present invention.
  • the wrapping paper of the present invention is used for wrapping the medium of a filter.
  • the wrapping paper of the present invention is suitable for wrapping of a filter medium to be wrapped having added thereto a water-soluble liquid that contains for instance propylene glycol, glycerin, water or the like.
  • the water-soluble liquid that is added to the medium of the filter is not particularly limited, and may be a water-soluble liquid containing propylene glycol, glycerin, water or the like, as described above, but also a water-soluble liquid additionally containing, besides the foregoing, various additives such as flavor.
  • the ratio by weight of propylene glycol, glycerin or water in the water-soluble liquid that is added to the filter medium is not particularly limited.
  • propylene glycol may be 10 to 100 mg/filter
  • glycerin may be 1 to 150 mg/filter
  • water may be 5 to 100 mg/filter, as the amount added to the filter medium of the filtered cigarette.
  • the solution added to the filter section 7 may contain a thickener.
  • the type of thickener that can be used is not particularly limited, so long as the thickener dissolves in propylene glycol or glycerin and in water. Examples include for instance xanthan gum, gellan gum, psyllium seed gum, pectins, carboxymethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, agarose, pullulan, alginic acid, polyacrylic acid and alkali metal salts or alkaline earth metal salts of the foregoing.
  • the amount of water-soluble liquid that is added to the filter medium is not particularly limited, and as a yardstick may be for instance 10 to 300 mg/filter, as the amount added to the filter medium of an ordinary filtered cigarette having a circumference of 24.0 to 25.0 mm.
  • Fig. 3 is a diagram illustrating a second mode of the sheet-like wrapping paper 6 prior to wrapping of the filter section 7 according to Embodiment 1 above.
  • An air impermeable layer 61 is formed on one face of a layer 62 made up of a nonwoven fabric, of the wrapping paper 6.
  • the filter section 7 is wrapped by the wrapping paper 6 in such a manner that the layer 62 made up of a nonwoven fabric constitutes an outer surface that faces the outer peripheral surface of the medium 5.
  • the air impermeable layer 61 of the wrapping paper 6 is a film-like layer that is directly overlaid onto, and in contact with, the layer 62 made up of a nonwoven fabric.
  • wrapping paper paper having wood pulp as a main component
  • a polypropylene film air impermeable film
  • a cellophane film high-density cellulose
  • a nonwoven fabric in which polyethylene was used as hydrophobic fibers, as well as a nonwoven fabric, in which a polyethylene film was laminated on such a nonwoven fabric, were used. Both of the nonwoven fabrics had interfiber bonding points generated through thermal fusion.
  • the nonwoven fabric had a layer thickness of 145 pm and the polyethylene film had a layer thickness of 20 pm.
  • the nonwoven fabric had a layer thickness of 220 pm and the polyethylene film had a layer thickness of 20 pm.
  • the nonwoven fabric and the polyethylene film were pressed during lamination, and accordingly the thickness after lamination decreased with respect to the total thickness of the nonwoven fabric and the polyethylene film before lamination; herein the thickness of the wrapping paper after lamination in Example 2 was 126 pm and the thickness of the wrapping paper after laminate in Example 4 was 194 pm.
  • Thickness, surface roughness (Ra) and contact angle with water were measured in accordance with the methods below.
  • Thickness was measured in accordance with JIS P 8118: Paper and board - Determination of thickness and density. Paper surface pressure was set to 100 kPa.
  • Basis weight was worked out by cutting the nonwoven fabric to a square shape having a 10 cm side, followed by weighing and calculation of the weight per unit area. Weighing was performed after storage for long enough as to bring about equilibrium moisture in an environment at 22°C and 60%.
  • Each wrapping paper illustrated in Table 1 was wrapped around a filter medium using a filter maker. The maximum number of revolutions that allowed for stable wraparound was likewise checked. There were further checked the peel strength of the wrap portion, water absorption by the wrapping paper, and degree of leakage to the outer surface, after storage of the filter. Storage involved sealing in a vinyl bag after wraparound, and being allowed to stand in conditions of 23°C and 60%. Samples having a laminate surface on one side were wrapped in such a manner that the laminate surface lay on the inside (tow side) during wrapping.
  • the wrap portion tip of the cut wrapping paper was peeled by hand slightly, to form a tab.
  • Each tab was set on a peel tester and was subjected to a 180-degree peel test.
  • the median value from start of measurement up to 40 mm was obtained, and an average value of the foregoing upon five repetitions was expressed in g units, as the measurement result.
  • a measurement result under 15 g was rated as X (poor), and a result of 15 g or greater was rated as 0 (good).
  • the degree of red coloration of the wrapping paper as a whole and the degree of color transfer upon pressing of a tissue against the surface were assessed.
  • the results denote the storage stability after wrapping of the wrapping paper.
  • X entire surface of the wrapping paper (substantially 100%); ⁇ : partial leakage; 0: slight leakage; and ⁇ : no leakage
  • Comparative example 1 (regular paper): Wrapping paper produced using pulp as a material.
  • Comparative example 2 (high air permeability paper): Wrapping paper obtained by mixing rayon and pulp.
  • Comparative example 3 (cellophane): Film-like wrapping paper obtained using viscose.
  • Comparative example 4 (laminate-paper): Wrapping paper obtained by laying a film made up of polyethylene on one face of paper produced using pulp.
  • Comparative example 5 (laminate-paper-laminate): Wrapping paper obtained by laying a film made up of polyethylene on both faces of paper produced using pulp.
  • Example 1 (olefin PPPE25): Wrapping paper made up of a nonwoven fabric (basis weight 25 gsm) obtained using double core-sheath structure fibers, as hydrophobic fibers, made up of polypropylene on the inside and of polyethylene on the outside.
  • Example 2 (olefin PPPE25-laminate): Wrapping paper obtained by laying up a polyethylene film on a nonwoven fabric (basis weight 25 gsm) obtained using double core-sheath structure fibers, as hydrophobic fibers, made up of polypropylene on the inside and of polyethylene on the outside.
  • Example 3 (olefin PPPE40): Wrapping paper made up of a nonwoven fabric (basis weight 40 gsm) obtained using double core-sheath structure fibers, as hydrophobic fibers, made up of polypropylene on the inside and of polyethylene on the outside.
  • Example 4 (olefin PPPE40-laminate): Wrapping paper obtained by laying up a polyethylene film on a nonwoven fabric (basis weight 40 gsm) obtained using double core-sheath structure fibers made up of polypropylene on the inside and of polyethylene on the outside.
  • Comparative example 1 is wrapping paper made up of so-called general-purpose paper (regular paper) formed out of fibers having wood pulp as a main component. High-speed operation in a filter maker was possible, given the general-purpose character of the paper, but the contact angle with water was low and leakage occurred readily, as a result of which hydrophilic bonding portions, being the main constituent of the paper, collapsed readily and eventually peeled off.
  • general-purpose paper regular paper
  • Comparative example 2 is wrapping paper for high air permeability, containing fibers having wood pulp as a main component and rayon, being regenerated fibers.
  • the paper is coated with chemicals for the purpose of enhancing water resistance, and accordingly although the paper has a void structure, the initial contact angle with water is very high, and thus water is repelled by paper.
  • the surface roughness of the paper is sufficient, and allows for high-speed operation.
  • Comparative example 3 is cellophane (cellulose film) having a barrier function in that cellophane has substantially no void structure for the passage of water or air.
  • hydrophilicity was high and gave rise to swelling and collapse with the passage of time.
  • surface roughness is virtually absent, and sufficient adhesive strength fails to be obtained at the wrap portion; as a result, just wrapping of the cellophane is difficult under ordinary settings. The result would still be impractical even if a waterproofing effect were achieved by coating the cellophane with a water resistance-imparting chemical.
  • Comparative example 4 is composite paper obtained through lamination of a water-repellent olefin onto one face of the regular paper of Comparative example 1.
  • the paper lacks air permeability, and desktop water resistance is sufficient on account of the hydrophobicity of the laminate surface.
  • the barrier effect at the laminate surface is high and glue penetration is limited, although the paper exhibits roughness at the level of regular paper, on both faces.
  • the operable speed is therefore somewhat lower than that of pulp, while waterproofness, as the essence of a filter, is low, which renders the paper unsuitable for practical use.
  • Comparative example 5 is wrapping paper having a structure in which both faces of Comparative example 1 are laminated with a water-repellent olefin (polyethylene). Similarly to Comparative example 4, the paper lacks air permeability, and desktop water resistance is high enough on account of the hydrophobicity of the laminate surface. However, glue penetration at both faces is extremely limited, and accordingly the operable speed is even lower than that of Comparative example 4. Waterproofness as a filter cannot be regarded as perfect but is still higher than that of Comparative example 4. The paper is similar to that of Comparative example 4 in terms of exhibiting low peel strength, at a non-practical level.
  • Examples 1 and 3 differ in the thickness of the nonwoven fabric made up of double core-sheath structure fibers, as hydrophobic fibers, in turn made up of polypropylene on the inside and polyethylene on the outside.
  • the wrapping paper in both examples has sufficient surface roughness, and accordingly exhibits high adhesive strength in the wrap portion and allows for high-speed operation.
  • the void structure of the paper lets water and air readily through, the paper has a layer made up of polyolefin fibers, and the high contact angle with water is indicative of high waterproofness.
  • a phenomenon occurs however in that water is pressed into through-holes on account of a certain pressure that is exerted during formation of the filter. Therefore, waterproofness can be further increased by providing a buffer zone of water-soluble liquid, through an increase in thickness as in Example 3. Sufficient peel strength is moreover obtained on account of the effects elicited by water-resistant inter-fiber bonds and very large surface roughness.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Laminated Bodies (AREA)
EP16901594.8A 2016-05-09 2016-05-09 Tobacco filter wrapping paper, tobacco filter using tobacco filter wrapping paper, and cigarette using tobacco filter Active EP3437494B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/063718 WO2017195245A1 (ja) 2016-05-09 2016-05-09 たばこフィルター用巻取紙、そのたばこフィルター用巻取紙を用いたたばこフィルター、およびそのたばこフィルターを用いたシガレット

Publications (3)

Publication Number Publication Date
EP3437494A1 EP3437494A1 (en) 2019-02-06
EP3437494A4 EP3437494A4 (en) 2020-01-15
EP3437494B1 true EP3437494B1 (en) 2022-11-09

Family

ID=60266416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16901594.8A Active EP3437494B1 (en) 2016-05-09 2016-05-09 Tobacco filter wrapping paper, tobacco filter using tobacco filter wrapping paper, and cigarette using tobacco filter

Country Status (3)

Country Link
EP (1) EP3437494B1 (ja)
JP (1) JP6544877B2 (ja)
WO (1) WO2017195245A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021199908A1 (ja) * 2020-04-01 2021-10-07 株式会社東亜産業 電子タバコカートリッジ
WO2021215489A1 (ja) * 2020-04-22 2021-10-28 日本たばこ産業株式会社 非燃焼加熱式たばこ及び加熱式たばこ製品
AU2021294599A1 (en) * 2020-06-22 2024-02-08 Greg Dimopoulos A smoking tip
KR102639728B1 (ko) * 2021-04-08 2024-02-23 주식회사 케이티앤지 담배 물질, 상기 담배 물질의 제조방법, 상기 담배 물질을 포함하는 필터 및 상기 필터를 포함하는 에어로졸 생성 물품

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013390A (ja) * 2001-06-28 2003-01-15 Unitika Ltd 有害物除去シ−ト
US7878962B2 (en) 2005-05-03 2011-02-01 Philip Morris Usa Inc. Cigarettes and filter subassemblies with squeezable flavor capsule and methods of manufacture
AT513413B1 (de) * 2012-09-17 2014-12-15 Tannpapier Gmbh Schichtverbund an einem Rauchartikel
GB201220098D0 (en) * 2012-11-07 2012-12-19 Filtrona Filter Prod Dev Co tOBACCO SMOKE FILTER
UA116785C2 (uk) * 2012-12-04 2018-05-10 Філіп Морріс Продактс С.А. Курильний виріб з прозорою обгорткою
JP2017060405A (ja) * 2014-01-17 2017-03-30 日本たばこ産業株式会社 フィルタシガレット、シガレット用フィルタ、及びシガレット用フィルタに用いる巻取紙
JP2017077181A (ja) * 2014-02-14 2017-04-27 日本たばこ産業株式会社 フィルター付シガレット
JP2017135984A (ja) * 2014-06-10 2017-08-10 日本たばこ産業株式会社 たばこ製品用のフィルタ及びたばこ製品

Also Published As

Publication number Publication date
EP3437494A1 (en) 2019-02-06
WO2017195245A1 (ja) 2017-11-16
JPWO2017195245A1 (ja) 2018-08-30
JP6544877B2 (ja) 2019-07-17
EP3437494A4 (en) 2020-01-15

Similar Documents

Publication Publication Date Title
EP3437494B1 (en) Tobacco filter wrapping paper, tobacco filter using tobacco filter wrapping paper, and cigarette using tobacco filter
US11576428B2 (en) Smoking article filter and method of manufacturing the same
EP2753199B1 (en) Smoking article filter including polymeric insert
US11589608B2 (en) Biodegradable filter with improved taste
DE3013320A1 (de) Fuer lebensmittel, insbesondere wurstwaren geeignete schlauchhuelle mit einer klebenaht und verfahren zu ihrer herstellung
JP5502742B2 (ja) 耐水性高通気性複合シート及びその製造方法
US11737491B2 (en) Filtered smoking article
WO2005063027A1 (de) Proteinhaltige, schlauchförmige nahrungsmittelhülle mit innenverstärkung
US7762267B2 (en) Filter element
ES2948950T3 (es) Papel a base de celulosa compostable para barrera frente a gases en material de envasado
TWI617253B (zh) 菸草過濾器用捲繞紙、使用該菸草過濾器用捲繞紙之菸草過濾器、及使用該菸草過濾器之香菸
US20220402669A1 (en) Compostable lid for sealing a beverage capsule or a beverage pad and capsules and pads sealed therewith
WO2022250135A1 (ja) 液体を添加したフィルター、該フィルターを備える香味吸引物品、及び香味吸引物品パッケージ
JP2003052343A (ja) 食品保存用具
US20230180816A1 (en) Nonwoven fabric for oral pouched product, and methods of manufacturing a nonwoven fabric
JP3952261B2 (ja) 食品包装材
EP4378329A1 (en) Cigarette filter including lyocell tow
TW202325182A (zh) 具有載體層的面膜
CN115515441A (zh) 用于加热但不燃烧应用的不可燃包装物
IL305724A (en) component for use in an aerosol delivery system
JPH072508B2 (ja) 防虫剤の包装材

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181029

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20191213

RIC1 Information provided on ipc code assigned before grant

Ipc: D21H 13/14 20060101ALI20191209BHEP

Ipc: A24D 1/02 20060101AFI20191209BHEP

Ipc: D21H 27/00 20060101ALI20191209BHEP

Ipc: A24D 3/04 20060101ALI20191209BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220603

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: JAPAN TOBACCO INC.

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1529769

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016076291

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20221109

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1529769

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230309

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230209

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230309

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230526

Year of fee payment: 8

Ref country code: DE

Payment date: 20230519

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016076291

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20230810

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230524

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221109

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230509

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230509