EP4299266A1 - Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden - Google Patents

Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden Download PDF

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Publication number
EP4299266A1
EP4299266A1 EP22305948.6A EP22305948A EP4299266A1 EP 4299266 A1 EP4299266 A1 EP 4299266A1 EP 22305948 A EP22305948 A EP 22305948A EP 4299266 A1 EP4299266 A1 EP 4299266A1
Authority
EP
European Patent Office
Prior art keywords
cork
semi
reduced diameter
finished
glued
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.)
Pending
Application number
EP22305948.6A
Other languages
English (en)
French (fr)
Inventor
Sophie MARTINEZ
Rébecca ZETTWOOG
Christophe Loisel
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.)
Diam Bouchage SAS
Original Assignee
Diam Bouchage SAS
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 Diam Bouchage SAS filed Critical Diam Bouchage SAS
Priority to EP22305948.6A priority Critical patent/EP4299266A1/de
Priority to CL2023001904A priority patent/CL2023001904A1/es
Priority to US18/342,563 priority patent/US20240001583A1/en
Priority to CN202310774011.4A priority patent/CN117301242A/zh
Publication of EP4299266A1 publication Critical patent/EP4299266A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J5/00—Mechanical working of cork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B27K3/086—Impregnating by pressure, e.g. vacuum impregnation using supercritical or high pressure fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/38—Aromatic compounds
    • B27K3/40—Aromatic compounds halogenated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K7/00—Chemical or physical treatment of cork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0086—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0011—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece from natural or synthetic cork, e.g. for wine bottles or the like

Definitions

  • the technical field of the invention is cork stoppers, and more particularly, such stoppers reconstituted from cork elements.
  • Cork is a natural, waterproof and lightweight material, which comes from the bark of certain species of oaks, such as cork oaks, which are typically found in countries around the Mediterranean, in Europe and in North Africa.
  • Cork is particularly used in the manufacture of stoppers, which are used to seal containers such as bottles containing liquids intended for food, in particular still or sparkling wine, spirits or other drinks. Corks are produced either by casing cork boards or by reconstitution using crushed cork sifted with polymers.
  • Cork is an elastic, resilient, compressible material, impermeable to liquids and with a high coefficient of friction. Its structure offers gas permeability allowing the exchange of oxygen useful for the maturation of the product in the bottle. The structure of the cork stoppers resulting from tubing, the aesthetics of which are very appreciated, is however very variable leading to the variability of this passage of oxygen.
  • reconstituted corks called agglomerates or microagglomerates, produced from cork crushed into granules, are much more homogeneous in structure.
  • Such agglomerated or microagglomerated corks are manufactured in several successive stages during which we first obtain a raw cork following the step of crosslinking the binder between the pieces of cork. These raw plugs are then machined to give them the required diameter and length. We then obtain so-called semi-finished corks.
  • corks then undergo various more or less optional stages in order to make them conform to a marketed cork ready for bottling.
  • the corks are then called finished corks.
  • Reconstituted corks called agglomerated or microagglomerated, have the major disadvantage in aesthetic terms of moving away from the classic visual appearance of so-called “natural” corks tubed directly into the cork board. In return, they offer much better permeability characteristics, beneficial for the aging of the wine, as well as the possibility of treating the cork so as to reduce the presence of TCA (acronym for “2,4,6 trichloroanisole”) at trace level. .
  • TCA is the cause of a change in the taste of the wine through the appearance of a so-called cork taste.
  • cork stoppers called 1+1 whose opposite end faces (commonly called “mirrors”) are made of cork slices and the central body of agglomerated cork granules.
  • the mirrors of the reconstituted cap are thus masked by the cork washers both from an aesthetic and mechanical point of view.
  • a technical problem to be solved is how to make a cork for corking a bottle in which the mirrors and the roller are covered with a layer of natural cork, and which resists bottling and uncorking.
  • the cork sheets glued to the cork roll can be cut from cork in a direction perpendicular to the lenticels.
  • cork sheets glued to the mirrors of the cork can be cut from cork in a direction parallel or perpendicular to the lenticels.
  • Cork sheets can be treated so as to have a tricholoranisole level of less than 0.3ng/l, preferably by treatment with supercritical carbon dioxide.
  • the semi-finished cork of reduced diameter can be sanded and/or trimmed after gluing a sheet of cork to adapt the dimensions of the glued cork sheet to the dimensions of a semi-finished cork which has not undergone any reduction in diameter. diameter.
  • the binder may be a one-component polyurethane, a two-component polyurethane or a hot melt polyurethane.
  • Water can be applied before, during, or after the binder application to accelerate the crosslinking of the binder.
  • Steaming can be carried out at a temperature between 80°C and 150°C for a period of between 10min and 1h30 for a polyurethane binder.
  • Steaming can be carried out in an autoclave or a tunnel.
  • the semi-finished stopper of reduced diameter with a glued cork sheet can be placed in a mold allowing pressure to be applied in a direction normal to the surface of the cork sheet, the mold being preheated to the steaming temperature.
  • a semi-finished cap of reduced diameter can be machined so as to uniformly reduce its diameter with a thickness equal to twice the thickness of a sheet of cork glued to the roll.
  • a raw cork of reduced diameter can be formed in a mold of uniformly reduced diameter with a thickness equal to twice the thickness of a sheet of cork glued to the roll corresponding to the diameter of a semi-finished cap of reduced diameter, then the raw cap of reduced diameter can be machined so as to obtain a semi-finished cap of reduced diameter.
  • a sheet of cork glued to the roll can have a thickness of between 0.3mm and 1mm.
  • a sheet of cork glued to a mirror can have a thickness of between 0.3mm and 2mm.
  • the method of manufacturing a stopper according to the invention is illustrated by the figure 1 .
  • cork blades with a thickness of between 0.3mm and 2mm are cut from a parallelepiped of cork having a shape adapted to their bonding on the mirrors and the rolls from a semi-finished cap described below.
  • the cork blades glued to the mirrors of the semi-finished stopper of reduced diameter are cut from cork in a direction parallel to the lenticels.
  • Lenticels are defined as the veins opening into the pores of the cork bark.
  • the cork blade glued to the roll of the semi-finished cork of reduced diameter is cut from cork in a direction perpendicular to the lenticels.
  • FIG 2 illustrates a parallelepiped of natural cork referenced 4 comprising lenticels 5 opening onto pores 6.
  • FIG. 3 illustrates the surface of a first type 4a of cork blades cut along plane A, parallel to the lenticels.
  • a first type 4a of cork blades cut along plane A parallel to the lenticels.
  • lenticels or fragments of lenticels visible on the surface of a blade thus cut.
  • Such a blade is preferably glued to the mirrors of a cap.
  • FIG. 4 illustrates the surface of a second type 4b of cork blade cut along plane B, perpendicular to the lenticels. Pores 6 resulting from the cutting of lenticels 5 are visible on the surface of the cork blade.
  • a blade is preferably glued to the roll of a cork. In a particular embodiment, such a blade is also glued to the mirrors of the cap. Such an embodiment has the advantage of reducing costs by cutting the cork blades glued to the roll and the mirrors in the same direction, both in terms of the industrial process and the supply of cork.
  • the commercially available cork parallelepipeds corresponding to the parallelepipeds referenced 4 on the figure 2 generally have a width of 25mm.
  • a width limits the possibilities of cutting a sheet of cork to stick on the roll of a cork.
  • a cap generally has a length of between 38mm and 54mm for a diameter of 24mm.
  • Such a diameter of 24mm implies a perimeter of approximately 75mm.
  • the cork sheet glued to the roll thus has a length of 75mm for a width of between 38 and 54mm, exceeding the width of a cork parallelepiped.
  • Such sheets must therefore be cut perpendicular to the width of the parallelepiped and perpendicular to the lenticels.
  • cork strips thus cut present a visual similar to the visual observed in a cork cased in a parallelepiped of cork, so as to reinforce the visually very similar appearance of the corks obtained compared to corks cased in cork.
  • a semi-finished cork is prepared whose diameter after gluing a sheet of cork is equal or substantially equal to the diameter of a semi-finished cork resulting not of this manufacturing process.
  • finished cork we mean a crushed cork stopper glued under pressure with a polyurethane binder machined so as to be ready for the traffic jam.
  • the request for patent FR2672002 in the name of the plaintiff illustrates such a stopper. Only finishing steps separate a semi-finished cork from a finished cork. Such a reduction in diameter is important in order to ensure that the cap produced, after finishing, has a diameter ensuring that the extraction force will be less than the limit of 50daN.
  • a semi-finished cork is machined so as to reduce its diameter uniformly by a thickness equal to twice the thickness of a sheet of cork glued to the roll.
  • a raw cork is formed in a mold having an internal diameter reduced to a thickness equal to twice the thickness of a sheet of cork glued to the roll in relation to the diameter of a mold for form a raw plug of reduced diameter.
  • the raw plug of reduced diameter obtained is then machined in a manner similar to the machining of a raw plug, in accordance with industry practice. We then obtain a semi-finished plug of reduced diameter similar to that obtained by the first embodiment.
  • a sheet of cork is glued to the roll of the semi-finished cork of reduced diameter obtained in the previous step.
  • a binder suitable for food contact is deposited on the semi-finished cork of reduced diameter and/or the cork sheet.
  • the binder may in particular be a one-component polyurethane binder, a two-component polyurethane binder or a hot-melt polyurethane binder.
  • the crosslinking of the binder is improved by wetting the sheet and/or the cap by spraying water or by condensation of water in a humid or humidity-saturated atmosphere.
  • the assembly formed by the semi-finished stopper of reduced diameter and the cork sheet is steamed by applying pressure normal to the glued sheet. via a mold, possibly preheated to the steaming temperature.
  • sanding and trimming are carried out during a third sub-step 2c to adapt the dimensions of the glued cork sheet to the dimensions of the cork. This step is optional and depends on the result obtained at the end of the second sub-step 2b.
  • a sheet of cork is glued to each mirror of the cork.
  • a binder suitable for food contact is deposited on the semi-finished cork of reduced diameter and/or the cork sheets, possibly supplemented by humidification of the cork sheet and/or the cork .
  • the cork sheets are then applied to the semi-finished cork of reduced diameter.
  • the assembly formed by the semi-finished stopper of reduced diameter and the cork sheets is steamed by applying normal pressure to the glued sheets via a mold. , possibly preheated to the steaming temperature.
  • sanding and trimming are carried out, to adapt the dimensions of the glued cork sheets to the dimensions of the cork, when this proves necessary.
  • the maximum temperature was determined to be equal to 150°C, the temperature at which cork burns.
  • a temperature between 80°C and 150°C, preferably between 90°C and 115°C, or preferably between 100°C and 110°C has been determined to be satisfactory.
  • thermoexpandable microspheres are added to the polyurethane binder.
  • the maximum temperature is then equal to 110°C, a temperature beyond which the plugs are damaged by the expansion of the microspheres.
  • durations of 1 hour allow good polymerization to be obtained.
  • durations greater than 1h30 do not provide any improvement in crosslinking, so that they rather represent a disadvantage of the production process by leading to a reduction in productivity associated with the manufacturing process.
  • This steaming is carried out by placing the corks glued with a sheet of cork in a mold allowing a force to be exerted on the sheet to be glued.
  • a cylindrical mold with hinge, piston or screw is used so as to apply pressure in an axial direction of the cork.
  • a cylindrical mold with hinge and latches or bolted is used so as to apply pressure on the cork radially.
  • the baking time is reduced to 10 minutes for a baking temperature of 150°C, to 40 minutes for a baking temperature of 100°C, and to 1 hour for a baking temperature of 80°C. °C.
  • crosslinking of the binder has been described in relation to steaming. It is nevertheless possible to use other means of heating, in particular a heating tunnel, equipped with a conveyor belt and allowing the molds to pass through while heating them. The speed of movement is then correlated with the length of the tunnel so as to obtain the heating times described above.
  • the test campaign therefore aimed to measure imbibition, elastic return and extraction force.
  • THE figures 5 to 7 illustrate the results of these tests and their comparison with reference caps.
  • results of the plugs according to the invention are represented by disc-shaped symbols while the results of the reference plugs are represented by symbols in the shape of a triangle.
  • trend associated with the caps according to the invention is represented in dotted lines, while the trend associated with the reference caps is represented in dashes.
  • the imbibition of a cork characterizes its absorption of water under particular conditions of temperature and pressure.
  • the imbibition measurement makes it possible to verify that the impregnation of the cork prior to gluing the cork sheet does not lead to deterioration during steaming.
  • the imbibition of the caps was estimated following a mass measurement of the caps totally immersed in water at 100°C for 15 min. This temperature makes it possible to visualize the behavior of the plugs. accelerated manner in extreme conditions. We then determine the imbibition as the ratio of the difference in mass before immersion and after immersion by the mass before immersion.
  • FIG. 5 illustrates the results obtained for the caps according to the invention and for reference caps having a structure similar to that of the semi-finished caps in the manufacturing process according to the invention.
  • the imbibition of the caps according to the invention is thus similar in order of magnitude and in deviation to that of the reference caps.
  • the imbibition is thus between 3 and 6% mass imbibition, i.e. significantly lower than the compliance limit of 11%.
  • Elastic return is one of the mechanical properties of a cork and makes it possible to quantify the force generated in reaction by the cork on the wall of the neck of the bottle.
  • the elastic return is measured automatically with the “Multitest 10i” machine from the Mecmesin company.
  • the cork undergoes compression until it reaches a diameter of between 15mm and 16mm, which corresponds to the diameter of the jaws of a corker. Compression is obtained using a piston which moves at a speed of 10 mm/min. The force required (in Newtons) to perform this compression is measured. The compression value is reduced to the cylindrical surface of the cap. This must be between 15 and 60 N/cm 2 and preferably between 25 and 60 N/cm 2 depending on the diameters of the plugs.
  • the plates will then release the pressure and position themselves at a distance of 21 millimeters from each other, called the return distance. After 180 seconds, the pressure exerted by the cap on the plates is noted. This pressure corresponds to the elastic return force (also in Newton). For the interpretation of the results, these forces will be calculated in relation to the surface of each plug, and therefore expressed in Newton per square centimeter.
  • the elastic return of the caps according to the invention is significantly lower, at constant density compared to that of the reference caps, while remaining higher than the limit of 3.2 N/cm 2 of the standard.
  • the extraction forces making it possible to quantify the force necessary to extract the cork from the neck of the bottle were then measured. They are measured as follows. First, caps to be tested are introduced into bottle necks. After 2 hours of rest in the necks, the corks are extracted using a corkscrew connected to a system for measuring the force necessary to extract the cork from the neck of the bottle, such as the machine " Multitest 2.5 - d” from the company Mecmesin.
  • the extraction force value must be between 100 and 600 N, preferably between 200 and 500 N depending on the diameters of the plugs.
  • the extraction force of the plugs according to the invention is thus similar in order of magnitude to that of the reference plugs, while presenting a greater deviation but nevertheless close to that of the reference plugs.
  • FIG. 8 illustrates the main parts of the cap according to the invention.
  • a cap according to the invention comprises in its center a semi-finished cap of reduced diameter having a reduced length, referenced 10. It comprises two mirrors 10a and a wheel 10b.
  • a sheet of cork 20a is glued to each mirror 10a of the semi-finished cork of reduced diameter.
  • a sheet of cork 20b is glued to the roll 10b of the semi-finished cork of reduced diameter.
  • the semi-finished stopper of reduced diameter is a crushed cork stopper glued under pressure with a polyurethane binder.
  • the patent application FR2672002 in the name of the plaintiff illustrates such a stopper.
EP22305948.6A 2022-06-29 2022-06-29 Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden Pending EP4299266A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP22305948.6A EP4299266A1 (de) 2022-06-29 2022-06-29 Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden
CL2023001904A CL2023001904A1 (es) 2022-06-29 2023-06-27 Procedimiento de fabricacion de un tapon para sellar una botella que comprende laminas de corcho
US18/342,563 US20240001583A1 (en) 2022-06-29 2023-06-27 Method for manufacturing a cap for plugging a bottle comprising cork sheets glued on the two lids and on the roll
CN202310774011.4A CN117301242A (zh) 2022-06-29 2023-06-28 制造用于塞住瓶子的瓶盖的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22305948.6A EP4299266A1 (de) 2022-06-29 2022-06-29 Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden

Publications (1)

Publication Number Publication Date
EP4299266A1 true EP4299266A1 (de) 2024-01-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22305948.6A Pending EP4299266A1 (de) 2022-06-29 2022-06-29 Verfahren zur herstellung eines korkens zum verschliessen einer flasche mit korkblättern, die auf die beiden spiegelseiten und auf die rolle geklebt werden

Country Status (4)

Country Link
US (1) US20240001583A1 (de)
EP (1) EP4299266A1 (de)
CN (1) CN117301242A (de)
CL (1) CL2023001904A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672002A1 (fr) 1991-01-25 1992-07-31 Sabate Sa Bouchons Champagne Composition utilisable pour la fabrication de bouchon et procede de fabrication.
FR2832950A1 (fr) * 2001-11-30 2003-06-06 Bostik Findley Procede de fabrication de bouchons par collage de rondelles en liege massif utilisant des adhesifs polyurethannes
WO2008113608A2 (en) * 2007-03-22 2008-09-25 Rasoira Holding Sa Stopper of spiral wound cork leafs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672002A1 (fr) 1991-01-25 1992-07-31 Sabate Sa Bouchons Champagne Composition utilisable pour la fabrication de bouchon et procede de fabrication.
FR2832950A1 (fr) * 2001-11-30 2003-06-06 Bostik Findley Procede de fabrication de bouchons par collage de rondelles en liege massif utilisant des adhesifs polyurethannes
WO2008113608A2 (en) * 2007-03-22 2008-09-25 Rasoira Holding Sa Stopper of spiral wound cork leafs

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Publication number Publication date
US20240001583A1 (en) 2024-01-04
CL2023001904A1 (es) 2024-02-09
CN117301242A (zh) 2023-12-29

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