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WO2012139590A1 - Récipient - Google Patents

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Publication number
WO2012139590A1
WO2012139590A1 PCT/DK2012/050126 DK2012050126W WO2012139590A1 WO 2012139590 A1 WO2012139590 A1 WO 2012139590A1 DK 2012050126 W DK2012050126 W DK 2012050126W WO 2012139590 A1 WO2012139590 A1 WO 2012139590A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
pulp
mold
pulp material
gas
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.)
Ceased
Application number
PCT/DK2012/050126
Other languages
English (en)
Inventor
Hans Meincke
Jesper SERVÉ
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.)
ECOXPAC AS
Original Assignee
ECOXPAC AS
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 ECOXPAC AS filed Critical ECOXPAC AS
Priority to EP12717169.2A priority Critical patent/EP2697429A1/fr
Publication of WO2012139590A1 publication Critical patent/WO2012139590A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
    • D21J3/10—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies
    • 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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J7/00—Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould

Definitions

  • the present invention relates to a container, a method for making a container and an apparatus for making a container. Specifically the present invention relates to a container made from a pulp material, a method for making a container from a pulp material, and an apparatus for making a container from a pulp material.
  • containers for e.g. beverages such as carbonated beverages, alcoholic beverages and non-carbonated beverages have a tendency to be discarded by the consumer shortly after consuming the beverage.
  • the container is made from a non-biodegradable material, such as PET, the container will be present in the environment for a long time.
  • the amount of waste on the global scene is rising and landfill areas are filling up.
  • Molding plastic is less complex than molding pulp material.
  • the elasticity of plastic simplifies manufacturing and allow pouring heated plastic into a mold having a desired shape, allowing the plastic to harden, and removing the hardened plastic from the mold. Further, the elasticity of plastic allows it to bend in different directions and resiliently recover when drawn from a mold, thus as pulp material is inelastic and fragile molding techniques used for plastic is not transferrable to pulp material. Applying plastic molding techniques causes the pulp to tear. Additionally, pulp molding is less capable of attaining complex shapes, e.g., reverse drafts on surfaces, since it cannot elastically recover when drawn from molds.
  • the invention preferably seeks to mitigate, alleviate or eliminate one or more of the above mentioned disadvantages singly or in any combination.
  • the apparatus for producing a container may comprise a frame comprising a base supporting at least one mold, the mold including an opening, a pulp material feeding device configured to reciprocally enter the mold via the opening, a pulp reservoir in communication with the pulp material feeding device, the pulp reservoir configured to hold a pulp material, and a pulp pressure reservoir configured to provide pressure so as to deliver the pulp material from the pulp reservoir via the pulp material feeding device to the at least one mold.
  • the apparatus' and methods described herein may be used to make or produce any suitable geometry of a container made of pulp material.
  • the method is advantageous for producing a container having a relatively small opening, such as seen on beer bottles, soft-drink bottles, juice bottles, oil cans etc..
  • the container body may advantageously be rotationally symmetrical around the longitudinal axis, as most of the containers for beverages are today, but the apparatus allow for more complex geometries if desired.
  • the frame, base and mold are preferably made from a metallic material so as to allow long apparatus lifetime and high resistance to wear. Further, it is contemplated that providing the apparatus in a metallic material cleaning of the apparatus.
  • the frame attached the apparatus to a surface, e.g. a floor.
  • the at least one mold is provided for producing at least one product at a time.
  • the apparatus may produce two products at one time etc.
  • the mold includes an opening, and as will be apparent later, the opening may be used for inserting different devices into the mold for different purposes.
  • the opening may correspond approximately in size to the opening in the finished product.
  • the pulp material feeding device may be a conduit with a valve and/or dispersive element for allowing the pulp material to be sprayed into the mold, preferably in a layer having a somewhat even thickness.
  • the mold may be a two-part mold having female parts defining the outline of the product to be produced.
  • the mold may include grooves or ridged for providing the surface of the finished product with aesthetic features.
  • the pulp reservoir may be any suitable container, such as a plastic container, container of a metallic material.
  • the pulp pressure reservoir is configured to provide pressure so as to deliver the pulp material from the pulp reservoir via the pulp material feeding device to the at least one mold.
  • the pulp pressure reservoir may include a pressure generator for generating during the operation of the apparatus.
  • the pulp pressure reservoir may feed the pressure directly to the pulp reservoir for driving the pulp material to the mold.
  • Other suitable configurations are also possible.
  • the material used for the container is preferably a recyclable material, a disposable material, a plant fiber material such as hemp fibers or flax, i.e. Linum
  • the material mused for the container may be a mixture of then mentioned materials. Also additives of different kinds may be used for establishing different material properties.
  • the pulp material does preferably not include recycled material as the material used for a beverage container should not release possibly toxic material to the beverage. However if an appropriate, i.e. food grade, coating is used it is contemplated that recycled material may be used for the container. The coating will then ensure that any contaminants will not be transferred from the container and into the liquid, e.g. beverage, inside the container.
  • the apparatus further comprises an expandable device configured to be inserted into the at least one mold via the opening.
  • the expandable device may be collapsible so that the expandable device may be retracted from the interior of the mold, and thus also from the interior of the product.
  • the expandable device is configured to apply pressure to the pulp material disposed in the mold.
  • the expandable device may be regulated so as to control the amount of pressure applied.
  • the expandable device is a balloon-like device.
  • the shape of the expandable device may match the female part of the mold, so that the expandable device may be regarded as a male part of the mold.
  • the expandable device is also collapsible so that the expandable device may be retracted from the mold after the pressure has been applied.
  • the container may be provided with a threaded part for engaging with a closure device for establishing a seal for closing the container when an appropriate liquid has been filled into the container.
  • the closure device may advantageously be made from a material similar to that of the container.
  • a second aspect of the present invention relates to a method for producing a container using an apparatus comprising a frame comprising a base supporting at least one mold, the mold including an opening to the interior of the mold, a pulp material feeding device configured to reciprocally enter the mold via the opening, a pulp reservoir in communication with the pulp material feeding device, the pulp reservoir configured to hold a pulp material, and a pulp pressure reservoir configured to provide pressure so as to deliver the pulp material from the pulp reservoir via the pulp material feeding device to the at least one mold, the method comprising the steps of operating the apparatus by supplying pressure from the pulp pressure reservoir so as to dispose the pulp material from the pulp reservoir via the pulp material feeding device to the interior of the at least one mold, and applying a vacuum pressure to the mold so that the pulp material is distributed in the mold.
  • the vacuum ensures that the pulp material is distributed inside the mold and that a somewhat even layer is formed. When a layer of a certain thickness is formed the vacuum does no longer attract new pulp material.
  • the apparatus further comprises a pressure application device configured to be inserted into the mold and the method includes applying pressure to pulp material within the mold. This helps the product to obtain a more stable form. This also allows the product to be moved from a mold station to a curing station where the product is to be cured.
  • the pressure application device is a flexible device configured to expand so as to provide the mentioned pressure to the pulp material within the mold, the method comprising supplying a pressure application device pressure to the pressure application device.
  • the flexible device may after application of pressure be collapsed and removed from the interior of the container.
  • the application of pressure also establishes a smoother surface on the inner surface of the container than compared to containers where such a pressure is not established.
  • the pressure application device is preshaped so as to correspond to the geometry of the container. This is contemplated to allow the pressure application device to hold or support the container when it is to be moved from one station in the apparatus for producing the container to another station in the apparatus. Also, the preshaped pressure application device is contemplated to provide a flexible inner core that may be inflated so that it does not apply pressure to the mold material constituting the container at this point, but only supports the material. The pressure application device then supports the fragile material when the container is removed from the mold, if the pressure application device was not preshaped, the pressure application device would then return to the original shape which would then cause the container to be damaged or destroyed.
  • a third aspect of the present invention relates to a method of configuring a product by using an apparatus comprising a mold having a cavity defining a geometry, a storage device for storing a molding material product for constituting part of the product, a molding material product delivery device configured for spraying the molding material product into the cavity, and a pressure transfer device configured to be inserted into the cavity for transferring pressure to a part of the inside surface of the product, the method including spraying the molding material product into the mold, applying pressure to the part of the inside surface of the product via the pressure transfer device.
  • the apparatus further comprises a curing device, and the method further comprises curing the product in the curing device.
  • This allows the container product to achieve an increased strength. Further the container is able to store and hold a liquid for a shorter or extended period of time.
  • the curing may include heat, pressure, vacuum, radiation or a combination of these.
  • the curing process hardens the container so that the container may be provided with e.g. a carbonated beverage or a non-carbonated beverage.
  • the pressure transfer device is an inflatable device and the application of pressure includes supplying gas at a pressure being higher than the surrounding air pressure.
  • the gas is a gas that is non-toxic and does not leave any substantial amount of material in the container.
  • the pressure transfer device is further pre-shaped to match the geometry of the product.
  • the molding material product is a pulp material and the method comprises drying the pulp material after spraying the molding material product into the mold.
  • the main part of the drying may be performed in a curing station.
  • the mold station may also at least partly dry the container.
  • the method further comprises applying a coating to the interior of the container.
  • the coating may ensure that the container is capable of storing a liquid.
  • the coating may make the container impermeable to the liquid that the container is to store.
  • the specific coating may be chosen based on the intended liquid. If the container is intended for use as a foodstuff container, e.g. beverages, any coating should be approved for use in connection with food, such as approved by FDA (Food and Drug Administration in USA).
  • the method further comprises applying a coating to the exterior of the container.
  • the coating may ensure that the container is not damaged due to exposure to e.g. rain, spills, or other effects of handling the container.
  • the coating for the interior of the container and the exterior does not need to be the same kind, but may in some instances be of the same kind.
  • a fourth aspect of the present invention relates to a container having a container body defining a longitudinal axis, the container body defining a maximum diameter at a point on the container body, the container body defining a first end and an opposite second end, the first end and the second end being disposed in the longitudinal axis orientation, the first end being closed, the second end including an opening being smaller than the maximum diameter, and the container body being formed from a pulp material.
  • the pulp material is contemplated to allow the container to be biodegradable or compostable, such that the container will be decomposed if it is dumped as litter. .
  • the container may further comprise a liquid impermeable coating at an interior surface therefor allowing the container to store a liquid.
  • the coating is contemplated to protect the pulp material after the pulp material has cured or hardened, as the liquid to be stored in the container may dissolve the pulp material.
  • the container may advantageously have a relative small opening or orifice for dispensing the liquid, e.g. the opening may have a size suitable for a person to drink directly from the container.
  • the coating does not mix substantially with the liquid to be stored in the container.
  • the coating is degradable.
  • the coating may be applied to the entire inner surface of the container or at least a part of the inner surface of the container.
  • a mixture of different types of coating may be used on the interior surface, e.g. one type of coating may be used for a part of the inner surface and another type of coating may be used for a different part of the inner surface.
  • the coating may advantageously be approved for use with foodstuffs, such as beverages.
  • the container may further comprise a liquid impermeable coating at an exterior surface thereof providing protection of the pulp material in the container when exposed to liquids from external sources.
  • the exterior coating may be applied to the entire outer surface. A mixture of different types of coating may be used.
  • the coating is degradable.
  • the coating may be applied to the entire outer surface of the container or at least a part of the outer surface of the container.
  • a mixture of different types of coating may be used on the outer surface, e.g. one type of coating may be used for a part of the outer surface and another type of coating may be used for a different part of the outer surface.
  • a fifth aspect of the present invention relates to a container comprising a first portion and a second portion, where the first portion have a first diameter and the second portion have a second diameter and the second diameter being larger than the first diameter, the first portion including an opening, a threaded portion being provided at the first portion.
  • the container has one opening.
  • the threaded portion is advantageously located at the opening so that a closure device may be provided to establish a good closure for the container. The closure device will then ensure that the content in the container is kept inside the container until the closure device is removed.
  • the first portion of the container may be a neck portion.
  • the container may be shaped as a conventional bottle having a larger diameter where the liquid is stored and a smaller diameter at the neck portion wherefrom the liquid may be dispensed.
  • the threaded portion is provided at the outside of the first portion and the closure device is to be fastened.
  • the threaded part is provided as a helical thread.
  • the closure device is then to be provided with a matching thread so that the closure device may be screwed onto the first portion of the container.
  • a sixth aspect of the present invention relates to an apparatus for producing a container defining a container geometry.
  • the apparatus may comprise a supporting base supporting a mold having a mold cavity defining the exterior of the container geometry, the mold including an opening.
  • the apparatus may further comprise a pulp material feeding device configured to enter the mold via the opening, a pulp material reservoir in
  • the apparatus may further comprise a flexible device having an inlet part attached at the opening of the mould the flexible device being configured to be inserted into the mold via the opening, a gas source in communication with the flexible device to selectively inflate and/or deflate the flexible device and the flexible device being semi-permeable or partly permeable to the gas so as to allow gas to pass or diffuse from the flexible device through the flexible device and further through pulp material present at the mold cavity so as to dry the pulp material.
  • the apparatus according to the sixth aspect is contemplated to be advantageous in that it allow gas to be transferred from the flexible device through the pulp material present in the mould.
  • the pulp material is wet when applied.
  • the amount of water in the pulp may vary between pulp batches.
  • the gas then helps dry and/or cure the pulp material so as to establish a strong, at least partly rigid, product.
  • heat may be applied to the pulp material from the inside.
  • heat may be applied to the pulp material via the mould it self.
  • the gas used may be at a temperature similar to that of the sourroundings.
  • the flexible device then simply applies pressure to the pulp material thereby sqeezing the pulp material.
  • the flexible device may be made from a non-expandable material. This is contemplated to provide the most durable flexible device.
  • the device may be compacted so as to be inserted into the mould via an opening and subsequently be inflated so as to press the wet pulp material.
  • the flexible device is made from a wowen material. This is contemplated to allow use of heated gas at a relatively high pressure.
  • the wowen material also yields a flexible device that is semipermeable so as to allow gas, i.e. at least air, to pass through at a given rate.
  • the mould have a gas inlet and a gas outlet
  • the apparatus may further comprise a first heating chamber having a first heating chamber inlet and a first heating chamber outlet, a second heating chamber having a second heating chamber inlet and a second heating chamber outlet, a gas path defined from an apparatus inlet to an apparatus outlet where gas is transported via the gas path, the gas path including from the apparatus inlet to the first heating chamber inlet further to the first heating chamber outlet, from the first heating chamber outlet to the second heating chamber inlet, from the the second heating chamber inlet to the second heating chamber outlet, from the mould inlet to the mould outlet, from the mould outlet to the apparatus outlet.
  • the system may advantageously use of pressureised atmospheric air at room temperature. Room temperature can vary but is usually considered as around 18-20 degrees C.
  • the flexible device is attached at the mould inlet, the flexible device being arranged to receive gas via the gas path so as to inflate the flexible device to a degree where it applies pressure to pulp material present in the mould chamber.
  • the first heating chamber includes a part of the gas path from the mould outlet to the apparatur outlet so as to allow gas in the part of the gas path to heat gas in the first heating chamber.
  • the reuse of heat provides a reduced energy use.
  • An eigth aspect of the present invention relates to method of manufacturing a product comprising a pulp body using an apparatus comprising a mould having an interior chamber and an opening in communication with the interior chamber and an inflatable device being permeable to gas, the method comprises applying and distributing wet pulp material to the interior chamber of the mould, inserting an inflatable device into the interior chamber, providing gas having a temperature in a first temperature interval at a first pressure for a first period of time so as to press the pulp material against the mould to dry the pulp material.
  • the method allow production of product from wet pulp material.
  • the product produced have high tensile strength, which is required for procuts for storing e.g. liquids.
  • Advantageosuly the first temperature interval may be 100 degrees C to 150 degrees C, such as 110 degrees C to 130 degrees C.
  • Gas that has been heated to this temperature from a lower temperature without adding moisture have a relative low humidity and may thus be used for absorbing liquid, i.e. mainly water, from the wet pulp material.
  • the first pressure may be in the interval 2-15 bar, such as 5 to 12 bar, such as 7 to 9 bar, such as around 8 bar.
  • a ninth aspect of the present invention relates to a product obtained using the method according to the eimate aspct. Such a product will be produced with a relatively low power consumption. The product will also have other advantages that are apparent from the description as a whole.
  • a tenth aspect of the present invention relates to an inflatable device adapted for applying pressure to a part of the interior of a container made from a pulp material.
  • a pulp material wet pulp material is used.
  • the wet pulp material is applied to a mould.
  • the pulp material In order to produce products from having sufficient strength the pulp material must be dried. Also compressing the pulp material increases strength.
  • the inflatable device is made from a material that allow a percentage of the gas used for inflating the inflatable device to pass through so as to dry the pulp material out while applying pressure to the pulp material.
  • Fig. 1 is a schematic perspective view of an apparatus for producing a container
  • Fig. 2 is a schematic top-view of an apparatus for producing a container
  • Fig. 3 is a schematic side-view of an apparatus for producing a container
  • Fig. 4 is a schematic view of a mold station
  • Fig. 5 is a schematic view of a part of an apparatus for producing a container seen from below,
  • Fig. 6 is a schematic view of a mold station with a pulp delivery device
  • Fig. 7 is a schematic view of a mold station with a pressure delivery device
  • Fig. 8 is a schematic view of a curing station
  • Figs. 9A-9G are schematic views of steps of a method for producing a container
  • Fig. 10 is a schematic illustration of a system for producing containers from pulp material while reusing heat. DESCRIPTION OF EMBODIMENTS
  • FIG. 1 An embodiment of the invention is illustrated in Fig. 1 which illustrates an apparatus 10 having a frame 12 and a base plate 14.
  • the base plate is supported by the frame 12.
  • the base plate 14 supports a molding station 16 and a curing station 18.
  • a second set of molding station and curing station is located opposite the stations 16 and 18.
  • the molding station 16 comprises first and second mold parts 22 and 24.
  • the first mold part 22 and second mold part 24 each comprising a half of the product, i.e. the female part of the mold or negative, as seen in e.g. Fig. 4.
  • the curing station 18 comprises first and second curing station parts 26 and 28.
  • the first curing station part 26 and the second curing station part 28 each comprise a female half of the geometry of the finished product.
  • the operation of the molding station 16 and the curing station 18 will be discussed in more detail below.
  • the apparatus 10 is configured for producing containers, specifically containers made from pulp material.
  • the pulp material is preferably paper pulp material that does not comprise recycled material.
  • the recycled material usually comprises materials that are not well suited for containers for foodstuff, e.g. print ink and the like. However, for certain containers this may not be an issue, e.g. if the container is to be used for storing oil or other liquid not suited for human consumption.
  • Fig. 2 is a top-down view of the apparatus 10.
  • the apparatus 10 comprises four stations, where two stations are molding stations 16, and two stations are curing stations 18. The curing stations may also be pressing stations as will be discussed.
  • the base plate 14 includes a rotatable part 20. A product is first formed at the mold station and then rotated to the curing station via the base plate 14.
  • Fig. 3 is a schematic side-view of the apparatus 10.
  • the figure also illustrates a pulp delivery part 30 that is configured to be in communication with the mold station 16.
  • a chamber is formed.
  • the chamber defines a negative of the product to be formed.
  • a pressure supply device 32 is also illustrated. The function of this will be discussed below.
  • Fig. 4 schematically illustrates a mold 34 comprising a negative or female image 36 of an object to be produced, here a part of a bottle-shaped product.
  • the mold 34 is part of the mold station 16.
  • An opening 38 is defined in one end of the image.
  • an external thread 40 is formed at the opening 38 .
  • the external thread 40 is to interface with a closure device, i.e. a cap or the like.
  • the cap to be fitted at the thread 40 could be made from a fibrous material similar to that of the container or a cap made from another material, such as plastic.
  • the cap could be coated with a coating suitable for foodstuff.
  • Fig. 4 further illustrates the pulp delivery part 30.
  • the two parts of the molding station namely the first and second mold parts 22 and 24, are assembled to form the mold the pulp delivery part 30 is moved into the interior chamber formed in the mold.
  • Fig. 5 schematically illustrates the apparatus where the molding station 16 and the curing station 18 are opened.
  • the apparatus 10 is viewed from below without the frame 12 or base plate 14.
  • the mold part 22 constitutes one half of the mold.
  • the mold part 22 may pivot about the point at 42.
  • a pulp delivery part 30 is introduced into the mold chamber 44 formed in the mold station 16 by the mold parts 22 and 24.
  • the pulp delivery part 30 is in communication with a pulp material reservoir, not illustrated here, wherefrom the pulp material is sprayed into the mold chamber 44.
  • the pulp material is a wet pulp material.
  • Fig. 7 schematically illustrates the molding station 16 where an expandable device 46 has been inserted into the chamber 44.
  • a device such as the flexible device 56 discussed below may be used.
  • the expandable device 46 is in the embodiment illustrated in Fig. 7 an inflatable balloon, made from silicone, but other materials may be used, e.g. latex.
  • the material used for the expandable device 44 is chosen so that the device may be used several times.
  • the expandable device 46 is also collapsible to that after use it may be removed from the inside of the product. The cost and durability may have an impact on the choice of material.
  • the expandable device 46 is shaped so as to match the inner geometry of the end-product.
  • the expandable device 46 could be viewed as a male part of a mold.
  • the expandable device 46 is expanded just enough so that the product is supported by the expandable device 46.
  • the mold station 16 is then opened, i.e. the two mold parts 22 and 24 are separated and the product is shifted or rotated to the curing station 18.
  • the product have a thickness of around 3 mm and is soft and fragile.
  • the expandable device 46 By introducing a specific amount of gas into the expandable device 46 the expandable device reach a certain size.
  • the expandable device 46 could be inflated to a volume of 3 dl and the end-product have a volume of approximately 5 dl.
  • the expandable device will have a geometry corresponding to the end-product, i.e. container, but with a smaller volume.
  • the expandable device 46 As the expandable device 46 is close to the product the product will not break despite being very fragile.
  • the product is supported by the expandable device 46 during the shift to the curing station 18.
  • the curing station 18 comprises the two parts 26 and 28.
  • a curing station chamber 48 is formed.
  • the expandable device 46 is expanded so that the pulp material is pressed against the inner walls of the curing station parts 26 and 28.
  • the curing station parts 26 and 28 are configured with steam ducts 50.
  • the steam ducts 48 lead steam or moisture from the product, which is generated when the product is under pressure from the expandable device 46. Further a vacuum pressure may be applied from the outside of the curing mold to speed up the process.
  • the expandable device 46 is deflated and twisted by a supporting member so that it may be retracted from the now cured product via the opening of the container. As the expandable device 46 is twisted around the supporting member it will not damage the product. If the expandable device 46 was allowed to simply deflate inside the product there is a risk that it will damage the product while it is being retracted. If the expandable device 46 is deflated by applying a low pressure or suction, the shape of the deflated expandable device 46 cannot be controlled.
  • the supporting member help control the shape of the expandable device 46 as it is being deflated.
  • a heating device may be applied to provide heat to the product during the pressing process so as to dry the molding material, i.e. the wet pulp material.
  • the product is heated to around 180 degrees C. After this curing process the product have a substantial strength and may be passed on to further processing, such as coating, printing or the like.
  • the expandable device 46 is deflated and retracted from the product and reused for the production of the next product.
  • Fig. 9A schematically illustrates a step of a method for producing a container.
  • paper pulp material 52 has been applied to the inside of a mould 54.
  • a flexible device 56 is attached at an inlet 58 of the mould.
  • An insertion device 60 is connected to the flexible device 56.
  • the insertion device 60 is configured to move into the interior of the mould 54 so as to deploy the flexible device 56 in the interior.
  • Fig. 9B schematically illustrates a step where the insertion device 60 is in an extreme position and the flexible device 56 is loosly deployed in the mould 54 cavity.
  • Fig. 9C schematically illustrates that a gas is introduced in the flexible device, illustrated by the arrows.
  • the flexible device 56 is at least partly permeable to the gas, meaning that a part of the gas introduced into the flexible device 56 is allowed to pass through the flexible device 56 wall and further through the pulp material 52, as indicated by the arrows 62.
  • Fig. 9D schematically illustrate that when a certain pressure is established in the flexible device 56, the flexible device 56 is in contact with the entire surface of the pulp material 52 and/or the mould 54 so as to press the pulp material 52.
  • the flexible device 56 is not expandable, which is contemplated to allow a relatively high gas pressure to be used, which in turn provides a faster drying of the wet pulp material 52 and provides a more compact pulp container wall. In other embodiments a device such as the expandable device 46 may be used.
  • Fig. 9E is a zoomed view illustrating that part of the gas passes through the flexible device 56 and through the pulp material 52. As the gas may be warm the heat may also contribute to a faster drying of the wet pulp material 52.
  • the flexible device 56 is deflated, either by evacuating some of the gas supplied, or simply by not adding any further gas to the flexible device 56. This is illustrated in Fig. 9F.
  • the insertion device may then be retracted, as illustrated in Fig. 9G, leaving the resulting product ready to be removed from the mould 54.
  • Fig. 10 schematically illustrates a system 62 where a pressurerised gas is supplied at a system inlet 64.
  • the gas is provided at a temperature indicated by the thermometer 68.
  • the gas is heated in a first heating chamber or heating station 66.
  • a return pipe 70 is passed through the first heating chamber 66 so as to allow reuse of some of the residual heat from the process.
  • the temperature is indicated by the thermometer 72.
  • the preheated gas is transferred to a second heating station or heating chamber 74 where the gas is heated to a desired target temperature, indicated by the thermometer 76.
  • the gas is supplied to a mould 78, as described above, where the heated gas is used for pressurerrzing a flexible device 80.
  • the gas escaping the mould 78 is returned for preheating the inlet gas in the first heating chamber 66.
  • the gas follows a gas path through the system 62.
  • the gas path is defined from the apparatus inlet 64 to an apparatus outlet 82 where gas is transported via the gas path.
  • the gas is pressureized before being introduced into the gas path illustrated.
  • the gas path is defined from the apparatus inlet to the first heating chamber inlet further to the first heating chamber outlet, from the first heating chamber outlet to the second heating chamber inlet, from the the second heating chamber inlet to the second heating chamber outlet, from the mould inlet to the mould outlet, from the mould outlet to the apparatus outlet.
  • the present invention may be charachterised by the following points:
  • Point 1 An apparatus for producing a container defining a container geometry, the apparatus comprising:
  • a frame comprising a base supporting at least one mold, the mold including an opening
  • a pulp material feeding device configured to reciprocally enter the mold via the opening
  • a pulp reservoir in communication with the pulp material feeding device, the pulp reservoir configured to hold a pulp material
  • a pulp pressure reservoir configured to provide pressure so as to deliver the pulp material from the pulp reservoir via the pulp material feeding device to the at least one mold
  • an expandable device configured to be inserted into the at least one mold via the opening, wherein the expandable device have a geometry corresponding to the container geometry.
  • Point 2 The apparatus according to point 1 further comprising a curing station for curing the container.
  • Point 3 A method for producing a container using an apparatus comprising:
  • a frame comprising a base supporting at least one mold, the mold including an opening to the interior of the mold,
  • a pulp material feeding device configured to reciprocally enter the mold via the opening
  • a pulp reservoir in communication with the pulp material feeding device, the pulp reservoir configured to hold a pulp material
  • a pulp pressure reservoir configured to provide pressure so as to deliver the pulp material from the pulp reservoir via the pulp material feeding device to the at least one mold
  • Point 4 The method according to point 3, wherein the apparatus further comprises a pressure application device configured to be inserted into the mold and apply pressure to pulp material within the mold.
  • Point 5 The method according to point 4, wherein the pressure application device is a flexible device configured to expand so as to provide the mentioned pressure to the pulp material within the mold, the method comprising supplying a pressure application device pressure to the pressure application device.
  • Point 6 A method of configuring a product by using an apparatus comprising:
  • a storage device for storing a molding material product for constituting part of the product
  • a molding material product delivery device configured for spraying the molding material product into the cavity
  • a pressure transfer device configured to be inserted into the cavity for transferring pressure to a part of the inside surface of the product
  • the method including:
  • Point 7 The method according to point 6, wherein the apparatus further comprises a curing device, the method further comprising: curing the product in the curing device.
  • Point 8 The method according to point 7, wherein the step of applying pressure to the part of the inside surface of the product via the pressure transfer device is performed at the curing station.
  • Point 9 The method according to any one of the points 6-8, wherein the pressure transfer device is an inflatable device and the application of pressure includes supplying gas at a pressure being higher than the surrounding air pressure.
  • Point 10 The method according to any one of the points 6-9, wherein the molding material product is a pulp material and the method comprises drying the pulp material after spraying the molding material product into the mold.
  • Point 11 The method according to any one of the points 3-10, further comprising applying a coating to the interior of the container.
  • Point 12 The method according to any one of the points 3-11, further comprising applying a coating to the exterior of the container.
  • Point 13 A container having a container body defining a longitudinal axis, the container body defining a maximum diameter at a point on the container body,
  • the container body defining a first end and an opposite second end, the first end and the second end being disposed in the longitudinal axis orientation, the first end being closed, the second end including an opening being smaller than the maximum diameter, and the container body being formed from a pulp material.
  • Point 14 The container according to point 13, further comprising a liquid impermeable coating at an interior surface therefor allowing the container to store a liquid.
  • Point 15 The container according to point 13 or 14, further comprising a liquid impermeable coating at an exterior surface thereof providing protection of the pulp material in the container when exposed to liquids from external sources.
  • Point 16 An apparatus for manufacturing a product comprising a pulp body, the apparatus comprising:
  • a mould having an interior chamber including a gas inlet and a gas outlet, a first heating chamber having a first heating chamber inlet and a first heating chamber outlet, a second heating chamber having a second heating chamber inlet and a second heating chamber outlet,
  • the gas path including from the apparatus inlet to the first heating chamber inlet further to the first heating chamber outlet, from the first heating chamber outlet to the second heating chamber inlet, from the the second heating chamber inlet to the second heating chamber outlet, from the mould inlet to the mould outlet, from the mould outlet to the apparatus outlet,
  • a flexible device insertable into the mould and being attached at the mould inlet, the flexible device being arranged to receive gas via the gas path so as to inflate the flexible device to a degree where it applies pressure to pulp material present in the mould chamber.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

La présente invention porte sur un appareil pour la production d'un récipient définissant une géométrie de récipient, l'appareil comprenant un châssis comprenant une base supportant au moins un moule, le moule comprenant une ouverture, un dispositif d'alimentation en matière sous forme de pâte conçu pour entrer selon un mouvement de va-et-vient dans le moule par l'ouverture, un réservoir de pâte en communication avec le dispositif d'alimentation en matière sous forme de pâte, le réservoir de pâte étant conçu pour contenir une matière sous forme de pâte, un réservoir de pression de pâte conçu pour fournir de la pression afin d'acheminer la matière sous forme de pâte du réservoir de pâte vers ledit ou lesdits moules en passant par le dispositif d'alimentation en matière sous forme de pâte et un dispositif extensible conçu pour être introduit dans ledit ou lesdits moules par l'ouverture, le dispositif extensible ayant une géométrie correspondant à la géométrie du récipient. La présente invention porte également sur un procédé pour la production d'un récipient utilisant un appareil comprenant un châssis comprenant une base supportant au moins un moule. La présente invention porte en outre sur un procédé de configuration d'un produit à l'aide d'un appareil comprenant un moule ayant une cavité définissant une géométrie. La présente invention porte en outre sur un récipient ayant un corps de récipient définissant un axe longitudinal, le corps de récipient ayant un diamètre maximal en un point sur le corps du récipient, le corps du récipient ayant une première extrémité et une seconde extrémité opposée, la première extrémité et la seconde extrémité étant disposées suivant l'axe longitudinal, la première extrémité étant fermée, la seconde extrémité comprenant une ouverture qui est plus petite que le diamètre maximal et le corps du récipient étant formé à partir d'une matière sous forme de pâte.
PCT/DK2012/050126 2011-04-15 2012-04-13 Récipient Ceased WO2012139590A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12717169.2A EP2697429A1 (fr) 2011-04-15 2012-04-13 Récipient

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161475880P 2011-04-15 2011-04-15
US61/475,880 2011-04-15
EP11165671A EP2522772A1 (fr) 2011-05-11 2011-05-11 Conteneur
EP11165671.6 2011-05-11

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Publication Number Publication Date
WO2012139590A1 true WO2012139590A1 (fr) 2012-10-18

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WO2016200804A1 (fr) 2015-06-10 2016-12-15 R. J. Reynolds Tobacco Company Récipient pour produits de tabac sans fumée comprenant une matière de pâte, et ensemble produit emballé et procédé associés
WO2018033208A1 (fr) 2016-08-18 2018-02-22 Mayr-Melnhof Karton Ag Procédé de fabrication d'un article moulé à partir de pâte, article moulé constitué de pâte, et appareil de fabrication d'un tel article moulé
WO2018033210A1 (fr) * 2016-08-18 2018-02-22 Mayr-Melnhof Karton Ag Procédé de fabrication d'un article moulé à partir de pulpe, article moulé fait de pulpe et appareil de fabrication d'un tel article moulé
WO2018060165A1 (fr) 2016-09-27 2018-04-05 Carlsberg Breweries A/S Fermeture en pâte de fibres végétales destinée à un récipient et procédé de fabrication d'un récipient en pâte de fibres végétales doté d'une fermeture
US9936729B2 (en) 2014-10-16 2018-04-10 R.J. Reynolds Tobacco Company Package for a tobacco-containing material and related packaging method
US9968130B2 (en) 2014-10-16 2018-05-15 R.J. Reynolds Tobacco Company Package for a tobacco-containing material with a valve assembly and related packaging method
WO2021069584A1 (fr) 2019-10-10 2021-04-15 Paper Bottle Company A/S Récipient à base de fibres et procédé de production
US11020883B2 (en) 2016-03-18 2021-06-01 Pulpac AB Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
WO2022058589A1 (fr) 2020-09-21 2022-03-24 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de coupe et table de fabrication comportant le dispositif
WO2022063717A1 (fr) 2020-09-23 2022-03-31 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé, système, et machine de moulage par soufflage pour le moulage par soufflage d'un récipient
US11365518B2 (en) 2016-07-26 2022-06-21 Natural Resources (2000) Limited Moulding of articles
WO2023017065A1 (fr) 2021-08-11 2023-02-16 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé et dispositif de charge d'un récipient à base de fibre avec une préforme et d'insertion du récipient dans un moule de soufflage
WO2023118058A1 (fr) 2021-12-21 2023-06-29 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de découpe et procédé de fabrication d'un récipient
WO2023232880A1 (fr) 2022-06-01 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé, moule de coulée et dispositif de fabrication
WO2023232995A1 (fr) 2022-06-03 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé et dispositif pour réduire la teneur en eau d'une ébauche à base de fibres
WO2023232996A1 (fr) 2022-06-03 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Moule de presse pour recevoir une ébauche à base de fibres, et procédé pour réduire la teneur en eau dans une ébauche à base de fibres
WO2024003552A1 (fr) * 2022-06-30 2024-01-04 Pulpex Limited Procédé, ainsi que système de moule
WO2024046984A1 (fr) 2022-08-30 2024-03-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé de fabrication d'un produit à base de fibres à partir de pâte de bois
WO2024046976A1 (fr) 2022-08-30 2024-03-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé de revêtement d'une préforme séchée
EP4421237A1 (fr) 2023-02-27 2024-08-28 Paper Bottle Company A/S Procédé d'introduction d'un outil extensible dans un récipient
WO2024256714A1 (fr) 2023-06-16 2024-12-19 Alpla Werke Alwin Lehner Gmbh & Co. Kg Pâte pour la production d'une préforme à base de fibres
GB2634548A (en) * 2023-10-12 2025-04-16 Pulpex Ltd A method and system
WO2025120115A1 (fr) 2023-12-06 2025-06-12 Alpla Werke Alwin Lehner Gmbh & Co. Kg Moule de compression pour recevoir une ébauche à base de fibres

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DE102017214471A1 (de) * 2017-08-18 2019-02-21 Sig Technology Ag Ein Verfahren zum Herstellen eines Behälters aus einer Zusammensetzung, beinhaltend eine Flüssigkeit und eine Vielzahl von Partikeln
DE102017214473A1 (de) * 2017-08-18 2019-02-21 Sig Technology Ag Ein Verfahren zum Herstellen eines Behälters aus einer Zusammensetzung, beinhaltend eine Flüssigkeit und eine Vielzahl von Partikeln, insbesondere unter Einhaltung einer maximalen Geschwindigkeit der Zusammensetzung
DE102017214469A1 (de) 2017-08-18 2019-02-21 Sig Technology Ag Ein Verfahren zum Herstellen eines Behälters aus einem Behälterrohling, insbesondere mit einem Verringern einer Höhe des Behälterrohlings
GB2619062B (en) * 2022-05-26 2024-09-11 Pulpex Ltd Mandrel system and method
DE102022121467A1 (de) * 2022-08-25 2024-03-07 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Herstellen und Behandeln eines Behälters aus Faser umfassendem Material in einer Form
DE102022121459A1 (de) * 2022-08-25 2024-03-07 Krones Aktiengesellschaft Verfahren zum Herstellen eines Fasern umfassenden Behälters und Vorrichtung
DE102023101647A1 (de) * 2023-01-24 2024-07-25 Krones Aktiengesellschaft Behälter mit einem Fasern umfassenden, einteiligen Behälterkörper und einem Verschluss dafür, Verfahren zum Herstellen eines Behälterkörpers, Vorrichtung und Verfahren zum Verschließen eines Behälterkörpers mittels eines Verschlusses
DE102023107926A1 (de) 2023-03-29 2024-10-02 Krones Aktiengesellschaft Kronkorken zum Anbringen auf einer Mündungsöffnung eines Fasern umfassenden Behälters und zum Verschließen der Mündungsöffnung mittels des Kronkorkens, Behälter mit einem Fasern umfassenden Behälterkörper und mit einem Kronkorken, Fasern umfassender Behälterkörper, Verfahren zum Anordnen des Kronkorkens auf dem Fasern umfassenden Behälterkörper und Vorrichtung zum Anordnen des Kronkorkens auf dem Fasern umfassenden Behälterkörper
GB2631428A (en) * 2023-06-29 2025-01-08 Pulpex Ltd Transfer device

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US9968130B2 (en) 2014-10-16 2018-05-15 R.J. Reynolds Tobacco Company Package for a tobacco-containing material with a valve assembly and related packaging method
US12137734B2 (en) 2014-10-16 2024-11-12 R. J. Reynolds Tobacco Co. Package for a tobacco-containing material and related packaging method
US11006665B2 (en) 2014-10-16 2021-05-18 R.J. Reynolds Tobacco Company Package for a tobacco-containing material and related packaging method
US10701968B2 (en) 2014-10-16 2020-07-07 Rai Strategic Holdings, Inc. Package for a tobacco-containing material with a valve assembly and related packaging method
US9936729B2 (en) 2014-10-16 2018-04-10 R.J. Reynolds Tobacco Company Package for a tobacco-containing material and related packaging method
US11622575B2 (en) 2015-06-10 2023-04-11 R. J. Reynolds Tobacco Company Container for smokeless tobacco products comprising a pulp material and related packaged product assembly and method
WO2016200804A1 (fr) 2015-06-10 2016-12-15 R. J. Reynolds Tobacco Company Récipient pour produits de tabac sans fumée comprenant une matière de pâte, et ensemble produit emballé et procédé associés
US11147309B2 (en) 2015-06-10 2021-10-19 R.J. Reynolds Tobacco Company Container for smokeless tobacco products comprising a pulp material and related packaged product assembly and method
US11839999B2 (en) 2016-03-18 2023-12-12 Pulpac AB Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
US11766810B2 (en) 2016-03-18 2023-09-26 Pulpac AB Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
US12134214B2 (en) 2016-03-18 2024-11-05 Pulpac AB Method for manufacturing a cellulose product by a pressure moulding apparatus, pressure moulding apparatus and cellulose product
US11020883B2 (en) 2016-03-18 2021-06-01 Pulpac AB Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
EP3967615A1 (fr) * 2016-03-18 2022-03-16 PulPac AB Procédé de fabrication d'un produit de cellulose, appareil de formation de produit de cellulose et produit de cellulose
US12134215B2 (en) 2016-03-18 2024-11-05 Pulpac AB Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product
US11407149B2 (en) 2016-03-18 2022-08-09 Pulpac AB Method for manufacturing a cellulose product by a pressure moulding apparatus
US11365518B2 (en) 2016-07-26 2022-06-21 Natural Resources (2000) Limited Moulding of articles
WO2018033208A1 (fr) 2016-08-18 2018-02-22 Mayr-Melnhof Karton Ag Procédé de fabrication d'un article moulé à partir de pâte, article moulé constitué de pâte, et appareil de fabrication d'un tel article moulé
WO2018033210A1 (fr) * 2016-08-18 2018-02-22 Mayr-Melnhof Karton Ag Procédé de fabrication d'un article moulé à partir de pulpe, article moulé fait de pulpe et appareil de fabrication d'un tel article moulé
WO2018060165A1 (fr) 2016-09-27 2018-04-05 Carlsberg Breweries A/S Fermeture en pâte de fibres végétales destinée à un récipient et procédé de fabrication d'un récipient en pâte de fibres végétales doté d'une fermeture
CH716689A1 (de) * 2019-10-10 2021-04-15 Paper Bottle Company As Faserbasierter Behälter und Verfahren zur Herstellung.
WO2021069584A1 (fr) 2019-10-10 2021-04-15 Paper Bottle Company A/S Récipient à base de fibres et procédé de production
WO2022058589A1 (fr) 2020-09-21 2022-03-24 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de coupe et table de fabrication comportant le dispositif
WO2022063717A1 (fr) 2020-09-23 2022-03-31 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé, système, et machine de moulage par soufflage pour le moulage par soufflage d'un récipient
WO2023017065A1 (fr) 2021-08-11 2023-02-16 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé et dispositif de charge d'un récipient à base de fibre avec une préforme et d'insertion du récipient dans un moule de soufflage
WO2023118058A1 (fr) 2021-12-21 2023-06-29 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de découpe et procédé de fabrication d'un récipient
WO2023232880A1 (fr) 2022-06-01 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé, moule de coulée et dispositif de fabrication
WO2023232996A1 (fr) 2022-06-03 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Moule de presse pour recevoir une ébauche à base de fibres, et procédé pour réduire la teneur en eau dans une ébauche à base de fibres
WO2023232995A1 (fr) 2022-06-03 2023-12-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé et dispositif pour réduire la teneur en eau d'une ébauche à base de fibres
WO2024003552A1 (fr) * 2022-06-30 2024-01-04 Pulpex Limited Procédé, ainsi que système de moule
WO2024046976A1 (fr) 2022-08-30 2024-03-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé de revêtement d'une préforme séchée
WO2024046984A1 (fr) 2022-08-30 2024-03-07 Alpla Werke Alwin Lehner Gmbh & Co. Kg Procédé de fabrication d'un produit à base de fibres à partir de pâte de bois
WO2024179982A1 (fr) 2023-02-27 2024-09-06 Paper Bottle Company A/S Procédé d'introduction d'un outil expansible dans un récipient
EP4421237A1 (fr) 2023-02-27 2024-08-28 Paper Bottle Company A/S Procédé d'introduction d'un outil extensible dans un récipient
WO2024256714A1 (fr) 2023-06-16 2024-12-19 Alpla Werke Alwin Lehner Gmbh & Co. Kg Pâte pour la production d'une préforme à base de fibres
GB2634548A (en) * 2023-10-12 2025-04-16 Pulpex Ltd A method and system
WO2025078840A3 (fr) * 2023-10-12 2025-05-15 Pulpex Limited Procédé et système
WO2025120115A1 (fr) 2023-12-06 2025-06-12 Alpla Werke Alwin Lehner Gmbh & Co. Kg Moule de compression pour recevoir une ébauche à base de fibres

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