EP4133128A1 - Couvercle à base de fibres naturelles avec contre-dépouille - Google Patents
Couvercle à base de fibres naturelles avec contre-dépouilleInfo
- Publication number
- EP4133128A1 EP4133128A1 EP21717805.2A EP21717805A EP4133128A1 EP 4133128 A1 EP4133128 A1 EP 4133128A1 EP 21717805 A EP21717805 A EP 21717805A EP 4133128 A1 EP4133128 A1 EP 4133128A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- station
- forming
- tool
- preformed
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
-
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/06—Removable lids or covers having a peripheral channel embracing the rim of the container
- B65D43/065—Removable lids or covers having a peripheral channel embracing the rim of the container the peripheral channel having an inverted U-shape
Definitions
- the invention relates to a manufacturing component as a first tool in a forming station to form an undercut, a forming station with such a manufacturing component, a forming device comprising such forming station, an endformed lid manufactured with such forming station comprising an undercut and a methode to manufacture such lid with undercut.
- plastic lids commonly comprise an undercut to obtain a secure closure of the container to prevent unintentional lifting of the lid of the container and thus unintentional leakage of the container contents.
- the undercut is used as a haptic or acoustic feedback to the user when closing the container with the lid hearing or feeling a click, when the lid is arranged on top of the container and the undercut snaps onto the container in a safe position.
- lids made from natural fibres the preparation of such undercut is difficult. Tool technology for forming machines to manufacture lids with undercuts providing such feedback relaible are not available yet. Therefore lids made from natural fibre material cannot replace plastic lids without loss of security.
- a manufacturing component to be used as a first tool in a forming station at least for endforming a preformed lid made from a material comprising natural fibres, the preformed lid comprising a top part and a side part circumferencing the top part, where the manufacturing component is adapted to contact an outer side of the preformed lid to endform the preformed lid by exerting a first movement in axial direction along a center axis of the manufacturing component and a later second movement in a second direction towards the side part of the preformed lid, where multiple side forming elements of the manufacturing component are arranged to exert the second movement applying an outer pressure onto an outer side of the side part to form an undercut into the side part.
- undercut is necessary to provide a reliable haptic or accoustic feedback to users when closing containers such as coffee cups etc. informing the user about an established and safe closure of the container.
- Containers containing dangerous content e.g. hot liquids, should be closed safty in order to protect the user.
- the user can be sure not to get into contact with the dangerous content in an unintended way, e.g. by spilling hot coffee on their fingers.
- undercut denotes a suitable bended or curved shape within a component (the lid) interacting with another component (e.g. a container) when connecting both components (container and lid forming a closed container) together.
- the undercut engages with a corresponding counter-shape of the other component or snaps behind a bead or edge of the other component in order to securely fix one component mechanically to the other component.
- the undercut within the lid may have different shapes within the scope of the present invention depending on the properties of the corresponding container.
- the second movement executed by the side forming elements is directed towards the side part of the preformed lid, in which the undercut shall be introduced.
- the second movement is directed perpendicular to the outer side of the side part. Since the side part has a shape surrounding the top of the lid, the side forming elements have a similar shape in order to preferably fully contact the side part with the inner side of the side forming elements.
- the second movement is directed radially to the center axis of the manufacturing component, which is the symmetric axis of the circular lid.
- to endform the lid denotes the particular manufacturing step to finalize the shape of the lid. Endforming does not exclude that additional production steps not changing the shape of the lid may follow after having endformed the lid. Endforming does also not limit or exclude any production step before the endforming takes place.
- the lid might be provided as already existing preform or the materials of the lid may provided in other forms, e.g. as sheet material and will be preformed in the preforming station or directly within the forming station.
- the lid may have any suitable shape to close the corresponding container, which also may have any suitable shape.
- Lids have a top part and a side part circumferencing the top part. Common lids may be circular or rectangular. However any other shape of lids and containers may also be possible.
- the manufacturing component and the forming station according to the present invention are suited to make undercuts into side parts of lids not limited to a particular shape of the lids as well as not limited to a particular shape of the undercuts.
- the material of the lid comprises natural fibres.
- the material may comprise additional other material, e.g. applied as a composite material together with the natural fibres or applied as an additional layer on top of the natural fibre material. Such layer or multiple layers may be applied onto the outer side or the inner side of the lid.
- the lid is fully covered by such layers.
- the lid may consist of natural fibre material. In any case the natural fibre material may be impregnated with other material to increases a resistance or impermeability at least against liquids and/or moisture.
- the manufacturing component is used as a tool in a forming station.
- the manufacturing component can be an upper or lower tool in the forming station depending on the particular forming station and forming process.
- moving one tool on top of another tool does not imply any moving direction, especially not that the moved one tool is arranged above the other tool. This term simply denotes, that both tools are moved together at least during forming the undercut.
- the manufacturing component according to the present invention provides a tool technology enabling to manufacture lids from natural fibre materials providing the common safty level for closing containers with such lids by forming undercuts into the endformed lids.
- the side forming elements are arranged around the center axis, wherein the side forming elements are suitably shaped to provide a free space between adjacent side forming elements prior to exerting the second movement.
- the arrangement around the center axis enables the side forming elements to introduce an undercut along the whole side part of the side of the preformed lid.
- the free spaces enable all side forming elements to apply a defined outer pressure to the whole side part of the preformed lid, since the side forming elements have enough moving freedom to fully contact the side part without being hampered due to mechanical contact between neighbored side forming elements.
- the manufacturing component comprises at least three side forming elements, preferably four to six side forming elements, more preferably seven to nine side forming elements, even more preferably ten side forming elements.
- the applied outer pressure will be more homogeneous around the side part of the preformed lid.
- the complexity of the mechanical construction to perform the second movement with all side forming elements will increase with the number of side forming elements.
- the above specified numbers of side forming elements are a good compromise between homogeneity of the applied outer pressure and the effort to build and maintain the mechanical contruction to perform the second movement.
- the second direction is a radial direction towards the center axis and the side forming elements are arranged circularly around the center axis.
- the side forming elements each comprises an inner side directed towards the outer side of the side part of the preformed lid, where each inner side has a contour adapted to a desired shape of the undercut.
- the side forming elements are suitably shaped to provide an undercut circumferenting the side part of the preformed lid.
- An undercute which is located along the whole side part of the lid will provide a very safe closure of the container.
- a circumferenting undercut will provide a more secure closing of the container.
- at least a part of the surfaces of the manufacturing component intended to be in contact with the natural fibre material of the preformed lid is made of a material with decreased friction or adhesion properties. Friction or adhesion can be reduced by smoothing the surface of the manufacturing component.
- the manufacturing component might be established from a material, which surface can be polished.
- the manufacturing component can be at least locally covered with a smooth coating.
- Preferable at least the inner side of the side forming elements are made of the material with decreased friction or adhesion properties or coated with at least one layer of this material.
- the present invention also relates to a forming station comprising first and second tools at least for endforming a preformed lid, where a manufacturing component according to the present invention is the first tool, preferably an upper tool, and the second tool, preferably a lower tool, is adapted to at least carry the preformed lid, where at least one motor system is adapted to move the first tool on top of the second tool with the preformed lid inbetween in a first movement and in a later second movement to move the side forming elements of the first tool towards the side part of the preformed lid applying an outer pressure onto onto an outer side of the side part to form an undercut into the side part.
- a manufacturing component according to the present invention is the first tool, preferably an upper tool
- the second tool preferably a lower tool
- at least one motor system is adapted to move the first tool on top of the second tool with the preformed lid inbetween in a first movement and in a later second movement to move the side forming elements of the first tool towards the side part of the preformed lid applying an outer pressure onto onto
- the forming station according to the present invention provides a tool technology enabling to manufacture lids from natural fibre materials providing the common safty level for closing containers with such lids by forming undercuts into the endformed lids.
- the second tool acts as a counter part for the first tool when forming the undercut.
- the second tool is suitably shaped to at least support an inner side of the side part during application of the outer pressure to the outer side of the side part by the side forming elements, so that the undercut is reliably formed by the side forming elements.
- the second tool comprises a counter part to support the inner side of the side part, where a contour of the counter part is adapted to a desired shape of the to be form undercut at the inner side of the side part.
- the counter part is diveded in movable counter part elements, which are adapted to move towards the center axis in order to enable an easy release the endformed lid after being endformed.
- the forming station is adapted to receive the preformed lid from a preforming station.
- the degree of automation of the production process is increased also resulting in a more effective and faster process.
- the forming station is adapted to preform the lid prior to endforming the preformed lid.
- the number of required process stations is reduced enabling to provide a more compact process.
- the material is a provided as sheet material for preforming the lid.
- a sheet material enables a quasi continuous production process. The material in form of sheet material can be handled more easy and less space consuming compared to a paper pulp process.
- the sheet material is provided directly to the forming station, where the forming station preforms and endforms the lid.
- both first tool and second tool are moved by the motor system to place the upper tool on top of the second tool, preferably both tools are moved simultaneously. Moving both components result in a decrease opening and closing time of first and second tools of the forming station.
- the present invention further relates to a forming device comprising a forming station according to the present invention and a preforming station, where the preforming station is adapted to preform a lid from a material comprising natural fibres and the forming station is adapted to receive the preformed lid from the preforming station and to provide an endformed lid comprising an undercut within a side part of the endformed lid.
- the preforming station as part of the forming device allows to control both production steps, the preforming and the endforming, in one device allowing a better process controll and better endforming quality.
- the forming device provides a tool technology enabling to manufacture lids from natural fibre materials providing the common safty level for closing containers with such lids by forming undercuts into the endformed lids.
- the forming device further comprises a transfer station transporting the preformed lid to the forming station for enforming the preformed lid. This also increases the degree of automation of the production process further resulting in a more effective and faster process.
- the forming device also comprises a stacking station to stack the endformed lids outputed from the forming station.
- the material is provided as a sheet material to the preform station to preform the lid from the sheet material.
- a sheet material enables a quasi continuous production process.
- the material in form of sheet material can be handled more easy and less space consuming compared to a paper pulp process.
- the preforming station applies a paper pulp process to preform the lid.
- the use of natural fibres to form products is a long existing demand. Natural fibre products are available on the market today, however quality and performance do not meet the requierements of containers for food products
- the raw material basis here, as in most fibre-processing processes, is the pulp.
- the pulp consists of water, natural fibres and a binding agent such as industrial starch (potato starch) and has a pulpy consistency.
- pulp refers to fluid masses containing fibres, here the environmentally friendly degradable fibre material.
- liquid here refers to the aggregate state of the pulp, whereby the liquid pulp comprises the environmentally degradable fibre material in the form of fibres.
- the fibres can be present as individual fibres, as fibre structures or fibre groups consisting of several coherent fibres.
- the fibers represent the fiber material regardless of whether they are present in the pulp as individual fibers, as fiber formations or fiber groups.
- the fibres are dissolved in the liquid solution in such a way that they float in the liquid solution with as equal a concentration as possible regardless of location, for example as a mixture or suspension of liquid solution and fibre material.
- the present invention further relates to an endformed lid made of a material comprising natural fibres, the endformed lid comprises a top part and a side part circumferencing the top part and an undercut in the side part formed by a forming station according to the present invention, preferably the undercut circumferences the side part.
- the material of the endformed lid comprises natural fibres.
- the material may comprise additional other material, e.g. applied as a composite material together with the natural fibres or applied as an additional layer on top of the natural fibre material. Such layer or multiple layers may be applied onto the outer side or the inner side of the lid. In an embodiment the endformed lid is fully covered by such layers.
- the layers or additivive material to the natural fibre material may be applied before or after endforming of the lid.
- the endformed lid may consist of natural fibre material.
- the natural fibre material may be impregnated with other material to increases a resistance or impermeability at least against liquids and/or moisture.
- the endformed lid according to the present invention results from a tool technology enabling to manufacture lids from natural fibre materials providing the common safty level for closing containers with such lids by forming undercuts into the endformed lids.
- the invention further relates to a method to provide endformed lids made of a material comprising natural fibres with a forming station according to the present invention with a manufacturing component according to the present invention as a first tool and a second tool, where a preformed lid comprises a top part and a side part circumferencing the top part, comprising the steps of: providing a preformed lid; performing a first movement in axial direction along a center axis of the manufacturing component at least with the first tool to contact an outer side of the lid; performing a following second movement in second direction with multiple side forming elements of the first tool moved towards the center axis of the lid to apply an outer pressure onto an outer side of the side part of the lid to form an undercut into the side part to establish the endformed lid; and outputing the endformed lid with the undercut in the side part.
- the method according to the present invention allows to use a tool technology enabling to manufacture lids from natural fibre materials providing the common safty level for closing containers with such lids by forming undercuts into the endformed lids.
- the method further comprises the step of preforming the material in a preforming station to provide the preformed lid.
- the method further comprises the steps of transferring the preformed lid from the preforming station to the forming station with a transfer station; and/or stacking the endformed lids outputed from the forming station by a stacking station.
- the method further comprises the step providing the material as a sheet material to the preforming station for the preforming step.
- the step of preforming the material applies a paper pulp process.
- the step of preforming the material might be executed in the forming station prior to endforming the preformed lid, where the forming station can perform the function of the preforming station, preferably the material is provided as a sheet material to the forming station.
- the forming station may preform the lid in a different way compared to the process applied in the preforming station or applied in any other station for preforming the lid.
- Fig.1 forming station with manufacturing component as upper tool according to the present invention
- Fig.2 endformed lid with undercut according to the present invention
- Fig.3 side forming elements (a) before the second movement and (b) after the second movement for generating the undercut;
- Fig.4 schematic view of (a) the counter part of the second tool and (b) the forming station in a side view;
- Fig.5 forming device according to the present invention.
- Fig.6 method to provide endformed lids made of natural fibre material according the present invention. Detailed embodiments
- Fig.l shows a forming station 10 comprising first and second tools 1, 20 at least for endforming a preformed lid 100 made from a material M comprising natural fibres, where the first tool 1 is an upper tool, and the second tool 20 is a lower tool adapted to at least carry the preformed lid 100, where at least one motor system 30 is adapted to move the first tool 1 on top of the second tool 20 with the preformed lid 100 inbetween in a first movement FM and in a later second movement SM to endform the preformed lid 100 to comprise an undercut 140.
- a manufacturing component 1 establish the first tool 1 in the forming station 10.
- the preformed lid 100 comprising a top part 130 and a side part 110 circumferencing the top part 130.
- the manufacturing component 1 (first tool) is adapted to contact an outer side 110 of the preformed lid 100 to endform the preformed lid 100 by exerting a first movement FM in axial direction along a center axis R of the manufacturing component 1.
- first tool 1 and second tool 20 are moved by the motor system 30 to place the upper tool 1 on top of the second tool 20, preferably both tools 1, 20 are moved simultaneously.
- a second movement SM in a second direction towards the side part 120 of the preformed lid 100 is executed by the manufacturing component 1.
- Multiple side forming elements 2 of the manufacturing component 1 are arranged to exert the second movement SM applying an outer pressure PA onto an outer side 110 of the side part 120 to form an undercut 140 into the side part 120.
- the surfaces of the manufacturing component 1 intended to be in contact with the material M of the preformed lid 100 is made of a material with decreased friction or adhesion properties.
- the second tool 20 is suitably shaped to at least support an inner side 150 of the side part 120 during application of the outer pressure to the outer side 110 of the side part 110 by the side forming elements 2, so that the undercut 140 is reliably formed by the side forming elements 2.
- the forming station 10 is adapted to receive the preformed lid 100 from a preforming station 50. Alternatively the forming station 10 might be adapted to preform the lid 100 prior to endforming the preformed lid 100.
- the material M might be a provided as sheet material for preforming the lid 100.
- Fig.2 shows an endformed lid 100' with undercut 140 according to the present invention made of a material M comprising natural fibres.
- the endformed lid 100 ' comprises a top part 130 and a side part 110 circumferencing the top part 130 having an outer side 110 and an inner side 150.
- the outer side 110 denotes the outer side of the top of the lid as well as the side part 120 of the lid 100 ' .
- the lid 100 ' further comprises an undercut 140 in the side part 120 formed by a forming station 10 according to the present invention.
- the undercut 140 circumferences the side part 120.
- the numerals for side part 120, the outer side 110, the inner side 150 and the top part 130 shown here in relation to the endformed lid 100 ' also applies to the preformed lid 100.
- Fig.3 shows side forming elements 2 (a) before the second movement SM and (b) after the second movement SM for generating the undercut 140.
- the side forming elements 2 are arranged around the center axis R, wherein the side forming elements 2 are suitably shaped to provide a free space 21 between adjacent side forming elements 2 prior to exerting the second movement SM, see fig.3 a.
- the manufacturing component 1 here comprises four side forming elements 2 arranged symetrically to each other. Other embodiment may have different numbers of side forming elements 2.
- the preformed lid 100 is circular with circumferencing side part 110
- the second direction for the second movement SM is a radial direction towards the center axis R
- the side forming elements 2 are arranged circularly around the center axis R.
- the side forming elements 2 each comprises an inner side 2i directed towards the outer side 110 of the side part 120, where each inner side 2i has a contour adapted to a desired shape of the undercut 140, where the side forming elements 2 are suitable shaped to provide an undercut 140 circumferenting the side part 120 of the preformed lid 100.
- At least the inner side 2i of the side forming elements 2 might bee made of the material with decreased friction or adhesion properties or coated with at least one layer of this material.
- Fig.4 shows a schematic view of (a) the counter part 40 of the second tool 20 and (b) the forming station 10 in a side view.
- the second tool 20 comprises a counter part 40 to support the inner side 150 of the side part 120 of the preformed lid 100, where a contour of the counter part 40 is adapted to a desired shape of the to be form undercut 140 at the inner side 150 of the side part 120.
- the counter part 40 is diveded in movable counter part elements 45 (see fig.4a), which are adapted to move towards the center axis R in order to release the endformed lid 100 ' from the forming station 10 after being endformed.
- Fig.5 shows a forming device 80 according to the present invention comprising a forming station 10 according to the present invention and a preforming station 50.
- the preforming station 50 is adapted to preform a lid 100 from a material M comprising natural fibres.
- the forming station 10 is adapted to receive the preformed lid 100 from the preforming station 50 and to provide an endformed lid 100 ' comprising an undercut 140 within a side part 120 of the endformed lid 100 ' .
- the forming device 80 further comprises a transfer station 60 transporting the preformed lid 100 to the forming station 10 for enforming the preformed lid 100 and a stacking station 70 to stack the endformed lids 100 ' outputed from the forming station 10.
- the material M is provided as a sheet material to the preform station 50 to preform the lid 100 from the sheet material.
- the preforming station 50 may apply a paper pulp process to preform the lid 100.
- Fig.6 shows a method 200 to provide endformed lids 100 according the present invention made of material M comprising natural fibres with a forming station 10 according to the present invention with a manufacturing component 1 according to the present invntion as a first tool and a second tool 20, where a preformed lid 100 comprises a top part 130 and a side part 110 circumferencing the top part 130, comprising the steps of providing 210 the preformed lid 100; performing 220 a first movement FM in axial direction along a center axis R of the manufacturing component 1 at least with the first tool 1 to contact an outer side 110 of the lid 100; performing 230 a following second movement SM in second direction with multiple side forming elements 2 of the first tool 1 moved towards the center axis R of the lid 100 to apply an outer pressure PA onto an outer side 110 of the side part 120 of the lid 100 to form an undercut 140 into the side part 120 to establish the endformed lid 100 ' ; and outputing 240 the endformed lid 100 ' with the undercut 140 in the side part 120, eventually
- the method comprises the step of preforming 250 the material M in a preforming station 50 to provide the preformed lid 100 togther with the steps of transferring 260 the preformed lid 100 from the preforming station 50 to the forming station 10 with a transfer station 60.
- the material M might be provided 280 to the preforming station 50 as a sheet material for the preforming step 250.
- the step of preforming 250 the material M may apply a paper pulp process.
- the step of preforming 250 the material M might be executed in the forming station 10 prior to endforming the preformed lid 100, where the forming station 10 performs the function of the preforming station 50.
- the material M is provided as directly, e.g. as sheet material 280, to the forming station 10 for performing 220 a first movement in axial direction with the upper tool.
- first tool e.g. upper tool
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Making Paper Articles (AREA)
Abstract
La présente invention concerne un composant de fabrication (1) employé comme premier outil dans au moins un poste de formage (10) pour former un couvercle préformé (100) fabriqué à partir d'un matériau (M) pour former une contre-dépouille (140) comprenant des fibres naturelles, le couvercle préformé (100) comprenant une partie supérieure (130) et une partie latérale (110) qui fait le tour de la partie supérieure (130), le composant de fabrication (1) est conçu pour entrer en contact avec un côté extérieur (110) du couvercle préformé (100) pour former le couvercle préformé (100) en exerçant un premier mouvement (FM) dans la direction axiale le long d'un axe central (R) du composant de fabrication (1) et un second mouvement ultérieur (SM) dans une seconde direction vers la partie latérale (120) du couvercle préformé (100), de multiples éléments de formation de côté (2) du composant de fabrication (1) étant agencés pour exercer le second mouvement (SM) appliquant une pression externe (PA) sur un côté externe (110) de la partie latérale (120) pour former une contre-dépouille (140) dans la partie latérale (120). L'invention concerne en outre un poste de formage (10) avec un tel composant de fabrication (1), un dispositif de formation (80) comprenant un tel poste de formage (10), un couvercle d'extrémité (100´) fabriqué avec un tel poste de formage (10) comprenant une contre-dépouille (140) et un procédé (200) pour fabriquer un tel couvercle (100´) avec une contre-dépouille (140).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020109686.0A DE102020109686A1 (de) | 2020-04-07 | 2020-04-07 | Deckel mit Unterschneidung auf der Grundlage von Naturfasern |
PCT/EP2021/058887 WO2021204771A1 (fr) | 2020-04-07 | 2021-04-06 | Couvercle à base de fibres naturelles avec contre-dépouille |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4133128A1 true EP4133128A1 (fr) | 2023-02-15 |
Family
ID=75441892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21717805.2A Pending EP4133128A1 (fr) | 2020-04-07 | 2021-04-06 | Couvercle à base de fibres naturelles avec contre-dépouille |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230151555A1 (fr) |
EP (1) | EP4133128A1 (fr) |
CN (1) | CN115298390A (fr) |
DE (1) | DE102020109686A1 (fr) |
WO (1) | WO2021204771A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1183734B (it) | 1984-02-10 | 1987-10-22 | Omv Spa Off Mecc Veronese | Stampo femmina per recipienti impilabili |
DE4008862C1 (fr) | 1990-03-20 | 1991-04-11 | Friedrich 2807 Achim De Priehs | |
JP3022055B2 (ja) | 1993-04-30 | 2000-03-15 | 豊田合成株式会社 | 樹脂シート材の成形方法 |
JP5340477B2 (ja) | 2009-07-23 | 2013-11-13 | 李庭南 | 植物繊維製プレス成形コップ蓋の勘合溝製造方法 |
NZ723957A (en) * | 2014-04-15 | 2017-04-28 | Dandong Mingcheng Env Prot Products Co Ltd | Manufacturing method for outer covering edge of molded cup lid and product |
-
2020
- 2020-04-07 DE DE102020109686.0A patent/DE102020109686A1/de not_active Withdrawn
-
2021
- 2021-04-06 US US17/995,555 patent/US20230151555A1/en active Pending
- 2021-04-06 WO PCT/EP2021/058887 patent/WO2021204771A1/fr unknown
- 2021-04-06 CN CN202180021185.2A patent/CN115298390A/zh active Pending
- 2021-04-06 EP EP21717805.2A patent/EP4133128A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102020109686A1 (de) | 2021-10-07 |
WO2021204771A1 (fr) | 2021-10-14 |
US20230151555A1 (en) | 2023-05-18 |
CN115298390A (zh) | 2022-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2842319C (fr) | Bouteille biodegradable pour liquides | |
EP3285503B1 (fr) | Procédé de préparation d'un diaphragme en gel de silice | |
US20230151555A1 (en) | Natural fiber based lid with undercut | |
CA2123365A1 (fr) | Elements resistants a la pression pour le renforcement de contenants destines a recevoir des matieres micro-ondables | |
US20220288888A1 (en) | A moulded pulp fibre product, and method of forming same | |
Saxena et al. | Soft tooling process chain for the manufacturing of micro-functional features on molds used for molding of paper bottles | |
US11254473B2 (en) | Cups and containers with a living hinge and sleeves | |
WO2021156222A1 (fr) | Système de moule de mise en forme et procédé de mise en forme d'un produit cellulosique dans un système de moule de mise en forme | |
CN101905625B (zh) | 美耐皿容器的多面贴花制程 | |
Singh et al. | Promoting sustainable packaging applications in the circular economy by exploring and advancing molded pulp materials for food products: a review | |
CN103314156A (zh) | 在模制纤维产品上应用薄膜的方法以及通过所述方法制造的产品 | |
US20110104971A1 (en) | Fibrous article with fabric-like surface and process of manufacturing same | |
Petrov et al. | Research into the effect of the 3D-printing mode on changing the properties of PETG transparent plastic | |
US20110104497A1 (en) | Reinforced fiber blank and process of manufacturing same | |
JPWO2018135562A1 (ja) | 積層体及びテープワインディングパイプ | |
JPS61283525A (ja) | 複数層の熱可塑性材料からなるプラスチツク製品の製造方法 | |
GB2283966A (en) | Pulp mouldings | |
CN106251091A (zh) | 一种erp***的物料自定义方法及装置 | |
CN208503455U (zh) | 树脂环 | |
WO2018096681A1 (fr) | Contenant d'emballage d'aliment et procédé de fabrication de celui-ci | |
EP4095311B1 (fr) | Procédé de moulage a deux couches et dispositif | |
JPH04261837A (ja) | 食品容器及びその製造方法 | |
Tolvanen et al. | Selection of force creation method for press forming machinery | |
EP0657581A1 (fr) | Objets moulés en pâte à papier | |
EP3572200B1 (fr) | Procédé de renforcement d'un réservoir moulé par rotation et réservoir moulé par rotation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
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: 20221010 |
|
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 |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230714 |