EP3587665A1 - Procédé et dispositif de fabrication d'un objet tridimensionnel à base de cellulose - Google Patents

Procédé et dispositif de fabrication d'un objet tridimensionnel à base de cellulose Download PDF

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Publication number
EP3587665A1
EP3587665A1 EP18179933.9A EP18179933A EP3587665A1 EP 3587665 A1 EP3587665 A1 EP 3587665A1 EP 18179933 A EP18179933 A EP 18179933A EP 3587665 A1 EP3587665 A1 EP 3587665A1
Authority
EP
European Patent Office
Prior art keywords
flat material
printed
blank
shaping surface
product
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.)
Granted
Application number
EP18179933.9A
Other languages
German (de)
English (en)
Other versions
EP3587665B1 (fr
Inventor
Ralf Mack
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.)
GPI Frankfurt and Augsburg GmbH
Original Assignee
A&R Carton GmbH
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 A&R Carton GmbH filed Critical A&R Carton GmbH
Priority to EP18179933.9A priority Critical patent/EP3587665B1/fr
Priority to RU2019119079A priority patent/RU2778308C2/ru
Publication of EP3587665A1 publication Critical patent/EP3587665A1/fr
Application granted granted Critical
Publication of EP3587665B1 publication Critical patent/EP3587665B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21J1/00—Fibreboard
    • D21J1/08—Impregnated or coated fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/005—Making rigid or semi-rigid containers, e.g. boxes or cartons involving a particular layout of the machinery or relative arrangement of its subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/16—Special fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/20—Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/002—Construction of rigid or semi-rigid containers having contracted or rolled necks, having shoulders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/10—Construction of rigid or semi-rigid containers provided with covers, e.g. lids
    • B31B2120/102—Construction of rigid or semi-rigid containers provided with covers, e.g. lids with a hinged cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/50—Construction of rigid or semi-rigid containers covered or externally reinforced

Definitions

  • the invention relates to a method and a device for producing a three-dimensional product based on cellulose.
  • the products should have the necessary stability and other properties that are required by the conventional design e.g. made of plastic, cardboard, glass or aluminum.
  • a material which consists essentially of cellulose fibers is preferably used for this.
  • the material is preferably obtained from plants, e.g. made of wood, sugar cane, bamboo, corn, cotton or flax.
  • the material can contain other substances, for example substances for reinforcing or coloring the material.
  • the WO 2017/160217 A1 describes a method for producing a three-dimensional cellulose product using a molding tool with a shaping surface that defines the product shape.
  • a blank made of cellulose which preferably contains less than 15% by weight of water, is introduced into the mold, heated to a temperature in the range from 100 ° C. to 200 ° C. and by means of the mold with a shaping tool Pressure in the range of 1 MPa to 100 MPa pressed against the shaping surface.
  • the blank preferably contains at least 90% by weight of cellulose (wood pulp or chemical wood pulp) or wood pulp (mechanical wood pulp).
  • the blank can contain other substances that reinforce it, for example, without preventing recyclability.
  • the blank can be separated from a flat material wound into a roll.
  • the blank is pressed onto the shaping surface by means of a flexible membrane of the shaping tool, to which a pressure is applied by means of a fluid.
  • the membrane can be firmly connected to the three-dimensional product and can be replaced by a new membrane for pressing another product.
  • the WO 2017/160218 A1 describes a method and an apparatus for producing a cellulose product, in which the cellulose blank is first shaped in a dry forming unit in the form of a continuous web and the web is guided to a molding tool in which the cellulose product is formed from sections of the web.
  • PulPac TM Pulpac AB, Gothenburg, Sweden.
  • the object of the invention is to provide a method for producing a three-dimensional product based on cellulose create that facilitates the graphic design of the three-dimensional product and enables higher production speeds. Furthermore, an apparatus for performing the method is to be created.
  • the graphic design of the three-dimensional product is achieved in that, before the three-dimensional product is shaped, the printed flat material is positioned in front of the shaping surface of the shaping tool in addition to the blank.
  • the printed flat material with its printing is aligned in register with the shaping surface.
  • the printing or the different parts of the printing are placed exactly on the intended locations of the three-dimensional product.
  • a logo, a product description, a manufacturer's specification, a weight specification, a copyright notice or a barcode can be arranged exactly on the intended place on the product become.
  • the method locally different strains of the printed flat material during the shaping of the three-dimensional product can be compensated for by appropriate printing of the flat material.
  • the technical material can be printed more tightly in the areas that are stretched more when the product is formed and correspondingly less closely printed in the areas that are stretched less or not at all.
  • the method enables printing of even complex three-dimensional shapes that is essentially area-wide.
  • the printed flat material is tissue paper.
  • the tissue paper is a soft and light, gauze-like paper made of cellulose or ground wood. In particular, this can be a fine crepe paper.
  • Tissue paper is easy to print and can be easily bonded to the blank when shaped under the influence of temperature and pressure. Tissue paper can also form a support stabilizing the blank. The tissue paper can only have a low grammage.
  • the blank contains cellulose fibers.
  • the blank consists essentially or exclusively of cellulose fibers.
  • the blank contains cellulose fibers obtained from plant material, for example from wood, cellulose fibers obtained from sugar cane (in particular from bagasse), bamboo, corn, cotton or flax.
  • the cellulose fibers obtained from wood are cellulose (wood pulp or chemical wood pulp) or wood pulp (mechanical wood pulp).
  • the cellulose fibers are chemical fibers (regenerated fibers, for example viscose fibers, modal fibers, lyocell fibers or cuprofibers). These man-made fibers can be made from regenerated or esterified cellulose.
  • the blank contains a mixture natural cellulose fibers and from regenerated fibers.
  • the blank comprises additional substances, for example one or more of the following substances: substances which increase strength (e.g. starch or other substances which act as adhesives), substances which reduce hygroscopicity, substances which increase hydrophobicity or dyes.
  • the blank contains less than 45% water, furthermore preferably less than 25% water, furthermore preferably less than 15% water.
  • the blank contains at least 90% by weight of cellulose fibers.
  • the three-dimensional product can be produced in particular by heating the blank and the printed flat material to a temperature of 100 ° C. to 200 ° C. and applying a pressure to these materials in the range from 1 MPa to 100 MPa.
  • the blank can be produced in particular by separating cellulose fibers from one another, applying the separated cellulose fibers to one side of an air-permeable base, applying a negative pressure to the other side of the air-permeable base and thereby the cellulose fibers on one side of the air-permeable base form a coherent layer.
  • the blank thus formed is also referred to as an "airlaid".
  • the air-permeable base can in particular be an air-permeable drum or an air-permeable conveyor belt. It is also possible to form the blank by applying the cellulose fibers to a tissue paper, the negative pressure being hereby applied to the other side of the tissue paper through an air-permeable base.
  • tissue paper is mechanically connected (for example by interlocking fibers with one another) to the layer of cellulose fibers.
  • a further layer of tissue paper can be applied to the top of the layer of cellulose fibers as a cover.
  • the additional layer of tissue paper can also be mechanically connected (for example by hooking) to the layer of cellulose fibers. For this the another layer of tissue paper is pressed onto the layer of cellulose fibers.
  • Additional substances for example starch or other substances to increase the strength of the layer of cellulose fibers, can be mixed in beforehand with the cellulose fibers or subsequently applied to the layer on cellulose fibers before it is covered with a further layer of tissue paper.
  • the blank is a further flat material.
  • the blank is wound up into a roll and processed from the roll into three-dimensional products.
  • the blank is continuously manufactured and processed into three-dimensional products, as in the WO 2017/160218 A1 described.
  • the blank is manufactured and processed in an inline process.
  • the blank formed as a further flat material has a layer of flat material on one flat outside or on both flat outside.
  • the flat material can be used as a carrier for cellulose fibers serve containing material that can be cotton-like.
  • the further flat material is a printable flat material.
  • the further flat material is tissue paper.
  • the printed flat material is additionally applied to an outside of the blank when the product is molded.
  • the blank can consist exclusively of a layer of cellulose fibers or additionally have a further flat material as a carrier on at least one flat outside.
  • a blank formed as a further flat material which is connected to a printable flat material on at least one outside, is printed on the printable flat material and when the blank is positioned in front of the shaping surface, the printing is aligned in register with the shaping surface.
  • a single flat material has to be positioned.
  • the printed flat material is positioned on the side of the blank facing away from the molding tool. According to another embodiment, it is positioned on the side of the blank facing the molding tool. According to a further embodiment, the printed flat material with the printing is positioned on the side facing away from the blank. Alternatively, the printed flat material with the printing is positioned on the side facing the blank.
  • registration marks are printed on the flat material
  • the molding tool has at least one stationary registration mark and, by aligning at least one printed registration mark on at least one stationary registration mark, the printing is aligned in register with the shaping surface.
  • the flat material is printed in such a way that each print intended for a three-dimensional product comprises at least one printed registration mark.
  • the alignment of the printed registration mark on the stationary registration mark is checked by means of at least one optical sensor.
  • a single blank and separate parts of the printed flat material are positioned at the same time in front of the shaping surfaces of a plurality of molds, the separated parts of the printed flat material each being aligned in register with the shaping surface of the mold in front of which they are positioned.
  • the application speed is increased by the simultaneous use of several molding tools for the production of three-dimensional products.
  • the precise registration is ensured by the fact that parts of the printed flat material that are separated from one another are each aligned with their printing on the respective shaping surface.
  • a blank designed as a further flat material which is firmly connected to a printable flat material on at least one outside, is printed on the printable flat material along a plurality of parallel rows, separated between the printed rows, and the separated parts of the further flat material are each separated positioned in front of various molds and with their prints aligned in register with the shaping surfaces of the molds.
  • At least one molding tool is used for molding three-dimensional products with several connected product parts and is placed in front of at least one shaping surface of the molding tool for only one of the coherent product parts, a separate printed flat material intended only for the connection with this product part is positioned and its printing is aligned in register with the shaping surface of the molding tool for the relevant product part.
  • a registration-accurate alignment of the printing on at least one product part of a complex product from several connected product parts is achieved.
  • a deformation of the printed flat material during the formation of the product part can be avoided, which prevents the printing from being placed precisely on the surfaces of the product provided for this purpose.
  • both product parts are each provided with a print using two separate printed flat materials.
  • parts of the printed flat material which are separate from one another are positioned separately from the blank in front of the shaping surfaces of the molding tool for different product parts or the blank formed as a further flat material is connected to the printed flat material and parts of the blank which are separated from one another are separated in front of the shaping surfaces of the mold positioned for various product parts.
  • the molding tool for the production of products with several connected product parts is a molding tool for producing a product comprising a lower part and an upper part and at least one lower part and upper part connecting the hinge band.
  • the product is, for example, a container known as a clam shell for holding burgers or other products for quick consumption.
  • printed flat materials which are separate from one another are positioned in front of the shaping surface of the molding tool for the lower part and the upper part, and their printing is aligned in register with the shaping surfaces for the respective product part.
  • the printed flat material is positioned in front of the shaping surface for a product part of the molding tool and aligned with the printing in register with the shaping surface, and a flat material forming a barrier layer is positioned in front of the shaping surface for a further product part and are formed during the shaping of the three-dimensional Product, the printed flat material is firmly connected to one product part and the barrier layer to the other product part.
  • the barrier layer can, for example, seal or isolate a lower part of a hood half shell inside or outside in a liquid-tight manner and the printed flat material can be used for the graphic design of the upper part.
  • the printed flat material is also a barrier layer.
  • the printable flat material can e.g. can also be used for graphic design and for liquid-tight or insulating design of the three-dimensional product.
  • pressure is applied and heat is applied during the shaping of the three-dimensional product by means of a heated stamp.
  • the three-dimensional product is produced using a molding tool with a membrane, as in FIG WO 2017/160217 A1 described.
  • the membrane is at the same time the printed flat material and, after being connected to the blank, the molding of another product is replaced by a new membrane.
  • the heat is supplied via the parts of the product which form the shaping surface of the molding tool. According to a further embodiment, this is a metal mold part.
  • edge material which protrudes beyond is cut off during the shaping of the three-dimensional product or thereafter. This can be done, for example, by means of a molding tool, in which a stamp for applying the pressure is also designed as a punch.
  • the device according to the invention for producing a three-dimensional product based on cellulose is solved according to the method according to the invention, in which a molding tool has at least one stationary register mark for aligning at least one printed register mark of a print on a printed flat material.
  • the device comprises at least one optical sensor for detecting at least one printed register mark, an electrical control device connected to the optical sensor and a motor-driven feed device for the printed flat material to the mold, the electronic control device being designed, the position of a printed register mark to detect and to control the feed device as a function of the detected position so that the printed register mark is aligned with the stationary register mark.
  • the optical sensor is arranged in a stationary manner with respect to the molding tool, so that its position in relation to the stationary register mark is known and only the printed register mark has to be detected in order to read the printed one Align the registration mark with the stationary register mark.
  • the optical sensor detects both the position of the printed register mark and the position of the stationary register mark.
  • the electronic control device is connected to a device for exerting pressure on the blank and the printed flat material, and the electronic control device is designed to control the device for exerting pressure so that it presses the blank and the printed flat material against the shaping element Surface of the mold presses when the printed register mark is aligned with the stationary register mark.
  • the device comprises a device for providing the flat material, in particular a roller device for providing the flat material in the form of a roll, from which the motor-driven feed device removes the flat material in order to feed it to the molding tool.
  • a device for printing the flat material is arranged between the device for providing the flat material and the feed device, which device is designed to print on the flat material when it is moved from the device for providing the feed device.
  • the flat material is provided on the device for provision in the already printed state.
  • the device comprises a further device for providing the blank and a further motor-operated feed device for feeding the blank to the molding tool.
  • the device for providing the blank based on cellulose is a device for providing another flat material based on cellulose.
  • the further device for providing is a roller device for providing the further Flat material in the form of a roll.
  • the further device for providing is a device for the continuous production of a further flat material based on cellulose.
  • the device for the continuous production of the further flat material is a device for producing an airlaid.
  • the device comprises several molding tools.
  • a molding tool comprises a plurality of shaping surfaces, which are intended to shape the various product parts of a product consisting of coherent product parts.
  • a device for dividing the flat material into different webs is provided, whereby the feed device is designed such that it positions the different webs in front of the shaping surfaces of different shaping tools and / or in front of different shaping surfaces for shaping different product parts of a coherent product of a shaping tool.
  • a hood half-shell 1 comprises a shell-shaped lower part 2 and a shell-shaped upper part 3, which are connected to one another in one piece via an articulated band 4.
  • the lower part 2 has a locking tongue 5 protruding outward from the hinge 4 and the upper part 3 has a corresponding slot 6 on the edge for receiving the locking tongue 5.
  • hood half-shell 1 is closed, the upper part 3 being held in the closed position by engaging the locking tongue 5 in the slot 6.
  • the underside of the lower part 2 is printed with a copyright notice 7 and the upper side of the upper part 3 shows an image 8 of the product and a logo 9.
  • the hood half-shell 1 is made in one piece from a cellulose-containing blank 10 and tissue paper or another printed flat material 11.
  • Fig. 3 For the production of a plurality of hood half-shells 1, the cellulose-containing blank 10 in the form of a further flat material 12 is removed from a roll 13.
  • the further flat material 12 is fed to an arrangement of three molding tools 14.
  • the three shaping tools 14 each have a shaping surface 15 for the lower part 2, a shaping surface 16 for the upper part 3 and a shaping surface 17 for the hinge 4.
  • the shaping surfaces 15, 16 for the lower part 2 and the upper part 3 are each formed by a first cavity 18 and a second cavity 19.
  • the shaping surface 17 for the hinge 4 is formed by a recess 20 connecting the cavities 18, 19 to one another at the edge.
  • the printed flat material 11.1, 11.2 is fed in the form of a plurality of webs separated from one another. These are removed from at least one roll and are already printed.
  • Each molding tool 14 is supplied with two different printed flat materials 11.1, 11.2, namely a printed flat material 11.1 for the lower part 2 and a further printed flat material 11.2 for the upper part 3.
  • the printed flat material 11.1 for the lower part is at intervals with the copyright notice 7 printed.
  • the material for the upper part is printed at intervals with the picture 8 and the logo 9 next to it.
  • Fig. 4 the flat material 11 and the further flat material 12 are shown in an enlarged vertical section. Accordingly, in the case of the flat material 11, the printing 7, 8, 9 is assigned on the underside, which faces the molding tool 14.
  • the further flat material 12 consists of a central layer of cellulose 21 and tissue papers 22, 23 on the top and the bottom.
  • the tissue papers 22, 23 are connected to the layer of cellulose 21 in the manufacture of the further flat material 12 as an airlaid. They are carriers for the cotton-like pulp 21.
  • each molding tool 14 has stationary register marks 24 and the printed flat material 11 has printed registration marks 25. These are brought together to align the printed flat material 11 with its printing 7, 8, 9 in register with the shaping surfaces 15, 16.
  • the two webs of printed flat material 11.1, 11.2 and the further flat material 12 are e.g. by introducing punches from above into the cavities 18, 19 and against the shaping surfaces 15, 16 and the depression 20.
  • the stamp and / or the shaping surfaces 18, 19 and the depression 20 are heated and the layers bond to one another through the action of pressure and temperature.
  • the punches are preferably additionally formed as punches and separate protruding edge material from the hood half-shells 1.
  • the hood half-shells 1 with the stamps can then be removed from the cavities 18, 19 and the depression 20 and stripped from them.
  • the cavities 18, 19 for the formation of the lower part 2 and the upper part 3 are arranged perpendicular to the transport direction of the flat materials 11, 12 side by side. This is advantageous for feeding separate printed flat materials 11.1, 11.2 to lower part 2 and upper part 3.
  • Fig. 6 it is in principle also possible to arrange the cavities 18, 19 one behind the other for the formation of the lower part 2 and the upper part 3 in the transport direction of the flat materials 11, 12.
  • the lower part 2 or the upper part 3 is provided with a printed flat material 11 or will be printed flat material 11 at the same time aligned with the shaping surfaces 15, 16 for the lower part 2 and the upper part 3.

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EP18179933.9A 2018-06-26 2018-06-26 Procédé et dispositif de fabrication d'un objet tridimensionnel à base de cellulose Active EP3587665B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18179933.9A EP3587665B1 (fr) 2018-06-26 2018-06-26 Procédé et dispositif de fabrication d'un objet tridimensionnel à base de cellulose
RU2019119079A RU2778308C2 (ru) 2018-06-26 2019-06-19 Способ и устройство для изготовления трехмерного изделия на основе целлюлозы

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18179933.9A EP3587665B1 (fr) 2018-06-26 2018-06-26 Procédé et dispositif de fabrication d'un objet tridimensionnel à base de cellulose

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EP3587665A1 true EP3587665A1 (fr) 2020-01-01
EP3587665B1 EP3587665B1 (fr) 2021-01-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023107364A1 (de) 2023-03-23 2024-09-26 IP Verpackungen GmbH Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Zelluloseproduktes und dreidimensionales Zelluloseprodukt
SE2350699A1 (en) * 2023-06-08 2024-12-09 Pulpac AB A method for producing a cellulose product with an opening and a cellulose product with an opening
DE102024108936A1 (de) 2024-03-28 2025-10-02 Optima consumer GmbH Vorrichtung und Verfahren zur Herstellung eines Formkörpers
WO2025210267A1 (fr) * 2024-04-04 2025-10-09 Bluethink S.P.A. Procédé de fabrication d'objets tridimensionnels (3d) par pressage et/ou thermoformage d'une bande sensiblement plane comprenant un matériau à base de cellulose, et objet 3d ainsi obtenu

Citations (4)

* Cited by examiner, † Cited by third party
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US3058869A (en) * 1956-12-20 1962-10-16 Rockline Realty Corp Pre-printed corrugated board fabrication and cut-off control method and apparatus
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DE102023107364A1 (de) 2023-03-23 2024-09-26 IP Verpackungen GmbH Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Zelluloseproduktes und dreidimensionales Zelluloseprodukt
SE2350699A1 (en) * 2023-06-08 2024-12-09 Pulpac AB A method for producing a cellulose product with an opening and a cellulose product with an opening
WO2024251437A1 (fr) * 2023-06-08 2024-12-12 Pulpac AB Procédé de production d'un produit cellulosique comprenant une ouverture et produit cellulosique comprenant une ouverture
DE102024108936A1 (de) 2024-03-28 2025-10-02 Optima consumer GmbH Vorrichtung und Verfahren zur Herstellung eines Formkörpers
WO2025210267A1 (fr) * 2024-04-04 2025-10-09 Bluethink S.P.A. Procédé de fabrication d'objets tridimensionnels (3d) par pressage et/ou thermoformage d'une bande sensiblement plane comprenant un matériau à base de cellulose, et objet 3d ainsi obtenu

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