EP4341169A1 - Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication - Google Patents

Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication

Info

Publication number
EP4341169A1
EP4341169A1 EP22744537.6A EP22744537A EP4341169A1 EP 4341169 A1 EP4341169 A1 EP 4341169A1 EP 22744537 A EP22744537 A EP 22744537A EP 4341169 A1 EP4341169 A1 EP 4341169A1
Authority
EP
European Patent Office
Prior art keywords
packaging
film
solid fuel
fact
intermediate configuration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22744537.6A
Other languages
German (de)
English (en)
Inventor
Antonio Pelloso
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.)
De Agostini Sabrina
Original Assignee
De Agostini Sabrina
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 De Agostini Sabrina filed Critical De Agostini Sabrina
Publication of EP4341169A1 publication Critical patent/EP4341169A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • This patent application relates to a flexible, biodegradable package for containing and storing solid fuel, particularly but not exclusively solid fuel in the form of pellets.
  • a method for making said packaging is also the subject matter of this patent application.
  • the invention which is the subject matter of the present patent application is applied in the manufacture of flexible packages suitable for containing solid fuel material, preferably but not exclusively in granular form or in the form of pellets.
  • the invention which is the subject matter of the present patent application finds application in the field of making flexible packages capable of being sealed once the contents have been inserted in granular form or in the form of pellets.
  • flexible packaging for solid fuels also known as 'sack containers'
  • plastic packages which, once emptied, are to be disposed of as reusable plastic material after appropriate treatment.
  • the plastic material from which flexible containers suitable for the contents in granular form or pellets are made is predominantly PE Polyethylene with thicknesses varying indicatively between 50 microns and 100 microns and obtained by means of well- known packaging techniques.
  • these packages must guarantee, in addition to flexibility, also sufficient strength to be able to fulfil the task of containers for products with a specific weight or sufficient strength to be filled, without breakage, for a specific volume.
  • bag-type packages are manufactured by means of appropriate devices and sealed once filling machines have inserted the contents, so that they can then be transported and delivered to the end user.
  • the main disadvantage of the known solutions lies in the fact that the material from which the sack-type confections suitable for containing material in the form of granules or pellets are made, once emptied, are destined to be disposed of as plastic material and thus only reusable after eventual treatment or only recyclable after appropriate processing.
  • the bag has a substantially quadrangular shape with an opening at the top for access from the outside to the contents.
  • document CN112832272 describes a biodegradable pack made of mineral fibre fabric suitably stitched to make a regular flat parallelepiped.
  • the pack is filled with a material, e.g. sand, cement or stones, and can be unloaded and placed in the desired position depending on its use.
  • the filled pack can serve to protect or weigh down an object, e.g. under water.
  • the filled pack can be used to straighten, e.g. to lay pipes on an originally uneven surface.
  • Document CN204197560 describes a pack for transferring fuel in the form of biomass from one place to another, said pack being made of fabric.
  • the invention described in document CN204197560 therefore consists of a pack with an upper opening, exclusively for transferring material from one place to another, made of fabric and therefore not suitable for storing the material until it is used.
  • EP3757295 cannot therefore be used for the production of pellet bags or alike as it is inherently designed for continuous exchange between contents and the environment outside the pack.
  • this type of packaging is equipped with a pair of handles and has an upper opening and is therefore not suitable for the purpose of the present patent application.
  • bag-type packs made of biodegradable material that are closed at the base and have an upper opening without handles.
  • This type of biodegradable packaging is known to be intended for the delivery of wet waste and, once filled, is closed manually by means of string-type ties or the like. Due to the characteristic intended use, the breaking strength of this type of packaging is conditioned by the relative weight of the contents - the wet fraction to be delivered - and is therefore not feasible when filling with solid fuel is required.
  • the invention described in document W09822282 relates to the realisation of a packaging of the gusseted bag type made of multilayer film realised in plastic material, said packaging has being realised by heat sealing the multilayer film.
  • the gusseted bag has strength characteristics derived from the plastic material in which it is made and commonly known in the plastic packaging industry.
  • document W09822282 describes a type of packaging in which there is a single bottom seal to create a "gusset pack" type configuration that is not suitable for containing material intended for storage prior to its use.
  • Document EP1153743 "BIODEGRADABLE BAG” describes a bag made of biodegradable material that can be heat-sealed at low temperature, that does not develop ripple effects from the heat of the heat sealing process, and that presents transparency and degradability in the natural environment.
  • the invention described in Document EP1153743 relates to the manufacture of a biodegradable bag comprising a laminate whose main component is a polymer of the polylactic acid family and a film whose main component is an aliphatic polyester having a crystallising heat of fusion D Hm (J/g) of 45£ D Hm£ 55.
  • thermowelding is conventionally a welding method in which flaps of material are overlapped and joined together by heat and pressure, conventionally by means of heating rods or the like.
  • the construction of a container made of polylactic acid has the disadvantage that this material, transformed into a film, is not particularly resistant to impact. If the polylactic acid is mixed with other polyesters, this improves the impact resistance, but the resulting material has further disadvantages in the form of elongation to the point of rupture when exposed to temperatures moderately above room temperature, as well as reduced strength at the heat-sealing points.
  • the solution proposed and described in document EP1153743 is therefore that of a packaging material that can be heat-sealed without the material itself changing its structure during the heat sealing process, and at the same time be sufficiently resistant even at temperatures above room temperature.
  • the solution described in document EP1153743 is therefore to couple a polylactic acid film to an aliphatic polyester film, obtaining a laminate having a polylactic acid surface and the opposite aliphatic polyester surface, and to perform the thermowelding exclusively on the aliphatic polyester surfaces of two overlapping laminates so that the polylactic acid surfaces of said overlapping laminates are external and not involved in the thermowelding process.
  • the film in order to obtain the solution described in document EP1153743, the film must have a biaxial orientation, i.e. it must exhibit stretchability characteristics in both longitudinal and lateral directions.
  • Document EP1153743 sets forth a series of conventionally known methods for obtaining said condition as well as a series of conventionally known methods for obtaining the laminate by bonding between the polyester film and the polylactic acid film.
  • the product obtained consists of a pouch made of a biaxially oriented laminate consisting of an inner film of aliphatic polyester and an outer film of polylactic acid, said pouch being welded at the bottom and sides and having a hinge at the top.
  • the invention described in document EP1153743 therefore relates to the realisation of a packaging for presents has an inner layer in the form of a film the main component of which is an aliphatic polyester so that in the sealing step by melting the aliphatic polyester film, the melting temperature is lower than the melting point of the polymer of the polylactic acid family in the outer layer.
  • the solution described in EP1153743 involves a process of making the laminate and a process of making two side heat seals and a bottom heat seal which is particularly complex and costly in a context of making packaging for material intended for storage.
  • the task of the invention which is the subject-matter of the present patent application is therefore to realise a bag-type packaging suitable for the storage and containment of solid fuel, particularly but not exclusively pellets, which has performances of robustness and insulation from the external environment quite similar to the known packaging, and which is made of a biodegradable material and realised according to a specific process.
  • a further task of the invention which is the subject-matter of the present patent application is to make a biodegradable bag-type packaging suitable for the storage and containment of solid fuel, particularly but not exclusively made of pellets and sealable in the absence of components that compromise its biodegradability.
  • a further task of the invention which is the subject of this patent application is to make a biodegradable bag type packaging suitable for storing and containing solid fuel, particularly but not exclusively in the form of pellets, which in the case of overlapping of more than one bag containing the usual fuel maintains the sealed condition of the contents, preventing their leakage.
  • Fig 1 Example view of the film from which the patent-applied pack is made
  • Fig 2 Illustrative view of a first stage of making the patent application package
  • Fig 3 Example view of the intermediate obtained from the first stage of realisation of the patent application package
  • Fig 4 Example front view of the intermediate obtained from the second stage of realisation of the packaging covered by the present patent application;
  • Fig 5 Example front view of the intermediate obtained from the second stage of making the packaging subject of the present patent application.
  • Fig 6 Example view of the intermediate following the filling stage
  • Fig 7 Example view of the first front surface of the flexible solid fuel packaging according to the invention of the present patent application
  • Fig 7.a Example view of the second front surface of the flexible packaging for solid fuel according to the invention of the present patent application;
  • Fig 8 Exemplary embodiment of the stages for making the package according to the invention of the present patent application. Detailed description of the invention
  • the flexible packaging for solid fuel, particularly but not exclusively pellets, of the sack type is indicated by numeral 9.
  • the flexible packaging for solid fuel, particularly but not exclusively pellets (9, Fig 7, Fig 7.a) is made of biodegradable material having specific characteristics in terms of robustness and insulation comparable to known containers, overcoming the disadvantages of the state of the art with regard to the disposal of the packaging once the contents have been emptied.
  • the package (9) has a first surface (9.1, Fig 7) and a second surface (9.2, Fig 7.a), a lower closed surface (6, Fig 7, Fig 7.a) and an upper closed surface (7, Fig 7, Fig 7.a).
  • the first surface (9.1, Fig 7) of the package (9) has an overlapping area (4, Fig 3, Fig 6, Fig 7) of the right (2.1 Fig 1, Fig 2, Fig 3) and left (2.2 Fig 1, Fig 2, Fig 3) side ends of a film (1) made of biodegradable material.
  • the lower closed surface (6, Fig 2, Fig 4, Fig 6, Fig 7, Fig 7.a) is made by overlapping the lower flaps (3.1,3.2 Fig 3) of the film (1) made of biodegradable material
  • the upper closed surface (7, Fig 7, Fig 7.a) is made by overlapping the upper flaps (4.1,4.2, Fig 3) of the film (1) made of biodegradable material.
  • the association of the right (2.1) and left (2.2) side ends of the film (1) made of biodegradable material to realise the overlapping area (4) present on the first surface (9.1) of the package (9), the closure at the base by association of the lower flaps (3.1, 3.2) to realise the lower closed surface (6) of the package (9) and the closure by association of the upper flaps (4.1, 4.2) to realise the upper closed surface (7) is carried out by thermoforming under heat at a temperature £ 130°C and in the absence of glues or resins or adhesives.
  • the film (1, Fig. 1) made of biodegradable material with which the package (9) described is made is obtained by extrusion of biodegradable thermoplastic compount which in turn is obtained by mixing biodegradable polyesters.
  • the film (1) of biodegradable material obtained has a thickness of between 100 microns and 120 microns.
  • the technical characteristics of the biodegradable film from which the package (9) covered by the present patent application is made are shown in Table 1.
  • First step Making the film from biodegradable material.
  • the biodegradable polystyrene mixture (20, Fig 8) is suitably processed and by extrusion a flat biodegradable film (1, Fig 1, Fig 8) is obtained, which is subsequently wound onto a reel and subsequently processed by a common device for making sack-type confections.
  • Second step realisation of the intermediate pack configuration.
  • a portion of film (1), previously cut, is reversibly wound to a cylindrical body (5, Fig 2, Fig 8) so that the right side end (2.2, Fig 2, Fig 3) and the left side end (2.1, Fig 2, Fig 3) can overlap and can be reciprocally associated to make an intermediate pack configuration (1.1, Fig 3) having a substantially cylindrical configuration having side surfaces (9.1, 9.2) and open top and bottom ends.
  • the intermediate pack configuration is then filled with a predetermined amount of solid fuel.
  • the flexible package (9) for solid fuel obtained according to the process described above is therefore constituted by an intermediate configuration (1.1) constituted, in turn, by a film (1) with flat development in biodegradable material whose lateral ends (2.1,2.2) are reciprocally and irreversibly associated in a longitudinal sense to create an association area (4), said association area (4) being realised only on a front surface (Fig. 3,4) of said intermediate (1. 1) while on the opposite surface (Fig 5) the intermediate (1.1) presents a seamless surface exclusively formed by the film (1) and whose lower ends (3.1,3.2) and upper ends (4.1,4.2) are associated in a transverse direction to create two distinct association areas (6,7) parallel to and transverse to the association area (4).
  • the flexible packaging (9) for solid fuel thus obtained is therefore substantially made of biodegradable material, presenting performance characteristics, in terms of robustness, insulation from the external environment and resistance to breakage, comparable to a flexible packaging made of plastic material, being however manageable as biodegradable waste once the packaging function has been fulfilled.
  • the surface of the pack realised as described it is possible to realise a microperforation in order to allow the escape of any moisture present in the content.
  • the creation of microperforations on the entire surface of the pack thus realised also allows a friction effect in the case of a series of overlapping packs, such as to counteract a reciprocal sliding effect of the packs placed one on top of the other.
  • the pack realised as described above can also be characterised by prints reproduced on the lateral surfaces, these prints being made with biodegradable inks in order to maintain the uniqueness of the product thus realised.

Abstract

Emballage souple et biodégradable permettant de contenir et de stocker un combustible solide, en particulier mais non exclusivement un combustible solide sous la forme de pastilles. L'objet de la présente demande d'invention porte également sur un procédé de fabrication dudit emballage.
EP22744537.6A 2021-06-28 2022-06-20 Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication Pending EP4341169A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000016835A IT202100016835A1 (it) 2021-06-28 2021-06-28 Confezione atta al contenimento e alla conservazione di combustibile solido e relativo processo di realizzazione
PCT/IT2022/050174 WO2023275905A1 (fr) 2021-06-28 2022-06-20 Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP4341169A1 true EP4341169A1 (fr) 2024-03-27

Family

ID=77802075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22744537.6A Pending EP4341169A1 (fr) 2021-06-28 2022-06-20 Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP4341169A1 (fr)
IT (1) IT202100016835A1 (fr)
WO (1) WO2023275905A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6333061B1 (en) * 1996-11-22 2001-12-25 Cryovac, Inc. Packaging article
JP3236842B2 (ja) * 1999-10-27 2001-12-10 三菱樹脂株式会社 生分解性袋
CN204197560U (zh) 2014-10-24 2015-03-11 安吉洁源生物质燃料制品厂 生物质燃料转运袋
PL3109179T3 (pl) 2015-06-26 2020-01-31 Trioplast Nyborg A/S Zgrzewany worek, zwój, zastosowanie i sposób wytwarzania
ES2893465T3 (es) 2019-06-26 2022-02-09 Arnold Jaeger Holding Gmbh Contenedor y uso del mismo
CN112832272A (zh) 2021-02-22 2021-05-25 中交上海航道勘察设计研究院有限公司 一种可降解生态袋

Also Published As

Publication number Publication date
WO2023275905A1 (fr) 2023-01-05
IT202100016835A1 (it) 2022-12-28

Similar Documents

Publication Publication Date Title
EP1794059B1 (fr) Procede d'emballage de materiaux cimenteux
AU2007219353B2 (en) Film packaging bag
FI79275C (fi) Transportsaeck.
CA2420172C (fr) Contenant souple presentant des parois plates
US8167487B2 (en) Secure access easy opening tamper evident feature for sealable bags
US8597168B2 (en) Method of making bag with handle on side gusset
JP2007505012A (ja) 多数の取っ手付きバッグ
US20080085065A1 (en) Package with folded handle and method for making same
TWI294395B (en) Gusseted bags
US20120163739A1 (en) Package having a resealable pour spout
CZ286607B6 (cs) Ohebný obalový materiál
EP4341169A1 (fr) Emballage pour le confinement et le stockage de combustible solide et son procédé de fabrication
US20050069231A1 (en) Box bottom composite sack
US20210371179A1 (en) Resealable bag
JP3202739U (ja) 重量物用包装袋
AU2014200708A1 (en) Lined Bag
JP7318268B2 (ja) パウチ
CZ2003844A3 (en) A rollable re-closeable packaging and method for producing such a packaging
JP6804867B2 (ja) 包装用袋の製造方法
JP7347898B2 (ja) 農薬用の包装袋及び農薬の包装方法
IT202100003359U1 (it) Confezione atta al contenimento e alla conservazione di combustibile solido e relativo processo di realizzazione
US11220399B2 (en) Moisture prevention packaging system and methods
JPS592661Y2 (ja) 通気性包装袋
JP2001010644A (ja) 充填弁付き容器
JP3098327U (ja) 硝安油剤爆薬用包装袋

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: 20231220

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