WO2023248018A1 - Emballage en papier de dose unique scellé à une ouverture à rupture améliorée - Google Patents

Emballage en papier de dose unique scellé à une ouverture à rupture améliorée Download PDF

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Publication number
WO2023248018A1
WO2023248018A1 PCT/IB2023/054044 IB2023054044W WO2023248018A1 WO 2023248018 A1 WO2023248018 A1 WO 2023248018A1 IB 2023054044 W IB2023054044 W IB 2023054044W WO 2023248018 A1 WO2023248018 A1 WO 2023248018A1
Authority
WO
WIPO (PCT)
Prior art keywords
incision
semi
sealed single
package
dose package
Prior art date
Application number
PCT/IB2023/054044
Other languages
English (en)
Inventor
Andrea Taglini
Tomas DI GIROLAMO
Original Assignee
Easysnap Technology S.R.L.
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 Easysnap Technology S.R.L. filed Critical Easysnap Technology S.R.L.
Publication of WO2023248018A1 publication Critical patent/WO2023248018A1/fr

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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
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/36—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed
    • B65D75/366—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed and forming one compartment
    • 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/585—Tear-lines provided in a wall portion the tear-lines being broken by deformation or bending
    • 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
    • B65D2221/00—Small packaging specially adapted for product samples, single-use packages or échantillons

Definitions

  • the present invention relates to the field of packaging and in particular to the field of sealed single-dose packages with a break opening of the "one hand opening" type , i . e . which may be opened by bending the package with one hand .
  • the obj ect of the present invention is to provide a sealed single-dose package with a break opening which meets the needs of the field and at the same time overcomes the aforementioned drawbacks .
  • Figure 1 shows a sealed single-dose package according to an embodiment of the present invention, shown from the front ;
  • Figure 2 shows an example diagram of the multilayer structure of a semi-rigid sheet of the package according to one embodiment of the invention
  • Figure 3 shows the front face of a semi-rigid sheet of the package , according to one embodiment of the invention
  • Figure 4 shows the rear face of a semi-rigid sheet of the package , according to one embodiment of the invention
  • Figures 5a to 5b show further embodiments of the rear face of the semi-rigid sheet of the package ;
  • Figures 6a to 6c show some embodiments of the semi-rigid sheet of the package ;
  • Figures 7a to 7c show further embodiments of the semi-rigid sheet of the package ;
  • FIGS. 8a and 8b show still further embodiments of the rear face of the semi-rigid sheet o f the package .
  • reference numeral 1 denotes a sealed single-dose package with a break opening .
  • the package 1 comprises a semi-rigid sheet 2 , delimited by a peripheral edge 3 and having a rear face 2a and an opposite front face 2b, and a flexible sheet 4 , having an inner face 4a and an outer face 4b .
  • the flexible sheet 4 is superimposed on the semi-rigid sheet 2 , in such a way that the inner face 4a is facing the front face 2b, and is welded thereto , so as to form an inner pocket 6 for containing one dose of a product , generally a creamy or thick or gel-like product , such as a hand saniti zing gel .
  • the semirigid sheet 2 has a rectangular shape and has opposite long sides 3 ' and opposite short sides 3 ' ’ ; the semirigid sheet 2 extends along a longitudinal axis X parallel to the long sides 3 ' .
  • the semi-rigid sheet 2 which for example has a thickness of between 300 - 750 microns overall , is a multi-layer laminate comprising a carrier layer 10 having said rear face 2a .
  • the carrier layer 10 which is mono- layer or multi-layer, is made of paper, cardboard or another material mainly based on cellulose ( i . e . based on cellulose for at least 50% by weight ) .
  • the carrier layer 10 has , for example , a thickness of between 250 - 700 microns .
  • the semi-rigid sheet 2 comprises a barrier layer 12 suitable for providing a barrier against the passage of gas , for example oxygen, and vapor .
  • the barrier layer 12 is mono-layer or multi-layer, in aluminum or EVOH ( ethylene vinyl alcohol ) , or combinations thereof .
  • EVOH ethylene vinyl alcohol
  • some films may be made from non-barrier materials .
  • the carrier layer 10 has a film coated onto the face opposite the front face 2a, wherein said coated film has barrier properties .
  • the carrier layer 10 is subj ected to chemical treatment so as to cause it to assume barrier properties , at least upon the face opposite to the rear face 2a .
  • a metalli zed film for example metalli zed PET or metalli zed PE , is bonded to the carrier layer 10 , wherein the metalli zation faces towards the paper .
  • the semi-rigid sheet 2 On the opposite side of the rear face 2a, and preferably between the carrier layer 10 and the barrier layer 12 , the semi-rigid sheet 2 also comprises at least one intermediate layer 14 , which is mono-layer or multilayer, comprising an adhesive or an extruded polymer, for example polyethylene or polypropylene , or another material that binds with the carrier layer 10 .
  • intermediate layer 14 which is mono-layer or multilayer, comprising an adhesive or an extruded polymer, for example polyethylene or polypropylene , or another material that binds with the carrier layer 10 .
  • the semi-rigid sheet 2 comprises a final layer 16 having said front face 2b .
  • the final layer 16 which is mono-layer or multi-layer, comprises polyethylene or polypropylene or a solder varnish or another material that is adapted to be welded to the flexible film 4 .
  • the flexible sheet 4 is a multi-layer laminate comprising an inner layer having said inner face 4a .
  • the inner layer which is mono-layer or multi-layer, comprises polyethylene or polypropylene or a solder varnish or another material suitable for being welded to the semi-rigid film 2 .
  • the flexible sheet 4 comprises an outer layer having said outer face 4b .
  • the outer layer 32 which is mono-layer or multi-layer, comprises paper, cardboard or another material mainly based on cellulose .
  • the flexible sheet 4 preferably comprises an intermediate layer arranged between the inner layer and the outer layer .
  • the intermediate layer which is mono-layer or multi-layer, has barrier properties and comprises aluminum or EVOH, and/or has binding properties with the inner layer 30 and with the outer layer 32 .
  • the outer layer has a film coated upon the face opposite the outer face 4b, wherein said coated film has barrier properties .
  • the flexible sheet 4 has no intermediate layer and the inner layer is directly in contact with the outer layer .
  • the package 1 provides that the paper, cardboard or other mainly cellulose-based material of the semi-rigid sheet and the paper, cardboard or other mainly cellulose-based material of the flexible sheet together constitute at least 60% by weight of the entire ( empty) package .
  • the semi-rigid sheet 2 has a weakened portion, and in particular at least one incision, in order to allow the package to be opened .
  • controlled breakage of the semi-rigid sheet 2 is determined along this weakened portion so as to determine the formation through said sheet of an opening for the product to escape .
  • an inner incision 20 that extends along an incision direction Y which is for example transversal , i . e . , in the above embodiment , along a direction incident to the longitudinal axis X, preferably orthogonal thereto .
  • the inner incision 20 impacts upon the final layer 16 , without af fecting the barrier layer 12 .
  • the inner incision 20 may be a cut passing through the layers or else a locali zed deformation of the layers themselves .
  • the inner incision 20 as the depth varies , has a constant cross section .
  • the inner incision 20 has a tapered cross section, wherein it has a triangular cross section with the point towards the carrier layer 10 .
  • the barrier layer 12 has an interruption, i . e . , it has a micro-hole 201 of extremely small dimensions .
  • the micro-hole 201 reali zes an opening in all of the layers of the semi-rigid sheet 2 , with the exception of the paper layer .
  • the micro-hole 201 is formed in the layers 14 , 12 , and 16 .
  • the micro-hole 201 at least partially follows the geometry of the inner incision 20 .
  • the micro-hole 201 serves to trigger the breaking of the barrier layer 12 , and to promote the breaking of any further elastic layers (the intermediate layer 14 and final layer 16 where present ) of the rigid sheet 2 , during the bending of the package .
  • the barrier layer 12 is elastic and tends to elongate rather than break, such as to prevent in some cases the correct opening of the package .
  • the micro-hole 201 during the bending of the package , therefore ensures the propagation of the cracking of the barrier layer 12 which then opens correctly .
  • the micro-hole 201 has an extension along the incision direction Y of at most 15 mm, and an extension along the longitudinal axis X of less than 35 microns .
  • the micro-hole 201 crosses all of the layers of the semi-rigid sheet 2 except the paper carrier layer 10 .
  • the micro-hole 201 passes through the final layer 16, the barrier layer 12 and the intermediate layer 14 .
  • the micro-hole 201 extends in such a way as to also partially act upon the paper carrier layer 10 .
  • the micro-hole 201 is separated from the external environment by the interposition of a portion of the barrier layer 10 , referred to as the barrier portion 101 .
  • the barrier portion 101 is therefore the portion of the barrier layer 10 that is interposed between the micro-hole 201 of the barrier layer 12 and the external environment .
  • the barrier portion 101 of the barrier layer 10 has a minimum thickness of 10 microns .
  • the paper that makes up the carrier layer 10 does not have barrier properties as regards the passage of gas and vapor, or in any case not signi ficant properties thereto .
  • the extremely small si ze of the micro-hole 201 does however mean that the surface of the carrier layer 10 , which in ef fect remains without a barrier layer 12 , is so small that it is irrelevant to the shel f li fe of the product .
  • the package according to the present invention is particularly suitable for dense fluid products, insofar as they are not absorbed by the paper, cardboard or cellulose barrier layer 10.
  • the package according to the present invention is particularly suitable for fluid products with a dynamic density of between 10 and 4, 000 Pose (P) , i.e. of between 1 and 400 Poiseuille ( PI ) .
  • the rear face 2a of the semirigid sheet 2, at the pocket 6, has an outer incision 8 extending along an incision direction Y which is for example transversal, i.e., in the aforementioned embodiment, along a direction incident to the longitudinal axis X, preferably orthogonal thereto.
  • the outer incision 8 is suitable for guiding, upon a bending of the package 1, a controlled breakage of the semi-rigid sheet 2 along the incision itself so as to determine the formation, through said semi-rigid sheet, of an opening for the product contained in the pocket 6 to escape.
  • the outer incision 8 joins two opposite points 3a, 3b of the peripheral edge 3; in the aforementioned embodiment, this means that it extends over the entire width of the rectangular semi-rigid sheet .
  • the outer incision 8 is interrupted before the perimeter edge 3, or it starts from a point on the peripheral edge 3 and is interrupted before reaching the other point of the peripheral edge 3 .
  • the outer incision 8 where present as in Figures 6a and 7a, partially crosses the carrier layer 10 of the semi-rigid sheet 2 .
  • Said incision has a depth H with respect to the front face 2a that is typically variable transversely along the outer incision 8 .
  • the depth is greatest in a central segment of the incision .
  • this variation in depth along the incision ensures the opening at breakage in a controlled manner, preventing the break from being sudden and therefore preventing the product from being proj ected outwards in a damaging manner .
  • the outer incision 8 is aligned, i . e . completely superimposed, with the inner incision 20 .
  • the outer incision 8 is misaligned, i . e . not completely superimposed, with the inner incision 20 .
  • the outer incision 8 has a constant cross section as the depth varies , as in the examples of Figures 6a to 6c, in which it has a rectangular or square cross section .
  • the outer incision 8 has a tapered cross section, as in the examples of Figures 7a to 7c, in which it has a triangular cross section with the point towards the carrier layer 10 .
  • the term "incision” refers exclusively to a cut that leads to the breaking of the structural continuity of the layers or films that make up a sheet .
  • the semi-rigid sheet 2 in order to facilitate the bending of the package , has at least one weakened portion that is separate and preferably aligned with the inner incision 20 .
  • the rear face 2a of the semi-rigid sheet 2 has at least one weakened portion; for example , the rear face 2a has two weakened portions 40 ' , 40 ' ’ placed side by side with the inner incision 20 . Where the outer incision 8 is present , the two weakened portions 40 ' , 40 ' ’ are aligned with the outer incision 8 . In such an example , the outer incision 8 is interrupted before the perimeter edge 3 . Said weakened portions have a depth less than or equal to that of the outer incision 8 .
  • each weakened portion consists of an incision ( Figure 5a ) .
  • each weakened portion consists of a plurality of holes .
  • each weakened portion consists of a recess obtained along the perimeter edge 3 of the semi-rigid sheet 2.
  • two recesses 42' , 42' ’ are provided, side-by-side with the inner incision 20.
  • the two recesses 42' , 42' ’ are aligned with the outer incision 8.
  • the outer incision 8 is interrupted before the perimeter edge 3.
  • the inner incision of the carrier layer has a constant depth.
  • the outer incision of the carrier layer has a constant depth.
  • the semi-rigid sheet has a circular or oval shape or a regular or mixed polygonal shape, i.e. consisting of rectilinear sections and arched sections .
  • the outer incision 8 extends along a broken line 85, i.e. a line consisting of an ordered set of segments oriented consecutively (i.e. the second end of a segment coincides with the first end of the next segment) and not adjacently (i.e. a segment and the next segment do not belong to the same line) .
  • the broken line 85 comprises two lateral segments 86 which are identical in size and aligned with each other (i.e. one segment lies on the extension of the other) .
  • the broken line 85 further comprises a main line 87 which is substantially offset with respect to the two lateral segments 86 and by two joining segments 88 which are substantially parallel to each other and preferably are substantially perpendicular to the two lateral segments 86.
  • each joining segment 88 connects an end of the lateral segment 86 to an end of the main line 87.
  • the main line 87 is a straight segment substantially parallel to the two lateral segments 86 and substantially perpendicular to the joining segments 88.
  • the main line 87 comprises two straight segments 87 ’ , 87' ’ which form therebetween an acute or obtuse angle, i.e. they are not aligned. Said straight segments 87 ’ , 87' ’ also form an acute or obtuse angle with the joining segments 88.
  • the main line 87 is an arc of circumference.
  • the broken line 85 comprises two lateral segments 86 which are identical in size and aligned therebetween (i.e.
  • the broken line 85 further comprises an arc of circumference, preferably a semi-circle, which connects an end of a first lateral segment 86 to an end of a second lateral segment 86.
  • the two lateral segments 86 and/or the joining segments 88 may be linear, angled or curved.
  • the package according to the present invention overcomes the drawbacks mentioned with reference to the prior art, insofar as it makes it possible to have a package having very low environmental impact, and that is in particular recyclable together with paper and capable of always opening itself correctly whilst providing an adequate barrier against the passage of gases, for example oxygen, and vapor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne un emballage de dose unique scellé (1), comprenant : une feuille semi-rigide multicouche (2), comportant une couche de support (10) constituée de papier, de carton ou d'un autre matériau à base de cellulose et une couche barrière aux gaz et à la vapeur (12) ; une feuille souple (4), superposée et soudée à la feuille semi-rigide (2) afin de former une poche interne (6) destinée à contenir une dose d'un produit ; une incision externe (8) dans la feuille semi-rigide (2), appropriée pour guider, lors d'un pliage de l'emballage (1), une rupture de la première feuille (2) pour former une ouverture permettant une distribution du produit contenu dans la poche (6). L'emballage est caractérisé en ce que la couche barrière (12) comporte un micro-trou (201) aligné avec ladite incision externe (8). Avantageusement, l'emballage s'ouvre toujours correctement en raison du micro-trou, qui représente le point de déclenchement de la rupture de la feuille semi-rigide, tout en garantissant une barrière adéquate contre le passage de gaz et de vapeur.
PCT/IB2023/054044 2022-06-22 2023-04-20 Emballage en papier de dose unique scellé à une ouverture à rupture améliorée WO2023248018A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102022000013210 2022-06-22
IT202200013210 2022-06-22

Publications (1)

Publication Number Publication Date
WO2023248018A1 true WO2023248018A1 (fr) 2023-12-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/054044 WO2023248018A1 (fr) 2022-06-22 2023-04-20 Emballage en papier de dose unique scellé à une ouverture à rupture améliorée

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986640A (en) * 1973-08-20 1976-10-19 Sanford Redmond Package for a flowable product and material for making such package
WO2001017875A1 (fr) * 1999-09-02 2001-03-15 Snap Pak Industries (Aust) Pty Ltd Sachet de distribution par pliage et son procede de fabrication
US20050178086A1 (en) * 2003-12-02 2005-08-18 Craig Bakken Dispensing package
WO2009040629A2 (fr) * 2007-09-24 2009-04-02 Diapack Limited Emballage scellé à ouverture par rupture pour dose unique
US20110170938A1 (en) * 2010-01-14 2011-07-14 Janet Sue Littig Apparatus for Treating a Stain in Clothing
WO2013054169A1 (fr) * 2011-10-11 2013-04-18 Mepar Societa' A Responsabilita' Limitata Conditionnement hermétique de dose individuelle à ouverture par rupture et procédé de fabrication d'un conditionnement hermétique de dose individuelle à ouverture par rupture
IT201800010275A1 (it) * 2018-11-13 2020-05-13 Easysnap Tech S R L Confezione sigillata con apertura a rottura

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986640A (en) * 1973-08-20 1976-10-19 Sanford Redmond Package for a flowable product and material for making such package
WO2001017875A1 (fr) * 1999-09-02 2001-03-15 Snap Pak Industries (Aust) Pty Ltd Sachet de distribution par pliage et son procede de fabrication
US20050178086A1 (en) * 2003-12-02 2005-08-18 Craig Bakken Dispensing package
WO2009040629A2 (fr) * 2007-09-24 2009-04-02 Diapack Limited Emballage scellé à ouverture par rupture pour dose unique
US20110170938A1 (en) * 2010-01-14 2011-07-14 Janet Sue Littig Apparatus for Treating a Stain in Clothing
WO2013054169A1 (fr) * 2011-10-11 2013-04-18 Mepar Societa' A Responsabilita' Limitata Conditionnement hermétique de dose individuelle à ouverture par rupture et procédé de fabrication d'un conditionnement hermétique de dose individuelle à ouverture par rupture
IT201800010275A1 (it) * 2018-11-13 2020-05-13 Easysnap Tech S R L Confezione sigillata con apertura a rottura

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