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WO2017060542A1 - Dispositif d'ouverture/fermeture pour emballage souple jetable - Google Patents

Dispositif d'ouverture/fermeture pour emballage souple jetable Download PDF

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Publication number
WO2017060542A1
WO2017060542A1 PCT/ES2015/000134 ES2015000134W WO2017060542A1 WO 2017060542 A1 WO2017060542 A1 WO 2017060542A1 ES 2015000134 W ES2015000134 W ES 2015000134W WO 2017060542 A1 WO2017060542 A1 WO 2017060542A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening
flap
closing
closing flap
base sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2015/000134
Other languages
English (en)
Spanish (es)
Inventor
José Gamundi Masque
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.)
Relieves Egara SL
Original Assignee
Relieves Egara SL
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 Relieves Egara SL filed Critical Relieves Egara SL
Priority to PCT/ES2015/000134 priority Critical patent/WO2017060542A1/fr
Publication of WO2017060542A1 publication Critical patent/WO2017060542A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession

Definitions

  • the present invention concerns an opening / closing device for a disposable flexible container, applicable in particular to wet wipe containers, in which the moisture of the wipes must be preserved allowing repeated uses, that is, containers provided with an opening device / closing capable of being repeatedly opened and closed and capable of providing airtightness when closed.
  • the invention is equally applicable to packages for other products, such as dried fruit bags, powdered baby food sachets, chewing gum packages, pasta dishes, and in general to those containers containing products that can be partially consumed in successive occasions and where the remaining product after each partial consumption needs to be stored tightly in the container until it has been completely used up.
  • EP 2202176 A1 discloses an opening / closing device for a disposable flexible container comprising a flexible base sheet, which in use is adhered to a flexible wall of the disposable container covering a dispensing opening formed therein.
  • This base sheet has contour cuts that define an opening / closing flap, which is connected to the rest of the base sheet by a fold line and has a bottom surface provided with removable adhesive, so that the opening flap / closure is movable between a closed position, in which the opening / closing flap is adhered to an area of the flexible container around the dispensing opening, closing it, and an open position, in which the opening / closing flap It is folded by the fold line and raised providing free access to the dispensing opening.
  • the base sheet comprises two layers, one bottom and one top, laminated, and the fold line is formed by a continuous cut that completely affects the bottom layer of the base sheet but not the top layer.
  • WO 2015056061 discloses an opening / closing device for a disposable flexible container similar to that of the aforementioned document EP 2202176 A1, where the base sheet can comprise two or three laminated layers of synthetic polymer material, and where the fold line between the opening / closing flap and the base sheet comprises a plurality of mutually aligned discontinuous cuts that affect only two of the three layers of the sheet or the entire thickness of the sheet.
  • US 6026953 A discloses an opening / closing device for a disposable flexible container similar to that of said document EP 2202176 A1, where the base sheet can comprise a single layer or several laminated layers of synthetic polymer material, and where the line Folding between the opening / closing flap and the base sheet comprises a thinning of the thickness of the sheet obtained by pressure.
  • a drawback of the background cited above is that they need to include an additional seal element that breaks when the opening / closing flap is opened for the first time in order to provide tamper evidence indicating whether the opening / closing flap It has already been opened previously.
  • an opening / closing device for disposable flexible packaging which comprises a base sheet having a bottom surface provided with adhesive to be adhered to a wall of the disposable flexible container covering an opening of dispensing formed therein.
  • the base sheet has one or more flap cut lines defining an opening / closing flap and a frame portion that at least partially surrounds the opening / closing flap.
  • the opening / closing flap is connected to the frame portion by a fold line, so that the opening / closing flap is movable between a closed position, in which the opening / closing flap is coplanar with the portion of frame, and an open position, in which the opening / closing flap is folded by the fold line.
  • the frame portion is permanently adhered to the disposable flexible container while the opening / closing flap, when in the closed position, is adhered to an area of the disposable flexible container around the dispensing opening, and when in In the open position, the opening / closing flap is raised providing free access to the dispensing opening.
  • the base sheet comprises a single layer made of a synthetic polymeric material and the one or more flap cut lines are formed by incomplete cuts that initially affect almost all but not all. the thickness of the base sheet or by a few cuts mutually aligned discontinuous, and where such incomplete cuts or mutually aligned discontinuous cuts are completed or finished breaking when the opening / closing flap is first opened.
  • the one or more flap cut lines that separate the opening / closing flap of the frame portion act as a guarantee seal and provide evidence of tampering without disturbing the normal operation of the opening / closing device and without the need of including an additional seal element in the opening / closing device.
  • the base sheet comprises a single layer makes possible the reliable implementation of said incomplete cuts, which would be very difficult to make on a base sheet formed by several laminated layers since, in such case, each of the multiple layers would have a comparatively smaller thickness than the thickness of a single layer, and incomplete cuts should completely affect one of the outer layers and all intermediate layers, if any, and only partially affect the other outer layer comparatively very thin.
  • the frame portion includes a retention cut located on one side of the fold line opposite the opening / closing flap and an adhesive-free retention area adjacent to the retention cut on the bottom surface of the sheet base, and the opening / closing flap has a prominent contour portion insertable in the adhesive-free retention area through the retention cut when the opening / closing flap is in the open position.
  • the opening / closing flap when the prominent contour portion of the opening / closing flap is inserted into the adhesive-free retention area through the retention cut, the opening / closing flap is retained in the open position at an angle of approximately 180 degrees with the frame portion, thereby counteracting the tendency of the opening / closing flap to close spontaneously from the open position to the closed position due to poor flexibility of the bending line.
  • an outline of the opening / closing flap defined by the one or more flap cutting lines has a generally rectangular shape with rounded corners, and the prominent contour portion of the opening / closing flap is constituted by one of such rounded corners.
  • the retention cut is oriented in an inclined direction relative to the sides of the rectangular shape.
  • the opening / closing flap could have an outline of any other shape as long as it had a prominent contour portion. properly sized and positioned to be inserted in the adhesive-free retention area through the retention cut.
  • the opening / closing flap has a gripping tongue located on one side of the opening / closing flap opposite the fold line, and the gripping tongue has an adhesive free grip area on the bottom surface of the base sheet for easy manual grip of the grip tab and the lifting of the opening / closing flap.
  • the adhesive-free grip area extends into an area of the opening / closing flap adjacent to the one or more flap cut lines on both sides of the grip tab.
  • the frame portion is interrupted by the grip tab.
  • the synthetic polymeric material that constitutes the sole layer of the base sheet is, for example, polyethylene, polypropylene, polyester, polyamide, or polyvinyl chloride.
  • the bending line is defined by a plurality of mutually aligned discontinuous cuts that affect the entire thickness of the base sheet.
  • Fig. 1 is a top plan view of an opening / closing device for disposable flexible container according to an embodiment of the present invention in a closed position;
  • Fig. 2 is a bottom plan view of the opening / closing device of Fig. 1 in the closed position
  • Fig. 3 is a top plan view of the opening / closing device of Fig. 1 in an open position
  • Fig. 4 is a cross-sectional view of an enlarged detail illustrating a flap cut line of the opening / closing device of Fig. 1 which acts as a guarantee seal according to one embodiment;
  • Fig. 5 is a cross-sectional view similar to Fig. 4 illustrating the broken warranty seal providing evidence of tampering;
  • Y Fig. 6 is a plan view of an enlarged detail illustrating a flap cut line of the opening / closing device of Fig. 1 which acts as a guarantee seal according to another embodiment.
  • a flap cut line of the opening / closing device of Fig. 1 which acts as a guarantee seal according to another embodiment.
  • the opening / closing device of the present invention comprises, in accordance with the embodiment shown in Figs. 1 to 3, a base sheet 1 comprising a single layer made of a synthetic polymeric material, such as, for example, polyethylene, polypropylene, polyester, polyamide, or polyvinyl chloride, optionally transparent.
  • the base sheet 1 has a bottom surface provided with an adhesive 5 (indicated by shading in Figs. 2 and 3).
  • the base sheet 1 has flap cut lines 8 defining an opening / closing flap 2 and a frame portion 7.
  • the opening / closing flap 2 is connected to the frame portion 7 by a fold line 6, and the frame portion 7 partly surrounds the opening / closing flap 2.
  • the fold line 6 is defined by a plurality of mutually aligned discontinuous cuts.
  • the opening / closing flap 2 is movable between a closed position (Figs. 1 and 2), in which the opening / closing flap 2 is coplanar with the frame portion 7, and an open position (Fig. 3), in which the opening / closing flap 2 is folded by the fold line 6.
  • the base sheet 1 can be supplied with the bottom surface, where the adhesive 5 is located, covered with a sheet of non-stick protective paper (not shown). In an operative situation, the base sheet 1 is adhered by means of the adhesive 5 to a wall of the disposable flexible container (not shown) covering a dispensing opening formed therein.
  • the frame portion 7 is permanently adhered to the wall of the disposable flexible container (not shown) while the opening / closing flap 2, when in the closed position (Figs. 1 and 2), is adhered to a area of the wall of the disposable flexible container around the dispensing opening so that the dispensing opening is covered and closed by the opening / closing flap 2, and when in the open position (Fig. 3), the flap of opening / closing 2 is raised providing free access to the dispensing opening.
  • the aforementioned flap cut lines 8 defining the opening / closing flap 2 have curved end portions 8a at their ends adjacent to the fold line 6, convex in relation to the open / close flap 2 and mutually facing each other, which extend out of the opening / closing flap 2.
  • the fold line 6 has opposite ends that connect to the curved end portions 8a of the flap cut lines 8. In the illustrated example, the fold line 6 is substantially tangent to both curved end portions 8a.
  • the opening / closing flap 2 has a grip tab 4 located on the side opposite to the fold line 6, and this grip tab 4 has an adhesive free grip area 4a (Figs. 2 and 3) on the bottom surface of the base sheet 1.
  • the adhesive free grip area 4a extends over a narrow area of the opening / closing flap 2 adjacent to the flap cutting lines 8 on both sides of the grip tab 4 to facilitate the opening of the opening of the opening / closing flap 2 and to avoid tearing at the junction between the tongue of the grip 4 and the opening flap closure 2.
  • the frame portion 7 does not completely surround the opening / closing flap 2 since it is interrupted by the grip tab 4.
  • the flap cut lines 8 separating the opening / closing flap 2 of the frame portion 7 comprise incomplete cuts that initially affect almost all but not the entire thickness of the base sheet 1 (Fig. 4 ). These incomplete cuts are completed or finished breaking when the opening / closing flap 2 is opened for the first time (Fig. 5), for example by pulling up on the tongue 4, so that the cutting lines flap 8 acts as a guarantee seal and provides evidence of tampering without disturbing the normal operation of the opening / closing device and without the need to include an additional seal element in the opening / closing device.
  • Fig. 6 shows an alternative embodiment in which the flap cut lines 8 comprise mutually aligned discontinuous cuts that initially affect the entire thickness of the base sheet 1 but are separated from each other by uncut spaces, where each One of the discontinuous cuts has a length A approximately equal to a length B of the uncut spaces between two adjacent discontinuous cuts.
  • the frame portion 7 has a retention cut 3 formed on one side of the fold line 6 opposite the opening / closing flap 2, and on the bottom surface of the base sheet 1 there is provided a retention area free of adhesive 3a adjacent to retention cut 3.
  • the opening / closing flap 2 has a prominent contour portion 2a which, when the opening / closing flap 2 is in the open position at an angle of approximately 180 degrees with the frame portion 7, can be inserted in the adhesive-free retention area 3a through the retention cut 3, which allows the opening / closing flap 2 to be retained in the open position.
  • the contour of the opening / closing flap 2 defined by the one or more flap cutting lines 8 has a generally rectangular shape with rounded corners, and one of these rounded corners constitutes said contour portion prominent 2a of the opening / closing flap 2. Accordingly, the retaining cut 3 is arranged in an inclined position relative to the sides of the rectangular shape of the opening / closing flap 2.
  • the frame portion 7 has an outline exterior 9 which also has a generally rectangular shape with rounded corners.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

L'invention concerne un dispositif d'ouverture/fermeture pour emballage souple jetable comprenant une feuille de base (1) qui présente une surface inférieure pourvue d'adhésif (5) et une ou plusieurs lignes de découpe de rabat (8) qui définissent un rabat d'ouverture/fermeture (2) entourée au moins partiellement d'une partie de cadre (7). Le rabat d'ouverture/fermeture (2) est relié à la partie de cadre (7) par une ligne de pliage (6) et est mobile entre une position fermée, coplanaire avec la partie de cadre (7), et une position ouverte, dans laquelle le rabat d'ouverture/fermeture (2) est plié sur la ligne de pliage (6). La feuille de base (1) comprend une unique couche et les lignes de découpe de rabat (8) comprennent des découpes incomplètes qui initialement n'affectent pas la grosseur de la feuille de base (1) et sont complétées lorsque le rabat d'ouverture/fermeture (2) est ouvert la première fois.
PCT/ES2015/000134 2015-10-09 2015-10-09 Dispositif d'ouverture/fermeture pour emballage souple jetable Ceased WO2017060542A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/000134 WO2017060542A1 (fr) 2015-10-09 2015-10-09 Dispositif d'ouverture/fermeture pour emballage souple jetable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/000134 WO2017060542A1 (fr) 2015-10-09 2015-10-09 Dispositif d'ouverture/fermeture pour emballage souple jetable

Publications (1)

Publication Number Publication Date
WO2017060542A1 true WO2017060542A1 (fr) 2017-04-13

Family

ID=58488057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2015/000134 Ceased WO2017060542A1 (fr) 2015-10-09 2015-10-09 Dispositif d'ouverture/fermeture pour emballage souple jetable

Country Status (1)

Country Link
WO (1) WO2017060542A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679693A (en) * 1986-05-14 1987-07-14 Harold Forman Label resealing container
EP0488967A1 (fr) * 1990-11-27 1992-06-03 SOCIETA' CONSORTILE RICERCHE ANGELINI S.p.A Récipient distributeur avec un élément de fermeture amélioré, notamment pour des serviettes impregnées ou similaires
US20040089578A1 (en) * 2002-11-12 2004-05-13 Lin Pai Yung Napkin container having openable and sealable cover
WO2011146658A1 (fr) * 2010-05-18 2011-11-24 Kraft Foods Global Brands Llc Emballage flexible refermable et ses procédés de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679693A (en) * 1986-05-14 1987-07-14 Harold Forman Label resealing container
EP0488967A1 (fr) * 1990-11-27 1992-06-03 SOCIETA' CONSORTILE RICERCHE ANGELINI S.p.A Récipient distributeur avec un élément de fermeture amélioré, notamment pour des serviettes impregnées ou similaires
US20040089578A1 (en) * 2002-11-12 2004-05-13 Lin Pai Yung Napkin container having openable and sealable cover
WO2011146658A1 (fr) * 2010-05-18 2011-11-24 Kraft Foods Global Brands Llc Emballage flexible refermable et ses procédés de fabrication

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