EP0699163B1 - Flexible tubular bag for hygienic articles and process for producing the same - Google Patents

Flexible tubular bag for hygienic articles and process for producing the same Download PDF

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Publication number
EP0699163B1
EP0699163B1 EP94917643A EP94917643A EP0699163B1 EP 0699163 B1 EP0699163 B1 EP 0699163B1 EP 94917643 A EP94917643 A EP 94917643A EP 94917643 A EP94917643 A EP 94917643A EP 0699163 B1 EP0699163 B1 EP 0699163B1
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EP
European Patent Office
Prior art keywords
flexible tubular
tubular bag
sidewall
bottom wall
foil
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.)
Expired - Lifetime
Application number
EP94917643A
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German (de)
French (fr)
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EP0699163A1 (en
Inventor
Christof Stary
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Procter and Gamble Co
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Procter and Gamble Co
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Publication date
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Publication of EP0699163A1 publication Critical patent/EP0699163A1/en
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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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5855—Peelable seals
    • 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
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • 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
    • B65D83/0805—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall

Definitions

  • the invention relates to a tubular film bag for receiving hygiene articles, in particular stacked cotton pads according to the preamble of claim 1 and a method for its production.
  • a very fundamental problem also lies in the fact that the contents of the bag can become dirty over time through the entry of foreign bodies or dust through the removal opening.
  • the object of the invention is to develop such a tubular film bag in such a way that reliable protection of the bag contents from soiling is ensured. At the same time, this further development should not significantly increase the manufacturing effort, since such tubular film bags are pronounced mass products.
  • a cover flap for covering the removal opening is provided in the tubular film bag, which is attached in one piece to the bag side wall and / or the bag end wall.
  • a cover flap for covering the removal opening is provided in the tubular film bag, which is attached in one piece to the bag side wall and / or the bag end wall.
  • it can be releasably connected to the tubular bag in the area of its flap surface, which can be done, for example, by means of a pressure-sensitive adhesive point (claim 6) or a double-sided adhesive label which is attached to the cover flap or to the tubular bag in the form of a sprayed-on, pressure-sensitive adhesive can be.
  • the removal opening can be closed again at any time, thereby preventing the hygiene articles from becoming dirty due to the entry of dust, moisture or the like into the interior of the bag and preventing them from accidentally falling out.
  • the tubular film bag is particularly easy to produce, since no separate film cut has to be made for the cover flap.
  • a tubular film bag serves to hold stacked, circular cotton pads 1.
  • the tubular film bag has a bag side wall 2 which forms a cylindrical bag shape and consists of two side wall parts 5, 6 connected by weld seams 3, 4 is composed. At the upper end, the two side wall parts 5, 6 are connected to one another by a transverse weld 7, wherein Below this weld 7, a hanging cord 8 is pulled through the side wall parts 5, 6 and knotted at both ends (node 9).
  • the two side wall parts 5, 6 merge in one piece into a bottom wall 11 arranged on the end face, which is also welded in the area of the two weld seams 3, 4 and thereby forms the two side gussets 12, 13.
  • a cover flap 14 is provided in the middle between the two weld seams 3, 4 and consists of two film layers 15, 16 lying congruently one above the other. The latter continue in one piece from the side wall part 5 and on the other hand in one piece from the bottom wall 11.
  • the width b of this cover flap 14 corresponds approximately to half the diameter d of the tubular film bag.
  • Their length 1 corresponds approximately to 1.5 times the diameter d, so that the cover flap 14 can be pulled over the bottom 10 of the tubular film bag onto the opposite side wall part 6 in accordance with the arrow 17 and can be detached from a pressure-sensitive adhesive using a pressure-sensitive adhesive point 18 sprayed there the tubular film bag is connectable.
  • a double-sided adhesive label 18 ' can also be used, which is applied as a so-called transfer label during the manufacture of the tubular film bag in front of the free end of the cover flap 14.
  • the achievable adhesive strengths of the adhesive coatings on both sides of the label 18 ' are set such that the adhesive strength of the coating on the cover flap side is only about one fifth of the adhesive strength of the coating on the other side. This means that when the cover flap 14 is pushed around on the opposite side wall part 6, analogous to arrow 17 and the label 18 'is pressed onto this side wall part 6, when the cover flap 14 is subsequently pulled off for opening, the label 18' detaches from the cover flap 14 and on the side wall part 6 remains. There it serves to repeatedly fix the cover flap 14 in its closed state.
  • the two film layers 15, 16 are connected to one another by a weld seam 19 (shown in broken lines in FIG. 1), so that the one between the two film layers 15, 16 existing space is not accessible for cotton pads 1 or fluff, dust or the like.
  • the cover flap 14 is provided with an embossing reinforcement 20, which forms a grip part for gripping the cover flap 14.
  • the removal opening 21 can be covered, which can be created by removing the area in the bottom wall 11 delimited by the oval perforation 22.
  • a further double-sided adhesive label 18 ′′ is located in the center of this area, the adhesive coatings of which on both sides achieve the same adhesive strength formed between the area of the bottom wall delimited by the perforation 22 and the cover flap 14, which leads to the said automatic tearing open of the removal opening 21.
  • the perforation 22 points to the area facing away from the cover flap 14 on the bag Has a continuous slot 22 ', the length of which is approximately 1 to 2 cm. From the ends of the slot, when the cover flap 14 is pulled off for the first time, the tear-open process along the perforation 22 begins.
  • the slot 22' also assists in venting the bag when filling W attepads 1, as the slot 22 'opens and the air can escape. The tamper-evident opening can only be torn open by the consumer.
  • the film web 23 is then turned over from one side in order to form two film layers 24, 25 lying one above the other. Due to the cover from one side, the two layers of film 24, 25 are through on the edges a cover edge 26 extending in the pull-off direction A is connected (FIG. 3B).
  • a pressure-sensitive adhesive point 18 made of a pressure-sensitive adhesive is sprayed on at a corresponding point in the upper film layer 24.
  • This foil layer arrangement is then folded in asymmetrically from the cover edge 26, a short, inwardly directed bottom wall fold 27 and a longer flap fold 28 running between this and the lower foil layer 25 being formed (FIG. 3C).
  • the bottom wall fold 27 has an inner fold edge 29 running parallel to the pull-off direction A.
  • the upper film layer 24 is delimited by the folding edge 30 which also extends to the pull-off direction A.
  • the tab fold 28 has a fold edge 31 on the edge and forms the above-mentioned film layers 15, 16 of the cover tab 14.
  • the film tubular bag shown in the flat state in FIG. 4 is formed from the film layer arrangement according to FIG. 3C by a suitable separation welding tool.
  • This separation welding tool separately welds the two film layers 24, 25 of the film web 23 to form the straight weld seams 3.4 which run transversely to the withdrawal direction A and which connect the two side wall parts 5, 6 formed from the film layers 24, 25.
  • the weld seams 3, 4 extend to just above the fold edge 30 between the upper film layer 24 and the bottom wall fold 27.
  • the bottom wall fold 27 is also included in the area of the two weld seams 3, 4, whereby the two gussets 12, 13 are formed.
  • the separating welding tool continues in such a way that separating welding seam sections 33, 34 extending in the withdrawal direction A and a welding seam section 35 connecting them and defining the outline shape of the cover flap 14 are formed.
  • the weld seam 19, which connects the two film layers 15, 16 of the cover flap 14, is placed between the two mutually facing ends of the weld seam sections 33, 34.
  • the separating welding seam sections 33, 34 and the welding seam 19 lie a short distance laterally next to the folded edge 30, so that the welding tool can easily attack. However, it should be noted that by a Raising the folded edge 30, the weld seam 19 and the two weld seam sections 33, 34 can also be applied in alignment with this folded edge 30.

Abstract

PCT No. PCT/EP94/01602 Sec. 371 Date Nov. 27, 1995 Sec. 102(e) Date Nov. 27, 1995 PCT Filed May 18, 1994 PCT Pub. No. WO94/27889 PCT Pub. Date Dec. 8, 1994A flexible tubular bag for hygienic articles has a sidewall (2) which forms a cylindrical bag and a front wall (bottom wall 11) provided with an outlet (21). The walls (sidewall 2, bottom wall 11) are formed of a single foil web (23). A covering flap (14) set on the sidewall (2) and/or front wall (bottom wall 11) so as to form a single piece therewith covers the outlet (21). The surface of the covering flap (14) may be detachably joined to the flexible tubular bag.

Description

Die Erfindung betrifft einen Folienschlauchbeutel zur Aufnahme von Hygieneartikeln, insbesondere gestapelter Watte-Pads nach dem Oberbegriff des Patentanspruches 1 sowie ein Verfahren zu dessen Herstellung.The invention relates to a tubular film bag for receiving hygiene articles, in particular stacked cotton pads according to the preamble of claim 1 and a method for its production.

Bei solchen gattungsgemäßen Folienschlauchbeuteln besteht das Problem, daß die Hygieneartikel unkontrolliert aus der Entnahmeöffnung austreten können, da letztere in der Regel in der den Boden des Folienschlauchbeutels bildenden Beutelstirnwand angeordnet ist. Der Grund hierfür liegt darin, daß am oberen Ende des Folienschlauchbeutels eine Aufhängevorrichtung in Form einer Kordel vorgesehen ist, so daß der Folienschlauchbeutel als Art Spender aufgehängt und die beispielsweise darin befindlichen Watte-Pads sukzessive aus der untenliegenden Entnahmeöffnung herausgezogen werden können.The problem with such generic tubular film bags is that the hygiene articles can emerge from the removal opening in an uncontrolled manner, since the latter is generally arranged in the end wall of the bag forming the bottom of the tubular film bag. The reason for this is that a hanging device in the form of a cord is provided at the upper end of the tubular film bag, so that the tubular film bag can be suspended as a kind of dispenser and the cotton pads, for example, located therein can be successively removed from the removal opening below.

Ein ganz grundsätzliches Problem liegt darüber hinaus darin, daß der Beutelinhalt mit der Zeit durch Fremdkörper- oder Staubeintritt über die Entnahmeöffnung verschmutzen kann.A very fundamental problem also lies in the fact that the contents of the bag can become dirty over time through the entry of foreign bodies or dust through the removal opening.

Ausgehend von dem geschildenen Nachteil der Folienschlauchbeutel nach dem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen solchen Folienschlauchbeutel so weiterzubilden, daß ein zuverlässiger Schutz des Beutelinhalts vor Verschmutzungen gewährleistet ist. Gleichzeitig soll durch diese Weiterbildung der Herstellungsaufwand nicht wesentlich erhöht werden, da es sich bei solchen Folienschlauchbeuteln um ausgesprochene Massenprodukte handelt.Starting from the described disadvantage of the tubular film bag according to the prior art, the object of the invention is to develop such a tubular film bag in such a way that reliable protection of the bag contents from soiling is ensured. At the same time, this further development should not significantly increase the manufacturing effort, since such tubular film bags are pronounced mass products.

Diese Aufgabe wird in produkttechnischer Hinsicht durch die im Kennzeichnungsteil des Anspruches 1 angegebenen Merkmale bzw. in herstellungstechnischer Hinsicht durch die im Kennzeichnungsteil des Anspruches 7 angegebenen Verfahrensmerkmale gelöst. Demnach ist bei dem Folienschlauchbeutel eine Abdecklasche zum Abdecken der Entnahmeöffnung vorgesehen, die an die Beutelseitenwand und/oder Beutelstirnwand einstückig angesetzt ist. Zur Sicherung der Abdecklasche in ihrer Abdeckstellung ist sie im Bereich ihrer Laschenfläche lösbar mit dem Schlauchbeutel verbindbar, was z.B. mittels eines Haftklebepunktes (Anspruch 6) oder eines doppelseitigen Klebeetiketts geschehen kann, der an der Abdecklasche oder am Schlauchbeutel in Form eines aufgesprühten, drucksensitiven Klebstoffes angebracht sein kann.This object is achieved in terms of product technology by the features specified in the characterizing part of claim 1 or in terms of manufacturing technology by the method features specified in the characterizing part of claim 7. Accordingly, a cover flap for covering the removal opening is provided in the tubular film bag, which is attached in one piece to the bag side wall and / or the bag end wall. To secure the cover flap in its cover position, it can be releasably connected to the tubular bag in the area of its flap surface, which can be done, for example, by means of a pressure-sensitive adhesive point (claim 6) or a double-sided adhesive label which is attached to the cover flap or to the tubular bag in the form of a sprayed-on, pressure-sensitive adhesive can be.

Aufgrund dieser Abdecklasche kann die Entnahmeöffnung jederzeit wieder verschlossen werden, wodurch eine Verschmutzung der Hygieneartikel durch Eintreten von Staub, Feuchtigkeit oder dergleichen in den Beutelinnenraum und ein unbeabsichtigtes Herausfallen vermieden werden.Due to this cover flap, the removal opening can be closed again at any time, thereby preventing the hygiene articles from becoming dirty due to the entry of dust, moisture or the like into the interior of the bag and preventing them from accidentally falling out.

Durch die einstückige Ausbildung der Abdecklasche mit dem Folienschlauchbeutel, wie dies verfahrenstechnisch im Kennzeichen des Anspruches 7 angegeben ist, ist der Folienschlauchbeutel besonders einfach herstellbar, da kein gesonderter Folienzuschnitt für die Abdecklasche angebracht werden muß.Due to the one-piece design of the cover flap with the tubular film bag, as is procedurally indicated in the characterizing part of claim 7, the tubular film bag is particularly easy to produce, since no separate film cut has to be made for the cover flap.

Weitere vorrichtungs- und verfahrenstechnische Merkmale sowie Einzelheiten und Vorteile der Erfindung sind der nachfolgenden Beschreibung entnehmbar, in der ein Ausführungsbeispiel des Erfindungsgegenstandes sowie des erfindungsgemäßen Verfahrens anhand der beiliegenden Figuren näher erläutert wird. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Folienschlauchbeutels gemäß der Erfindung,
Fig. 2
einen Schnitt durch den Folienschlauchbeutel entlang der Schnittlinie II-II nach Fig. 1,
Fig. 3A-C
Schnitte durch eine Folienbahn quer zur Abzugsrichtung in aufeinanderfolgenden Zwischenschritten bei der Fertigung des Folienschlauchbeutels und
Fig. 4
eine Draufsicht auf einen Folienschlauchbeutel in flachliegendem Zustand, wie er durch Trennschweißen aus der Folienbahn gemäß Fig. 3C erhältlich ist.
Further device and procedural features as well as details and advantages of the invention can be found in the following description, in which an embodiment of the subject matter of the invention and of the method according to the invention is explained in more detail with reference to the accompanying figures. Show it:
Fig. 1
2 shows a perspective view of a tubular film bag according to the invention,
Fig. 2
2 shows a section through the tubular film bag along the section line II-II according to FIG. 1,
3A-C
Cuts through a film web transverse to the take-off direction in successive intermediate steps in the manufacture of the film tubular bag and
Fig. 4
a plan view of a tubular film bag in the flat state, as can be obtained by separation welding from the film web according to FIG. 3C.

Wie aus den Fig. 1 und 2 deutlich wird, dient ein erfindungsgemäßer Folienschlauchbeutel zur Aufnahme von gestapelten, kreisrunden Wattepads 1. Der Folienschlauchbeutel weist eine Beutelseitenwand 2 auf, die eine zylindrische Beutelform bildet und aus zwei durch Schweißnähte 3,4 verbundene Seitenwandteilen 5,6 zusammengesetzt ist. Am oberen Ende sind die beiden Seitenwandteile 5,6 durch eine quer verlaufende Schweißnaht 7 miteinander verbunden, wobei unterhalb dieser Schweißnaht 7 eine Aufhängekordel 8 durch die Seitenwandteile 5,6 hindurchgezogen und an ihren beiden Enden verknotet (Knoten 9) ist.As is clear from FIGS. 1 and 2, a tubular film bag according to the invention serves to hold stacked, circular cotton pads 1. The tubular film bag has a bag side wall 2 which forms a cylindrical bag shape and consists of two side wall parts 5, 6 connected by weld seams 3, 4 is composed. At the upper end, the two side wall parts 5, 6 are connected to one another by a transverse weld 7, wherein Below this weld 7, a hanging cord 8 is pulled through the side wall parts 5, 6 and knotted at both ends (node 9).

Am Boden 10 des Folienschlauchbeutels gehen die beiden Seitenwandteile 5,6 einstückig in eine stirnseitig angeordnete Bodenwand 11 über, die im Bereich der beiden Schweißnähte 3,4 mit eingeschweißt ist und dadurch die beiden seitlichen Zwickel 12,13 bildet.At the bottom 10 of the tubular film bag, the two side wall parts 5, 6 merge in one piece into a bottom wall 11 arranged on the end face, which is also welded in the area of the two weld seams 3, 4 and thereby forms the two side gussets 12, 13.

Mittig zwischen den beiden Schweißnähten 3,4 ist eine Abdecklasche 14 vorgesehen, die aus zwei deckungsgleich übereinander liegenden Folienlagen 15,16 besteht. Letztere setzen sich einerseits einstückig aus dem Seitenwandteil 5 und andererseits einstückig aus der Bodenwand 11 fort. Die Breite b dieser Abdecklasche 14 entspricht etwa dem halben Durchmesser d des Folienschlauchbeutels. Ihre Länge 1 entspricht etwa dem 1,5-fachen des Durchmessers d, so daß die Abdecklasche 14 über den Boden 10 des Folienschlauchbeutels auf das gegenüberliegende Seitenwandteil 6 entsprechend dem Pfeil 17 gezogen werden kann und mittels eines dort aufgesprühten Haftklebepunktes 18 aus drucksensitivem Klebstoff lösbar mit dem Folienschlauchbeutel verbindbar ist.A cover flap 14 is provided in the middle between the two weld seams 3, 4 and consists of two film layers 15, 16 lying congruently one above the other. The latter continue in one piece from the side wall part 5 and on the other hand in one piece from the bottom wall 11. The width b of this cover flap 14 corresponds approximately to half the diameter d of the tubular film bag. Their length 1 corresponds approximately to 1.5 times the diameter d, so that the cover flap 14 can be pulled over the bottom 10 of the tubular film bag onto the opposite side wall part 6 in accordance with the arrow 17 and can be detached from a pressure-sensitive adhesive using a pressure-sensitive adhesive point 18 sprayed there the tubular film bag is connectable.

Statt des aufgesprühten Haftklebepunktes 18 kann auch ein doppelseitig klebendes Etikett 18' verwendet werden, das als sogenanntes Transfer-Etikett während der Herstellung des Folienschlauchbeutels vor dem freien Ende der Abdecklasche 14 aufgebracht wird. Die erzielbaren Klebkräfte der beiderseitigen Klebebeschichtungen des Etiketts 18' sind dabei so eingestellt, daß die Klebkraft der Beschichtung auf der Abdecklaschen-Seite nur etwa ein Fünftel der Klebkraft der Beschichtung auf der anderen Seite ist. Dies bedeutet, daß beim Herumschlagen der Abdecklasche 14 auf das gegenüberliegende Seitenwandteil 6 analog Pfeil 17 und dem Aufdrücken des Etikettes 18' auf dieses Seitenwandteil 6 sich beim darauffolgenden Abziehen der Abdecklasche 14 zum Öffnen das Etikett 18' von der Abdecklasche 14 löst und auf dem Seitenwandteil 6 verbleibt. Dort dient es zum wiederholten Fixieren der Abdecklasche 14 in deren geschlossenem Zustand.Instead of the sprayed-on pressure-sensitive adhesive point 18, a double-sided adhesive label 18 'can also be used, which is applied as a so-called transfer label during the manufacture of the tubular film bag in front of the free end of the cover flap 14. The achievable adhesive strengths of the adhesive coatings on both sides of the label 18 'are set such that the adhesive strength of the coating on the cover flap side is only about one fifth of the adhesive strength of the coating on the other side. This means that when the cover flap 14 is pushed around on the opposite side wall part 6, analogous to arrow 17 and the label 18 'is pressed onto this side wall part 6, when the cover flap 14 is subsequently pulled off for opening, the label 18' detaches from the cover flap 14 and on the side wall part 6 remains. There it serves to repeatedly fix the cover flap 14 in its closed state.

Im Ansatzbereich der Abdecklasche 14 an den Folienschlauchbeutel sind die beiden Folienlagen 15,16 durch eine Schweißnaht 19 (strichpunktiert dargestellt in Fig. 1) miteinander verbunden, so daß der zwischen den beiden Folienlagen 15, 16 bestehende Raum nicht für Wattepads 1 oder Flusen, Staub oder dergleichen zugänglich ist.In the attachment area of the cover flap 14 to the tubular film bag, the two film layers 15, 16 are connected to one another by a weld seam 19 (shown in broken lines in FIG. 1), so that the one between the two film layers 15, 16 existing space is not accessible for cotton pads 1 or fluff, dust or the like.

An ihrem freien Ende ist die Abdecklasche 14 mit einer Prägeverstärkung 20 versehen, die ein Griffteil zum Ergreifen der Abdecklasche 14 bildet.At its free end, the cover flap 14 is provided with an embossing reinforcement 20, which forms a grip part for gripping the cover flap 14.

Mittels der Abdecklasche 14 ist die Entnahmeöffnung 21 abdeckbar, die durch Heraustrennen des durch die ovale Perforation 22 umgrenzten Bereiches in der Bodenwand 11 geschaffen werden kann. Um ein automatisches Heraustrennen des durch die Perforation 22 umgrenzten Bereiches beim erstmaligen Öffnen der Abdecklasche 14 entgegen der Pfeilrichtung 17 zu erreichen, sitzt im Zentrum dieses Bereiches ein weiteres doppelseitig klebendes Etikett 18", dessen beidseitige Klebebeschichtungen gleiche Klebkräfte erzielen. Es wird also eine feste Verbindung zwischen dem von der Perforation 22 umgrenzten Bereich der Bodenwand und der Abdecklasche 14 gebildet, die zu dem besagten automatischen Aufreißen der Entnahmeöffnung 21 führt. Um dabei ein kontrolliertes Aufreißen der Perforation 22 zu unterstützen, weist diese auf der dem Ansatzbereich der Abdecklasche 14 am Beutel abgewandten Seite einen durchgehenden Schlitz 22' auf, dessen Länge etwa 1 bis 2 cm beträgt. Von den Enden des Schlitzes beginnt beim erstmaligen Abziehen der Abdecklasche 14 der Aufreißvorgang entlang der Perforation 22. Der Schlitz 22' unterstützt dabei auch eine Entlüftung des Beutels beim Einfüllen der Wattepads 1, da der Schlitz 22' sich dabei öffnen und dadurch die Luft entweichen kann. Durch die erst verbraucherseitig aufreißbare Entnahmeöffnung ist ein Originalitätsverschluß gegeben.By means of the cover flap 14, the removal opening 21 can be covered, which can be created by removing the area in the bottom wall 11 delimited by the oval perforation 22. In order to automatically separate the area delimited by the perforation 22 when the cover flap 14 is opened for the first time in the opposite direction of the arrow 17, a further double-sided adhesive label 18 ″ is located in the center of this area, the adhesive coatings of which on both sides achieve the same adhesive strength formed between the area of the bottom wall delimited by the perforation 22 and the cover flap 14, which leads to the said automatic tearing open of the removal opening 21. In order to support a controlled tearing open of the perforation 22, the perforation 22 points to the area facing away from the cover flap 14 on the bag Has a continuous slot 22 ', the length of which is approximately 1 to 2 cm. From the ends of the slot, when the cover flap 14 is pulled off for the first time, the tear-open process along the perforation 22 begins. The slot 22' also assists in venting the bag when filling W attepads 1, as the slot 22 'opens and the air can escape. The tamper-evident opening can only be torn open by the consumer.

Anhand der Fig. 3 und 4 ist das erfindungsgemäße Verfahren zur Herstellung des Folienschlauchbeutels zu erläutern.The method according to the invention for producing the tubular film bag is to be explained with reference to FIGS. 3 and 4.

Von einer (nicht dargestellten) Mutterrolle wird eine Folienbahn 23, die gegebenenfalls bereits bedruckt ist, kontinuierlich abgezogen (Fig. 3A). Dabei wird eine Perforation 22 an entsprechender Stelle zur Erzeugung einer aufreißbaren Entnahmeöffnung 21 eingebracht.A film web 23, which may already have been printed, is continuously drawn off from a parent roll (not shown) (FIG. 3A). In this case, a perforation 22 is introduced at a corresponding point in order to produce a tear-open opening 21.

Anschließend wird die Folienbahn 23 von einer Seite her umgeschlagen, um zwei übereinanderliegende Folienlagen 24, 25 zu bilden. Aufgrund des Umschlags von einer Seite her sind die beiden Folienlagen 24,25 randseitig durch eine in Abzugsrichtungrichtung A verlaufende Umschlagkante 26 verbunden (Fig. 3B). Ein Haftklebepunkt 18 aus einem drucksensitiven Klebstoff wird an entsprechender Stelle der oberen Folienlage 24 aufgesprüht. Anschließend wird diese Folienlagenanordnung von der Umschlagkante 26 her asymmetrisch eingeschlagen, wobei eine kurze, einwärts gerichtete Bodenwandfalte 27 und eine zwischen dieser und der unteren Folienlage 25 verlaufende, längere Laschenfalte 28 gebildet werden (Fig. 3C). Die Bodenwandfalte 27 weist eine parallel zur Abzugsrichtung A verlaufende, innere Faltkante 29 auf. Die obere Folienlage 24 ist durch die ebenfalls zur Abzugsrichtung A verlaufende Faltkante 30 begrenzt. Die Laschenfalte 28 weist eine randseitige Faltkante 31 auf und bildet die oben erwähnten Folienlagen 15,16 der Abdecklasche 14.The film web 23 is then turned over from one side in order to form two film layers 24, 25 lying one above the other. Due to the cover from one side, the two layers of film 24, 25 are through on the edges a cover edge 26 extending in the pull-off direction A is connected (FIG. 3B). A pressure-sensitive adhesive point 18 made of a pressure-sensitive adhesive is sprayed on at a corresponding point in the upper film layer 24. This foil layer arrangement is then folded in asymmetrically from the cover edge 26, a short, inwardly directed bottom wall fold 27 and a longer flap fold 28 running between this and the lower foil layer 25 being formed (FIG. 3C). The bottom wall fold 27 has an inner fold edge 29 running parallel to the pull-off direction A. The upper film layer 24 is delimited by the folding edge 30 which also extends to the pull-off direction A. The tab fold 28 has a fold edge 31 on the edge and forms the above-mentioned film layers 15, 16 of the cover tab 14.

Nachdem die Folienbahn 23 in die in Fig. 3C gezeigte Konfiguration gelegt worden ist, wird der in Fig. 4 in flachgelegtem Zustand gezeigte Folienschlauchbeutel aus der Folienlagenanordnung gemäß Fig. 3C durch ein geeignetes Trennschweißwerkzeug gebildet. Dieses Trennschweißwerkzeug trennschweißt die beiden Folienlagen 24,25 der Folienbahn 23 unter Bildung der geraden, quer zur Abzugsrichtung A verlaufenden Schweißnähte 3.4, die die beiden aus den Folienlagen 24,25 gebildeten Seitenwandteile 5,6 verbinden. Die Schweißnähte 3,4 verlaufen bis knapp über die Faltkante 30 zwischen der oberen Folienlage 24 und der Bodenwandfalte 27. Dabei wird die Bodenwandfalte 27 im Bereich der beiden Schweißnähte 3,4 mit erfaßt, wodurch die beiden Zwickel 12,13 gebildet werden. Am bodenseitigen Ende 32 der Schweißnähte 3,4 setzt sich das Trennschweißwerkzeug so fort, daß in Abzugsrichtung A verlaufende Trennschweiß-Nahtabschnitte 33,34 und ein diese verbindender, die Umrissform der Abdecklasche 14 definierender Schweißnahtabschnitt 35 gebildet werden.After the film web 23 has been placed in the configuration shown in FIG. 3C, the film tubular bag shown in the flat state in FIG. 4 is formed from the film layer arrangement according to FIG. 3C by a suitable separation welding tool. This separation welding tool separately welds the two film layers 24, 25 of the film web 23 to form the straight weld seams 3.4 which run transversely to the withdrawal direction A and which connect the two side wall parts 5, 6 formed from the film layers 24, 25. The weld seams 3, 4 extend to just above the fold edge 30 between the upper film layer 24 and the bottom wall fold 27. The bottom wall fold 27 is also included in the area of the two weld seams 3, 4, whereby the two gussets 12, 13 are formed. At the bottom end 32 of the weld seams 3, 4, the separating welding tool continues in such a way that separating welding seam sections 33, 34 extending in the withdrawal direction A and a welding seam section 35 connecting them and defining the outline shape of the cover flap 14 are formed.

Gleichzeitig mit dem Trennschweißvorgang mittels des nicht näher gezeigten Trennschweißwerkzeuges wird zwischen die beiden einander zugewandten Enden der Schweißnahtabschnitte 33,34 die Schweißnaht 19 gesetzt, die die beiden Folienlagen 15,16 der Abdecklasche 14 verbindet.Simultaneously with the separating welding process by means of the separating welding tool (not shown in more detail), the weld seam 19, which connects the two film layers 15, 16 of the cover flap 14, is placed between the two mutually facing ends of the weld seam sections 33, 34.

Die Trennschweiß-Nahtabschnitte 33, 34 und die Schweißnaht 19 liegen eine kurze Distanz seitlich neben der Faltkante 30, so daß das Schweißwerkzeug problemlos angreifen kann. Es ist jedoch darauf hinzuweisen, daß durch ein Hochführen der Faltkante 30 die Schweißnaht 19 und die beiden Schweißnahtabschnitte 33,34 auch fluchtend mit dieser Faltkante 30 angebracht werden können.The separating welding seam sections 33, 34 and the welding seam 19 lie a short distance laterally next to the folded edge 30, so that the welding tool can easily attack. However, it should be noted that by a Raising the folded edge 30, the weld seam 19 and the two weld seam sections 33, 34 can also be applied in alignment with this folded edge 30.

Claims (10)

  1. A flexible tubular bag for hygienic articles, in particular a pile of cotton pads (1), comprising a sidewall (2) which forms a cylindrical bag and a front wall (bottom wall 11) provided with an outlet (21), the walls (sidewall 2, bottom wall 11) being formed of a single foil web (23), characterized in that a covering flap (14) set on the sidewall (2) and/or the front wall (bottom wall 11) is provided for covering the outlet (21), the surface of which covering flap (14) may be detachably joined to the flexible tubular bag.
  2. A flexible tubular bag according to claim 1, characterized in that the covering flap (14) consists of two foil layers (15, 16), which are each set on the sidewall (sidewall member 6) and front wall (bottom wall 11), respectively, so as to form a single piece therewith.
  3. A flexible tubular bag according to claim 2, characterized in that the covering flap (14), where set on the sidewall (2) and front wall (bottom wall 11), respectively, is provided with a seam, in particular a weld (19), uniting the two foil layers (15, 16).
  4. A flexible tubular bag according to one of claims 1 to 3, characterized in that the width (b) of the covering flap (14) corresponds to approximately half the diameter (d) and its length (1) exceeds the diameter (d) of the flexible tubular bag.
  5. A flexible tubular bag according to one of claims 1 to 4, characterized in that the free end of the covering flap (14) is provided with a handling surface (stamped reinforcement 20).
  6. A flexible tubular bag according to one of claims 1 to 5, characterized in that the free end of the covering flap (14) may be detachably fixed, by means of an adhesive zone (18), on the portion of the sidewall (2) which is opposite to where the covering flap (14) is set on the bag.
  7. A method for producing a flexible tubular bag according to one of claims 1 to 6 from a continuously unwound foil web (23), characterized by the following steps:
    - doubling the foil web (23) for two foil layers (24, 25) to form, one lying on top of the other, which are united, on the side of the rim, by a doubled edge (26) extending in the direction of unwinding (A),
    - asymmetrically folding the foil layer arrangement from the doubled edge (26) of the two foil layers (24, 25), which results in the forming of a short front wall fold (bottom wall fold 27) directed inwardly and a prolonged flap fold (28) extending between the latter and the foil layer (25), and
    - welding and separating the foil layer arrangement, thus forming the sidewall (2) out of the two foil layers (24, 25), the front wall (bottom wall 11) out of the front wall fold (bottom wall fold 27), and the covering flap (14) out of the flap fold (28).
  8. A method according to claim 7, characterized in that together with, or after, the welding and separating, the foil layers (15, 16) of the flap fold (28) are united by a weld (19).
  9. A method according to claim 7 or 8, characterized in that prior to the doubling of the foil web (23), a perforation (22) is applied, providing for the outlet (21) in the foil web (23).
  10. A method according to one of claims 7 to 9, characterized in that an adhesive zone (18) is applied on one of the foil layers (24, 25) of the foil web (23).
EP94917643A 1993-05-27 1994-05-18 Flexible tubular bag for hygienic articles and process for producing the same Expired - Lifetime EP0699163B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4317611 1993-05-27
DE4317611A DE4317611A1 (en) 1993-05-27 1993-05-27 Foil tubular bag for holding hygiene articles and process for its manufacture
PCT/EP1994/001602 WO1994027889A1 (en) 1993-05-27 1994-05-18 Flexible tubular bag for hygienic articles and process for producing the same

Publications (2)

Publication Number Publication Date
EP0699163A1 EP0699163A1 (en) 1996-03-06
EP0699163B1 true EP0699163B1 (en) 1997-01-29

Family

ID=6489018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94917643A Expired - Lifetime EP0699163B1 (en) 1993-05-27 1994-05-18 Flexible tubular bag for hygienic articles and process for producing the same

Country Status (8)

Country Link
US (1) US5704714A (en)
EP (1) EP0699163B1 (en)
AT (1) ATE148420T1 (en)
DE (2) DE4317611A1 (en)
DK (1) DK0699163T3 (en)
ES (1) ES2097050T3 (en)
GR (1) GR3022526T3 (en)
WO (1) WO1994027889A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
US6811638B2 (en) 2000-12-29 2004-11-02 Kimberly-Clark Worldwide, Inc. Method for controlling retraction of composite materials
US7681756B2 (en) 2001-01-03 2010-03-23 Kimberly-Clark Worldwide, Inc. Stretchable composite sheet for adding softness and texture
US7879172B2 (en) 2001-10-09 2011-02-01 Kimberly-Clark Worldwide, Inc. Methods for producing internally-tufted laminates

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US6109787A (en) * 1995-10-13 2000-08-29 Procter & Gamble Soft bag for personal-hygiene articles
ATE188185T1 (en) * 1995-10-13 2000-01-15 Procter & Gamble SOFT BAGS FOR HYGIENE ITEMS
US6604651B2 (en) 2001-01-24 2003-08-12 Kimberly-Clark Worldwide, Inc. Storage and dispensing package for wipes
US20030100881A1 (en) * 2001-11-28 2003-05-29 Becton, Dickinson And Company Collapsible needle holder
US6840401B2 (en) * 2002-12-19 2005-01-11 Kimberly-Clark Worldwide, Inc. Multiple layer baffle structure for dispenser for wipes
DK176445B1 (en) * 2006-07-04 2008-02-25 Anne-Mette Ju Nygaard-Petersen Vatrondelholder
US20080152264A1 (en) * 2006-12-22 2008-06-26 Kenneth Charles Pokusa Flexible easy-open package with reclosable feature
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DE202013003039U1 (en) * 2013-03-28 2014-07-01 Bischof + Klein Gmbh & Co. Kg Pouch made of plastic film
ES2821895T3 (en) * 2015-01-15 2021-04-28 Kellog Co Single portion display bag

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6811638B2 (en) 2000-12-29 2004-11-02 Kimberly-Clark Worldwide, Inc. Method for controlling retraction of composite materials
US7681756B2 (en) 2001-01-03 2010-03-23 Kimberly-Clark Worldwide, Inc. Stretchable composite sheet for adding softness and texture
US7879172B2 (en) 2001-10-09 2011-02-01 Kimberly-Clark Worldwide, Inc. Methods for producing internally-tufted laminates

Also Published As

Publication number Publication date
EP0699163A1 (en) 1996-03-06
ES2097050T3 (en) 1997-03-16
DE59401728D1 (en) 1997-03-13
US5704714A (en) 1998-01-06
DK0699163T3 (en) 1997-08-18
WO1994027889A1 (en) 1994-12-08
GR3022526T3 (en) 1997-05-31
DE4317611A1 (en) 1995-01-05
ATE148420T1 (en) 1997-02-15

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