EP0189092A2 - Method for making bags of thermoplastic material - Google Patents

Method for making bags of thermoplastic material Download PDF

Info

Publication number
EP0189092A2
EP0189092A2 EP86100412A EP86100412A EP0189092A2 EP 0189092 A2 EP0189092 A2 EP 0189092A2 EP 86100412 A EP86100412 A EP 86100412A EP 86100412 A EP86100412 A EP 86100412A EP 0189092 A2 EP0189092 A2 EP 0189092A2
Authority
EP
European Patent Office
Prior art keywords
pieces
web
fabric
plastic
weld seams
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86100412A
Other languages
German (de)
French (fr)
Other versions
EP0189092A3 (en
EP0189092B1 (en
Inventor
Fritz Ing. Grad. Achelpohl
Hermann Oelrich
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to AT86100412T priority Critical patent/ATE58334T1/en
Publication of EP0189092A2 publication Critical patent/EP0189092A2/en
Publication of EP0189092A3 publication Critical patent/EP0189092A3/en
Application granted granted Critical
Publication of EP0189092B1 publication Critical patent/EP0189092B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B70/628—Applying glue on moving webs to form tubular webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/933—Pliable container having multilayer wall

Definitions

  • the invention relates to a method for producing sacks from thermoplastic, in which a tubular web is formed from a plastic film web by wrapping in the side parts and gluing their overlapping edge regions by a longitudinal seam, and hose sections are separated from this tubular web, which are welded with bottom weld seams and after Filling with head welding seams.
  • the sack hose pieces can be provided with gussets before the transverse bottom weld seams are attached. If the sacks are made of plastic films, there is a risk of their damage during loading, transporting and storage, because the plastic films forming the sack walls are very susceptible to tearing and the sacks are usually subjected to rough treatment. Damage caused when the sacks are turned over can result in filling losses of up to 50%.
  • Sacks are also known which consist of tubular pieces made of a fabric made of stretched plastic tapes. Such bags have a high strength, so that they are not damaged even with rough treatment and in the case of impacts with pointed objects. Sacks made from plastic tapes have the disadvantage that they are difficult to weld, so that the manufacture of the top and bottom seams presents considerable difficulties.
  • the object of the invention is therefore to propose a method of the type mentioned at the outset by which high-strength sacks can be produced which can be provided in a simple manner with bottom and top weld seams.
  • this object is achieved in that web pieces made of a fabric made of stretched plastic tapes, which are shorter than the distance between the later bottom and head weld seams on the flat-lying sacks, are introduced with a mutual distance between two converging plastic film webs, the area of the later bottom - and head welding seams bridged that the webs and the fabric web pieces are laterally offset and the exposed edge strips of the webs and fabric web pieces are provided with hot-melt adhesive layers, so that during subsequent hose formation they stick with their opposite edge strips that overlap the hot-melt adhesive layers, and that from the The tube pieces are cut off approximately in the middle between the fabric sheet pieces and these are provided with the transverse bottom weld seams which only capture the plastic tube sheet pieces.
  • the sacks produced by the method according to the invention thus have three-layer walls which are formed by the plastic webs lying on the inside and outside, which enclose the reinforcing fabric web pieces between them.
  • the composite forming the sack walls film has a high level of tightness and, moreover, also a high level of strength because the fabric web pieces are largely insensitive to injuries and are not susceptible to tears. Since the fabric web pieces lie outside the bottom and head weld seams, these can be easily attached D.
  • the main loads on the bags arise in the area of the side walls, which are reinforced by the fabric sheet pieces, so that there is no significant weakening in that the fabric sheet pieces each end in front of the bottom and head cross-weld nibs that only pass through the sheet pieces.
  • the bags produced by the process according to the invention withstand high loads after they have been filled and after the head welds have been made. They will not be damaged even if they are handled several times during transport and storage. These sacks are not only insensitive to tears, but also to stitches, because the ribbon fabric inserts endeavor to contract again after the penetration of pointed objects.
  • one of these is provided with a plurality of strips of hot-melt adhesive lying next to one another in parallel at a distance.
  • the tape fabric inserts are connected to the relevant film web by means of these hot-melt adhesive strips.
  • the hot-melt adhesive layers glue the foils surrounding the fabric sheet pieces together, so that these, too, are fixed sufficiently firmly to one another.
  • the length of the fabric web pieces corresponds to the height of the side walls of the filled bags.
  • This configuration is particularly useful for large bags with a capacity of 1 to 2 tons, since these are the fabric web pieces as it were, form the stiffening of the side walls.
  • the bottom and top surfaces provided with the transverse weld seams form stand surfaces with less load in such bags.
  • the double-layer tubular web with the fabric web pieces produced by the method according to the invention can be wound up into transport rolls, from which the individual bag hose pieces are separated prior to filling.
  • flexible material strips for example made of plastic film, can be placed on the edge areas of the tubular web before winding up, which compensate for the height of the seams formed by the overlaps.
  • the webs 3 and 4 are continuously drawn off from the film rolls 1 and 2. Between these two webs 3 and 4, tissue pieces 5 are introduced at a distance from one another, which are cut off in cycles from a web 7 drawn off from a roll 6. 2 shows, the individual layers 3, 4 and 5 are offset from one another. Continuous strips 9 of a hot-melt adhesive are applied via a glue application unit 8, through which, on the one hand, the fabric pieces 5 do not lie against one another, are likewise connected to one another. The tube which can be seen in cross section in FIG. 3 is then formed from the three-layer flat web shown in FIG. 2 via a folding device 10. The glue strips 11 required for connection (FIG. 3) are applied by the hot melt application unit 12.
  • the hose 13 is then advanced further by the preferred rollers 14 and, if necessary, divided into individual hose sections by a cutting device 15 or wound up into a roll 16 after the cutting device 15 has been shut down.
  • a switch 17 is provided behind the cutting device 15 and is constructed in a known manner.
  • Pieces of hose according to FIG. 4 are then separated from a hose provided with side gussets, the longitudinal seam not being shown in FIG. 4.
  • FIGS. 5 and 6 show that the middle layer 5 is shorter than the other two layers 3 and 4. If only one end of a hose section is shown here, the layer 5 is also set back at the other end compared to the other layers 3 and 4 .
  • the dimension for this offset is designated by X.
  • a sack formed from such a piece of hose is shown in FIGS. 5 and 6. It can be seen in particular from FIG. 6 that the inner layer 5 made of fabric material is not covered by the welds 18 and 19.
  • the inner layer 5 is, as already indicated in FIG. 4, both ends by that dimension X shorter than the outer fabric layers 4.
  • a sack designed in this way can be welded very well on the one hand and withstands mechanical stresses exceptionally well on the other.
  • Such bags have a capacity of about 25 to 50 kilos. Artificial fertilizers are packaged in them, for example.
  • FIG. 7 shows a large sack with a capacity of 1 to 2 tons.
  • the fabric material 5 only extends over the filling height 20, whereas the material required for the bottom formation as well as the material required for closing the large sack is only formed from two webs 3 and 4 lying one on top of the other.
  • the distance Y denoted in FIG. 2 between two pieces of fabric 5 must therefore be so large during the production of the sack material that the two film webs 3 and 4 protrude a piece of fabric 5 on both ends to such an extent that there is sufficient material for the bottom formation (in FIG. 7) the bottom is already formed) and there is enough material left to add the filled large bag.

Landscapes

  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Bei einem Verfahren zum Herstellen von Säcken aus thermoplastischem Kunststoff wird aus einer Kunststoffbahn durch Einschlagen der Seitenteile und durch Verkleben von deren einander überlappenden Randbereichen durch eine Längsnaht eine Schlauchbahn gebildet. Von dieser Schlauchbahn werden Schlauchstücke abgetrennt, die mit Bodenschweissnähten und nach dem Befüllen mit Kopfschweissnähten versehen werden. Um hochfeste Säcke herstellen zu können, die sich in einfacher Weise mit Boden- und Kopfschweissnähten versehen lassen, werden zwischen zwei zusammenlaufende Kunststoffolienbahnen Bahnstücke aus einem Gewebe aus gereckten Kunststoffbändchen, die kürzer sind als der Abstand der späteren Boden-und Kopfschweissnähte an den flachliegenden Säcken, mit einem gegenseitigen Abstand eingeführt, der den Bereich der späteren Boden- und Kopfschweissnähte überbrückt. Die Bahnen und die Gewebebahnstücke werden seitlich versetzt zusammengeführt und die frei liegenden Randstreifen der Bahnen und Gewebebahnstücke werden mit Heissschmelzklebstoffaufträgen versehen, so dass sie bei der Schlauchbildung mit ihren jeweils gegenüberliegenden, die Heissschmelzklebstoffaufträge überlappenden Randstreifen verkleben. Von der Schlauchbahn werden etwa mittig zwischen den Gewebebahnstücken die Schlauchstücke abgetrennt und diese mit den nur die Kunststoffschlauchbahnstücke erfassenden querverlaufenden Bodenschweissnähten versehen.In a method for producing sacks from thermoplastic plastic, a tubular web is formed from a plastic web by turning in the side parts and by gluing their overlapping edge regions through a longitudinal seam. Pieces of hose are cut off from this tube track, which are provided with bottom weld seams and, after filling, with head weld seams. In order to be able to produce high-strength sacks that can easily be provided with bottom and head weld seams, web pieces made of a fabric made of stretched plastic tapes, which are shorter than the distance between the later bottom and head weld seams on the flat-lying sacks, are placed between two converging plastic film webs. inserted at a mutual distance that bridges the area of the later bottom and head welds. The webs and the fabric web pieces are brought together in a laterally offset manner and the exposed edge strips of the webs and fabric web pieces are provided with hot-melt adhesive layers so that they stick to the opposite edge strips overlapping the hot-melt adhesive layers during tube formation. The tube pieces are separated from the tube sheet approximately in the middle between the fabric sheet pieces and these are provided with the transverse bottom weld seams which only capture the plastic tube sheet pieces.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen von Säcken aus thermoplastischem Kunststoff, bei dem aus einer Kunststofffolienbahn durch Einschlagen der Seitenteile und Verkleben von deren einander überlappenden Randbereichen durch eine Längsnaht eine Schlauchbahn gebildet wird und von dieser Schlauchbahn Schlauchstücke abgetrennt werden, die mit Bodenschweißnähten und nach dem Befüllen mit Kopfschweißnähten versehen werden.The invention relates to a method for producing sacks from thermoplastic, in which a tubular web is formed from a plastic film web by wrapping in the side parts and gluing their overlapping edge regions by a longitudinal seam, and hose sections are separated from this tubular web, which are welded with bottom weld seams and after Filling with head welding seams.

Die Sackschlauchstücke können vor dem Anbringen der quer verlaufenden Bodenschweißnähte mit Seitenfalten versehen sein. Bestehen die Säcke aus Kunststoffolien, so ist während des Verladens, Transportierens und Lagerns die Gefahr von deren Beschädigung gegeben, weil die die Sackwandungen bildenden Kunststoffolien sehr rißempfindlich sind und die Säcke üblicherweise einer rauhen Behandlung ausgesetzt sind. Durch beim Umschlagen der Säcke entstehende Beschädigungen können Füllverluste bis zu 50% auftreten.The sack hose pieces can be provided with gussets before the transverse bottom weld seams are attached. If the sacks are made of plastic films, there is a risk of their damage during loading, transporting and storage, because the plastic films forming the sack walls are very susceptible to tearing and the sacks are usually subjected to rough treatment. Damage caused when the sacks are turned over can result in filling losses of up to 50%.

Weiterhin sind Säcke bekannt, die aus Schlauchstücken aus einem Gewebe aus gereckten Kunststoffbändchen bestehen. Derartige Säcke weisen eine hohe Festigkeit auf, so daß sie auch bei einer rauhen Behandlung und bei Stößen mit spitzen Gegenständen nicht beschädigt werden. Aus Kunststoffbändchengeweben hergestellte Säcke weisen aber den Nachteil auf, daß sie sich schlecht verschweißen lassen, so daß die Herstellung der Kopf- und Bodennähte erhebliche Schwierigkeiten bereitet.Sacks are also known which consist of tubular pieces made of a fabric made of stretched plastic tapes. Such bags have a high strength, so that they are not damaged even with rough treatment and in the case of impacts with pointed objects. Sacks made from plastic tapes have the disadvantage that they are difficult to weld, so that the manufacture of the top and bottom seams presents considerable difficulties.

Aufgabe der Erfindung ist es daher, ein Verfahren der eingangs angegebenen Art vorzuschlagen, nach dem sich hochfeste Säcke herstellen lassen, die sich in einfacher Weise mit Boden- und Kopfschweißnähten versehen lassen.The object of the invention is therefore to propose a method of the type mentioned at the outset by which high-strength sacks can be produced which can be provided in a simple manner with bottom and top weld seams.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß zwischen zwei zusammenlaufende Kunststoffolienbahnen Bahnstücke aus einem Gewebe aus gereckten Kunststoffbändchen, die kürzer sind als der Abstand der späteren Boden- und Kopfschweißnähte an den flachliegenden Säcken, mit einem gegenseitigen Abstand eingeführt werden, der den Bereich der späteren Boden- und Kopfschweißnähte überbrückt, daß die Bahnen und die Gewebebahnstücke seitlich versetzt zusammengeführt und die frei liegenden Randstreifen der Bahnen und Gewebebahnstücke mit Heißklebstoffaufträgen versehen werden, so daß sie bei der späteren Schlauchbildung mit ihren jeweils gegenüberliegenden, die Heißklebstoffaufträge überlappenden Randstreifen verkleben, und daß von der Schlauchbahn etwa mittig zwischen den Gewebebahnstücken die Schlauchstücke abgetrennt und diese mit den nur die Kunststoffschlauchbahnstücke erfassenden querverlaufenden Bodenschweißnähten versehen werden. Die nach dem erfindungsgemäßen Verfahren hergestellten Säcke weisen somit dreilagige Wandungen auf, die durch die außen und innen liegenden Kunststoffbahnen gebildet sind, die zwischen sich die verstärkenden Gewebebahnstücke einfassen. Die die Sackwandungen bildende Verbundfolie weist eine hohe Dichtigkeit und darüber hinaus auch eine hohe Festigkeit auf, weil die Gewebebahnstücke weitgehend unempfindlich gegen Verletzungen und rißunempfindlich sind. Da die Gewebebahnstücke außerhalb der Boden- und Kopfschweißnähte liegen, lassen sich diese problemlos anbringeD.According to the invention, this object is achieved in that web pieces made of a fabric made of stretched plastic tapes, which are shorter than the distance between the later bottom and head weld seams on the flat-lying sacks, are introduced with a mutual distance between two converging plastic film webs, the area of the later bottom - and head welding seams bridged that the webs and the fabric web pieces are laterally offset and the exposed edge strips of the webs and fabric web pieces are provided with hot-melt adhesive layers, so that during subsequent hose formation they stick with their opposite edge strips that overlap the hot-melt adhesive layers, and that from the The tube pieces are cut off approximately in the middle between the fabric sheet pieces and these are provided with the transverse bottom weld seams which only capture the plastic tube sheet pieces. The sacks produced by the method according to the invention thus have three-layer walls which are formed by the plastic webs lying on the inside and outside, which enclose the reinforcing fabric web pieces between them. The composite forming the sack walls film has a high level of tightness and, moreover, also a high level of strength because the fabric web pieces are largely insensitive to injuries and are not susceptible to tears. Since the fabric web pieces lie outside the bottom and head weld seams, these can be easily attached D.

Die Hauptbelastungen der Säcke entstehen im Bereich der Seitenwandungen, die durch die Gewebebahnstücke verstärkt sind, so daß eine nennenswerte Schwächung dadurch nicht eintritt, daß die Gewebebahnstücke jeweils vor den nur durch die Folienbahnstücke hindurchgeführten Boden- und Kopfquerschweißnäb.ten enden.The main loads on the bags arise in the area of the side walls, which are reinforced by the fabric sheet pieces, so that there is no significant weakening in that the fabric sheet pieces each end in front of the bottom and head cross-weld nibs that only pass through the sheet pieces.

Die nach dem erfindungsgemäßen Verfahren hergestellten Säcke halten nach ihrer Befüllung und nach dem Anbringen der Kopfschweißnähte hohen Belastungen stand. Sie werden auch bei einem mehrfachen Umschlagen während des Transports und Lagerns nicht beschädigt. Diese Säcke sind nicht nur unempfindlich gegen Risse, sondern auch gegen Stiche, weil die Bändchengewebeeinlagen das Bestreben haben, sich nach dem Eindringen von spitzen Gegenständen wieder zusammenzuziehen.The bags produced by the process according to the invention withstand high loads after they have been filled and after the head welds have been made. They will not be damaged even if they are handled several times during transport and storage. These sacks are not only insensitive to tears, but also to stitches, because the ribbon fabric inserts endeavor to contract again after the penetration of pointed objects.

Zweckmäßigerweise wird vor dem Zusammenlaufen der Kunststofffolienbahnen eine von diesen mit mehreren in Abstand parallel nebeneinanderliegenden Streifen aus Heißklebstoff versehen.Advantageously, before the plastic film webs converge, one of these is provided with a plurality of strips of hot-melt adhesive lying next to one another in parallel at a distance.

Durch diese Heißklebstoffstreifen werden die Bändchengewebeeinlagen mit der betreffenden Folienbahn verbunden. In den Bereichen zwischen den einzelnen Gewebebahnstücken verkleben die Heißklebstoffäufträge die die Gewebebahnstücke einfassenden Folien miteinander, so daß auch diese ausreichend fest aneinander fixiert sind.The tape fabric inserts are connected to the relevant film web by means of these hot-melt adhesive strips. In the areas between the individual pieces of fabric web, the hot-melt adhesive layers glue the foils surrounding the fabric sheet pieces together, so that these, too, are fixed sufficiently firmly to one another.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Länge der Gewebebahnstücke der Höhe der Seitenwände der gefüllten Säcke entspricht. Diese Ausgestaltung ist insbesondere bei Großsäcken mit einem Fassungsvermögen von 1 bis 2 Tonnen zweckmäßig, da bei diesen die Gewebebahnstücke gleichsam die Seitenwandungen aussteifende Bauchbinden bilden. Die mit den Querschweißnähten versehenen Boden-und Kopfflächen bilden bei derartigen Säcken geringer belastete Standflächen.In a further embodiment of the invention it is provided that the length of the fabric web pieces corresponds to the height of the side walls of the filled bags. This configuration is particularly useful for large bags with a capacity of 1 to 2 tons, since these are the fabric web pieces as it were, form the stiffening of the side walls. The bottom and top surfaces provided with the transverse weld seams form stand surfaces with less load in such bags.

Die nach dem erfindungsgemäßen Verfahren hergestellte doppellagige Schlauchbahn mit den Gewebebahnstücken kann zu Transportrollen aufgewickelt werden, von der vor dem Befüllen die einzelnen Sackschlauchstücke abgetrennt werden. Um im wesentlichen zylindrische Wickel zu - erhalten, können auf die Randbereiche der Schlauchbahn vor dem Aufwickeln flexible: Materialstreifen, beispielsweise aus Kunststoffolie, aufgelegt werden, die die Höhe der durch die Überlappungen gebildeten Nähte ausgleichen.The double-layer tubular web with the fabric web pieces produced by the method according to the invention can be wound up into transport rolls, from which the individual bag hose pieces are separated prior to filling. In order to obtain essentially cylindrical windings, flexible material strips, for example made of plastic film, can be placed on the edge areas of the tubular web before winding up, which compensate for the height of the seams formed by the overlaps.

In die doppellagige mit den Gewebebahnstücken versehene Schlauchbahn können auch zur Herstellung von Seitenfaltensäcken Seitenfalten eingelegt werden. Da die Seitenfalten die Höhe der Längsnähte und Überlappungen ausgleichen, läßt sich eine mit Seitenfalten versehene Schlauchbahn ohne mitgewickelte Streifen zu zylindrischen Rollen aufwickeln.Side gussets can also be inserted into the double-layered tube sheet provided with the fabric web pieces for the production of gusseted bags. Since the gussets compensate for the height of the longitudinal seams and overlaps, a tubular web with gussets can be wound up into cylindrical rolls without any coiled strips.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 die Herstellung eines dreischichtigen Lagenmaterials,
  • Fig. 2 eine Draufsicht in Richtung des Pfeiles II der Fig. 1,
  • Fig. 3 einen Schnitt durch die Bahn gemäß der Linie III-III der Fig. 1,
  • Fig. 4 perspektivisch einen aus dem erfindungsgemässen Dreilagenmaterial hergestellten Schlauchabschnitt,
  • Fig. 5 einen gefüllten Sack,
  • Fig. 6 den in Fig. 5 dargestellten Sack gemäß der Linie VI-VI im Schnitt und
  • Fig. 7 einen befüllten Großsack in perspektivischer Darstellung, der noch nicht geschlossen ist.
An embodiment of the invention is explained below with reference to the drawing. In this shows
  • 1 shows the production of a three-layer material,
  • 2 is a plan view in the direction of arrow II of FIG. 1,
  • 3 shows a section through the web along the line III-III of FIG. 1,
  • 4 is a perspective view of a hose section made from the three-layer material according to the invention,
  • 5 a filled sack,
  • Fig. 6 shows the sack shown in Fig. 5 along the line VI-VI in section and
  • Fig. 7 shows a filled large bag in perspective, which is not yet closed.

Von den Folienrollen 1 und 2 werden kontinuierlich die Bahnen 3 und 4 abgezogen. Zwischen diese beiden Bahnen 3 und 4 werden mit Abstand zueinander Gewebestücke 5 eingeführt, die von einer von einer Rolle 6 abgezogenen Bahn 7 taktweise abgeschnitten werden. Wie die Fig. 2 zeigt, sind die einzelnen Lagen 3, 4 und 5 gegeneinander versetzt. Über ein Leimauftragsaggregat 8 werden durchgehende Streifen 9 eines Heißschmelzklebers aufgebracht, durch die zum einen die Gewebestücke 5 nicht aneinanderliegen, miteinander ebenfalls verbunden. Aus der in Figur 2 dargestellten dreilagigen Flachbahn wird dann über eine Falteinrichtung 10 der in Figur 3 im Querschnitt zu erkennende Schlauch gebildet. Die zum Verbinden erforderlichen Leimstreifen 11 (Fig. 3) werden durch das Heißschmelzauftragsaggregat 12 aufgebracht. Der Schlauch 13 wird dann durch die Vorzugsrollen 14 weiter vorgezogen und bedarfsweise durch eine Schneideeinrichtung 15 in einzelne Schlauchstücke unterteilt oder aber nach Außerbetriebsetzen der Schneideinrichtung 15 zu einer Rolle 16 aufgewickelt. Zu diesem Zweck ist hinter der Schneideinrichtung 15 eine Weiche 17 vorgesehen, die in bekannter Weise aufgebaut ist. Je nach Verwendungszweck kann es erforderlich sein, hinter den Vorzugsrollen 14 und vor der Weiche 17 eine Seitenfaltenvorrichtung vorzusehen, so daß der Schlauch dann einen Querschnitt aufweist, der aus Fig. 4 ersichtlich ist. Aus einem mit Seitenfalten versehenen Schlauch werden dann Schlauchstücke gemäß Fig. 4 abgetrennt, wobei die Längsnaht in Fig. 4 nicht dargestellt ist.The webs 3 and 4 are continuously drawn off from the film rolls 1 and 2. Between these two webs 3 and 4, tissue pieces 5 are introduced at a distance from one another, which are cut off in cycles from a web 7 drawn off from a roll 6. 2 shows, the individual layers 3, 4 and 5 are offset from one another. Continuous strips 9 of a hot-melt adhesive are applied via a glue application unit 8, through which, on the one hand, the fabric pieces 5 do not lie against one another, are likewise connected to one another. The tube which can be seen in cross section in FIG. 3 is then formed from the three-layer flat web shown in FIG. 2 via a folding device 10. The glue strips 11 required for connection (FIG. 3) are applied by the hot melt application unit 12. The hose 13 is then advanced further by the preferred rollers 14 and, if necessary, divided into individual hose sections by a cutting device 15 or wound up into a roll 16 after the cutting device 15 has been shut down. For this purpose, a switch 17 is provided behind the cutting device 15 and is constructed in a known manner. Depending on the intended use, it may be necessary to provide a gusset device behind the preferred rollers 14 and in front of the switch 17, so that the hose then has a cross section which can be seen in FIG. 4. Pieces of hose according to FIG. 4 are then separated from a hose provided with side gussets, the longitudinal seam not being shown in FIG. 4.

Diese Figur 4 zeigt, daß die mittlere Lage 5 kürzer ist als die beiden anderen Lagen 3 und 4. Wenn auch hier nur das eine Ende eines Schlauchabschnittes dargestellt ist, so ist auch am anderen Ende die Lage 5 gegenüber den übrigen Lagen 3 und 4 zurückgesetzt. Das Maß für diesen Versatz ist mit X bezeichnet. Ein aus einem solchen Schlauchstück gebildeter Sack ist in den Fig. 5 und 6 dargestellt. Insbesondere aus der Fig. 6 ist dabei zu erkennen, daß die innere Lage 5 aus Gewebematerial nicht von den Schweißungen 18 und 19 erfaßt ist. Die innere Lage 5 ist nämlich, wie schon in Fig. 4 gekennzeichnet, beidendig um daß Maß X kürzer als die äußeren Gewebelagen 4. Ein so ausgebildeter Sack läßt sich zum einen sehr gut verschweißen und hält zum anderen mechanischen Beanspruchungen außerordentlich gut stand. Derartige Säcke haben ein Fassungsvermögen von etwa 25 bis 50 Kilo. In ihnen wird beispielsweise Kunstdünger verpackt.This Figure 4 shows that the middle layer 5 is shorter than the other two layers 3 and 4. If only one end of a hose section is shown here, the layer 5 is also set back at the other end compared to the other layers 3 and 4 . The dimension for this offset is designated by X. A sack formed from such a piece of hose is shown in FIGS. 5 and 6. It can be seen in particular from FIG. 6 that the inner layer 5 made of fabric material is not covered by the welds 18 and 19. The inner layer 5 is, as already indicated in FIG. 4, both ends by that dimension X shorter than the outer fabric layers 4. A sack designed in this way can be welded very well on the one hand and withstands mechanical stresses exceptionally well on the other. Such bags have a capacity of about 25 to 50 kilos. Artificial fertilizers are packaged in them, for example.

Die Fig. 7 zeigt im Gegensatz zu Fig. 5 einen Großsack mit einem Fassungsvermögen von 1 bis 2 Tonnen. Bei diesem Sack erstreckt sich das Gewebematerial 5 lediglich über die Einfüllhöhe 20, wohingegen das für die Bodenbildung erforderliche Material ebenso wie das zum Schließen des Großsackes benötigte Material lediglich aus zwei aufeinanderliegenden Bahnen 3 und 4 gebildet ist. Der in Fig. 2 mit Y bezeichnete Abstand zweier Gewebestücke 5 zueinander muß bei der Herstellung des Sackmaterials folglich so groß sein, daß die beiden Folienbahnen 3 und 4 ein Gewebsstück 5 beidendig soweit überragen, daß genügend Material für die Bodenbildung (in Fig. 7 ist der Boden bereits gebildet) und genügend Material zum Zulegen des gefüllten Großsackes verbleibt.In contrast to FIG. 5, FIG. 7 shows a large sack with a capacity of 1 to 2 tons. In this sack, the fabric material 5 only extends over the filling height 20, whereas the material required for the bottom formation as well as the material required for closing the large sack is only formed from two webs 3 and 4 lying one on top of the other. The distance Y denoted in FIG. 2 between two pieces of fabric 5 must therefore be so large during the production of the sack material that the two film webs 3 and 4 protrude a piece of fabric 5 on both ends to such an extent that there is sufficient material for the bottom formation (in FIG. 7) the bottom is already formed) and there is enough material left to add the filled large bag.

Claims (6)

1. Verfahren zum Herstellen von Säcken aus thermoplastischem Kunststoff, bei dem aus einer Kunststoffbahn durch Einschlagen der Seitenteile und durch Verkleben von deren einander überlappenden Randbereichen durch eine Längsnaht eine Schlauchbahn gebildet wird und von dieser Schlauchbahn Schlauchstücke abgetrennt werden, die mit--Bodenschweißnähten und nach dem Befüllen mit Kopf Schweißnähten versehen werden, dadurch gekennzeichnet, daß zwischen zwei zusammenlaufende Kunststoffolienbahnen Bahnstücke aus einem Gewebe aus gereckten Kunststoffbändchen, die kürzer sind als der Abstand der späteren Boden- und Kopfschweißnähte an den flachliegenden Säcken, mit einem gegenseitigen Abstand eingeführt werden, der den Bereich der späteren Boden-und Kopfschweißnähte überbrückt, daß die Bahnen und die Gewebebahnstücke seitlich versetzt zusammengeführt und die frei liegenden Randstreifen der Bahnen und Gewebebahnstücke mit Heißschmelzklebstoffaufträgen versehen werden, so daß sie bei der Schlauchbildung mit ihren jeweils gegenüberliegenden, die Heißschmelzklebstoffaufträge überlappenden Randstreifen verkleben, und daß von der Schlauchbahn etwa mittig zwischen den Gewebebahnstücken die Schlauchstücke abgetrennt und diese mit den nur die Kunststoffschlauchbahnstücke erfassenden quer verlaufenden Bodenschweißnähten versehen werden.1. A method for producing sacks from thermoplastic, in which a tubular web is formed from a plastic web by turning in the side parts and by gluing their overlapping edge regions by means of a longitudinal seam, and tubular pieces are separated from this web which are welded with - bottom welded seams and after the filling with head weld seams, characterized in that between two converging plastic sheeting web pieces made of a fabric made of stretched plastic tapes, which are shorter than the distance between the subsequent bottom and head weld seams on the flat-lying bags, are introduced with a mutual distance that the Area of the later bottom and head welds bridged that the webs and the fabric web pieces are laterally offset and the exposed edge strips of the webs and fabric web pieces are provided with hot-melt adhesive so that they are at the hose bil glue with their opposite, the hot melt adhesive overlap edge strips, and that the hose pieces are separated from the tube sheet approximately in the middle between the fabric sheet pieces and these are provided with only the plastic tube sheet pieces captive transverse floor welds. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß vor dem Zusammenlaufen der Kunststoffbahnen eine von diesen mit mehreren im Abstand parallel zueinader liegenden Streifen aus Heißschmelzklebstoffaufträgen versehen wird.2. The method according to claim 1, characterized in that before the convergence of the plastic webs, one of these is provided with a plurality of strips of hot-melt adhesive applications lying parallel and at a distance from one another. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Länge der Gewebebahnstücke der Höhe der Seitenwände der gefüllten Säcke entspricht.3. The method according to claim 1 or 2, characterized in that the length of the fabric web pieces corresponds to the height of the side walls of the filled bags. 4. Verfahren nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, daß die doppellagige, die Gewebebahnstücke einfassende Schlauchbahn zu einer Transportrolle aufgewickelt wird.4. The method according to any one of claims 1-3, characterized in that the double-layered, the fabric web pieces enclosing tubular web is wound up to a transport roll. 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß auf die Randbereiche der Schlauchbahn vor dem Aufwickeln flexible Materialstreifen gelegt werden, die die Höhe der durch die Überlappungen und die Heißschmelzklebstoffaufträge gebildete Nähe ausgleichen.5. The method according to claim 4, characterized in that flexible material strips are placed on the edge regions of the tubular web before winding, which compensate for the height of the proximity formed by the overlaps and the hot melt adhesive orders. 6. Verfahren nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß in die doppellagige, die Gewebebahnstücke einfassende Schlauchbahn Seitenfalten eingelegt werden.6. The method according to any one of claims 1-4, characterized in that side gussets are inserted into the double-layered tube sheet enclosing the fabric sheet pieces.
EP86100412A 1985-01-23 1986-01-14 Method for making bags of thermoplastic material Expired - Lifetime EP0189092B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100412T ATE58334T1 (en) 1985-01-23 1986-01-14 PROCESS FOR MAKING BAGS FROM THERMOPLASTIC PLASTIC.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853502151 DE3502151A1 (en) 1985-01-23 1985-01-23 METHOD FOR PRODUCING BAGS FROM THERMOPLATIC PLASTIC
DE3502151 1985-01-23

Publications (3)

Publication Number Publication Date
EP0189092A2 true EP0189092A2 (en) 1986-07-30
EP0189092A3 EP0189092A3 (en) 1989-01-04
EP0189092B1 EP0189092B1 (en) 1990-11-14

Family

ID=6260547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100412A Expired - Lifetime EP0189092B1 (en) 1985-01-23 1986-01-14 Method for making bags of thermoplastic material

Country Status (5)

Country Link
US (1) US4726169A (en)
EP (1) EP0189092B1 (en)
AT (1) ATE58334T1 (en)
CA (1) CA1264974A (en)
DE (1) DE3502151A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838982A (en) * 1987-06-26 1989-06-13 H.G. Weber & Co., Inc. Patch applicator vacuum cylinder for web material
US5001888A (en) * 1990-01-16 1991-03-26 Seagate Technology, Inc. Method of packaging and dispensing a mechanical part
DE19827987B4 (en) * 1998-06-24 2004-12-23 Lemo Maschinenbau Gmbh Funnel bags, in particular potted plant funnels made of thermoplastic plastic film, and method and device for producing such a funnel bag
US5993368A (en) * 1998-09-09 1999-11-30 Ohio Valley Bag And Burlap Company Apparatus for manufacturing shipping pouches
EP1122192A1 (en) * 2000-02-02 2001-08-08 Tils, Peter Tubular film
ITBO20000483A1 (en) * 2000-08-03 2002-02-03 Guglielmo Martelli PROCEDURE FOR THE IMPLEMENTATION OF A FUND FOR THE PACKAGING OF FOOD PRODUCTS AND DEVICE FOR THE IMPLEMENTATION OF THIS PROCED
KR100448313B1 (en) * 2001-08-23 2004-09-10 이미숙 Method for Tubular sack coating
US7115086B1 (en) * 2004-08-20 2006-10-03 Automated Solutions, Llc Queue-based bag forming system and method
KR100702624B1 (en) 2005-07-18 2007-04-03 (주)금풍 Zones and Zones
DE202006020404U1 (en) * 2006-01-26 2008-07-31 Mondi Ag Multi-ply bag made of paper
US9669981B2 (en) 2012-02-13 2017-06-06 Polytex Fibers Corporation Easy open plastic bags
US11459157B2 (en) 2012-02-13 2022-10-04 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage and infestations
US9969529B2 (en) 2012-02-13 2018-05-15 Polytex Fibers Corporation Easy open plastic bags
US12234076B2 (en) 2012-02-13 2025-02-25 Polytex Fibers Llc Peelable easy open plastic bags
US9845184B2 (en) * 2012-02-13 2017-12-19 Polytex Fibers Corporation Easy open plastic bags
US11305927B2 (en) 2014-04-04 2022-04-19 Polytex Fibers Llc Easy open plastic bags
US12589932B2 (en) 2014-04-04 2026-03-31 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage and infestations
JPWO2016088527A1 (en) * 2014-12-02 2017-09-07 株式会社日清製粉グループ本社 Horizontal pillow packaging machine and horizontal pillow packaging method
CN107685479B (en) * 2017-09-14 2019-06-21 广德美好包装科技有限公司 A printing equipment for food packaging bags
US11345109B2 (en) * 2020-01-17 2022-05-31 Simple Container Solutions, Inc. Method for producing a recyclable bag
US12391018B2 (en) * 2020-04-10 2025-08-19 Rst Automation Llc Systems and methods for packaging instruments or other items with bag making features
CN116147544B (en) * 2023-04-03 2023-09-29 广东汇发塑业科技有限公司 A device for detecting surface flatness of plastic film

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746623A (en) * 1927-12-12 1930-02-11 Arkell & Smiths Method of and machine for use in the manufacture of bags
US2257823A (en) * 1940-01-15 1941-10-07 Stokes & Smith Co Method and apparatus for producing containers
US2374128A (en) * 1943-09-27 1945-04-17 Bemis Bro Bag Co Method of making a bag material and the product thereof
DE1018714B (en) * 1953-11-27 1957-10-31 Behn Verpackung Erwin Device for inserting paper sections u. Between the paper webs which are used for the production of paper bags and which are to be removed after being joined to form a layer of paper, and multi-layer paper sacks made on this device
US3391615A (en) * 1965-05-11 1968-07-09 Albemarle Paper Co Process and apparatus for the manufacture of a multi-ply bag
DE1964142A1 (en) * 1968-12-20 1970-07-23 Showa Denko Kk Heavy duty plastic sack
US3896991A (en) * 1973-02-28 1975-07-29 Edward C Kozlowski Composite flexible, semi-rigid materials and process for making same
US4014252A (en) * 1975-09-02 1977-03-29 Show Seitai Kogyo Kaisha Ltd. Method of manufacturing bags
DE7529294U (en) * 1975-09-16 1976-01-29 Windmoeller & Hoelscher Multi-layer bag tube
DE2707584A1 (en) * 1977-02-22 1978-08-24 Windmoeller & Hoelscher REINFORCED FILM
FR2394390A1 (en) * 1977-06-16 1979-01-12 Peckre Freres Et Turpin Ets METHOD OF MANUFACTURING A FLAT MULTI-LAYER PACKAGING AND PACKAGING THUS MANUFACTURED
US4340379A (en) * 1978-09-11 1982-07-20 Better Agricultural Goals Corporation Reinforced container for bulk material
US4337058A (en) * 1979-05-01 1982-06-29 Automated Packaging Systems, Inc. Method of making a container strip having inserts

Also Published As

Publication number Publication date
CA1264974C (en) 1990-01-30
US4726169A (en) 1988-02-23
ATE58334T1 (en) 1990-11-15
CA1264974A (en) 1990-01-30
EP0189092A3 (en) 1989-01-04
DE3502151A1 (en) 1986-07-24
EP0189092B1 (en) 1990-11-14

Similar Documents

Publication Publication Date Title
EP0189092B1 (en) Method for making bags of thermoplastic material
DE69209421T2 (en) Flexible containers
DE2707584C2 (en)
EP2998236B1 (en) Side gusseted bag and method for producing a side gusseted bag
DE1486733A1 (en) Plastic valve bag
WO2012048837A1 (en) Packing machine and method for filling sacks
DE3020043A1 (en) Foil bag with cross sealed bottom - has longitudinal overlap seam and self closing filler opening formed by interruption in weld seam
CH375979A (en) Block bottom bag with reinforcement strips and seamless bottom
DE3629852A1 (en) Carrier bag made of thermoplastic film
DE2552438C2 (en) Valve bag
DE3906001C2 (en)
DE3622968C2 (en)
DE2734352C2 (en) Pouch packing made of multi-layer material
EP0121041A2 (en) Side fold bag with an upholding outer bag and a liner bag, and method for its production
DE2709823A1 (en) SIDE GOLD BAG
DE2801963A1 (en) SINGLE OR MULTI-LAYER CROSS-BOTTOM BAG OF FOLDABLE MATERIAL AND METHOD FOR THE PRODUCTION THEREOF
DE2629867A1 (en) VALVE BAG
DE1454987B2 (en) PROCESS FOR MANUFACTURING MULTI-LAYERED PLASTIC SACKS, BAGS OR THE LIKE.
DE1227772B (en) Process for the production of multi-layer paper bags or sacks as well as apparatus for carrying out this process
DE3420622C2 (en)
DE1454987C (en) Process for the production of multilayer plastic bags, pouches or the like
DE1486726C (en) Multi-walled bag or sack with folds
CH686606A5 (en) Carrier bag
DE1486726B1 (en) Mehrwandi ger bag or sack provided with folds
DE3411622C2 (en) Process for the production of sacks for bulk goods from a plastic tube laid flat

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE FR GB IT LU NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE FR GB IT LU NL

17P Request for examination filed

Effective date: 19890217

17Q First examination report despatched

Effective date: 19900207

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE FR GB IT LU NL

REF Corresponds to:

Ref document number: 58334

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901213

Year of fee payment: 6

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19901231

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910110

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910111

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910121

Year of fee payment: 6

ITF It: translation for a ep patent filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910131

Year of fee payment: 6

EPTA Lu: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920114

Ref country code: GB

Effective date: 19920114

Ref country code: AT

Effective date: 19920114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19920131

BERE Be: lapsed

Owner name: WINDMOLLER & HOLSCHER

Effective date: 19920131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920801

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050114