DE3321571A1 - Method for making a longitudinal seam on a packaging container and packaging container produced thereby - Google Patents

Method for making a longitudinal seam on a packaging container and packaging container produced thereby

Info

Publication number
DE3321571A1
DE3321571A1 DE19833321571 DE3321571A DE3321571A1 DE 3321571 A1 DE3321571 A1 DE 3321571A1 DE 19833321571 DE19833321571 DE 19833321571 DE 3321571 A DE3321571 A DE 3321571A DE 3321571 A1 DE3321571 A1 DE 3321571A1
Authority
DE
Germany
Prior art keywords
sealing strip
edge
seam
profile
heat
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.)
Withdrawn
Application number
DE19833321571
Other languages
German (de)
Inventor
Dieter 7141 Möglingen Liede
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19833321571 priority Critical patent/DE3321571A1/en
Publication of DE3321571A1 publication Critical patent/DE3321571A1/en
Withdrawn legal-status Critical Current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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5071—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/06—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape
    • B31F5/08—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape for reinforcing edges ; Applying a strip or tape to an edge, e.g. for decorating, for protecting
    • B31F5/085—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape for reinforcing edges ; Applying a strip or tape to an edge, e.g. for decorating, for protecting combined with folding the strip around the edge, or applying an already folded strip on
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/04—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially cylindrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/72—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets

Abstract

A packaging container has a longitudinal seam which is connected to a sealing strip (20) and which is sealed off. The sealing strip (20), which is formed from a flat, flexible and heat-sealable band, has essentially an I-shaped cross-section, of which the crossbars of the parts (21, 22, 23) forming the I-profile are sealed together with inner and outer edge regions (13 to 16) of the longitudinal seam and of which the intermediate parts (24, 25) forming the connecting web are sealed together with the faces of the longitudinal edges (11, 12). The sealing strip (20) can be formed from a multi-layer band. <IMAGE>

Description

Verfahren zum Herstellen einer Längsnaht an einemMethod for producing a longitudinal seam on a

Verpackungsbehälter und danach hergestellter Ycrpackuagsbehilter Stand der Technik Die Erfindung geht aus von einem Verfahren zum Herstellen einer Längsnaht an einem Verpackungsbehälter nach der Gattung des Hauptanspruchs. Bei einem durch die US-PS 3 066 063 bekannt gewordenen Verfahren dieser Art wird ein Siegelstreifen aus Kunststoff (Figur 9 und 10) mit einem I-Querschnitt extrudiert, zwischen zwei gegenander gerichtete Ränder einer Packstoffhülse geführt und die Querbalken des I-Profils mit den Randbereichen verpresst, so daß diese ein innige Bindung mit den Randbereichen der' Längsnaht der Packstoffhülse eingehen. Bei dieser bekannten Form einer Stoßnaht sind die Schnittkanten der Ränder,an denen die einzelnen Packstoffschichten, beispielsweise Karton oder Metall, offenliegen und dem Angriff des Füllguts ausgesetzt sind, seßr gut geschützt. Nachteilig ist jedoch, daß der Siegsistreifen wegen seines komplizierten I-Profils am Ort der Langsn&htbildung hergestellt werden muß. Es ist daher ein Verfahren erstrebenswert, bei dem ein flacher, vorgefertigter Siegelstreifen zum Verbinden und Abdichten einer Längsnaht eines Behälters verwendet werden kann.Packaging container and then manufactured Ycrpackuagsbehilter stand TECHNOLOGY The invention is based on a method for producing a longitudinal seam on a packaging container according to the preamble of the main claim. With one through The method of this type disclosed in US Pat. No. 3,066,063 is a sealing strip extruded from plastic (Figures 9 and 10) with an I-cross section, between two mutually facing edges of a packaging tube and the crossbar of the I-profile pressed with the edge areas, so that this is an intimate bond with the Edge areas of the 'longitudinal seam of the packaging material sleeve enter. In this known form of a butt seam are the cut edges of the edges on which the individual packaging material layers, for example cardboard or metal, are exposed and exposed to the attack of the contents are, very well protected. The disadvantage, however, is that the victory strip because its complicated I-profile can be made at the place of the longitudinal seam got to. It is therefore desirable to have a method in which a flat, prefabricated Sealing strips used to connect and seal a longitudinal seam of a container can be.

Vorteile ter Erfindung Das erfidungsgemäße Verfahren mit den kennzeichnenden Merkmalen des Hauptanspruchs hat den Vorteil, daß unter Verwendung eines vorgefertigten, flachen Siegelstreifens eine einfache Vorrichtung zum Formen und Verbinden des Siegelstreifens mit den Längsrändern des Packetoffes im Längsnahtbereich verwendet werden kann.Advantages of the invention The method according to the invention with the characterizing Features of the main claim has the advantage that using a prefabricated, flat sealing strip a simple device for forming and connecting the sealing strip can be used with the longitudinal edges of the packing material in the longitudinal seam area.

Ein nach dem erfindungsgemäßen Verfahren hergestellter Verpackungsbehälter mit den Merkmalen des Anspruchs 3 hat den Vorteil, daß bei Anordnung eines Siegelstreifens aus einem Mehrschichtlaminat mit einer Dichtachicht aus beispielsveise Metall, die Längsnaht eine sehr hohe Dichtigkeit gegen Gasdiffusion hat. Da ferner die Ränder des Siegelstreifens auf der Außenseite des Behälters angeordnet sind, kommen auch die Schnittkanten des Siegelstreifens mit dem Fullgut nicht in Beruhrung und können dieses auch nicht beeinflussen.A packaging container produced by the method according to the invention with the features of claim 3 has the advantage that when a sealing strip is arranged made of a multilayer laminate with a sealing layer made of metal, for example, which The longitudinal seam has a very high level of impermeability to gas diffusion. There are also the edges of the sealing strip are arranged on the outside of the container, also come the cut edges of the sealing strip are not in contact with the product and cannot do not influence this either.

Zeichnung Zwei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Rumpf eines Verpackungsbehälters in schoubildlicher Ansicht, Figur 2 die Längsnaht nach Figur 1. im Querschnitt in der Ebene 1I-II der Figur 1 vergrößert und Figur 3 ein zweites Ausführungsbeispiel einer Längsnaht im Querschnitt.DRAWING Two embodiments of the invention are shown in the drawings and in the following description explained in more detail. FIG. 1 shows a body of a packaging container in a pictorial view, FIG. 2 shows the longitudinal seam according to FIG. 1 in cross section in the plane 1I-II of the figure 1 enlarged and FIG. 3 shows a second exemplary embodiment of a longitudinal seam in cross section.

Beschreibung der Ausführungsbeispiele Aus einem Zuschnitt oder einer Bahn aus einem handelsublichen Packstoff vird ein hülsenförmiger Rumpf 10 geformt, bei dem die Längsränder 11, 12 des Zuschnitts oder der Bahn im Längsnahtberech gegeneinander gerichtet auf Stoß gelegt sind. Im Nahtbereich ist ein Siegeistreifen 20 angeordnet, der im wesentliehen einen I-frmigen Querschnitt hat. Der Siegelstreifen 20 wird aus einem heißsiegelfähigen, flexiblen, flachen Band gebildet, dessen mittlerer Teil zu einem Flachschlauch 21 geformt den einen Querbalken des Profils bildend auf den beiden inneren Randbereichen 13, 14 der Längsränder 11, 12 im Innern des Rumpfes 10 anliegt, dessen Randteile 22, 23 den anderen Querbalken des Profils bildend auf die beiden äußeren Randbereich 15, 16 umgelegt sind und dessen zwischenliegende Teile 24, 25 den Stoßspalt zwischen den beiden Längsrändern 11, 12 ausfüllend den Verbindungssteg des Profils bildend durchsetzen. Die an den Längsrändern 11, 12 und an deb Randbereichen 13 bis 16 anliegenden Teile des Siegelstreifens 20 sind mit dem Packstoff des Rumpfes 10 durch Siegelung dicht und fest verbunden. Außerdem sind der Flachschlauch 21 in sich und die zwischenliegenden Teile 24, 25 des Steges miteinander verschweißt.Description of the exemplary embodiments From a blank or a A sleeve-shaped body 10 is formed from a commercially available packaging material, in which the longitudinal edges 11, 12 of the blank or the web in the longitudinal seam area against each other directed towards impact. A victory strip 20 is arranged in the seam area, which essentially has an I-shaped cross-section. The sealing strip 20 is formed from a heat-sealable, flexible, flat tape, the middle of which Partly formed into a flat hose 21 forming a crossbeam of the profile on the two inner edge regions 13, 14 of the longitudinal edges 11, 12 in the interior of the Fuselage 10 rests, the edge parts 22, 23 of which form the other crossbeam of the profile are folded over onto the two outer edge regions 15, 16 and its intermediate Parts 24, 25 fill the joint gap between the two longitudinal edges 11, 12 Enforce the connecting web of the profile. The on the longitudinal edges 11, 12 and parts of the sealing strip 20 which are in contact with the edge regions 13 to 16 with the packaging material of the body 10 tightly and firmly connected by sealing. aside from that are the flat hose 21 in itself and the intermediate ones Parts 24, 25 of the web welded together.

Bei dem Ausführungsbeispiel nach Figur 2 besteht der Siegelstreifen 20 aus einem homogenen thermoplastischen Kunststoff, beispielsweise Polyäthylen, Polypropylen u.a. Er kann aber auch, wie in Figur 2 dargestellt ist, aus einem Mehrschichtlaminat bestehen, dessen Außenschichten 27, 28, die eine Isolier- und Siegelfunktion haben, aus einem thermoplastischen Kunststoff, wie Polyathylen bestehen. Die mittlere Schicht 29, die eine Dicht- und Trägerfunktion hat, besteht aus Metall, beispielsweise einer Aluminiumfolie, oder einer festen, orientierten Kunststoffolie aus Polyamid, Polypropylen oder Polyester. Es können auch zwei mittlere Schichten angeordnet sein, von denen die eine aus Metall und die andere aus einem hochfesten Kunststoff besteht.In the exemplary embodiment according to FIG. 2, there is the sealing strip 20 made of a homogeneous thermoplastic material, for example polyethylene, Polypropylene, etc. It can also, as shown in Figure 2, made of a multilayer laminate exist whose outer layers 27, 28, which have an insulating and sealing function, consist of a thermoplastic such as polyethylene. The middle layer 29, which has a sealing and support function, is made of metal, for example one Aluminum foil, or a solid, oriented plastic film made of polyamide, polypropylene or polyester. There can also be two middle layers, one of which one made of metal and the other made of a high-strength plastic.

Der Rumpf 1 besteht aus einem innen und außen heiBsiegelbaren Packstoff. Bei dem dargestellten Ausführungsbeispiel ist dieser dreischichtig aufgebaut und hat eine innere Isolier- und Siegelschicht 17 aus einem thermoplastischen Kunststoff,wie Polyäthylen, eine mittlere Dichtschicht 18 aus Metall und eine äußere Trägerschicht 19 aus Karton. Die äußere Trägerschicht 19 hat zusatzlich eine dünne Schicht aus Heißsiegellack.The body 1 consists of a packaging material which can be heat-sealed on the inside and outside. In the illustrated embodiment, this is constructed in three layers and has an inner insulating and sealing layer 17 made of a thermoplastic material, such as Polyethylene, a middle sealing layer 18 made of metal and an outer carrier layer 19 made of cardboard. The outer carrier layer 19 also has a thin layer Heat seal lacquer.

Zum Herstellen der Langsnaht des Rumpfes 10 wird eine Packstoffbahn zu einer Hülse fortlaufend geformt, wobei ihre Längsränder 11, 12 gegeneinander geführt werden.To produce the longitudinal seam of the fuselage 10, a sheet of packaging material is used continuously formed into a sleeve, with its longitudinal edges 11, 12 against one another be guided.

In den Spalt zwischen den Lãngsrãndern 11, 12 wird der Siegelstreifen 20 zunächst in Porm eines U-Profils eingeführt, wobei der mittlere Teil, der den Grund des U-Profils bildet, in das Innere des Rumpfes 10 ragt. Beim Verkleinern des Spaltes bildet der mittlere Teil einen Schlauch, der zu einem Flachschlauch 21 flach und gegen die inneren Randbereiche 13, 14 der Längsränder 11, 12 gedrückt wird. Die beiden außeren, die Schenkel des U-Profils bildenden Randteile 22, 23 werden auf die angrenzenden Randbereiche 15, 16 auf der Außenseite des Rumpfes 10 umgelegt. Durch Zuführen von Wärme und Gegeneinanderpressen der die beiden Querbalken des I-Profils bildenden Teile des Siegelstreifens 20 gegen die Randbereiche 13 bis 16 des Rumpfes 10 werden die Randteile 22, 23 und der Flachschlauch 21 sowie die zwischenliegenden Teile 24, 25 des Siegelstreifens 20 mit den angrenzenden Randbereichen 13 bis 16 und den Kanten der Längsränder 11, 12 der Längsnaht des Rumpfes 10 fest und dicht verschweißt bzw. versiegelt.The sealing strip is in the gap between the longitudinal edges 11, 12 20 initially introduced in the form of a U-profile, the middle part of the The base of the U-profile forms, protrudes into the interior of the fuselage 10. At the Zoom out of the gap, the middle part forms a tube that becomes a flat tube 21 flat and pressed against the inner edge regions 13, 14 of the longitudinal edges 11, 12 will. The two outer edge parts 22, 23, which form the legs of the U-profile are on the adjoining edge areas 15, 16 on the outside of the fuselage 10 knocked down. By applying heat and pressing the two crossbars against each other of the I-profile forming parts of the sealing strip 20 against the edge areas 13 to 16 of the fuselage 10 are the edge parts 22, 23 and the flat hose 21 as well as the intermediate parts 24, 25 of the sealing strip 20 with the adjacent edge areas 13 to 16 and the edges of the longitudinal edges 11, 12 of the longitudinal seam of the fuselage 10 and tightly welded or sealed.

Außerdem verschweißt der Flachschlauch 21 in sich selber und die beiden zvischenliegenden Teile 24, 25 miteinander. Von der laufend so gebildeten Hülse können einzelne Rümpfe 10 abgeschnitten werden.In addition, the flat hose 21 welds into itself and the two between parts 24, 25 with one another. From the sleeve that is continuously formed in this way individual hulls 10 can be cut off.

Zum Erhöhen der Umfangsfestigkeit des Rumpfes 10 sind bei dem Ausführungsbeispiel nach Figur 3 die beiden auf die äußeren Randbereiche 15, 16 umgelegten Randteile 22, 23 des Siegelstreifens 20 mit einem zusatzlichen Teil 26 des Siegelstreifens 20 überdeckt und verschweißt. Dieser Teil 26 wird beim Umformen des Siegelstreifens 20 zunächst als Verbreiterung eines Schenkels des U-Profils ausgebildet und nach dem Umlegen der Teile 22, 23 auf diese zurückgefaltet.To increase the hoop strength of the fuselage 10 are in the embodiment According to FIG. 3, the two edge parts folded over onto the outer edge regions 15, 16 22, 23 of the sealing strip 20 with an additional part 26 of the sealing strip 20 covered and welded. This part 26 is formed when the sealing strip is formed 20 initially designed as a widening of a leg of the U-profile and after folding back the parts 22, 23 onto them.

Die für den Rumpf 10 und den Siegelstreifen 20 angeführten Packstoffe sind nur beispielhaft. Der Schichtaufbau des Siegelstreifens 20 und des Rumpfes 10 kann auch anders gestaltet sein und aus anderen Materialien bestehen, und zwar je nach den jeweiligen Anforderungen an den Verpackungsbehälter und den dafür bekannten Packstoffen und Packstoffkombinationen.The packaging materials listed for the body 10 and the sealing strip 20 are only exemplary. The layer structure of the sealing strip 20 and the fuselage 10 can also be designed differently and consist of other materials, depending on the respective requirements for the packaging container and the known packaging materials and packaging material combinations.

Vorhergehend ist insbesondere die Herstellung eines Rumpfes 10 beschrieben worden, der mit einem Boden und einem Deckel verschlossen werden kann. Es ist jedoch im Rahmen der Erfindung auch möglich den Kopf und/oder Boden durch bekannte Faltung und Siegelung zu ververschließen.In particular, the manufacture of a fuselage 10 is described above which can be closed with a bottom and a lid. However, it is Within the scope of the invention it is also possible to fold the head and / or bottom by known folding and seal.

- Leerseite -- blank page -

Claims (1)

Ansprüche 1. Verfahren zum Herstellen einer Längsnaht an einem rpackungsbehälter, bei dem eine heißsiegelfähige Packstoffbahn zu einem hülsenförmigen Rumpf mit gegeneinander auf Stoß liegenden Längsra-ndern geformt und zwischen die Längsränder ein heißsiegelfähiger flexibler Siegelstreifen eingeführt wird, der zu einem im wesentlichen I-förmigen Querschnitt geformt und mit den Randbereichen der Naht versiegelt wird, dadurch geXennzeichnet, daß der zunächst flache Siegeistreifen zu einem U-Profil geformt und zwischen den beiden gegeneinander gerichteten Längsrändern 11, 12 angeordnet wird, wobei sein mittlerer, den Grund des U-Profils enthaltender Teil im Innern des Rumpfes (10) liegt, daß der mittlere Teil des Streifens zu einem die inneren Randbereiche (13, 14) der Lãngsränder deckenden Flachschlauch (2j) geformt wird, daß jeder der beiden die Schenkel des U-Profils bildenden Randteile (22, 23) des Siegelstreifens auf dem jeweils angrenzenden äußeren Randbereich (J5 " 6) der Naht umgelegt wird, und daß der mittlere Teil des Siegelstreifens mit den inneren Randlereicnen und die Randteile des Siegelstreifens mit den äußeren Randbereichen der Naht durch Aufbringen von Druck und Wärme verschweißt werden 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Siegelstreifen (20) zunächst zu einem U-Profil mit einem verbreiterten Schenkel geformt wird und daß der verbreiterte Teil (26) des Schenkels auf die beiden auf den äußeren Randbereichen (15, 16) der Naht umgelegten Schenkel diese deckend rückgefaltet wird.Claims 1. A method for producing a longitudinal seam on a packing container, in which a heat-sealable packaging material web forms a sleeve-shaped body with one another Long edges lying on butt joint and a heat-sealable one between the long edges flexible sealing strip is introduced, which becomes a substantially I-shaped Cross-section is shaped and sealed with the edge areas of the seam, thereby marked that the initially flat Siegeistreifen formed into a U-profile and arranged between the two mutually directed longitudinal edges 11, 12 is, with its middle, the base of the U-profile containing part inside of the fuselage (10) lies that the middle part of the strip becomes one of the inner ones Edge regions (13, 14) of the flat tube (2j) covering the longitudinal edges is formed, that each of the two legs of the U-profile forming edge parts (22, 23) of the Sealing strip on the adjacent outer edge area (J5 "6) of the seam is turned over, and that the middle part of the sealing strip with the inner edge lines and the edge portions of the sealing strip with the outer edge regions of the seam through Application of pressure and heat are welded 2. Procedure according to Claim 1, characterized in that the sealing strip (20) initially to one U-profile is formed with a widened leg and that the widened Part (26) of the leg on the two on the outer edge regions (15, 16) of the Seam folded leg this is folded back to cover it. 3. Verpackungsbehälter aus einem heißsiegelfähigem Packstoff mit einer Längsnaht, in der die Lgngsrander des Packstoffes auf Stoß liegen und mit einem im Querschnitt im wesentlichen I-förmigen den Stoßspalt durchsetzenden Siegelstreifen versiegelt sind, dadurch gekennzeichnet, daß der im Innern des Behälters angeordnete, einen ersten Querbalken des Profils bildende Teil des Siegelstreifens (20) die Form eines flachliegenden Schlauches (21) hat, daß die auf der Außenseite des Behälters angeordneten, einen zweiten Querbalken des Profils bildenden Randteile (22, 23) des Siegclstreifens auseinander weisen und daß die aneinander anliegenden Teile des Siegelstreifens in sich und die an den Randbereichen (13 bis 16) des Packstoffes anliegenden Teile mit diesem versiegelt sind.3. Packaging container made of a heat-sealable packaging material with a Longitudinal seam in which the longitudinal edges of the packaging material are butted and with a in cross section essentially I-shaped sealing strips penetrating the joint gap are sealed, characterized in that the arranged inside the container, a first transverse bar of the profile forming part of the sealing strip (20) the mold a flat-lying hose (21) has that on the outside of the container arranged, a second transverse beam of the profile forming edge parts (22, 23) of the sealing strip point apart and that the parts resting against one another of the sealing strip in itself and on the edge areas (13 to 16) of the packaging material adjacent parts are sealed with this. 4. Behälter nach Anspruch 3, dadurch gekennzeichnet, daß ein Randteil des Siegelstreifens (20) verbreitert ist und dessen verbreiteter Randbereich (26) auf die auf den Randbereichen (15, 16) liegenden Randteile (22, 23) rückgefaltet und mit diesen versiegelt ist.4. Container according to claim 3, characterized in that an edge part of the sealing strip (20) is widened and its widened edge area (26) folded back onto the edge parts (22, 23) lying on the edge regions (15, 16) and is sealed with these. 5. Verpackungsbehälter nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Dichtstreifen (20) aus einer einlagigen, thermoplsstischen Kunststoffolie besteht.5. Packaging container according to claim 3 or 4, characterized in that that the sealing strip (20) consists of a single-layer, thermoplastic plastic film consists. 6. Verpackungsbehälter nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Dichtstreifen (20) aus einer Folie mit mehreren Schichten (17, 18, 19) besteht, von denen die außenliegenden Schichten (17, 19) heißsiegelfähig sind.6. Packaging container according to claim 3 or 4, characterized in that that the sealing strip (20) consists of a film with several layers (17, 18, 19), the outer layers (17, 19) of which are heat-sealable.
DE19833321571 1983-06-15 1983-06-15 Method for making a longitudinal seam on a packaging container and packaging container produced thereby Withdrawn DE3321571A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006517A2 (en) * 1987-02-24 1988-09-07 Raychem Corporation Method of joining articles
DE10221432A1 (en) * 2002-05-14 2003-12-04 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Hose-form bag for liquid or paste foodstuffs has hose-form part formed from one-piece foil with long edges forming lap seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006517A2 (en) * 1987-02-24 1988-09-07 Raychem Corporation Method of joining articles
WO1988006517A3 (en) * 1987-02-24 1988-12-15 Raychem Corp Method of joining articles
DE10221432A1 (en) * 2002-05-14 2003-12-04 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Hose-form bag for liquid or paste foodstuffs has hose-form part formed from one-piece foil with long edges forming lap seal

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