DE1303917C2 - Verfahren zum herstellen von beuteln aus thermoplastischem kunststoff - Google Patents
Verfahren zum herstellen von beuteln aus thermoplastischem kunststoffInfo
- Publication number
- DE1303917C2 DE1303917C2 DE19631303917 DE1303917A DE1303917C2 DE 1303917 C2 DE1303917 C2 DE 1303917C2 DE 19631303917 DE19631303917 DE 19631303917 DE 1303917 A DE1303917 A DE 1303917A DE 1303917 C2 DE1303917 C2 DE 1303917C2
- Authority
- DE
- Germany
- Prior art keywords
- film
- webs
- layers
- foil
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
-
- 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
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- 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
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap 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
- B29C66/345—Progressively making the joint, e.g. starting from the middle
- B29C66/3452—Making complete joints by combining partial 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
- B29C66/40—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
- B29C66/431—Joining the articles to themselves
-
- 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
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
-
- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/005—Bags or like containers made of paper and having structural provision for thickness of contents by folding a single blank to U-shape to form the base of the bag and opposite sides of the body-portion, the remaining sides being formed by extensions of one or more of these opposite sides
-
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
-
- 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
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
- B29C66/43129—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams said flat seams being transversal but non-orthogonal with respect to the tubular or hollow articles, i.e. oblique
-
- 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
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
-
- 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
- B31B2155/00—Flexible containers made from webs
- B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom 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
- B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Making Paper Articles (AREA)
- Bag Frames (AREA)
Claims (1)
1 2
Patentanspruch: D'e erfindungsgemaße Lösung besteht darin, daß
für die Fotienbahnen und den Folienstreifen aus min-
Verfahren zum Herstellen von Beuteln aus destens zwei Schichten verschiedener Kunststoffe bethermoplaätischem
Ku: ^tstoff, bei dem zwei Fo- stehende Materialbahnen verwendet werden, wobei
üenbahnen deckend übereinandergelegt werden, S nur die aufeinander zu liegen kommenden Schichten
zwischen die Folienbalraen am Rand ein V-förmig der Folienbahnen und die den Folienbahnen zugeaach
innen gefalteter Folienstreifen eingeführt wandte Seite des gefalteten Folienstreifens gut
wird und danach Schweißnähte quer und längs schweißbar sind, und daß in dem V-förmig gefalteten
über die Folienbahnen gelegt werden, um Boden- Folienstreifen vor dem Einführen zwischen die Found!
Seitennähte der Beutel zu bilden, dadurch io lienbahnen im Abstand der gewünschten Beutelbreite
gekennzeichnet, daß für die Folienbahnen Lochungen vorgesehen werden, durch die hindurch
und den Folienstreifen aus mindestens zwei die Folienbahnen miteinander verschweißt werden,
Schichten verschiedener Kunststoffe bestehende und daß Schrägschweißungen von den Seitennähten
Materialbahnen verwendet werden, wobei nur die zur Bodennaht im Bereich des Folienstreifens außeraufeinander
zu liegen kommenden Schichten der xs halb der Lochungen geführt werden.
Folienbahnen und die den Folienbahnen züge- Die somit ermöglichte Verwendung mehrschichtiger wandte Seite des gefalteten Folienstreifens gut Folienbahnen und eines mehrschichtigen Bodenmateschweißbar sind, und daß in dem V-förmig gefal- rials hat zunächst den herstellungstechnischen Vorteten Folienstreifen vor dem Einführen zwischen teil, daß die Zuführung eines gesonderten V-förmig die Folienbahnen im Abstand der gewünschten »o gefalteten BodenmaterialstUckes wesentlich einfacher Beutelbreite Lochungen vorgesehen werden, durch ist als etwa die Einfaltung eines V-förmigen Bereiches die hindurch die Folienbahnen miteinandc ver- in eine durchgehende Folienbahn. Darüber hinaus schweißt werden, und daß Schrägschweißungen kann man durch die Verwendung verschiedener mehrvon den Seitennähten zur Bodennaht im Bereich schichtiger Materialien die jeweils gewünschten Eides Folienstreifens außerhalb der Lochungen ge- as genschaften für die Beutelseitenwände und den Beuführt werden. telboden in vorteilhafter Weise unterschiedlich gestalten und somit optimal den tatsächlichen Erfordernissen bezüglich Bruchfestigkeit und Standfestigkeit
Folienbahnen und die den Folienbahnen züge- Die somit ermöglichte Verwendung mehrschichtiger wandte Seite des gefalteten Folienstreifens gut Folienbahnen und eines mehrschichtigen Bodenmateschweißbar sind, und daß in dem V-förmig gefal- rials hat zunächst den herstellungstechnischen Vorteten Folienstreifen vor dem Einführen zwischen teil, daß die Zuführung eines gesonderten V-förmig die Folienbahnen im Abstand der gewünschten »o gefalteten BodenmaterialstUckes wesentlich einfacher Beutelbreite Lochungen vorgesehen werden, durch ist als etwa die Einfaltung eines V-förmigen Bereiches die hindurch die Folienbahnen miteinandc ver- in eine durchgehende Folienbahn. Darüber hinaus schweißt werden, und daß Schrägschweißungen kann man durch die Verwendung verschiedener mehrvon den Seitennähten zur Bodennaht im Bereich schichtiger Materialien die jeweils gewünschten Eides Folienstreifens außerhalb der Lochungen ge- as genschaften für die Beutelseitenwände und den Beuführt werden. telboden in vorteilhafter Weise unterschiedlich gestalten und somit optimal den tatsächlichen Erfordernissen bezüglich Bruchfestigkeit und Standfestigkeit
Die Erfindung betrifft ein Verfahren zum Herstel- anpassen. So würde nämlich eine Folienmaterialbahn,
[en von Beuteln aus thermoplastischem Kunststoff, 3° die relativ fest wäre, zwar gute Beutelseitenwände er-
bei dem zwei Folienbahnen deckend übereinanderge- geben, doch bestände für den Boden eine erhöhte
legt werden, zwischen die Folienbahnen am Rand ein Bruchgefahr. Würde dagegen einheitlich das für den
V-förmig nach innen gefalteter Folienstreifen einge- Boden geeignete bildsame und geschmeidige Folien-
führt wird und danach Schweißnähte quer und längs material verwendet, hätten die Seitenwände zu wenig
über die Folienbahnen gelegt werden, um Boden- und 35 Halt.
Seitennähte der Beutel zu bilden. Die Verwendung mehrschichtiger Folienbahnen hat
Bei der Verwendung von mehrschichtigen Folien- darüber hinaus den Vorteil, daß in sehr einfacher
bahnen für die Beutelherstellung mit einem mehr- Weise für die beiden äußeren Folienlagen die deutschichtigen
Bodenmaterial treffen im Bodenbereich lieh billigeren, nur einseitig schweißbaren Folien-Schichten
aufeinander, die nicht miteinander ver- 40 bahnen Verwendung finden können,
schweißbar sind. Nun ist zwar ein Verfahren bekannt. Es ist ferner möglich, für die Vorderseite und die mit dem nichtschweißbare Gegenstände mit schweiß- Rückseite eines Beutels nochmals unterschiedliche baren verbunden werden können, doch gibt dies zur Folienbahnen zu verwenden, um auch hier noch eine Lösung des aus der Verwendung von mehrschichtigen optimale Anpassung an die praktischen Anforderun-Folienbahnen resultierenden Problems nichts her. 45 gen zu ermöglichen.
schweißbar sind. Nun ist zwar ein Verfahren bekannt. Es ist ferner möglich, für die Vorderseite und die mit dem nichtschweißbare Gegenstände mit schweiß- Rückseite eines Beutels nochmals unterschiedliche baren verbunden werden können, doch gibt dies zur Folienbahnen zu verwenden, um auch hier noch eine Lösung des aus der Verwendung von mehrschichtigen optimale Anpassung an die praktischen Anforderun-Folienbahnen resultierenden Problems nichts her. 45 gen zu ermöglichen.
Dort handelt es sich nämlich darum, daß man den Bei der erfindungsgeimäß vorgesehenen Lage der
thermoplastischen Kunststoff in ein poröses, artfrem- gut schweißbaren Schichten der Folienbahnen und des
des Material eindringen läßt und dabei eine zugfeste gefalteten Folienstreifens können dann zwar ohne
Stoßverbindung zwischen derart einander artfremden weiteres die Schrägschweißungen und die untere
Werkstoffen in flächiger Form bildet, indem man die 50 Bodenrandschweißung zur Verbindung des gefalteten
thermoplastische Folie möglichst gleichmäßig auf di- Folienstreifens mit den beiden äußeren Folienlagen
elektrischem Weg mittels eines hochfrequenten elek- durchgeführt werden, doch wäre im Beutelseitenkantrischen
Wechselfeldes erwärmt., und zwar so stark, tenbereich eine alle vier Folienlagen verbindende
daß sie teilweise in die Unebenheiten des an der ent- Schweißung, wie sie für die Festigkeitseigenschaften
sprechenden Stelle mechanisch aufgerauhten oder 55 des Beutels sehr wichtig ist, nicht durchführbar. Die
aber perforierten artfremden Werkstoffes eindringen hier erforderliche Schweißung wird durch die Lokann,
chung ermöglicht, durch die hindurch die Folien-Der Eirfindung liegt die Aufgabe zugrunde, ein Ver- bahnen miteinander verschweißt werden können. Die
fahren der eingangs genannten Art so auszugestalten, Längsseitenkanten des Beutels werden durch eine
daß bei der Verwendung von mehrschichtigen Folien- 60 Schweißung gebildet, die über diese Lochung geführt
bahnen für die Beutelherstellung mit einem mehr- ist, so daß dann hier alle vier Lagen miteinander verschichtigen
Bodenmaterial die für eine gute Stand- bunden sind. Die Schrägschweißungen und die untefestigkeit
notwendige Verbindung der Beutelwände ren Bodenrandschweißungen werden dabei außerhalb
am Rand des Bodeneinsatzes einwandfrei und in ein- der Lochungen geführt, so daß in diesen Bereichen
fächer Weise herstellbar ist, obwohl hier im Boden- 65 nur eine Verbindung der äußeren Folienlage mit der
bereich Schichten aufeinandertreffen, die nicht mit- jeweils daran angrenzenden Folienlage des gefalteten
einandeif verscfiweißbar sind. Folienstreifens stattfindet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR69043047A FR1349272A (fr) | 1962-11-14 | 1962-11-14 | Récipient en matière plastique et son procédé de fabrication |
FR69043323A FR83259E (fr) | 1962-11-14 | 1963-02-13 | Récipient en matière plastique et son procédé de fabrication |
FR69044034A FR84495E (fr) | 1962-11-14 | 1963-09-27 | Récipient en matière plastique et son procédé de fabrication |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1303917C2 true DE1303917C2 (de) | 1975-08-07 |
DE1303917B DE1303917B (de) | 1975-08-07 |
Family
ID=27253623
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19631303917 Expired DE1303917C2 (de) | 1962-11-14 | 1963-11-07 | Verfahren zum herstellen von beuteln aus thermoplastischem kunststoff |
DED42880A Pending DE1281140B (de) | 1962-11-14 | 1963-11-07 | Beutel mit Boden aus thermoplastischem Kunststoff und Verfahren zu seiner Herstellung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED42880A Pending DE1281140B (de) | 1962-11-14 | 1963-11-07 | Beutel mit Boden aus thermoplastischem Kunststoff und Verfahren zu seiner Herstellung |
Country Status (13)
Country | Link |
---|---|
US (1) | US3380646A (de) |
AT (1) | AT247231B (de) |
BE (1) | BE639342A (de) |
CH (1) | CH421811A (de) |
DE (2) | DE1303917C2 (de) |
DK (1) | DK127242B (de) |
FI (1) | FI40415B (de) |
FR (4) | FR1349272A (de) |
GB (1) | GB1069268A (de) |
NL (2) | NL126868C (de) |
NO (1) | NO117965B (de) |
OA (1) | OA01407A (de) |
SE (1) | SE314189B (de) |
Families Citing this family (338)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE314626B (de) * | 1965-12-09 | 1969-09-08 | Akerlund & Rausing Ab | |
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US2899347A (en) * | 1959-08-11 | Method of making bag closure | ||
GB320289A (en) * | 1928-12-21 | 1929-10-10 | Frederic Becker | Improvements in or relating to paper bags and the like containers |
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US2378503A (en) * | 1942-12-07 | 1945-06-19 | Howard A Rohdin | Sewed double side seam bag |
US2721023A (en) * | 1952-10-16 | 1955-10-18 | Marathon Corp | Bag closure |
BE534852A (de) * | 1955-01-13 |
-
0
- NL NL300500D patent/NL300500A/xx unknown
- NL NL126868D patent/NL126868C/xx active
- BE BE639342D patent/BE639342A/xx unknown
-
1962
- 1962-11-14 FR FR69043047A patent/FR1349272A/fr not_active Expired
-
1963
- 1963-02-13 FR FR69043323A patent/FR83259E/fr not_active Expired
- 1963-09-27 FR FR69044034A patent/FR84495E/fr not_active Expired
- 1963-11-06 CH CH1364163A patent/CH421811A/fr unknown
- 1963-11-06 GB GB4381963A patent/GB1069268A/en not_active Expired
- 1963-11-07 DE DE19631303917 patent/DE1303917C2/de not_active Expired
- 1963-11-07 DE DED42880A patent/DE1281140B/de active Pending
- 1963-11-08 NO NO150740A patent/NO117965B/no unknown
- 1963-11-08 SE SE1234463A patent/SE314189B/xx unknown
- 1963-11-12 US US32288763 patent/US3380646A/en not_active Expired - Lifetime
- 1963-11-13 FI FI221063A patent/FI40415B/fi active
- 1963-11-14 AT AT912463A patent/AT247231B/de active
- 1963-11-14 DK DK534663A patent/DK127242B/da unknown
-
1964
- 1964-12-31 OA OA51877A patent/OA01407A/xx unknown
-
1965
- 1965-04-26 FR FR45916A patent/FR87996E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT247231B (de) | 1966-05-25 |
FR84495E (fr) | 1965-02-19 |
DK127242B (da) | 1973-10-08 |
FI40415B (de) | 1968-09-30 |
OA01407A (fr) | 1969-07-04 |
CH421811A (fr) | 1966-09-30 |
FR1349272A (fr) | 1964-01-17 |
NL126868C (de) | 1900-01-01 |
NO117965B (de) | 1969-10-13 |
US3380646A (en) | 1968-04-30 |
FR83259E (fr) | 1964-07-17 |
FR87996E (fr) | 1966-11-18 |
BE639342A (de) | 1900-01-01 |
NL300500A (de) | 1900-01-01 |
DE1281140B (de) | 1968-10-24 |
GB1069268A (en) | 1967-05-17 |
SE314189B (de) | 1969-09-01 |
DE1303917B (de) | 1975-08-07 |
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E77 | Valid patent as to the heymanns-index 1977 |