EP0450114A1 - Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée - Google Patents

Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée Download PDF

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Publication number
EP0450114A1
EP0450114A1 EP90106289A EP90106289A EP0450114A1 EP 0450114 A1 EP0450114 A1 EP 0450114A1 EP 90106289 A EP90106289 A EP 90106289A EP 90106289 A EP90106289 A EP 90106289A EP 0450114 A1 EP0450114 A1 EP 0450114A1
Authority
EP
European Patent Office
Prior art keywords
handle
layers
double
film
folding
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
EP90106289A
Other languages
German (de)
English (en)
Other versions
EP0450114B1 (fr
Inventor
Schwinn Georg
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.)
Mondi Gronau GmbH
Original Assignee
M&W Verpackungen Mildenberger and Willing 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 M&W Verpackungen Mildenberger and Willing GmbH filed Critical M&W Verpackungen Mildenberger and Willing GmbH
Priority to DK90106289.3T priority Critical patent/DK0450114T3/da
Priority to DE90106289T priority patent/DE59004041D1/de
Priority to EP90106289A priority patent/EP0450114B1/fr
Priority to ES90106289T priority patent/ES2048882T3/es
Publication of EP0450114A1 publication Critical patent/EP0450114A1/fr
Application granted granted Critical
Publication of EP0450114B1 publication Critical patent/EP0450114B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/08—Hand holes
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs
    • B31B70/868—Applying handles on a moving web followed by transverse folding
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding

Definitions

  • the invention relates to a method for producing portable packaging bags made of plastic film, which are initially open at their lower end for filling and can be closed there after filling, each having an approximately rectangular front and rear surface part, the side parts by side and by a folded lid part in the head area are connected to each other, and have a handle reaching over the folded lid part.
  • the method steps mentioned in both variants are preferably carried out continuously and for the most part with temporal overlap.
  • the order of the steps can also be swapped in some cases according to professional judgment.
  • the punching and welding of a handle contour could also take place before the weld seams are carried out. If necessary, punching or welding a handle contour could be dispensed with in the case of very simple bags.
  • the two handle double layers with a handle recess.
  • the double handle layers can remain unconnected, can be connected by reusable gluing or by a weld. Furthermore, it is proposed to incorporate a weakening line in the area of the kink of the middle part or the later folding lid part.
  • top, bottom, vertical, head part and the like chosen in the claims and in the following description are based on a filled bag, which is placed in the carrying position and which is usually used individually.
  • the bag has a high dimensional stability.
  • the handle should preferably be equipped with hot-seam punching, as well as the punching out of the handle holes, so that all accesses to the inside of the bag are closed. But it is also possible to punch out the handle holes without creating a seam.
  • the bag is made from a conventional flat film and is particularly suitable for holding pulp diapers in a pressed form.
  • FIG. 1 A portable, filled packaging bag 1 made of plastic film, as is produced according to both method variants, is shown in FIG.
  • the bag 1 has a cuboid shape, this shape can also be given a more or less pronounced cushion shape by bulges, curves and the like, which is essentially determined by its content.
  • the bag 1 has a rectangular front and rear surface part 9 or 10, which are connected by side parts 42, 43. Vertical seams 20, 21 run through the side parts 42, 43, a tube shape being formed by heat sealing or by similar known types of connection. Furthermore, the parts 9, 10, 42, 43 are integrally connected to one another by a folding lid part 4 at the upper head region. At the lower, initially open, filling end 34, the bag 1 is closed by a transverse weld 35 after mechanical filling, as is known per se.
  • the folded lid part 4 extends into raised edges 7, 8 and forms a recess 4 'which is lower by a small part of the total height of the packaging bag.
  • a handle 2 which is formed from two handle parts 14 and 15, extends over the folding lid part 4.
  • the handle parts 14 and 15 are in the head region of the bag 1 made in one piece with the two surface parts 9 and 10.
  • the two handle parts 14, 15 also have a coinciding handle recess 13.
  • the handle 2 consists of the two handle parts 14, 15, which at their parallel outer edges, ie. H. are connected to one another at the apex to form a bracket along a seam 16, preferably a heat seal seam.
  • the handle parts 14, 15 consist of a double layer of film (double handle layer), which will be explained in the following.
  • the surface parts of the handle parts 14, 15 projecting outward from the handle recess 13 on both sides are each formed with a preferably arcuate recess 18, 19 in the direction of the vertical edges of the surface parts 9, 10 in narrow tongues 22, 23.
  • the edge of the two handle parts is also welded to their cut edge.
  • the folding lid part 4 is provided with a tearable weakening line 25 running along the central inner fold 24 or the other regions. This can preferably be formed by a perforation.
  • the plastic film web 26 used for the bag production is made of a preferably two-layer composite film with a thin-film film which is particularly suitable for applying a color print as the outer film and a supporting inner film having comparatively good welding and strength properties, e.g. B. made of a polyethylene film layer.
  • a supporting inner film having comparatively good welding and strength properties, e.g. B. made of a polyethylene film layer.
  • the outer layer can be opaque and, for example, can be provided with a print on its outer surface.
  • the inner layer can be made transparent or opalescent with greater strength than the outer layer of the composite film.
  • the manufacture of the aforementioned bags is not limited to such materials.
  • Single-layer foils or composite foils made of plastic / paper or also paper alone can also be used.
  • Figures 1 to 5 show in detail the steps of the manufacturing process and thus show the emergence of the packaging bag equipped according to the invention.
  • an "endless" film web 26 is rolled off a roll (not shown) and pulled over a machine table, the film running direction being designated by V.
  • the film is delimited at its outer edges 11, 12 by a straight edge.
  • the center line of the film web is designated y - y.
  • Two double layers of handles 36, 37 are folded upwards to the right and left of the line y - y at equal intervals.
  • the height and spacing of the double handle layers 36 and 37 depend on the size and dimensions of the bag. In principle, the height of the double handle layers should be greater than the distance between them, ie greater than the width of the central part 27.
  • the double handle layers are therefore parallel to one another and parallel to the line y - y. Their folds run in the direction of foil V.
  • a grip contour is punched and welded to the double grip layers, the recesses 18, 19 resulting, and the grip recess 13, as can be seen in FIG. 5.
  • two seams 28, 29 are provided below the handle recess 13 in the manufacturing phase according to FIG. 4, which seal the double handle layers 36, 37 against the inside of the bag.
  • these seams are not absolutely necessary for the function of the carrying bag.
  • a film web 16 ' is laid out in the running direction W.
  • the opposite edges 31, 32 are smooth.
  • the film web 16 'lying in the running direction W is divided into repeat lengths. Here folds are folded out transversely to the running direction W and transversely to the center line z-z, so that double grip layers 36, 37 result.
  • the distance between the two handle double layers is again occupied by the middle part 27.
  • the double grip layers 36, 37 are repeated at repeat intervals.
  • the middle part 27 is folded transversely to the center line z-z to form a kink. Subsequently, the surface parts 9, 10 lying outside with respect to the double grip layers 36, 37, which each belong to a repeat length and form their beginning and end, are placed one on top of the other. Weld seams are made on the vertical edges of the surface parts and the handle contour is punched and welded.
  • the sequences of work steps mentioned in Examples 1 and 2 are advantageously suitable for the largely continuous and on-line production of the packaging bags 1 described at the outset and their subsequent filling.
  • the film web 26 can be printed continuously in the register. It is not necessary to insert side strips.
  • the filled bag has a high dimensional stability.
  • the bag can be opened in a simple manner. It is particularly advantageous if the two double layers of handles are not fastened to one another, but only lie loosely on top of one another, possibly connected to one another by a detachable adhesive seam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP90106289A 1990-04-02 1990-04-02 Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée Expired - Lifetime EP0450114B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK90106289.3T DK0450114T3 (da) 1990-04-02 1990-04-02 Fremgangsmåde til fremstilling af en bærbar emballagepose med falselågdel af formstoffolie
DE90106289T DE59004041D1 (de) 1990-04-02 1990-04-02 Verfahren zur Herstellung tragbarer Verpackungsbeutel mit Falzdeckelteil aus Kunststoffolie.
EP90106289A EP0450114B1 (fr) 1990-04-02 1990-04-02 Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée
ES90106289T ES2048882T3 (es) 1990-04-02 1990-04-02 Procedimiento para la fabricacion de bolsas de embalaje portatiles de lamina de plastico con tapa plegable incorporada.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90106289A EP0450114B1 (fr) 1990-04-02 1990-04-02 Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée

Publications (2)

Publication Number Publication Date
EP0450114A1 true EP0450114A1 (fr) 1991-10-09
EP0450114B1 EP0450114B1 (fr) 1993-12-29

Family

ID=8203849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106289A Expired - Lifetime EP0450114B1 (fr) 1990-04-02 1990-04-02 Procédé pour la fabrication d'une pochette d'emballage portable en plastique avec la partie haute pliée

Country Status (4)

Country Link
EP (1) EP0450114B1 (fr)
DE (1) DE59004041D1 (fr)
DK (1) DK0450114T3 (fr)
ES (1) ES2048882T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014059526A1 (fr) 2012-10-19 2014-04-24 Peel Plastic Products Limited Sac à poignée
CN114474858A (zh) * 2021-12-23 2022-05-13 京泰包装科技(长兴)有限公司 一种袋子加工工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH377630A (de) * 1958-09-15 1964-05-15 Hesser Ag Maschf Vorrichtung zum Herstellen von Flachbeuteln
CA907574A (en) * 1971-06-18 1972-08-15 Polycraft Company Limited Reusable bag
DE2622659A1 (de) * 1976-05-20 1977-12-01 Neemann M Fa Kunststofftragbeutel
US4691368A (en) * 1985-06-20 1987-09-01 Ocor Products Corporation Flexible block packaging
US4786190A (en) * 1986-08-11 1988-11-22 Minigrip, Inc. Reclosable package having outer reclosable closure and inner non-reclosable closure
DE3803148A1 (de) * 1988-02-03 1989-08-24 Michael Pfizenmaier Blockbodenbeutel mit integriertem handgriff, sowie verfahren bzw. vorrichtung zum herstellen von blockbodenbeuteln mit integriertem handgriff

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH377630A (de) * 1958-09-15 1964-05-15 Hesser Ag Maschf Vorrichtung zum Herstellen von Flachbeuteln
CA907574A (en) * 1971-06-18 1972-08-15 Polycraft Company Limited Reusable bag
DE2622659A1 (de) * 1976-05-20 1977-12-01 Neemann M Fa Kunststofftragbeutel
US4691368A (en) * 1985-06-20 1987-09-01 Ocor Products Corporation Flexible block packaging
US4786190A (en) * 1986-08-11 1988-11-22 Minigrip, Inc. Reclosable package having outer reclosable closure and inner non-reclosable closure
DE3803148A1 (de) * 1988-02-03 1989-08-24 Michael Pfizenmaier Blockbodenbeutel mit integriertem handgriff, sowie verfahren bzw. vorrichtung zum herstellen von blockbodenbeuteln mit integriertem handgriff

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014059526A1 (fr) 2012-10-19 2014-04-24 Peel Plastic Products Limited Sac à poignée
US8961012B2 (en) * 2012-10-19 2015-02-24 Peel Plastic Products Limited Bag with handle
EP2911943A4 (fr) * 2012-10-19 2016-07-20 Peel Plastic Products Ltd Sac à poignée
CN114474858A (zh) * 2021-12-23 2022-05-13 京泰包装科技(长兴)有限公司 一种袋子加工工艺

Also Published As

Publication number Publication date
EP0450114B1 (fr) 1993-12-29
DE59004041D1 (de) 1994-02-10
DK0450114T3 (da) 1994-05-09
ES2048882T3 (es) 1994-04-01

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